TY - CPAPER T1 - Certifying Wildland Recreationists: Lessons from the Tragedy of the Commons T2 - American Sociological Association AN - 61750362; 92S25897 AB - In an investigation of the values, attitudes, & behavior hierarchy among urban, ethnically & racially diverse visitors to recreation sites of 2 national forests in southern Calif, survey data were obtained from 270 Anglos, Hispanics, Mexican Americans, & Central Americans. The most frequently held value was "to have fun & enjoyment in life." Attitudes about particular recreation activities indicated that resting on weekends, attending movies, fishing, jogging, snow skiing, & tennis were the activities most likely to reinforce these values. These findings do not support the belief that behaviors follow attitudes; the influence of other factors on behavior are discussed. JF - American Sociological Association AU - Chavez, Deborah J Y1 - 1992///0, PY - 1992 DA - 0, 1992 KW - recreational activities, attitudes vs behaviors, California national forest visitors KW - survey data KW - California KW - Attitudes KW - Recreation KW - Behavior KW - Parks KW - Forestry KW - proceeding KW - 2656: environmental interactions; environmental interactions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/61750362?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Asocabs&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=American+Sociological+Association&rft.atitle=Certifying+Wildland+Recreationists%3A+Lessons+from+the+Tragedy+of+the+Commons&rft.au=Chavez%2C+Deborah+J&rft.aulast=Chavez&rft.aufirst=Deborah&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Sociological+Association&rft.issn=&rft_id=info:doi/ LA - English DB - Sociological Abstracts N1 - Date revised - 2009-03-10 N1 - Publication note - 1992 N1 - Last updated - 2016-09-28 ER - TY - JOUR T1 - Postglacial climate changes and the occurrence of regional erosion surfaces, Midwest, USA AN - 52716329; 1997-035296 JF - International Geological Congress, Abstracts--Congres Geologique Internationale, Resumes AU - Olson, Carolyn G AU - Anonymous Y1 - 1992 PY - 1992 DA - 1992 SP - 387 PB - [International Geological Congress], [location varies] VL - 29 KW - upper Wisconsinan KW - United States KW - Quaternary KW - Illinois KW - erosion surfaces KW - clastic sediments KW - postglacial environment KW - erosion features KW - till KW - paleoclimatology KW - Iowa KW - Holocene KW - Wisconsinan KW - upper Pleistocene KW - Cenozoic KW - Illinoian KW - Indiana KW - sediments KW - Pleistocene KW - loess KW - Midwest KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52716329?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Geological+Congress%2C+Abstracts--Congres+Geologique+Internationale%2C+Resumes&rft.atitle=Postglacial+climate+changes+and+the+occurrence+of+regional+erosion+surfaces%2C+Midwest%2C+USA&rft.au=Olson%2C+Carolyn+G%3BAnonymous&rft.aulast=Olson&rft.aufirst=Carolyn&rft.date=1992-01-01&rft.volume=29&rft.issue=&rft.spage=387&rft.isbn=&rft.btitle=&rft.title=International+Geological+Congress%2C+Abstracts--Congres+Geologique+Internationale%2C+Resumes&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 29th international geological congress N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from PASCAL, Institute de l'Information Scientifique et Technique, Vandoeuvre-les-Nancy, France N1 - Date revised - 1997-01-01 N1 - Number of references - 2 N1 - Last updated - 2012-06-07 N1 - CODEN - IGABBY N1 - SubjectsTermNotLitGenreText - Cenozoic; clastic sediments; erosion features; erosion surfaces; Holocene; Illinoian; Illinois; Indiana; Iowa; loess; Midwest; paleoclimatology; Pleistocene; postglacial environment; Quaternary; sediments; till; United States; upper Pleistocene; upper Wisconsinan; Wisconsinan ER - TY - JOUR T1 - Twelve years of abandoned mineland reclamation activities by the United States Department of Agriculture-Soil Conservation Service in Southwest Pennsylvania AN - 51055291; 1996-080190 JF - ASAE Publication AU - Bogovich, Wayne M AU - Younos, T AU - Diplas, P AU - Mostaghimi, S Y1 - 1992 PY - 1992 DA - 1992 SP - 230 EP - 239 PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 14-92 SN - 0197-1662, 0197-1662 KW - United States KW - organic residues KW - reclamation KW - government agencies KW - coal fields KW - U. S. Department of Agriculture KW - remediation KW - sedimentary rocks KW - coal KW - mobility KW - abandoned mines KW - soils KW - programs KW - mines KW - toxic materials KW - acid mine drainage KW - pollutants KW - drainage KW - surface water KW - pollution KW - preventive measures KW - southwestern Pennsylvania KW - Pennsylvania KW - tailings KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51055291?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASAE+Publication&rft.atitle=Twelve+years+of+abandoned+mineland+reclamation+activities+by+the+United+States+Department+of+Agriculture-Soil+Conservation+Service+in+Southwest+Pennsylvania&rft.au=Bogovich%2C+Wayne+M%3BYounos%2C+T%3BDiplas%2C+P%3BMostaghimi%2C+S&rft.aulast=Bogovich&rft.aufirst=Wayne&rft.date=1992-01-01&rft.volume=14-92&rft.issue=&rft.spage=230&rft.isbn=0929355377&rft.btitle=&rft.title=ASAE+Publication&rft.issn=01971662&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - International symposium on Land reclamation; advances in research & technology N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 6 N1 - PubXState - MI N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - abandoned mines; acid mine drainage; coal; coal fields; drainage; government agencies; land use; mines; mobility; organic residues; Pennsylvania; pollutants; pollution; preventive measures; programs; reclamation; remediation; sedimentary rocks; soils; southwestern Pennsylvania; surface water; tailings; toxic materials; U. S. Department of Agriculture; United States ER - TY - JOUR T1 - Using USDA Soil Conservation Service county soils data with a geographic information system AN - 50977970; 1993-011694 JF - ASTM Special Technical Publication. STP AU - Franchek, Richard J AU - Biggam, Peter F A2 - Johnson, A. I. A2 - Pettersson, C. B. A2 - Fulton, J. L. Y1 - 1992 PY - 1992 DA - 1992 SP - 115 EP - 121 PB - American Society for Testing and Materials, Philadelphia, PA VL - 1126 SN - 0066-0558, 0066-0558 KW - standards KW - soils KW - geographic information systems KW - cartography KW - information systems KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50977970?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=Using+USDA+Soil+Conservation+Service+county+soils+data+with+a+geographic+information+system&rft.au=Franchek%2C+Richard+J%3BBiggam%2C+Peter+F&rft.aulast=Franchek&rft.aufirst=Richard&rft.date=1992-01-01&rft.volume=1126&rft.issue=&rft.spage=115&rft.isbn=&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 3 N1 - PubXState - PA N1 - Document feature - geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - cartography; geographic information systems; information systems; soils; standards ER - TY - JOUR T1 - A user-friendly, contaminant transport software package for the preliminary assessment of soil and groundwater contamination; an overview of TETrans AN - 50963661; 1995-004723 JF - ASTM Special Technical Publication. STP AU - Corwin, Dennis L A2 - Hoddinott, Keith B. Y1 - 1992 PY - 1992 DA - 1992 SP - 65 EP - 80 PB - American Society for Testing and Materials, Philadelphia, PA VL - 1158 SN - 0066-0558, 0066-0558 KW - soils KW - experimental studies KW - solutions KW - pollutants KW - data processing KW - unsaturated zone KW - pollution KW - adsorption KW - vegetation KW - TETrans KW - ground water KW - models KW - computer programs KW - transport KW - mass balance KW - boron KW - trace elements KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50963661?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=A+user-friendly%2C+contaminant+transport+software+package+for+the+preliminary+assessment+of+soil+and+groundwater+contamination%3B+an+overview+of+TETrans&rft.au=Corwin%2C+Dennis+L&rft.aulast=Corwin&rft.aufirst=Dennis&rft.date=1992-01-01&rft.volume=1158&rft.issue=&rft.spage=65&rft.isbn=&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Superfund risk assessment in soil contamination studies N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 37 N1 - PubXState - PA N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - adsorption; boron; computer programs; data processing; experimental studies; ground water; mass balance; models; pollutants; pollution; soils; solutions; TETrans; trace elements; transport; unsaturated zone; vegetation ER - TY - JOUR T1 - Production of erosion control stone AN - 50961042; 1995-039330 JF - ASTM Special Technical Publication. STP AU - Schauberger, Herman AU - Arrand, Colin O D AU - Major, Jeffrey D A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 113 EP - 121 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - size distribution KW - blasting KW - erosion control KW - durability KW - quarries KW - production KW - rock mechanics KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50961042?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=Production+of+erosion+control+stone&rft.au=Schauberger%2C+Herman%3BArrand%2C+Colin+O+D%3BMajor%2C+Jeffrey+D&rft.aulast=Schauberger&rft.aufirst=Herman&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=113&rft.isbn=0803114893&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - PA N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - blasting; durability; erosion control; production; quarries; rock mechanics; size distribution ER - TY - JOUR T1 - Proposed standard for sizes of stone for erosion control AN - 50960718; 1995-039331 JF - ASTM Special Technical Publication. STP AU - Marek, Charles R A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 122 EP - 130 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - riprap KW - standard rocks KW - erosion KW - erosion control KW - soil erosion KW - rock mechanics KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50960718?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=Proposed+standard+for+sizes+of+stone+for+erosion+control&rft.au=Marek%2C+Charles+R&rft.aulast=Marek&rft.aufirst=Charles&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=122&rft.isbn=0803114893&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 6 N1 - PubXState - PA N1 - Document feature - 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - erosion; erosion control; riprap; rock mechanics; soil erosion; standard rocks ER - TY - JOUR T1 - Riprap quality criteria in standard specifications and engineering guidance AN - 50959906; 1995-039332 JF - ASTM Special Technical Publication. STP AU - Lutton, Richard J AU - Wong, G Sam A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 131 EP - 140 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - riprap KW - absorption KW - frost action KW - erosion control KW - durability KW - abrasion KW - testing KW - rock mechanics KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50959906?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=Riprap+quality+criteria+in+standard+specifications+and+engineering+guidance&rft.au=Lutton%2C+Richard+J%3BWong%2C+G+Sam&rft.aulast=Lutton&rft.aufirst=Richard&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=131&rft.isbn=0803114893&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 9 N1 - PubXState - PA N1 - Document feature - 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - abrasion; absorption; durability; erosion control; frost action; riprap; rock mechanics; testing ER - TY - JOUR T1 - The mechanism of freeze-thaw deterioration of rock in the Great Lakes region AN - 50959849; 1995-039327 JF - ASTM Special Technical Publication. STP AU - Lienhart, David A A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 77 EP - 87 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - North America KW - degradation KW - Great Lakes region KW - frost action KW - durability KW - elastic constants KW - heterogeneity KW - porosity KW - permeability KW - Young's modulus KW - rock mechanics KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50959849?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=The+mechanism+of+freeze-thaw+deterioration+of+rock+in+the+Great+Lakes+region&rft.au=Lienhart%2C+David+A&rft.aulast=Lienhart&rft.aufirst=David&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=77&rft.isbn=0803114893&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 14 N1 - PubXState - PA N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - degradation; durability; elastic constants; frost action; Great Lakes region; heterogeneity; North America; permeability; porosity; rock mechanics; Young's modulus ER - TY - JOUR T1 - Evaluation of limestone and dolomite armor stone durability from observations in the Great Lakes region AN - 50959808; 1995-039328 JF - ASTM Special Technical Publication. STP AU - Erickson, Ronald L A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 88 EP - 93 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - North America KW - Great Lakes region KW - erosion KW - durability KW - stress KW - weathering KW - porosity KW - rock mechanics KW - observations KW - laboratory studies KW - engineering geology KW - testing KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50959808?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=Evaluation+of+limestone+and+dolomite+armor+stone+durability+from+observations+in+the+Great+Lakes+region&rft.au=Erickson%2C+Ronald+L&rft.aulast=Erickson&rft.aufirst=Ronald&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=88&rft.isbn=0803114893&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - PA N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - durability; engineering geology; erosion; Great Lakes region; laboratory studies; North America; observations; porosity; rock mechanics; stress; testing; weathering ER - TY - JOUR T1 - Fractals, pore potential, and Sphinx limestone durability AN - 50959779; 1995-039323 JF - ASTM Special Technical Publication. STP AU - Yerrapragada, Srinivas S AU - Tambe, Sanjeev S AU - Gauri, K L A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 38 EP - 45 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - limestone KW - archaeology KW - North Africa KW - durability KW - weathering KW - porosity KW - Sphinx KW - rock mechanics KW - measurement KW - Egypt KW - engineering geology KW - sedimentary rocks KW - biomicrite KW - Africa KW - carbonate rocks KW - fractals KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50959779?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=Fractals%2C+pore+potential%2C+and+Sphinx+limestone+durability&rft.au=Yerrapragada%2C+Srinivas+S%3BTambe%2C+Sanjeev+S%3BGauri%2C+K+L&rft.aulast=Yerrapragada&rft.aufirst=Srinivas&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=38&rft.isbn=0803114893&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 13 N1 - PubXState - PA N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - Africa; archaeology; biomicrite; carbonate rocks; durability; Egypt; engineering geology; fractals; limestone; measurement; North Africa; porosity; rock mechanics; sedimentary rocks; Sphinx; weathering ER - TY - JOUR T1 - Verification of rock durability evaluation procedures using petroglyphs and Indian rock art AN - 50959236; 1995-039322 JF - ASTM Special Technical Publication. STP AU - Johnson, Terry L AU - Abt, Steven R AU - Fliegel, Myron H A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 29 EP - 37 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - riprap KW - physical properties KW - archaeology KW - erosion control KW - durability KW - petroglyphs KW - art KW - Indian rock art KW - testing KW - rock mechanics KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50959236?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=Verification+of+rock+durability+evaluation+procedures+using+petroglyphs+and+Indian+rock+art&rft.au=Johnson%2C+Terry+L%3BAbt%2C+Steven+R%3BFliegel%2C+Myron+H&rft.aulast=Johnson&rft.aufirst=Terry&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=29&rft.isbn=0803114893&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 7 N1 - PubXState - PA N1 - Document feature - 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - archaeology; art; durability; erosion control; Indian rock art; petroglyphs; physical properties; riprap; rock mechanics; testing ER - TY - JOUR T1 - Durability and specification conformance testing of rock used for erosion control AN - 50959216; 1995-039319 JF - ASTM Special Technical Publication. STP A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 140 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - engineering geology KW - symposia KW - erosion control KW - rock mechanics KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50959216?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=Durability+and+specification+conformance+testing+of+rock+used+for+erosion+control&rft.au=&rft.aulast=&rft.aufirst=&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0803114893&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - PA N1 - Document feature - illus. incl. tables N1 - SuppNotes - Individual papers are cited separately N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - engineering geology; erosion control; rock mechanics; symposia ER - TY - JOUR T1 - The influence of fabric and composition on the durability of Appalachian shales AN - 50959133; 1995-039321 JF - ASTM Special Technical Publication. STP AU - Vallejo, Luis E AU - Welsh, Robert A, Jr AU - Lovell, C William AU - Robinson, Michael K A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 15 EP - 28 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - United States KW - North America KW - pressure KW - X-ray diffraction data KW - erosion KW - shale KW - durability KW - Appalachians KW - Eastern U.S. KW - rock mechanics KW - engineering geology KW - sedimentary rocks KW - pore pressure KW - fabric KW - clastic rocks KW - slabbing KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50959133?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=The+influence+of+fabric+and+composition+on+the+durability+of+Appalachian+shales&rft.au=Vallejo%2C+Luis+E%3BWelsh%2C+Robert+A%2C+Jr%3BLovell%2C+C+William%3BRobinson%2C+Michael+K&rft.aulast=Vallejo&rft.aufirst=Luis&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=15&rft.isbn=0803114893&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 15 N1 - PubXState - PA N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - Appalachians; clastic rocks; durability; Eastern U.S.; engineering geology; erosion; fabric; North America; pore pressure; pressure; rock mechanics; sedimentary rocks; shale; slabbing; United States; X-ray diffraction data ER - TY - JOUR T1 - Petrographic examination of large stone durability AN - 50958540; 1995-039329 JF - ASTM Special Technical Publication. STP AU - Wong, G S AU - Lutton, R J A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 94 EP - 109 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - riprap KW - X-ray diffraction data KW - frost action KW - durability KW - petrography KW - rock mechanics KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50958540?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=Petrographic+examination+of+large+stone+durability&rft.au=Wong%2C+G+S%3BLutton%2C+R+J&rft.aulast=Wong&rft.aufirst=G&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=94&rft.isbn=0803114893&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 4 N1 - PubXState - PA N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - durability; frost action; petrography; riprap; rock mechanics; X-ray diffraction data ER - TY - JOUR T1 - Insoluble residue of carbonate rock and its applications to the durability assessment of rock riprap AN - 50957668; 1995-039325 JF - ASTM Special Technical Publication. STP AU - Fisher, Henry H A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 62 EP - 68 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - United States KW - Monroe County Ohio KW - Pennsylvanian KW - Paleozoic KW - durability KW - Noble County Ohio KW - Carboniferous KW - Permian KW - rock mechanics KW - measurement KW - riprap KW - sedimentary rocks KW - insoluble residues KW - applications KW - carbonate rocks KW - southeastern Ohio KW - Ohio KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50957668?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=Insoluble+residue+of+carbonate+rock+and+its+applications+to+the+durability+assessment+of+rock+riprap&rft.au=Fisher%2C+Henry+H&rft.aulast=Fisher&rft.aufirst=Henry&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=62&rft.isbn=0803114893&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 7 N1 - PubXState - PA N1 - Document feature - 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - applications; carbonate rocks; Carboniferous; durability; insoluble residues; measurement; Monroe County Ohio; Noble County Ohio; Ohio; Paleozoic; Pennsylvanian; Permian; riprap; rock mechanics; sedimentary rocks; southeastern Ohio; United States ER - TY - JOUR T1 - A mill abrasion test for wear resistance of armour stone AN - 50957527; 1995-039324 JF - ASTM Special Technical Publication. STP AU - Latham, John-Paul A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 46 EP - 61 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - strength KW - durability KW - abrasion KW - testing KW - fabric KW - rock mechanics KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50957527?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=A+mill+abrasion+test+for+wear+resistance+of+armour+stone&rft.au=Latham%2C+John-Paul&rft.aulast=Latham&rft.aufirst=John-Paul&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=46&rft.isbn=0803114893&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 13 N1 - PubXState - PA N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - abrasion; durability; fabric; rock mechanics; strength; testing ER - TY - JOUR T1 - Bureau of Reclamation experience in testing of riprap for erosion control of embankment dams AN - 50957496; 1995-039320 JF - ASTM Special Technical Publication. STP AU - Farrar, J A A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 3 EP - 14 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - United States KW - embankments KW - rockfill dams KW - reservoirs KW - U. S. Bureau of Reclamation KW - exploration KW - riprap KW - engineering geology KW - controls KW - physical properties KW - Western U.S. KW - erosion control KW - dams KW - design KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50957496?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=Bureau+of+Reclamation+experience+in+testing+of+riprap+for+erosion+control+of+embankment+dams&rft.au=Farrar%2C+J+A&rft.aulast=Farrar&rft.aufirst=J&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=3&rft.isbn=0803114893&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 15 N1 - PubXState - PA N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - controls; dams; design; embankments; engineering geology; erosion control; exploration; physical properties; reservoirs; riprap; rockfill dams; U. S. Bureau of Reclamation; United States; Western U.S. ER - TY - JOUR T1 - Environmental testing of rock used as erosion protection in arid environments AN - 50956930; 1995-039326 JF - ASTM Special Technical Publication. STP AU - Duffy, Dennis M AU - Hatzell, Hilda H A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 69 EP - 76 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - United States KW - engineering geology KW - terrestrial environment KW - erosion control KW - durability KW - arid environment KW - Arizona KW - testing KW - diurnal variations KW - rock mechanics KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50956930?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=Environmental+testing+of+rock+used+as+erosion+protection+in+arid+environments&rft.au=Duffy%2C+Dennis+M%3BHatzell%2C+Hilda+H&rft.aulast=Duffy&rft.aufirst=Dennis&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=69&rft.isbn=0803114893&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 3 N1 - PubXState - PA N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - arid environment; Arizona; diurnal variations; durability; engineering geology; erosion control; rock mechanics; terrestrial environment; testing; United States ER - TY - JOUR T1 - Our agricultural landscape; improving image preservation and end-user image access through laser disk technology AN - 50380114; 1993-002370 JF - Abstracts with Programs - Geological Society of America AU - Fusonie, Alan AU - Young, Ronald AU - Myers, Richard AU - Anonymous Y1 - 1992 PY - 1992 DA - 1992 SP - 167 PB - Geological Society of America (GSA), Boulder, CO VL - 24 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - data processing KW - agriculture KW - laser disks KW - landscapes KW - preservation KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50380114?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Our+agricultural+landscape%3B+improving+image+preservation+and+end-user+image+access+through+laser+disk+technology&rft.au=Fusonie%2C+Alan%3BYoung%2C+Ronald%3BMyers%2C+Richard%3BAnonymous&rft.aulast=Fusonie&rft.aufirst=Alan&rft.date=1992-01-01&rft.volume=24&rft.issue=7&rft.spage=167&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1992 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - agriculture; data processing; landscapes; laser disks; preservation; United States ER - TY - JOUR T1 - Effect of logging on subsurface pipeflow and erosion; coastal Northern California, USA AN - 50315660; 1993-035793 JF - IAHS-AISH Publication AU - Ziemer, R R A2 - Walling, D. E. A2 - Davies, T. R. A2 - Hasholt, B. Y1 - 1992 PY - 1992 DA - 1992 SP - 187 EP - 197 PB - International Association of Hydrological Sciences, [Louvain] VL - 209 SN - 0144-7815, 0144-7815 KW - United States KW - California KW - pressure KW - sediment transport KW - erosion KW - pore pressure KW - drainage basins KW - suspended materials KW - Northern California KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50315660?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=IAHS-AISH+Publication&rft.atitle=Effect+of+logging+on+subsurface+pipeflow+and+erosion%3B+coastal+Northern+California%2C+USA&rft.au=Ziemer%2C+R+R&rft.aulast=Ziemer&rft.aufirst=R&rft.date=1992-01-01&rft.volume=209&rft.issue=&rft.spage=187&rft.isbn=&rft.btitle=&rft.title=IAHS-AISH+Publication&rft.issn=01447815&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - International symposium on Erosion, debris flows and environment in mountain regions N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 21 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - PIHSD9 N1 - SubjectsTermNotLitGenreText - California; drainage basins; erosion; Northern California; pore pressure; pressure; sediment transport; suspended materials; United States ER - TY - JOUR T1 - Developing a floodplain sand and gravel mine reclamation program in the Amite River basin of Louisiana AN - 50216033; 1994-046690 JF - ASAE Publication AU - Vernon, Robert D AU - Autin, Whitney J AU - Mossa, Joann A2 - Younos, Tamim A2 - Diplas, P. A2 - Mostaghimi, S. Y1 - 1992 PY - 1992 DA - 1992 SP - 240 EP - 245 PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 14-92 SN - 0197-1662, 0197-1662 KW - United States KW - floodplains KW - reclamation KW - Denham Springs Louisiana KW - Gulf Coastal Plain KW - sands KW - gravel deposits KW - hydrographs KW - fluvial features KW - environmental geology KW - Louisiana KW - Amite River KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50216033?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASAE+Publication&rft.atitle=Developing+a+floodplain+sand+and+gravel+mine+reclamation+program+in+the+Amite+River+basin+of+Louisiana&rft.au=Vernon%2C+Robert+D%3BAutin%2C+Whitney+J%3BMossa%2C+Joann&rft.aulast=Vernon&rft.aufirst=Robert&rft.date=1992-01-01&rft.volume=14-92&rft.issue=&rft.spage=240&rft.isbn=&rft.btitle=&rft.title=ASAE+Publication&rft.issn=01971662&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Proceedings of the International symposium N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 4 N1 - PubXState - MI N1 - Document feature - 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Amite River; Denham Springs Louisiana; environmental geology; floodplains; fluvial features; gravel deposits; Gulf Coastal Plain; hydrographs; Louisiana; reclamation; sands; United States ER - TY - JOUR T1 - Estimating flood damage to vegetated deep soil spillways AN - 25898871; 2001-33-001647 (CE); 0126589 (EN) AB - Although design guides are available, there is presently no procedure available for predicting damage and/or failure of a vegetated earth spillway subjected to flood flow conditions. The limited data available for vegetated spillways constructed in deep soil deposits are examined and shown to have sufficient consistency to allow calibration of simplified relations for use in damage estimation for spillways having similar geologic and hydraulic conditions. The nature of the data and the assumptions underlying these simplifications are discussed. Application of the relations with appropriate engineering judgment provides a means of damage and/or failure prediction until more analytic procedures become available. JF - APPL ENG AGRIC AU - Temple, D M AD - USDA-Agricultural Research Service, Stillwater, OK, USA PY - 1992 SP - 237 EP - 242 PB - American Society of Agricultural Engineers, 2950 Niles Road, St. Joseph, MI, 49085-9659, USA, [mailto:hq@asae.org], [URL:http://www.asae.org] VL - 8 IS - 2 SN - 0883-8542, 0883-8542 KW - Civil Engineering (CE); Environmental Engineering (EN) KW - Spillways KW - Damage KW - Floods KW - Failure KW - Hydraulics KW - Construction KW - Deposits KW - Geology KW - Calibration KW - Article KW - EE 632:HYDRAULICS, PNEUMATICS AND RELATED EQUIPMENT KW - EE 405:CONSTRUCTION AND EQUIPMENT AND METHODS (EN) KW - EE 483:SOIL MECHANICS AND FOUNDATIONS KW - EE 442:FLOOD CONTROL KW - EE 441:DAMS AND RESERVOIRS UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/25898871?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=APPL+ENG+AGRIC&rft.atitle=Estimating+flood+damage+to+vegetated+deep+soil+spillways&rft.au=Temple%2C+D+M&rft.aulast=Temple&rft.aufirst=D&rft.date=1992-01-01&rft.volume=8&rft.issue=2&rft.spage=237&rft.isbn=&rft.btitle=&rft.title=APPL+ENG+AGRIC&rft.issn=08838542&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 ER - TY - JOUR T1 - Real-time irrigation scheduling of cotton with an automated pan evaporation system. AN - 25845507; 0036849 (EN); 0036849 (CI) AB - High frequency irrigation control necessitates real-time monitoring of soil water, plant water status or atmospheric evaporative demand. The research objective was to determine the suitability of real-time control of subsurface drip irrigation using automated evaporation pan measurements. Hourly electronic measurement of water loss from an evaporation pan was a critical feedback control element in the irrigation scheduling of a high frequency subsurface drip system (SDI) used to irrigate cotton. The water level in the class 'A' pan was monitored continuously using a micrologger to measure the output of the electronic water level sensor. The crop water needs were calculated by multiplying the evaporation from the pan by a pan and crop coefficient. When the calculated water need was equal to or greater than 2 mm (0.08 in.) in 1990 and 1 mm (0.04 in.) in 1991, the micrologger automatically activated the irrigation system. Data were automatically transmitted daily to the station computer via telephone. Water was added each night to the pan automatically to refill the pan to a constant level. After installation and testing, the control system worked automatically without manual intervention for two growing seasons. JF - Applied Engineering in Agriculture AU - Phene, C J AU - DeTar, W R AU - Clark, DA AD - USDA-Agricultural Research Service-WMRL, Fresno, CA, USA PY - 1992 SP - 787 EP - 793 PB - American Society of Agricultural Engineers, 2950 Niles Road, St. Joseph, MI, 49085-9659, USA, [mailto:hq@asae.org], [URL:http://www.asae.org] VL - 8 IS - 6 SN - 0883-8542, 0883-8542 KW - Environmental Engineering (EN); Computer & Information Systems (CI) KW - Scheduling KW - Cotton KW - Evaporation KW - Equipment KW - Measurements KW - Automation KW - Control systems KW - Article KW - EE 723.5:COMPUTER APPLICATIONS (EN) KW - EE 821.3:Agricultural Methods KW - EE 821.3:AGRICULTURAL METHODS KW - EE 723.5:Computer Applications (CI) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/25845507?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Infestation+and+dispersal+of+Noctuidonema+guyanense+%28Nematoda%3A+Aphelenchoididae%29+on+Spodoptera+frugiperda+%28Lepidoptera%3A+Noctuidae%29.&rft.au=Rogers%2C+CE%3BMarti%2C+OG+Jr&rft.aulast=Rogers&rft.aufirst=CE&rft.date=1992-01-01&rft.volume=21&rft.issue=2&rft.spage=417&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 ER - TY - JOUR T1 - Knowledge-based system for environmental design of stream modifications. AN - 25683067; 2001-33-001633 (CE); 0005861 (EN) AB - A knowledge-based, microcomputer software package was developed for preliminary selection of environmental features for use with streambank protection projects, straightened and enlarged channels, and flood control levees. The system contains a module for each of the three major alteration types: bank protection, levees, and channels. Each module queries the user for information regarding environmental factors to be protected and a description of the project setting, with the internal logic configured to minimize the number of questions asked. System output consists of a list of environmental design features suitable for the specific location and descriptive information. Help screens explain why certain questions are asked, define terms, and suggest responses or sources of information. At the conclusion of a consultation, additional help screens may be displayed that provide a discussion of each recommended feature, a list of existing projects that incorporate the feature, and a bibliography. The streambank protection module screens a master list of 20 methods based on the dominant erosion mechanisms operative at the project site, and the channel module performs a rough channel stability assessment using regime equations. The latest version of the software aids in feature selection, but does not design channel alterations. However, the software interfaces with routines that perform basic hydraulic computations (e.g., composite roughness, normal depth, riprap size) for steady flow in order to allow users to quickly evaluate feasibility of in-channel environmental features. A survey of users indicated that the package has been used by entry-level and experienced professionals to perform a limited range of specialized tasks. Seventy-four percent of the users described the software as a useful instrument for planning and preliminary design. JF - Applied Engineering in Agriculture AU - Shields, FD Jr AU - Aziz, N M AD - USDA-Natl Sedimentation Lab, Oxford, MS, USA PY - 1992 SP - 553 EP - 562 PB - American Society of Agricultural Engineers, 2950 Niles Road, St. Joseph, MI, 49085-9659, USA, [mailto:hq@asae.org], [URL:http://www.asae.org] VL - 8 IS - 4 SN - 0883-8542, 0883-8542 KW - Civil Engineering (CE); Environmental Engineering (EN) KW - Computer programs KW - Design engineering KW - Levees KW - Streambanks KW - Selection KW - Position (location) KW - Expansion KW - Hydraulics KW - Modification KW - Stability KW - Banks KW - Preliminary designs KW - Logic KW - Flood control KW - Mathematical analysis KW - Erosion mechanisms KW - Bibliographies KW - Output KW - Realizability KW - Article KW - EE 723.4.1:EXPERT SYSTEMS KW - EE 631.1:FLUID FLOW (GENERAL) (EN) KW - EE 442:FLOOD CONTROL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/25683067?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Engineering+in+Agriculture&rft.atitle=Knowledge-based+system+for+environmental+design+of+stream+modifications.&rft.au=Shields%2C+FD+Jr%3BAziz%2C+N+M&rft.aulast=Shields&rft.aufirst=FD&rft.date=1992-01-01&rft.volume=8&rft.issue=4&rft.spage=553&rft.isbn=&rft.btitle=&rft.title=Applied+Engineering+in+Agriculture&rft.issn=08838542&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 ER - TY - CONF T1 - Harvesting small trees and forest residues. AN - 25664610; 0037057 (EN); 0037057 (CI) AB - Eight countries collaborated and shared technical information on the harvesting of small trees and forest residues in a three year program. Proceedings and reports from workshops and reviews are summarized in a review of activities and harvesting systems of the participating countries. Four databases were developed for harvesting and transportation of these materials. JF - Biomass and Bioenergy AU - Stokes, Bryce J Y1 - 1992 PY - 1992 DA - 1992 SP - 131 EP - 147 VL - 2 IS - 1-6 KW - Environmental Engineering (EN); Computer & Information Systems (CI) KW - Harvesting KW - Database systems KW - Wood fuels KW - Renewable energy resources KW - Transportation KW - EE 821.4:AGRICULTURAL PRODUCTS (EN) KW - EE 525.1:Energy Resources KW - EE 723.3:Database Systems KW - EE 821.4:Agricultural Products KW - EE 811.2:Wood and Wood Products (CI) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/25664610?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Biomass+and+Bioenergy&rft.atitle=Harvesting+small+trees+and+forest+residues.&rft.au=Stokes%2C+Bryce+J&rft.aulast=Stokes&rft.aufirst=Bryce&rft.date=1992-01-01&rft.volume=2&rft.issue=1-6&rft.spage=131&rft.isbn=&rft.btitle=&rft.title=Biomass+and+Bioenergy&rft.issn=09619534&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 ER - TY - JOUR T1 - Comparison of Photography, Videography, and SPOT-1 HRV Digital Observations for Salinity Assessment in the San Joaquin Valley of California AN - 19245396; 9310653 AB - Information on the extent and severity of soil salinity is needed to engineer water-delivery and drainage improvements, and to monitor the effectiveness of reclamation efforts. Procedures to help meet these needs were developed from soil salinity, plant height and cover measurements, and digitized color/infrared photography, narrow-band videography, and Satellite Positioning and Tracking 1 (SPOT-1) high-resolution visible (HRV) scanner observations for four salt-affected cotton fields in the San Joaquin Valley (California). Unsupervised classification procedures were used to develop seven-category spectral maps by field. Regression equations were developed from the salinity measurements in the surface 30 cm and photographic spectral data at 100-200 sample sites per field for estimating the soil salinity throughout the field in that depth interval. These equations were applied to estimate the salinity of each of the approximately 100,000 pixels per field, and the salinity categories corresponding to the spectral ones were mapped. The spectral-classification maps and the estimated-salinity maps corresponded well, as documented by a coincidence-matrix analysis that determined the fraction of pixels classified the same in both approaches. The findings demonstrate that spectral observations which sense plant growth responses can help determine the occurrence and severity of soil salinity and argue for salinity surveys during the crop, rather than the fallow, season. Higher correlations were found for the photography than for the videography and HRV observations. The HRV sampling interval (20 m) was basically incompatible with the ground sampling pattern. However, any of the systems could be used to assess salinity or monitor reclamation. (See also W94-00972) (Author's abstract) JF - IN: Land Reclamation: Advances in Research & Technology. ASAE Publication 14-92. American Society of Agricultural Engineers, St. Joseph, Michigan. 1992. p 268-282. 3 fig, 7 tab, 22 ref. AU - Wiegand, CL AU - Rhoades, J D AU - Everitt, J H AU - Escobar, DE AD - USDA, ARS, Remote Sensing Research Unit, 2413 E. Highway 83, Weslaco, TX 78596-8344 Y1 - 1992 PY - 1992 DA - 1992 KW - Water Resources Abstracts KW - *Photography KW - *Remote sensing KW - *Saline soils KW - *San Joaquin Valley KW - *Satellite technology KW - *Soil surveys KW - *Videography KW - California KW - Drainage KW - Irrigation KW - Mapping KW - Regression analysis KW - Soil classification KW - Soil restoration KW - Spectral analysis KW - Vegetation KW - SW 1030:Use of water of impaired quality KW - SW 5040:Data acquisition KW - SW 0845:Water in soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19245396?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Development+of+the+phytophagous+arthropod+community+on+apple+as+affected+by+orchard+management.&rft.au=Brown%2C+M+W%3BWelker%2C+W+V&rft.aulast=Brown&rft.aufirst=M&rft.date=1992-01-01&rft.volume=21&rft.issue=3&rft.spage=485&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Wetland Restoration, Enhancement, or Creation: A New Chapter in the USDA-SCS Engineering Field Handbook AN - 19245028; 9310643 AB - The Soil Conservation Service (SCS) developed a new chapter for the SCS Field Handbook in response to a growing national emphasis on wetland restoration. The chapter grew out of a revision of the chapter on dikes, levees and wetland development. The chapter is considered to be a technical document written to provide field personnel with a guide to planning, design, implementation, maintenance, and monitoring of wetland restoration, creation, and enhancement projects. The wetland functions addressed in the chapter are: (1) education and research; (2) erosion control; (3) fish and shellfish production or habitat; (4) flood storage; (5) flood conveyance; (6) food production; (7) habitat for threatened and endangered species; (8) historic, cultural and archeological aspects; (9) open space and aesthetic quality; (10) recreation; (11) sediment control; (12) timber production; (13) water supply; (14) water quality improvement; and (15) wildlife habitat. Surface feature surveys should include: (1) a location sketch showing property boundaries, bench marks, permanent features, orientation, and wetland location; (2) profiles and cross sections describing typical or critical parameters of existing conditions; and (3) location and elevation of necessary soil borings. Major factors in the water budget of the wetland include: precipitation, storm water runoff, evaporation and transpiration, base surface flow, groundwater flow, pumped water, tidal flows, surface water storage, and pore-water storage. Vegetative considerations include: goals and objectives, water supply, nature and condition of the substrate, water depth, slope, length of the growing season, surrounding habitats and land uses, wind and wave energies, currents and velocities, and cost. (See also W94-00972) (Brunone-PTT) JF - IN: Land Reclamation: Advances in Research & Technology. ASAE Publication 14-92. American Society of Agricultural Engineers, St. Joseph, Michigan. 1992. p 170-175. 1 ref. AU - Boyd, W H AU - Gray, R L AD - Midwest National Technical Center, USDA Soil Conservation Service, Lincoln, Nebraska Y1 - 1992 PY - 1992 DA - 1992 KW - Water Resources Abstracts KW - *Department of Agriculture KW - *Environmental protection KW - *Handbooks KW - *Soil Conservation Service KW - *Wetland creation KW - *Wetland enhancement KW - *Wetland restoration KW - Aquatic plants KW - Erosion control KW - Hydrologic budget KW - Sediment control KW - Surveys KW - Water supply KW - Wildlife habitats KW - SW 3070:Water quality control KW - SW 4050:Water law and institutions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19245028?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Wetland+Restoration%2C+Enhancement%2C+or+Creation%3A+A+New+Chapter+in+the+USDA-SCS+Engineering+Field+Handbook&rft.au=Boyd%2C+W+H%3BGray%2C+R+L&rft.aulast=Boyd&rft.aufirst=W&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Twelve Years of Abandoned Mineland Reclamation Activities by the United States Department of Agriculture-Soil Conservation Service in Southwest Pennsylvania AN - 19244767; 9310649 AB - One-sixth of all abandoned coal-mine land in the United States is in the twelve southwestern counties of Pennsylvania. The Surface Mining Control Act of 1977 established several programs to reclaim abandoned coal mine land, one of which is the Rural Abandoned Mine Program. Sites reclaimed to date have all been Priority I sites, defined as those which present an imminent danger to life and property. 136 sites totalling 1137 acres (460 ha) have been reclaimed in the twelve counties over the last 12 years. One of the biggest problems associated with black gob piles is their potential toxicity to vegetation. A soil covering has been used on two of the 136 sites. Black locust and arnot bristly locust have been propagated on sites from seed during the vegetation phase of reclamation. During construction, both temporary and permanent measures for the control of erosion and sedimentation are installed, including: straw-bale barriers, filter-fabric fence, sediment basins and rock filter dams. Before reconstruction, many of the sites had high rates of sediment leaving the site. Surface-water control practices are used to stabilize the soil material and reduce the amount of gully erosion; examples are diversions, vegetated waterways, and rock-lined waterways. Mine openings and air shafts may discharge water and poorly-oxygenated air, and 183 openings have been closed to prevent access. Wetlands have been constructed on 11 sites to mitigate acid mine drainage. The average total cost of reclamation is approximately 9500 dollars per acre. (See also W94-00972) (Brunone-PTT) JF - IN: Land Reclamation: Advances in Research & Technology. ASAE Publication 14-92. American Society of Agricultural Engineers, St. Joseph, Michigan. 1992. p 230-239. 10 fig, 6 ref. AU - Bogovich, WM AD - Area III, USDA-SCS, Somerset Area Office, Somerset, Pennsylvania Y1 - 1992 PY - 1992 DA - 1992 KW - Water Resources Abstracts KW - *Coal mining effects KW - *Department of Agriculture KW - *Environmental restoration KW - *Land reclamation KW - *Mining KW - *Pennsylvania KW - *Soil Conservation Service KW - Acid mine drainage KW - Costs KW - Erosion control KW - Hazards KW - Legislation KW - Sediment control KW - Soil stabilization KW - Strip mines KW - Surface Mining Control Act KW - Toxicity KW - Vegetation establishment KW - Waste capping KW - Wetland construction KW - SW 3070:Water quality control KW - SW 2080:Watershed protection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19244767?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Twelve+Years+of+Abandoned+Mineland+Reclamation+Activities+by+the+United+States+Department+of+Agriculture-Soil+Conservation+Service+in+Southwest+Pennsylvania&rft.au=Bogovich%2C+WM&rft.aulast=Bogovich&rft.aufirst=WM&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Using USDA Soil Conservation Service County Soils Data with a Geographic Information System AN - 19139066; 9303632 AB - A county level soil data set for use in geographic information systems is being developed by the US Department of Agriculture Soil Conservation Service. In addition, attribute information will be developed to provide information that is based on soil characteristics. Santa Rosa County, Florida soil survey was used as a sample data set to illustrate the use of the data. Interpretations on severe limitations for septic tank absorption fields and flooding frequency were developed for the county. This is a small sample of the types of information that are available. The main difficulties encountered in using the data are the size of the spatial and attribute information and the identification of needed information from the attribute tables. (See also W93-03621) (Author's abstract) JF - IN: Geographic Information Systems (GIS) and Mapping--Practices and Standards. STP 1126, 1992. American Society for Testing and Materials, Philadelphia, PA. p 115-121, 3 fig, 3 ref, append. AU - Franchek, R J AU - Biggam, P F AD - Soil Conservation Service, National Cartographic Center, PO Box 6567, Fort Worth, TX Y1 - 1992 PY - 1992 DA - 1992 KW - Water Resources Abstracts KW - *Data interpretation KW - *Digital map data KW - *Florida KW - *Geographic information systems KW - *Santa Rosa County KW - *Soil Conservation Service KW - *Soil properties KW - Data acquisition KW - Flood frequency KW - Septic tanks KW - Surveys KW - SW 0845:Water in soils KW - SW 5080:Evaluation, processing and publication UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19139066?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Using+USDA+Soil+Conservation+Service+County+Soils+Data+with+a+Geographic+Information+System&rft.au=Franchek%2C+R+J%3BBiggam%2C+P+F&rft.aulast=Franchek&rft.aufirst=R&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Susceptibility of porcine intestine to pilus-mediated adhesion by some isolates of piliated enterotoxigenic Escherichia coli increases with age AN - 16966426; 3619879 AB - Two porcine isolates of enterotoxigenic Escherichia coli (ETEC) (serogroup O157 and O141) derived from fatal cases of postweaning diarrhea and lacking K88, K99, F41, and 987P pili (4P super(-) ETEC) were tested for adhesiveness to small-intestinal epithelia of pigs of different ages. Neither strain adhered to isolated intestinal brush borders of newborn (1-day-old) pigs in the presence of mannose. However, mannose-resistant adhesion occurred when brush borders from 10-day- and 3- and 6-week-old pigs were used. Electron microscopy revealed that both strains produced fine (3.5-nm) and type 1 pili at 37 degree C but only type 1 pili at 18 degree C. Mannose-resistant in vitro adhesion to brush borders of older pigs correlated with the presence of fine pili. These strains produced predominantly fine pili in ligated intestinal loops of both older and newborn pigs, but adherence was greater in loops in older pigs. Immunoelectron microscopic studies, using antiserum raised against piliated bacteria and absorbed with nonpiliated bacteria, of samples from brush border adherence studies revealed labelled appendages between adherent bacteria and intestinal microvilli. Orogastric inoculation of pigs weaned at 10 and 21 days of age indicated significantly higher levels of adhesion by the ETEC to the ileal epithelia of older pigs than to that of younger ones. We suggest that small-intestinal adhesion and colonization by these ETEC isolates is dependent on receptors that develop progressively with age during the first 3 weeks after birth. Furthermore, our data are consistent with the hypothesis that the fine pili described mediate intestinal adhesion by the 4P super(-) ETEC strains studied. JF - Infection and Immunity AU - Nagy, B AU - Casey, T A AU - Whipp, S C AU - Moon, H W AD - Physiopathol. Res. Unit, Natl. Anim. Dis. Cent., USDA Agric. Res. Serv., Ames, IA 50010, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1258 EP - 1294 VL - 60 IS - 4 SN - 0019-9567, 0019-9567 KW - pigs KW - Microbiology Abstracts B: Bacteriology KW - diarrhea KW - Escherichia coli KW - role KW - cell adhesion KW - electron microscopy KW - pili KW - brush border membranes KW - J 02862:Infection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16966426?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Infection+and+Immunity&rft.atitle=Susceptibility+of+porcine+intestine+to+pilus-mediated+adhesion+by+some+isolates+of+piliated+enterotoxigenic+Escherichia+coli+increases+with+age&rft.au=Nagy%2C+B%3BCasey%2C+T+A%3BWhipp%2C+S+C%3BMoon%2C+H+W&rft.aulast=Nagy&rft.aufirst=B&rft.date=1992-01-01&rft.volume=60&rft.issue=4&rft.spage=1258&rft.isbn=&rft.btitle=&rft.title=Infection+and+Immunity&rft.issn=00199567&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Escherichia coli; brush border membranes; cell adhesion; pili; role; diarrhea; electron microscopy ER - TY - JOUR T1 - Surface proteins of two aflatoxin-producing isolates of Aspergillus flavus and Aspergillus parasiticus mycelia. 1. A comparative immunochemical profile AN - 16950021; 3615950 AB - The surface antigens from Aspergillus flavus and Aspergillus parasiticus mycelia were characterized by immunochemical analysis on agarose gels. Results of immunoabsorption experiments showed that at least two antigens present in A. flavus were not detected in A. parasiticus. Semiquantitative and qualitative assays by line and crossed immunoelectrophoresis showed extreme heterogeneity in precipitin formation between the two fungi. A major antigen in A. parasiticus appeared in trace amounts in A. flavus; that antigen might be useful as a chemical marker in species identification studies. The avidity of antibody responses varied between the two isolates but the homology of the profiles support their close phylogenetic relationship as members of the same genus. JF - Journal of Agricultural and Food Chemistry AU - Neucere, J N AU - Ullah, AHJ AU - Cleveland, TE AD - South. Reg. Res. Cent., ARS-USDA, P.O. Box 19687, New Orleans, LA 70179, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1610 EP - 1612 VL - 40 IS - 9 SN - 0021-8561, 0021-8561 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Aspergillus flavus KW - cell surface KW - proteins KW - Aspergillus parasiticus KW - A 01002:Acids, amino acids, peptides & proteins KW - K 03025:Fungi UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16950021?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Agricultural+and+Food+Chemistry&rft.atitle=Surface+proteins+of+two+aflatoxin-producing+isolates+of+Aspergillus+flavus+and+Aspergillus+parasiticus+mycelia.+1.+A+comparative+immunochemical+profile&rft.au=Neucere%2C+J+N%3BUllah%2C+AHJ%3BCleveland%2C+TE&rft.aulast=Neucere&rft.aufirst=J&rft.date=1992-01-01&rft.volume=40&rft.issue=9&rft.spage=1610&rft.isbn=&rft.btitle=&rft.title=Journal+of+Agricultural+and+Food+Chemistry&rft.issn=00218561&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aspergillus flavus; Aspergillus parasiticus; cell surface; proteins ER - TY - JOUR T1 - Cutinase production by Streptomyces spp. AN - 16945749; 3617794 AB - Forty-five Streptomyces strains, including representatives of the plant pathogens S. acidiscabies, S. scabies, and S. ipomoea, were screened for ability to produce enzymes (cutinases) capable of hydrolyzing the insoluble plant biopolyester cutin. Initially, all strains were tested for production of extracellular esterase in liquid shake (250 rpm) cultures at room temperature in defined (glycerol-asparagine) or complex (tryptone-yeast extract with or without addition of mannitol) broth media supplemented with either tomato or apple cutin. Esterase activity was determined by a spectrophotometric assay utilizing the model substrate p-nitrophenyl butyrate. Of the five strains exhibiting highest esterase activity, four (S. acidiscabies ATCC 49003, S. "scabies" ATCC 15485 and IMRU 3018, and S. badius ATCC 19888) were confirmed to produce enzymes with cutin-degrading activity (cutinases). Confirmation of extracellular cutinase production was accomplished by use of a new high-performance liquid chromatography method for separation and quantification of released cutin monomers. Monomer identification was confirmed by GC/MS analyses. Cutinase production was induced 2- to 17-fold by inclusion of cutin in the media. To our knowledge this constitutes the first report of cutinase production by Streptomyces spp. other than S. scabies. JF - Current Microbiology AU - Fett, W F AU - Gerard, H C AU - Moreau, R A AU - Osman, S F AU - Jones, LE AD - USDA-ARS-ERRC, Plant Sci. Res. Unit, 600 E. Mermaid Ln., Philadelphia, PA 19118, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 165 EP - 171 VL - 25 IS - 3 SN - 0343-8651, 0343-8651 KW - cutin KW - cutinase KW - effects on KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - Streptomyces KW - extracellular enzymes KW - production KW - A 01006:Enzymes & cofactors KW - J 02728:Enzymes KW - W2 32310:Enzymes and cofactors KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16945749?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Current+Microbiology&rft.atitle=Cutinase+production+by+Streptomyces+spp.&rft.au=Fett%2C+W+F%3BGerard%2C+H+C%3BMoreau%2C+R+A%3BOsman%2C+S+F%3BJones%2C+LE&rft.aulast=Fett&rft.aufirst=W&rft.date=1992-01-01&rft.volume=25&rft.issue=3&rft.spage=165&rft.isbn=&rft.btitle=&rft.title=Current+Microbiology&rft.issn=03438651&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - extracellular enzymes; production; Streptomyces ER - TY - JOUR T1 - When it's hot, it's hot... or maybe it's not! (Surface flaming may not portend extensive soil heating) AN - 16872473; 3575257 AB - Fire effects on a plant community, soil, and air are not apparent when judged only by surface fire intensity. The fire severity or fire impact can be described by the temperatures reached within the forest floor and the duration of heating experienced in the vegetation, forest floor, and underlying mineral soil. Temporal distributions of temperatures illustrate heat flow in duff and mineral soil in three instrumented plots: two with slash fuel over moist duff and one with litter fuel over dry duff. Fires in the two slash fuel plots produced substantial flame lengths but minimal heating in the underlying mineral soil. In contrast, smoldering combustion in the dry duff plot produced long duration heating with nearly complete duff consumption and lethal temperatures at the mineral soil surface. Moisture content of duff and soil were key variables for determining fire impact on the forest floor. JF - International Journal of Wildland Fire AU - Hartford, R A AU - Frandsen, W H AD - USDA, For. Serv., Intermountain Res. Stn., Intermountain Fire Sci. Lab., P.O. Box 8089, Missoula, MT 59807, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 139 EP - 144 VL - 2 IS - 3 SN - 1049-8001, 1049-8001 KW - wildfire KW - temporal distributions KW - smoldering KW - Health & Safety Science Abstracts KW - vegetation KW - USA, Rocky Mts. KW - temperature KW - H SE8.27:FIRES IN NATURAL ENVIRONMENTS UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16872473?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Wildland+Fire&rft.atitle=When+it%27s+hot%2C+it%27s+hot...+or+maybe+it%27s+not%21+%28Surface+flaming+may+not+portend+extensive+soil+heating%29&rft.au=Hartford%2C+R+A%3BFrandsen%2C+W+H&rft.aulast=Hartford&rft.aufirst=R&rft.date=1992-01-01&rft.volume=21&rft.issue=4&rft.spage=745&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - USA, Rocky Mts.; temperature; vegetation ER - TY - JOUR T1 - Responses of breeding bald eagles, Haliaeetus leucocephalis, to human activities in Northcentral Michigan AN - 16809620; 3551055 AB - To characterize disturbance and analyze eagle response, we recorded 714 events of potentially disturbing human activity near six pairs of Bald Eagles (Haliaeetus leucocephalus) breeding in northcentral Michigan in 1990. Vehicles and pedestrians elicited the highest response frequencies, but aircraft and aquatic activities were the most common. Magnitude of response was inversely proportional to median distance-to-disturbance. Seventy-five percent of all alert and flight responses occurred when activity was within 500 m and 200 m, respectively. Adults responded more frequently than nestlings, and at greater distances-to-disturbance when perched away from nests. May was the peak month for human activity, most of which occurred on weekends (60%) and after noon (72%). Classification tree (CART) models are used to assess disturbance-specific response frequencies and to formulate management considerations. JF - Canadian field-naturalist. Ottawa ON AU - Grubb, T G AU - Bowerman, W W AU - Giesy, J P AU - Dawson, G A AD - USDA Forest Serv., Rocky Mtn. Forest & Range Exp. Stn., 2500 S. Pine Knoll Dr., Flagstaff, AZ 86001, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 443 EP - 453 VL - 106 IS - 4 SN - 0008-3550, 0008-3550 KW - Haliaeetus leucocephalis KW - ASFA 3: Aquatic Pollution & Environmental Quality KW - USA, Michigan KW - aquatic birds KW - breeding KW - anthropogenic factors KW - environmental conditions KW - mathematical models KW - Freshwater KW - behavioural responses KW - Q5 08523:Conservation, wildlife management and recreation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16809620?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+field-naturalist.+Ottawa+ON&rft.atitle=Responses+of+breeding+bald+eagles%2C+Haliaeetus+leucocephalis%2C+to+human+activities+in+Northcentral+Michigan&rft.au=Grubb%2C+T+G%3BBowerman%2C+W+W%3BGiesy%2C+J+P%3BDawson%2C+G+A&rft.aulast=Grubb&rft.aufirst=T&rft.date=1992-01-01&rft.volume=106&rft.issue=4&rft.spage=443&rft.isbn=&rft.btitle=&rft.title=Canadian+field-naturalist.+Ottawa+ON&rft.issn=00083550&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - aquatic birds; breeding; anthropogenic factors; environmental conditions; mathematical models; behavioural responses; USA, Michigan; Freshwater ER - TY - JOUR T1 - A simple and efficient method for the oligodeoxyribonucleotide-directed mutagenesis of double-stranded plasmid DNA AN - 16775822; 3533168 AB - A method for the oligodeoxyribonucleotide-directed mutagenesis of double-stranded DNA without the necessity for phenotypic selection is described. Plasmids denatured with alkali and purified by adsorption to and elution from nitrocellulose have single-stranded regions where primers can hybridize and serve as templates for a T7 DNA polymerase-catalyzed synthesis of complementary mutant DNA strands. When this procedure was carried out such that the original nonmutant strand contained uracil, mutation frequencies of between 30% and 40% were obtained. The technique has been used to generate mutant genes in plasmids of a wide variety of sizes. The largest plasmid manipulated and successfully mutagenized was 22 kb. The method is rapid and efficient and is not dependent upon either f1 phage vectors or the presence of restriction sites in the vicinity of the sequence targeted for mutation. JF - Gene AU - Jung, R AU - Scott, M P AU - Oliveira, LO AU - Nielsen, N C AD - USDA/ARS, Agron. Dep., Purdue Univ., West Lafayette, IN 47907, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 17 EP - 24 VL - 121 IS - 1 SN - 0378-1119, 0378-1119 KW - nitrocellulose KW - oligodeoxyribonucleotides KW - DNA-directed DNA polymerase KW - Microbiology Abstracts B: Bacteriology; Biochemistry Abstracts 2: Nucleic Acids KW - mutagenesis KW - DNA KW - plasmids KW - phage T7 KW - methodology KW - J 02725:DNA KW - N 14610:Occurrence, isolation & assay UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16775822?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Gene&rft.atitle=A+simple+and+efficient+method+for+the+oligodeoxyribonucleotide-directed+mutagenesis+of+double-stranded+plasmid+DNA&rft.au=Jung%2C+R%3BScott%2C+M+P%3BOliveira%2C+LO%3BNielsen%2C+N+C&rft.aulast=Jung&rft.aufirst=R&rft.date=1992-01-01&rft.volume=121&rft.issue=1&rft.spage=17&rft.isbn=&rft.btitle=&rft.title=Gene&rft.issn=03781119&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - phage T7; plasmids; DNA; mutagenesis; methodology ER - TY - JOUR T1 - Spore and geosmin production by Streptomyces tendae on several media AN - 16762177; 3527619 AB - Geosmin (1,10-trans-dimethyl-trans-9-decalol) is produced by several microbial taxa and can impart musty/earthy off-flavors to food, potable water, and aquaculture-raised fish. The bacterium Streptomyces tendae (ATCC 31160) was grown on Hickey-Tresner (HT), Streptomyces (STR), Actinomyces (ACT), and American Type Culture Collection sporulation agar (ATCC). The greatest fresh biomass occurred on ATCC and the least on HT media. Sporulation occurred on ATCC and HT but not on STR and ACT media. Cultures produced geosmin on each media. However, sporulating cultures contained more geosmin than nonsporulating cultures. Cultures grown on ACT medium did not produce geosmin prior to 48 h after inoculation, and neither basic, acidic, nor enzymatic hydrolysis released geosmin, indicating that changes in geosmin content were due to de novo biosynthesis rather than release of bound metabolite. JF - Journal of Agricultural and Food Chemistry AU - Dionigi, C P AU - Millie, D F AU - Spanier, A M AU - Johnsen, P B AD - Food Flavor Qual. Res. Unit, ARS-USDA, 1100 Robert E. Lee Blvd., New Orleans, LA 70124, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 122 EP - 125 VL - 40 IS - 1 SN - 0021-8561, 0021-8561 KW - geosmin KW - Chemoreception Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Streptomyces tendae KW - production KW - off flavor KW - spores KW - food KW - contamination KW - R 18122:Taints & off-flavors KW - A 01017:Human foods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16762177?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Agricultural+and+Food+Chemistry&rft.atitle=Spore+and+geosmin+production+by+Streptomyces+tendae+on+several+media&rft.au=Dionigi%2C+C+P%3BMillie%2C+D+F%3BSpanier%2C+A+M%3BJohnsen%2C+P+B&rft.aulast=Dionigi&rft.aufirst=C&rft.date=1992-01-01&rft.volume=40&rft.issue=1&rft.spage=122&rft.isbn=&rft.btitle=&rft.title=Journal+of+Agricultural+and+Food+Chemistry&rft.issn=00218561&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Streptomyces tendae; spores; production; food; contamination; off flavor ER - TY - JOUR T1 - Survival and growth of stem fragments from various Hydrilla races AN - 16761466; 3530997 AB - Fragments from sixteen separate races of hydrilla [Hydrilla verticillata, (L.f.) Royle] collected worldwide were evaluated in outside aquaria for ability to survive and grow. Differences were observed between races in their potential to establish and grow from fragments. Total biomass varied approximately sevenfold between the least and most productive races. The difference between the initial fragment and final weights ranged from 14 to 250 fold. Survival varied between 10 and 73%. A significant negative relationship was observed between first root development time and biomass. The number of rooted nodes which developed on stolons was the best single predictor of biomass production. Rates of root development on fragments of the various hydrilla races are criteria that may be useful in predicting the ability of the races to become established. Differences in shoot and root development were observed between races in their responses to applied plant growth regulators. JF - Florida Scientist AU - Steward, K K AD - Aquat. Plant Manag. Lab., ARS-USDA, 3205 College Ave., Ft. Lauderdale, FL 33314, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 129 EP - 135 VL - 55 IS - 3 SN - 0098-4590, 0098-4590 KW - stem fragments KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - aquatic plants KW - Freshwater KW - Hydrilla verticillata KW - colonization KW - weeds KW - survival KW - growth KW - D 04640:Other angiosperms KW - Q1 08424:Age and growth UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16761466?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Florida+Scientist&rft.atitle=Survival+and+growth+of+stem+fragments+from+various+Hydrilla+races&rft.au=Steward%2C+K+K&rft.aulast=Steward&rft.aufirst=K&rft.date=1992-01-01&rft.volume=55&rft.issue=3&rft.spage=129&rft.isbn=&rft.btitle=&rft.title=Florida+Scientist&rft.issn=00984590&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - aquatic plants; weeds; survival; colonization; growth; Hydrilla verticillata; Freshwater ER - TY - JOUR T1 - MARYBLYT super(TM): A computer model for the predicting of fire blight disease in apples and pears AN - 16752715; 3517512 AB - MARYBLYT super(TM) is a comprehensive computer program for predicting outbreaks of fire blight disease in apples and pears. The program is fully compiled in Pascal and operates on most IBM-compatible personal computers, including many laptop units. The model system predicts and identifies specific infection events and forecasts the appearance of symptoms for four distinct types of infections. The program is timed with host development, not calender date, and is responsible to daily and cumulative temperatures as well as wetting events, hail and high winds. MARYBLYT super(TM) can be operated in real time to provide an up-to-date assessment on infection risks and disease development, then switched quickly into a simulation mode to make predictions using forecast weather data. Visual messages and audible signals warn the user of potential infections, prompt treatment decisions and advise when to survey for symptoms. JF - COMPUT. ELECTR. AGRIC. AU - Lightner, G W AU - Steiner, P W AD - Appalachian Fruit Res. Stn., USDA-ARS, 45 Wiltshire Rd., Kearneysville, WV 25430, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 249 EP - 260 VL - 7 IS - 3 KW - fire blight disease KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - computer programs KW - fruits KW - prediction KW - J 02880:Plant diseases KW - A 01027:Fruit trees UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16752715?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=COMPUT.+ELECTR.+AGRIC.&rft.atitle=MARYBLYT+super%28TM%29%3A+A+computer+model+for+the+predicting+of+fire+blight+disease+in+apples+and+pears&rft.au=Lightner%2C+G+W%3BSteiner%2C+P+W&rft.aulast=Lightner&rft.aufirst=G&rft.date=1992-01-01&rft.volume=7&rft.issue=3&rft.spage=249&rft.isbn=&rft.btitle=&rft.title=COMPUT.+ELECTR.+AGRIC.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - prediction; fruits; computer programs ER - TY - JOUR T1 - Suppression of aerial hyphae by staling products of Postia placenta AN - 16750893; 3517497 AB - Isolate ME20 is a wild-type monokaryotic strain of the brown-rot fungus Postia placenta that does not cause significant weight losses in standard soil-wood block decay tests. It also fails to form aerial hyphae in liquid and agar culture. This abnormal morphological feature may be caused by the same aberrant physiology that prevents the strain from efficiently degrading wood. Aerial hyphae formation was suppressed in MAD698, a standard floccose strain of P. placenta, when spent media from 14-day-old ME20 cultures made up 40% of more of the nutrient medium. Spent media from MAD698 cultures caused a similar effect but only at 80% and 100% concentrations. This suppression does not appear to be caused by nutrient deprivation or by the activity of extracellular autolytic enzymes. The suppressive factor has a molecular weight of < 10,000 Da, is resistant to boiling, and thus probably non-enzymatic. The inhibition of aerial hyphae formation is probably due to unidentified, low molecular weight staling products. JF - International Biodeterioration & Biodegradation AU - Micales, JA AD - USDA For. Serv., Forest Products Lab., One Gifford Pinchot Dr., Madison, WI 53705-2398, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 285 EP - 302 VL - 30 IS - 4 SN - 0964-8305, 0964-8305 KW - Postia placenta KW - hyphae formation KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Microbiology Abstracts A: Industrial & Applied Microbiology KW - degradation KW - wood KW - inhibition KW - brown rot KW - A 01046:Deterioration & treatment of timber KW - K 03098:Spoilage & biodegradation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16750893?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Biodeterioration+%26+Biodegradation&rft.atitle=Suppression+of+aerial+hyphae+by+staling+products+of+Postia+placenta&rft.au=Micales%2C+JA&rft.aulast=Micales&rft.aufirst=JA&rft.date=1992-01-01&rft.volume=30&rft.issue=4&rft.spage=285&rft.isbn=&rft.btitle=&rft.title=International+Biodeterioration+%26+Biodegradation&rft.issn=09648305&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - brown rot; inhibition; wood; degradation ER - TY - JOUR T1 - Molecular genetic mapping of soybean: Map utilization AN - 16747462; 3513354 AB - Studies were conducted to (i) identify molecular probes that have a high probability of detecting polymorphisms among soybean [Glycine max (L.) Merr.] genotypes, (ii) determine the potential for analyzing genome structure using a molecular genetic map, and (iii) demonstrate the feasibility of a molecular pedigree analysis using mapped RFLP markers. Genomic DNA of 51 genotypes representing U.S. midwestern soybean germplasm was digested with the restriction enzymes HindIII, DraI, EcoRI, EcoRV, and TaqI. A random sample of 32 probes detected polymorphisms between paired comparisons of the 51 genotypes with a frequency from 0 to 72%. On average, no enzyme was strikingly better than any other for detecting polymorphisms. Homeologous chromosomal segments were detected, although they were clearly only remnants with recombination distance disparities and many rearrangements. The soybean genome, if indeed an ancient tetraploid, appears to be highly shuffled or diploidized. RFLP data were compared with the pedigrees of the cultivars Harosoy, Corsoy, Williams, and Clark, using from 58 to 105 mapped markers. Markers on Linkage Groups A and E were analyzed in detail to determine the map positions of polymorphisms and to identify chromosomal segments involved in cultivar development. The polymorphism percentage as detected by molecular markers coincided with genetic distance expectations based on pedigrees. These studies have demonstrated that probe-enzyme combinations can be identified that will be applicable to discerning differences among a broad range of genotypes. Additionally, it has been demonstrated that a detailed RFLP map can be used to increase our understanding of genome evolution and genome structure and, when combined with pedigrees, can be used to determine the ancestral sources of markers in a given cultivar's genome. JF - Crop Science AU - Shoemaker, R C AU - Guffy, R D AU - Lorenzen, L L AU - Specht, JE AD - USDA-ARS, Field Crops Res., Dep. Agron., Iowa State Univ., Ames, IA 50011 Y1 - 1992 PY - 1992 DA - 1992 SP - 1091 EP - 1098 VL - 32 IS - 5 SN - 0011-183X, 0011-183X KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Genetics Abstracts KW - genetics KW - polymorphism KW - genomes KW - mapping KW - Glycine max KW - evolution KW - W2 32065:Plants KW - G 07352:Dicotyledons (miscellaneous) KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16747462?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Effect+of+temperature+on+life+history+characteristics+of+Anisopteromalus+calandrae+%28Hymenoptera%3A+Pteromalidae%29+parasitizing+maize+weevil+larvae+in+corn+kernels.&rft.au=Smith%2C+L&rft.aulast=Smith&rft.aufirst=L&rft.date=1992-01-01&rft.volume=21&rft.issue=4&rft.spage=877&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - genetics; polymorphism; genomes; mapping; evolution; Glycine max ER - TY - JOUR T1 - Cell biology & molecular genetics. Analysis of culture-induced variation in soybean AN - 16739518; 3513355 AB - Genetic variation among culture-regenerated crop plants can be a source of novel and desirable genetic diversity, or it can be a source of detrimental and agronomically unfavorable phenotypic variability. The objectives of this research were to determine the frequency and types of somaclonal variants obtained from culture regenerated soybeans [Glycine max (L.) Merr.]. Four hundred seventy-five plants were regenerated from nine soybean cultivars via direct somatic embryogenesis from cotyledons of immature zygotic embryos. Their R sub(1), R sub(2), and R sub(3) progeny were scored for qualitative variation and inheritance of variant phenotypes. In each generation, sufficient numbers of progeny from R sub(0), R sub(1), and R sub(2) plants were grown to ensure a 95% probability of recovering a homozygous recessive phenotype, assuming single-gene inheritance. Phenotypic variation was observed in the R sub(0), R sub(1), R sub(2), and R sub(3) generations. Variant phenotypes included partial sterility (R sub(0), R sub(1), R sub(2)), complete sterility (R sub(0)), abnormal leaf morphology (R sub(0), R sub(1), R sub(2), R sub(3)), chlorophyll chimeras (R sub(2), R sub(3)), chlorophyll-deficiencies (R sub(2), R sub(3)), changes in growth habit (R sub(2), R sub(3)), yellow edges on cotyledons (R sub(3)), no unifoliates (R sub(3)), dwarf plants (R sub(2)), yellow-green plants (R sub(3)), and isozyme variants (R sub(2)). Inheritance studies of chlorophyll-deficient, curled leaf, and wrinkled leaf plants confirmed that these traits were genetically controlled. Segregation for genetically controlled traits initially was observed in the R sub(2) generation. This study produced variant phenotypes not previously reported that have potential for contributing to the understanding of the soybean genome. JF - Crop Science AU - Amberger, LA AU - Palmer, R G AU - Shoemaker, R C AD - USDA-ARS, Field Crops Res., Dep. Agron., Iowa State Univ., Ames, IA 50011 Y1 - 1992 PY - 1992 DA - 1992 SP - 1103 EP - 1108 VL - 32 IS - 5 SN - 0011-183X, 0011-183X KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Genetics Abstracts KW - regeneration KW - phenotypes KW - genomes KW - crops KW - genetic variance KW - Glycine max KW - W2 32065:Plants KW - G 07352:Dicotyledons (miscellaneous) KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16739518?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Cell+biology+%26amp%3B+molecular+genetics.+Analysis+of+culture-induced+variation+in+soybean&rft.au=Amberger%2C+LA%3BPalmer%2C+R+G%3BShoemaker%2C+R+C&rft.aulast=Amberger&rft.aufirst=LA&rft.date=1992-01-01&rft.volume=32&rft.issue=5&rft.spage=1103&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - regeneration; phenotypes; genomes; crops; genetic variance; Glycine max ER - TY - JOUR T1 - Assay for measuring relative potency of leptospiral bacterins containing serovar Pomona AN - 16731069; 3515910 AB - An enzyme-linked immunosorbent assay (ELISA) was developed for the quantitation of leptospiral antigen in bacterins containing Leptospira interrogans serovar pomona type kennewicki. A monoclonal antibody (MAb), 2D7, which is directed against a surface antigen on whole cells of L. interrogans serovar pomona type kennewicki, was used in the assay. The capture of antigen in bacterins by a polyclonal antiserum was followed by the addition of the 2D7 ascites fluid, an anti-mouse conjugate and substrate. Biologicals evaluated with this system included preparations containing type kennewicki antigen (homologous) and those not containing type kennewicki antigen (heterologous). Heterologous bacterins gave optical density (OD) values comparable to those of blank wells. Homologous bacterins yielded OD values equal to or greater than those of the National Veterinary Services Laboratories (NVSL) reference pomona bacterin. The relative potencies (RP) of 84 licensed commercial Leptospira pomona bacterin serials were evaluated against the NVSL reference pomona bacterin using the NVSL Relative Potency computer program. Random samples of 1, 2, 3 and 5 ml dose products were selected for evaluation with this system. All products tested passed the hamster potency assay required for leptospiral bacterins. This ELISA system enables detection of antigen in bacterins containing L. interrogans serovar pomona type kennewicki and demonstrates the potential for in vitro testing of leptospiral bacterins. JF - Biologicals AU - Ruby, K W AU - Cardella, MA AU - Knudtson, WU AD - Natl. Vet. Serv. Lab., Vet. Serv., Anim. and Plant Health Inspect. Serv., USDA, Ames, IA 50010, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 259 EP - 266 VL - 20 IS - 4 SN - 1045-1056, 1045-1056 KW - Immunology Abstracts; Microbiology Abstracts B: Bacteriology KW - Leptospira interrogans KW - quantitation KW - bacterins KW - antigens KW - enzyme-linked immunosorbent assay KW - J 02831:Techniques and reagents KW - F 06723:Other labelling methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16731069?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biologicals&rft.atitle=Assay+for+measuring+relative+potency+of+leptospiral+bacterins+containing+serovar+Pomona&rft.au=Ruby%2C+K+W%3BCardella%2C+MA%3BKnudtson%2C+WU&rft.aulast=Ruby&rft.aufirst=K&rft.date=1992-01-01&rft.volume=20&rft.issue=4&rft.spage=259&rft.isbn=&rft.btitle=&rft.title=Biologicals&rft.issn=10451056&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Leptospira interrogans; bacterins; antigens; quantitation; enzyme-linked immunosorbent assay ER - TY - JOUR T1 - Effects of large woody debris removal on physical characteristics of a sand-bed river AN - 16724399; 3712976 AB - Removal of large woody debris (LWD) is one of the most widely practised stream alterations, particularly in sand-bed rivers of the south-eastern USA. Selective removal of LWD has been proposed as an alternative to orthodox non-selective clearing in order to conserve ecological resources, but methods for comparing hydraulic and environmental effects of selective and non-selective removal have not been developed. Conservation of stream habitats requires quantification of LWD removal impacts on physical habitat. Physical characteristics of straightened, sand-bed reaches of the south fork of the Obion River in western Tennessee, USA that were rich in LWD were compared with those in similar reaches where debris had recently been removed using selective removal guidelines. The mean volume of LWD per unit water volume was 0.0545 in the uncleared reaches, but nearly 60% lower (0.0225) in the cleared reach. A simple technique for predicting hydraulic roughness in channels with varying amounts of LWD was developed. Hydraulic roughness as measured by the Darcy-Weisbach friction factor, was about 400% greater in uncleared reaches at base flow but declined to a level about 35% greater than for the cleared reaches at higher flows. Predicted friction factors were within 35% of measured friction factors at higher flows. Physical habitat diversity in this channelized sand-bed stream was strongly related to the density of LWD. Flow conditions in the uncleared reaches were more heterogeneous than in the cleared reach, especially at low flow. At low flow, uncleared reaches tended to be shallower, have lower velocities, slightly finer bed material, and more heterogeneous conditions overall. Shannon indices based on depth and velocity were an average of 48% higher in uncleared reaches. Bed sediments underneath and immediately adjacent to LWD formations were finer and contained more organic matter than sediments distant from LWD. However, when all bed samples were considered, organic content was positively correlated with median grain size. JF - Aquatic Conservation: Marine and Freshwater Ecosystems AU - Shields, FD Jr AU - Smith, R H AD - USDA-ARS, Natl. Sediment. Lab., Oxford, MS 38655-1157, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 145 EP - 163 VL - 2 IS - 2 SN - 1062-7613, 1062-7613 KW - USA, Tennessee, Obion R. KW - ecosystem analysis KW - microenvironments KW - microhabitats KW - river basin management KW - sediment properties KW - stream flow rate KW - streams KW - water flow KW - ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts KW - wood KW - Freshwater KW - river beds KW - USA, Tennessee KW - ecosystem management KW - hydrodynamics KW - Q5 08523:Conservation, wildlife management and recreation KW - D 04310:Freshwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16724399?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aquatic+Conservation%3A+Marine+and+Freshwater+Ecosystems&rft.atitle=Effects+of+large+woody+debris+removal+on+physical+characteristics+of+a+sand-bed+river&rft.au=Shields%2C+FD+Jr%3BSmith%2C+R+H&rft.aulast=Shields&rft.aufirst=FD&rft.date=1992-01-01&rft.volume=2&rft.issue=2&rft.spage=145&rft.isbn=&rft.btitle=&rft.title=Aquatic+Conservation%3A+Marine+and+Freshwater+Ecosystems&rft.issn=10627613&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - wood; ecosystem management; river basin management; stream flow rate; hydrodynamics; sediment properties; microhabitats; river beds; ecosystem analysis; microenvironments; water flow; streams; USA, Tennessee; Freshwater ER - TY - JOUR T1 - Electrophoretic analysis of cationic proteins extracted from aflatoxin-resistant/susceptible varieties of corn AN - 16715746; 3505024 AB - The cationic proteins from two varieties of corn, Zea mays L., that are resistant (Yellow Creole) and susceptible (Huffman) to aflatoxin contamination were characterized by electrophoresis. Under native conditions, cathodic electrophoresis showed a cluster of proteins at R sub(f) = 5.0-6.5 in Yellow Creole that was not evident in Huffman. SDS-PAGE showed approximately 12 bands that ranged between 14 and 43 kDa in both varieties. The profiles were different, both qualitatively and quantitatively. The major proteins in Yellow Creole clustered around 20 kDa on the gel and those in Huffman around 25 kDa. Qualitative variations of proteins by two-dimensional electrophoresis were evident, especially within the pH range 6.7-8.0 and around 27 and 92 kDa. The results are discussed in connection with the possible role of polypeptides as antifungal agents in species of corn. JF - Journal of Agricultural and Food Chemistry AU - Neucere, J N AD - Southern Reg. Res. Cent., ARS-USDA, P.O. Box 19687, New Orleans, LA 70124, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1422 EP - 1424 VL - 40 IS - 8 SN - 0021-8561, 0021-8561 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Aspergillus flavus KW - aflatoxins KW - analysis KW - Zea mays KW - susceptibility KW - resistance KW - proteins KW - mycotoxins KW - A 01022:Mycotoxins KW - K 03082:Mycotoxins UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16715746?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Influence+of+conidial+color+on+inactivation+of+several+entomogenous+fungi+%28Hyphomycetes%29+by+simulated+sunlight.&rft.au=Ignoffo%2C+C+M%3BGarcia%2C+C&rft.aulast=Ignoffo&rft.aufirst=C&rft.date=1992-01-01&rft.volume=21&rft.issue=4&rft.spage=913&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aspergillus flavus; Zea mays; aflatoxins; resistance; susceptibility; proteins; analysis; mycotoxins ER - TY - JOUR T1 - Detection of fungal contamination in corn: Potential of FTIR-PAS and -DRS AN - 16714755; 3505028 AB - Evaluation of agricultural grains, such as corn, suffers from a lack of techniques that can analyze solid materials. Two techniques, photoacoustic spectroscopy (PAS) and diffuse reflectance spectroscopy (DRS), were coupled to a Fourier transform infrared (FTIR) spectrometer to provide information about the mid-infrared absorption spectra of corn. Spectra generated from corn that was infected with Fusarium moniliforme or Aspergillus flavus, two mycotoxin producers, were dramatically different from those of uninfected corn. For F. moniliforme, enhanced spectral differences were associated with elevated culture toxicity. Preliminary studies to appraise the sensitivity of the methodology were conducted utilizing DRS. These indicated that spectra of corn contaminated at the 3% level (dry weight basis) with F. moniliforme were distinguishable from spectral variations associated with compositional divergence of different corn varieties. PAS was a more sensitive technique for detecting such fungal contaminations. Unfortunately, from a practical standpoint, PAS can presently analyze only one intact kernel at a time. JF - Journal of Agricultural and Food Chemistry AU - Greene, R V AU - Gordon, SH AU - Jackson, MA AU - Bennett, G A AU - McClelland, J F AU - Jones, R W AD - Biopolymer Res., Ferment. Biochem. Res. and Mycotoxin Res., Natl. Cent. Agric. Util. Res., ARS-USDA, 1815 N. University St., Peoria, IL 61604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1144 EP - 1149 VL - 40 IS - 7 SN - 0021-8561, 0021-8561 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Aspergillus flavus KW - Fusarium moniliforme KW - detection KW - Zea mays KW - grain KW - mycotoxins KW - A 01022:Mycotoxins KW - K 03082:Mycotoxins KW - A 01017:Human foods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16714755?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Agricultural+and+Food+Chemistry&rft.atitle=Detection+of+fungal+contamination+in+corn%3A+Potential+of+FTIR-PAS+and+-DRS&rft.au=Greene%2C+R+V%3BGordon%2C+SH%3BJackson%2C+MA%3BBennett%2C+G+A%3BMcClelland%2C+J+F%3BJones%2C+R+W&rft.aulast=Greene&rft.aufirst=R&rft.date=1992-01-01&rft.volume=40&rft.issue=7&rft.spage=1144&rft.isbn=&rft.btitle=&rft.title=Journal+of+Agricultural+and+Food+Chemistry&rft.issn=00218561&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Fusarium moniliforme; Aspergillus flavus; Zea mays; mycotoxins; detection; grain ER - TY - JOUR T1 - Reversed-phase high-performance liquid chromatographic separation of potato glycoalkaloids and hydrolysis products on acidic columns AN - 16711306; 3505808 AB - As part of a program of potato improvement, improved procedures were developed for reversed-phase high-performance liquid chromatographic (HPLC) separation of the alkaloids present in commercial potatoes: the two major glycoalkaloids, alpha -chaconine and alpha -solanine; hydrolysis products or metabolites derived from these two compounds, the so-called beta - and gamma -chaconines and solanines; and their aglycon, solanidine. For comparison, we also included the glycoside solasonine, present in wild potatoes, and its aglycon solasodine. Column "acidity", caused by active silanol sites on the packing's surface, was found to strongly influence chromatographic separation of Solanum alkaloids. Ten commercially available HPLC columns with reversed-phase packings in a total of 13 configurations were evaluated for relative acidity, with the aid of two standards: diphenhydramine and 5-(p-methylphenyl)-5-phenylhydantoin. Resolution of the glycoalkaloids improved with increasing acidity. JF - Journal of Agricultural and Food Chemistry AU - Friedman, M AU - Levin, CE AD - Food Saf. Res. Unit, Western Reg. Res. Cent., ARS-USDA, 800 Buchanan St., Albany, CA 94710, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 2157 EP - 2163 VL - 40 IS - 11 SN - 0021-8561, 0021-8561 KW - glycoalkaloids KW - Toxicology Abstracts KW - separation KW - Solanum KW - hydrolysis KW - high-performance liquid chromatography KW - products KW - X 24120:Food, additives & contaminants KW - X 24172:Plants KW - X 24222:Analytical procedures UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16711306?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Agricultural+and+Food+Chemistry&rft.atitle=Reversed-phase+high-performance+liquid+chromatographic+separation+of+potato+glycoalkaloids+and+hydrolysis+products+on+acidic+columns&rft.au=Friedman%2C+M%3BLevin%2C+CE&rft.aulast=Friedman&rft.aufirst=M&rft.date=1992-01-01&rft.volume=40&rft.issue=11&rft.spage=2157&rft.isbn=&rft.btitle=&rft.title=Journal+of+Agricultural+and+Food+Chemistry&rft.issn=00218561&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Solanum; hydrolysis; products; separation; high-performance liquid chromatography ER - TY - JOUR T1 - Subunit interactions of rubisco activase: Polyethylene glycol promotes self-association, stimulates ATPase and activation activities, and enhances interactions with rubisco. AN - 16700318; 2980380 AB - The effect of polyethylene glycol on the enzymatic and physical properties of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) activase was examined. JF - Archives of Biochemistry and Biophysics AU - Salvucci, ME AD - USDA-ARS and Agron. Dep., Univ. Kentucky, Lexington, KY 40546-0076, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 688 EP - 696 VL - 298 IS - 2 SN - 0003-9861, 0003-9861 KW - Spinacia oleracea KW - activity KW - enhancement KW - interaction KW - polyethylene glycol KW - ribulose-bisphosphate carboxylase KW - subunits KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16700318?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Archives+of+Biochemistry+and+Biophysics&rft.atitle=Subunit+interactions+of+rubisco+activase%3A+Polyethylene+glycol+promotes+self-association%2C+stimulates+ATPase+and+activation+activities%2C+and+enhances+interactions+with+rubisco.&rft.au=Salvucci%2C+ME&rft.aulast=Salvucci&rft.aufirst=ME&rft.date=1992-01-01&rft.volume=21&rft.issue=5&rft.spage=1092&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Production of hydroxybenzoic acids by Bradyrhizobium japonicum strains after treatment with glyphosate. AN - 16674919; 3050378 AB - Glyphosate (N-(phosphonomethyl) glycine) effects on the growth and metabolism of the nitrogen-fixing soybean (Glycine max ) symbiont Bradyrhizobium japonicum were investigated. In higher plants glyphosate inhibits the shikimic acid pathway, causing accumulations of shikimic acid and certain benzoic acids, such as protocatechuic (PCA) and gallic acid. We sought to determine whether glyphosate also causes the accumulation of shikimic acid-derived benzoic acids in B. japonicum . Three strains (USDA 110, 123, and 138) were grown in defined media lacking aromatic amino acids. Glyphosate at concentrations of 0.5 and 1 mM was inhibitory but not lethal. Cell death occurred in response to 5 mM glyphosate, and rapid death was observed at 10 mM. Accumulations of 1 mM PCA were observed in the culture media of strains 123 and 138. Only trace amounts of PCA accumulated in untreated controls or in strain 110 cultures. All strains were able to metabolize PCA in the absence of glyphosate. The high levels of PCA produced by B. japonicum strains may alter the symbiotic interactions between this bacterium and glyphosate-resistant varieties of soybean. JF - Journal of Agricultural and Food Chemistry AU - Moorman, T B AU - Becerril, J M AU - Lydon, J AU - Duke, SO AD - Natl. Soil Tilth Lab., USDA-ARS, 2150 Pammel Dr., Ames, IA 50011, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 289 EP - 293 VL - 40 IS - 2 SN - 0021-8561, 0021-8561 KW - glyphosate KW - hydroxybenzoic acid KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - symbiosis KW - Bradyrhizobium japonicum KW - nitrogen fixation KW - Glycine max KW - A 01051:Nitrogen cycle KW - J 02812:Antibacterial Agents: Others UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16674919?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Agricultural+and+Food+Chemistry&rft.atitle=Production+of+hydroxybenzoic+acids+by+Bradyrhizobium+japonicum+strains+after+treatment+with+glyphosate.&rft.au=Moorman%2C+T+B%3BBecerril%2C+J+M%3BLydon%2C+J%3BDuke%2C+SO&rft.aulast=Moorman&rft.aufirst=T&rft.date=1992-01-01&rft.volume=40&rft.issue=2&rft.spage=289&rft.isbn=&rft.btitle=&rft.title=Journal+of+Agricultural+and+Food+Chemistry&rft.issn=00218561&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Bradyrhizobium japonicum; Glycine max; nitrogen fixation; symbiosis ER - TY - JOUR T1 - Evaluation of the efficacy of an oil-emulsion bacterin for protecting chickens against Salmonella enteritidis . AN - 16661968; 3023648 AB - To assess the potential protective efficacy of a Salmonella enteritidis bacterin, an acetone-killed oil-emulsion vaccine was prepared from a phage type 13a S. enteritidis strain and administered subcutaneously to hens in two experiments. Hens were housed individually, and every other hen was vaccinated (at 23 weeks of age in one experiment and at 45 weeks in the other). A second (booster) bacterin injection was administered 6 weeks later in both experiments. Three weeks after the second vaccination, all hens were challenged with an oral dose of approximately 10 super(9) cells of a heterologous (phage type 14b) S. enteritidis) strain. In both trials, S. enteritidis was isolated from fewer internal organs (spleens, ovaries, and oviducts) and pools of egg contents from vaccinated hens than from unvaccinated control hens. Vaccination did not, however, affect the percentage of hens that shed S. enteritidis in feces in either experiment. JF - Avian Diseases AU - Gast, R K AU - Stone, H D AU - Holt, P S AU - Beard, C W AD - USDA-ARS, Southeast Poult. Res. Lab., 934 College Station Rd., Athens, GA 30605, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 992 EP - 999 VL - 36 IS - 4 SN - 0005-2086, 0005-2086 KW - chickens KW - Microbiology Abstracts B: Bacteriology KW - gastrointestinal tract KW - immunity KW - efficacy KW - colonization KW - vaccination KW - Salmonella enteritidis KW - J 02834:Vaccination and immunization UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16661968?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+Diseases&rft.atitle=Evaluation+of+the+efficacy+of+an+oil-emulsion+bacterin+for+protecting+chickens+against+Salmonella+enteritidis+.&rft.au=Gast%2C+R+K%3BStone%2C+H+D%3BHolt%2C+P+S%3BBeard%2C+C+W&rft.aulast=Gast&rft.aufirst=R&rft.date=1992-01-01&rft.volume=36&rft.issue=4&rft.spage=992&rft.isbn=&rft.btitle=&rft.title=Avian+Diseases&rft.issn=00052086&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Salmonella enteritidis; vaccination; efficacy; immunity; colonization; gastrointestinal tract ER - TY - JOUR T1 - Effect of used litter from floor pens of adult broilers on salmonella colonization of broiler chicks. AN - 16631640; 3023615 AB - The effect of used pine-shaving litter from broiler floor pens on Salmonella colonization resistance was evaluated in broiler chicks. One-day-old chicks were placed in floor pens on fresh unused litter or on used litter. All chicks were challenged orally with 10 super(4) S. typhimurium) at 3 days of age. The study was replicated in three trials with used litter that was collected and stored for 1 day (Trial 1), 4 days (Trial 2), or 50 days (Trial 3) before the start of each trial. Cecal concentrations of volatile fatty acids (VFAs) were significantly higher (P < 0.05) in chicks placed on used litter than in chicks on new litter. In all three trials, the number of Salmonella in the cecal contents and the number of Salmonella cecal-culture-positive chicks was significantly lower (P < 0.01) at 10 days and 20 days of age in the chicks on used litter than in the chicks on new litter. The results indicated that newly hatched chicks reared on used litter had higher cecal VFA concentrations and higher resistance to Salmonella colonization than chicks reared on new litter. JF - Avian Diseases AU - Corrier, DE AU - Hinton, A Jr AU - Hargis, B AU - DeLoach, J R AD - USDA-ARS, Food Anim. Protect. Res. Lab., Route 5, Box 810, College Station, TX 77845, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 897 EP - 902 VL - 36 IS - 4 SN - 0005-2086, 0005-2086 KW - chickens KW - Microbiology Abstracts B: Bacteriology KW - fatty acids KW - cecum KW - resistance KW - Salmonella typhimurium KW - culture KW - colonization KW - J 02862:Infection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16631640?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+Diseases&rft.atitle=Effect+of+used+litter+from+floor+pens+of+adult+broilers+on+salmonella+colonization+of+broiler+chicks.&rft.au=Corrier%2C+DE%3BHinton%2C+A+Jr%3BHargis%2C+B%3BDeLoach%2C+J+R&rft.aulast=Corrier&rft.aufirst=DE&rft.date=1992-01-01&rft.volume=36&rft.issue=4&rft.spage=897&rft.isbn=&rft.btitle=&rft.title=Avian+Diseases&rft.issn=00052086&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Salmonella typhimurium; colonization; cecum; fatty acids; culture; resistance ER - TY - JOUR T1 - Biodegradation of 2,4-dichlorophenoxyacetic acid and 2,4,5-trichlorophenoxyacetic acid and 2,4,5-trichlorophenoxyacetic acid by dichlorophenol-adapted microorganisms from freshwater, anaerobic sediments. AN - 16621387; 2989719 AB - Reductive dechlorination of 2,4-dichlorophenoxyacetic acid (2,4-D) and 2,4,5-trichlorophenoxyacetic acid (2,4,5-T) was investigated in anaerobic sediments by non-adapted microorganisms and by microorganisms adapted to either 2,4- or 3,4-dichlorophenol (DCP). The rate of dechlorination of 2,4-D was increased by adaptation of sediment microorganisms to 2,4-DCP while dechlorination by sediment microorganisms adapted to 3,4-DCP displayed a lag phase similar to non-adapted sediment slurries. Both 2,4- and 3,4-DCP-adapted microorganisms produced 4-chlorophenoxyacetic acid by ortho-chlorine removal. Lag phases prior to dechlorination of the initial addition of 2,4,5-T by DCP-adapted sediment microorganisms were comparable to those from non-adapted sediment slurries. However, the rates of dechlorination increased upon subsequent additions of 2,4,5-T. Biodegradation of 2,4,5-T by sediment microorganisms adapted to 2,4- and/or 3,4-DCP produced 2,5-D as the initial intermediate followed by 3-chlorophenol and phenol indicating a para > ortho > meta order of dechlorination. Dechlorination of 2,4,5-T, by either adapted or non-adapted sediment microorganisms, progressed without detection of 2,4,5-trichlorophenol as an intermediate. JF - Applied Microbiology and Biotechnology AU - Bryant, F O AD - Russell ARC/USDA, P.O. Box 5677, Coll. Stn. Rd., Athens, GA 30613, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 276 EP - 281 VL - 38 IS - 2 SN - 0175-7598, 0175-7598 KW - 2,4,5-I KW - 2,4,5-trichlorophenoxyacetic acid KW - 2,4-D KW - 2,4-dichlorophenoxyacetic acid KW - freshwater lakes KW - ASFA 1: Biological Sciences & Living Resources; ASFA Marine Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - chlorinated hydrocarbons KW - biodegradation KW - Freshwater KW - dechlorination KW - bacteria KW - sediments KW - microorganisms KW - Q1 08206:Physiology, biochemistry, biophysics KW - Q4 27480:Environmental Applications/Impact KW - A 01016:Microbial degradation KW - J 02722:Biodegradation, growth, nutrition and leaching UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16621387?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Microbiology+and+Biotechnology&rft.atitle=Biodegradation+of+2%2C4-dichlorophenoxyacetic+acid+and+2%2C4%2C5-trichlorophenoxyacetic+acid+and+2%2C4%2C5-trichlorophenoxyacetic+acid+by+dichlorophenol-adapted+microorganisms+from+freshwater%2C+anaerobic+sediments.&rft.au=Bryant%2C+F+O&rft.aulast=Bryant&rft.aufirst=F&rft.date=1992-01-01&rft.volume=38&rft.issue=2&rft.spage=276&rft.isbn=&rft.btitle=&rft.title=Applied+Microbiology+and+Biotechnology&rft.issn=01757598&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - chlorinated hydrocarbons; biodegradation; freshwater lakes; dechlorination; bacteria; sediments; microorganisms; Freshwater ER - TY - JOUR T1 - Effect of virginiamycin on serum carotenoid levels and long, segmented, filamentous organisms in broiler chicks. AN - 16606958; 3023652 AB - Virginiamycin (Stafac 20)) was mixed with feed at three levels recommended for chickens-5.5, 11, and 22 mg/kg (respectively 5, 10 and 20 g/ton)-and fed to broiler chicks. When fed from 1 day through 2 weeks of age, the drug appeared to retard infection of the lower small intestine by long, segmented, filamentous organisms (LSFOs), and at 2 weeks of age serum carotenoids in treated chicks were significantly higher than levels found in unmedicated chicks. However, as chicks were grown out to 4 and 6 weeks of age, the drug did not completely prevent eventual LSFO infection, even at the highest dose, and mean serum carotenoid levels in treated chicks were not significantly different from levels in control chicks. However, chicks fed at the level of 22 mg/kg had fewer LSFOs. Withdrawal of virginiamycin from treated chicks at 4 weeks of age allowed LSFO infection to occur but did not significantly affect serum carotenoid levels. When the drug was fed for 2 weeks at 22 mg/kg to 2-week-old chicks already infected with LSFOs, the bacteria could no longer be detected, suggesting that virginiamycin may aid the natural decline in LSFO population. Coincident with this treatment, serum carotenoids were higher, but not significantly so. Virginiamycin did not significantly increase the mean body weights of chicks in any of these experiments. JF - Avian Diseases AU - Allen, P C AD - USDA-ARS, Livestock and Poult. Sci. Inst., Protozoan Dis. Lab., Build. 1040, Rm 100A, BARC-East, Beltsville, MD 20705, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 852 EP - 857 VL - 36 IS - 4 SN - 0005-2086, 0005-2086 KW - chickens KW - carotenoids KW - virginiamycin KW - Microbiology Abstracts B: Bacteriology KW - animal breeding KW - bacteria KW - infection KW - viruses KW - serological tests KW - J 02862:Infection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16606958?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+Diseases&rft.atitle=Effect+of+virginiamycin+on+serum+carotenoid+levels+and+long%2C+segmented%2C+filamentous+organisms+in+broiler+chicks.&rft.au=Allen%2C+P+C&rft.aulast=Allen&rft.aufirst=P&rft.date=1992-01-01&rft.volume=36&rft.issue=4&rft.spage=852&rft.isbn=&rft.btitle=&rft.title=Avian+Diseases&rft.issn=00052086&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - bacteria; viruses; infection; animal breeding; serological tests ER - TY - JOUR T1 - Immunotoxicity of ochratoxin A to growing gilts. AN - 16599082; 2991835 AB - Ochratoxin A (OA) was incorporated in the diets of growing gilts (mean body weight, 20.1 kg) at a concentration of 2.5 mg of OA/kg of feed and was fed continuously for 35 days. Humoral and cell-mediated immunologic measurements were evaluated to determine the effects of OA on immune function in swine. Cutaneous basophil hypersensitivity to phytohemagglutinin (PHA), delayed hypersensitivity to tuberculin, PHA-induced lymphocyte blastogenesis, interleukin-2 production, total and isotype immunoglobulin concentrations, antibody response to chicken RBC, and macrophage activation were used to evaluate immune function. Gilts treated with OA had reduced cutaneous basophil hypersensitivity response to PHA, reduced delayed hypersensitivity to tuberculin, decreased stimulation index for lymphoblastogenesis, decreased interleukin-2 production when lymphocytes were stimulated with concanavalin A, and decreased number and phagocytic activity of macrophages. JF - American Journal of Veterinary Research AU - Harvey, R B AU - Elissalde, M H AU - Kubena, L F AU - Weaver, E A AU - Corrier, DE AU - Clement, BA AD - USDA, Agric. Res. Serv., Food Anim. Prot. Res. Lab., College Station, TX 77845, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1966 EP - 1970 VL - 53 IS - 10 SN - 0002-9645, 0002-9645 KW - ochratoxin A KW - pigs KW - Immunology Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology; Toxicology Abstracts KW - immune system KW - Penicillium KW - Aspergillus KW - interleukin 2 KW - toxicity KW - mycotoxins KW - immunosuppression KW - lymphoblasts KW - phagocytosis KW - hypersensitivity KW - K 03082:Mycotoxins KW - X 24171:Microbial KW - F 06791:Experimental UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16599082?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Journal+of+Veterinary+Research&rft.atitle=Immunotoxicity+of+ochratoxin+A+to+growing+gilts.&rft.au=Harvey%2C+R+B%3BElissalde%2C+M+H%3BKubena%2C+L+F%3BWeaver%2C+E+A%3BCorrier%2C+DE%3BClement%2C+BA&rft.aulast=Harvey&rft.aufirst=R&rft.date=1992-01-01&rft.volume=53&rft.issue=10&rft.spage=1966&rft.isbn=&rft.btitle=&rft.title=American+Journal+of+Veterinary+Research&rft.issn=00029645&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aspergillus; Penicillium; immune system; toxicity; hypersensitivity; lymphoblasts; interleukin 2; phagocytosis; immunosuppression; mycotoxins ER - TY - JOUR T1 - Identification and inheritance of metribuzin tolerance in wild soybean AN - 16569711; 3652238 AB - An economically important agronomic trait that has not been evaluated extensively in the wild soybean (Glycine soja Sieb. & Zucc.) is tolerance to herbicides. Identification and genetic characterization of tolerance to a widely used herbicide, metribuzin [4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)- one], in G. soja may help provide greater diversity in the gene pool for this trait. This study was conducted to identify tolerance to metribuzin in the wild soybean and to determine the genetic control of the trait. Crosses were made between metribuzin-tolerant G. soja selections and metribuzin-sensitive selections of G. max (L.) Merr. The F sub(1), F sub(2), and F sub(3) populations from these crosses were grown hydroponically, and evaluated for reaction to a concentration of 125 mu g L super(-1) metribuzin. (DBO) JF - Crop Science AU - Kilen, T C AU - He, Guohao AD - USDA-ARS, Soybean Prod. Res. Unit, P.O. Box 196, Stoneville, MS 38776, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 684 EP - 685 VL - 32 IS - 3 SN - 0011-183X, 0011-183X KW - metribuzin KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts KW - Glycine soja KW - germplasm KW - tolerance KW - W2 32445:Pest control KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16569711?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Identification+and+inheritance+of+metribuzin+tolerance+in+wild+soybean&rft.au=Kilen%2C+T+C%3BHe%2C+Guohao&rft.aulast=Kilen&rft.aufirst=T&rft.date=1992-01-01&rft.volume=32&rft.issue=3&rft.spage=684&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - germplasm; tolerance; Glycine soja ER - TY - JOUR T1 - Variability of malate dehydrogenase among cotton cultivars with differing fiber traits AN - 16569688; 3652236 AB - Little is understood about the biochemical basis of differences in quantitative traits of cotton (Gossypium hirsutum L.) fiber. Malate dehydrogenase (MDH) is implicated as an enzyme that may have an effect on extension growth during the development of cotton fiber. Our objectives were, first, to determine if variability among cultivars exists for MDH, and, second, to determine if variability in MDH can be correlated with quantitative traits of fiber. Twenty-four cultivars G. hirsutum were chosen. Polyacrylamide gel electrophoresis was used to search for MDH allozyme variation in etiolated cotyledons. Additionally, MDH activity in developing fiber was measured. All cultivars were grown in 1990 at two sites near Stoneville, MS. At 12 days post anthesis (DPA), immature bolls were harvested and the fiber separated from the ovules. (DBO) JF - Crop Science AU - Kloth, R H AD - USDA-ARS, Cotton Physiol. and Genet. Res. Unit, P.O. Box 345, Stoneville, MS 38776, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 617 EP - 621 VL - 32 IS - 3 SN - 0011-183X, 0011-183X KW - malate dehydrogenase KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts KW - fibers KW - cultivars KW - isoenzymes KW - Gossypium hirsutum KW - W2 32440:Plant breeding KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16569688?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Variability+of+malate+dehydrogenase+among+cotton+cultivars+with+differing+fiber+traits&rft.au=Kloth%2C+R+H&rft.aulast=Kloth&rft.aufirst=R&rft.date=1992-01-01&rft.volume=32&rft.issue=3&rft.spage=617&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - fibers; cultivars; isoenzymes; Gossypium hirsutum ER - TY - JOUR T1 - Physiological effects of red phosphorus smoke inhalation on prairie dogs and rock doves. AN - 16531528; 2968461 AB - Pulmonary function, blood chemistry, and hematology studies were conducted with prairie dogs (Cynomys ludovicianus ) and rock doves (Columba livia ) under resting conditions to assess environmental risk of exposing wildlife species to multiple applications of red phosphorus/butyl rubber smoke (0.0, 1.0, and 4.0 mg/L). Four daily 80-min smoke exposures had no significant physiological effect on prairie dogs. However, with rock doves, two daily 80-min smoke exposures resulted in elevated respiratory frequency in two males followed by death, a significant concentration x day effect on carbon dioxide production, respiratory exchange ratio, metabolic rate, lymphocytes, and heterophiles, and a significant sex x concentration effect on hemoglobin and methemoglobin. Although results showed that rock doves are more vulnerable to red phosphorus/butyl rubber smoke than prairie dogs, it appears that exposure to the smoke is unlikely to pose a significant risk to either species under field conditions. JF - Environmental Toxicology and Chemistry AU - Johns, B E AU - Thompson, R D AU - Crane, KA AD - USDA, Anim. and Plant Health Inspection Serv., Sci. and Technol., Denver Wildl. Res. Cent., Denver, CO 80225-0226, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1345 EP - 1353 VL - 11 IS - 9 SN - 0730-7268, 0730-7268 KW - red phosphorus smoke KW - haematology KW - red phosphorus KW - Health & Safety Science Abstracts; Pollution Abstracts; Toxicology Abstracts KW - inhalation KW - smoke KW - lung KW - Cynomys ludovicianus KW - Columba livia KW - H SE1.21:WILDLIFE KW - X 24240:Miscellaneous KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16531528?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Physiological+effects+of+red+phosphorus+smoke+inhalation+on+prairie+dogs+and+rock+doves.&rft.au=Johns%2C+B+E%3BThompson%2C+R+D%3BCrane%2C+KA&rft.aulast=Johns&rft.aufirst=B&rft.date=1992-01-01&rft.volume=11&rft.issue=9&rft.spage=1345&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - Cynomys ludovicianus; Columba livia; inhalation; lung; smoke ER - TY - JOUR T1 - Investment decisions and transferable discharge permits: An empirical study of water quality management under policy uncertainty. AN - 16497815; 2949192 AB - The problem of investment decisions for sources participating in transferable discharge permit (TDP) markets has not received much attention. One way TDPs offer potential savings is with their ability to influence development in a region. Static models have assessed the potential savings of TDPs but do not explicitly consider investment decisions; thus they do not capture this long run role nor that of policy uncertainty and tend to understate both the cost saving potential and the difficulty in achieving it. This paper addresses both problems by emphasizing the temporal dimension of TDPs. A two-period investment model investigates the magnitude of these potential savings and the effects of two types of policy uncertainty upon expected gains from permit trading. JF - Environmental & Resource Economics AU - Letson, D AD - Resour. and Technol. Div., Econ. Res. Serv., USDA, Rm. 438E, 1301 New York Ave., NW, Washington, DC 20005-4788, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 441 EP - 458 VL - 2 IS - 5 SN - 0924-6460, 0924-6460 KW - environmental management KW - transferable discharge permit (TDP) KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - Marine KW - wastewater treatment KW - environment management KW - regional planning KW - Brackish KW - Freshwater KW - USA KW - economics KW - water quality control KW - pollution control KW - P 3000:SEWAGE & WASTEWATER TREATMENT KW - Q5 08505:Prevention and control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16497815?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+%26+Resource+Economics&rft.atitle=Investment+decisions+and+transferable+discharge+permits%3A+An+empirical+study+of+water+quality+management+under+policy+uncertainty.&rft.au=Letson%2C+D&rft.aulast=Letson&rft.aufirst=D&rft.date=1992-01-01&rft.volume=2&rft.issue=5&rft.spage=441&rft.isbn=&rft.btitle=&rft.title=Environmental+%26+Resource+Economics&rft.issn=09246460&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - wastewater treatment; regional planning; environment management; economics; water quality control; pollution control; USA; Marine; Brackish; Freshwater ER - TY - JOUR T1 - Enzymatic activities of citrus leaves from plants resistant and susceptible to citrus bacterial canker disease. AN - 16495468; 2935996 AB - The activities of catalase (EC 1.11.1.6; CAT), peroxidase (EC 1.11.1.7; POD), polyphenoloxidase (EC 1.10.3.1; PPO), glucose-6-phosphate dehydrogenase (EC 1.1.1.49; G6PDH), 6-phosphogluconate dehydrogenase (EC 1.1.1.44; 6PGDH), isocitrate dehydrogenase (EC 1.1.1.42; ICDH), and the total phenolic content in citrus leaves differing in susceptibility to infection by strains of Xanthomonas campestris pv. citri (Xcc) were determined. The levels of oxidative enzymes (CAT, POD and PPO), pentose-phosphate cycle enzymes (G6PDH and 6PGDH), and the total phenolic contents were higher in Xcc resistant plants (Yuzu, Dancy, Cleopatra, and Kawano Wase) than in susceptible plants (citrumelo, lemon, Rough lemon and grapefruit). However, the glycolysis-tricarboxylic acid cycle enzyme, ICDH, was lower in Xcc resistant plants than in susceptible plants. JF - Environmental and Experimental Botany AU - Jiao, HJ AU - Wang, SY AU - Civerolo, EL AD - Fruit Lab., ARS-USDA, Beltsville, MD 20705-2350, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 465 EP - 470 VL - 32 IS - 4 SN - 0098-8472, 0098-8472 KW - pv.citri KW - Microbiology Abstracts B: Bacteriology; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Citrus KW - enzymatic activity KW - leaves KW - canker KW - susceptibility KW - infection KW - resistance KW - Xanthomonas campestris KW - J 02880:Plant diseases KW - A 01027:Fruit trees UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16495468?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+and+Experimental+Botany&rft.atitle=Enzymatic+activities+of+citrus+leaves+from+plants+resistant+and+susceptible+to+citrus+bacterial+canker+disease.&rft.au=Jiao%2C+HJ%3BWang%2C+SY%3BCiverolo%2C+EL&rft.aulast=Jiao&rft.aufirst=HJ&rft.date=1992-01-01&rft.volume=32&rft.issue=4&rft.spage=465&rft.isbn=&rft.btitle=&rft.title=Environmental+and+Experimental+Botany&rft.issn=00988472&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - Xanthomonas campestris; Citrus; infection; leaves; enzymatic activity; canker; resistance; susceptibility ER - TY - JOUR T1 - Differential digestibilities of channel catfish, bluegill, and gizzard shad: In vitro standards for gastric digestion by seabirds. AN - 16494379; 2945726 AB - The author determined relative rates of digestion of three fish species in vitro by mimicking the gastric juices of piscivorous birds. Bluegill (Lepomis macrochirus ) were digested more slowly than Channel Catfish (Ictalurus punctatus ) and Gizzard Shad (Dorosoma cepedianum ). Digestion kinetics of Bluegill were linear; those of Channel Catfish and Gizzard Shad nonlinear. These digestibility data may be used to predict in vivo digestibility, to correct estimates of food habits of individuals in field studies where gut contents are sampled, or to estimate nutritional contribution of different fish to the diets of birds. JF - Colonial Waterbirds AU - Brugger, KE AD - USDA/APHIS Denver Wildl. Res. Cent., Florida Field Stn., 2820 E. University Ave., Gainesville, FL 32601, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 257 EP - 260 VL - 15 IS - 2 SN - 0738-6028, 0738-6028 KW - avifauna KW - comparative studies KW - comparison KW - food selection KW - freshwater fish KW - marine birds KW - marine fish KW - Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Marine KW - Dorosoma cepedianum KW - Ictalurus punctatus KW - Aves KW - digestibility KW - Lepomis macrochirus KW - D 04671:Birds KW - O 1050:Vertebrates, Urochordates and Cephalochordates KW - Q1 08366:Physiology, biochemistry, biophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16494379?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Colonial+Waterbirds&rft.atitle=Differential+digestibilities+of+channel+catfish%2C+bluegill%2C+and+gizzard+shad%3A+In+vitro+standards+for+gastric+digestion+by+seabirds.&rft.au=Brugger%2C+KE&rft.aulast=Brugger&rft.aufirst=KE&rft.date=1992-01-01&rft.volume=15&rft.issue=2&rft.spage=257&rft.isbn=&rft.btitle=&rft.title=Colonial+Waterbirds&rft.issn=07386028&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - comparative studies; freshwater fish; digestibility; marine birds; marine fish; food selection; avifauna; comparison; Aves; Dorosoma cepedianum; Lepomis macrochirus; Ictalurus punctatus; Marine ER - TY - JOUR T1 - Determination of nitroimidazole metabolites in swine and turkey muscle by liquid chromatography. AN - 16493410; 2944192 AB - The method described can determine hydroxy dimetridazole hydroxy ipronidazole in turkey and swine muscle tissue at levels of 2 ppb. After an initial extraction with ethyl acetate and subsequent evaporation, the samples are solvated in acid and back-extracted. A C sub(18) solid-phase extraction is performed after neutralization of the acidic extract. The basis for quantitation was an external standard containing both analytes. After performing 10 recovery curves with blank control tissue spiked at 0, 1, 2, and 4 ppb, the mean recoveries of hydroxy dimetridazole and hydroxy ipronidazole were 61.8 and 64.6%, respectively. Recovery variation was less than 20% for both analytes over all 10 curves. The performance of the extraction method was verified in tissues incurred through the dosing of live animals. JF - Journal of AOAC International AU - Mallinson, ET III AU - Henry, A C AU - Rowe, L AD - USDA, Food Saf. and Inspect. Serv., Midwest. Lab., Saint Louis, MO 63115, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 790 EP - 796 VL - 75 IS - 5 SN - 1060-3271, 1060-3271 KW - nitroimidazole KW - determination KW - methodology KW - meat KW - Health & Safety Science Abstracts; Toxicology Abstracts KW - liquid chromatography KW - metabolites KW - X 24120:Food, additives & contaminants KW - X 24222:Analytical procedures KW - H SE4.20:POISONS AND POISONING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16493410?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+AOAC+International&rft.atitle=Determination+of+nitroimidazole+metabolites+in+swine+and+turkey+muscle+by+liquid+chromatography.&rft.au=Mallinson%2C+ET+III%3BHenry%2C+A+C%3BRowe%2C+L&rft.aulast=Mallinson&rft.aufirst=ET&rft.date=1992-01-01&rft.volume=75&rft.issue=5&rft.spage=790&rft.isbn=&rft.btitle=&rft.title=Journal+of+AOAC+International&rft.issn=10603271&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - metabolites; liquid chromatography; determination; methodology; meat ER - TY - JOUR T1 - Suppression of house flies (Diptera: Muscidae) on New York and Maryland dairies using releases of Muscidifurax raptor (Hymenoptera: Pteromalidae) in an integrated management program. AN - 16484366; 2934175 AB - Releases of Muscidifurax raptor (Girault & Sanders) were integrated with weekly removal of calf bedding and infrequent use of pyrethrin space sprays for management of house flies, Musca domestica L., on seven dairy farms in New York and Maryland; six other farms were used as controls. Baited traps were used for supplemental outdoor fly control on release farms in Maryland. Parasitoid releases were made by weekly placement of either 25,000 (in New York) or 20,000 (in Maryland) parasitized house fly pupae in screen bags on each farm, resulting in weekly release rates of 12,000 and 9,600 female parasitoids per farm per week, respectively. Overall season-long fly pupal mortality (as measured by sentinel fly pupae) was 65 and 38% on release farms in New York and Maryland, respectively, compared with 30 and 26% on control farms. JF - Environmental Entomology AU - Geden, C J AU - Rutz, DA AU - Miller, R W AU - Steinkraus, D C AD - USDA-ARS, Med. and Vet. Entomol. Res. Lab., P.O. Box 14565, Gainesville, FL 32604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1419 EP - 1426 VL - 21 IS - 6 SN - 0046-225X, 0046-225X KW - Entomology Abstracts; Ecology Abstracts KW - Musca domestica KW - integrated control KW - pest control KW - Hymenoptera KW - USA, Maryland KW - Muscidifurax raptor KW - dairies KW - USA, New York KW - management KW - Diptera KW - Muscidae KW - Pteromalidae KW - Z 05206:Medical & veterinary entomology KW - D 04710:Control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16484366?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Suppression+of+house+flies+%28Diptera%3A+Muscidae%29+on+New+York+and+Maryland+dairies+using+releases+of+Muscidifurax+raptor+%28Hymenoptera%3A+Pteromalidae%29+in+an+integrated+management+program.&rft.au=Geden%2C+C+J%3BRutz%2C+DA%3BMiller%2C+R+W%3BSteinkraus%2C+D+C&rft.aulast=Geden&rft.aufirst=C&rft.date=1992-01-01&rft.volume=21&rft.issue=6&rft.spage=1419&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - Musca domestica; Muscidifurax raptor; Muscidae; Diptera; Pteromalidae; Hymenoptera; USA, New York; USA, Maryland; pest control; integrated control; management; dairies ER - TY - JOUR T1 - Geographical variation in alfalfa accessions for resistance to two isolates of Peronospora trifoliorum . AN - 16483772; 2937507 AB - We evaluated the resistance of 631 plant introduction accessions PIs of alfalfa (Medicago sativa L.) from 50 countries, to two isolates (I-7 and I-8) of Peronospora trifoliorum de Bary, causal fungus of alfalfa downy mildew. The objectives were to investigate the association of alfalfa subspecies, basic germplasm source, fall dormancy, and regions of origin, with levels of resistance to P. trifoliorum . Differences between mean percentages of resistance to the fungus isolates were tested for statistical significance with t-prime tests, or LSD tests, adjusted in accordance with Bonferroni's inequalities. Five M. sativa subspecies were included: falcata , x varia, sativa , x hemicycla , and caerulea . The mean proportions of plants resistant to one isolate were not significantly different from the proportions resistance to the other isolate within any subspecies. Hence, genetic ancestry of the plants apparently was unrelated to isolate-specific resistance. Mean percentages of resistant plants ranged from 26.8 (subsp. falcata ), to 6.3 (subsp. caerulea ). Subspecies sativa accessions averaged 15.4% resistant plants. Significant differences between isolates within individual accessions were found in 160 accessions. The PIs with significantly more plants resistant to I-7 than to I-8 were from South and Central America, the Mediterranean area, and Australia. Plant introductions with significantly more plants resistant to isolate I-8 than to I-7 were from northern Europe and North America. This isolate-specific resistance did not appear to be associated with the geographic centers of origin of the basic types of alfalfa germplasms. JF - Crop Science AU - Skinner, D Z AU - Stuteville, D L AD - USDA-ARS and Dep. Agron., Kansas State Univ., Manhattan, KS 66506, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1467 EP - 1470 VL - 32 IS - 6 SN - 0011-183X, 0011-183X KW - Peronospora trifoliorum KW - Genetics Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - disease resistance KW - inheritance KW - geographical variations KW - isolates KW - downy mildew KW - cultivars KW - Medicago sativa KW - A 01030:General KW - A 01025:Leguminous crops KW - G 07355:GENERAL) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16483772?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Geographical+variation+in+alfalfa+accessions+for+resistance+to+two+isolates+of+Peronospora+trifoliorum+.&rft.au=Skinner%2C+D+Z%3BStuteville%2C+D+L&rft.aulast=Skinner&rft.aufirst=D&rft.date=1992-01-01&rft.volume=32&rft.issue=6&rft.spage=1467&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Medicago sativa; downy mildew; cultivars; isolates; geographical variations; disease resistance; inheritance ER - TY - JOUR T1 - Biological control of Helicoverpa zea (Lepidoptera: Noctuidae) with Steinernema carpocapsae (Rhabditida: Steinernematidae) in corn used as a trap crop. AN - 16481890; 2934129 AB - The planting of corn borders as a trap crop for the melon fly, Bactrocera cucurbitae Coquillet, potentially could cause increased infestation rates of Helicoverpa zea (Boddie) in adjacent tomatoes. The potential of the entomopathogenic nematode Steinernema carpocapsae Weiser for control of H. zea in corn borders was explored in research conducted both in Oahu and Maui, HI. Field tests were conducted to determine the concentration response of H. zea to S. carpocapsae in Oahu. The most effective of the treatments tested were 4,000 and 40,000 nematodes per millimeter of water, causing 57.6 plus or minus 5.4 and 74.5 plus or minus 17.4% mortality, respectively, 6 d after treatment. In corn border trials with tomatoes, treated corn had 15 times fewer living H. zea larvae and 97% less damage to corn ears than in untreated corn. JF - Environmental Entomology AU - Purcell, M AU - Johnson, M W AU - Lebeck, L M AU - Hara, AH AD - USDA-ARS Trop. Fruit and Veg. Lab., P.O. Box 1330, Kappa, Kauai, HI 96746, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1441 EP - 1447 VL - 21 IS - 6 SN - 0046-225X, 0046-225X KW - Entomology Abstracts; Ecology Abstracts KW - biological control KW - Steinernema carpocapsae KW - treatment KW - planting KW - Helicoverpa zea KW - Lepidoptera KW - trapping KW - Zea mays KW - Noctuidae KW - Z 05207:Agricultural & general applied entomology KW - D 04710:Control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16481890?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Biological+control+of+Helicoverpa+zea+%28Lepidoptera%3A+Noctuidae%29+with+Steinernema+carpocapsae+%28Rhabditida%3A+Steinernematidae%29+in+corn+used+as+a+trap+crop.&rft.au=Purcell%2C+M%3BJohnson%2C+M+W%3BLebeck%2C+L+M%3BHara%2C+AH&rft.aulast=Purcell&rft.aufirst=M&rft.date=1992-01-01&rft.volume=21&rft.issue=6&rft.spage=1441&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - Zea mays; Helicoverpa zea; Noctuidae; Lepidoptera; Steinernema carpocapsae; biological control; trapping; treatment; planting ER - TY - JOUR T1 - Qualitative effects associated with red phosphorus smoke inhalation exposures in two wildlife species: Prairie dogs and rock doves. AN - 16478802; 2932536 AB - Effects of red phosphorus/butyl rubber (RP/BR) smoke on two wildlife species, prairie dogs and rock doves (pigeons), were evaluated in laboratory range-finding experiments. Prairie dogs exposed to either 2.0, 4.0, or 6.0 mg/L concentrations of smoke showed no mortality within 30 days after one to four 1-h exposure sessions. Rock doves exposed to either 3.0 or 6.0 mg/L concentrations over 1-4 sessions, hower, showed 26% mortality within 8 days postexposure. Male rock doves were much more vulnerable to RP/BR smoke effects, with 42% mortality, in contrast to 6% in the females. Assessments indicated affected or lost vocalization capability in both species, abnormal body postures in rock doves, and increased respiratory congestion in prairie dogs postexposure. Neither species showed definite, consistent effects in gross necropsy and histopathology assessments. Only a few of the rock doves in 6.0 mg/L groups showed signs of excess mucus or exudate in their nasal passages and larynges. JF - Inhalation Toxicology AU - Shumake, SA AU - Sterner, R T AU - Johns, B E AU - Thomson, R D AU - Bush, F AU - Crane, KA AU - Gaddis, SE AU - Church, G W AU - Jenny, AL AD - USDA/APHIS/S&T, Denver Wildl. Res. Cent., Build. 16, Fed. Cent., Denver, CO 80225-0266, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 411 EP - 431 VL - 4 IS - 4 SN - 0895-8378, 0895-8378 KW - red phosphorus smoke KW - Toxicology Abstracts KW - inhalation KW - toxicity KW - Cynomys ludovicianus KW - Columba livia KW - X 24240:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16478802?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Pollution&rft.atitle=Responses+of+microbial+populations+in+the+rhizosphere+to+deposition+of+simulated+acidic+rain+onto+foliage+and%2For+soil&rft.au=Shafer&rft.aulast=Shafer&rft.aufirst=&rft.date=1992-01-01&rft.volume=76&rft.issue=3&rft.spage=267&rft.isbn=&rft.btitle=&rft.title=Environmental+Pollution&rft.issn=02697491&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - Cynomys ludovicianus; Columba livia; inhalation; toxicity ER - TY - JOUR T1 - Experimental reintroduction of red-cockaded woodpeckers. AN - 16477324; 2930017 AB - The Red-cockaded Woodpecker (Picoides borealis ) is an endangered species endemic to the pine forests of the southeastern United States. Deforestation and habitat alteration have severely affected Red-cockaded Woodpecker populations; current populations are isolated and most are declining. The species has been extirpated from significant areas of suitable or potentially suitable habitat. Previous efforts to relocate Red-cockaded Woodpecker breeding pairs met with limited success. The recent improvements in cavity-construction techniques and experience in translocating individual birds convinced us that it was time to revisit the issue of the reintroduction of breeding pairs to vacant habitat. JF - Auk AU - Rudolph, C D AU - Conner, R N AU - Carrie, D K AU - Schaefer, R R AD - Wildl. Habit. and Silvic. Lab., South. Forest Exp. Stn., USDA Forest Serv., Nacogdoches, TX 75962, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 914 EP - 916 VL - 109 IS - 4 SN - 0004-8038, 0004-8038 KW - Ecology Abstracts KW - Picoides borealis KW - wildlife management KW - USA, Texas KW - reintroduction KW - D 04700:Management KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16477324?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Auk&rft.atitle=Experimental+reintroduction+of+red-cockaded+woodpeckers.&rft.au=Rudolph%2C+C+D%3BConner%2C+R+N%3BCarrie%2C+D+K%3BSchaefer%2C+R+R&rft.aulast=Rudolph&rft.aufirst=C&rft.date=1992-01-01&rft.volume=109&rft.issue=4&rft.spage=914&rft.isbn=&rft.btitle=&rft.title=Auk&rft.issn=00048038&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - Picoides borealis; USA, Texas; wildlife management; reintroduction ER - TY - JOUR T1 - Hydrolysis of orange peel with pectinase and cellulase enzymes. AN - 16469562; 2918702 AB - Hydrolysis of polysaccharides in comminuted orange peel by commercial cellulase and pectinase enzymes has been investigated. High levels of conversion to monomeric sugars were observed after treatment with pectinase enzyme, but cellulase enzyme achieved only limited solubilization. The combination of cellulase and pectinase enzymes appears to be a most efficient system for enzymatic hydrolysis of polysaccharides in orange peel. JF - Biotechnology Letters AU - Grohmann, K AU - Baldwin, E A AD - USDA, ARS, SAA Citrus and Subtrop. Prod. Lab., 600 Ave. S, NW, Winter Haven, FL 33883, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1169 EP - 1174 VL - 14 IS - 12 SN - 0141-5492, 0141-5492 KW - cellulase KW - orange peel KW - pectinase KW - polysaccharides KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts KW - Citrus sinensis KW - hydrolysis KW - W2 32350:Carbohydrates KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16469562?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biotechnology+Letters&rft.atitle=Hydrolysis+of+orange+peel+with+pectinase+and+cellulase+enzymes.&rft.au=Grohmann%2C+K%3BBaldwin%2C+E+A&rft.aulast=Grohmann&rft.aufirst=K&rft.date=1992-01-01&rft.volume=14&rft.issue=12&rft.spage=1169&rft.isbn=&rft.btitle=&rft.title=Biotechnology+Letters&rft.issn=01415492&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - hydrolysis; Citrus sinensis ER - TY - JOUR T1 - Occurrence of alginate gene sequences among members of the pseudomonad rRNA homology groups I-IV. AN - 16459980; 2925901 AB - Total genomic DNA of 13 pseudomonads representing rRNA homology groups I-IV were screened for sequences homologous to four Pseudomonas aeruginosa alginate (alg) genes by Southern hybridization. Biotinylated probes for three structural genes (algA, algC and algD) and one regulatory gene (algR1) were prepared. Genomic DNA of strains representing group I (P. syringae pv. glycinea, P. viridiflava and P. corrugata ) hybridized with all four gene probes. Hybridizing fragments were of differing sizes, indicating that evolutionary divergence among group I members has occurred. P. corrugata has not been reported to synthesize alginate. Genomic DNA from representatives of groups II-IV gave no or very weak hybridization with the probes except for algC. This study indicates that the ability to produce alginic acid as an exopolysaccharide among the pseudomonads is restricted to members of rRNA homology group I in agreement with earlier physiological studies. JF - FEMS Microbiology Letters AU - Fett, W F AU - Wijey, C AU - Lifson, E R AD - Plant Sci. Res. Unit, USDA, ARS, ERRC, 600 E. Mermaid Lane, Philadelphia, PA 19118, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 151 EP - 158 VL - 99 IS - 2-3 SN - 0378-1097, 0378-1097 KW - alginate KW - alginic acid KW - alg gene KW - Biochemistry Abstracts 2: Nucleic Acids; Genetics Abstracts; Microbiology Abstracts B: Bacteriology KW - genes KW - Pseudomonas KW - production KW - sequence KW - N 14510:Occurrence, isolation & assay KW - G 07320:Bacterial genetics KW - J 02740:Genetics and evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16459980?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=FEMS+Microbiology+Letters&rft.atitle=Occurrence+of+alginate+gene+sequences+among+members+of+the+pseudomonad+rRNA+homology+groups+I-IV.&rft.au=Fett%2C+W+F%3BWijey%2C+C%3BLifson%2C+E+R&rft.aulast=Fett&rft.aufirst=W&rft.date=1992-01-01&rft.volume=99&rft.issue=2-3&rft.spage=151&rft.isbn=&rft.btitle=&rft.title=FEMS+Microbiology+Letters&rft.issn=03781097&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pseudomonas; genes; sequence; production ER - TY - JOUR T1 - Enumeration and characterization of bacterial colonists of a submersed aquatic plant, Eurasian watermilfoil (Myriophyllum spicatum L.). AN - 16453094; 2920513 AB - A simple procedure for enumerating and grouping the bacterial colonists of Eurasian watermilfoil (Myriophyllum spicatum L.) is described. Colony characteristics of bacteria associated with M. spicatum were better defined and more stable on nutrient-poor, diluted nutrient broth agar than on high-nutrient media. Acinetobacter, Cytophaga, Flavobacterium, Moraxella, Pseudomonas and/or Alcaligenes , and Vibrio/Aeromonas spp., as well as two highly fastidious unidentified bacterial groups (gram-negative rods and gram-negative cocci), were associated with cultured watermilfoil during January, February, May, June, July, and August 1988. In Lake Wingra (Madison, Wis.), Micrococcus spp. and enterobacters were also associated with Eurasian watermilfoil during July, August, and October 1987. JF - Applied and Environmental Microbiology AU - Chand, T AU - Harris, R F AU - Andrews, J H AD - ARS-USDA, 45 Wiltshire Rd., Kearneysville, WV 25430-9802, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 3374 EP - 3379 VL - 58 IS - 10 SN - 0099-2240, 0099-2240 KW - USA, Wisconsin, Madison, Wingra L. KW - Microbiology Abstracts B: Bacteriology; ASFA 1: Biological Sciences & Living Resources KW - Myriophyllum spicatum KW - aquatic plants KW - Freshwater KW - colonization KW - population structure KW - bacteria KW - seasonal variations KW - population dynamics KW - Q1 08483:Species interactions: general KW - J 02905:Water UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16453094?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Enumeration+and+characterization+of+bacterial+colonists+of+a+submersed+aquatic+plant%2C+Eurasian+watermilfoil+%28Myriophyllum+spicatum+L.%29.&rft.au=Chand%2C+T%3BHarris%2C+R+F%3BAndrews%2C+J+H&rft.aulast=Chand&rft.aufirst=T&rft.date=1992-01-01&rft.volume=58&rft.issue=10&rft.spage=3374&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - population structure; bacteria; aquatic plants; seasonal variations; population dynamics; colonization; Myriophyllum spicatum; Freshwater ER - TY - JOUR T1 - Evidence for arsenic essentiality. AN - 16447053; 2911021 AB - Recent studies have suggested that arsenic has a physiological role that affects the formation of various metabolites of methionine metabolism including taurine an the polyamines. The concentration of plasma taurine is decreased in arsenic-deprived rats and hamsters. The hepatic concentration of polyamines and specific activity of an enzyme necessary for the synthesis of spermidine and spermine, S-adenosylmethionine decarboxylase, are also decreased in arsenic-deprived rats. Thus, evidence has been obtained which indicates that arsenic is of physiological importance, especially when methionine metabolism is stressed. Any possible nutritional requirement by humans can be estimated only by using data from animal studies. The arsenic requirement for growing chicks and rats has been suggested to be near 25 ng/g diet. Thus, a possible human requirement is 12 mu g/day. The reported arsenic content of diets from various parts of the world indicates that the average intake of arsenic is in the range of 12-40 mu g. Fish, grain and cereal products contribute most arsenic to the diet. JF - Environmental Geochemistry and Health AU - Uthus, E O AD - USDA-ARS, Grand Forks Hum. Nutr. Res. Cent. P.O. Box 7166, University Station, Grand Forks, ND 58202-7166, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 55 EP - 58 VL - 14 IS - 2 SN - 0269-4042, 0269-4042 KW - arsenic KW - methionine KW - humans KW - Toxicology Abstracts; Health & Safety Science Abstracts KW - metabolism KW - diets KW - nutrients KW - physiology KW - X 24120:Food, additives & contaminants KW - H SE4.8.6:DIET UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16447053?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Geochemistry+and+Health&rft.atitle=Occurrence+of+alginate+gene+sequences+among+members+of+the+pseudomonad+rRNA+homology+groups+I-IV.&rft.au=Fett%2C+W+F%3BWijey%2C+C%3BLifson%2C+E+R&rft.aulast=Fett&rft.aufirst=W&rft.date=1992-01-01&rft.volume=99&rft.issue=2-3&rft.spage=151&rft.isbn=&rft.btitle=&rft.title=FEMS+Microbiology+Letters&rft.issn=03781097&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Special issue: Arsenic. N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - arsenic; nutrients; physiology; diets; metabolism; humans ER - TY - JOUR T1 - A pathogenesis study of foot-and-mouth disease in cattle, using in situ hybridization. AN - 16435266; 2909041 AB - Eight calves were exposed in an aerosol chamber to nebulized foot-and-mouth disease virus. Animals were euthanized at intervals and various tissues examined by in situ hybridization using a biotinylated RNA probe corresponding to a portion of the viral gene coding for the polymerase enzyme. Large amounts of viral nucleic acid were found in coronary band, interdigital cleft and tongue as early as six hours postexposure, indicating a very rapid delivery from the portal of entry to the predilection sites for lesion development. This occurred well before the onset of viremia which by virus isolation was not detectable until 30 hours postexposure. The in situ hybridization signal in these tissues decreased in intensity and extent with time to focally positive areas, occasionally surrounding a vesicle. Other epidermal sites not normally thought of as sites for foot-and-mouth lesion development, such as carpus and eyelid, also had some viral nucleic acid detectable at various time intervals. In the lung by in situ hybridization, alveolar septa had viral nucleic acid early in infection (6-18 h postexposure) while later (36-96 h postexposure), the in situ hybridization signal was prominent in alveolar macrophages. JF - CAN. J. VET. RES./REV. CAN. RECH. VET. AU - Brown, C C AU - Meyer, R F AU - Olander, HJ AU - House, C AU - Mebus, CA AD - Foreign Anim. Dis. Lab., Natl. Vet. Serv. Lab., APHIS-USDA, P.O. Box 848, Greenport, NY 11944, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 189 EP - 193 VL - 56 IS - 3 KW - cattle KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Virology & AIDS Abstracts KW - foot-and-mouth disease virus KW - RNA KW - hybridization analysis KW - pathogenesis KW - foot-and-mouth disease KW - probes KW - W2 32410:Veterinary Medicine: Diagnosis KW - V 22142:Symptomatology, pathology & etiology KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16435266?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=CAN.+J.+VET.+RES.%2FREV.+CAN.+RECH.+VET.&rft.atitle=A+pathogenesis+study+of+foot-and-mouth+disease+in+cattle%2C+using+in+situ+hybridization.&rft.au=Brown%2C+C+C%3BMeyer%2C+R+F%3BOlander%2C+HJ%3BHouse%2C+C%3BMebus%2C+CA&rft.aulast=Brown&rft.aufirst=C&rft.date=1992-01-01&rft.volume=56&rft.issue=3&rft.spage=189&rft.isbn=&rft.btitle=&rft.title=CAN.+J.+VET.+RES.%2FREV.+CAN.+RECH.+VET.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - RNA; hybridization analysis; pathogenesis; probes; foot-and-mouth disease; foot-and-mouth disease virus ER - TY - JOUR T1 - Monophosphoryl lipid A-induced immune enhancement of Brucella abortus salt-extractable protein and lipopolysaccharide vaccines in BALB/c mice. AN - 16432161; 2906800 AB - A study was conducted to determine the effect of monophosphoryl lipid A (MPL) and trehalose dimycolate (TDM) as adjuvants on the protective responses in BALB/c mice vaccinated with Brucella abortus salt-extractable protein (BCSP) or proteinase-K treated B. abortus lipopolysaccharide (PKLPS). Mice were vaccinated with different doses of BCSP or PKLPS given alone or in combination with MPL or TDM. Mice were challenge-exposed 4 weeks later with virulent B. abortus strain 2308. Two weeks after challenge exposure, the number of B. abortus colony-forming units (CFU) per spleen, spleen weights, and spleen cell interleukin 1 production were measured. Serum IgG and IgM concentrations specific for vaccinal immunogens were measured before and after challenge exposure with B. abortus . JF - American Journal of Veterinary Research AU - Tabatabai, L B AU - Pugh, GW Jr AU - Stevens, M G AU - Phillips, M AU - McDonald, T J AD - USDA-ARS, Natl. Anim. Dis. Cent., P.O. Box 70, Ames, IA 50010, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1900 EP - 1907 VL - 53 IS - 10 SN - 0002-9645, 0002-9645 KW - lipid A KW - lipopolysaccharides KW - mice KW - monophosphoryl lipid A KW - Biotechnology and Bioengineering Abstracts; Immunology Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts B: Bacteriology KW - vaccines KW - immunological enhancement KW - Brucella abortus KW - brucellosis KW - J 02834:Vaccination and immunization KW - J 02862:Infection KW - F 06807:Active immunization KW - W2 32365:Vaccines KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16432161?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Journal+of+Veterinary+Research&rft.atitle=Monophosphoryl+lipid+A-induced+immune+enhancement+of+Brucella+abortus+salt-extractable+protein+and+lipopolysaccharide+vaccines+in+BALB%2Fc+mice.&rft.au=Tabatabai%2C+L+B%3BPugh%2C+GW+Jr%3BStevens%2C+M+G%3BPhillips%2C+M%3BMcDonald%2C+T+J&rft.aulast=Tabatabai&rft.aufirst=L&rft.date=1992-01-01&rft.volume=53&rft.issue=10&rft.spage=1900&rft.isbn=&rft.btitle=&rft.title=American+Journal+of+Veterinary+Research&rft.issn=00029645&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - vaccines; immunological enhancement; brucellosis; Brucella abortus ER - TY - JOUR T1 - Bacterial survival, lymph node changes, and immunologic response of cattle vaccinated with standard and mutant strains of Brucella abortus . AN - 16431989; 2906769 AB - Forty-eight cattle were used in 4 experiments; 6-week-old calves in experiments 1-3 (n = 24) and 10-month-old heifers in experiment 4 (n = 24). In experiments 1-3, 7 groups of 3 calves each were inoculated SC with 5 strains of Brucella abortus : virulent strain 2308 (2 groups), vaccine strain 19 (2 groups), and mutant strains RB51, 19 Delta 31K, and 19 Delta SOD. Sera and lymph node tissues were examined at 2-week intervals for evidence of infection. At postinoculation (PI) week 12, 2 calves in each group were given dexamethasone for 5 days. Calves were then euthanatized and lymphoid tissue, spleen, liver, and bone marrow were examined for evidence of B. abortus . JF - American Journal of Veterinary Research AU - Cheville, N F AU - Jensen, A E AU - Halling, S M AU - Tatum, F M AU - Morfitt, D C AU - Hennager, S G AU - Frerichs, WM AU - Schurig, G AD - Brucellosis Res. Unit, NADC-ARS, and Diag. Bacteriol. Lab., Anim. and Plant Health Insp. Serv., USDA, Ames, IA 50010, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1881 EP - 1888 VL - 53 IS - 10 SN - 0002-9645, 0002-9645 KW - cattle KW - Biotechnology and Bioengineering Abstracts; Immunology Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts B: Bacteriology KW - lymph nodes KW - Brucella abortus KW - strains KW - brucellosis KW - immune response KW - vaccination KW - mutants KW - J 02834:Vaccination and immunization KW - J 02862:Infection KW - F 06807:Active immunization KW - W2 32365:Vaccines KW - W2 32415:Veterinary Medicine: Therapy KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16431989?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Journal+of+Veterinary+Research&rft.atitle=Bacterial+survival%2C+lymph+node+changes%2C+and+immunologic+response+of+cattle+vaccinated+with+standard+and+mutant+strains+of+Brucella+abortus+.&rft.au=Cheville%2C+N+F%3BJensen%2C+A+E%3BHalling%2C+S+M%3BTatum%2C+F+M%3BMorfitt%2C+D+C%3BHennager%2C+S+G%3BFrerichs%2C+WM%3BSchurig%2C+G&rft.aulast=Cheville&rft.aufirst=N&rft.date=1992-01-01&rft.volume=53&rft.issue=10&rft.spage=1881&rft.isbn=&rft.btitle=&rft.title=American+Journal+of+Veterinary+Research&rft.issn=00029645&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - lymph nodes; brucellosis; strains; immune response; vaccination; mutants; Brucella abortus ER - TY - JOUR T1 - Carrier state of channel catfish infected with Edwardsiella ictaluri . AN - 16431147; 2902661 AB - Channel catfish Ictalurus punctatus that were naturally exposed to Edwardsiella ictaluri were acquired from a catfish farmer and transported to the laboratory. The 6-month-old channel catfish had a normal appearance without symptoms of enteric septicemia of catfish (ESC). For 5 d, one group of channel catfish was given feed containing the antibiotic Romet-30) (8 kg/tonne) at a daily rate of 1% (about 20 g/fish), and the other group received feed without medication. About one-third of the channel catfish in the untreated group developed clinical signs of ESC and died within 3 d after transportation to the laboratory; survivors were killed after 11 d because of their poor condition. The group of channel catfish treated with Romet-30 had no signs of ESC or deaths caused by ESC. The presence of E. ictaluri in the trunk kidney of treated channel catfish was demonstrated by a microscopic immunofluorescence method and selective enrichment culture at 90 and 270 d. The percentage of treated channel catfish positive for the presence of E. ictaluri increased from about 40 to 70% between 90 and 270 d. The percentage of treated channel catfish positive for antibodies against E. ictaluri increased from 44 to 82% between 30 and 270 d. Challenge infection of these fish with E. ictaluri showed that most were protected from ESC. The results show that healthy channel catfish exposed to E. ictaluri and subsequently treated with Romet-30 can be carriers of E. ictaluri and may serve as a reservoir of infection for fish susceptible to ESC. JF - Journal of Aquatic Animal Health AU - Klesius, PH AD - Fish Dis. and Parasites Res. Lab., ARS-USDA, PO Box 952, Auburn, AL 36830, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 227 EP - 230 VL - 4 IS - 3 SN - 0899-7659, 0899-7659 KW - bacterial diseases KW - carriers KW - enteric septicemia KW - fish culture KW - pathogenic bacteria KW - septicaemia KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Microbiology Abstracts B: Bacteriology; ASFA Aquaculture Abstracts KW - Edwardsiella ictaluri KW - epidemiology KW - Freshwater KW - Ictalurus punctatus KW - infectious diseases KW - immunology KW - J 02862:Infection KW - Q3 08582:Fish culture KW - Q1 08582:Fish culture UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16431147?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Aquatic+Animal+Health&rft.atitle=Carrier+state+of+channel+catfish+infected+with+Edwardsiella+ictaluri+.&rft.au=Klesius%2C+PH&rft.aulast=Klesius&rft.aufirst=PH&rft.date=1992-01-01&rft.volume=4&rft.issue=3&rft.spage=227&rft.isbn=&rft.btitle=&rft.title=Journal+of+Aquatic+Animal+Health&rft.issn=08997659&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - pathogenic bacteria; infectious diseases; immunology; septicaemia; fish culture; epidemiology; bacterial diseases; carriers; Edwardsiella ictaluri; Ictalurus punctatus; Freshwater ER - TY - JOUR T1 - Expression of Streptomyces sp. cholesterol oxidase in Lactobacillus casei . AN - 16428155; 2902637 AB - Three strains of Lactobacillus casei were electrotransformed with pNCO937, an 8.1-kb recombinant plasmid carrier of a Streptomyces sp. cholesterol oxidase gene. Transformation frequency was generally low and strain-dependent, ranging from 6 to 40 transformants/ mu g DNA. L. casei transformants stably maintained pNCO937 with no indication of deletion mutational events. Transformants produced active cholesterol oxidase and sonicated cells formed 4-cholesten-3-one from both free and lipoprotein-bound cholesterol. L. casei shows promise as a host suitable for studying heterologous gene expression in lactobacilli. JF - Applied Microbiology and Biotechnology AU - Somkuti, G A AU - Solaiman, DKY AU - Steinberg, D H AD - USDA-ARS, Eastern Reg. Res. Cent., 600 E. Mermaid Ln., Philadelphia, PA 19118, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 330 EP - 334 VL - 37 IS - 3 SN - 0175-7598, 0175-7598 KW - cholesterol oxidase KW - Biochemistry Abstracts 2: Nucleic Acids; Genetics Abstracts; Microbiology Abstracts B: Bacteriology KW - Lactobacillus casei KW - transformation KW - Streptomyces KW - gene expression KW - G 07320:Bacterial genetics KW - J 02728:Enzymes KW - N 14674:Transformation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16428155?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Florida+Scientist&rft.atitle=Survival+and+growth+of+stem+fragments+from+various+Hydrilla+races&rft.au=Steward%2C+K+K&rft.aulast=Steward&rft.aufirst=K&rft.date=1992-01-01&rft.volume=55&rft.issue=3&rft.spage=129&rft.isbn=&rft.btitle=&rft.title=Florida+Scientist&rft.issn=00984590&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Streptomyces; Lactobacillus casei; gene expression; transformation ER - TY - JOUR T1 - Identification of floral compounds of night-blooming jessamine attractive to cabbage looper moths. AN - 16427547; 2900319 AB - Collections of volatile chemicals emitted from flowers of night-blooming jessamine, Cestrum nocturnum L., yielded three principal chemicals; benzaldehyde, benzyl acetate, and phenylacetaldehyde. Female cabbage looper moths, Trichoplusia ni (Huebner), exhibited upwind oriented flight and contact with dispensers that released an artificial blend of synthetic compounds similar to the natural blend from jessamine flowers. Observed behaviors in response to phenylacetaldehyde alone were not significantly different from those to the complete blend, although moths also oriented to benzyl acetate. Based on these results, phenylacetaldehyde alone may provide optimum attraction of cabbage looper moths to the flowers and to artificial lures. The plants displayed a diel periodicity in the release of these compounds coincident with the diel pattern of feeding activity of cabbage looper moths. Moth feeding occurs principally at and immediately after dusk, and the production of the floral odor peaked in the first 2 h of the scotophase. JF - Environmental Entomology AU - Heath, R R AU - Landolt, P J AU - Dueben, B AU - Lenczewski, B AD - Insect Attract., Behav., and Basic Biol. Res. Lab., USDA-ARS, Gainesville, FL 32604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 854 EP - 859 VL - 21 IS - 4 SN - 0046-225X, 0046-225X KW - emission KW - feeding behaviour KW - Animal Behavior Abstracts; Entomology Abstracts; Ecology Abstracts; Chemoreception Abstracts KW - Lepidoptera KW - Cestrum nocturnum KW - Noctuidae KW - flowers KW - attractants KW - Trichoplusia ni KW - volatiles KW - diel periodicity KW - D 04659:Insects KW - Y 25693:Insects KW - Z 05175:Pheromones, repellents & attractants KW - R 18052:Feeding UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16427547?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Identification+of+floral+compounds+of+night-blooming+jessamine+attractive+to+cabbage+looper+moths.&rft.au=Heath%2C+R+R%3BLandolt%2C+P+J%3BDueben%2C+B%3BLenczewski%2C+B&rft.aulast=Heath&rft.aufirst=R&rft.date=1992-01-01&rft.volume=21&rft.issue=4&rft.spage=854&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Trichoplusia ni; Cestrum nocturnum; Noctuidae; Lepidoptera; attractants; volatiles; flowers; diel periodicity ER - TY - JOUR T1 - Effects of temperature and age on daily changes in pheromone titer in laboratory-reared and wild gypsy moth (Lepidoptera: Lymantriidae). AN - 16426468; 2900113 AB - Effects of temperature, age, and photoperiod on pheromone titer in the pheromone gland of gypsy moth, Lymantria dispar (L.), were studied with the aid of gas chromatography. In laboratory-reared females, daily rhythmic changes in pheromone content were observed with peaks occurring toward the evening and increasing in quantity with female age. In wild females held in outdoor cages under very hot afternoon conditions, maximum pheromone titer was observed in the early morning and minimum titer in the afternoon. However, pheromone-oriented flight activity of the wild males was lowest in the morning and highest in the afternoon. Temperatures of 33 and 35 degree C caused decline in pheromone titer to near zero in laboratory-reared and wild females, respectively. Calling behavior was not dependent on the presence of pheromone in the gland; it occurred in newly emerged females before pheromone could be detected and in females held at temperatures that inhibited pheromone production. JF - Environmental Entomology AU - Giebultowicz, J M AU - Webb, R E AU - Raina, A K AU - Ridgway, R L AD - Insect Neurobiol. and Hormone Lab., USDA-ARS, Beltsville, MD 20705, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 822 EP - 826 VL - 21 IS - 4 SN - 0046-225X, 0046-225X KW - temperature KW - effects on KW - Animal Behavior Abstracts; Entomology Abstracts; Ecology Abstracts; Chemoreception Abstracts KW - Lepidoptera KW - levels KW - age KW - flight activity KW - sex pheromone KW - Lymantria dispar KW - D 04659:Insects KW - Y 25653:Insects KW - R 18051:Reproductive behavior KW - Z 05179:Glands & secretions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16426468?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Effects+of+temperature+and+age+on+daily+changes+in+pheromone+titer+in+laboratory-reared+and+wild+gypsy+moth+%28Lepidoptera%3A+Lymantriidae%29.&rft.au=Giebultowicz%2C+J+M%3BWebb%2C+R+E%3BRaina%2C+A+K%3BRidgway%2C+R+L&rft.aulast=Giebultowicz&rft.aufirst=J&rft.date=1992-01-01&rft.volume=21&rft.issue=4&rft.spage=822&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lepidoptera; Lymantria dispar; age; sex pheromone; levels; flight activity ER - TY - JOUR T1 - The Anaplasma marginale msp5 gene encodes a 19-kilodalton protein conserved in all recognized Anaplasma species. AN - 16425832; 2905101 AB - Immunization with Anaplasma marginale outer membranes induced immunity against clinical disease which correlated with antibody titer to outer membrane proteins, including a 19-kDa protein. This 19-kDa protein, designated major surface protein 5 (MSP-5), was encoded by a single-copy 633-bp gene. The molecular mass of MSP-5, defined in immunoblots by binding to monoclonal antibody ANAF16C1, was conserved among all recognized species of Anaplasma : A. marginale, A. centrale , and A. ovis . Recombinant MSP-5, which absorbed the antibody reactivity of bovine immune serum to native MSP-5, was recognized by anti-A. marginale and anti-A. centrale immune sera in a competitive inhibition assay with monoclonal antibody ANAF16C1. The presence of antibody to the epitope defined by monoclonal antibody ANAF16C1 in all postinfection sera tested indicates that this epitope is a potential diagnostic antigen for use in identifying persistently infected cattle. JF - Infection and Immunity AU - Visser, E S AU - McGuire, T C AU - Palmer, G H AU - Davis, W C AU - Shkap, V AU - Pipano, E AU - Knowles, D P, Jr AD - Anim. Dis. Res. Unit, USDA-ARS, Service, Pullman, WA 99164-7030, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 5139 EP - 5144 VL - 60 IS - 12 SN - 0019-9567, 0019-9567 KW - msp5 gene KW - MSP-5 protein KW - Genetics Abstracts; Microbiology Abstracts B: Bacteriology KW - membrane proteins KW - genes KW - conservation KW - outer membranes KW - identification KW - Anaplasma marginale KW - G 07320:Bacterial genetics KW - J 02740:Genetics and evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16425832?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Infection+and+Immunity&rft.atitle=The+Anaplasma+marginale+msp5+gene+encodes+a+19-kilodalton+protein+conserved+in+all+recognized+Anaplasma+species.&rft.au=Visser%2C+E+S%3BMcGuire%2C+T+C%3BPalmer%2C+G+H%3BDavis%2C+W+C%3BShkap%2C+V%3BPipano%2C+E%3BKnowles%2C+D+P%2C+Jr&rft.aulast=Visser&rft.aufirst=E&rft.date=1992-01-01&rft.volume=60&rft.issue=12&rft.spage=5139&rft.isbn=&rft.btitle=&rft.title=Infection+and+Immunity&rft.issn=00199567&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Anaplasma marginale; genes; identification; conservation; membrane proteins; outer membranes ER - TY - JOUR T1 - Almond brown line and decline: A new disease probably caused by a mycoplasma-like organism. AN - 16425027; 2899724 AB - Young almond (Prunus dulcis , cvs Carmel, Peerless and Price) orchards established on the plum rootstock Marianna 2624 (P. cerasifera x P. munsoniana ) contained tress that exhibited poor terminal shoot growth and wilted, chlorotic leaves. The scion/rootstock graft union showed an external splitting of the bark and an internal line of necrotic bark tissues that extended into the woody cylinder of the union, which was deeply pitted. Affected trees declined. The disease was named almond brown line and decline (ABLD). Graft-inoculations on the almond scion portion of healthy trees, but not the plum rootstock portion, with the peach yellow leafroll mycoplasma-like organism (PYLR-MLO) caused symptoms resembling ABLD. Laboratory and glasshouse assays of several symptomatic trees did not detect tomato ringspot virus and two ilarviruses. These results suggest that an MLO, possibly PYLR-MLO, may be the causal agent of ABLD and that Marianna 2624 is probably resistant to the PYLR-MLO. JF - Annals of Applied Biology AU - Uyemoto, J K AU - Connell, J H AU - Hasey, J K AU - Luhn, C F AD - USDA-ARS, Dep. Plant Pathol., Univ. California, Davis, CA 95616, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 417 EP - 424 VL - 120 IS - 3 SN - 0003-4746, 0003-4746 KW - almond brown line and decline KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - Prunus dulcis KW - infection KW - mycoplasma-like organisms KW - J 02880:Plant diseases KW - A 01027:Fruit trees UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16425027?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annals+of+Applied+Biology&rft.atitle=Almond+brown+line+and+decline%3A+A+new+disease+probably+caused+by+a+mycoplasma-like+organism.&rft.au=Uyemoto%2C+J+K%3BConnell%2C+J+H%3BHasey%2C+J+K%3BLuhn%2C+C+F&rft.aulast=Uyemoto&rft.aufirst=J&rft.date=1992-01-01&rft.volume=120&rft.issue=3&rft.spage=417&rft.isbn=&rft.btitle=&rft.title=Annals+of+Applied+Biology&rft.issn=00034746&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Prunus dulcis; mycoplasma-like organisms; infection ER - TY - JOUR T1 - DNA structures contributing to the instability of recombinant plasmids in Streptococcus thermophilus . AN - 16422609; 2905212 AB - Bifunctional shuttle vector (pBN183) and recombinant plasmids (pDCO2 and pDCO3) carrying a Streptomyces cholesterol oxidase gene (choA) were deleted to varying degrees in Streptococcus thermophilus . Restriction mapping of the deleted plasmids led to the identification of deletion prone regions in the transforming DNAs. Sequence analysis revealed that direct repeats and hairpin structures occurred in these regions, suggesting that they are deleterious to the stability of plasmids in S. thermophilus . JF - Biotechnology Letters AU - Solaiman, DKY AU - Somkuti, G A AD - USDA-ARS, Eastern Reg. Res. Cent., 600 E. Mermaid Lane, Philadelphia, PA 19118, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 753 EP - 758 VL - 14 IS - 9 SN - 0141-5492, 0141-5492 KW - plasmid pBN183 KW - plasmid pDCO2 KW - plasmid pDCO3 KW - var.thermophilus KW - Biochemistry Abstracts 2: Nucleic Acids; Microbiology Abstracts B: Bacteriology KW - deletion KW - restriction endonuclease mapping KW - stability KW - plasmids KW - Streptococcus salivarius KW - N 14682:Cloning vectors KW - J 02760:Plasmids UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16422609?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biotechnology+Letters&rft.atitle=DNA+structures+contributing+to+the+instability+of+recombinant+plasmids+in+Streptococcus+thermophilus+.&rft.au=Solaiman%2C+DKY%3BSomkuti%2C+G+A&rft.aulast=Solaiman&rft.aufirst=DKY&rft.date=1992-01-01&rft.volume=14&rft.issue=9&rft.spage=753&rft.isbn=&rft.btitle=&rft.title=Biotechnology+Letters&rft.issn=01415492&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Streptococcus salivarius; plasmids; stability; restriction endonuclease mapping; deletion ER - TY - JOUR T1 - Ovine pulmonary surfactant induces killing of Pasteurella haemolytica, Escherichia coli , and Klebsiella pneumoniae by normal serum. AN - 16419813; 2905375 AB - Pulmonary surfactant has been shown to play an important role in bacterial clearance at the alveolar surface in the lung. This study describes a bactericidal mechanism in which ovine pulmonary surfactant induces killing of Pasteurella haemolytica by normal serum. To demonstrate killing, six bacterial species were incubated first with pulmonary surfactant for 60 min at 37 degree C and then with serum for an additional 60 min at 37 degree C. P. haemolytica type A1 strains 82-25 and L101, a P. haemolytica type 2 strain, Escherichia coli , and Klebsiella pneumoniae were susceptible and Pasteurella multocida, Serratia marcescens , and Pseudomonas aeruginosa were not susceptible to killing by ovine pulmonary surfactant and normal serum. No bacteria incubated with bovine pulmonary surfactant were killed by normal serum. Although the species origin of pulmonary surfactant was selective, the species origin of serum was not. P. haemolytica incubated with ovine pulmonary surfactant was killed by fetal calf serum, gnotobiotic calf serum, pooled normal sheep serum, pooled normal rabbit serum, and pooled guinea pig serum. Ultrastructurally, killed P. haemolytica suspensions contained dead cells and cells distorted with vacuoles between the cytoplasmic membrane and the cytoplasm. The mechanism of killing did not correlate with concentrations of complement or lysozyme or titers of residual antibody in either the pulmonary surfactant or the serum, and killing was reduced by preincubation of surfactant with P. haemolytica lipopolysaccharide. Preliminary characterization of both surfactant and serum implicate a low-molecular-weight proteinaceous component in the surfactant and serum albumin in the serum. This mechanism may help clear certain gram-negative bacteria from the lungs of sheep as a part of the pulmonary innate defense system. JF - Infection and Immunity AU - Brogden, KA AD - Respir. Dis. Res. Unit, Natl. Anim. Dis. Cent., ARS/USDA, Ames, IA 50010, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 5182 EP - 5189 VL - 60 IS - 12 SN - 0019-9567, 0019-9567 KW - effects on KW - sheep KW - Microbiology Abstracts B: Bacteriology KW - lung KW - Pasteurella haemolytica KW - surfactants KW - Escherichia coli KW - serum bactericidal activity KW - Klebsiella pneumoniae KW - J 02862:Infection KW - J 02833:Immune response and immune mechanisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16419813?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Infection+and+Immunity&rft.atitle=Ovine+pulmonary+surfactant+induces+killing+of+Pasteurella+haemolytica%2C+Escherichia+coli+%2C+and+Klebsiella+pneumoniae+by+normal+serum.&rft.au=Brogden%2C+KA&rft.aulast=Brogden&rft.aufirst=KA&rft.date=1992-01-01&rft.volume=60&rft.issue=12&rft.spage=5182&rft.isbn=&rft.btitle=&rft.title=Infection+and+Immunity&rft.issn=00199567&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pasteurella haemolytica; Escherichia coli; Klebsiella pneumoniae; serum bactericidal activity; lung; surfactants ER - TY - JOUR T1 - Gypsy moth invasion in North America: A quantitative analysis. AN - 16417956; 2901696 AB - The gypsy moth, Lymantria dispar (L.), was accidentally introduced to North America in 1868 or 1869. Since that time, the range of this insect has spread to include most of the northeastern states in the US and eastern provinces of Canada. We compiled historical records of gypsy moth invasion in North America and assembled these data in a geographical information system (GIS). Data indicated that three distinct periods occurred during which spread rates differed: a a high rate (9.45 km/year) from 1900 to 1915, a low rate (2.82 km/year) from 1916 to 1965, and a very high rate (20.78 km/year) from 1966 to 1990. Furthermore, expansion was slower (7.61 km/year) during the period of 1966-1990 in counties where the mean minimum temperature was less than 7 degree (C). The rate of range expansion was independently calculated as 2.5 km/year from estimates of r, the intrinsic rate of increase, and D, the diffusion coefficient (dispersal magnitude) and a simple spread model. JF - Journal of Biogeography AU - Liebhold, AM AU - Halverson, JA AU - Elmes, G A AD - Northeast. Forest Exp. Stn., USDA Forest Serv., 180 Canfield St., Morgantown, WV 26505, SUA Y1 - 1992 PY - 1992 DA - 1992 SP - 513 EP - 520 VL - 19 IS - 5 SN - 0305-0270, 0305-0270 KW - Ecology Abstracts; Entomology Abstracts KW - North America KW - quantitation KW - Lepidoptera KW - Lymantriidae KW - population establishment KW - invasions KW - pest attack KW - Lymantria dispar KW - Z 05204:Dispersal & migration KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16417956?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Biogeography&rft.atitle=Gypsy+moth+invasion+in+North+America%3A+A+quantitative+analysis.&rft.au=Liebhold%2C+AM%3BHalverson%2C+JA%3BElmes%2C+G+A&rft.aulast=Liebhold&rft.aufirst=AM&rft.date=1992-01-01&rft.volume=51&rft.issue=1-4&rft.spage=5&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lymantria dispar; Lymantriidae; Lepidoptera; North America; quantitation; pest attack; invasions; population establishment ER - TY - JOUR T1 - Effect of weather variable on methyl parathion disappearance from cotton foliage. AN - 16416620; 2897870 AB - Foliar persistence times of insecticide residues affect the insecticides efficacy, its potential for pollution of nontarget areas, and worker reentry times. Information concerning pesticide foliar persistence is needed to develop and improve models that predict the environmental fate of applied pesticides. Weather factors reported to affect the rate of pesticide disappearance from foliage include rain, wind, temperature, sunlight, and relative humidity (Willis and McDowell, 1987). Rain has the most dramatic effect on residues, especially if it occurs within 24 h after pesticide application. The effects of weather variables on pesticide persistence on plants has been studied extensively by Nigg and coworkers in Florida citrus (Nigg et al., 1977a, 1977b, 1978, 1979; Nigg and Allen, 1979; Nigg and Stamper, 1980). The importance of one variable over the others in being a better predictor of pesticide disappearance from foliage usually depends on the prevailing environmental conditions during individual studies. JF - Bulletin of Environmental Contamination and Toxicology AU - Willis, G H AU - McDowell, L L AU - Smith, S AU - Southwick, L M AD - USDA-ARS, Soil and Water Res. Unit, P.O. Box 25071, University Station, Baton Rouge, LA 70894-5071, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 394 EP - 400 VL - 48 IS - 3 SN - 0007-4861, 0007-4861 KW - methyl parathion KW - fate KW - Pollution Abstracts KW - insecticides KW - plants KW - meteorology KW - Gossypium hirsutum KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16416620?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+Environmental+Contamination+and+Toxicology&rft.atitle=Effect+of+weather+variable+on+methyl+parathion+disappearance+from+cotton+foliage.&rft.au=Willis%2C+G+H%3BMcDowell%2C+L+L%3BSmith%2C+S%3BSouthwick%2C+L+M&rft.aulast=Willis&rft.aufirst=G&rft.date=1992-01-01&rft.volume=48&rft.issue=3&rft.spage=394&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+Environmental+Contamination+and+Toxicology&rft.issn=00074861&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - Gossypium hirsutum; insecticides; meteorology; plants ER - TY - JOUR T1 - Fermentation of xylans by Butyrivibrio fibrisolvens and Thermoanaerobacter strains B6A: Utilization of uronic acids and xylanolytic activities. AN - 16406603; 2889801 AB - Butyrivibrio fibrisolvens and Thermoanaerobacter strain B6A are xylanolytic anaerobes isolated from rumen and geothermal sources respectively. Both organisms fermented larchwood xylan, oatspelt xylan, or 4-O-methylglucuronoaxylan, extensively utilizing both the monosaccharide (glucose, xylose, arabinose) and uronic acid components. Citrus pectin or polygalacturonate also supported growth of both organisms, but only B. fibrisolvens was able to use the monomers glucuronate or galacturonate as the sole added energy source. Strain B6A was able to utilize these two uronic acids when glucose, xylose, arabinose, or oatspelt xylan was also provided as a second energy source. Xylanase, xylosidase, and arabinofuranosidase activities were found to be produced by strain B6A, but the levels and distribution (cell bound vs. culture fluid) were influenced by growth substrate. JF - Current Microbiology AU - Hespell, R B AD - Ferment. Biochem. Res., Natl. Cent. Agric. Util. Res., USDA, 1815 University St., Peoria, IL 61604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 189 EP - 195 VL - 25 IS - 4 SN - 0343-8651, 0343-8651 KW - xylan KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - cellulolytic enzymes KW - fermentation KW - Butyrivibrio fibrisolvens KW - Thermoanaerobacter KW - A 01006:Enzymes & cofactors KW - J 02728:Enzymes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16406603?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Current+Microbiology&rft.atitle=Fermentation+of+xylans+by+Butyrivibrio+fibrisolvens+and+Thermoanaerobacter+strains+B6A%3A+Utilization+of+uronic+acids+and+xylanolytic+activities.&rft.au=Hespell%2C+R+B&rft.aulast=Hespell&rft.aufirst=R&rft.date=1992-01-01&rft.volume=25&rft.issue=4&rft.spage=189&rft.isbn=&rft.btitle=&rft.title=Current+Microbiology&rft.issn=03438651&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - Butyrivibrio fibrisolvens; Thermoanaerobacter; fermentation; cellulolytic enzymes ER - TY - JOUR T1 - Enzymatic characterization of subcellular samples from gypsy moth larval midgut following differential centrifugation and fractionation on Percoll-sucrose gradient. AN - 16405147; 2891729 AB - A method is described for isolation of an enriched fraction of plasma membranes from gypsy moth (Lymantria dispar ) larval midgut tissue. Following differential centrifugation of tissue homogenate, a microsomal sample is obtained and fractionated on a Percoll)-sucrose gradient that yields 2 distinct regions of high protein concentration: one enriched in plasma membranes, the other in mitochondrial membranes. The procedure is relatively rapid, being completed within approximately 5 h. Protein yields and accompanying specific activities are reported for marker enzymes used to indicate the presence of plasma membranes (leucine aminopeptidase and alkaline phosphatase), endoplasmic reticulum (NADPH-cytochrome c reductase), and mitochondria (succinate dehydrogenase). The apparent differences between the plasma membrane enriched fraction vs. brush border membrane vesicles prepared from insect midguts are discussed, as is the suitability of the plasma membrane enriched fraction for ATP-dependent calcium ion transport studies. JF - Archives of Insect Biochemistry and Physiology AU - Sheppard, CA AU - Loeb, MJ AD - USDA-ARS, Insect Biocontrol Lab., Build. 011A, Rm. 214, BARC-W., Beltsville, MD 20705-2350, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 195 EP - 205 VL - 21 IS - 3 SN - 0739-4462, 0739-4462 KW - Lymantria dispar KW - enzymatic activity KW - isolation KW - larvae KW - midgut KW - plasma membranes KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Entomology Abstracts KW - Z 05173:Biochemistry & metabolism (incl. fat body) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16405147?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Archives+of+Insect+Biochemistry+and+Physiology&rft.atitle=Enzymatic+characterization+of+subcellular+samples+from+gypsy+moth+larval+midgut+following+differential+centrifugation+and+fractionation+on+Percoll-sucrose+gradient.&rft.au=Sheppard%2C+CA%3BLoeb%2C+MJ&rft.aulast=Sheppard&rft.aufirst=CA&rft.date=1992-01-01&rft.volume=21&rft.issue=3&rft.spage=195&rft.isbn=&rft.btitle=&rft.title=Archives+of+Insect+Biochemistry+and+Physiology&rft.issn=07394462&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - larvae; isolation; plasma membranes; enzymatic activity; midgut ER - TY - JOUR T1 - Tropical forests as sinks of atmospheric carbon. AN - 16402951; 2891476 AB - Changes in land use and rates of carbon accumulation by land use including mature, logged, and fallow tropical forests, and degraded tropical lands are used to estimate the role that the tropical landscape serves as sinks of atmospheric carbon. Results indicate that in 1980 tropical lands may remove between 1.5 and 3.2 Pg C from the atmosphere. We excluded from the analysis some 900 million ha of open tropical forests that could also be removing carbon from the atmosphere and an additional 0.5-0.6 Pg C year super(-1) sink associated with carbon export by rivers and in wood products. Our analysis challenges assumptions about the steady-state condition of the carbon budget of mature tropical forests and suggests that large areas of the tropical landscape are recovering from disturbance and act as atmospheric carbon sinks. We focus attention on sinks of atmospheric carbon only. In 1980, the estimated accumulation of carbon in the recovering landscape was equal to the net carbon flux due to tropical deforestation. JF - Forest Ecology and Management AU - Lugo, A E AU - Brown, S AD - Inst. Trop. For., USDA Forest Serv. Southern Forest Exp. Stn., Call Box 25000, Rio Piedras, PR 00928-2500, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 239 EP - 255 VL - 54 IS - 1-4 SN - 0378-1127, 0378-1127 KW - carbon sinks KW - carbon KW - Ecology Abstracts KW - forests KW - tropical environment KW - atmospheric conditions KW - reduction KW - D 04126:Tropical forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16402951?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Tropical+forests+as+sinks+of+atmospheric+carbon.&rft.au=Lugo%2C+A+E%3BBrown%2C+S&rft.aulast=Lugo&rft.aufirst=A&rft.date=1992-01-01&rft.volume=54&rft.issue=1-4&rft.spage=239&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - atmospheric conditions; tropical environment; forests; reduction ER - TY - JOUR T1 - COP1, an Arabidopsis regulatory gene, encodes a protein with both a zinc-binding motif and a G sub( beta ) homologous domain. AN - 16394513; 2876215 AB - Plant seedling development is capable of following 1 of 2 distinct morphogenic pathways: Skotomorphogenesis in darkness and photomorphogenesis in light. Dark-grown Arabidopsis seedlings with recessive mutations at the constitutively photomorphogenic (COP1) locus indicate that the wild-type COP1 protein represses photomorphogenesis in darkness and that light reverses this repressive activity. Using a T-DNA-tagged mutant, we have cloned the COP1 locus. The amino-terminal half of the encoded protein contains a conserved zinc-binding motif, whereas the carboxyl-terminal half contains a domain homologous to the WD-40 repeat motif of G sub( beta ) proteins. The presence of both a putative DNA-binding motif and a G protein-related domain in a single polypeptide suggests that COP1 may be the first of a new class of regulatory molecules. JF - Cell AU - Deng, Xing-Wang AU - Matsui, M AU - Wei, Ning AU - Wagner, D AU - Chu, A M AU - Feldmann, KA AU - Quail, PH AD - Univ. California, Berkeley, USDA Plant Gene, Expression Cent., 800 Buchanan St., Albany, CA 94710, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 791 EP - 801 VL - 71 IS - 5 SN - 0092-8674, 0092-8674 KW - Arabidopsis KW - COP1 gene KW - genes KW - guanine nucleotide-binding protein KW - nucleotide sequence KW - zinc finger KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Genetics Abstracts; Biochemistry Abstracts 2: Nucleic Acids KW - N 14640:Structure & sequence KW - G 07355:GENERAL) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16394513?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Tropical+forest+biomass+estimation+from+truncated+stand+tables.&rft.au=Gillespie%2C+AJR%3BBrown%2C+S%3BLugo%2C+A+E&rft.aulast=Gillespie&rft.aufirst=AJR&rft.date=1992-01-01&rft.volume=48&rft.issue=1-2&rft.spage=69&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - nucleotide sequence; genes ER - TY - JOUR T1 - Sensitive detection and identification of mycoplasma-like organisms in plants by polymerase chain reactions. AN - 16394219; 2882834 AB - DNA amplification by polymerase chain reactions (PCR) was employed to detect host plant infection by several mycoplasma-like organisms (MLOs), including the aster yellows (AY), dwarf aster yellows (DAY), and periwinkle little leaf (O-1) MLOs. For PCR, two pairs of oligonucleotide primers, designated AY18pm and AY10pm, respectively, were synthesized on the basis of partial sequences of cloned AY MLO DNA fragments AY18 and AY10. Reaction mixtures containing primer pair AY18pm yielded a DNA product of 1.6 Kbp, when template consisted of DNA extracted from AY MLO- or DAY MLO-infected Catharanthus roseus (periwinkle). A DNA product of 1.0 Kbp was obtained with primer pair AY19pm, when template consisted of DNA extracted from C. roseus infected by AYMLO, DAY MLO, or periwinkle little leaf (strain O-1) MLO. MLO-specific bands were observed when reaction mixtures contained as little as 5 pg total nucleic acid from infected plants. No PCR product was observed when reaction mixtures contained only DNA from healthy plants or DNA from plants infected by western X MLO or by tomato big bud MLO. The findings indicated that the PCR system is useful for sensitive detection and differentiation of MLOs in infected hosts. JF - Biochemical and Biophysical Research Communications AU - Schaff, D AU - Lee, Ing-Ming AU - Davis, R E AD - Microbiol. and Plant Pathol. Lab., ARS-USDA, Beltsville, MD 20705, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1503 EP - 1509 VL - 186 IS - 3 SN - 0006-291X, 0006-291X KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts B: Bacteriology; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Catharanthus roseus KW - detection KW - mycoplasma-like organisms KW - polymerase chain reaction KW - A 01028:Others KW - J 02710:Identification, taxonomy and typing KW - W2 32425:Plant Diseases: Diagnosis KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16394219?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Relations+between+activity+of+Dendroctonus+rufipennis+Kirby+on+Lutz+spruce+and+blue+stain+associated+with+Leptographium+abietinum+%28Peck%29+Wingfield.&rft.au=Reynolds%2C+K+M&rft.aulast=Reynolds&rft.aufirst=K&rft.date=1992-01-01&rft.volume=47&rft.issue=1-4&rft.spage=71&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - detection; mycoplasma-like organisms; polymerase chain reaction; Catharanthus roseus ER - TY - JOUR T1 - Insect cuticle-degrading enzymes from the entomogenous fungus Beauveria bassiana . AN - 16392438; 2865951 AB - Beauveria bassiana is a promising agent for biological control of agricultural insect pests. Its broad host range includes both the Greater Wax Moth (Galleria mellonella ) and the cabbage looper (Trichoplusia ni ). Five strains of B. bassiana from the Agricultural Research Service Culture Collection were obtained and grown on defined media and a medium containing purified cuticle from either G. mellonella or T. ni . The production of cuticle-degrading enzymes (such as proteases, chitinases, and esterase) was examined. Natural strain variability in enzyme levels was significant, and there was no evidence of coordinated expression. Further, enzyme expression differed considerably as a function of cuticle source. The results suggest that it may be possible to tailor biological control agents against specific targets. Natural strain variability could be used to rationally develop improved mycoinsecticides. JF - Fungal Genetics and Biology AU - Gupta, S C AU - Leathers, T D AU - El-Sayed, G N AU - Ignoffo, C M AD - Biol. Control Infects Lab., USDA, ARS, Columbia, MO 65205, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 132 EP - 137 VL - 16 IS - 2 SN - 0147-5975, 0147-5975 KW - Biotechnology and Bioengineering Abstracts; Entomology Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Pyralidae KW - Trichoplusia ni KW - cuticles KW - Beauveria bassiana KW - degradation KW - biological control KW - enzymes KW - Lepidoptera KW - Noctuidae KW - Galleria mellonella KW - entomopathogenic fungi KW - Insecta KW - A 01006:Enzymes & cofactors KW - K 03020:Fungi KW - Z 05182:Pathology KW - W2 32445:Pest control KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16392438?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Fungal+Genetics+and+Biology&rft.atitle=Insect+cuticle-degrading+enzymes+from+the+entomogenous+fungus+Beauveria+bassiana+.&rft.au=Gupta%2C+S+C%3BLeathers%2C+T+D%3BEl-Sayed%2C+G+N%3BIgnoffo%2C+C+M&rft.aulast=Gupta&rft.aufirst=S&rft.date=1992-01-01&rft.volume=16&rft.issue=2&rft.spage=132&rft.isbn=&rft.btitle=&rft.title=Fungal+Genetics+and+Biology&rft.issn=01475975&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - cuticles; biological control; degradation; enzymes; entomopathogenic fungi; Pyralidae; Trichoplusia ni; Beauveria bassiana; Noctuidae; Galleria mellonella; Lepidoptera; Insecta ER - TY - JOUR T1 - Purification and characterization of wheat alpha -gliadin synthesized in the yeast, Saccharomyces cerevisiae . AN - 16392425; 2874075 AB - The development of efficient methods for production and purification of plant seed storage proteins in heterologous microbial hosts would facilitate structure-function studies of these proteins. This report describes such methods applied to the production and isolation of wheat alpha -gliadin, a prolamine-type seed storage protein, from Saccharomyces cerevisiae . The alpha -gliadin isolated from yeast elutes at the same position in HPLC as the A-gliadin fraction purified from wheat flour. N-terminal amino acid (aa) sequencing reveals that the signal peptide is removed from the gliadin precursor in yeast cells. About two-third of the molecules have the same N terminus as A-gliadin made in wheat endosperm cells. The remaining third of the alpha -gliadin is apparently cleaved at a similar processing site three aa closer to the N terminus of the prepeptide. JF - Gene AU - Blechl, A E AU - Thrasher, K S AU - Vensel, W H AU - Greene, F C AD - USDA-ARS, Western Reg. Res. Cent., 800 Buchanan St., Albany, CA 94710, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 119 EP - 127 VL - 116 IS - 2 SN - 0378-1119, 0378-1119 KW - Saccharomyces cerevisiae KW - Triticum aestivum KW - alpha -gliadin KW - characterization KW - purification KW - synthesis KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - K 03025:Fungi KW - W2 32340:Other peptides, proteins, amino acids KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16392425?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Gene&rft.atitle=Purification+and+characterization+of+wheat+alpha+-gliadin+synthesized+in+the+yeast%2C+Saccharomyces+cerevisiae+.&rft.au=Blechl%2C+A+E%3BThrasher%2C+K+S%3BVensel%2C+W+H%3BGreene%2C+F+C&rft.aulast=Blechl&rft.aufirst=A&rft.date=1992-01-01&rft.volume=116&rft.issue=2&rft.spage=119&rft.isbn=&rft.btitle=&rft.title=Gene&rft.issn=03781119&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - characterization; purification; synthesis ER - TY - JOUR T1 - Pathogenicity of porcine enterotoxigenic Escherichia coli that do not express K88, K99, F41, or 987P adhesins. AN - 16387519; 2879738 AB - Three-week-old weaned and colostrum-deprived neonatal (< 1 day old) pigs were inoculated to determine the pathogenicity of 2 enterotoxigenic Escherichia coli isolates that do not express K88, K99, F41, or 987P adhesins (strains 2134 and 2171). Strains 2134 and 2171 were isolated from pigs that had diarrhea after weaning attributable to enterotoxigenic E. coli infection. We found that both strains of E. coli adhered in the ileum and caused diarrhea in pigs of both age groups. Indirect immunofluorescence with these absorbed antisera revealed adherent bacteria in frozen sections of ileum from pigs infected with either strain. We concluded that these strains are pathogenic and express a common surface antigen that may be a novel adhesin in E. coli strains that cause diarrhea in weaned pigs. JF - American Journal of Veterinary Research AU - Casey, T A AU - Nagy, B AU - Moon, H W AD - Physiopathol. Res. Unit, Natl. Anim. Dis. Cent., USDA-ARS, P.O. Bxo 70, Ames, IA 50010, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1488 EP - 1492 VL - 53 IS - 9 SN - 0002-9645, 0002-9645 KW - adhesins KW - pigs KW - Toxicology Abstracts; Microbiology Abstracts B: Bacteriology KW - expression KW - Escherichia coli KW - pathogenicity KW - J 02862:Infection KW - X 24171:Microbial UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16387519?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Differences+in+Monterey+pine+pest+populations+in+urban+and+natural+forests.&rft.au=Nowak%2C+D+J%3BMcBride%2C+J+R&rft.aulast=Nowak&rft.aufirst=D&rft.date=1992-01-01&rft.volume=50&rft.issue=1-2&rft.spage=133&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Escherichia coli; pathogenicity; expression ER - TY - JOUR T1 - Spatial characteristics and effects of fall density and weather on overwintering loss of pear psylla (Homoptera: Psyllidae). AN - 16386947; 2872170 AB - Overwintering loss of pear psylla, Cacopsylla pyricola Foerster, in the Yakima area of Washington and the Medford area of Oregon, was estimated as the difference between the peak beat tray count obtained in fall and the peak count obtained the following spring. Thirty five orchards were sampled over 13 yr at Yakima, and 12 orchards were sampled for 10 yr at Medford. Overwintering loss increased linearly with peak fall counts. Loss coefficients were greater than or equal to 0.90 in three of four regions at Yakima and in all 12 orchards at Medford. Peak spring counts were independent of peak fall counts in three of four regions at Yakima and at 6 of 12 orchards at Medford. At Yakima, peak spring count was positively correlated with November precipitation and negatively correlated with November and January temperature; overwintering loss increased with increasing January temperature and decreased with increasing November precipitation. JF - Environmental Entomology AU - Horton AU - Higbee, B S AU - Unruh, T R AU - Westigard, PH AD - USDA-ARS, 3706 W. Nob Hill Blvd., Yakima, WA 98902, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1319 EP - 1332 VL - 21 IS - 6 SN - 0046-225X, 0046-225X KW - effects on KW - Entomology Abstracts; Ecology Abstracts KW - population density KW - population decline KW - Psyllidae KW - spatial distribution KW - overwintering KW - weather KW - Homoptera KW - Cacopsylla pyricola KW - Z 05205:Populations & general ecology KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16386947?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Spatial+characteristics+and+effects+of+fall+density+and+weather+on+overwintering+loss+of+pear+psylla+%28Homoptera%3A+Psyllidae%29.&rft.au=Horton%3BHigbee%2C+B+S%3BUnruh%2C+T+R%3BWestigard%2C+PH&rft.aulast=Horton&rft.aufirst=&rft.date=1992-01-01&rft.volume=21&rft.issue=6&rft.spage=1319&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Cacopsylla pyricola; Psyllidae; Homoptera; overwintering; weather; spatial distribution; population density; population decline ER - TY - JOUR T1 - Coyote coexistence with wolves on the Kenai Peninsula, Alaska. AN - 16386863; 2881009 AB - Coyote food habits, home range, and interactions with wolves were examined on the Kenai Peninsula, Alaska (1976-1980), to determine mechanisms of competition between the two species. Scat analyses (percent frequency occurrence) indicated coyotes relied primarily on snowshoe hare, porcupine, and small mammals. Coyote home range overlapped those of wolves and averaged 104.0 plus or minus 44.6 (SE) and 70.2 plus or minus 10.4 km super(2) for males and females, respectively. The ratio of coyotes to wolves captured on public roads was 10:1, while the ratio on roads closed to vehicles access was 0.71:1. Eight instances of wolves killing coyotes are reported. Lack of or minimal exploitation competition appears to allow coexistence of wolves and coyotes, while interference competition is believed to account for the difference in canid abundance near the two road types. JF - Canadian Journal of Zoology/Revue Canadienne de Zoologie AU - Thurber, J M AU - Peterson, RO AU - Woolington, J D AU - Vucetich, JA AD - USDA For. Serv., 801 Adams St., Iron River, MI 49935, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 2494 EP - 2498 VL - 70 IS - 12 SN - 0008-4301, 0008-4301 KW - aggressive behaviour KW - Animal Behavior Abstracts; Ecology Abstracts KW - home range KW - coexistence KW - USA, Alaska, Kenai Peninsula KW - Canis latrans KW - interspecific relationships KW - Canis lupus KW - Y 25537:Mammals (excluding primates) KW - D 04672:Mammals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16386863?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Zoology%2FRevue+Canadienne+de+Zoologie&rft.atitle=Coyote+coexistence+with+wolves+on+the+Kenai+Peninsula%2C+Alaska.&rft.au=Thurber%2C+J+M%3BPeterson%2C+RO%3BWoolington%2C+J+D%3BVucetich%2C+JA&rft.aulast=Thurber&rft.aufirst=J&rft.date=1992-01-01&rft.volume=70&rft.issue=12&rft.spage=2494&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Zoology%2FRevue+Canadienne+de+Zoologie&rft.issn=00084301&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Canis lupus; Canis latrans; USA, Alaska, Kenai Peninsula; interspecific relationships; home range; coexistence ER - TY - JOUR T1 - Epizootiological investigation of an outbreak of pullorum disease in an integrated broiler operation. AN - 16386114; 2880614 AB - An integrated broiler company experienced a major outbreak of pullorum disease during 1990. The outbreak resulted in the distribution of Salmonella pullorum infected birds to more than 150 roaster flocks in five states. Twenty-two parent (multiplier) breeder flocks became infected. An epizootiological investigation uncovered a grandparent male line breeder flock as the index flock supplying males to the affected parent flocks. Transmission apparently occurred vertically through the egg and horizontally by contact in the hatcheries and by placement of chicks on contaminated litter. JF - Avian Diseases AU - Johnson, D C AU - David, M AU - Goldsmith, S AD - USDA, Anim. and Plant Health Insp. Serv., Vet. Serv., 1000 Iris Dr., Suite G, Conyers, GA 30207, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 770 EP - 775 VL - 36 IS - 3 SN - 0005-2086, 0005-2086 KW - chickens KW - Microbiology Abstracts B: Bacteriology KW - infection KW - outbreaks KW - pullorum disease KW - Salmonella pullorum KW - J 02862:Infection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16386114?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+Diseases&rft.atitle=Epizootiological+investigation+of+an+outbreak+of+pullorum+disease+in+an+integrated+broiler+operation.&rft.au=Johnson%2C+D+C%3BDavid%2C+M%3BGoldsmith%2C+S&rft.aulast=Johnson&rft.aufirst=D&rft.date=1992-01-01&rft.volume=36&rft.issue=3&rft.spage=770&rft.isbn=&rft.btitle=&rft.title=Avian+Diseases&rft.issn=00052086&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Salmonella pullorum; pullorum disease; infection; outbreaks ER - TY - JOUR T1 - Occurrence of Salmonella enteritidis in the U.S. commercial egg industry: Report on a national spent hen survey. AN - 16385885; 2880812 AB - In order to estimate the prevalence and distribution of Salmonella enteritidis in U.S. commercial egg-production flocks, a survey of spent laying hens was conducted over a 3-month period. Seven of the 10 largest spent-hen processing plants in the United States participated. Ceca were sampled twice weekly from birds presented for slaughter at these plants. Samples were cultured for Salmonella and S. enteritidis , and S. enteritidis isolates were phage-typed. Overall, 23,431 pooled cecal samples were collected from a total of 405 layer houses. Salmonella (any serotype) and S. enteritidis were recovered from 24% and 3% of the pooled samples, respectively. The distribution of S. enteritidis phage types was consistent with data reported by others. JF - Avian Diseases AU - Ebel, ED AU - David, MJ AU - Mason, J AD - USDA, Anim. and Plant Health Insp. Serv., Vet. Serv., 6525 Belcrest Rd., Rm. 205, Hyattsville, MD 20782, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 646 EP - 654 VL - 36 IS - 3 SN - 0005-2086, 0005-2086 KW - incidence KW - egg production KW - food industry KW - chickens KW - Health & Safety Science Abstracts; Microbiology Abstracts B: Bacteriology KW - USA KW - Salmonella enteritidis KW - J 02862:Infection KW - H SE2.21:FARM ANIMAL DISEASES UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16385885?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Fire+regimes+for+pine-grassland+communities+in+the+southeastern+United+States.&rft.au=Waldrop%2C+T+A%3BWhite%2C+D+L%3BJones%2C+S+M&rft.aulast=Waldrop&rft.aufirst=T&rft.date=1992-01-01&rft.volume=47&rft.issue=1-4&rft.spage=195&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Salmonella enteritidis; USA; incidence; egg production; food industry ER - TY - CONF T1 - Evaluating changes in forest condition potentially related to acidic deposition: An example using red spruce. AN - 16385511; 2872183 AB - To develop an expectation of change in radial growth in the absence of high levels of acidic deposition, radial growth chronologies of red spruce (Picea rubens Sarg.) from forest survey data in northern Maine were analyzed. The entire radial growth chronology was analyzed for possible influences of disturbance events and stand development. Two periods of large growth reductions are evident over the past 60 years. In the early 1930s, a trend of decreased radial growth was preceded by growth increases in the 1920s. The 1920s increase resulted from the release of understory trees and recovery of surviving trees, following a severe budworm epidemic. Likewise, a trend of decreased radial growth after 1960 was preceded by a growth increase in the 1940s. Release of the red spruce trees in the 1940s is believed in part to be the result of a regional birch decline that began in the mid-1930s. JF - Forest Ecology and Management AU - Reams, G A AU - Peterson, CE Jr Y1 - 1992 PY - 1992 DA - 1992 SP - 5 EP - 16 VL - 51 IS - 1-4 KW - stand structure KW - Pollution Abstracts; Ecology Abstracts KW - forests KW - growth rate KW - acid deposition KW - Picea rubens KW - mortality KW - USA, Maine KW - pollution effects KW - D 04635:Conifers KW - D 04803:Pollution effects KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16385511?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Evaluating+changes+in+forest+condition+potentially+related+to+acidic+deposition%3A+An+example+using+red+spruce.&rft.au=Reams%2C+G+A%3BPeterson%2C+CE+Jr&rft.aulast=Reams&rft.aufirst=G&rft.date=1992-01-01&rft.volume=51&rft.issue=1-4&rft.spage=5&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Microbiological and histopathological effects of an induced-molt fasting procedure on a Salmonella enteritidis infection in chickens. AN - 16384084; 2880577 AB - A study was undertaken to determine if a 2-week feed-removal protocol, as is used by industry to induce a molt in aging hens, would affect the course of a Salmonella enteritidis infection. Histological examination of the intestinal tract of S. enteritidis -infected molted hens showed increased inflammation in the epithelium and lamina propria of colons and ceca, compared with unmolted infected hens. JF - Avian Diseases AU - Holt, P S AU - Porter, RE Jr AD - USDA-ARS, Southeast Poultry Res. Lab., 934 College Station Rd., Athens, GA 30605, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 610 EP - 618 VL - 36 IS - 3 SN - 0005-2086, 0005-2086 KW - chickens KW - Microbiology Abstracts B: Bacteriology KW - infection KW - moulting KW - Salmonella enteritidis KW - J 02862:Infection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16384084?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+Diseases&rft.atitle=Microbiological+and+histopathological+effects+of+an+induced-molt+fasting+procedure+on+a+Salmonella+enteritidis+infection+in+chickens.&rft.au=Holt%2C+P+S%3BPorter%2C+RE+Jr&rft.aulast=Holt&rft.aufirst=P&rft.date=1992-01-01&rft.volume=48&rft.issue=3-4&rft.spage=233&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Salmonella enteritidis; infection; moulting ER - TY - JOUR T1 - Distribution and frequency of a gene for resistance to white pine blister rust in natural populations of sugar pine. AN - 16383837; 2878991 AB - The gametic frequency of a dominant allele (R) for resistance to white pine blister rust, a disease caused by an introduced pathogen (Cronartium ribicola ), in natural populations of sugar pine was estimated by the kind of leaf symptom expressed after artificial inoculation of wind-pollinated seedlings from susceptible seed-parent genotypes (rr). Gene frequency increased clinally from near 0 in the southern Cascade Range to 0.08 in the southern Sierra Nevada, but it was not correlated with any major climatic gradient. Because R expresses a typical hypersensitivity response to pathogenesis, it has probably always functioned in disease resistance. A candidate pathogen for this function is C. occidentale , cause of pinyon blister rust, and a close relative of C. ribicola . Increase in allele frequency was positively associated with the proximity of sugar pine to single-leaf pinyon pine populations. Although sugar pine is not presently a natural host of pinyon rust, R may be a relict gene that protected sugar pine from this endemic pathogen in recent geologic epochs, when both pines are known to have been more intimately associated. JF - Canadian Journal of Botany/Revue Canadien de Botanique AU - Kinloch, BB Jr AD - Inst. Forest Genet., Pac. Southwest Res. Stn., USDA Forest Serv., Box 245, Berkeley, CA 94701, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1319 EP - 1323 VL - 70 IS - 7 SN - 0008-4026, 0008-4026 KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - disease resistance KW - Pinus lambertiana KW - Cronartium ribicola KW - genes KW - resistance KW - frequency KW - blister rust KW - distribution KW - K 03089:Fungi: plant KW - A 01030:General KW - W 30965:Miscellaneous, Reviews KW - W2 32430:Plant Diseases: Control and resistance UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16383837?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Botany%2FRevue+Canadien+de+Botanique&rft.atitle=Distribution+and+frequency+of+a+gene+for+resistance+to+white+pine+blister+rust+in+natural+populations+of+sugar+pine.&rft.au=Kinloch%2C+BB+Jr&rft.aulast=Kinloch&rft.aufirst=BB&rft.date=1992-01-01&rft.volume=70&rft.issue=7&rft.spage=1319&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Botany%2FRevue+Canadien+de+Botanique&rft.issn=00084026&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - disease resistance; genes; resistance; frequency; blister rust; distribution; Pinus lambertiana; Cronartium ribicola ER - TY - JOUR T1 - Helicoverpa zea (Lepidoptera: Noctuidae) pupa production in fruiting corn in northeast Mexico and south Texas. AN - 16382503; 2864142 AB - Populations of corn earworm, Helicoverpa zea (Boddie), pupae produced in approximately equals 200,000 ha of corn growing in the Lower Rio Grande Valley of northeast Tamaulipas Mexico and south Texas were estimated. Pupae were excavated from two soil samples (1 m super(2)) in 90-120 cornfields each year between 1985 and 1988 following larval development on ear-stage corn. Mean plant populations in the fields ranged from 5.6 per meter of row in 1987 to 6.8 per meter of row in 1986, while ear infestation by H. zea) larvae ranged from 76.9% in 1987 to 93.6% in 1986. The total number of corn earworm prepupae, pupae, and exuviae excavated ranged from an average 1.1 insects per square meter in 1987 to 3.8 insects per square meter in 1985. Correlation analysis indicated that only 58% of the variation in the number of corn earworm excavated from the 1-m super(2) soil samples was correlated with the variation in the number of infested plants per meter of row. JF - Environmental Entomology AU - Raulston, J R AU - Pair, S D AU - Loera, J AU - Sparks, AN AU - Wolf, W W AU - Westbrook, J K AU - Fitt, G P AU - Rogers, CE AD - USDA-ARS-SPA, Subtrop. Cotton Insects Res. Unit, 2413 E. Hwy. 83, Weslaco, TX 78596, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1393 EP - 1397 VL - 21 IS - 6 SN - 0046-225X, 0046-225X KW - Mexico, Northeast KW - Entomology Abstracts; Ecology Abstracts KW - migration KW - population levels KW - pupae KW - Helicoverpa zea KW - production KW - Lepidoptera KW - USA, Texas KW - Noctuidae KW - Z 05205:Populations & general ecology KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16382503?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Helicoverpa+zea+%28Lepidoptera%3A+Noctuidae%29+pupa+production+in+fruiting+corn+in+northeast+Mexico+and+south+Texas.&rft.au=Raulston%2C+J+R%3BPair%2C+S+D%3BLoera%2C+J%3BSparks%2C+AN%3BWolf%2C+W+W%3BWestbrook%2C+J+K%3BFitt%2C+G+P%3BRogers%2C+CE&rft.aulast=Raulston&rft.aufirst=J&rft.date=1992-01-01&rft.volume=21&rft.issue=6&rft.spage=1393&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Helicoverpa zea; Noctuidae; Lepidoptera; USA, Texas; migration; production; population levels; pupae ER - TY - JOUR T1 - Biology of Tricrania stansburyi , a meloid beetle cleptoparasite of the bee Osmia lignaria propinqua (Hymenoptera: Megachilidae). AN - 16376808; 2865875 AB - A life-cycle chronology of Tricrania stansburyi (Haldeman) developed from results obtained in this study demonstrates that this meloid species is univoltine, individuals mate more than once as they emerge from host nests, dispersal is accomplished by flight, adults apparently do not feed and are short-lived (1-2 wk), fecundity is high (>900 eggs per female), parasitism is accomplished through phoresy by the first instar (triungulin), meloid larvae develop through seven instars, the entire host cell provision is consumed by the first instars (sixth and seventh instars do not feed), and only one meloid larva survives multiple parasitism of any host cell. Results were also obtained on courtship, mating, sex ratio (female-biased), preferred egg deposition sites, new host records (7 species), preferential discrimination of triungulins to various host species, function of silken strands produced by triungulins, environmental triggers that initiate combat between triungulins, and biological traits that influence annual rates of parasitism by T. stansburyi . JF - Annals of the Entomological Society of America AU - Torchio, P F AU - Bosch, J AD - Bee Biol. and Syst. Lab., USDA-ARS, Utah State Univ., Logan, UT 84332-5310, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 713 EP - 721 VL - 85 IS - 6 SN - 0013-8746, 0013-8746 KW - Osmia lignaria propinqua KW - Animal Behavior Abstracts; Entomology Abstracts; Ecology Abstracts KW - development KW - Tricrania stansburyi KW - Megachilidae KW - Hymenoptera KW - Meloidae KW - Coleoptera KW - life cycle KW - kleptoparasitism KW - Y 25533:Insects KW - Z 05201:Parasitism: entomophagous KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16376808?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annals+of+the+Entomological+Society+of+America&rft.atitle=Biology+of+Tricrania+stansburyi+%2C+a+meloid+beetle+cleptoparasite+of+the+bee+Osmia+lignaria+propinqua+%28Hymenoptera%3A+Megachilidae%29.&rft.au=Torchio%2C+P+F%3BBosch%2C+J&rft.aulast=Torchio&rft.aufirst=P&rft.date=1992-01-01&rft.volume=85&rft.issue=6&rft.spage=713&rft.isbn=&rft.btitle=&rft.title=Annals+of+the+Entomological+Society+of+America&rft.issn=00138746&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Tricrania stansburyi; Meloidae; Coleoptera; Megachilidae; Hymenoptera; life cycle; development; kleptoparasitism ER - TY - CONF T1 - Impacts of acidic deposition on high-elevation spruce-fir forests: Results from the Spruce-Fir Research Cooperative. AN - 16375677; 2863156 AB - In the northeastern US, spruce-fir forests are experiencing visible decline, with large numbers of standing dead trees (> 50% on some mountains). Results from a number of research projects suggest red spruce is particularly sensitive to winter injury, that cloudwater inputs increase that susceptibility, and that repeated winter injury may play a role in red spruce decline in the northeastern US. Increased rates of dark respiration, reduced photosynthesis, and reduced foliar chlorophyll levels have been measured for red spruce, at sites receiving high cloudwater deposition in the southern Appalachians relative to trees receiving lower deposition, and these physiological changes may be contributing to reduced growth of red spruce saplings. Effects of acid anion deposition on soil aluminum levels could have important implications for soil and tissue cation levels. The relative role of the particular mechanisms associated with acidic deposition may with natural biotic and abiotic factors. JF - Forest Ecology and Management AU - Adams, M B AU - Eagar, C Y1 - 1992 PY - 1992 DA - 1992 SP - 195 EP - 205 VL - 51 IS - 1-4 KW - montane environments KW - cold tolerance KW - environmental factors KW - Pollution Abstracts; Ecology Abstracts KW - forests KW - Abies KW - acid deposition KW - Picea KW - D 04635:Conifers KW - D 04803:Pollution effects KW - P 5000:LAND POLLUTION KW - D 04125:Temperate forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16375677?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Impacts+of+acidic+deposition+on+high-elevation+spruce-fir+forests%3A+Results+from+the+Spruce-Fir+Research+Cooperative.&rft.au=Adams%2C+M+B%3BEagar%2C+C&rft.aulast=Adams&rft.aufirst=M&rft.date=1992-01-01&rft.volume=51&rft.issue=1-4&rft.spage=195&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Summer habitat use by Columbian sharp-tailed grouse in western Idaho. AN - 16374790; 2864831 AB - We studied summer habitat use by Columbian Sharp-tailed Grouse (Tympanuchus phasianellus columbianus ) in western Idaho during 1983-85. Vegetative and topographic measurements were recorded at 716 locations of 15 radio-tagged grouse and at 180 random sites within the major vegetation/cover types in the study area. The mean size of summer home ranges was 1.87 plus or minus 1.14 km super(2). Of eight cover types identified in the study area, individual grouse used the big sagebrush (Artemisia tridentata)) cover type more than or in proportion to availability, the low sagebrush (A. arbuscula ) type in proportion to availability, and avoided the shrubby eriogonum (Eriogonum spp.) type. Characteristics of the big sagebrush cover type that Sharp-tailed Grouse preferred include moderate vegetative cover, high plant species diversity, and high structural diversity. Grouse used areas of dense cover (i.e., mountain shrub and riparian cover types) primarily for escape cover. JF - Great Basin Naturalist AU - Saab, V A AU - Marks, J S AD - USDA For. Serv., Intermountain Res. Stn., 316 E. Myrtle St., Boise, ID 83702, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 166 EP - 173 VL - 52 IS - 2 SN - 0017-3614, 0017-3614 KW - Ecology Abstracts KW - USA, Idaho KW - Tympanuchus phasianellus columbianus KW - summer KW - habitat utilization KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16374790?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Great+Basin+Naturalist&rft.atitle=Summer+habitat+use+by+Columbian+sharp-tailed+grouse+in+western+Idaho.&rft.au=Saab%2C+V+A%3BMarks%2C+J+S&rft.aulast=Saab&rft.aufirst=V&rft.date=1992-01-01&rft.volume=16&rft.issue=2&rft.spage=132&rft.isbn=&rft.btitle=&rft.title=Fungal+Genetics+and+Biology&rft.issn=01475975&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - Tympanuchus phasianellus columbianus; USA, Idaho; habitat utilization; summer ER - TY - JOUR T1 - Stratification of habitats for identifying habitat selection by Merriam's turkeys. AN - 16374448; 2864964 AB - Habitat selection patterns of Merriam's Turkeys were compared in hierarchical analyses of three levels of habitat stratification. Habitat descriptions in first-level analyses were based on dominant species of vegetation. Habitat descriptions in second-level analyses were based on dominant species of vegetation and overstory canopy cover. Habitat descriptions in third-level analyses were based on dominant species of vegetation, overstory canopy cover, and structural stages (dbh categories). First-level analyses showed turkeys selected for ponderosa pine and selected against meadow habitats. No conclusions could be drawn regarding forest management on habitat selection of turkeys at this level of habitat stratification. Second-level analyses showed that selection of ponderosa pine and aspen/birch habitats varied among seasons. Implications for forest management activities on turkeys at this level of habitat stratification could be made. Third-level analyses added little to conclusions of habitat selection patterns drawn from second-level analyses and increased chances for Type II errors. Habitat selection patterns of Merriam's Turkeys were best described when habitats were stratified by dominant species of vegetation and overstory canopy cover. JF - Great Basin Naturalist AU - Rumble, MA AU - Anderson, SH AD - USDA Forest Serv., 501 F. St. Joseph St., South Dakota Sch. Mines, Rapid City, SD 57701, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 139 EP - 144 VL - 52 IS - 2 SN - 0017-3614, 0017-3614 KW - Ecology Abstracts KW - USA, South Dakota KW - forest management KW - vegetation patterns KW - stratification KW - identification KW - habitat selection KW - statistical analysis KW - Meleagris gallopavo merriami KW - D 04671:Birds KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16374448?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Great+Basin+Naturalist&rft.atitle=Stratification+of+habitats+for+identifying+habitat+selection+by+Merriam%27s+turkeys.&rft.au=Rumble%2C+MA%3BAnderson%2C+SH&rft.aulast=Rumble&rft.aufirst=MA&rft.date=1992-01-01&rft.volume=52&rft.issue=2&rft.spage=139&rft.isbn=&rft.btitle=&rft.title=Great+Basin+Naturalist&rft.issn=00173614&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Meleagris gallopavo merriami; USA, South Dakota; habitat selection; stratification; vegetation patterns; forest management; identification; statistical analysis ER - TY - JOUR T1 - Effects of sediment transport on survival of salmonid embryos in a natural stream: A simulation approach. AN - 16372319; 2869649 AB - A model is presented that simulates the effects of streamflow and sediment transport on survival of salmonid embryos incubating in spawning gravels in a natural channel. Components of the model include a 6-yr streamflow record, an empirical bedload-transport function, a relation between transport and infiltration of sandy bedload into a gravel bed, effects of fine-sediment infiltration on gravel properties, and functions relating embryo survival to gravel properties. High-flow events drive temporal variations in survival; cross-channel variations in bedload transport cause spatial variations. Expected survival, as a result, varies widely from year to year and between spawning runs in a single year. Alternative functions from previous research that relate survival to fine-sediment concentration in spawning gravel and to intergravel rates of flow yield categorically different results. The relative uncertainty of the components of this model indicates that the greatest research needs are to understand how sediment transport affects the intergravel environment and how these changes affect embryo development and survival. JF - Canadian Journal of Fisheries and Aquatic Sciences AU - Lisle, TE AU - Lewis, J AD - USDA Forest Serv., Pacific Southwest Res. Stn., 1700 Bayview Dr., Arcata, CA 95521, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 2337 EP - 2344 VL - 49 IS - 11 SN - 0706-652X, 0706-652X KW - Ecology Abstracts KW - models KW - embryos KW - sediments KW - streams KW - survival KW - Salmonidae KW - D 04003:Modeling, mathematics, computer applications KW - D 04668:Fish UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16372319?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences&rft.atitle=Effects+of+sediment+transport+on+survival+of+salmonid+embryos+in+a+natural+stream%3A+A+simulation+approach.&rft.au=Lisle%2C+TE%3BLewis%2C+J&rft.aulast=Lisle&rft.aufirst=TE&rft.date=1992-01-01&rft.volume=49&rft.issue=11&rft.spage=2337&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences&rft.issn=0706652X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - Salmonidae; models; sediments; survival; embryos; streams ER - TY - JOUR T1 - Identification and analysis of a genomic strain cluster of mycoplasmalike organisms associated with Canadian peach (eastern) X disease, western X disease, and clover yellow edge. AN - 16370051; 2861270 AB - Genetic interrelatedness among 13 strains of mycoplasmalike organisms (MLOs) from various sources was evaluated by dot hybridization and restriction fragment length polymorphism analyses using cloned DNA probes derived from Canadian peach X (CX) and western X (WX) MLOs. Dot hybridization analysis indicated that CX, WX, and clover yellow edge MLOs are closely related and form a distinct strain cluster that is only distantly related to the 10 other MLOs. Similarity coefficients derived from restriction fragment length polymorphism analysis revealed that CX, WX, and clover yellow edge MLOs represent three distinct genomic types. JF - Journal of Bacteriology AU - Lee, I-M AU - Gunderden, DE AU - Davis, R E AU - Chiykowski, L N AD - Microbiol. and Plant Pathol. Lab., USDA Agric. Res. Serv., Beltsville, MD 20705, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 6694 EP - 6698 VL - 174 IS - 20 SN - 0021-9193, 0021-9193 KW - peach X disease KW - clover yellow edge KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - western X disease KW - X disease KW - hybridization analysis KW - restriction fragment length polymorphism KW - identification KW - Trifolium KW - mycoplasma-like organisms KW - Prunus persica KW - J 02880:Plant diseases KW - A 01027:Fruit trees KW - A 01025:Leguminous crops UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16370051?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Bacteriology&rft.atitle=Identification+and+analysis+of+a+genomic+strain+cluster+of+mycoplasmalike+organisms+associated+with+Canadian+peach+%28eastern%29+X+disease%2C+western+X+disease%2C+and+clover+yellow+edge.&rft.au=Lee%2C+I-M%3BGunderden%2C+DE%3BDavis%2C+R+E%3BChiykowski%2C+L+N&rft.aulast=Lee&rft.aufirst=I-M&rft.date=1992-01-01&rft.volume=174&rft.issue=20&rft.spage=6694&rft.isbn=&rft.btitle=&rft.title=Journal+of+Bacteriology&rft.issn=00219193&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Prunus persica; Trifolium; mycoplasma-like organisms; identification; hybridization analysis; western X disease; restriction fragment length polymorphism; X disease ER - TY - JOUR T1 - Absence of genotoxicity of potato alkaloids alpha -chaconine, alpha -solanine and solanidine in the Ames Salmonella and adult and foetal erythrocyte micronucleus assays. AN - 16368243; 2861752 AB - To assess whether reported toxicities of potato-derived glycoalkaloids could be the result of interactions with cellular DNA, the genotoxic effects of alpha -solanine, alpha -chaconine and solanidine were studied, using the Ames test (Salmonella strains TA98 and TA100), the mouse peripheral blood micronucleus test and the mouse transplacental micronucleus test. The Ames test for mutagenicity with alpha -solanine was weakly positive in TA100 with S-9 activation (29 revertants per millimole per plate). However, pooled data from duplicate tests gave a negative effect. Pooled data from two experiments with alpha -chaconine gave a weak positive response in TA98 without microsomes (17 revertants per millimole per plate). The micronucleus tests for clastogenicity using male mouse and foetal blood were negative. The absence of mutagenicity and clastogenicity suggests lack of damage to intracellular DNA for potato alkaloid toxicity. JF - Food and Chemical Toxicology AU - Friedman, M AU - Henika, PR AD - Food Safety Res. Unit, USDA - ARS Western Reg. Res. Cent., 800 Buchanan St., Albany, CA 94710, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 689 EP - 694 VL - 30 IS - 8 SN - 0278-6915, 0278-6915 KW - alpha -chaconine KW - alpha -solanine KW - solanidine KW - Toxicology Abstracts KW - Solanum tuberosum KW - genotoxicity KW - Ames test KW - micronuclei KW - X 24120:Food, additives & contaminants KW - X 24172:Plants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16368243?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Food+and+Chemical+Toxicology&rft.atitle=Absence+of+genotoxicity+of+potato+alkaloids+alpha+-chaconine%2C+alpha+-solanine+and+solanidine+in+the+Ames+Salmonella+and+adult+and+foetal+erythrocyte+micronucleus+assays.&rft.au=Friedman%2C+M%3BHenika%2C+PR&rft.aulast=Friedman&rft.aufirst=M&rft.date=1992-01-01&rft.volume=30&rft.issue=8&rft.spage=689&rft.isbn=&rft.btitle=&rft.title=Food+and+Chemical+Toxicology&rft.issn=02786915&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Solanum tuberosum; genotoxicity; Ames test; micronuclei ER - TY - JOUR T1 - Use of concanavalin A in the purification of juvenile hormone esterase from the hemolymph and the fat body of Lymantria dispar . AN - 16367048; 2854349 AB - A new method for the purification of juvenile hormone esterase (JHE) exploits the ability of Sepharose-coupled concanavalin A to bind to glycoproteins. Preparation of homogeneous esterase from the plasma of the gypsy moth, Lymantria dispar , was accomplished by a procedure employing polyethylene glycol (PEG) precipitation. Superose-12 gel filtration, concanavalin A-Sepharose affinity chromatography and mono-Q FPLC. The 62 kDa plasma glycoprotein was purified 1325-fold by the four-step procedure with an 8% recovery of the original activity. A specific activity of 2650 nmol of juvenile hormone III (JH III) hydrolyzed per min per mg of protein at 28 degree C was determined for the purified enzyme. Concanavalin A-Sepharose chromatography also was used in the partial purification of JHE from the last stadium fat body of gypsy moth larvae. Western blots showed that the fat body enzyme was similar in size to JHE purified from the plasma. JF - Insect Biochemistry and Molecular Biology AU - Valaitis, A AD - USDA, For. Serv., Northeast. For. Exp. Stn., 359 Main Rd., Delaware, OH 43015, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 639 EP - 648 VL - 22 IS - 7 SN - 0965-1748, 0965-1748 KW - Lepidoptera KW - Lymantria dispar KW - Lymantriidae KW - body KW - concanavalin A KW - haemolymph KW - juvenile-hormone esterase KW - purification KW - use KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Entomology Abstracts KW - Z 05173:Biochemistry & metabolism (incl. fat body) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16367048?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Insect+Biochemistry+and+Molecular+Biology&rft.atitle=Use+of+concanavalin+A+in+the+purification+of+juvenile+hormone+esterase+from+the+hemolymph+and+the+fat+body+of+Lymantria+dispar+.&rft.au=Valaitis%2C+A&rft.aulast=Valaitis&rft.aufirst=A&rft.date=1992-01-01&rft.volume=22&rft.issue=7&rft.spage=639&rft.isbn=&rft.btitle=&rft.title=Insect+Biochemistry+and+Molecular+Biology&rft.issn=09651748&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - body; use; purification ER - TY - JOUR T1 - The effect of acetone on the viability of chicken anemia agent. AN - 16364696; 2860130 AB - To study the effect of acetone on the viability of CAA, a sample of CAA with a known titer was treated with 90% acetone for 24 hours at room temperature. The remaining viable CAA was quantitated by titrating the treated preparation in MDCC-MSB1 cell culture. Results indicated that CAA is very resistant to inactivation by acetone. JF - Avian Diseases AU - Taylor, S P AD - Biol. Virol. Lab., Natl. Vet. Serv. Lab., Anim. and Plant Health Insp. Serv., Vet. Serv., USDA, Ames, IA 50010, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 753 EP - 754 VL - 36 IS - 3 SN - 0005-2086, 0005-2086 KW - chicken anemia agent KW - acetone KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Virology & AIDS Abstracts KW - antiviral activity KW - A 01068:Antiviral & viricidal KW - V 22100:Antiviral agents UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16364696?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+Diseases&rft.atitle=The+effect+of+acetone+on+the+viability+of+chicken+anemia+agent.&rft.au=Taylor%2C+S+P&rft.aulast=Taylor&rft.aufirst=S&rft.date=1992-01-01&rft.volume=52&rft.issue=2&rft.spage=139&rft.isbn=&rft.btitle=&rft.title=Great+Basin+Naturalist&rft.issn=00173614&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - antiviral activity ER - TY - JOUR T1 - Binding of Salmonella strains to immobilized intestinal mucosal preparations from broiler chickens. AN - 16363478; 2847221 AB - The binding kinetics of radiolabeled Salmonella california 1989/O (mannose-sensitive hemagglutinin-positive (MSHA+)) to immobilized mucus or enterocytes isolated from broiler ceca and inhibition of binding by D-mannose and sodium metaperiodate were characteristic of adherence of mannose-sensitive type 1 fimbriae of bacteria to eukaryotic mannose-containing receptors. Binding by radiolabeled strains 1989/O (in the presence of D-mannose) and S. typhimurium S 7471 N (MSHA-, non-fimbriated) indicated non-specific binding that was characterized by less binding to enterocytes and mucus and lack of inhibition by carbohydrates or prior treatment with sodium metaperiodate. JF - Avian Diseases AU - Craven, SE AU - Cox, NA AU - Bailey, J S AU - Blankenship, L C AD - Poult. Microbiol. Saf. Res. Unit, R.B. Russell Agric. Res. Cent., Agric. Res. Serv., USDA, Athens, GA 30613, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 296 EP - 303 VL - 36 IS - 2 SN - 0005-2086, 0005-2086 KW - chickens KW - Microbiology Abstracts B: Bacteriology KW - mucosa KW - cell surface KW - intestine KW - immobilization KW - cell adhesion KW - Salmonella KW - J 02862:Infection KW - J 02721:Cell cycle, morphology and motility UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16363478?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+Diseases&rft.atitle=Binding+of+Salmonella+strains+to+immobilized+intestinal+mucosal+preparations+from+broiler+chickens.&rft.au=Craven%2C+SE%3BCox%2C+NA%3BBailey%2C+J+S%3BBlankenship%2C+L+C&rft.aulast=Craven&rft.aufirst=SE&rft.date=1992-01-01&rft.volume=36&rft.issue=2&rft.spage=296&rft.isbn=&rft.btitle=&rft.title=Avian+Diseases&rft.issn=00052086&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Salmonella; mucosa; immobilization; cell adhesion; cell surface; intestine ER - TY - JOUR T1 - Atmospheric dry deposition on pines in the Eastern Brook Lake Watershed, Sierra Nevada, California. AN - 16362814; 2857450 AB - Atmospheric dry deposition to branches of Pinus contorta and P. albicaulis was measured during summer 1987 in a sub-alpine zone at Eastern Brook Lake Watershed (EBLW), eastern Sierra Nevada, California. Deposition fluxes of anions and cations to the pine branches were low, several times lower than the values determined near the Emerald Lake Watershed (ELW), another sub-alpine location in the western Sierra Nevada. The sums of deposition fluxes of the measured cations and anions to pine surfaces were similar, in contrast to the ELW location where the sums of cation fluxes were much higher than the sums of anion fluxes. JF - Atmospheric Environment, Part A AU - Bytnerowicz, A AU - Dawson, P J AU - Morrison, CL AU - Poe, M P AD - USDA Forest Serv. Pacific Southwest Res. Stn., 4955 Canyon Crest Dr., Riverside, CA 92507, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 3195 EP - 3201 VL - 26A IS - 17 SN - 0004-6981, 0004-6981 KW - USA, California, Sierra Nevada KW - Pollution Abstracts KW - forests KW - anions KW - Pinus albicaulis KW - Pinus contorta KW - watersheds KW - atmosphere KW - nitrogen KW - dry deposition KW - cations KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16362814?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment%2C+Part+A&rft.atitle=Atmospheric+dry+deposition+on+pines+in+the+Eastern+Brook+Lake+Watershed%2C+Sierra+Nevada%2C+California.&rft.au=Bytnerowicz%2C+A%3BDawson%2C+P+J%3BMorrison%2C+CL%3BPoe%2C+M+P&rft.aulast=Bytnerowicz&rft.aufirst=A&rft.date=1992-01-01&rft.volume=26A&rft.issue=17&rft.spage=3195&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment%2C+Part+A&rft.issn=00046981&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinus contorta; Pinus albicaulis; atmosphere; anions; nitrogen; cations; watersheds; dry deposition; forests ER - TY - JOUR T1 - Full-fat soybean meal utilization by fish. AN - 16362557; 2853089 AB - Full-fat soybean meal (FFSBM) contains slightly lower crude protein but much higher oil than defatted soybean meal. Like defatted soybean meal, FFSBM has one of the best amino acid profiles among vegetable proteins in meeting the essential amino acid requirements of fish. FFSBM is also a good source of linoleic and linolenic acids and phospholipids. There is little phosphorus present in FFSBM and it is mostly in the form of phytic acid which is not highly available for fish and hampers the utilization of other minerals. Raw soybeans also contain several anti-nutritional factors known to affect the growth and health of fish. However, several methods of heat treatment have been successfully used to inactivate or eliminate anti-nutritional factors that improve the nutritive value of FFSBM. Research information shows that the nutritive value of properly heated FFSBM for fish is comparable to, if not better than, defatted soybean meal reconstituted with soybean oil. JF - Asian fisheries science. Metro Manila AU - Lim, C AU - Akiyama, D M AD - USDA-ARS-PW, Trop. Aquacult. Res. Unit, Oceanic Inst., Makapuu Point, P.O. Box 25280, Honolulu, HI 96795, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 181 EP - 197 VL - 5 IS - 2 SN - 0116-6514, 0116-6514 KW - soybean meal KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA Aquaculture Abstracts KW - artificial feeding KW - fish culture KW - diets KW - nutritive value KW - Glycine max KW - Q3 08582:Fish culture KW - Q1 08582:Fish culture UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16362557?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Asian+fisheries+science.+Metro+Manila&rft.atitle=Full-fat+soybean+meal+utilization+by+fish.&rft.au=Lim%2C+C%3BAkiyama%2C+D+M&rft.aulast=Lim&rft.aufirst=C&rft.date=1992-01-01&rft.volume=5&rft.issue=2&rft.spage=181&rft.isbn=&rft.btitle=&rft.title=Asian+fisheries+science.+Metro+Manila&rft.issn=01166514&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - artificial feeding; fish culture; diets; nutritive value; Glycine max ER - TY - JOUR T1 - Influence of fat content on uptake and depuration of the off-flavor 2-methylisoborneol by channel catfish (Ictalurus punctatus ). AN - 16358996; 2849727 AB - Channel catfish (Ictalurus punctatus ) of different tissue fat contents (0.5-11.0%) were held in water containing approximately 0.5 mu g/L of the off-flavor compound 2-methylisoborneol (MIB) for various times. A new analytical method was developed to quantify tissue burdens of MIB. Fish showed significant bioconcentration of MIB after 2 h and equilibrium by 24 h. The fatter fish (> 2.5% muscle fat) accumulated nearly three times more MIB than lean fish (< 2%). Purging fish in MIB-free water indicated that leaner fish depurate faster (8 h) than fatter fish (48 h). Fat content had more influence in determining the time for return to acceptable flavor than initial MIB concentration. Managing catfish production to harvest leaner fish could minimize the impact of off-flavor on fish producers. JF - Canadian Journal of Fisheries and Aquatic Sciences AU - Johnsen, P B AU - Lloyd, S W AD - USDA Agric. Res. Serv., Food Unit, Box 19687, New Orleans, LA 70179, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 2406 EP - 2411 VL - 49 IS - 11 SN - 0706-652X, 0706-652X KW - methylisoborneol KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA Aquaculture Abstracts KW - fishery economics KW - self purification KW - fish culture KW - correlation analysis KW - Freshwater KW - taste KW - acceptance tests KW - Ictalurus punctatus KW - bioaccumulation KW - aquaculture products KW - fats KW - quality control KW - organoleptic properties KW - Q3 08582:Fish culture KW - Q1 08627:Food quality and standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16358996?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences&rft.atitle=Influence+of+fat+content+on+uptake+and+depuration+of+the+off-flavor+2-methylisoborneol+by+channel+catfish+%28Ictalurus+punctatus+%29.&rft.au=Johnsen%2C+P+B%3BLloyd%2C+S+W&rft.aulast=Johnsen&rft.aufirst=P&rft.date=1992-01-01&rft.volume=49&rft.issue=11&rft.spage=2406&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences&rft.issn=0706652X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - fishery economics; aquaculture products; self purification; fish culture; quality control; fats; correlation analysis; acceptance tests; taste; organoleptic properties; bioaccumulation; Ictalurus punctatus; Freshwater ER - TY - JOUR T1 - Production of polyclonal antibodies in rabbits is simplified using perforated plastic golf balls. AN - 16353830; 2844675 AB - Production of polyclonal antibodies in the lumen of a perforated golf ball implanted surgically under the skin of a rabbit offers advantages over conventional techniques. Less stress is placed on the rabbit because bleeding is eliminated, complete adjuvants are not used and animal handling is minimized. The technique also offers the advantage that large amounts of antibody-containing fluid can be removed easily from the ball. We describe the surgical protocol and demonstrate use of this technique to produce high-titered antibodies to plant and plant proteins. JF - Biotechniques AU - Ried, J L AU - Walker-Simmons, M K AU - Everard, J D AU - Diani, J AD - USDA-ARS, Johnson Hall 209, Washington State Univ., Pullman, WA 99164-6420, USA Y1 - 1992 PY - 1992 DA - 1992 VL - 12 IS - 5 SN - 0736-6205, 0736-6205 KW - plastic golf balls KW - rabbits KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts KW - immunization KW - anti KW - plastics KW - antibodies KW - plants KW - plant viruses KW - implantation KW - production KW - proteins KW - W2 32375:Antibodies KW - W 30965:Miscellaneous, Reviews KW - W2 32240:Immunology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16353830?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biotechniques&rft.atitle=Production+of+polyclonal+antibodies+in+rabbits+is+simplified+using+perforated+plastic+golf+balls.&rft.au=Ried%2C+J+L%3BWalker-Simmons%2C+M+K%3BEverard%2C+J+D%3BDiani%2C+J&rft.aulast=Ried&rft.aufirst=J&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - immunization; anti; plastics; antibodies; plants; plant viruses; implantation; proteins; production ER - TY - JOUR T1 - Factors affecting wiregrass (Aristida stricta Michx.) cover on uncut and site prepared sandhills areas in central Florida. AN - 16352250; 2850711 AB - Because wiregrass (Aristida stricta Michx.) is a critical component of the longleaf pine (Pinus palustris Mill.) community of the southeastern Coastal Plain, USA, providing the fuel for recurring surface fires, we need restoration techniques which favor or at least maintain it. The study objective was to investigate what factors influence wiregrass cover in mature longleaf stands and in areas recently site prepared for re-establishment of longleaf pine. All sandhills sites which had been given hexazinone during site preparation for reforestation to longleaf pine in the past 5 years in the Ocala National Forest, Florida, USA, were sampled during the late summer and autumn of 1990. Regression analyses showed wiregrass cover was greater on areas treated to reduce oak cover with the herbicide hexazinone when dry conditions prevailed the month following application. Moisture had the reverse effect on sites chopped to reduce scrub oaks, with wiregrass cover decreasing with drier conditions. JF - Ecological Engineering AU - Outcalt, K W AD - USDA Forest Serv., Southeastern Forest Exp. Stn., Univ. Florida, P.O. Box 14524, Gainesville, FL 32604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 245 EP - 251 VL - 1 IS - 3 SN - 0925-8574, 0925-8574 KW - Ecology Abstracts KW - environmental factors KW - Aristida stricta KW - cover KW - USA, Florida KW - clear cutting KW - Pinus palustris KW - environmental restoration KW - soil moisture KW - D 04636:Grasses UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16352250?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Engineering&rft.atitle=Factors+affecting+wiregrass+%28Aristida+stricta+Michx.%29+cover+on+uncut+and+site+prepared+sandhills+areas+in+central+Florida.&rft.au=Outcalt%2C+K+W&rft.aulast=Outcalt&rft.aufirst=K&rft.date=1992-01-01&rft.volume=1&rft.issue=3&rft.spage=245&rft.isbn=&rft.btitle=&rft.title=Ecological+Engineering&rft.issn=09258574&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinus palustris; Aristida stricta; USA, Florida; environmental factors; cover; soil moisture; clear cutting; environmental restoration ER - TY - JOUR T1 - Comparative phytotoxicity of the fumonisins, AAL-toxin and yeast sphingolipids in Lemna minor L. (duckweed). AN - 16352060; 2852890 AB - Fumonisin B sub(1) and AAL-toxin, both of which contain sphingolipid-like substituents, are water-soluble metabolites of Fusarium moniliforme) and Alternaria alternata , respectively. These two toxins were compared to each other and to tetraacetyl-phytosphingosine (TAPS) and triacetyl-dihydrosphingosine (TADS) for effects on chlorophyll production and growth in Lemna minor L. (duckweed). Fumonisin B sub(1) (0.7 mu g), TAPS, and TADS all produced parallel effects on growth rate and chlorophyll content; however, FB sub(1) did so at a 33-fold lower concentration. The AAL-toxin at 0.7 mu g affects chlorophyll content more than plant growth (36% versus 73%, respectively), whereas at 3.3 mu g concentration, the growth rate was less than 50% and chlorophyll content was reduced by 80%. JF - Archives of Environmental Contamination and Toxicology AU - Vesonder, R F AU - Peterson, R E AU - Labeda, D AU - Abbas, H K AD - Natl. Cent. Agric. Util. Res., ARS/USDA, 1815 N. University St., Peoria, IL 61604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 464 EP - 467 VL - 23 IS - 4 SN - 0090-4341, 0090-4341 KW - AAL toxins KW - biological poisons KW - fumonisin B1 KW - fumonisins KW - phytotoxicity KW - phytotoxins KW - sphingolipids KW - tetraacetylphytosphingosine KW - toxicity tests KW - triacetyldihydrosphingosine KW - ASFA 1: Biological Sciences & Living Resources; Pollution Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Lemna minor KW - aquatic plants KW - Freshwater KW - Alternaria alternata KW - Fusarium moniliforme KW - pest control KW - yeasts KW - Q1 08206:Physiology, biochemistry, biophysics KW - A 01014:Others KW - K 03040:Fungi KW - P 2000:FRESHWATER POLLUTION KW - Q1 08485:Species interactions: pests and control KW - A 01023:Others KW - K 03035:Fungi UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16352060?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Twelve+Years+of+Abandoned+Mineland+Reclamation+Activities+by+the+United+States+Department+of+Agriculture-Soil+Conservation+Service+in+Southwest+Pennsylvania&rft.au=Bogovich%2C+WM&rft.aulast=Bogovich&rft.aufirst=WM&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - pest control; biological poisons; aquatic plants; toxicity tests; yeasts; phytotoxicity; sphingolipids; phytotoxins; Fusarium moniliforme; Lemna minor; Alternaria alternata; Freshwater ER - TY - JOUR T1 - New forestry principles from ecosystem analysis of Pacific Northwest forests. AN - 16350804; 2850669 AB - Forest management practices on Federal lands in the Pacific Northwest of the United States have been the center of intense controversy. Conflicting value systems, new information, and new perspectives have fueled the debate over the balance between timber production and preservation of natural ecosystems. In this paper we consider examples from three aspects of forest management: (1) management of forest stands, (2) management of the patchwork of forest stands at the landscape scale, and (3) management of streams and riparian networks. In each of these cases we examine: management practices and perspectives of the recent past, findings from ecosystem research that are leading to change in those practices, resulting changes in management practices, and future research directions. We also suggest a path for future change, including systems for managing in the face of uncertainty. JF - Ecological Applications AU - Swanson, F J AU - Franklin, J F AD - USDA Forest Serv., Pacific Northwest Res. Stn., 3200 Jefferson Way, Corvallis, OR 97331, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 262 EP - 274 VL - 2 IS - 3 SN - 1051-0761, 1051-0761 KW - Ecology Abstracts KW - ecosystem analysis KW - forest management KW - USA, Pacific Northwest KW - D 04700:Management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16350804?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Applications&rft.atitle=New+forestry+principles+from+ecosystem+analysis+of+Pacific+Northwest+forests.&rft.au=Swanson%2C+F+J%3BFranklin%2C+J+F&rft.aulast=Swanson&rft.aufirst=F&rft.date=1992-01-01&rft.volume=2&rft.issue=3&rft.spage=262&rft.isbn=&rft.btitle=&rft.title=Ecological+Applications&rft.issn=10510761&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - USA, Pacific Northwest; forest management; ecosystem analysis ER - TY - JOUR T1 - Nitrosamines in rubber bands used for orthodontic purposes. AN - 16346775; 2852998 AB - Fourteen samples from eight brands of elastic-rubber bands used in orthodontics were tested for their nitrosamine content. The presence of N-nitrosodibutylamine and N-nitrosopiperidine was confirmed. The potential for nitrosamine formation from accelerating agents used for vulcanization and from other nitrosatable amines, which may be present in rubber exposed to salivary nitrite, justifies further investigations. JF - Food and Chemical Toxicology AU - Fiddler, W AU - Pensabene, J AU - Sphon, J AU - Andrzejewski, D AD - USDA-ARS-ERRC, 600 E. Mermaid Ln., Philadelphia, PA 19118, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 325 EP - 326 VL - 30 IS - 4 SN - 0278-6915, 0278-6915 KW - rubber bands KW - orthodontics KW - dental prosthetics KW - nitrosamines KW - Health & Safety Science Abstracts; Toxicology Abstracts KW - X 24200:Nitrosamines & related compounds KW - H SM3.3:HAZARD DETERMINATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16346775?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Food+and+Chemical+Toxicology&rft.atitle=Nitrosamines+in+rubber+bands+used+for+orthodontic+purposes.&rft.au=Fiddler%2C+W%3BPensabene%2C+J%3BSphon%2C+J%3BAndrzejewski%2C+D&rft.aulast=Fiddler&rft.aufirst=W&rft.date=1992-01-01&rft.volume=30&rft.issue=4&rft.spage=325&rft.isbn=&rft.btitle=&rft.title=Food+and+Chemical+Toxicology&rft.issn=02786915&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - nitrosamines; orthodontics; dental prosthetics ER - TY - JOUR T1 - Simulations of horizontal roll vortex development above lines of extreme surface heating. AN - 16345385; 2851066 AB - A two-dimensional nonhydrostatic, coupled, earth/atmospheric model has been used to simulate mean and turbulent atmospheric characteristics near lines of extreme surface heating. Prognostic equations are used to solve for the horizontal and vertical wind components, potential temperature, and turbulent kinetic energy (TKE). The model computes nonhydrostatic pressure deviations from a derived atmospheric continuity equation. Horizontal pressure gradients generated from surface heating are calculated from thermal wind principles. Model simulations indicate the development of buoyancy-induced horizontal roll vortices near regions with surface temperatures typical of wildland fires. Model results are qualitatively similar to previous wind-tunnel experiments. JF - International Journal of Wildland Fire AU - Heilman, W E AU - Fast, J D AD - USDA Forest Serv., 1407 South Harrison Rd., East Lansing, MI 48823, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 55 EP - 68 VL - 2 IS - 2 SN - 1049-8001, 1049-8001 KW - vortices KW - environmental management KW - Health & Safety Science Abstracts KW - wind KW - atmosphere KW - turbulence KW - simulation KW - fires KW - velocity KW - H SE8.27:FIRES IN NATURAL ENVIRONMENTS UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16345385?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Wildland+Fire&rft.atitle=Simulations+of+horizontal+roll+vortex+development+above+lines+of+extreme+surface+heating.&rft.au=Heilman%2C+W+E%3BFast%2C+J+D&rft.aulast=Heilman&rft.aufirst=W&rft.date=1992-01-01&rft.volume=2&rft.issue=2&rft.spage=55&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Wildland+Fire&rft.issn=10498001&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - fires; simulation; atmosphere; turbulence; velocity; wind ER - TY - JOUR T1 - Timing of infestation by the Colorado potato beetle (Coleoptera: Chrysomelidae) on the suppressive effect of field released stinkbugs (Hemiptera: Pentatomidae) in Washington. AN - 16344018; 2844446 AB - Delaying infestation of potatoes by overwintering Colorado potato beetles Leptinotarsa decemlineata (Say) by either 10 or 20 d following plant emergence increased damage to the potatoes. The egg deposition period was reduced from 5 to 3 wk; both increased rates of egg deposition and feeding occurred over a shorter period of time. Potatoes infested at plant emergence by Colorado potato beetle had fourth instars feeding during a 4-wk period of time while infestation 20 d after plant emergence reduced this feeding period to 2 wk and resulted in significantly greater defoliation than those infested at plant emergence. Delayed infestation by either 10 or 20 d had a negative effect on predation by Perillus bioculatus (Fabr.). Potato plants infested by Colorado potato beetles at plant emergence with releases of P. bioculatus 4 d later had the greatest percentage reduction in fourth instars and provided significantly greater foliage protection than plants infested at 10 or 20 d after plant emergence. JF - Environmental Entomology AU - Biever, K D AU - Chauvin, R L AD - Fruit and Veg. Insect Res. Unit, USDA, Agric. Res. Serv., 3706 W. Nob Hill Blvd., Yakima, WA 98902, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1212 EP - 1219 VL - 21 IS - 5 SN - 0046-225X, 0046-225X KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Entomology Abstracts KW - Perillus bioculatus KW - USA, Washington KW - biological control KW - population levels KW - Coleoptera KW - Pentatomidae KW - Leptinotarsa decemlineata KW - Chrysomelidae KW - Hemiptera KW - pest attack KW - infestation KW - Z 05207:Agricultural & general applied entomology KW - W2 32445:Pest control KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16344018?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Timing+of+infestation+by+the+Colorado+potato+beetle+%28Coleoptera%3A+Chrysomelidae%29+on+the+suppressive+effect+of+field+released+stinkbugs+%28Hemiptera%3A+Pentatomidae%29+in+Washington.&rft.au=Biever%2C+K+D%3BChauvin%2C+R+L&rft.aulast=Biever&rft.aufirst=K&rft.date=1992-01-01&rft.volume=21&rft.issue=5&rft.spage=1212&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - population levels; biological control; infestation; pest attack; Perillus bioculatus; Coleoptera; Pentatomidae; Leptinotarsa decemlineata; Hemiptera; Chrysomelidae; USA, Washington ER - TY - JOUR T1 - New perspectives for sustainable natural resources management. AN - 16343073; 2850799 AB - The USDA Forest Service is taking a new direction in its research and management programs in response to changing views of land and natural resources. The changes reflect the complexity of society's concerns and expectations for national forest management, including biological diversity, ecological function and balance, product yields, social values, and the beauty and integrity of natural environments. The new direction involved a shift in management focus from sustaining yields of competing resource outputs to sustaining ecosystems. More than ever, management of public lands and resources requires knowledge about ecosystems, including relationships to human values, activities, and patterns of resource use. Also required are new roles for scientists, including closed partnerships with managers to achieve large-scale studies and adaptive management of public lands and resources. JF - Ecological Applications AU - Kessler, W B AU - Salwasser, H AU - Cartwright, CW Jr AU - Caplan, JA AD - USDA Forest Serv., P.O. Box 96090, Washington, DC 20090-6090, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 221 EP - 225 VL - 2 IS - 3 SN - 1051-0761, 1051-0761 KW - US Forest Service KW - Ecology Abstracts KW - government policy KW - USA KW - sustainable development KW - resource management KW - D 04700:Management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16343073?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Applications&rft.atitle=New+perspectives+for+sustainable+natural+resources+management.&rft.au=Kessler%2C+W+B%3BSalwasser%2C+H%3BCartwright%2C+CW+Jr%3BCaplan%2C+JA&rft.aulast=Kessler&rft.aufirst=W&rft.date=1992-01-01&rft.volume=2&rft.issue=3&rft.spage=221&rft.isbn=&rft.btitle=&rft.title=Ecological+Applications&rft.issn=10510761&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - USA; sustainable development; resource management; government policy ER - TY - JOUR T1 - Nitrogen metabolism of normal and high-seed-protein soybean. AN - 16340944; 2845453 AB - Nitrogen metabolism differences, including N sub(2) fixation, between high- and normal-seed-protein soybean (Glycine max) (L.) Merr.) lines of equivalent plant maturity and seed yielding ability have not been determined in field tests. A replicated field experiment was conducted in 1985 and 1986 to determine such differences on a Mattapex silt loam (fine, silty, mixed, mesic Aqualfic Hapludult) with low soil N. The study used the nodulating-nonnodulating N difference method to estimate N sub(2) fixation of two soybean lines with contrasting seed protein levels. Eight sequential harvests were conducted from R5 (beginning seed) to combine harvest for the dry weights and N contents of vegetative and reproductive portions of the plants. The greater N accumulation by the high-protein line resulted from N sub(2) fixation being sustained until the late R6 (full seed) stage. Nodule occupancy by strains of Bradyrhizobium japonicum) was similar for the high- and normal-seed-protein lines. JF - Crop Science AU - Leffel, R C AU - Cregan, P B AU - Bolgiano AU - Thibeau, D J AD - USDA-ARS, Soybean and Alfalfa Res. Lab., Plant Sci. Inst., Build. 011, HH 19, Beltsville Agric. Res. Center, West Beltsville, MD 20705, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 747 EP - 750 VL - 32 IS - 3 SN - 0011-183X, 0011-183X KW - nitrogen KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - metabolism KW - cultivars KW - seeds KW - Bradyrhizobium japonicum KW - proteins KW - nitrogen fixation KW - Glycine max KW - A 01051:Nitrogen cycle UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16340944?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Nitrogen+metabolism+of+normal+and+high-seed-protein+soybean.&rft.au=Leffel%2C+R+C%3BCregan%2C+P+B%3BBolgiano%3BThibeau%2C+D+J&rft.aulast=Leffel&rft.aufirst=R&rft.date=1992-01-01&rft.volume=32&rft.issue=3&rft.spage=747&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Glycine max; Bradyrhizobium japonicum; nitrogen fixation; cultivars; seeds; proteins; metabolism ER - TY - JOUR T1 - The role of Ca super(2+)-dependent proteases (calpains) in post mortem proteolysis and meat tenderness. AN - 16339126; 2840445 AB - This manuscript summarizes research results from our laboratory regarding the role of endogenous proteases in post mortem proteolysis resulting in meat tenderization. Proteolysis of key myofibrillar proteins is the principal reason for ultrastructural changes in skeletal muscle associated with meat tenderization. The authors have concluded that calpains are the main proteolytic system responsible for post mortem proteolysis, and that one of the main regulators of calpains is their endogenous inhibitor, calpastatin. JF - Biochimie. Paris AU - Koohmaraie, M AD - USDA, ARS, Roman L. Hruska US Meat Anim. Res. Cent., P.O. Box 166, Clay Cent., NE 68933, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 239 EP - 245 VL - 74 IS - 3 SN - 0300-9084, 0300-9084 KW - calpain KW - carcasses KW - meat tenderization KW - postmortem KW - proteolysis KW - reviews KW - role KW - Microbiology Abstracts B: Bacteriology; Calcium & Calcified Tissue Abstracts KW - T 20029:Enzymes KW - J:20320 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16339126?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Infection+and+Immunity&rft.atitle=The+Anaplasma+marginale+msp5+gene+encodes+a+19-kilodalton+protein+conserved+in+all+recognized+Anaplasma+species.&rft.au=Visser%2C+E+S%3BMcGuire%2C+T+C%3BPalmer%2C+G+H%3BDavis%2C+W+C%3BShkap%2C+V%3BPipano%2C+E%3BKnowles%2C+D+P%2C+Jr&rft.aulast=Visser&rft.aufirst=E&rft.date=1992-01-01&rft.volume=60&rft.issue=12&rft.spage=5139&rft.isbn=&rft.btitle=&rft.title=Infection+and+Immunity&rft.issn=00199567&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - reviews; role; proteolysis; carcasses ER - TY - JOUR T1 - Mapping Phytophthora resistance loci in soybean with restriction fragment length polymorphism markers. AN - 16336817; 2845860 AB - Phytophthora root rot, caused by Phytophthora megasperma Drechs. f. sp. glycinea T. Kuan & D.C. Erwin, is one of the most serious diseases of soybean (Glycine max (L.) Merr.). Six loci with alleles giving race-specific resistance of soybean to phytophthora have been reported. The first objective of this study was to map the phytophthora resistance (Rps) loci using restriction fragment length polymorphism (RFLP) markers. The second objective was to map the Rj2 locus for ineffective nodulation with RFLP markers, because of the linkage of Rj2 to Rps2. The mapping was conducted using a series of "Williams" near-isogenic lines (NILs) with each having one or two phytophthora resistance alleles. JF - Crop Science AU - Diers, B W AU - Mansur, L AU - Imsande, J AU - Shoemaker, R C AD - USDA-ARS, Field Crops Res. and Dep. Agron. and Zool./Genet., Iowa State Univ., Ames, IA 50011, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 377 EP - 383 VL - 32 IS - 2 SN - 0011-183X, 0011-183X KW - Phytophthora megasperma glycinea KW - f.sp.glycinea KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology; Agricultural and Environmental Biotechnology Abstracts; Genetics Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - disease resistance KW - restriction fragment length polymorphism KW - loci KW - Phytophthora megasperma KW - Glycine max KW - root rot KW - K 03089:Fungi: plant KW - A 01030:General KW - A 01025:Leguminous crops KW - G 07354:Dicotyledons (crops) KW - W 30965:Miscellaneous, Reviews KW - W2 32430:Plant Diseases: Control and resistance UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16336817?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Mapping+Phytophthora+resistance+loci+in+soybean+with+restriction+fragment+length+polymorphism+markers.&rft.au=Diers%2C+B+W%3BMansur%2C+L%3BImsande%2C+J%3BShoemaker%2C+R+C&rft.aulast=Diers&rft.aufirst=B&rft.date=1992-01-01&rft.volume=32&rft.issue=2&rft.spage=377&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - disease resistance; restriction fragment length polymorphism; loci; root rot; Phytophthora megasperma; Glycine max ER - TY - JOUR T1 - Binding of riboflavin to lipophorin and a hexameric protein in the hemolymph of Heliothis virescens . AN - 16335231; 2843282 AB - The hemolymph of late final instar Heliothis virescens larvae was analyzed for riboflavin and its metabolic derivatives. Riboflavin levels in the hemolymph were found to be relatively high at this developmental stage (ca 25 mu g/ml hemolymph) and all of the flavin was associated with high molecular weight proteins. Based on the recovery of riboflavin with purified hemolymph protein preparations, approx. 15% of the total was bound to lipophorin and the remainder to a hexameric storage protein comprised of 82 kDa subunits, designated p82. The recovery of p82-bound riboflavin was not quantitative, a result attributable to the effects of sample dilution during purification. The p82 hexamer (but not lipophorin, arylphorin or other hemolymph proteins) was bound by a flavinyl-agarose affinity matrix, which provided independent confirmation of its identity as a flavin-binding protein. JF - Insect Biochemistry and Molecular Biology AU - Miller, S G AU - Silhacek, D L AD - Insect Attractants, Behav. and Basic Biol. Res. Lab., ARS, USDA, P.O. Box 14565, Gainesville, FL 32604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 571 EP - 583 VL - 22 IS - 6 SN - 0965-1748, 0965-1748 KW - Heliothis virescens KW - Lepidoptera KW - Noctuidae KW - binding KW - haemolymph KW - lipophorin KW - riboflavin KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Entomology Abstracts KW - Z 05170:Circulatory system UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16335231?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Insect+Biochemistry+and+Molecular+Biology&rft.atitle=Binding+of+riboflavin+to+lipophorin+and+a+hexameric+protein+in+the+hemolymph+of+Heliothis+virescens+.&rft.au=Miller%2C+S+G%3BSilhacek%2C+D+L&rft.aulast=Miller&rft.aufirst=S&rft.date=1992-01-01&rft.volume=22&rft.issue=6&rft.spage=571&rft.isbn=&rft.btitle=&rft.title=Insect+Biochemistry+and+Molecular+Biology&rft.issn=09651748&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - binding ER - TY - JOUR T1 - Screening of nonfilamentous bacteria for production of cutin-degrading enzymes. AN - 16334517; 2846483 AB - Two hundred thirty-two nonfilamentous bacterial strains, including saprophytes, plant pathogens, and opportunistic plant human pathogens, were screened for the ability to produce cutinases (cutin-degrading esterases). Initially, esterase activity of culture filtrates of strains grown in nutrient broth-yeast extract medium supplemented with 0.4% apple or tomato cutin was determined by a spectrophotometric assay utilizing the model substrate p-nitrophenyl butyrate. The culture filtrates of the 10 Pseudomonas aeruginosa strains tested exhibited the highest esterase activity, with value of > 500 nmol/min/ml. Of these 10 strains, 3 (K799, 1499A, and ADR41352) demonstrated significant induction (10-fold or above) of esterase activity by addition of cutin to nutrient broth-yeast extract medium. The ability of culture filtrates of the three strains to cause release of apple cutin monomers was confirmed by a novel high-performance liquid chromatography technique. JF - Applied and Environmental Microbiology AU - Fett, W F AU - Gerard, H C AU - Moreau, R A AU - Osman, S F AU - Jones, LE AD - Plant Sci. Res. Unit, Eastern Reg. Res. Cent., Agric. Res. Serv., USDA, Philadelphia, PA 19118, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 2123 EP - 2130 VL - 58 IS - 7 SN - 0099-2240, 0099-2240 KW - cutin KW - esterase KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - degradation KW - bacteria KW - Pseudomonas aeruginosa KW - production KW - A 01006:Enzymes & cofactors KW - J 02728:Enzymes KW - W2 32310:Enzymes and cofactors KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16334517?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Screening+of+nonfilamentous+bacteria+for+production+of+cutin-degrading+enzymes.&rft.au=Fett%2C+W+F%3BGerard%2C+H+C%3BMoreau%2C+R+A%3BOsman%2C+S+F%3BJones%2C+LE&rft.aulast=Fett&rft.aufirst=W&rft.date=1992-01-01&rft.volume=58&rft.issue=7&rft.spage=2123&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - degradation; bacteria; production; Pseudomonas aeruginosa ER - TY - JOUR T1 - The economic potential for improved fiber recovery from recycled papermills. AN - 16334196; 2840255 AB - Improvement in the efficiency of secondary fiber papermills through fiber recovery from mill tailings or reject streams is important. Improved contaminant removal, reduced sludge disposal cost, and increased economic performance can be obtained using fluid shear field principles. This paper looks at the economic feasibility of using this principle to improve fiber recovery and contaminant removal from a recycled papermill recycling old newspaper into newsprint. JF - Forest Products Journal AU - Marcin, T C AU - Klungness, J H AD - USDA Forest Serv., Forest Prod. Lab., One Gifford Pinchot Dr., Madison, WI 53705-2398, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 21 EP - 26 VL - 42 IS - 9 SN - 0015-7473, 0015-7473 KW - Pollution Abstracts KW - recycling KW - paper industry wastes KW - economics KW - sludge disposal KW - P 4000:WASTE MANAGEMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16334196?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Products+Journal&rft.atitle=The+economic+potential+for+improved+fiber+recovery+from+recycled+papermills.&rft.au=Marcin%2C+T+C%3BKlungness%2C+J+H&rft.aulast=Marcin&rft.aufirst=T&rft.date=1992-01-01&rft.volume=42&rft.issue=9&rft.spage=21&rft.isbn=&rft.btitle=&rft.title=Forest+Products+Journal&rft.issn=00157473&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - paper industry wastes; sludge disposal; recycling; economics ER - TY - JOUR T1 - Differentiation of pathogenic and non-pathogenic serotype 1 Marek's disease viruses (MDVs) by the polymerase chain reaction amplification of the tandem direct repeats within the MDV genome. AN - 16333443; 2845397 AB - There are no simple, direct methods to reliably distinguish oncogenic serotype 1 Marek's disease viruses (MDVs) from their attenuated variants. The present study was an attempt to apply polymerase chain reaction (PCR) to develop a rapid and sensitive assay for the presence of the MDV genome. PCR oligos were chosen to flank the 132-base-pair tandem direct repeats in the serotype 1 MDV genome. The PCR reaction was specific for serotype 1 MDVs, amplifying fragments corresponding to one to three copies of the tandem repeats present in Md11/8, JM/102W, and GA viruses. A high-molecular-weight DNA smear was observed when the DNA from an attenuated Md11/100 was PCR-amplified. Use of the PCR technique allowed the detection of two copies of the 132-base-pair repeat in the DNA extracted from MDV-induced lymphomas removed from two chickens. JF - Avian Diseases AU - Silva, R F AD - USDA-ARS, Avian Dis. and Oncol. Lab., 3606 E. Mount Hope Rd., East Lansing, MI 48823, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 521 EP - 528 VL - 36 IS - 3 SN - 0005-2086, 0005-2086 KW - Marek's disease virus KW - non-pathogenic strains KW - pathogenic strains KW - repeated sequence KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Virology & AIDS Abstracts KW - gene amplification KW - identification KW - genomes KW - pathogenicity KW - polymerase chain reaction KW - W2 32410:Veterinary Medicine: Diagnosis KW - V 22141:Diagnosis KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16333443?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+Diseases&rft.atitle=Differentiation+of+pathogenic+and+non-pathogenic+serotype+1+Marek%27s+disease+viruses+%28MDVs%29+by+the+polymerase+chain+reaction+amplification+of+the+tandem+direct+repeats+within+the+MDV+genome.&rft.au=Silva%2C+R+F&rft.aulast=Silva&rft.aufirst=R&rft.date=1992-01-01&rft.volume=36&rft.issue=3&rft.spage=521&rft.isbn=&rft.btitle=&rft.title=Avian+Diseases&rft.issn=00052086&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - gene amplification; identification; genomes; pathogenicity; polymerase chain reaction ER - TY - JOUR T1 - Use of pathogen filtrate to differentiate physiological resistance of dry bean to white mold disease. AN - 16332115; 2842709 AB - White mold, caused by Sclerotinia sclerotiorum (Lib.) de Bary, is a major concern to the dry bean (Phaseolus vulgaris L.) industry because it reduces yield. Incorporating partial physiological resistance (PPR) into bean is one strategy to combat the disease, but this requires a reliable screening technique. The objective of this work was to develop a reliable screening method to identify bean germplasm that express PPR to S. sclerotiorum . An in vitro method that assayed weight of calli formed on a medium amended with crude culture filtrate of S. sclerotiorum was evaluated. JF - Crop Science AU - Miklas, P N AU - Grafton, K F AU - Secor, G A AU - McClean, P E AD - USDA-ARS, Tropical Agric. Res. Stn., P.O. Box 70, Mayaguez, 00681 Puerto Rico Y1 - 1992 PY - 1992 DA - 1992 SP - 310 EP - 312 VL - 32 IS - 2 SN - 0011-183X, 0011-183X KW - Genetics Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - screening KW - resistance KW - Phaseolus vulgaris KW - white mold KW - Sclerotinia sclerotiorum KW - K 03089:Fungi: plant KW - A 01030:General KW - A 01025:Leguminous crops KW - G 07355:GENERAL) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16332115?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Use+of+pathogen+filtrate+to+differentiate+physiological+resistance+of+dry+bean+to+white+mold+disease.&rft.au=Miklas%2C+P+N%3BGrafton%2C+K+F%3BSecor%2C+G+A%3BMcClean%2C+P+E&rft.aulast=Miklas&rft.aufirst=P&rft.date=1992-01-01&rft.volume=32&rft.issue=2&rft.spage=310&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Phaseolus vulgaris; Sclerotinia sclerotiorum; white mold; resistance; screening ER - TY - JOUR T1 - Latent-period responses of stem rust in tall fescue incubated at four temperatures. AN - 16331905; 2842673 AB - Stem rust, caused by Puccinia graminis Pers.:Pers. subsp. graminicola Z. Urban, has recently been found on tall fescue (Festuca arundinacea L.) grown for seed in western Oregon. Development of stem rust in the field is affected, to a large extent, by environmental conditions. We conducted controlled environment studies to determine the effect of incubation temperature on development of uredinia in five tall fescue cultivars. Differences in latent period (time from inoculation to urediniospore production) were observed for stem rust development in tall fescue incubated at 10, 18, 25, and 27 degree C. Maximum number of erumpent pustules occurred 18, 12, 9, and 8 d after inoculation at 10, 18, 25, and 27 degree C, respectively. JF - Crop Science AU - Welty, R E AU - Barker, R E AD - USDA-ARS, Natl. Forage Seed Prod. Res. Cent., Oregon State Univ., 3450 S.W. Campus Way, Corvallis, OR 97331-7102, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 589 EP - 592 VL - 32 IS - 3 SN - 0011-183X, 0011-183X KW - subsp.graminicola KW - temperature KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Festuca arundinacea KW - latent period KW - stem rust KW - Puccinia graminis KW - A 01018:Animal foods KW - K 03089:Fungi: plant UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16331905?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Latent-period+responses+of+stem+rust+in+tall+fescue+incubated+at+four+temperatures.&rft.au=Campbell%2C+B+C%3BBragg%2C+T+S%3BTurner%2C+CE&rft.aulast=Campbell&rft.aufirst=B&rft.date=1992-01-01&rft.volume=22&rft.issue=5&rft.spage=415&rft.isbn=&rft.btitle=&rft.title=Insect+Biochemistry+and+Molecular+Biology&rft.issn=09651748&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Puccinia graminis; Festuca arundinacea; stem rust; latent period ER - TY - JOUR T1 - Riboflavin production during growth of Micrococcus luteus on pyridine. AN - 16329406; 2843656 AB - Micrococcus luteus produced 29 mu M riboflavin during growth on 6.5 mM pyridine but not during growth on other substrates. On the basis of the results of radiolabelling studies, riboflavin was not directly synthesized from pyridine. Pyridine may interfere with riboflavin biosynthesis or elicit a general stress response in M. luteus . JF - Applied and Environmental Microbiology AU - Sims, G K AU - O'Loughlin, E J AD - ARS-USDA, W-321 Turner Hall, 1102 South Goodwin, Univ. Illinois, Urbana, IL 61801, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 3423 EP - 3425 VL - 58 IS - 10 SN - 0099-2240, 0099-2240 KW - pyridine KW - riboflavine KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - biodegradation KW - biosynthesis KW - Micrococcus luteus KW - A 01006:Enzymes & cofactors KW - J 02724:Pigments and vitamins UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16329406?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Riboflavin+production+during+growth+of+Micrococcus+luteus+on+pyridine.&rft.au=Sims%2C+G+K%3BO%27Loughlin%2C+E+J&rft.aulast=Sims&rft.aufirst=G&rft.date=1992-01-01&rft.volume=58&rft.issue=10&rft.spage=3423&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Micrococcus luteus; biodegradation; biosynthesis ER - TY - JOUR T1 - Induced mutations of a genetic suppressor of resistance to wheat stem rust. AN - 16328450; 2842968 AB - A genetic suppressor of resistance to stem rust, Puccinia graminis Pers.:Pers. f. sp. tritici Eriks. & E. Henn., of wheat (Triticum aestivum L.) is on the long arm of chromosome 7D. Mutation or inactivation of the suppressor gene would allow expression of the suppressed resistance genes already present in hexaploid wheat or of resistance genes transferred to wheat from diploid or tetraploid relatives. Our objective was to induce a mutation of the suppressor gene and describe its inheritance. Seed treatment of the hexaploid wheat cultivar Canthatch (CTH) with ethyl methanesulfonate produced 15 stem rust-resistant mutants. The mutant lines were tested for reaction to 13 races of stem rust, and crossed with CTH and 7D aneuploids of CTH and "Chinese Spring" (CS). JF - Crop Science AU - Williams, N D AU - Miller, J D AU - Klindworth, D L AD - USDA-ARS, Northern Crop Sci. Lab., P.O. Box 5677, State Univ. Station, Fargo, ND 58105-5677, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 612 EP - 616 VL - 32 IS - 3 SN - 0011-183X, 0011-183X KW - f.sp.tritici KW - tritici KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Genetics Abstracts; Agricultural and Environmental Biotechnology Abstracts KW - Triticum aestivum KW - suppressors KW - genes KW - mutation KW - resistance KW - inheritance KW - Puccinia graminis KW - stem rust KW - A 01030:General KW - A 01026:Gramineous crops KW - G 07357:GENERAL KW - W 30965:Miscellaneous, Reviews KW - W2 32430:Plant Diseases: Control and resistance UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16328450?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Insect+Biochemistry+and+Molecular+Biology&rft.atitle=Molecular+characterization+of+6-phosphofructo-1-kinase+purified+from+Lymantria+dispar+.&rft.au=Valaitis%3BKemp%2C+R+G&rft.aulast=Valaitis&rft.aufirst=&rft.date=1992-01-01&rft.volume=22&rft.issue=5&rft.spage=481&rft.isbn=&rft.btitle=&rft.title=Insect+Biochemistry+and+Molecular+Biology&rft.issn=09651748&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - genes; suppressors; mutation; resistance; inheritance; stem rust; Triticum aestivum; Puccinia graminis ER - TY - JOUR T1 - Influence of temperature and moisture on vegetative propagule germination of Potamogeton species: Implications for aquatic plant management. AN - 16327905; 2832743 AB - Laboratory experiments indicated that Potamogeton nodosus winter buds and Potamogeton pectinatus tubers germinated in response to water-saturated substrate at 15, 20, and 25 degree C. Outdoor experiments with intact sediment cores indicated that winter buds of Potamogeton gramineus also germinated in response to saturating conditions at low temperatures (10-15 degree C). P. gramineus winter buds and P. pectinatus tubers, collected from irrigation canals during the winters of 1985 and 1986, germinated within 10 days of being placed at 25 degree C, indicating that germination was inhibited by environmental conditions and not by innate dormancy. Measurements made in the springs of 1985, 1986, 1987, and 1989 in the Byrnes canal, demonstrated that terrestrial forms of P. gramineus were present at densities ranging from 50 to 746 m super(-2), accounting for 30-96% of the total number of winter buds present per square meter. Penetration of accumulated rainwater into the sediment appeared to influence germination of P. gramineus winter buds and may explain why deep winter buds do not germinate prior to the canal filling with water in the spring. The ability to induce formation of terrestrial forms may lead to new management approaches. JF - Aquatic Botany AU - Spencer, D F AU - Ksander, G G AD - USDA-ARS Aquat. Weed Lab., Univ. California, Davis, CA 95616-8537, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 351 EP - 364 VL - 43 IS - 4 SN - 0304-3770, 0304-3770 KW - temperature KW - vegetative propagules KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - asexual reproduction KW - aquatic plants KW - Freshwater KW - dormancy KW - Potamogeton KW - water content KW - temperature effects KW - management KW - germination KW - D 04640:Other angiosperms KW - Q1 08422:Environmental effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16327905?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aquatic+Botany&rft.atitle=Influence+of+temperature+and+moisture+on+vegetative+propagule+germination+of+Potamogeton+species%3A+Implications+for+aquatic+plant+management.&rft.au=Spencer%2C+D+F%3BKsander%2C+G+G&rft.aulast=Spencer&rft.aufirst=D&rft.date=1992-01-01&rft.volume=43&rft.issue=4&rft.spage=351&rft.isbn=&rft.btitle=&rft.title=Aquatic+Botany&rft.issn=03043770&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - asexual reproduction; aquatic plants; water content; temperature effects; management; dormancy; temperature; germination; Potamogeton; Freshwater ER - TY - JOUR T1 - Attraction of female papaya fruit fly (Diptera: Tephritidae) to male pheromone and host fruit. AN - 16327536; 2840492 AB - A green papaya fruit or an extract of green papaya fruit peel increased unmated female papaya fruit fly (Toxotrypana curvicauda Gerstaecker) attraction to male pheromone at low pheromone release rates. Green papaya peel extract also increased mated female attraction to male pheromone, but only at the highest pheromone release rates tested. Such enhanced responses may aid the ability of females to locate hosts by responding to a combination of male pheromone released from host fruit and fruit odor. JF - Environmental Entomology AU - Landolt, P J AU - Reed, H C AU - Heath, R R AD - Insect-Attractants, Behav., and Basic Biol. Res. Lab., USDA, ARS, Gainesville, FL 32604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1154 EP - 1159 VL - 21 IS - 5 SN - 0046-225X, 0046-225X KW - Chemoreception Abstracts; Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - Toxotrypana curvicauda KW - Tephritidae KW - attractancy KW - kairomones KW - Diptera KW - sex pheromone KW - Z 05193:Orientation KW - D 04659:Insects KW - Y 25653:Insects KW - R 18052:Feeding KW - R 18051:Reproductive behavior UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16327536?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Attraction+of+female+papaya+fruit+fly+%28Diptera%3A+Tephritidae%29+to+male+pheromone+and+host+fruit.&rft.au=Landolt%2C+P+J%3BReed%2C+H+C%3BHeath%2C+R+R&rft.aulast=Landolt&rft.aufirst=P&rft.date=1992-01-01&rft.volume=21&rft.issue=5&rft.spage=1154&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Toxotrypana curvicauda; Tephritidae; Diptera; sex pheromone; kairomones; attractancy ER - TY - JOUR T1 - Phylogeny of symbiotic bacteria of four weevil species (Coleoptera: Curculionidae) based on analysis of 16S ribosomal DNA. AN - 16326916; 2844240 AB - In this report, molecular phylogenetic analysis of 16S ribosomal RNAs indicates that symbiotes from taxonomically divergent weevils are descendents of distinctly separate bacterial lineages. The intracellular symbiotes of two rhyncophorine weevils, Sitophilus oryzae L. and Sitophilus zeamais Mots, descended from the same hypothetical ancestor and share a common lineage with the secondary symbiote of the pea aphid, Acyrthosiphon pisum (Harris). These symbiotes are members of the Enterobacteriaceae in the gamma -3 subgroup of the Proteobacteria. The symbiotes of two cleonine weevils, Bangasternus orientalis (Capiomont) and Rhinocyllus conicus (Froelich), are phylogenetically distinct from the symbiotes found in the rhyncophorines and are members of a branch of the alpha -subdivision which include the cytoplasmic incompatibility microorganisms of insects (CIMS), Ehrlichia and Anaplasma . The implication of genetic divergence of bacterial symbiotes to weevil speciation is discussed. JF - Insect Biochemistry and Molecular Biology AU - Campbell, B C AU - Bragg, T S AU - Turner, CE AD - West. Reg. Res. Cent., USDA-ARS, 800 Buchanan St., Albany, CA 94710, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 415 EP - 421 VL - 22 IS - 5 SN - 0965-1748, 0965-1748 KW - rRNA 16S KW - Microbiology Abstracts B: Bacteriology; Entomology Abstracts KW - Coleoptera KW - phylogeny KW - symbionts KW - Anaplasma KW - ribosomes KW - Ehrlichia KW - Curculionidae KW - bacteria KW - DNA KW - Enterobacteriaceae KW - J 02725:DNA KW - J 02870:Invertebrate bacteriology KW - Z 05200:Symbiosis & commensalism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16326916?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Insect+Biochemistry+and+Molecular+Biology&rft.atitle=Purification+and+characterization+of+vitellogenin+from+the+gypsy+moth%2C+Lymantria+dispar+.&rft.au=Hiremath%2C+S%3BEshita%2C+S&rft.aulast=Hiremath&rft.aufirst=S&rft.date=1992-01-01&rft.volume=22&rft.issue=6&rft.spage=605&rft.isbn=&rft.btitle=&rft.title=Insect+Biochemistry+and+Molecular+Biology&rft.issn=09651748&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Curculionidae; Coleoptera; Enterobacteriaceae; Ehrlichia; Anaplasma; phylogeny; ribosomes; DNA; bacteria; symbionts ER - TY - JOUR T1 - Genes for resistance to stripe rust in "Tres: wheat. AN - 16325673; 2842975 AB - The genetic basis of stripe rust (Puccinia striiformis Westend.) resistance in the club wheat (Triticum aestivum L.) "Tres" was not previously known. This greenhouse, growth chamber, and field study was conducted to determine the inheritance of resistance in Tres and the relationship of genes for resistance in Tres to genes in other wheat cultivars. Tres was crossed with 20 wheat cultivars with genes Yr1, Yr2, Yr3a, Yr4a, Yr4b, Yr5 through Yr10, and 18 other genes for stripe rust resistance not officially named, and with "Michigan Amber", which is susceptible to all identified stripe rust races in North America. Seedlings of parents and F sub(1) and F sub(2) progeny from all crosses, back-crosses of "Chinese 166'/Tres, and F sub(3) progeny from Tres/"Lemhi" were tested for response to selected races. JF - Crop Science AU - Chen, Zianming AU - Line, R F AD - USDA-ARS, Pullman, WA 99164-6430, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 692 EP - 696 VL - 32 IS - 3 SN - 0011-183X, 0011-183X KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Genetics Abstracts KW - Puccinia striiformis KW - Triticum aestivum KW - genes KW - resistance KW - cultivars KW - stripe rust KW - A 01030:General KW - A 01026:Gramineous crops KW - G 07357:GENERAL KW - W 30965:Miscellaneous, Reviews KW - W2 32430:Plant Diseases: Control and resistance UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16325673?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Genes+for+resistance+to+stripe+rust+in+%22Tres%3A+wheat.&rft.au=Chen%2C+Zianming%3BLine%2C+R+F&rft.aulast=Chen&rft.aufirst=Zianming&rft.date=1992-01-01&rft.volume=32&rft.issue=3&rft.spage=692&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - genes; cultivars; resistance; stripe rust; Puccinia striiformis; Triticum aestivum ER - TY - JOUR T1 - Responses of Carpophilus hemipterus (Coleoptera: Nitidulidae) and other sap beetles to the pheromone of C. hemipterus and host-related coattractants in California field tests. AN - 16323811; 2841085 AB - The aggregation pheromone of Carpophilus hemipterus (L.), was field tested in California. A 4-d preliminary study in plantings of figs and stone fruits was followed by long-term studies in a date garden and a stone fruit orchard. The pheromone was most effective in combination with host-related coattractants. In the date garden, for example, traps baited with pheromone plus bread dough caught an overall mean of 1,152 C. hemipterus , but those baited with only the pheromone or dough caught only 23 and 3 per trap, respectively. In the date garden, peak response to the traps occurred during June, although temperatures were favorable for beetle flight throughout most of the year. In all experiments, both sexes responded similarly. JF - Environmental Entomology AU - Bartelt, R J AU - Dowd, P F AU - Vetter, R S AU - Shorey, H H AU - Baker, T C AD - USDA-Agric. Res. Serv., Natl. Cent. Agric. Util. Res., 1815 N. University St., Peoria, IL 61604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1143 EP - 1153 VL - 21 IS - 5 SN - 0046-225X, 0046-225X KW - Chemoreception Abstracts; Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - pheromone traps KW - pest control KW - USA, California KW - attractants KW - Nitidulidae KW - Coleoptera KW - Carpophilus hemipterus KW - aggregation pheromone KW - Z 05193:Orientation KW - D 04659:Insects KW - R 18052:Feeding KW - Y 25883:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16323811?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Responses+of+Carpophilus+hemipterus+%28Coleoptera%3A+Nitidulidae%29+and+other+sap+beetles+to+the+pheromone+of+C.+hemipterus+and+host-related+coattractants+in+California+field+tests.&rft.au=Bartelt%2C+R+J%3BDowd%2C+P+F%3BVetter%2C+R+S%3BShorey%2C+H+H%3BBaker%2C+T+C&rft.aulast=Bartelt&rft.aufirst=R&rft.date=1992-01-01&rft.volume=21&rft.issue=5&rft.spage=1143&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Carpophilus hemipterus; Nitidulidae; Coleoptera; USA, California; attractants; aggregation pheromone; pest control; pheromone traps ER - TY - JOUR T1 - Watershed ecosystem analysis as a basis for multiple-use management of eastern forests. AN - 16323102; 2841041 AB - There is a need to incorporate more science into management decisions for Eastern forests, and thereby convincingly demonstrate to forest managers and the public why certain combinations of uses may or may not be compatible. One proven approach for doing this is to use watershed ecosystem analysis. Small watersheds, usually < 100 ha in area, serve as a convenient ecosystem for studying how forests function in terms of cycling energy, nutrients, and water. Results of these studies allow assessments of forest health and productivity, and evaluations of impacts of both natural and human-related disturbances. This paper provides illustrations of how watershed ecosystem analysis can be used to study the effects of current harvesting practices, acidic deposition, and past land use. The paper also shows how recommendations for land use are derived from watershed ecosystem analysis, and how they are put into practice. JF - Ecological Applications AU - Hornbeck, J W AU - Swank, W T AD - USDA Forest Serv., Northeast. Forest Exp. Stn., Durham, NH 03824, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 238 EP - 247 VL - 2 IS - 3 SN - 1051-0761, 1051-0761 KW - USA, Eastern KW - ecosystem analysis KW - multiple use of resources KW - ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts KW - forests KW - environment management KW - watersheds KW - USA, East KW - Freshwater KW - environmental surveys KW - resource management KW - D 04700:Management KW - Q5 08523:Conservation, wildlife management and recreation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16323102?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Applications&rft.atitle=Watershed+ecosystem+analysis+as+a+basis+for+multiple-use+management+of+eastern+forests.&rft.au=Hornbeck%2C+J+W%3BSwank%2C+W+T&rft.aulast=Hornbeck&rft.aufirst=J&rft.date=1992-01-01&rft.volume=2&rft.issue=3&rft.spage=238&rft.isbn=&rft.btitle=&rft.title=Ecological+Applications&rft.issn=10510761&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - multiple use of resources; forests; environment management; watersheds; environmental surveys; resource management; ecosystem analysis; USA, East; Freshwater ER - TY - JOUR T1 - Criteria for nest site selection in honey bees (Hymenoptera: Apidae): Preferences between pheromone attractants and cavity shapes. AN - 16322258; 2840525 AB - Nerolic acid, the second most abundant compound in the Nasonov pheromone of the honey bee, Apis mellifera L., was investigated to determine its importance as a component in synthetic attractants for honey bees of Africanized and European populations. Both populations of bees preferred synthetic pheromone blends containing nerolic acid in combination with citral and geraniol to those containing only citral and geraniol. These findings indicate that honey bee swarms of both Africanized and European populations recognize and respond in the same manner to synthetic Nasonov pheromone, and that nerolic acid exerts an important synergistic effect on the attractiveness of other Nasonov components. Nest cavity shape, tapered cylinder versus rectangular prism, apparently is not an important factor in cavity acceptance by honey bee swarms. JF - Environmental Entomology AU - Schmidt, JO AU - Thoenes, A C AD - Carl Hayden Bee Res. Cent., USDA-ARS, 2000 E. Allen Rd., Tucson, AZ 85719, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1130 EP - 1133 VL - 21 IS - 5 SN - 0046-225X, 0046-225X KW - Chemoreception Abstracts; Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - Apis mellifera KW - breeding KW - Hymenoptera KW - Apidae KW - pheromones KW - site selection KW - D 04659:Insects KW - Y 25693:Insects KW - R 18054:Others KW - Z 05192:Reproductive behavior UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16322258?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Criteria+for+nest+site+selection+in+honey+bees+%28Hymenoptera%3A+Apidae%29%3A+Preferences+between+pheromone+attractants+and+cavity+shapes.&rft.au=Schmidt%2C+JO%3BThoenes%2C+A+C&rft.aulast=Schmidt&rft.aufirst=JO&rft.date=1992-01-01&rft.volume=21&rft.issue=5&rft.spage=1130&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Apis mellifera; Apidae; Hymenoptera; pheromones; breeding; site selection ER - TY - JOUR T1 - Effects of spores dosage and temperature on pathogenic expressions of chalkbrood syndrome caused by Ascosphaera torchioi within larvae of Osmia lignaria propinqua (Hymenoptera: Megachilidae). AN - 16319835; 2841232 AB - The causative agent of chalkbrood in the mason bee Osmia lignaria propinqua Cresson is a fungus recently named Ascosphaera torchioi Youssef & McManus. The present study was undertaken to devise a methodology to measure the infectivity potential of this fungus accurately, based on laboratory experiments designed to assure consumption of all spores by host larvae reared under nonstressful environments. The levels of A. torchioi infection obtained in this study (0.36-8.5%) showed a linear correlation with increasing dose, and these low-level infections overlapped chalkbrood rates found in large field populations studied over a 15-yr period (0.4-2%). The infection rates reported in this study (0.36-8.5%) are, however, much lower than those induced in a recent series of related laboratory studies (57%). JF - Environmental Entomology AU - Torchio, P F AD - Bee Biol. and Syst. Lab., USDA-ARS, Utah State Univ., Logan, UT 84322-5310, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1086 EP - 1091 VL - 21 IS - 5 SN - 0046-225X, 0046-225X KW - temperature KW - Ascosphaera torchioi KW - Osmia lignaria propinqua KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Entomology Abstracts; Ecology Abstracts KW - dosage KW - pathogenicity KW - chalkbrood disease KW - spores KW - larvae KW - Megachilidae KW - Hymenoptera KW - D 04659:Insects KW - Z 05182:Pathology KW - K 03088:Fungi: animal UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16319835?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Effects+of+spores+dosage+and+temperature+on+pathogenic+expressions+of+chalkbrood+syndrome+caused+by+Ascosphaera+torchioi+within+larvae+of+Osmia+lignaria+propinqua+%28Hymenoptera%3A+Megachilidae%29.&rft.au=Torchio%2C+P+F&rft.aulast=Torchio&rft.aufirst=P&rft.date=1992-01-01&rft.volume=21&rft.issue=5&rft.spage=1086&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Megachilidae; Hymenoptera; chalkbrood disease; spores; dosage; pathogenicity; larvae ER - TY - JOUR T1 - Longevity and and germination of Edhazardia aedis (Microspora: Amblyosporidae) spores. AN - 16319076; 2842871 AB - Edhazardia aedis is a polymorphic microsporidium of mosquitoes that is both horizontally and vertically transmitted to its host. Because it is being developed for biological control of mosquitoes, detailed knowledge is needed regarding the longevity and germation of its fragile, mosquito-infectious spore. Spores responsible for horizontal transmission were extracted from 7--10-day-old larvae (reared from infected Aedes aegypti eggs) and purified by Ludox density gradient centrifugation. Mature spores were variable in specific gravity, being found throughout the 20 and 60% zone in Ludox gradients. The optimal environment for spore germination was dilute KCl at pH 10.0-11.0; ammonia inhibited germination. Osmotic inhibition was almost complete in both sucrose and polyethylene glycol at concentrations equivalent to 40 atm. JF - Biocontrol Science and Technology AU - Undeen, AH AU - Becnel, J J AD - USDA-ARS, Med. and Vet. Entomol. Res. Lab., P.O. Box 14565, Gainesville, FL 32604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 247 EP - 256 VL - 2 IS - 3 SN - 0958-3157, 0958-3157 KW - Biotechnology and Bioengineering Abstracts; Entomology Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - spores KW - Aedes aegypti KW - biological control KW - spore germination KW - Culicidae KW - Edhazardia aedis KW - longevity KW - pathogens KW - Diptera KW - K 03091:Protozoa: animal KW - Z 05182:Pathology KW - W2 32445:Pest control KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16319076?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biocontrol+Science+and+Technology&rft.atitle=Longevity+and+and+germination+of+Edhazardia+aedis+%28Microspora%3A+Amblyosporidae%29+spores.&rft.au=Undeen%2C+AH%3BBecnel%2C+J+J&rft.aulast=Undeen&rft.aufirst=AH&rft.date=1992-01-01&rft.volume=2&rft.issue=3&rft.spage=247&rft.isbn=&rft.btitle=&rft.title=Biocontrol+Science+and+Technology&rft.issn=09583157&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - spores; biological control; spore germination; pathogens; longevity; Aedes aegypti; Culicidae; Edhazardia aedis; Diptera ER - TY - JOUR T1 - The dynamics of water in protein solutions: The field dispersion of deuterium NMR longitudinal relaxation. AN - 16318769; 2841560 AB - The analysis of the field dispersion of the super(2)H-NMR longitudinal relaxation of water in lysozyme, bovine serum albumin (BSA), alkaline phosphatase and hemocyanin solutions was attempted. In all cases, two independent relaxation contributions are required in order to fit the data. For typical globular proteins, the shortest correlation time (10 super(-8) s) is identified with the rotational correlation time of the protein monomer. A second orrelation time (10 super(-7) s)is attributed to protein polydispersity. JF - Biophysical Chemistry AU - Kakalis, L T AU - Kumosinski, T F AD - USDA, ARS, Eastern Reg. Res. Cent., 600 East Mermaid Lane, Philadelphia, PA, 19118, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 39 EP - 49 VL - 43 IS - 1 SN - 0301-4622, 0301-4622 KW - N.M.R. KW - alkaline phosphatase KW - bovine serum albumin KW - dynamics KW - hemocyanin KW - hydration KW - lysozyme KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16318769?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biophysical+Chemistry&rft.atitle=The+dynamics+of+water+in+protein+solutions%3A+The+field+dispersion+of+deuterium+NMR+longitudinal+relaxation.&rft.au=Kakalis%2C+L+T%3BKumosinski%2C+T+F&rft.aulast=Kakalis&rft.aufirst=L&rft.date=1992-01-01&rft.volume=43&rft.issue=1&rft.spage=39&rft.isbn=&rft.btitle=&rft.title=Biophysical+Chemistry&rft.issn=03014622&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Purification and characterization of vitellogenin from the gypsy moth, Lymantria dispar . AN - 16316790; 2835707 AB - Vitellogenin (Vg), the precursor of vitellin (Vt), an abundant egg yolk protein, was purified from the hemolymph of the gypsy moth (Lymantria dispar ) using FPLC techniques. The purified protein gave a single band in native polyacrylamide gel electrophoretic analysis corresponding to a size of similar to 487 kDa. It consisted of three types of subunits of 190, 165 and 36 kDa (Vg190, Vg165 and Vg36, respectively). Sodium dodecyl sulfate-PAGE analysis of egg extracts showed the presence of three proteins having sizes identical to those of Vg subunits (Vt190, Vt165 and Vt36, respectively). The larger Vg subunits were found to share sequence homology by western blot analysis, peptide mapping, amino acid composition and N-terminal sequencing. The change in the proportion of these subunits observed during development suggested that Vg165 might be derived from Vg190. The N-terminal sequences of Vt165 and Vt36 were identical to their respective counterparts in Vg. This indicates that processing of Vg into Vt does not involve proteolytic cleavage at the N-termini of the subunits. JF - Insect Biochemistry and Molecular Biology AU - Hiremath, S AU - Eshita, S AD - USDA Forest Serv., 359 Main Rd., Delaware, OH 43015, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 605 EP - 611 VL - 22 IS - 6 SN - 0965-1748, 0965-1748 KW - Lepidoptera KW - Lymantria dispar KW - Lymantriidae KW - amino acid sequence KW - gel electrophoresis KW - subunit structure KW - vitellogenin KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Entomology Abstracts KW - Z 05173:Biochemistry & metabolism (incl. fat body) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16316790?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Insect+Biochemistry+and+Molecular+Biology&rft.atitle=Purification+and+characterization+of+vitellogenin+from+the+gypsy+moth%2C+Lymantria+dispar+.&rft.au=Hiremath%2C+S%3BEshita%2C+S&rft.aulast=Hiremath&rft.aufirst=S&rft.date=1992-01-01&rft.volume=22&rft.issue=6&rft.spage=605&rft.isbn=&rft.btitle=&rft.title=Insect+Biochemistry+and+Molecular+Biology&rft.issn=09651748&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - amino acid sequence; gel electrophoresis; subunit structure ER - TY - JOUR T1 - Regulation of seasonal egg hatch by plant phenology in Stethoconus japonicus (Heteroptera: Miridae), a specialist predator of Stephanitis pyrioides (Heteroptera: Tingidae). AN - 16315893; 2820998 AB - Stethoconus japonicus Schumacher altered its oviposition site on azalea, Rhododendron spp., plants as the summer progressed. During June, eggs were deposited mostly in the midrib on the new growth. As leaves aged, the oviposition site shifted to current year's stems and the leaf scars of year-old growth. Eggs of S. japonicus began to hatch in the field in late June when early instars of the second generation of its prey, the azalea lace bug, Stephanitis pyrioides (Scott), were present. The late hatch of this specialist predator resulted in synchrony with the second generation of its prey. Asynchrony and late hatch of overwintered eggs makes S. japonicus a suitable candidate for IPM programs because the predator may escape the effects of pesticides directed at the first generation of azalea lace bug nymphs. JF - Environmental Entomology AU - Neal, JW Jr AU - Haldemann, R L AD - Florist and Nursery Crops Lab., Build. 470, Plant Sci. Inst., USDA-ARS, Beltsville, MD 20705, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 793 EP - 798 VL - 21 IS - 4 SN - 0046-225X, 0046-225X KW - Heteroptera KW - Ecology Abstracts; Entomology Abstracts KW - Stephanitis pyrioides KW - Rhododendron KW - Stethoconus japonicus KW - Miridae KW - Tingidae KW - predators KW - egg production KW - pest control KW - Z 05205:Populations & general ecology KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16315893?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Wildland+Fire&rft.atitle=Simulations+of+horizontal+roll+vortex+development+above+lines+of+extreme+surface+heating.&rft.au=Heilman%2C+W+E%3BFast%2C+J+D&rft.aulast=Heilman&rft.aufirst=W&rft.date=1992-01-01&rft.volume=2&rft.issue=2&rft.spage=55&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Wildland+Fire&rft.issn=10498001&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Stethoconus japonicus; Stephanitis pyrioides; Rhododendron; Miridae; Tingidae; predators; egg production; pest control ER - TY - JOUR T1 - Area-wide effect on oribatid mites (Acari) following application of lindane for protection of lodgepole pine from bark beetle attack. AN - 16312824; 2820875 AB - The effect of lindane on numbers and community structure of oribatid mites was studied in northern Montana. Tress on five 0.4-ha plots were sprayed with lindane at 5.5 kg/ha (AI) in a simulated operational program to protect lodgepole pine from bark beetles. Sprayed plots and paired control plots were sampled before spray application and five times after treatment over a 2-yr period. Numbers of immature specimens changed more than numbers of adults. Both were significantly depressed 113 days after treatment. Two superfamilies were significantly affected after spraying. Of five measures of community structure, none demonstrated an effect; however, the powers of the statistical tests were quite low. The importance of statistical power in studies of effect of pesticides on nontarget species is discussed. Because the observed effects were short-lived and of relatively small amplitude, we conclude it is unlikely there is a lasting effect on the oribatid community. JF - Environmental Entomology AU - Hoy, J B AU - Shea, P J AD - Pacific Southwest Res. Stn., Forest Serv., USDA, P.O. Box 245, Berkeley, CA 94701, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 745 EP - 750 VL - 21 IS - 4 SN - 0046-225X, 0046-225X KW - lindane KW - Ecology Abstracts; Entomology Abstracts KW - insecticides KW - pest control KW - Oribatida KW - Acari KW - USA, Montana KW - nontarget organisms KW - D 04660:Arachnids KW - D 04803:Pollution effects KW - Z 05205:Populations & general ecology KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16312824?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Area-wide+effect+on+oribatid+mites+%28Acari%29+following+application+of+lindane+for+protection+of+lodgepole+pine+from+bark+beetle+attack.&rft.au=Hoy%2C+J+B%3BShea%2C+P+J&rft.aulast=Hoy&rft.aufirst=J&rft.date=1992-01-01&rft.volume=21&rft.issue=4&rft.spage=745&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Oribatida; Acari; USA, Montana; insecticides; nontarget organisms; pest control ER - TY - JOUR T1 - Influence of maternal age and host deprivation on egg production and parasitization by Microplitis croceipes (Hym.: Braconidae). AN - 16312395; 2834244 AB - The effect of maternal age and host Heliothis virescens (F.) deprivation on egg production and allocation by Microplitis croceipes (Cresson) was determined in the laboratory on 0.5, 1.0, 3.0, 6.0, 9.0, and 12.0 days old parasitoids. In host-deprived parasitoids, newly-emerged (0.5-day old) females produced significantly fewer eggs than older ones; egg production peaked 3 to 6 days after emergence and declined thereafter. However, the number of eggs found in undeprived parasitoids at various ages suggested a cyclical pattern of egg production. The rate of parasitization by host-deprived M. croceipes was higher in 1.0 to 6.0 days old than in newly emerged or older females and was correlated strongly with egg production (r = 0.93). The first observation on premature larval hatching in M. croceipes was documented. JF - Entomophaga AU - Navasero, R AU - Elzen, G AD - Southern Field Crop Insect Manage. Lab., USDA, ARS, P.O. Box 346, Stoneville, MI 38776, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 37 EP - 44 VL - 37 IS - 1 SN - 0013-8959, 0013-8959 KW - host-parasite interaction KW - Ecology Abstracts; Entomology Abstracts KW - Lepidoptera KW - Braconidae KW - Microplitis croceipes KW - egg production KW - parasitism KW - Noctuidae KW - Hymenoptera KW - Heliothis virescens KW - Z 05201:Parasitism: entomophagous KW - D 04659:Insects KW - Z 05192:Reproductive behavior UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16312395?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Entomophaga&rft.atitle=Influence+of+maternal+age+and+host+deprivation+on+egg+production+and+parasitization+by+Microplitis+croceipes+%28Hym.%3A+Braconidae%29.&rft.au=Navasero%2C+R%3BElzen%2C+G&rft.aulast=Navasero&rft.aufirst=R&rft.date=1992-01-01&rft.volume=37&rft.issue=1&rft.spage=37&rft.isbn=&rft.btitle=&rft.title=Entomophaga&rft.issn=00138959&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Microplitis croceipes; Heliothis virescens; Hymenoptera; Braconidae; Lepidoptera; Noctuidae; parasitism; egg production ER - TY - JOUR T1 - Aquatic arthropods in California rice paddies: Effects of water-drainage versus continuous-flood regimes on abundance and species composition. AN - 16310717; 2823996 AB - In conjunction with experiments to evaluate water drainage as a control method for the rice water weevil, Lissorhoptrus oryzophilus , studies were performed to compare the abundance and species composition of aquatic arthropods in two sets of continuously flooded and temporarily drained but reflooded rice, Oryza sativa , paddies. A total of 1,736 individuals representing 22 arthropod taxa was collected. Few differences in abundance were detected; however, Notonecta spp. were significantly more abundant in reflooded paddies. Percentage similarity (PS) between paired treatments was > 0.50 on all but one date; relatively high PS values on the first sampling dates suggest that the aquatic arthropod community is able to recover rapidly following reflooding. Several taxa appear to possess traits that enhance survival in a rice paddy subjected to temporary drainage. Implications are discussed for the wide-scale use of drainage on California rice acreage. JF - Environmental Entomology AU - Hesler, L S AU - Grigarick, AL AD - Northern Grain Insects Res. Lab., USDA-ARS, Brookings, SD 57006, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 731 EP - 736 VL - 21 IS - 4 SN - 0046-225X, 0046-225X KW - USA, California, Biggs KW - community structure KW - cultural control KW - nontarget organisms KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts; Entomology Abstracts KW - flooding KW - community composition KW - aquatic animals KW - Freshwater KW - pest control KW - USA, California KW - Insecta KW - agriculture KW - Oryza sativa KW - rice fields KW - Arthropoda KW - water levels KW - abundance KW - Q1 08463:Habitat community studies KW - Z 05210:Aquatic entomology KW - Q1 08485:Species interactions: pests and control KW - D 04710:Control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16310717?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Aquatic+arthropods+in+California+rice+paddies%3A+Effects+of+water-drainage+versus+continuous-flood+regimes+on+abundance+and+species+composition.&rft.au=Hesler%2C+L+S%3BGrigarick%2C+AL&rft.aulast=Hesler&rft.aufirst=L&rft.date=1992-01-01&rft.volume=21&rft.issue=4&rft.spage=731&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - flooding; community composition; water levels; pest control; aquatic animals; agriculture; rice fields; abundance; cultural control; community structure; nontarget organisms; Arthropoda; Oryza sativa; Insecta; USA, California; Freshwater ER - TY - JOUR T1 - Hog cholera diagnostic techniques. AN - 16307557; 2832857 AB - Clinical signs and lesions can sometimes provide the basis for a presumptive diagnosis of hog cholera (HC). However, an accurate diagnosis requires laboratory testing. The usual procedure for the detection of viral antigen is the examination of cryostat sections stained with fluorescein-conjugated HC antiserum. A more definitive technique is isolation of the virus in PK-15 cell cultures and identification of the viral antigen in cells using an HC fluorescent antibody conjugate. Hog cholera surveillance must rely on serology. The fluorescent antibody virus neutralization (FAVN) test is the classical technique, and HC and BVD antibody can usually be differentiated if HC-positive serum samples are tested against both viruses. Recently the enzyme-linked immunosorbent assay (ELISA) and peroxidase-labeled antibody tests have become the commonly used techniques. JF - Comparative Immunology, Microbiology and Infectious Diseases AU - Pearson, JE AD - USDA, APHIS, S&T, Natl. Vet. Serv. Lab., Diagn. Virology Lab., Ames, IA, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 213 EP - 219 VL - 15 IS - 3 SN - 0147-9571, 0147-9571 KW - Microbiology Abstracts B: Bacteriology KW - neutralization KW - isolation KW - cross-reactivity KW - hog cholera virus KW - diagnostic agents KW - enzyme-linked immunosorbent assay KW - J 02831:Techniques and reagents UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16307557?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Comparative+Immunology%2C+Microbiology+and+Infectious+Diseases&rft.atitle=Hog+cholera+diagnostic+techniques.&rft.au=Pearson%2C+JE&rft.aulast=Pearson&rft.aufirst=JE&rft.date=1992-01-01&rft.volume=15&rft.issue=3&rft.spage=213&rft.isbn=&rft.btitle=&rft.title=Comparative+Immunology%2C+Microbiology+and+Infectious+Diseases&rft.issn=01479571&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - hog cholera virus; isolation; cross-reactivity; enzyme-linked immunosorbent assay; neutralization; diagnostic agents ER - TY - JOUR T1 - Fate of starch-containing plastic films exposed in aquatic habitats. AN - 16307076; 2822911 AB - Plastic films containing cornstarch (40% dry weight) in combination with polyethylene (PE) and polyethylene-co-acrylic acid (EAA) were exposed to river and pond habitats for up to 60 days. Fourier transform infrared (FTIR) spectroscopic analysis of the starch-plastic films indicated that up to about 40% of starch in the films disappeared after 60 days' exposure. PE and EAA components were unchanged during this period. A diverse microbial biofilm quickly accumulated on each of the plastic films in both environments. Although the amount of biofilm accumulation was greater in the river environment than in the pond environment, there was little quantitative difference in the extent of biofilm formation on plastic films composed of PE, EAA, or starch-PE-EAA in either environment. All three types of plastic films were heavily colonized by a midge-fly larva (Dicrotendipes sp.) by 60 days of exposure in the aquatic environments, but only starch-containing plastic films showed any evidence of physical damage that could have been a result of ingestion of the plastic by the larvae (pond > river). JF - Current Microbiology AU - Imam, SH AU - Gould, J M AU - Gordon, SH AU - Kinney, M P AU - Ramsey, A M AU - Tosteson, T R AD - Biopolymer Res. Unit, Natl. Cent. Agric. Util. Res., Agric. Res. Serv., USDA, 1815 N. University St., Peoria, IL 61604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1 EP - 8 VL - 25 IS - 1 SN - 0343-8651, 0343-8651 KW - aquatic bacteria KW - aquatic environments KW - containing KW - starch KW - ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts; ASFA Marine Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - biodegradation KW - plastics KW - films KW - Freshwater KW - rivers KW - ponds KW - biofilms KW - aquatic environment KW - Q5 08503:Characteristics, behavior and fate KW - D 04310:Freshwater KW - Q4 27480:Environmental Applications/Impact KW - A 01016:Microbial degradation KW - J 02905:Water KW - J 02722:Biodegradation, growth, nutrition and leaching UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16307076?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Current+Microbiology&rft.atitle=Fate+of+starch-containing+plastic+films+exposed+in+aquatic+habitats.&rft.au=Imam%2C+SH%3BGould%2C+J+M%3BGordon%2C+SH%3BKinney%2C+M+P%3BRamsey%2C+A+M%3BTosteson%2C+T+R&rft.aulast=Imam&rft.aufirst=SH&rft.date=1992-01-01&rft.volume=25&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Current+Microbiology&rft.issn=03438651&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - ponds; biodegradation; plastics; biofilms; films; rivers; aquatic environment; starch; aquatic bacteria; containing; Freshwater ER - TY - JOUR T1 - Populations of Salmonella typhimurium in internal organs of experimentally infected carrier swine. AN - 16306277; 2832999 AB - Experiments were conducted to determine comparative populations of Salmonella typhimurium in the most commonly infected body organs of long-term carrier swine. Results of that study provided information indicating the locations in the body that probably should be targeted in efforts to reduce or eliminate the Salmonella carrier state. The objective of the study reported here was to determine the populations of S. typhimurium in tonsils, ileum, cecum, colon, mandibular lymph nodes, and ileocolic lymph nodes of experimentally infected long-term carrier swine. JF - American Journal of Veterinary Research AU - Wood, R L AU - Rose, R AD - Natl. Anim. Dis. Cent., Agric. Res. Serv., USDA, P.O. Box 70, Ames, IA 50010, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 653 EP - 658 VL - 53 IS - 5 SN - 0002-9645, 0002-9645 KW - tonsils KW - pigs KW - Microbiology Abstracts B: Bacteriology KW - gastrointestinal tract KW - gnotobiotics KW - lymph nodes KW - infection KW - Salmonella typhimurium KW - J 02862:Infection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16306277?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Journal+of+Veterinary+Research&rft.atitle=Populations+of+Salmonella+typhimurium+in+internal+organs+of+experimentally+infected+carrier+swine.&rft.au=Wood%2C+R+L%3BRose%2C+R&rft.aulast=Wood&rft.aufirst=R&rft.date=1992-01-01&rft.volume=53&rft.issue=5&rft.spage=653&rft.isbn=&rft.btitle=&rft.title=American+Journal+of+Veterinary+Research&rft.issn=00029645&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Salmonella typhimurium; infection; gnotobiotics; gastrointestinal tract; lymph nodes ER - TY - JOUR T1 - Influence of conidial color on inactivation of several entomogenous fungi (Hyphomycetes) by simulated sunlight. AN - 16302900; 2813175 AB - Entomogeneous fungi with pigmented conidia varying from black to white (Aspergillus niger , black; mutant A. niger cinnamomeus , tan; Metarhizium anisopliae , dark green; Nomuraea rileyi , blue-green; mutant N. rileyi , yellow; and Beauveria bassiana , white) were exposed to simulated sunlight (SUV) for 2, 4, 8, 16, 24, and 32 h. The black conidia of A. niger were significantly more stable (14.8 plus or minus 2.7 h) to SUV than the lighter pigmented conidia of all the other isolates. The half-life of the other isolates ranged from 1.1 plus or minus 0.2 h (yellow conidia of N. rileyi ) to 2.0 plus or minus 0.6 h (tan-colored conidia of A. niger cinnamomeus ). Also, dry conidia of N. rileyi were more stable to SUV (half-life of 2.4 plus or minus 0.4 h) than wetted conidia (half-life of 1.6 plus or minus 0.2 h). Because black-pigmented conidia were more tolerant to SUV, it may be possible to incorporate, by selection or genetic engineering, this phenotypic character into potential mycopesticides. JF - Environmental Entomology AU - Ignoffo, C M AU - Garcia, C AD - Biol. Control Insects Res. Lab., USDA-ARS, Columbia, MO 65205, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 913 EP - 917 VL - 21 IS - 4 SN - 0046-225X, 0046-225X KW - colour KW - Biotechnology and Bioengineering Abstracts; Entomology Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - inactivation KW - biological control KW - U.V. radiation KW - pigmentation KW - conidia KW - inoculum KW - Hyphomycetes KW - sunlight KW - entomopathogenic fungi KW - A 01014:Others KW - Z 05182:Pathology KW - W2 32445:Pest control KW - K 03088:Fungi: animal KW - W 30965:Miscellaneous, Reviews KW - K 03063:Effects of physical & chemical factors UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16302900?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Influence+of+conidial+color+on+inactivation+of+several+entomogenous+fungi+%28Hyphomycetes%29+by+simulated+sunlight.&rft.au=Ignoffo%2C+C+M%3BGarcia%2C+C&rft.aulast=Ignoffo&rft.aufirst=C&rft.date=1992-01-01&rft.volume=21&rft.issue=4&rft.spage=913&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - inactivation; U.V. radiation; biological control; pigmentation; conidia; inoculum; sunlight; entomopathogenic fungi; Hyphomycetes ER - TY - JOUR T1 - Molecular characterization of 6-phosphofructo-1-kinase purified from Lymantria dispar . AN - 16301528; 2819477 AB - A single protein band with an apparent molecular size of 83 kDa was observed after SDS-polyacrylamide gel electrophoresis and a specific activity of 96 units/mg was obtained for the purified enzyme. A 45% recovery of the total enzyme activity present in the whole body homogenate was obtained. A molecular size of 330 kDa for the native enzyme was determined through gel filtration studies. At low pH (6.4) the gypsy moth larval enzyme dissociated into inactive dimers. The enzyme displayed a sigmoidal fructose-6-phosphate saturation curve and was inhibited by high concentrations of ATP. Addition of fructose-2,6-bisphosphate decreased the cooperativity towards fructose-6-phosphate and relieved inhibition by high concentrations of ATP. AMP, ADP and cyclic-AMP were all activators of the gypsy moth enzyme with AMP being the greatest effector. Citrate, phosphoenolpyruvate and 3-phosphoglycerate were very poor inhibitors. JF - Insect Biochemistry and Molecular Biology AU - Valaitis AU - Kemp, R G AD - USDA Forest Serv., Northeast. Forest Exp. Stn., 359 Main Rd., Delaware, OH 43015, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 481 EP - 489 VL - 22 IS - 5 SN - 0965-1748, 0965-1748 KW - 6-phosphofructo-1-kinase KW - Lepidoptera KW - Lymantria dispar KW - Lymantriidae KW - characterization KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Entomology Abstracts KW - Z 05173:Biochemistry & metabolism (incl. fat body) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16301528?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Insect+Biochemistry+and+Molecular+Biology&rft.atitle=Molecular+characterization+of+6-phosphofructo-1-kinase+purified+from+Lymantria+dispar+.&rft.au=Valaitis%3BKemp%2C+R+G&rft.aulast=Valaitis&rft.aufirst=&rft.date=1992-01-01&rft.volume=22&rft.issue=5&rft.spage=481&rft.isbn=&rft.btitle=&rft.title=Insect+Biochemistry+and+Molecular+Biology&rft.issn=09651748&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - characterization ER - TY - JOUR T1 - Structure, organization, and transcription of a cellobiohydrolase gene cluster from Phanerochaete chrysosporium . AN - 16301425; 2815523 AB - Restriction mapping and sequence analysis of cosmid clones revealed a cluster of three cellobiohydrolase genes in Phanerochaete chrysosporium. P. chrysosporium cbh1-1 and cbh1-2 are separated by only 750 bp and are located approximately 14 kb upstream from a cellulase gene previously cloned from P. chrysosporium . Within a well-conserved region, the deduced amino acid sequences of P. chrysosporium cbh-1 and cbh1-2 are, respectively, 80 and 69% homologous to that of the Trichoderma reesei cellobiohydrolase I gene. The conserved cellulose-binding domain typical of microbial cellulases is absent from cbh-1. Transcript levels of the three P. chrysosporium genes varied substantially, depending on culture conditions. cbh-1 and cbh-2 were not induced in the presence of cellulose, nor did they appear to be subject to glucose repression. Therefore, aspects of the chromosomal organization, structure, and transcription of these genes are unlike those of any previously described cellulase genes. JF - Applied and Environmental Microbiology AU - Covert, S F AU - Wymelenberg, A V AU - Cullen, D AD - Microb. and Biochem. Technol., Forest Prod. Lab., Forest Serv., USDA, 1 Gifford Pinchot Dr., Madison, WI 53705-2398, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 2168 EP - 2175 VL - 58 IS - 7 SN - 0099-2240, 0099-2240 KW - effects on KW - cbh1-1 gene KW - cbh1-2 gene KW - cellobiohydrolase KW - Phanerochaete chrysosporium KW - gene expression KW - genes KW - media (culture) KW - nucleotide sequence KW - restriction endonuclease mapping KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - K 03079:Fungi KW - W 30134:Microorganisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16301425?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Structure%2C+organization%2C+and+transcription+of+a+cellobiohydrolase+gene+cluster+from+Phanerochaete+chrysosporium+.&rft.au=Covert%2C+S+F%3BWymelenberg%2C+A+V%3BCullen%2C+D&rft.aulast=Covert&rft.aufirst=S&rft.date=1992-01-01&rft.volume=58&rft.issue=7&rft.spage=2168&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Phanerochaete chrysosporium; media (culture); genes; restriction endonuclease mapping; nucleotide sequence; gene expression ER - TY - JOUR T1 - Field evaluation of predation on Lygus hesperus (Hemiptera: Miridae) using a species- and stage-specific monoclonal antibody. AN - 16299978; 2820465 AB - Whole-body macerates of field-collected insects were examined to identify qualitatively hemipteran predators of Lygus hesperus Knight eggs and adult females using an enzyme-linked immunosorbent assay (ELISA). A L. hesperus species- and egg-specific monoclonal antibody (MAB) was used to detect the presence of L. hesperus egg antigen in these predators. The majority of the polyphagous predators assayed did not have L. hesperus egg antigen in their systems, indicating that they had not preyed on L. hesperus eggs or adult (gravid) females. Additionally, we tested the sensitivity of this MAB and the ELISA assay to L. hesperus eggs of variable ages in the laboratory. Younger eggs were more responsive to the MAB than older eggs. JF - Environmental Entomology AU - Hagler, J R AU - Cohen, A C AU - Bradley-Dunlop, D AU - Enriquez, F J AD - Western Cotton Res. Lab., USDA-ARS, Phoenix, AZ 85040, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 896 EP - 900 VL - 21 IS - 4 SN - 0046-225X, 0046-225X KW - Heteroptera KW - Ecology Abstracts; Entomology Abstracts KW - predation KW - Miridae KW - enzyme-linked immunosorbent assay KW - Lygus hesperus KW - serology KW - Insecta KW - Z 05205:Populations & general ecology KW - D 04001:Methodology - general KW - D 04659:Insects KW - Z 05156:Techniques UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16299978?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Field+evaluation+of+predation+on+Lygus+hesperus+%28Hemiptera%3A+Miridae%29+using+a+species-+and+stage-specific+monoclonal+antibody.&rft.au=Hagler%2C+J+R%3BCohen%2C+A+C%3BBradley-Dunlop%2C+D%3BEnriquez%2C+F+J&rft.aulast=Hagler&rft.aufirst=J&rft.date=1992-01-01&rft.volume=21&rft.issue=4&rft.spage=896&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lygus hesperus; Insecta; Miridae; predation; serology; enzyme-linked immunosorbent assay ER - TY - JOUR T1 - Mosquito (Diptera: Culicidae) adulticide drift into wildlife refuges of the Florida Keys. AN - 16297840; 2818521 AB - Drift residues of naled and fenthion, which were applied for mosquito control, were sampled with alpha -cellulose pads in pineland and hammock ecosystems of the Florida Keys in 1989. These included habitats of state and federally protected insect and cactus species on wildlife refuges with no-spray zones. Naled residues were detected up to 750 m downwind in a no-spray zone in pinelands 6 h after application to adjacent target areas. Fenthion residues were detected up to 50 m downwind in hammock 15 min after application to adjacent target areas. In controlled residue degradation experiments, technical naled did not disappear significantly from pads suspended vertically from wires or laid flat on the substrate over a 240-min period. Fenthion did not disappear significantly from pads laid on the substrate but did disappear partly from pads suspended from wires. JF - Environmental Entomology AU - Hennessey, M K AU - Nigg, H N AU - Habeck, D H AD - USDA-ARS, 13601 Old Cutler Rd., Miami, FL 33158, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 714 EP - 721 VL - 21 IS - 4 SN - 0046-225X, 0046-225X KW - aquatic insects KW - pesticide residues KW - pollution dispersion KW - refuges KW - ASFA 3: Aquatic Pollution & Environmental Quality; Entomology Abstracts KW - insecticides KW - Brackish KW - Culicidae KW - Freshwater KW - USA, Florida, Florida Keys KW - nature conservation KW - pest control KW - Diptera KW - Q5 08523:Conservation, wildlife management and recreation KW - Z 05206:Medical & veterinary entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16297840?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Agricultural+and+Food+Chemistry&rft.atitle=Electrophoretic+analysis+of+cationic+proteins+extracted+from+aflatoxin-resistant%2Fsusceptible+varieties+of+corn&rft.au=Neucere%2C+J+N&rft.aulast=Neucere&rft.aufirst=J&rft.date=1992-01-01&rft.volume=40&rft.issue=8&rft.spage=1422&rft.isbn=&rft.btitle=&rft.title=Journal+of+Agricultural+and+Food+Chemistry&rft.issn=00218561&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - nature conservation; insecticides; pest control; pollution dispersion; refuges; aquatic insects; pesticide residues; Culicidae; Diptera; USA, Florida, Florida Keys; Brackish; Freshwater ER - TY - JOUR T1 - Biology and host specificity of Oncochila simplex (Hem.: Tingidae), a candidate for the biological control of leafy spurge Euphorbia esula L. "complex". AN - 16297520; 2820041 AB - In no-choice tests, neonate nymphs of O. simplex developed on plants of the genus Euphorbia (subgenus Esula ) and on lettuce and corn. In field trials, this lacebug completed a generation on Euphorbia lathyris L., but not on lettuce and corn. The development of neonate nymphs under forced conditions on lettuce and corn does not necessary indicate that these plants are suitable hosts in nature. Our hypothesis of the restricted host range of O. simplex is also supported by the literature, in which there are no reports of this species from lettuce, corn or other plants of agricultural importance. We conclude that O. simplex should be introduced as a biological control agent against leafy spurge in the United States. JF - Entomophaga AU - Pecora, P AU - Rizza, A AU - Stazi, M AD - European Biol. Control Lab., USDA-ARS, BP 4168, Agropolis, 34092 Montpellier, France Y1 - 1992 PY - 1992 DA - 1992 SP - 79 EP - 89 VL - 37 IS - 1 SN - 0013-8959, 0013-8959 KW - Oncochila simplex KW - Heteroptera KW - Ecology Abstracts; Entomology Abstracts KW - biological control KW - host specificity KW - Euphorbia esula KW - Tingidae KW - biology KW - Z 05205:Populations & general ecology KW - D 04710:Control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16297520?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Entomophaga&rft.atitle=Biology+and+host+specificity+of+Oncochila+simplex+%28Hem.%3A+Tingidae%29%2C+a+candidate+for+the+biological+control+of+leafy+spurge+Euphorbia+esula+L.+%22complex%22.&rft.au=Pecora%2C+P%3BRizza%2C+A%3BStazi%2C+M&rft.aulast=Pecora&rft.aufirst=P&rft.date=1992-01-01&rft.volume=37&rft.issue=1&rft.spage=79&rft.isbn=&rft.btitle=&rft.title=Entomophaga&rft.issn=00138959&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Euphorbia esula; Tingidae; biological control; biology; host specificity ER - TY - JOUR T1 - Effect of temperature on life history characteristics of Anisopteromalus calandrae (Hymenoptera: Pteromalidae) parasitizing maize weevil larvae in corn kernels. AN - 16296138; 2820488 AB - The second generation of Anisopteromalus calandrae (Howard) collected from commercial stored corn in South Carolina was reared at constant temperatures of 20, 25, 30, and 35 degree C at 63% RH and a 12:12 (L:D) photoperiod. Hosts were medium to large larvae of Sitophilus zeamais Motschulsky reared on corn (21-23 d old at 25 degree C, 63% RH). Daily production of viable progeny, sex ratio, adult female survivorship, and development time were measured to calculate net reproductive rate (R sub(o)), generation time (T), intrinsic rate of increase (r sub(m)), and female adult life expectancy. Female longevity was greatest at 20 degree C (14.5 d median) and shortest at 30 and 35 degree C (6 d). Median female development time ranged from 44 d at 20 degree C to 10 d at 35 degree C. Mean number of progeny produced per female over her lifetime increased from 10.4 at 20 degree C to 42.6 at 35 degree C. JF - Environmental Entomology AU - Smith, L AD - Stored-Prod. Insects Res. and Dev. Lab., USDA-ARS, P.O. Box 22909, Svannah, GA 31403, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 877 EP - 887 VL - 21 IS - 4 SN - 0046-225X, 0046-225X KW - temperature KW - Ecology Abstracts; Entomology Abstracts KW - biological control KW - development KW - Anisopteromalus calandrae KW - parasitoids KW - Hymenoptera KW - Pteromalidae KW - D 04659:Insects KW - Z 05201:Parasitism: entomophagous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16296138?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Effect+of+temperature+on+life+history+characteristics+of+Anisopteromalus+calandrae+%28Hymenoptera%3A+Pteromalidae%29+parasitizing+maize+weevil+larvae+in+corn+kernels.&rft.au=Smith%2C+L&rft.aulast=Smith&rft.aufirst=L&rft.date=1992-01-01&rft.volume=21&rft.issue=4&rft.spage=877&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Anisopteromalus calandrae; Pteromalidae; Hymenoptera; parasitoids; biological control; development ER - TY - JOUR T1 - Genetic strategies for reforestation in the face of global climate change. AN - 16295720; 2819260 AB - If global warming materializes as projected, natural or artificial regeneration of forests with local seed sources will become increasingly difficult. However, global warming is far from a certainty and predictions of its magnitude and timing vary at least twofold. In the face of such uncertainty, reforestation strategies should emphasize conservation, diversification, and broader deployment of species, seed sources, and families. Planting programs may have to deploy non-local seed sources, imported from further south or from lower elevations, which necessitates a system for conserving native gene pools in seed banks or clone banks. Planting a diverse array of species or seed sources is a hedge against the uncertainty inherent in current projections of warming. Most tree improvement programs already stress genetic diversity and deployment of multi-progeny mixes, but may better prepare for climate change by testing selections in an even wider set of environments than is now the case. JF - Forest Ecology and Management AU - Ledig, F T AU - Kitzmiller, J H AD - Inst. Forest Genet., Pac. Southwest Res. Stn., USDA Forest Serv., P.O. Box 245, Berkeley, CA 94701, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 153 EP - 169 VL - 50 IS - 1-2 SN - 0378-1127, 0378-1127 KW - Genetics Abstracts; Ecology Abstracts KW - strategy KW - environmental restoration KW - climatic changes KW - genetic engineering KW - reforestation KW - ecological genetics KW - global warming KW - G 07270:Ecological genetics KW - D 04715:Reclamation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16295720?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Genetic+strategies+for+reforestation+in+the+face+of+global+climate+change.&rft.au=Ledig%2C+F+T%3BKitzmiller%2C+J+H&rft.aulast=Ledig&rft.aufirst=F&rft.date=1992-01-01&rft.volume=50&rft.issue=1-2&rft.spage=153&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - environmental restoration; reforestation; genetic engineering; strategy; global warming; climatic changes; ecological genetics ER - TY - JOUR T1 - Tracing black cutworm and armyworm (Lepidoptera: Noctuidae) northward migration using Pithecellobium and Calliandra pollen. AN - 16294557; 2814242 AB - Identifying the pollen attached to black cutworm, Agrotis ipsilon (Hufnagel), and armyworm, Pseudaletia unipuncta (Haworth), moths provided a powerful tool for recognizing food plants used by these noctuids before initiation of long-range movement. Pollen was found primarily on the proboscis and in decreasing frequency on the eyes, legs, and antennae. Fourteen moths collected in Iowa and Missouri were marked with the exotic pollens Pithecellobium spp. or Calliandra spp, or both. These plants are indigenous to southern climes, and the closes site of origin to the capture points is in southern Texas. From the closest plant location in Texas, these moths traveled 1,300 km to central Missouri, 1,450 km to northern Missouri, and 1,600 km to central Iowa. Moths captured in March probably originated greater than or equal to 600 km farther to the south than those captured in late April and May. JF - Environmental Entomology AU - Hendrix, WH III AU - Showers, W B AD - Corn Insect Res. Unit, USDA-ARS, Ankeny, IA 50021, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1092 EP - 1096 VL - 21 IS - 5 SN - 0046-225X, 0046-225X KW - Calliandra KW - Animal Behavior Abstracts; Entomology Abstracts; Ecology Abstracts KW - Pithecellobium KW - Agrotis ipsilon KW - Lepidoptera KW - pollen KW - food plants KW - Noctuidae KW - migration KW - North America KW - attachment KW - tracking KW - Pseudaletia unipuncta KW - Z 05204:Dispersal & migration KW - D 04659:Insects KW - Y 25653:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16294557?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Tracing+black+cutworm+and+armyworm+%28Lepidoptera%3A+Noctuidae%29+northward+migration+using+Pithecellobium+and+Calliandra+pollen.&rft.au=Hendrix%2C+WH+III%3BShowers%2C+W+B&rft.aulast=Hendrix&rft.aufirst=WH&rft.date=1992-01-01&rft.volume=21&rft.issue=5&rft.spage=1092&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Agrotis ipsilon; Pseudaletia unipuncta; Pithecellobium; Noctuidae; Lepidoptera; North America; tracking; migration; attachment; pollen; food plants ER - TY - JOUR T1 - Recognition of transition metal ions by peptides. Identification of specific metal-binding peptides in proteolytic digest maps by UV laser desorption time-of-flight mass spectrometry. AN - 16291940; 2814679 AB - Metal-binding peptides in proteolytic digest maps have been identified by matrix-assisted UV laser desorption time-of-flight mass spectrometry (LDTOF-MS). The plasma and milk metal transport protein chosen to demonstrate this process, histidine-rich glycoprotein, was purified and then digested with trypsin; the cleavage products were analyzed by LDTOF-MS with dihydroxybenzoic acid as the matrix. The selective interaction of specific peptides with one or more Cu atoms was observed when Cu(II) ions were added to the digest mixture. JF - FEBS Letters AU - Hutchens, T W AU - Nelson, R W AU - Yip, Tai-Tung AD - USDA/ARS Children's Nutr. Cent., Baylor Coll. Med., Dep. Pediatr., 1100 Bates, Houston, TX 77030, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 99 EP - 102 VL - 296 IS - 1 SN - 0014-5793, 0014-5793 KW - copper KW - histidine-rich glycoprotein KW - man KW - mechanisms KW - plasma KW - regulation KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16291940?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=FEBS+Letters&rft.atitle=Recognition+of+transition+metal+ions+by+peptides.+Identification+of+specific+metal-binding+peptides+in+proteolytic+digest+maps+by+UV+laser+desorption+time-of-flight+mass+spectrometry.&rft.au=Hutchens%2C+T+W%3BNelson%2C+R+W%3BYip%2C+Tai-Tung&rft.aulast=Hutchens&rft.aufirst=T&rft.date=1992-01-01&rft.volume=296&rft.issue=1&rft.spage=99&rft.isbn=&rft.btitle=&rft.title=FEBS+Letters&rft.issn=00145793&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Differences in Monterey pine pest populations in urban and natural forests. AN - 16278433; 2803504 AB - Monterey pines (Pinus radiata D. Don) planted along streets (i.e. street trees) within Carmel, California and its immediate vicinity, and naturally grown Monterey pine within adjacent native stands, were sampled with regard to intensity of visual stress characteristics, western dwarf mistletoe (Arceuthobium campylopodum f. typicum (Engelm.) Gill), and western gall rust (Peridermium harknessii J.P. Moore) infection, and frequency of sequoia pitch moth (Synanthedon sequoiae Hy. Edw.) and red turpentine beetle (Dendroctonus valens LeConte) attacks. The street trees were stratified into four geographic zones: one highly urban zone, two urban zones, and one suburban zone. Dwarf mistletoe infections generally were more common in the forest stand than on street trees in the highly urban and urban zones for trees less than 50 cm dbh and were positively correlated with stand density. Pitch moth attacks were more common in all street trees zones than the natural forest, and were positively correlated with amount of pruning and wounding, and negatively correlated with amount of crown closure and stress. JF - Forest Ecology and Management AU - Nowak, D J AU - McBride, J R AD - USDA Forest Serv., 5801 N. Pulaski Rd., Build. C, Chicago, IL, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 133 EP - 144 VL - 50 IS - 1-2 SN - 0378-1127, 0378-1127 KW - Synanthedon sequoiae KW - Peridermium harknessii KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology; Entomology Abstracts; Ecology Abstracts KW - Scolytidae KW - Sesiidae KW - USA, California, Carmel KW - Lepidoptera KW - pest status KW - rust KW - urban environments KW - Coleoptera KW - Pinus radiata KW - natural vegetation KW - Dendroctonus valens KW - K 03089:Fungi: plant KW - Z 05203:Relations to plants KW - D 04659:Insects KW - A 01045:Diseases & treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16278433?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Differences+in+Monterey+pine+pest+populations+in+urban+and+natural+forests.&rft.au=Nowak%2C+D+J%3BMcBride%2C+J+R&rft.aulast=Nowak&rft.aufirst=D&rft.date=1992-01-01&rft.volume=50&rft.issue=1-2&rft.spage=133&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Sesiidae; Scolytidae; Lepidoptera; Pinus radiata; Dendroctonus valens; Coleoptera; USA, California, Carmel; pest status; natural vegetation; urban environments; rust ER - TY - JOUR T1 - Field density estimates of Heliothis virescens (Lepidoptera: Noctuidae) from catches in sex pheromone-baited traps. AN - 16277907; 2803016 AB - The number of male tobacco budworm, Heliothis virescens (Fabricius), trapped on a daily basis in pheromone traps in individual cotton fields was compared to male and female adult densities measured by nocturnal field sampling. The decline of trap efficiency with increasing female density was demonstrated. A simple relationship for estimating H. virescens male density from the numbers trapped was derived as P male = (E sub(2)/13) super(2), where P male is density and E sub(2) is the two-day exponential average of number trapped. The standard error for the regression translates to an accuracy ratio of 2:1. The results compare favourably with previous research using mark-release-recapture methodology. Application of the formula is discussed. JF - Bulletin of Entomological Research AU - Witz, JA AU - Lopez, JD Jr AU - Latheef, MA AD - USDA-ARS, Crop Insect Pests Manage. Res. Unit, Rt. 5, Box 808, College Station, TX 77845, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 281 EP - 286 VL - 82 IS - 2 SN - 0007-4853, 0007-4853 KW - Ecology Abstracts; Entomology Abstracts KW - population density KW - methodology KW - Lepidoptera KW - pheromone traps KW - Noctuidae KW - Heliothis virescens KW - Z 05205:Populations & general ecology KW - D 04659:Insects KW - Z 05207:Agricultural & general applied entomology KW - D 04002:Surveying and remote sensing KW - Z 05156:Techniques UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16277907?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+Entomological+Research&rft.atitle=Field+density+estimates+of+Heliothis+virescens+%28Lepidoptera%3A+Noctuidae%29+from+catches+in+sex+pheromone-baited+traps.&rft.au=Witz%2C+JA%3BLopez%2C+JD+Jr%3BLatheef%2C+MA&rft.aulast=Witz&rft.aufirst=JA&rft.date=1992-01-01&rft.volume=82&rft.issue=2&rft.spage=281&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+Entomological+Research&rft.issn=00074853&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Heliothis virescens; Noctuidae; Lepidoptera; pheromone traps; population density; methodology ER - TY - JOUR T1 - Intra-colonial foraging specialism by honey bees (Apis mellifera ) (Hymenoptera: Apidae). AN - 16277803; 2802907 AB - Colonies of honey bees with two identifiable subfamilies were established. Returning foragers were captured and killed at two different sampling times. The mean volume and per cent soluble solids of crop contents were determined for each subfamily, as was the mean weight of the pollen pellets. No significant differences in nectar volume or concentration were detected between subfamilies within colonies. However, in a few colonies, significant subfamily by sampling-time interactions were present, suggesting that in these colonies subfamilies differed in their nectar and pollen collecting behavior at different times of day. The plant genera worked by pollen foragers were also determined. In four of six colonies, bees of different subfamilies were found to be majoring on different plant species. Implications of this intra-colonial variance in foraging behavior for colony fitness are discussed. JF - Behavioral Ecology and Sociobiology AU - Oldroyd, B P AU - Rinderer, TE AU - Buco, S M AD - USDA-ARS, Honey-Bee Breed., Genet. and Physiol. Res. Lab., 1157 Ben Hur Rd., Baton Rouge, LA 70820, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 291 EP - 295 VL - 30 IS - 5 SN - 0340-5443, 0340-5443 KW - Animal Behavior Abstracts; Entomology Abstracts; Ecology Abstracts KW - foraging behavior KW - Apis mellifera KW - food selection KW - genetic relationship KW - Hymenoptera KW - Apidae KW - division of labor KW - Z 05208:Social entomology KW - Y 25493:Insects KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16277803?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Behavioral+Ecology+and+Sociobiology&rft.atitle=Intra-colonial+foraging+specialism+by+honey+bees+%28Apis+mellifera+%29+%28Hymenoptera%3A+Apidae%29.&rft.au=Oldroyd%2C+B+P%3BRinderer%2C+TE%3BBuco%2C+S+M&rft.aulast=Oldroyd&rft.aufirst=B&rft.date=1992-01-01&rft.volume=30&rft.issue=5&rft.spage=291&rft.isbn=&rft.btitle=&rft.title=Behavioral+Ecology+and+Sociobiology&rft.issn=03405443&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Apis mellifera; Hymenoptera; Apidae; foraging behavior; food selection; genetic relationship; division of labor ER - TY - JOUR T1 - Effects of interactions among genotypically diverse nestmates on task specialization by foraging honey bees (Apis mellifera ). AN - 16277101; 2803130 AB - We present evidence supporting the hypothesis that an individual's pattern of task specialization is affected not only by her own genotype, but, indirectly, by the genotypes of her nestmates. Workers from two strains of honey bees, one selected for high pollen hoarding, the other for low pollen hoarding, were observed in colonies of their respective parent strains and in colonies of the other strain. Worker genotype and host-colony type affected foraging activity. Workers from the high strain fostered in low-strain colonies returned with pollen on 75.6% of total foraging trips, while workers from the high strain fostered in high-strain colonies returned with pollen on 53.5% of total trips. Workers from the low strain fostered in low-strain colonies returned with pollen on 34.8% of total foraging trips while workers from the low strain fostered in high-strain colonies returned with pollen on 2.6% of total trips. Similar results were obtained in a second experiment. We suggest that workers influence the behavior of their nestmates indirectly through their effects on the shared colony environment. JF - Behavioral Ecology and Sociobiology AU - Calderone, N W AU - Page, RE Jr AD - Bee Res. Lab., USDA-ARS, Build. 476, BARC-E., Beltsville, MD 20705, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 219 EP - 226 VL - 30 IS - 3-4 SN - 0340-5443, 0340-5443 KW - Animal Behavior Abstracts; Entomology Abstracts; Ecology Abstracts KW - foraging behavior KW - Apis mellifera KW - behavioral genetics KW - intraspecific relationships KW - Hymenoptera KW - Apidae KW - division of labor KW - Z 05208:Social entomology KW - Y 25453:Insects KW - D 04659:Insects KW - Y 25513:Insects KW - Z 05217:Behavioral genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16277101?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Behavioral+Ecology+and+Sociobiology&rft.atitle=Effects+of+interactions+among+genotypically+diverse+nestmates+on+task+specialization+by+foraging+honey+bees+%28Apis+mellifera+%29.&rft.au=Calderone%2C+N+W%3BPage%2C+RE+Jr&rft.aulast=Calderone&rft.aufirst=N&rft.date=1992-01-01&rft.volume=30&rft.issue=3-4&rft.spage=219&rft.isbn=&rft.btitle=&rft.title=Behavioral+Ecology+and+Sociobiology&rft.issn=03405443&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Apis mellifera; Apidae; Hymenoptera; behavioral genetics; division of labor; intraspecific relationships; foraging behavior ER - TY - JOUR T1 - Development of the phytophagous arthropod community on apple as affected by orchard management. AN - 16275284; 2802134 AB - The phytophagous arthropod community in three apple orchards was sampled for the first 5 yr (1984-1988) after planting. One orchard was unmanaged, one was partially managed with pruning and weed control, and one was under full commercial management. For the first 2 yr there were no significant differences in arthropod diversity among the three orchards. In the third and subsequent years, diversity, as measured by species richness and Williams' index, was significantly lower in the commercially managed orchard than in the two reduced management orchards. In the fifth year, the commercially managed orchard had the most uneven distribution of species abundances and the partially managed orchard the most even. Within-year evenness values were more variable in the commercially managed orchard than in either of the reduced management orchards. JF - Environmental Entomology AU - Brown, M W AU - Welker, W V AD - Appalachian Fruit Res. Stn., USDA-ARS, 45 Wiltshire Rd., Kearneysville, WV 25430, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 485 EP - 492 VL - 21 IS - 3 SN - 0046-225X, 0046-225X KW - Ecology Abstracts; Entomology Abstracts KW - agricultural practices KW - orchards KW - community development KW - Malus domestica KW - Insecta KW - Z 05205:Populations & general ecology KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16275284?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Development+of+the+phytophagous+arthropod+community+on+apple+as+affected+by+orchard+management.&rft.au=Brown%2C+M+W%3BWelker%2C+W+V&rft.aulast=Brown&rft.aufirst=M&rft.date=1992-01-01&rft.volume=21&rft.issue=3&rft.spage=485&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Insecta; Malus domestica; orchards; agricultural practices; community development ER - TY - JOUR T1 - Rangeland grasshopper (Orthoptera: Acrididae) community structure: A working hypothesis. AN - 16274560; 2802160 AB - Interspecific associations of rangeland grasshoppers studied in Gallatin Valley, Mont., during 1988-1990 when regional densities were low, showed a great deal of spatial variation. Although > 40 rangeland grasshopper species were collected valley-wide throughout this study, mean species richness at the habitat type level ranged from approximately equals 10-17; results suggest that species replacement occurred over the gradient of habitat types sampled. Based on the results of this and previous research, it appears that rangeland grasshopper communities consist of facultative assemblages of species. Because of the differences found in species composition at the habitat type level, the generalization of detailed experimental studies, beyond the habitat type level, must be done with caution. Lastly, it is clear that to understand rangeland grasshopper communities in general, large-scale observational studies designed to depict pattern must be conducted together with small-scale studies designed to elucidate process. JF - Environmental Entomology AU - Kemp, W P AD - Rangeland Insect Lab., USDA-ARS, Bozeman, MT 59717, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 461 EP - 470 VL - 21 IS - 3 SN - 0046-225X, 0046-225X KW - Ecology Abstracts; Entomology Abstracts KW - Acrididae KW - Orthoptera KW - habitat utilization KW - community structure KW - rangelands KW - USA, Montana KW - Z 05205:Populations & general ecology KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16274560?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Rangeland+grasshopper+%28Orthoptera%3A+Acrididae%29+community+structure%3A+A+working+hypothesis.&rft.au=Kemp%2C+W+P&rft.aulast=Kemp&rft.aufirst=W&rft.date=1992-01-01&rft.volume=21&rft.issue=3&rft.spage=461&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Acrididae; Orthoptera; USA, Montana; rangelands; community structure; habitat utilization ER - TY - JOUR T1 - Insect fauna of the heads and stems of native sunflowers (Asterales: Asteraceae) in eastern North Dakota. AN - 16274309; 2801668 AB - Insect fauna from the heads (capitula) and stems of six native sunflower species in eastern North Dakota and western Minnesota are reported. Eight insect species in six families of Coleoptera, Diptera, and Lepidoptera were recovered from the heads of six species of Helianthus . Heads of Helianthus annuus L. contained the greatest diversity of insect species. Insect species collected were also commonly found as pests of cultivated sunflower heads. The sunflower stem weevil, Cylindrocopturus adspersus (LeConte), was the only major insect pest of cultivated sunflower that was recovered from sunflower stems. It was most abundant in H. annuus . A single species of parasitoid, Nealiolus curculionis (Fitch), was reared from sunflower stem weevil larvae. Results suggest that some species of Helianthus have high potential as sources of insect resistance for incorporation into commercial sunflower. JF - Environmental Entomology AU - Charlet, L D AU - Brewer, G J AU - Beregovoy, V H AD - Noth. Crop Sci. Lab., USDA-ARS, State Univ. Stn., Fargo, ND 58105, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 493 EP - 500 VL - 21 IS - 3 SN - 0046-225X, 0046-225X KW - Ecology Abstracts; Entomology Abstracts KW - check lists KW - entomofauna KW - pests KW - USA, North Dakota KW - Insecta KW - Helianthus KW - D 04659:Insects KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16274309?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Insect+fauna+of+the+heads+and+stems+of+native+sunflowers+%28Asterales%3A+Asteraceae%29+in+eastern+North+Dakota.&rft.au=Charlet%2C+L+D%3BBrewer%2C+G+J%3BBeregovoy%2C+V+H&rft.aulast=Charlet&rft.aufirst=L&rft.date=1992-01-01&rft.volume=21&rft.issue=3&rft.spage=493&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Helianthus; Insecta; USA, North Dakota; pests; check lists; entomofauna ER - TY - JOUR T1 - Breeding bird communities in regenerating and mature broadleaf forests in the USA Lake States. AN - 16273900; 2805513 AB - When Lake States aspen tree canopy is removed by clearcut harvest, bird species turnover is almost complete. Bird species richness and total populations were highest in mature stands with well-developed understories and in regenerating stands about 4 years after clearcutting. However, species composition in regenerating stands was different to that in mature stands. Most bird species that are of regional concern were restricted to more mature stands. The lack of direct relationship between species richness and increasing stand age was related to compensatory trends in species populations among five foraging groups of birds. JF - Forest Ecology and Management AU - Probst, J R AU - Rakstad, D S AU - Rugg, D J AD - North Cent. Forest Exp. Stn., USDA Forest Serv., P.O. Box 898, Rhinelander, WI 54501, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 43 EP - 60 VL - 49 IS - 1-2 SN - 0378-1127, 0378-1127 KW - USA, Lake States KW - Ecology Abstracts KW - forests KW - Aves KW - breeding KW - regeneration KW - species richness KW - species-area relation KW - community structure KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16273900?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Breeding+bird+communities+in+regenerating+and+mature+broadleaf+forests+in+the+USA+Lake+States.&rft.au=Probst%2C+J+R%3BRakstad%2C+D+S%3BRugg%2C+D+J&rft.aulast=Probst&rft.aufirst=J&rft.date=1992-01-01&rft.volume=4&rft.issue=3&rft.spage=227&rft.isbn=&rft.btitle=&rft.title=Journal+of+Aquatic+Animal+Health&rft.issn=08997659&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; regeneration; forests; species-area relation; breeding; community structure; species richness ER - TY - JOUR T1 - Nucleotide sequence of the second exon of a BoLA-DQB gene. AN - 16273294; 2798400 AB - The accumulation of nucleotide sequence information on the bovine mHC class II genes is important for defining the relations between genetic polymorphisms and disease. The outermost domain ( alpha 1 or beta 1) coded for by the second exon is of particular interest because it is believed this region of the protein forms the antigen-binding site. In this study, the nucleotide sequence of the beta 1 exon and 40 bp of flanking intron of a BoLa-DQB clone, Q2, has been determined. The nucleotide sequence is compared to the corresponding sequences of two previously described bovine DQB clones, Y1 and Q1. JF - Animal Genetics AU - Stone, R T AU - Muggli-Cockett, N E AD - USDA-ARS, US Meat Anim. Res. Cent., P.O. Box 166, Clay Cent., NE 68933-0166, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 273 EP - 274 VL - 23 IS - 3 SN - 0268-9146, 0268-9146 KW - DQB loci KW - Q2 locus KW - amino acid sequence KW - cDNA KW - cattle KW - genes KW - histocompatibility locus BoLA KW - nucleotide sequence KW - predictions KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Biochemistry Abstracts 2: Nucleic Acids; Genetics Abstracts; Immunology Abstracts KW - N 14640:Structure & sequence KW - F 06824:Animal KW - G 07414:GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16273294?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Animal+Genetics&rft.atitle=Nucleotide+sequence+of+the+second+exon+of+a+BoLA-DQB+gene.&rft.au=Stone%2C+R+T%3BMuggli-Cockett%2C+N+E&rft.aulast=Stone&rft.aufirst=R&rft.date=1992-01-01&rft.volume=23&rft.issue=3&rft.spage=273&rft.isbn=&rft.btitle=&rft.title=Animal+Genetics&rft.issn=02689146&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - nucleotide sequence; cDNA; amino acid sequence; genes ER - TY - JOUR T1 - Fowl cholera epornitic: Antigenic characterization and virulence of selected Pasteurella multocida isolates. AN - 16273273; 2788640 AB - An epornitic of fowl cholera involving turkey flocks of several farms within a 15-mile radius in Utah was studied. Pasteurella multocida strains isolated from birds in affected flocks were antigenically characterized as A:1, A:3, and B:4, based on capsular sero-grouping somatic serotyping results. Experimental exposure of poults with each of two strains representing the rarely reported capsular group B indicated that both were virulent. JF - Avian Diseases AU - Rhoades, K R AU - Rimler, R B AU - Bagley, R A AD - USDA, Agric. Res. Serv., Natl. Anim. Dis. Cent., Ames, IA 50010, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 84 EP - 87 VL - 36 IS - 1 SN - 0005-2086, 0005-2086 KW - turkeys KW - Microbiology Abstracts B: Bacteriology KW - cholera KW - serotyping KW - virulence KW - Pasteurella multocida KW - antigenicity KW - J 02832:Antigenic properties and virulence UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16273273?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Bacteriology&rft.atitle=High-affinity+iron+uptake+systems+present+in+Erwinia+carotovora+subsp.+carotovora+include+the+hydroxamate+siderophore+aerobactin.&rft.au=Ishimaru%2C+CA%3BLoper%2C+JE&rft.aulast=Ishimaru&rft.aufirst=CA&rft.date=1992-01-01&rft.volume=174&rft.issue=9&rft.spage=2993&rft.isbn=&rft.btitle=&rft.title=Journal+of+Bacteriology&rft.issn=00219193&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pasteurella multocida; serotyping; cholera; antigenicity; virulence ER - TY - JOUR T1 - alpha -Amylases from three species of stored grain Coleoptera and their inhibition by wheat and corn proteinaceous inhibitors. AN - 16272200; 2791588 AB - Two alpha -amylase isozymes were isolated from adults of both the rice weevil, Sitophilus oryzae , and the red flour beetle, Tribolium castaneum , and a single alpha -amylase from adults of the yellow mealworm, Tenebrio molitor . All of the purified enzymes had similar amino acid compositions as well as physical and chemical properties. The apparent molecular masses ranged from 53 to 58 kDa. Circular dichroism measurements revealed approx. 33% alpha -helical content. V sub(max) and K sub(m) values ranged from 1.33 to 5.98 mM min super(-1) mg super(-1) and 0.76 to 5.57 mg ml super(-1), respectively, using starch as the substrate. An alpha -amylase inhibitor from wheat (WRP-25) inhibited all five enzymes, whereas an inhibitor from corn inhibited only enzymes from the red flour beetle and yellow mealworm. JF - Insect Biochemistry and Molecular Biology AU - Chen, Ming-Shun AU - Feng, Guohua AU - Zen, K C AU - Richardson, M AU - Valdes-Rodriguez, S AU - Reeck, G R AU - Kramer, K J AD - Grain Marketing Res. Lab., Agric. Res. Serv., USDA, 1515 College Ave., Manhattan, KS 66502, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 261 EP - 268 VL - 22 IS - 3 SN - 0965-1748, 0965-1748 KW - Coleoptera KW - Curculionidae KW - Tenebrionidae KW - Triticum aestivum KW - Zea mays KW - alpha -amylase KW - enzymatic activity KW - inhibition KW - proteins KW - stored products KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Entomology Abstracts KW - Z 05203:Relations to plants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16272200?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Insect+Biochemistry+and+Molecular+Biology&rft.atitle=alpha+-Amylases+from+three+species+of+stored+grain+Coleoptera+and+their+inhibition+by+wheat+and+corn+proteinaceous+inhibitors.&rft.au=Chen%2C+Ming-Shun%3BFeng%2C+Guohua%3BZen%2C+K+C%3BRichardson%2C+M%3BValdes-Rodriguez%2C+S%3BReeck%2C+G+R%3BKramer%2C+K+J&rft.aulast=Chen&rft.aufirst=Ming-Shun&rft.date=1992-01-01&rft.volume=22&rft.issue=3&rft.spage=261&rft.isbn=&rft.btitle=&rft.title=Insect+Biochemistry+and+Molecular+Biology&rft.issn=09651748&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - stored products; inhibition; enzymatic activity; proteins ER - TY - JOUR T1 - Use of pilocarpine-induced alimentary secretions to measure intestinal shedding of Salmonella enteritidis in chickens. AN - 16271508; 2788718 AB - A technique has been developed that uses the parasympathomimetic drug pilocarpine to induce alimentary secretions in chickens for measuring local immune responses to Salmonella enteritidis strain SE6. A study was conducted to determine if these secretions could also be used to detect intestinal SE6 shedding. In separate small experiments, alimentary secretions induced by pilocarpine alone also had significantly more SE6 isolations than did cloacal swabs on two of three sampling times examined. Direct culture of feces resulted in numerically but not significantly greater SE6 isolations than did cloacal swabs on two of three sampling times. The results indicate that induced intestinal material is a better sample source than cloacal swabs for detecting S. enteritidis intestinal infections in chickens and could have many applications in intestinal pathogenesis research. JF - Avian Diseases AU - Holt, P S AU - Porter, RE Jr AD - USDA, Agric. Res. Serv., Southeast Poultry Res. Lab., 934 College Station Rd., Athens, GA 30605, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 54 EP - 58 VL - 36 IS - 1 SN - 0005-2086, 0005-2086 KW - chickens KW - pilocarpine KW - Microbiology Abstracts B: Bacteriology KW - gastrointestinal tract KW - secretions KW - infection KW - immune response KW - contamination KW - Salmonella enteritidis KW - J 02831:Techniques and reagents UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16271508?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+Diseases&rft.atitle=Use+of+pilocarpine-induced+alimentary+secretions+to+measure+intestinal+shedding+of+Salmonella+enteritidis+in+chickens.&rft.au=Holt%2C+P+S%3BPorter%2C+RE+Jr&rft.aulast=Holt&rft.aufirst=P&rft.date=1992-01-01&rft.volume=36&rft.issue=1&rft.spage=54&rft.isbn=&rft.btitle=&rft.title=Avian+Diseases&rft.issn=00052086&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Salmonella enteritidis; infection; immune response; secretions; gastrointestinal tract; contamination ER - TY - JOUR T1 - Effects of selected secondary metabolites of Fusarium moniliforme on unscheduled synthesis of DNA by rat primary hepatocytes. AN - 16268855; 2796254 AB - The Fusarium moniliforme mycotoxins--fusarin C, fumonisin B sub(1), moniliformin and bikaverin--ware evaluated for genotoxicity by their ability to induce unscheduled DNA synthesis (UDS) in primary rat hepatocytes. Isolated hepatocytes were exposed to several concentrations of moniliformin (5.0-500 mu M), bikaverin (1.0-550 mu M), fumonisin B sub(1) (0.5-250 mu M), or fusarin C (1.0-100 mu M). Aflatoxin B sub(1), a known inducer of UDS, was included as a positive control. UDS was determined by autoradiography of cells after their exposure to ( super(3)H)thymidine. The highest doses of fusarin C and bikaverin caused cell death, but no cytotoxicity was observed in cells exposed to moniliformin or fumonisin B sub(1). Fumonisin B sub(1), moniliformin and bikaverin were not genotoxic in the UDS assay. The results of the UDS assay with fusarin C were inconclusive since a marginal effect on UDS was obtained. JF - Food and Chemical Toxicology AU - Norred, W P AU - Plattner, R D AU - Vesonder, R F AU - Bacon, C W AU - Voss, KA AD - Toxicol. and Mycotoxin Res. Unit, Richard B. Russell Agric. Res. Cent., USDA/ARS, P.O. Box 5677, Athens, GA 30601, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 233 EP - 237 VL - 30 IS - 3 SN - 0278-6915, 0278-6915 KW - unscheduled KW - rats KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Toxicology Abstracts KW - Fusarium moniliforme KW - DNA biosynthesis KW - hepatocytes KW - mycotoxins KW - K 03082:Mycotoxins KW - X 24171:Microbial UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16268855?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Food+and+Chemical+Toxicology&rft.atitle=Effects+of+selected+secondary+metabolites+of+Fusarium+moniliforme+on+unscheduled+synthesis+of+DNA+by+rat+primary+hepatocytes.&rft.au=Norred%2C+W+P%3BPlattner%2C+R+D%3BVesonder%2C+R+F%3BBacon%2C+C+W%3BVoss%2C+KA&rft.aulast=Norred&rft.aufirst=W&rft.date=1992-01-01&rft.volume=30&rft.issue=3&rft.spage=233&rft.isbn=&rft.btitle=&rft.title=Food+and+Chemical+Toxicology&rft.issn=02786915&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Fusarium moniliforme; mycotoxins; DNA biosynthesis; hepatocytes ER - TY - JOUR T1 - Roles of manganese and organic acid chelators in regulating lignin degradation and biosynthesis of peroxidases by Phanerochaete chrysosporium . AN - 16267519; 2803936 AB - We studied the effect of manganese and various organic chelators on the distribution, depolymerization, and mineralization of synthetic super(14)C-labeled lignins (DHP) in cultures of Phanerochaete chrysosporium . In the presence of high levels of manganese (Mn(II) or Mn(III)), along with a suitable chelator, lignin peroxidase (LiP) production was repressed and manganese peroxidase (MnP) production was stimulated. Even though partial lignin depolymerization was observed under these conditions, further depolymerization of the polymer to smaller compounds was more efficient when low levels of manganese were present. LiPs were prevalent under these latter conditions, but MnPs were also present. Mineralization was more efficient with low manganese. JF - Applied and Environmental Microbiology AU - Perez, J AU - Jeffries, T W AD - Inst. Microb. and Biochem. Technol., For. Prod. Lab., For. Serv., USDA, One Gifford Pinchot Dr., Madison, WI 53705-2398, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 2402 EP - 2409 VL - 58 IS - 8 SN - 0099-2240, 0099-2240 KW - lignin KW - lignin peroxidase KW - manganese peroxidase KW - manganese KW - organic acids KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - chelating agents KW - depolymerization KW - Phanerochaete chrysosporium KW - biodegradation KW - regulation KW - biosynthesis KW - A 01006:Enzymes & cofactors KW - K 03020:Fungi KW - A 01016:Microbial degradation KW - K 03098:Spoilage & biodegradation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16267519?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Roles+of+manganese+and+organic+acid+chelators+in+regulating+lignin+degradation+and+biosynthesis+of+peroxidases+by+Phanerochaete+chrysosporium+.&rft.au=Perez%2C+J%3BJeffries%2C+T+W&rft.aulast=Perez&rft.aufirst=J&rft.date=1992-01-01&rft.volume=58&rft.issue=8&rft.spage=2402&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Phanerochaete chrysosporium; biodegradation; depolymerization; biosynthesis; regulation; chelating agents ER - TY - JOUR T1 - Tropical forest biomass estimation from truncated stand tables. AN - 16262579; 2796884 AB - Total aboveground forest biomass may be estimated through a variety of techniques based on commercial inventory stand and stock tables. Stand and stock tables from tropical countries commonly omit trees below a certain commercial limit, often greater than or equal to 35 cm. Biomass estimates made from such tables will fail to include from 25-45% of the total stand biomass. Using stand tables generated for large forested areas, we describe several methods of estimating the numbers of stems in one or two missing small-diameter classes (truncated stand tables) based on the numbers of stems in the larger size classes. We show that an exponential model reasonably approximates diameter distributions among most diameter classes in various types of tropical moist forest. The most accurate method of estimating the number of stems smaller (missing) diameter classes used the ratio of the numbers of stems in the two smallest diameter classes. The error of estimation of total stand biomass using this approach (10-12%) was always less than the error incurred by omitting the missing classes (25-45%). JF - Forest Ecology and Management AU - Gillespie, AJR AU - Brown, S AU - Lugo, A E AD - Inst. Trop. For., USDA Forest Serv., South. Forest Exp. Stn., Call Box 25000, Rio Piedras, Puerto Rico 00928-2500 Y1 - 1992 PY - 1992 DA - 1992 SP - 69 EP - 87 VL - 48 IS - 1-2 SN - 0378-1127, 0378-1127 KW - Ecology Abstracts KW - tropical environment KW - errors KW - biomass KW - forest practices KW - stand structure KW - methodology KW - D 04126:Tropical forests KW - D 04001:Methodology - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16262579?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft.genre=dissertations+%26+theses&rft.jtitle=&rft.atitle=&rft.au=Nicole+Bourque%2C+L.&rft.aulast=Nicole+Bourque&rft.aufirst=L.&rft.date=1993-01-01&rft.volume=267&rft.issue=17&rft.spage=12068&rft.isbn=&rft.btitle=&rft.title=Journal+of+Biological+Chemistry&rft.issn=00219258&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - forest practices; biomass; tropical environment; stand structure; errors; methodology ER - TY - JOUR T1 - A soybean vacuolar protein (P34) related to thiol proteases is synthesized as a glycoprotein precursor during seed maturation. AN - 16260548; 2785289 AB - We have examined the synthesis, posttranslational processing, and localization of soybean P34, a member of the papain superfamily. P34 has been identified as a constituent of oil storage organelles or oil bodies isolated from seed lysates and has been assumed to be one of the oil body proteins. Analysis of RNA indicates that the P34 genes are expressed only during seed maturation and that the P34 mRNA is related to other thiol protease mRNAs detectable in other organs and plants. JF - Journal of Biological Chemistry AU - Kalinski, A AU - Melroy, D L AU - Dwivedi, R S AU - Herman, E M AD - Plant Mol. Biol. Lab., USDA, Agric. Res. Serv., Beltsville, MD 20705, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 12068 EP - 12076 VL - 267 IS - 17 SN - 0021-9258, 0021-9258 KW - Glycine max KW - P34 gene KW - P34 protein KW - characterization KW - genes KW - thiol proteinase KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16260548?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Biological+Chemistry&rft.atitle=A+soybean+vacuolar+protein+%28P34%29+related+to+thiol+proteases+is+synthesized+as+a+glycoprotein+precursor+during+seed+maturation.&rft.au=Kalinski%2C+A%3BMelroy%2C+D+L%3BDwivedi%2C+R+S%3BHerman%2C+E+M&rft.aulast=Kalinski&rft.aufirst=A&rft.date=1992-01-01&rft.volume=267&rft.issue=17&rft.spage=12068&rft.isbn=&rft.btitle=&rft.title=Journal+of+Biological+Chemistry&rft.issn=00219258&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - The effect of pH on the heat production and membrane resistance of Streptococcus bovis . AN - 16257200; 2792470 AB - Non-growing cultures of Streptococcus bovis JB1 which were incubated in 2-(N-moropholino) ethane-sulfonic acid (MES)-phosphate buffer (pH 6.8) and glucose (2 g/l) produced heat at a rate of 0.17 mW/mg protein, and this rate was proportional to the enthalpy change of the homolactic fermentation. When the pH was decreased from 6.8 to 5.8, heat production and glucose consumption increased, the electrical potential ( Delta psi ) declined, the chemical gradient of protons (Z Delta pII) increased, and there was a small increase in total protonmotive force ( Delta p). Further decreases in pH (5.8 to 4.5) caused a marked decrease in heat production and glucose consumption even though there was only a small decline in membrane voltage. JF - Archives of Microbiology AU - Russell, J B AD - Agric. Res. Serv., USDA and Sect. Microbiol., Cornell Univ., Ithaca, NY 14853, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 54 EP - 58 VL - 158 IS - 1 SN - 0302-8933, 0302-8933 KW - effects on KW - Microbiology Abstracts B: Bacteriology KW - Streptococcus bovis KW - membrane potential KW - fermentation KW - protonmotive force KW - production KW - heat KW - cell membranes KW - pH KW - J 02721:Cell cycle, morphology and motility UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16257200?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Archives+of+Microbiology&rft.atitle=The+effect+of+pH+on+the+heat+production+and+membrane+resistance+of+Streptococcus+bovis+.&rft.au=Russell%2C+J+B&rft.aulast=Russell&rft.aufirst=J&rft.date=1992-01-01&rft.volume=158&rft.issue=1&rft.spage=54&rft.isbn=&rft.btitle=&rft.title=Archives+of+Microbiology&rft.issn=03028933&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Streptococcus bovis; fermentation; pH; membrane potential; protonmotive force; heat; production; cell membranes ER - TY - JOUR T1 - Effect of feeding selected short-chain fatty acids on the in vivo attachment of Salmonella typhimurium in chick ceca. AN - 16256193; 2788369 AB - Two groups of 20 chicks each were fed 1% fatty acid continuously starting at 1 day of age, while a control group of 20 chicks received unsupplemented feed. At 2 days of age, chicks were inoculated orally with 1 ml of Salmonella typhimurium (1 x 10 super(6) colony-forming units/ml). Ceca were obtained from six chicks of each group at 7, 14, and 21 days of age. At 14 days of age, formic and propionic acids had statistically reduced Salmonella) recovery by 2.56 logs and 3.09 logs, respectively, compared with controls. At 21 days of age, both test groups showed significant reductions of approximately 3.6 logs compared with controls. There were no statistical differences in body weights among the groups at 21 days of age. JF - Avian Diseases AU - McHan, F AU - Shotts, E B AD - USDA, Agric. Res. Serv., Russell Res. Center, Athens, GA 30613, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 139 EP - 142 VL - 36 IS - 1 SN - 0005-2086, 0005-2086 KW - chickens KW - Microbiology Abstracts B: Bacteriology KW - adherence KW - fatty acids KW - cecum KW - feeding KW - Salmonella typhimurium KW - J 02862:Infection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16256193?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+Diseases&rft.atitle=Effect+of+feeding+selected+short-chain+fatty+acids+on+the+in+vivo+attachment+of+Salmonella+typhimurium+in+chick+ceca.&rft.au=McHan%2C+F%3BShotts%2C+E+B&rft.aulast=McHan&rft.aufirst=F&rft.date=1992-01-01&rft.volume=36&rft.issue=1&rft.spage=139&rft.isbn=&rft.btitle=&rft.title=Avian+Diseases&rft.issn=00052086&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Salmonella typhimurium; feeding; adherence; cecum; fatty acids ER - TY - JOUR T1 - The use of immobilized concanavalin A for separation of alternansucrase from dextransucrase in culture broth of Leuconostoc mesenteroides NRRL B-1355. AN - 16252010; 2782289 AB - Immobilized concanavalin A has been used to bind a polysaccharide-glucosyltransferase complex from Leuconostoc mesenteroides NRRL B-1355, which is capable of synthesizing the unusual D-glucan alternan from sucrose. The dextransucrase present in culture fluid passes through a column of immobilized concanavalin A without binding, while the portion of alternansucrase that does bind is eluted using 1-O-methyl alpha -D-mannopyranoside. JF - Biotechnology Techniques AU - Cote, G L AD - USDA, Agric. Res. Serv., Natl. Cent. Agric. Util. Res., 1815 N. University St., Peoria, IL 61604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 45 EP - 48 VL - 6 IS - 1 SN - 0951-208X, 0951-208X KW - Leuconostoc mesenteroides KW - affinity chromatography KW - alternansucrase KW - binding KW - concanavalin A KW - dextransucrase KW - immobilization KW - separation KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - W 30401:Enzymes and cofactors KW - A 01006:Enzymes & cofactors KW - J 02728:Enzymes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16252010?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biotechnology+Techniques&rft.atitle=The+use+of+immobilized+concanavalin+A+for+separation+of+alternansucrase+from+dextransucrase+in+culture+broth+of+Leuconostoc+mesenteroides+NRRL+B-1355.&rft.au=Cote%2C+G+L&rft.aulast=Cote&rft.aufirst=G&rft.date=1992-01-01&rft.volume=6&rft.issue=1&rft.spage=45&rft.isbn=&rft.btitle=&rft.title=Biotechnology+Techniques&rft.issn=0951208X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - affinity chromatography; separation; binding; immobilization ER - TY - JOUR T1 - High-affinity iron uptake systems present in Erwinia carotovora subsp. carotovora include the hydroxamate siderophore aerobactin. AN - 16251551; 2786848 AB - The phytopathogenic bacterium Erwinia carotovora subsp. carotovora W3C105 produced the hydroxamate siderophore aerobactin under iron-limiting conditions. A survey of 22 diverse strains of E. carotovora revealed that strain W3C105 alone produced aerobactin. The ferric-aerobactin receptor of strain W3C105 was an 80-kDa protein, identified by immunoblots of Sarkosyl-soluble proteins obtained from E. carotovora cells grown in iron-depleted medium and probed with antiserum raised against the 74-kDa ferric-aerobactin receptor encoded by the pColV-K30 plasmid of Escherichia coli . Genes determining aerobactin biosynthesis and uptake were localized to an 11.3-kb EcoRI-HindIII chromosomal fragment of strain W3C105. The aerobactin biosynthesis genes of E. carotovora W3C105 hybridized to those of the pColV-K30 plasmid of E. coli , but the restriction patterns of the aerobactin regions of E. coli and E. carotovora differed. JF - Journal of Bacteriology AU - Ishimaru, CA AU - Loper, JE AD - USDA, Agric. Res. Serv., Hortic. Crops Res. Lab., 3420 N.W. Orchard Ave., Corvallis, OR 97330, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 2993 EP - 3003 VL - 174 IS - 9 SN - 0021-9193, 0021-9193 KW - subsp.carotovora KW - aerobactin KW - Erwinia carotovora carotovora KW - iron KW - Erwinia carotovora KW - biosynthesis KW - genes KW - isolation KW - restriction fragment length polymorphism KW - uptake KW - Biochemistry Abstracts 1: Biological Membranes (till 1993); Microbiology Abstracts B: Bacteriology KW - J 02740:Genetics and evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16251551?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Bacteriology&rft.atitle=High-affinity+iron+uptake+systems+present+in+Erwinia+carotovora+subsp.+carotovora+include+the+hydroxamate+siderophore+aerobactin.&rft.au=Ishimaru%2C+CA%3BLoper%2C+JE&rft.aulast=Ishimaru&rft.aufirst=CA&rft.date=1992-01-01&rft.volume=174&rft.issue=9&rft.spage=2993&rft.isbn=&rft.btitle=&rft.title=Journal+of+Bacteriology&rft.issn=00219193&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Erwinia carotovora; biosynthesis; genes; isolation; restriction fragment length polymorphism; uptake ER - TY - JOUR T1 - Northern spotted owls: Influence of prey base and landscape character. AN - 16248049; 2770766 AB - We studied prey populations and the use and composition of home ranges of 47 Northern Spotted Owls (Strix occidentalis caurina ) over 12 mo in five landscapes in two forest types in southwestern Oregon. Owls in Washington used approximately equals 1700 ha of old forest annually and primarily one prey species; available prey biomass was 61 g/ha. Owls in Oregon Douglas-fir (Pseudotsuga menziesii ) forests used 813 plus or minus 133 ha (X super(-) plus or minus SE) of old forest annual and concentrated on two prey species that had a combined biomass of 244 g/ha. Owls in Oregon mixed-conifer forest used 454 plus or minus 84 ha of old forest annually and three primary prey whose availability averaged 338 g/ha. The amount of old forest used by owls studied for 2 yr was 40% greater in the 2nd yr than that used in the 1st yr. No increase in use of old forest was seen in the 3rd yr in Douglas-fir forest; 50% more old forest was used in 3 yr than in the 1st yr in mixed-conifer forest. The most common prey in Washington and Oregon was the northern flying squirrel (Glaucomys sabrinus ). JF - Ecological Monographs AU - Carey, AB AU - Horton, S P AU - Biswell, B L AD - USDA Forest Serv., Pacific Northwest Res. Stn., Olympia, WA 98502, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 223 EP - 250 VL - 62 IS - 2 SN - 0012-9615, 0012-9615 KW - Ecology Abstracts KW - forests KW - USA, Northwest KW - Strix occidentalis caurina KW - home range KW - prey KW - population dynamics KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16248049?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Monographs&rft.atitle=Northern+spotted+owls%3A+Influence+of+prey+base+and+landscape+character.&rft.au=Carey%2C+AB%3BHorton%2C+S+P%3BBiswell%2C+B+L&rft.aulast=Carey&rft.aufirst=AB&rft.date=1992-01-01&rft.volume=62&rft.issue=2&rft.spage=223&rft.isbn=&rft.btitle=&rft.title=Ecological+Monographs&rft.issn=00129615&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Strix occidentalis caurina; USA, Northwest; population dynamics; prey; home range; forests ER - TY - JOUR T1 - Use of azidobestatin as a photoaffinity label to identify the active site peptide of leucine aminopeptidase. AN - 16246347; 2769346 AB - Beef lens leucine aminopeptidase (blLAP) can be considered prototypical of many enzymes in the family of peptidases. Bestatin, ((2S,3R)-(3-amino-3-hydroxy-4-phenyl-butanoyl)-L-leucine) is a nonhydrolyzable substrate analogue of a peptide, PheLeu, which is rapidly cleaved by blLAP. Bestatin incorporates elements of the putative tetrahedral intermediate, and this results in a >10 super(5)-fold enhancement of binding relative to analogous peptides. Bestatin is the most tightly bound inhibitor of many aminopeptidases. Bestatin was successively converted to nitrobestatin, p-aminobestatin, ( super(3)H)-p-aminobestatin, and finally ( super(3)H)-p-azidobestatin (pAB). Like bestatin, pAB is a slow binding inhibitor of LAP (K sub(i) super(*), the dissociation constant for the final complex, = similar to 4 x 10 super(-9); K sub(i), the dissociation constant for the initial collision complex, = similar to 10 super(-8)). The t sub(1/2) for binding of 2 X 10 super(-8) M and 8 X 10 super(-8) M bestatin are similar to 60 min and similar to 38 min, respectively. JF - Biochemistry (Washington) AU - Taylor, A AU - Peltier, C Z AU - Jahngen, EGE Jr AU - Laxman, E AU - Szewczuk, Z AU - Torre, F J AD - Lab. Nutr. and Vision Res., USDA Hum. Nutr. Res. Cent. Aging Tufts Univ., 711 Washington St., Boston, MA 02111, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 4141 EP - 4150 VL - 31 IS - 16 SN - 0006-2960, 0006-2960 KW - active sites KW - bestatin KW - binding KW - cattle KW - eye lens KW - identification KW - kinetics KW - leucine aminopeptidase KW - photoaffinity labelling KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16246347?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemistry+%28Washington%29&rft.atitle=Use+of+azidobestatin+as+a+photoaffinity+label+to+identify+the+active+site+peptide+of+leucine+aminopeptidase.&rft.au=Taylor%2C+A%3BPeltier%2C+C+Z%3BJahngen%2C+EGE+Jr%3BLaxman%2C+E%3BSzewczuk%2C+Z%3BTorre%2C+F+J&rft.aulast=Taylor&rft.aufirst=A&rft.date=1992-01-01&rft.volume=31&rft.issue=16&rft.spage=4141&rft.isbn=&rft.btitle=&rft.title=Biochemistry+%28Washington%29&rft.issn=00062960&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Novel paired starter culture system for sauerkraut, consisting of a nisin-resistant Leuconostoc mesenteroides strain and a nisin-producing Lactococcus lactis strain. AN - 16246114; 2761162 AB - Nisin-resistant Leuconostoc mesenteroides NCK293 and nisin-producing Lactococcus lactis subsp. lactis NCK401 were evaluated separately and in combination for growth and nisin production in a model sauerkraut fermentation. Strains were genetically marked and selectively enumerated by using antibiotic-containing media. The growth and survival of L. mesenteroides were similar in the presence and absence of Lactococcus lactis subsp. lactis . The growth of Lactococcus lactis subsp. lactis was not inhibited, although the maximum cell density was reduced and the population decline was more pronounced in the presence of L. mesenteroides . Nisin was detected within 24 h, and levels were relatively constant over the 12-day test period. The maximum cell populations and nisin levels achieved could be altered by changing the initial cell ratios of L. mesenteroides and Lactococcus lactis subsp. lactis . JF - Applied and Environmental Microbiology AU - Harris, L J AU - Fleming, H P AU - Klaenhammer, T R AD - Food Ferment. Lab., Agric. Res. Serv., USDA, and North Carolina Agric. Res. Serv., Raleigh, NC 27695-7624, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1484 EP - 1489 VL - 58 IS - 5 SN - 0099-2240, 0099-2240 KW - nisin KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Lactococcus lactis KW - starter cultures KW - sauerkraut KW - antibiotic resistance KW - fermentation KW - Leuconostoc mesenteroides KW - biosynthesis KW - mixed culture KW - A 01017:Human foods KW - A 01095:Others KW - W2 32370:Antibiotics and antitumor agents KW - W 30965:Miscellaneous, Reviews KW - W2 32380:Food (including SCP) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16246114?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft.genre=dissertations+%26+theses&rft.jtitle=&rft.atitle=&rft.au=Marcy%2C+William+L.%2C+IV&rft.aulast=Marcy&rft.aufirst=William&rft.date=2007-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=9780549178668&rft.btitle=&rft.title=The+metamorphosis+of+the+drug+war+and+the+Cold+War+in+the+northern+Andes+and+Central+America+%281970%E2%80%932000%29&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - starter cultures; sauerkraut; antibiotic resistance; fermentation; biosynthesis; mixed culture; Lactococcus lactis; Leuconostoc mesenteroides ER - TY - JOUR T1 - Nutritional factors regulating growth and accumulation of phenazine 1-carboxylic acid by Pseudomonas fluorescens 2-79. AN - 16245140; 2777651 AB - Pseudomonas fluorescens strain 2-79 (NRRL B-15 132) is a biocontrol agent of take-all of wheat caused by the fungus Gaeumannomyces graminis var. tritici . Strain 2-79 produces the antibiotic phenazine 1-carboxylic acid, which acts as the primary mechanism of disease suppression. As a first step toward designing efficient methods of mass producing and formulating this biocontrol agent, the regulation of growth and antibiotic production by growth factors (including purines, pyrimidines, vitamins) and minerals (supplying B super(3+), Ca super(2+), Co super(2+), Cu super(2+), Fe super(2+), Mg super(2+), Mn super(2+), Mo super(6+), Zn super(2+)) was examined in defined liquid culture. Additions of boric acid and sulfates of iron and magnesium enhanced both cell and associated antibiotic accumulation. JF - Applied Microbiology and Biotechnology AU - Slininger, P J AU - Jackson, MA AD - Ferment. Biochem. Res., Natl. Cent. Agric. Util. Res., USDA, Agric. Res. Serv., 1815 N. University St., Peoria, IL 61604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 388 EP - 392 VL - 37 IS - 3 SN - 0175-7598, 0175-7598 KW - antibiotics KW - phenazine 1-carboxylic acid KW - Pseudomonas fluorescens KW - biological control KW - biosynthesis KW - nutrient requirements KW - take-all KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - A 01031:Antifungal & fungicidal agents KW - W 30513:Pest control KW - A 01095:Others KW - J 02781:Biosynthesis and physicochemical properties KW - W 30410:Antibiotics and antitumor agents UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16245140?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Microbiology+and+Biotechnology&rft.atitle=Nutritional+factors+regulating+growth+and+accumulation+of+phenazine+1-carboxylic+acid+by+Pseudomonas+fluorescens+2-79.&rft.au=Slininger%2C+P+J%3BJackson%2C+MA&rft.aulast=Slininger&rft.aufirst=P&rft.date=1992-01-01&rft.volume=37&rft.issue=3&rft.spage=388&rft.isbn=&rft.btitle=&rft.title=Applied+Microbiology+and+Biotechnology&rft.issn=01757598&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pseudomonas fluorescens; biosynthesis; nutrient requirements; biological control; take-all ER - TY - JOUR T1 - Growing season trends in the Alaskan climate record. AN - 16244850; 2770908 AB - Linkages between presumed global climate change and agricultural production will enable the development of management strategies to meet the needs of a diverse and future world agricultural enterprise. This study evaluated characteristics trends in the growing length and dates of the last spring and first fall freezes at eight climate stations in Alaska between 1924 and 1989. Two minimum temperature criteria of 0 degree and -3 degree C were used in assessing freeze dates. Half of the stations had no change in growing season length over the last 65 years, whereas the other four stations has a lengthening of the season. Tendencies for longer seasons were in part a result of earlier spring freezes. The growing season shortened at three stations during the period 1940-70, which corresponded with declining Northern Hemisphere temperatures. The presence of changes in the growing season over the last 65 years was apparent in Alaska temperature records. JF - Arctic AU - Sharratt, B S AD - USDA Agric. Res. Serv., 309 O'Neill Build., Univ. Alaska, Fairbanks, AK 99775, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 124 EP - 127 VL - 45 IS - 2 SN - 0004-0843, 0004-0843 KW - growing season KW - Ecology Abstracts KW - historical account KW - USA, Alaska KW - agricultural practices KW - climatic changes KW - D 04100:Terrestrial ecosystems - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16244850?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Arctic&rft.atitle=Growing+season+trends+in+the+Alaskan+climate+record.&rft.au=Sharratt%2C+B+S&rft.aulast=Sharratt&rft.aufirst=B&rft.date=1992-01-01&rft.volume=45&rft.issue=2&rft.spage=124&rft.isbn=&rft.btitle=&rft.title=Arctic&rft.issn=00040843&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - USA, Alaska; climatic changes; agricultural practices; historical account ER - TY - JOUR T1 - Frequency and distribution of polygyne fire ants (Hymenoptera: Formicidae) in Florida. AN - 16243104; 2781682 AB - In order to determine the frequency and distribution of polygyne and monogyne fire ants (Solenopsis invicta ) in Florida, preselected sites were surveyed from Key West to Tallahassee. Polygyne colonies were found at 15% of infested sites--a frequency similar to other states in the southeastern United States, but much less than in Texas. Polygyny was most common in the region around Marion county, but smaller populations were also scattered across the state. The density of mounds at polygyne sites was more than twice that at monogyne sites (262 versus 115 mounds/ha), although mound diameters were about 20% smaller. Polygyne and monogyne queens averaged the same size (1.42 mm, head width), but monogyne queens were much heavier (24.3 mg versus 14.4 mg) due to their physogastry. As expected, workers in polygyne colonies were considerably smaller than those in monogyne colonies (0.28 mg versus 0.19 mg, dry fat-free). JF - Florida Entomologist AU - Porter, S D AD - Med. Vet. Entomol. Res. Lab., Agric. Res. Serv., USDA, P.O. Box 14565, Gainesville, FL 32604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 248 EP - 257 VL - 75 IS - 2 SN - 0015-4040, 0015-4040 KW - Ecology Abstracts; Entomology Abstracts KW - USA, Florida KW - Formicidae KW - frequency KW - geographical variations KW - Solenopsis invicta KW - Hymenoptera KW - polygyny KW - Z 05208:Social entomology KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16243104?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Florida+Entomologist&rft.atitle=Frequency+and+distribution+of+polygyne+fire+ants+%28Hymenoptera%3A+Formicidae%29+in+Florida.&rft.au=Porter%2C+S+D&rft.aulast=Porter&rft.aufirst=S&rft.date=1992-01-01&rft.volume=75&rft.issue=2&rft.spage=248&rft.isbn=&rft.btitle=&rft.title=Florida+Entomologist&rft.issn=00154040&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Formicidae; Hymenoptera; Solenopsis invicta; USA, Florida; geographical variations; frequency; polygyny ER - TY - CONF T1 - The role of plantation forests in rehabilitating degraded tropical ecosystems. AN - 16241130; 2770728 AB - Plantations of multi-purpose tree species can play an important role in restoring productivity, ecosystem stability, and biological diversity to degraded tropical lands. The present study, conducted at a degraded coastal pasture site in Puerto Rico, compares 4.5-year-old Albizia lebbek (L.) Benth. plantation stands and adjacent control areas with respect to biomass production, understorey species diversity and nutrient storage patterns within vegetation, forest floor organic matter, and mineral soil compartments. Standing crop biomass of understorey vegetation, forest floor organic matter and fine (less than 2 mm) roots averaged 160 g m super(-2), 349 g m super(-2), and 362 g m super(-2) in the plantation plots and 420 g m super(-2), 311 g m super(-2), and 105 g m super(-2) in the control plots. Species richness was considerably greater in plantation than control plots for grasses, vines, and forbs. Seedlings of several secondary forest species were abundant in the plantation understorey but absent in control plots, suggesting an important role for such plantations in accelerating natural regeneration of native forest species on certain sites. JF - Agriculture, Ecosystems & Environment AU - Parrotta, JA Y1 - 1992 PY - 1992 DA - 1992 SP - 115 EP - 133 VL - 41 IS - 2 KW - Puerto Rico KW - Ecology Abstracts KW - tropical environment KW - forests KW - plantations KW - environmental restoration KW - environmental degradation KW - D 04715:Reclamation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16241130?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Agriculture%2C+Ecosystems+%26+Environment&rft.atitle=The+role+of+plantation+forests+in+rehabilitating+degraded+tropical+ecosystems.&rft.au=Parrotta%2C+JA&rft.aulast=Parrotta&rft.aufirst=JA&rft.date=1992-01-01&rft.volume=41&rft.issue=2&rft.spage=115&rft.isbn=&rft.btitle=&rft.title=Agriculture%2C+Ecosystems+%26+Environment&rft.issn=01678809&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Oak overstory/reproduction relations in two xeric ecosystems in Michigan. AN - 16241093; 2767707 AB - Average reproduction density of oaks in the northern pin oak-black oak/Deschampsia (PBD) ecosystem was approximately half that of the slightly less xeric black oak-white oak/Vaccinium (BWV) ecosystem. However, when variation in total overstory basal area and the basal area of large oaks (i.e. white oaks, of 30 cm diameter at breast height (dbh) or more and black oaks of 36 cm dbh or more) was accounted for, reproduction density of white oak and the black oak species-group (black, northern red, and northern pin oaks) did not differ significantly (P > 0.05) between ecosystems. High white oak reproduction density was associated with low stand basal area and high basal area of white oaks of 30 cm dbh or more. In contrast, high black oak reproduction density was associated with high overstory basal area and high basal area of black oaks of 36 cm dbh or more. In both ecosystems, the height of the tallest stem of oak reproduction per 5.5 m super(2) plot increased with decreasing overstory density for both white oak and black oaks. For a given overstory density, the frequency of occurrence of all size classes of oak reproduction was greater in the black oak-white oak/Vaccinium) ecosystem than in the pin oak-black oak/Deschampsia ecosystem. JF - Forest Ecology and Management AU - Johnson, P S AD - North Cent. Forest Exp. Stn., USDA Forest Serv., 1-26 Agric. Build., Univ. Missouri, Columbia, MO 65211, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 233 EP - 248 VL - 48 IS - 3-4 SN - 0378-1127, 0378-1127 KW - Ecology Abstracts KW - forests KW - USA, Michigan KW - plant communities KW - Quercus KW - reproduction KW - canopies KW - D 04640:Other angiosperms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16241093?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Oak+overstory%2Freproduction+relations+in+two+xeric+ecosystems+in+Michigan.&rft.au=Johnson%2C+P+S&rft.aulast=Johnson&rft.aufirst=P&rft.date=1992-01-01&rft.volume=48&rft.issue=3-4&rft.spage=233&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Quercus; USA, Michigan; forests; canopies; reproduction; plant communities ER - TY - JOUR T1 - Effect of inoculant strain and organic matter content on kinetics of 2,4-dichlorophenoxyacetic acid degradation in soil. AN - 16237891; 2774752 AB - We monitored rates of degradation of soluble and sorbed 2,4-dichlorophenoxyacetic acid (2,4-D) in low-organic-matter soil at field capacity amended with 1, 10, or 100 mu g of 2,4-D per g of wet soil and inoculated with one of two bacterial strains (MI and 155) with similar maximum growth rates ( mu sub(max)) but significantly different half-saturation growth constants (K sub(s)). Concentrations of soluble 2,4-D were determined by analyzing samples of pore water pressed from soil, and concentrations of sorbed 2,4-D were determined by solvent extraction. Between 65 and 75% of the total 2,4-D was present in the soluble phase at equilibrium, resulting in soil solution concentrations of ca. 8, 60, and 600 mu g of 2,4-D per ml, respectively. Soluble 2,4-D was metabolized preferentially; this was followed by degradation of both sorbed (after desorption) and soluble 2,4-D. JF - Applied and Environmental Microbiology AU - Greer, LE AU - Shelton AD - Pestic. Degradation Lab., Agric. Res. Serv., USDA, 10300 Baltimore Ave., Beltsville, MD 20705, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1459 EP - 1465 VL - 58 IS - 5 SN - 0099-2240, 0099-2240 KW - 2,4-D KW - inoculation KW - soil types KW - soils KW - Biotechnology and Bioengineering Abstracts; Pollution Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - biodegradation KW - organic matter KW - adsorption KW - bacteria KW - soil KW - A 01054:Effect of herbicides KW - P 5000:LAND POLLUTION KW - J 02901:Soil and plants KW - W2 32510:Waste treatment, environment, pollution KW - W 30965:Miscellaneous, Reviews KW - J 02722:Biodegradation, growth, nutrition and leaching UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16237891?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Effect+of+inoculant+strain+and+organic+matter+content+on+kinetics+of+2%2C4-dichlorophenoxyacetic+acid+degradation+in+soil.&rft.au=Greer%2C+LE%3BShelton&rft.aulast=Greer&rft.aufirst=LE&rft.date=1992-01-01&rft.volume=58&rft.issue=5&rft.spage=1459&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - biodegradation; inoculation; soil types; bacteria; adsorption; organic matter; soil ER - TY - JOUR T1 - Availability of nesting sites as a limit to woodpecker populations. AN - 16234593; 2764341 AB - We determined availability of potential cavity sites in a second-growth beech-birch-maple (Fagus-Betula-Acer ) forest in central New York, USA and related these measures to estimates of woodpecker abundance from line-transect surveys. Nine habitat variables, including seven indicators of decay, were used to develop a model to discriminate between cavity trees and non-cavity trees. Presence of broken tops and broken branch stubs > 10 cm diameter were the best predictors of bird use. Using the model to classify trees as potential nest sites, we estimated the density of such trees as 80.7 trees/ha. This supply of potential cavity trees should have been sufficient to support potential maximum woodpecker populations, but our estimates of density for five species of woodpeckers were well below potential maximum woodpecker densities in northern hardwoods. Availability of suitable nest trees apparently was not limiting woodpeckers on the study area, thus efforts to maintain or increase woodpecker populations should not focus solely on providing potential cavity trees because other factors may be limiting. JF - Forest Ecology and Management AU - Welsh, CJE AU - Capen, DE AD - USDA Forest Serv., Northeastern Forest Exp. Stn., Amherst, MA 01003, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 31 EP - 41 VL - 48 IS - 1-2 SN - 0378-1127, 0378-1127 KW - Ecology Abstracts KW - Picidae KW - resource availability KW - nests KW - limiting factors KW - USA, New York KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16234593?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Availability+of+nesting+sites+as+a+limit+to+woodpecker+populations.&rft.au=Welsh%2C+CJE%3BCapen%2C+DE&rft.aulast=Welsh&rft.aufirst=CJE&rft.date=1992-01-01&rft.volume=48&rft.issue=1-2&rft.spage=31&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Picidae; USA, New York; resource availability; nests; limiting factors ER - TY - JOUR T1 - Changes in polyamine and glutathione contents of a green alga, Chlorogonium elongatum (Dang) France exposed to mercury. AN - 16234186; 2758127 AB - Effects of 5.0 and 10.0 mu g/ml mercury as mercuric chloride (HgCl sub(2)) (w/v) were studied on polyamine and glutathione contents of a green alga Chlorogonium elongatum) (Dang) France grown under culture conditions. Homospermidine (H-Spd) and 1,3-diaminopropane (Dap) have also been identified in this alga in addition to putrescine (Put), spermidine (Spd) and spermine (Spm), the typical representatives of the polyamine pool. Exposure to mercury resulted in an increase in the concentrations of Put and Dap, but a decrease in those of Spd, Spm and H-Spd. Mercury treatments increased the concentration of total glutathione, including both oxidized (GSSG) and reduced (GSH) glutathione. The GSH/GSSG ratio was higher in control samples than in mercury-treated samples. The possible role of polyamines and glutathione in detoxifying the heavy metal is discussed. JF - Environmental and Experimental Botany AU - Agrawal, S B AU - Agrawal, M AU - Lee, E H AU - Kramer, G F AU - Pillai, P AD - Climate Stress Lab., USDA/ARS, Beltsville Agric. Res. Cent., 10300 Baltimore Ave., Beltsville, MD 20705-2530, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 145 EP - 151 VL - 32 IS - 2 SN - 0098-8472, 0098-8472 KW - effects on KW - polyamines KW - glutathione KW - mercury KW - heavy metals KW - Pollution Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Chlorogonium elongatum KW - K 03099:Pollution KW - P 6000:TOXICOLOGY AND HEALTH KW - K 03063:Effects of physical & chemical factors UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16234186?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+and+Experimental+Botany&rft.atitle=Changes+in+polyamine+and+glutathione+contents+of+a+green+alga%2C+Chlorogonium+elongatum+%28Dang%29+France+exposed+to+mercury.&rft.au=Agrawal%2C+S+B%3BAgrawal%2C+M%3BLee%2C+E+H%3BKramer%2C+G+F%3BPillai%2C+P&rft.aulast=Agrawal&rft.aufirst=S&rft.date=1992-01-01&rft.volume=32&rft.issue=2&rft.spage=145&rft.isbn=&rft.btitle=&rft.title=Environmental+and+Experimental+Botany&rft.issn=00988472&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Chlorogonium elongatum; mercury; heavy metals ER - TY - JOUR T1 - Relating soil chemistry and plant relationships in wooded draws of the northern Great Plains. AN - 16231803; 2768960 AB - Soils of the green ash/chokecherry habitat type in northwestern South Dakota were evaluated for 22 properties to determine whether any could be correlated with density of chokecherry (Prunus virginiana ) and snowberry Symphoricarpos occidentalis ). Surface soils were moderately fertile, with high levels of all elements except phosphorus and nitrogen. Soils were fine textured, with moderately high cation exchange capacity and saturation percentages. However, soils were nonsaline-nonalkaline with low amounts of exchangeable sodium. None of the soil properties showed good correlation with chokecherry and snowberry densities. Greatest correlations were found between each of the shrub species and grass. JF - Great Basin Naturalist AU - Voorhees, ME AU - Uresk, D W AD - USDA Forest Serv., Rocky Mt. Forest and Range Exp. Stn., South Dakota Sch. Mines and Technol., 501 E. St. Joseph St., Rapid City, SD 57701, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 35 EP - 40 VL - 52 IS - 1 SN - 0017-3614, 0017-3614 KW - Ecology Abstracts KW - relationship KW - USA, South Dakota KW - Symphoricarpos occidentalis KW - soil chemistry KW - plant communities KW - drainage systems KW - Prunus virginiana KW - D 04625:Plants - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16231803?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Great+Basin+Naturalist&rft.atitle=Relating+soil+chemistry+and+plant+relationships+in+wooded+draws+of+the+northern+Great+Plains.&rft.au=Voorhees%2C+ME%3BUresk%2C+D+W&rft.aulast=Voorhees&rft.aufirst=ME&rft.date=1992-01-01&rft.volume=52&rft.issue=1&rft.spage=35&rft.isbn=&rft.btitle=&rft.title=Great+Basin+Naturalist&rft.issn=00173614&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Prunus virginiana; Symphoricarpos occidentalis; USA, South Dakota; soil chemistry; relationship; plant communities; drainage systems ER - TY - JOUR T1 - Mixed-conifer seedling growth varies in response to overstory release. AN - 16231534; 2768073 AB - Five-year height growth of Pinus ponderosa, P. lambertiana, Libocedrus decurrens, Pseudotsuga menziesii , and Abies concolor seedlings was observed beneath a 25-year-old Pi. ponderosa plantation on the western slope of the Sierra Nevada, California. The plantation had been thinned to allow 15%, 34% and 58% of full sun (PFS) to reach the seedlings. All species except Pi. lambertiana responded in general accordance with accepted shade-tolerance rankings. Pinus lambertiana , like Pi. ponderosa , seemed intolerant of dense shade (15 and 34 PFS), but growth was similar to that of L. decurrens and Ps. menziesii under the thin canopy (58 PFS), suggesting a unique ability to respond with rapid growth to gaps in the canopy. JF - Forest Ecology and Management AU - Oliver, W W AU - Dolph, K L AD - Pacific Southwest Forest and Range Exp. Stn., USDA Forest Serv., 2400 Washington Ave., Redding, CA 96001, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 179 EP - 183 VL - 48 IS - 1-2 SN - 0378-1127, 0378-1127 KW - USA, California, Sierra Nevada KW - Ecology Abstracts KW - response KW - mixing KW - Pinaceae KW - growth rate KW - release KW - canopies KW - seedlings KW - D 04635:Conifers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16231534?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Mixed-conifer+seedling+growth+varies+in+response+to+overstory+release.&rft.au=Oliver%2C+W+W%3BDolph%2C+K+L&rft.aulast=Oliver&rft.aufirst=W&rft.date=1992-01-01&rft.volume=48&rft.issue=1-2&rft.spage=179&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinaceae; seedlings; growth rate; mixing; response; canopies; release ER - TY - JOUR T1 - Phylogeny, historical biogeography, and ecology of Anophryocephalus spp. (Eucestoda: Tetrabothriidae) among pinnipeds of the Holarctic during the late Tertiary and Pleistocene. AN - 16231487; 2757447 AB - Phylogenetic systematic analyses of Anophryocephalus spp. resulted in a single most-parsimonious cladogram (consistency index: 80%). Cladograms for pinniped hosts (phocids and otariids) and Anophryocephalus spp. were highly incongruent, corroborating a hypothesis for colonization as a dominant determinant of parasite diversification. Phoca (Pusa ) spp. in the Atlantic basin are postulated as the initial hosts; range expansion for hosts and parasites into the Pacific basin through the Arctic (ca. 3.0-2.5 million years ago) was followed by radiation of Anophryocephalus spp. among Phoca spp. and subsequent colonization of otariids (Eumetopias jubatus as typical hosts; ca. 2.0 million years ago). Host phylogeny and historical biogeography in conjunction with host distributions of these cestodes indicate evolution of Anophryocephalus was associated with dispersal and radiation of Phoca spp. in the Holarctic during the Late Pliocene and Pleistocene. Isolation in regional refugia and vicariance (during stadials) and subsequent range expansion and sequential colonization (interstadials) are postulated as the primary determinants of host--parasite diversification in the North Pacific during the late Tertiary and Quaternary. JF - Canadian Journal of Zoology/Revue Canadienne de Zoologie AU - Hoberg, E P AU - Adams, A M AD - USDA, Agric. Res. Serv., Biosyst. Parasitol. Lab., BARC East, Build. 1180, 10300 Baltimore Ave., Beltsville, MD 20715-2350, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 703 EP - 719 VL - 70 IS - 4 SN - 0008-4301, 0008-4301 KW - Anophryocephalus KW - Pleistocene KW - host-parasite interactions KW - Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Holarctic Region KW - Marine KW - parasites KW - phylogeny KW - Pinnipedia KW - biogeography KW - Tertiary KW - hosts KW - Cestoda KW - O 1070:Ecology/Community Studies KW - D 04672:Mammals KW - Q1 08484:Species interactions: parasites and diseases KW - Q1 08187:Palaeontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16231487?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Zoology%2FRevue+Canadienne+de+Zoologie&rft.atitle=Phylogeny%2C+historical+biogeography%2C+and+ecology+of+Anophryocephalus+spp.+%28Eucestoda%3A+Tetrabothriidae%29+among+pinnipeds+of+the+Holarctic+during+the+late+Tertiary+and+Pleistocene.&rft.au=Hoberg%2C+E+P%3BAdams%2C+A+M&rft.aulast=Hoberg&rft.aufirst=E&rft.date=1992-01-01&rft.volume=70&rft.issue=4&rft.spage=703&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Zoology%2FRevue+Canadienne+de+Zoologie&rft.issn=00084301&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Tertiary; parasites; phylogeny; hosts; Pleistocene; biogeography; host-parasite interactions; Pinnipedia; Cestoda; Holarctic Region; Marine ER - TY - JOUR T1 - Test assemblies for monitoring decay in wood exposed above ground. AN - 16229197; 2760607 AB - No method exists for quantitatively evaluating the durability of wood exposed above ground. The aim of this study was to develop a test assembly that would (1) be conducive to rapid decay, (2) exhibit minimal variation between replicates in decay response, and (3) lend itself to nondestructive testing in the field. Eighteen different designs for test units of southern pine sapwood were tested in an open field in southern Mississippi in the United States and in a rainforest in Panama. At both locations, test units were exposed above ground to natural infestations of wood decay fungi. No design seemed particularly advantageous in the tropical climate. In the temperate climate, onset of wood decay and frequency of failed units at given intervals of exposure were influenced by the size of the units. Two designs met experimental objectives. JF - International Biodeterioration & Biodegradation AU - De Groot, RC AD - USDA For. Serv., For. Prod. Lab., 1 Gifford Pinchot Dr., Madison, WI 53705-2398, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 151 EP - 175 VL - 29 IS - 2 SN - 0964-8305, 0964-8305 KW - Pinus elliotti KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - tropical environment KW - temperate environments KW - monitoring KW - wood KW - Pinus taeda KW - equipment KW - Pinus echinata KW - decay fungi KW - decay KW - A 01046:Deterioration & treatment of timber KW - K 03098:Spoilage & biodegradation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16229197?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Biodeterioration+%26+Biodegradation&rft.atitle=Test+assemblies+for+monitoring+decay+in+wood+exposed+above+ground.&rft.au=De+Groot%2C+RC&rft.aulast=De+Groot&rft.aufirst=RC&rft.date=1992-01-01&rft.volume=29&rft.issue=2&rft.spage=151&rft.isbn=&rft.btitle=&rft.title=International+Biodeterioration+%26+Biodegradation&rft.issn=09648305&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinus taeda; Pinus echinata; wood; decay; decay fungi; monitoring; equipment; tropical environment; temperate environments ER - TY - JOUR T1 - Characterization of two nisin-producing Lactococcus lactis subsp. lactis strains isolated from a commercial sauerkraut fermentation. AN - 16228816; 2761107 AB - Two Lactococcus lactis subsp. lactis strains, NCK400 and LJH80, isolated from a commercial sauerkraut fermentation were shown to produce nisin. LJH80 was morphologically unstable and gave rise to two stable, nisin-producing (Nip super(+)) derivatives, NCK318-2 and NCK318-3. NCK400 and derivatives of LJH80 exhibited identical morphological and metabolic characteristics, but could be distinguished on the basis of plasmid profiles and genomic hybridization patterns to a DNA probe specific for the iso-ISS1 element, IS946. NCK318-2 and NCK318-3 harbored two and three plasmids, respectively, which hybridized with IS946. Plasmid DNA was not detected in NCK400, and DNA from this strain failed to hybridize with IS946. Despite the absence of detectable plasmid DNA in NCK400, nisin-negative derivatives (NCK402 and NCK403) were isolated after repeated transfer in broth at 37 degree C. Nisin-negative derivatives concurrently lost the ability to ferment sucrose and became sensitive to nisin. JF - Applied and Environmental Microbiology AU - Harris, L J AU - Fleming, H P AU - Klaenhammer, T R AD - Food Ferment. Lab., Agric. Res. Serv., USDA, and North Carolina Agric. Res. Serv., Raleigh, NC 27695-7624, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1477 EP - 1483 VL - 58 IS - 5 SN - 0099-2240, 0099-2240 KW - nisin KW - spaN gene KW - subsp.lactis KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Lactococcus lactis KW - sauerkraut KW - isolation KW - hybridization analysis KW - genes KW - fermentation KW - biotyping KW - biosynthesis KW - biochemical characteristics KW - A 01017:Human foods KW - A 01095:Others KW - W2 32370:Antibiotics and antitumor agents KW - W 30965:Miscellaneous, Reviews KW - W2 32380:Food (including SCP) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16228816?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Characterization+of+two+nisin-producing+Lactococcus+lactis+subsp.+lactis+strains+isolated+from+a+commercial+sauerkraut+fermentation.&rft.au=Harris%2C+L+J%3BFleming%2C+H+P%3BKlaenhammer%2C+T+R&rft.aulast=Harris&rft.aufirst=L&rft.date=1992-01-01&rft.volume=58&rft.issue=5&rft.spage=1477&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - hybridization analysis; isolation; sauerkraut; genes; biotyping; fermentation; biochemical characteristics; biosynthesis; Lactococcus lactis ER - TY - JOUR T1 - Temporal variation in rangeland grasshopper (Orthoptera: Acrididae) communities in the steppe region of Montana, USA. AN - 16227979; 2760204 AB - A study was conducted to evaluate changes in rangeland grasshopper communities over a 5-year period in the Agropyron spicatum (Pursh) Scribn. and Smith and Bouteloua gracilis (H.B.K.) Lag. provinces of the steppe region on Montana, USA. Results showed that it was possible to categorize years into outbreak, non-outbreak, and transitional based on rangeland grasshopper intensity. Nearly twice as many species were observed in outbreak versus non-outbreak years. Of the 57 total grasshopper species collected over the entire study period, 16 species were found only during outbreak years and only two were found exclusively during non-outbreak years. Of the remaining 39 species collected during outbreak and non-outbreak years, 27 species showed no significant differences in the percentage of the community that they represented and 11 species showed significant increases. Results support the hypothesis that grasshopper communities overall are sensitive to temporal changes in resources, even though responses of individual species differed. JF - Canadian Entomologist AU - Kemp, W P AD - USDA Agric. Res. Serv., Rangeland Insect Lab., Bozeman, MT 59717-036, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 437 EP - 450 VL - 124 IS - 3 SN - 0008-347X, 0008-347X KW - Entomology Abstracts; Ecology Abstracts KW - community composition KW - Acrididae KW - Orthoptera KW - temporal variations KW - rangelands KW - USA, Montana KW - Z 05205:Populations & general ecology KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16227979?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Entomologist&rft.atitle=Temporal+variation+in+rangeland+grasshopper+%28Orthoptera%3A+Acrididae%29+communities+in+the+steppe+region+of+Montana%2C+USA.&rft.au=Kemp%2C+W+P&rft.aulast=Kemp&rft.aufirst=W&rft.date=1992-01-01&rft.volume=124&rft.issue=3&rft.spage=437&rft.isbn=&rft.btitle=&rft.title=Canadian+Entomologist&rft.issn=0008347X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Acrididae; Orthoptera; USA, Montana; temporal variations; rangelands; community composition ER - TY - JOUR T1 - Oxidative degradation of phenanthrene by the ligninolytic fungus Phanerochaete chrysosporium . AN - 16221145; 2760329 AB - The ligninolytic fungus Phanerochaete chrysosporium oxidized phenanthrene and phenanthrene-9,10-quinone (PQ) at their C-9 and C-10 positions to give a ring-fission product, 2,2'-diphenic acid (DPA), which was identified in chromatographic and isotope dilution experiments. DPA formation from phenanthrene was somewhat greater in low-nitrogen (ligninolytic) cultures than in high-nitrogen (nonligninolytic) cultures and did not occur in uninoculated cultures. The oxidation of PQ to DPA involved both fungal and abiotic mechanisms, was unaffected by the level of nitrogen added, and was significantly faster than the cleavage of phenanthrene to DPA. Phenanthrene-trans-9,10-dihydrodiol, which was previously shown to be the principal phenanthrene metabolite in nonligninolytic P. chrysosporium cultures, was not formed in the ligninolytic cultures employed here. JF - Applied and Environmental Microbiology AU - Hammel, KE AU - Gai, Wen Zhi AU - Green, B AU - Moen, MA AD - Inst. Microb. and Biochem. Technol., For. Prod. Lab., USDA, Madison, WI 35705, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1832 EP - 1838 VL - 58 IS - 6 SN - 0099-2240, 0099-2240 KW - phenanthrene KW - phenanthrenequinone KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Phanerochaete chrysosporium KW - metabolites KW - biodegradation KW - metabolic pathways KW - intermediates KW - oxidation KW - A 01016:Microbial degradation KW - W2 32510:Waste treatment, environment, pollution KW - K 03098:Spoilage & biodegradation KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16221145?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Oxidative+degradation+of+phenanthrene+by+the+ligninolytic+fungus+Phanerochaete+chrysosporium+.&rft.au=Hammel%2C+KE%3BGai%2C+Wen+Zhi%3BGreen%2C+B%3BMoen%2C+MA&rft.aulast=Hammel&rft.aufirst=KE&rft.date=1992-01-01&rft.volume=58&rft.issue=6&rft.spage=1832&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - metabolites; biodegradation; metabolic pathways; intermediates; oxidation; Phanerochaete chrysosporium ER - TY - JOUR T1 - Evaluation of the nematode Steinernema carpocapsae to control fire ants in nursery stock. AN - 16217225; 2750422 JF - Florida Entomologist AU - Jouvenaz, D P AU - Martin, W R AD - USDA, ARS, Med. & Vet. Entomol. Res. Lab., 1600 S.W. 23rd Dr., Gainesville, FL 32608, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 148 EP - 151 VL - 75 IS - 1 SN - 0015-4040, 0015-4040 KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Entomology Abstracts KW - Solenopsis invicta KW - Steinernema carpocapsae KW - biological control KW - pest control KW - Formicidae KW - horticulture KW - Hymenoptera KW - Nematoda KW - Z 05207:Agricultural & general applied entomology KW - W2 32445:Pest control KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16217225?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Florida+Entomologist&rft.atitle=Evaluation+of+the+nematode+Steinernema+carpocapsae+to+control+fire+ants+in+nursery+stock.&rft.au=Jouvenaz%2C+D+P%3BMartin%2C+W+R&rft.aulast=Jouvenaz&rft.aufirst=D&rft.date=1992-01-01&rft.volume=75&rft.issue=1&rft.spage=148&rft.isbn=&rft.btitle=&rft.title=Florida+Entomologist&rft.issn=00154040&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - biological control; pest control; horticulture; Solenopsis invicta; Steinernema carpocapsae; Formicidae; Hymenoptera; Nematoda ER - TY - JOUR T1 - FORAGE: A model of forage intake in beef cattle. AN - 16214633; 2758018 AB - A deterministic simulation model (FORAGE) has been developed as an interface between the plant and animal components of a general rangeland ecosystem model (SPUR). The model predicts forage intake and diet selection of grazing beef cattle by simulating the mechanistic components of grazing behavior. Bite size, rate of biting, rate of intake and grazing time are modified by changes in sward characteristics. Sensitivity analyses revealed that the model is sensitive to underestimation of critical parameters. The model suggests that, when forage availability is limited, intake is limited by rate of intake and grazing time. JF - Ecological Modelling AU - Baker, B B AU - Bourdon, R M AU - Hanson, J D AD - USDA-ARS, Great Plains Syst. Res., 301 S. Howes, P.O. Box E, Fort Collins, CO 80522, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 257 EP - 279 VL - 60 IS - 3-4 SN - 0304-3800, 0304-3800 KW - FORAGE KW - diets KW - food availability KW - foraging behavior KW - grazing KW - livestock KW - mathematical models KW - Ecology Abstracts; Animal Behavior Abstracts KW - Y 25497:Mammals (excluding primates) KW - Y 25847:Mammals (excluding primates) KW - D 04672:Mammals KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16214633?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Modelling&rft.atitle=FORAGE%3A+A+model+of+forage+intake+in+beef+cattle.&rft.au=Baker%2C+B+B%3BBourdon%2C+R+M%3BHanson%2C+J+D&rft.aulast=Baker&rft.aufirst=B&rft.date=1992-01-01&rft.volume=60&rft.issue=3-4&rft.spage=257&rft.isbn=&rft.btitle=&rft.title=Ecological+Modelling&rft.issn=03043800&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - foraging behavior; diets; grazing; food availability; livestock; mathematical models; FORAGE ER - TY - JOUR T1 - The relative success of Africanized and European honey-bees over a range of life-zones in Costa Rica. AN - 16213209; 2741223 AB - The reproductive success and biology of Africanized and European honey-bees (Apis mellifera ) were compared for a year over three life-zones from 900 m to 2800 m in Costa Rica, with the aim of identifying the factors which might limit the distribution of both bee types in tropical highlands. There was a significant difference in survivorship during the rainy season between European colonies given supplemental feedings and those not so fed; however, there were no significant differences in survivorship between the fed and unfed Africanized colonies. More European than Africanized colonies died from gradual weakening, and only Africanized colonies absconded. However, colony deaths and absconding occurred with approximately equal frequency over all elevations during the year. Almost three times as many Africanized as European colonies swarmed over the year. Although the majority of swarms occurred in the dry season at the lowest apiary, both bee types issued swarms at the highest elevation. JF - Journal of Applied Ecology AU - Spivak, M AD - Cent. Insect Sci., Univ. Arizona, c/o USDA Carl Hayden Bee Res. Cent., 2000 E. Allen Rd., Tucson, AZ 85719, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 150 EP - 162 VL - 29 IS - 1 SN - 0021-8901, 0021-8901 KW - Africanized vs. European KW - Ecology Abstracts; Entomology Abstracts KW - Costa Rica KW - Apis mellifera KW - ecological distribution KW - survival KW - Hymenoptera KW - breeding success KW - Apidae KW - Z 05205:Populations & general ecology KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16213209?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Applied+Ecology&rft.atitle=The+relative+success+of+Africanized+and+European+honey-bees+over+a+range+of+life-zones+in+Costa+Rica.&rft.au=Spivak%2C+M&rft.aulast=Spivak&rft.aufirst=M&rft.date=1992-01-01&rft.volume=29&rft.issue=1&rft.spage=150&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Ecology&rft.issn=00218901&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Apis mellifera; Apidae; Hymenoptera; Costa Rica; survival; breeding success; ecological distribution ER - TY - JOUR T1 - Identification and distribution of cross-pollinating honey-bees on almonds. AN - 16212818; 2741187 AB - Pollen on stigmas and the bodies of honey-bees foraging on almond blossoms was identified in 1988 and 1989. The percentage of blossoms setting nuts also was measured with respect to a tree limb's adjacent pollen source. Every honey-bee that we collected foraging on almond blossoms had self-pollen on its body and 90% or more had cross-pollen. In 1988, 60-92% of the foragers had non-almond pollen on their bodies, while in 1989 the percentages were 92-100%. In 1988 there was significantly more self- and cross-pollen on foragers' bodies than non-almond pollen with the exception of "Peerless" nectar collectors. However, in 1989 the percentages of cross- and non-almond pollen were equivalent except for "Price", and were significantly less than the percentages of self-pollen. In 1988, 42 multiplied by 1 - 81 multiplied by 2% of the stigmas we examined had self-pollen, 36 multiplied by 8 - 68 multiplied by 7% had cross-pollen, and 43 multiplied by 7 - 94 multiplied by 0% had non-almond pollen. In 1989, 60 multiplied by 0 - 100 multiplied by 0% of the stigmas had self-pollen, 10-100% had cross-pollen, and 80 multiplied by 0 - 100 multiplied by 0% had non-almond pollen. JF - Journal of Applied Ecology AU - Degrandi-Hoffman, G AU - Thorp, R AU - Loper, G AU - Eisikowitch, D AD - Carl Hayden Bee Res. and Biol. Control Cent., USDA-ARS, 2000 East Allen Rd., Tucson, AZ 85719, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 238 EP - 246 VL - 29 IS - 1 SN - 0021-8901, 0021-8901 KW - Ecology Abstracts; Entomology Abstracts KW - Prunus dulcis KW - foraging behavior KW - Apis mellifera KW - cross-pollination KW - Hymenoptera KW - apiculture KW - Apidae KW - D 04659:Insects KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16212818?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Applied+Ecology&rft.atitle=Identification+and+distribution+of+cross-pollinating+honey-bees+on+almonds.&rft.au=Degrandi-Hoffman%2C+G%3BThorp%2C+R%3BLoper%2C+G%3BEisikowitch%2C+D&rft.aulast=Degrandi-Hoffman&rft.aufirst=G&rft.date=1992-01-01&rft.volume=29&rft.issue=1&rft.spage=238&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Ecology&rft.issn=00218901&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Prunus dulcis; Apis mellifera; Apidae; Hymenoptera; foraging behavior; cross-pollination; apiculture ER - TY - JOUR T1 - Characteristics of a new cellulolytic Clostridium sp. isolated from pig intestinal tract. AN - 16211454; 2734851 AB - Gram-positive, spore-forming, motile, cellulolytic rods were isolated from 10 super(7) dilutions of pig fecal samples. The pigs had previously been fed pure cultures of the ruminal cellulolytic organism Clostridium longisporum). Isolates formed terminal to subterminal spores, and a fermentable carbohydrate was required for growth. Besides cellulose, the isolates utilized cellobiose, glycogen, maltose, and starch. However, glucose, fructose, sucrose, pectin, and xylose were not used as energy sources. Major fermentation products included formate and butyrate. The isolates did not digest proteins from gelatin or milk. Unlike C. longisporum , which has limited ability to degrade cell wall components from grasses (switchgrass, bromegrass, and ryegrass), the swine isolates were equally effective in degrading these components from both alfalfa and grasses. JF - Applied and Environmental Microbiology AU - Varel, V H AU - Pond, W G AD - Roman L. Hruska U.S. Meat Anim. Res. Cent., Agric. Res. Serv., USDA, Clay Center, NE 68933, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1645 EP - 1649 VL - 58 IS - 5 SN - 0099-2240, 0099-2240 KW - cellulose KW - pigs KW - Microbiology Abstracts B: Bacteriology KW - Clostridium KW - degradation KW - cellulolytic bacteria KW - fermentation KW - intestinal microflora KW - biochemical characteristics KW - J 02861:Microflora UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16211454?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Characteristics+of+a+new+cellulolytic+Clostridium+sp.+isolated+from+pig+intestinal+tract.&rft.au=Varel%2C+V+H%3BPond%2C+W+G&rft.aulast=Varel&rft.aufirst=V&rft.date=1992-01-01&rft.volume=58&rft.issue=5&rft.spage=1645&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Clostridium; cellulolytic bacteria; intestinal microflora; biochemical characteristics; degradation; fermentation ER - TY - JOUR T1 - An experimental model for subclinical edema disease (Escherichia coli enterotoxemia) manifest as vascular necrosis in pigs. AN - 16211195; 2748083 AB - An experimental model for subclinical edema disease was developed in weanling pigs. In multiple experiments, 3-week-old pigs were weaned, then inoculated intragastrically with 10 super(10) colony-forming units of an SLT-IIv-positive strain of Escherichia coli originally isolated from a pig with edema disease (principals). Control pigs were inoculated with a nonpathogenic E. coli strain. Of 39 principals, 8 developed clinical edema disease within 14 days after inoculation. However, 20 of 21 principals that did not develop clinical signs of edema disease, but were submitted for necropsy examination at 14 days after inoculation, had characteristic vascular lesions of edema disease. Vascular lesions, found principally in ileum and brain, consisted of segmental necrosis of myocytes in the tunica media of small arteries and arterioles. JF - American Journal of Veterinary Research AU - Kausche, F M AU - Dean, E A AU - Arp, L H AU - Samuel, JE AU - Moon, H W AD - Natl. Anim. Dis. Cent., USDA, Agric. Res. Serv., P.O. Box 70, Ames, IA 50010, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 281 EP - 287 VL - 53 IS - 3 SN - 0002-9645, 0002-9645 KW - pigs KW - edema disease KW - Microbiology Abstracts B: Bacteriology; Toxicology Abstracts KW - enterotoxemia KW - Escherichia coli KW - animal models KW - X 24171:Microbial KW - J 02823:In vitro and in vivo effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16211195?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Journal+of+Veterinary+Research&rft.atitle=An+experimental+model+for+subclinical+edema+disease+%28Escherichia+coli+enterotoxemia%29+manifest+as+vascular+necrosis+in+pigs.&rft.au=Kausche%2C+F+M%3BDean%2C+E+A%3BArp%2C+L+H%3BSamuel%2C+JE%3BMoon%2C+H+W&rft.aulast=Kausche&rft.aufirst=F&rft.date=1992-01-01&rft.volume=53&rft.issue=3&rft.spage=281&rft.isbn=&rft.btitle=&rft.title=American+Journal+of+Veterinary+Research&rft.issn=00029645&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Escherichia coli; enterotoxemia; animal models ER - TY - JOUR T1 - Identification of peptides from the adenine binding domains of ATP and AMP in adenylate kinase: Isolation of photoaffinity-labeled peptides by metal chelate chromatography. AN - 16210531; 2741297 AB - Photoaffinity labeling with azidoadenine nucleotides was used to identify peptides from the ATP and AMP binding domains on chicken muscle adenylate kinase. Competition binding studies and enzyme assays showed that the 8-azido analogues of Ap sub(4)A and ATP modified only the MgATP super(2-) site of adenylate kinase, whereas the 2-zido analogue of ADP modified the enzyme at both the ATP and AMP sites. The positions of the two nucleotide binding sites on the enzyme were deduced by isolating and sequencing the modified peptides. JF - Biochemistry (Washington) AU - Salvucci, ME AU - Chavan, A J AU - Haley, B E AD - USDA-ARS, Univ. Kentucky, 107-A Anim. Pathol. Build., Lexington, KY 40546-0076, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 4479 EP - 4487 VL - 31 IS - 18 SN - 0006-2960, 0006-2960 KW - adenine KW - adenylate kinase KW - binding KW - chickens KW - domains KW - muscles KW - photoaffinity labelling KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16210531?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemistry+%28Washington%29&rft.atitle=Identification+of+peptides+from+the+adenine+binding+domains+of+ATP+and+AMP+in+adenylate+kinase%3A+Isolation+of+photoaffinity-labeled+peptides+by+metal+chelate+chromatography.&rft.au=Salvucci%2C+ME%3BChavan%2C+A+J%3BHaley%2C+B+E&rft.aulast=Salvucci&rft.aufirst=ME&rft.date=1992-01-01&rft.volume=31&rft.issue=18&rft.spage=4479&rft.isbn=&rft.btitle=&rft.title=Biochemistry+%28Washington%29&rft.issn=00062960&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Infestation and dispersal of Noctuidonema guyanense (Nematoda: Aphelenchoididae) on Spodoptera frugiperda (Lepidoptera: Noctuidae). AN - 16207111; 2734819 AB - The distribution, dispersal, and population growth of an ectoparasitic nematode, Noctuidonema guyanense Remillet & Silvain, were studied on mating pairs of Spodoptera frugiperda (J. E. Smith) in the laboratory. Nematode populations were the greatest on terminal abdominal segments of wild S. frugiperda males. Eggs and neonates were predominant on abdominal segments eight to ten, whereas juveniles were distributed widely along a host's abdomen and thorax. Although female nematodes moved from infested male moths to noninfested female moths within 15 min after initiation of host mating, male and immature nematodes often did not transfer until 1.5-2.0 h after host copulation began. Nematodes migrated anteriorly to the fifth abdominal segment of new hosts in 4-7 h. Forty-eight percent of the host-matings resulted in the transfer of an average of 5.3 nematodes to new hosts. JF - Environmental Entomology AU - Rogers, CE AU - Marti, OG Jr AD - Insect Biol. and Popul. Manage. Res. Lab., USDA-ARS, Tifton, GA 31793, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 417 EP - 421 VL - 21 IS - 2 SN - 0046-225X, 0046-225X KW - Noctuidonema guyanense KW - Lepidoptera KW - Nematoda KW - Noctuidae KW - Spodoptera frugiperda KW - infestation KW - parasitism KW - population growth KW - spatial distribution KW - Biotechnology and Bioengineering Abstracts; Ecology Abstracts; Entomology Abstracts KW - D 04659:Insects KW - Z 05182:Pathology KW - W 30513:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16207111?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Infestation+and+dispersal+of+Noctuidonema+guyanense+%28Nematoda%3A+Aphelenchoididae%29+on+Spodoptera+frugiperda+%28Lepidoptera%3A+Noctuidae%29.&rft.au=Rogers%2C+CE%3BMarti%2C+OG+Jr&rft.aulast=Rogers&rft.aufirst=CE&rft.date=1992-01-01&rft.volume=21&rft.issue=2&rft.spage=417&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Spodoptera frugiperda; Noctuidae; Lepidoptera; Nematoda; infestation; spatial distribution; population growth; parasitism ER - TY - JOUR T1 - Identification and cloning of Bradyrhizobium japonicum genes expressed strain selectively in soil and rhizosphere. AN - 16204675; 2734595 AB - The growth of Bradyrhizobium japonicum USDA 110 and USDA 438 in soil extract-supplemented medium led to transcription of a large amount of DNA not expressed in basal medium. Strain USDA 438 was more competitive for the nodulation of soybean than strain USDA 110. To identify and isolate DNA regions which were expressed specifically in strain USDA 438 but not in strain USDA 110 in response to soil extract or soybean root exudate, we developed a subtractive RNA hybridization procedure. Several cosmid clones which showed strain-specific gene expression were isolated from a USDA 438 gene library. Two clones enhanced competitive nodulation when mobilized to USDA 110. The method described may be useful for identifying genes expressed in response to environmental stimuli or genes expressed differently in related microbial strains. JF - Applied and Environmental Microbiology AU - Bhagwat, A A AU - Keister, D L AD - Soybean and Alfalfa Res. Lab., Build. 011, HH-19, BARC-W, Agric. Res. Ser., USDA, Beltsville, MD 20705-2350, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1490 EP - 1495 VL - 58 IS - 5 SN - 0099-2240, 0099-2240 KW - Bradyrhizobium japonicum KW - Glycine max KW - cloning KW - gene expression KW - genes KW - nodulation KW - rhizosphere KW - soil KW - transcription KW - Genetics Abstracts; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - A 01051:Nitrogen cycle KW - G 07320:Bacterial genetics KW - J 02901:Soil and plants KW - W 30514:Soil organisms KW - J 02740:Genetics and evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16204675?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Identification+and+cloning+of+Bradyrhizobium+japonicum+genes+expressed+strain+selectively+in+soil+and+rhizosphere.&rft.au=Bhagwat%2C+A+A%3BKeister%2C+D+L&rft.aulast=Bhagwat&rft.aufirst=A&rft.date=1992-01-01&rft.volume=58&rft.issue=5&rft.spage=1490&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Bradyrhizobium japonicum; Glycine max; genes; cloning; gene expression; soil; rhizosphere; nodulation; transcription ER - TY - JOUR T1 - Data needs for avian conservation biology: Have we avoided critical research?. AN - 16199283; 2729775 JF - Condor AU - Verner, J AD - USDA Forest Serv., Pacific Southwest Res. Stn., 2081 E. Sierra Ave., Fresno, CA 93710, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 301 EP - 303 VL - 94 IS - 1 SN - 0010-5422, 0010-5422 KW - research programmes KW - Ecology Abstracts KW - Aves KW - conservation KW - D 04671:Birds KW - D 04705:Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16199283?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Condor&rft.atitle=Data+needs+for+avian+conservation+biology%3A+Have+we+avoided+critical+research%3F.&rft.au=Verner%2C+J&rft.aulast=Verner&rft.aufirst=J&rft.date=1992-01-01&rft.volume=94&rft.issue=1&rft.spage=301&rft.isbn=&rft.btitle=&rft.title=Condor&rft.issn=00105422&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; conservation ER - TY - JOUR T1 - Short-term effects of Hurricane Gilbert on terrestrial bird populations on Jamaica. AN - 16199239; 2729769 AB - Four months after Hurricane Gilbert we resampled 10 habitats that were sampled previously in December 1987. Overall, we found no change in the total number of species nor in the mean number of individual birds detected. The mean number of individuals declined in three montane habitats (cloud forest, pine plantation, and coffee plantation), where structural damage to tree trunks and branches was often severe, and trees were still defoliated. In the mountains, higher proportions of nectarivores and fruit/seedeaters declined than insectivores. We found increased mean numbers of individuals in two lowland sites (wet limestone forest and mangroves), where structural damage to trees was also severe, but where new foliage was present. Mean numbers of individuals did not change in five other lowland habitats, despite varying levels of vegetation damage. Populations of several species declined in some habitats and increased in others, a pattern consistent with interhabitat migration. JF - Auk AU - Wunderle, JM Jr AU - Lodge, D J AU - Waide, R B AD - Inst. Trop. For., Southern Forest Exp. Stn., USDA Forest Serv., P.O. Box B, Palmer, Puerto Rico 00721 Y1 - 1992 PY - 1992 DA - 1992 SP - 148 EP - 166 VL - 109 IS - 1 SN - 0004-8038, 0004-8038 KW - Jamaica KW - Ecology Abstracts KW - Aves KW - population levels KW - hurricanes KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16199239?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Auk&rft.atitle=Short-term+effects+of+Hurricane+Gilbert+on+terrestrial+bird+populations+on+Jamaica.&rft.au=Wunderle%2C+JM+Jr%3BLodge%2C+D+J%3BWaide%2C+R+B&rft.aulast=Wunderle&rft.aufirst=JM&rft.date=1992-01-01&rft.volume=109&rft.issue=1&rft.spage=148&rft.isbn=&rft.btitle=&rft.title=Auk&rft.issn=00048038&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; population levels; hurricanes ER - TY - JOUR T1 - Impact of pasture development on winter bird communities in Belize, Central America. AN - 16199161; 2729761 AB - We studied bird use of actively grazed and abandoned (2-4 years) pastures during February 1990 in Belize, where pastures often are maintained by repeated mowing. A total of 46 species was observed in the two pasture types, with 15 species detected in grazed and 39 in abandoned. Species richness for both migrants and residents was lower by >50% in grazed pastures. Overall abundance of birds was lower by nearly 70% in grazed pastures compared with the more structurally diverse abandoned pastures. Based on data from a concurrent study on bird use of forest interior habitat in Belize, 2-4 times more resident species would be expected in nearby broadleaved forests compared to an equal census effort in grazed pastures. In contrast, only about 1.5 times more migrant bird species would be predicted in broadleaved forest interior than in grazed pastures. JF - Condor AU - Saab, V A AU - Petit AD - USDA Forest Serv., Intermt. Res. Stn., 316 E. Myrtle, Boise, ID 83702, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 66 EP - 71 VL - 94 IS - 1 SN - 0010-5422, 0010-5422 KW - Ecology Abstracts KW - Aves KW - migration KW - community composition KW - Belize KW - pasture KW - winter KW - species richness KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16199161?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Condor&rft.atitle=Impact+of+pasture+development+on+winter+bird+communities+in+Belize%2C+Central+America.&rft.au=Saab%2C+V+A%3BPetit&rft.aulast=Saab&rft.aufirst=V&rft.date=1992-01-01&rft.volume=94&rft.issue=1&rft.spage=66&rft.isbn=&rft.btitle=&rft.title=Condor&rft.issn=00105422&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; Belize; community composition; species richness; migration; pasture; winter ER - TY - JOUR T1 - Are North American populations of gypsy moth (Lepidoptera: Lymantriidae) bimodal?. AN - 16191676; 2728143 AB - Previous studies indicate that North American gypsy moth, Lymantria dispar (L.), populations are driven by a numerically bimodal replacement rate model: N sub(t+1)/N sub(t) = f(N), where f(N) is bimodal, resulting in two equilibrium densities. Under this theory, populations are regulated about a low density equilibrium for many years until some perturbation (usually mass immigration) elevates populations to high densities, where they are regulated about a high-density equilibrium until crashing. In this paper, the evidence for and against numerical bimodality in gypsy moth populations is reviewed. The Melrose Highlands data (egg mass densities at 83 plots in New England from 1910 to 1931) were reexamined. These analyses indicated bimodality in f(N) when data were expressed as yearly means of several plots in a zone approximately equals 30 km in diameter, but there was no clear evidence of bimodality in the dynamics at individual plots. Density fluctuations in these relatively small plots (0.07 ha) were instead dominated by apparently random effects. JF - Environmental Entomology AU - Liebhold, AM AD - USDA Forest Serv., Northeastern Forest Exp. Stn., Morgantown, WV 26505, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 221 EP - 229 VL - 21 IS - 2 SN - 0046-225X, 0046-225X KW - Entomology Abstracts; Ecology Abstracts KW - reviews KW - Lepidoptera KW - Lymantriidae KW - life cycle KW - density dependence KW - population dynamics KW - Lymantria dispar KW - D 04659:Insects KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16191676?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Are+North+American+populations+of+gypsy+moth+%28Lepidoptera%3A+Lymantriidae%29+bimodal%3F.&rft.au=Liebhold%2C+AM&rft.aulast=Liebhold&rft.aufirst=AM&rft.date=1992-01-01&rft.volume=21&rft.issue=2&rft.spage=221&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lymantria dispar; Lymantriidae; Lepidoptera; population dynamics; life cycle; reviews; density dependence ER - TY - JOUR T1 - An analysis of the marginal value of cropland and nitrogen fertilizer use under alternative farm programs. AN - 16191526; 2730482 AB - The analysis in this paper is directed at estimating the impact on the marginal value of a crop base acre and on nitrogen fertilizer use of alternative farm programs designed to encourage planting flexibility in response to changing relative agricultural commodity prices. Four policy alternatives are considered: the current farm program, the Normal Crop Acreage option, the triple-base option, and the Lugar-Leahy (USDA) option. Encouraging planting flexibility via the Lugar-Leahy (USDA) option can be an effective way to reduce the excessive application of nitrogen fertilizer. Additionally, an effective farm policy designed to encourage growing crops besides those used to calculate the base acreage should detach any program deficiency payments from the number of program base acres. JF - Applied Mathematical Modelling AU - Huang, Wen-Yuan AU - Uri, N D AD - CED/SAB (Room 1240), USDA, 1301 New York Ave., NW, Washington, DC 20005, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 16 EP - 25 VL - 16 IS - 1 SN - 0307-904X, 0307-904X KW - agriculture KW - environmental impact KW - fertilizers KW - groundwater KW - groundwater pollution KW - mathematical models KW - nitrogen KW - Health & Safety Science Abstracts KW - H SE2.8.2:CHEMICALS (CORROSION) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16191526?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Mathematical+Modelling&rft.atitle=An+analysis+of+the+marginal+value+of+cropland+and+nitrogen+fertilizer+use+under+alternative+farm+programs.&rft.au=Huang%2C+Wen-Yuan%3BUri%2C+N+D&rft.aulast=Huang&rft.aufirst=Wen-Yuan&rft.date=1992-01-01&rft.volume=16&rft.issue=1&rft.spage=16&rft.isbn=&rft.btitle=&rft.title=Applied+Mathematical+Modelling&rft.issn=0307904X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - agriculture; groundwater pollution; nitrogen; fertilizers; environmental impact; mathematical models; groundwater ER - TY - JOUR T1 - Influence of temperature on rate of development and color patterns of queen honey bees (Hymenoptera: Apidae). AN - 16190943; 2728134 AB - The effect of temperature on the rate of development and color patterns of two honey bee queen lines (black and yellow) was examined. The queens completed the postcapping period (last instar and pupal stages) in incubators maintained at temperatures corresponding with the natural range found in the brood nest: 30.5, 33.5, and 35.5 degree C. The black line required significantly fewer accumulated degree-days for development than the yellow line at all temperatures. The queens from both lines had significantly more yellow coloration on the integument when they completed the postcapping period at 35.5 degree C than at 30.5 degree C. These results suggest that brood nest temperatures play a more important role in the rate of development of queen lines and in the phenotypic expression of color patterns than has previously been recognized. JF - Environmental Entomology AU - Spivak, M AU - Zeltzer, A AU - DeGrandi-Hoffman, G AU - Martin, J H AD - Carl Hayden Bee Res. Cent., USDA-ARS, 2000 E. Allen Rd., Tucson, AZ 85719, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 364 EP - 370 VL - 21 IS - 2 SN - 0046-225X, 0046-225X KW - Entomology Abstracts; Ecology Abstracts KW - air temperature KW - development KW - Apis mellifera KW - queens KW - coloration KW - Hymenoptera KW - Apidae KW - D 04659:Insects KW - Z 05190:Environmental effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16190943?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Influence+of+temperature+on+rate+of+development+and+color+patterns+of+queen+honey+bees+%28Hymenoptera%3A+Apidae%29.&rft.au=Spivak%2C+M%3BZeltzer%2C+A%3BDeGrandi-Hoffman%2C+G%3BMartin%2C+J+H&rft.aulast=Spivak&rft.aufirst=M&rft.date=1992-01-01&rft.volume=21&rft.issue=2&rft.spage=364&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Apis mellifera; Apidae; Hymenoptera; development; coloration; air temperature; queens ER - TY - JOUR T1 - Fire regimes for pine-grassland communities in the southeastern United States. AN - 16190926; 2722938 AB - Four combinations of season and frequency of burning were applied in Coastal Plain loblolly pine stands over a 43-year period. Overstory species composition and growth were unaffected by treatment. Above-ground portions of small hardwoods (less than 12.5 cm d.b.h.) were killed and replaced by numerous sprouts under periodic summer, periodic winter, and annual winter burning regimes. With annual summer burning, small hardwoods and shrubs were killed and replaced by vegetation typical of grassland communities. Grasses and forbs also dominated the understory of annual winter burns but numerous hardwood sprouts survived. Study results emphasize that frequent burning over a long period is needed to create and maintain the pine-grassland community observed by the first European settlers of the southeast. JF - Forest Ecology and Management AU - Waldrop, T A AU - White, D L AU - Jones, S M AD - USDA Forest Serv., Southeastern Forest Exp. Stn., 239 Lehotsky Hall, Clemson, SC 29634-1003, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 195 EP - 210 VL - 47 IS - 1-4 SN - 0378-1127, 0378-1127 KW - Ecology Abstracts KW - forests KW - species composition KW - Pinus taeda KW - grasslands KW - seasonal variations KW - burning KW - USA, Southeast KW - growth KW - D 04125:Temperate forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16190926?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Fire+regimes+for+pine-grassland+communities+in+the+southeastern+United+States.&rft.au=Waldrop%2C+T+A%3BWhite%2C+D+L%3BJones%2C+S+M&rft.aulast=Waldrop&rft.aufirst=T&rft.date=1992-01-01&rft.volume=47&rft.issue=1-4&rft.spage=195&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinus taeda; USA, Southeast; burning; species composition; growth; seasonal variations; grasslands; forests ER - TY - JOUR T1 - Effects of even-aged management on forest birds at northern hardwood stand interfaces. AN - 16186859; 2722851 AB - Breeding birds were counted along transects across edges of even-aged northern hardwood stands in the White Mountain National Forest, New Hampshire, U.S.A. Two replicate transects across each of 7 edge types representing 3 classes of contrast (abrupt, intermediate, and subtle) were sampled during June 1983-1985 to define species assemblages at stand edges and estimate the width and longevity of functional edges under even-aged management. Of 52 bird species, 28 occurred across all three classes of edges, but no unique species or assemblages were evident at the edges between stands. Across edges between young stands, bird species richness declined linearly from seedling stand interior, but no differences in cumulative bird species richness by edge contrast type were found. The proportion of edge-detected species was higher in the younger stand in all edge contrast types except the most subtle edge type between mature stands. JF - Forest Ecology and Management AU - DeGraaf, R M AD - USDA Forest Serv., Northeastern Forest Exp. Stn., Univ. Massachusetts, Amherst, MA 01003, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 95 EP - 110 VL - 47 IS - 1-4 SN - 0378-1127, 0378-1127 KW - Ecology Abstracts KW - Aves KW - forest management KW - breeding KW - species richness KW - edge effect KW - D 04700:Management KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16186859?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Effects+of+even-aged+management+on+forest+birds+at+northern+hardwood+stand+interfaces.&rft.au=DeGraaf%2C+R+M&rft.aulast=DeGraaf&rft.aufirst=R&rft.date=1992-01-01&rft.volume=47&rft.issue=1-4&rft.spage=95&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; forest management; species richness; edge effect; breeding ER - TY - JOUR T1 - Mating by the fall armyworm (Lepidoptera: Noctuidae): Frequency, duration, and effect of temperature. AN - 16184634; 2728133 AB - Mating by the fall armyworm, Spodoptera frugiperda (J.E. Smith), was studied in the laboratory. With the night cycle beginning at 2100 hours, 73-84% of the matings occurred between 2200 and 0300 hours. However, mating pairs were observed throughout the night. Most matings (80%) lasted longer than 45 min. Mean duration of mating averaged 130 min. Based on the number of spermatophores in the bursa copulatrix of mated females, female moths mated a mean of 3.7 times (range, 0-11) during their life span. Males mated a mean of 6.7 times (range, 0-15) during their life span. Matings by males were most frequent during the first three nights after their emergence. Although males mated throughout most of their adult life, the incidence of mating declined as the moths aged. The number of matings peaked at 25 and 30 degree C with little mating at 10 or 15 degree C. JF - Environmental Entomology AU - Simmons, A M AU - Marti, OG Jr AD - Insect Biol. and Popul. Manage. Res. Lab., USDA-ARS, Tifton, GA 31793-0748, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 371 EP - 375 VL - 21 IS - 2 SN - 0046-225X, 0046-225X KW - photoperiod KW - Entomology Abstracts; Ecology Abstracts KW - air temperature KW - Spodoptera frugiperda KW - Noctuidae KW - mating KW - Lepidoptera KW - D 04659:Insects KW - Z 05190:Environmental effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16184634?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Mating+by+the+fall+armyworm+%28Lepidoptera%3A+Noctuidae%29%3A+Frequency%2C+duration%2C+and+effect+of+temperature.&rft.au=Simmons%2C+A+M%3BMarti%2C+OG+Jr&rft.aulast=Simmons&rft.aufirst=A&rft.date=1992-01-01&rft.volume=21&rft.issue=2&rft.spage=371&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Spodoptera frugiperda; Noctuidae; Lepidoptera; mating; air temperature ER - TY - JOUR T1 - Effects of time of day, adult food, and host fruit on incidence of calling by male Caribbean fruit flies (Diptera: Tephritidae). AN - 16184280; 2731398 AB - Male Caribbean fruit flies, Anastrepha suspensa (Loew), exhibited two distinct calling periods under greenhouse conditions, one within the first hour of daylight and another during mid to late afternoon. In the laboratory, males called only during the afternoon. In the greenhouse, this afternoon calling period was not observed when flies were deprived of food for that day. High rates of calling were observed in the afternoon, if flies were provided either a mixture of hydrolyzed torula yeast and cane sugar, or pure sucrose, but not if provided yeast alone, or deprived of food. Deprivation of sugar for 8 h resulted in a 30% reduction in calling rates in the afternoon, whereas such deprivation for 23 h (from late afternoon to midafternoon) nearly eliminated calling during that period. JF - Environmental Entomology AU - Landolt, P J AU - Sivinski, J AD - Insect Attractants, Behav., and Basic Biol. Res. Lab., USDA-ARS, Gainesville, FL 32604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 382 EP - 387 VL - 21 IS - 2 SN - 0046-225X, 0046-225X KW - Chemoreception Abstracts; Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - environmental conditions KW - calling behavior KW - Tephritidae KW - Anastrepha suspensa KW - Diptera KW - sex pheromone KW - D 04659:Insects KW - Z 05194:Communication KW - Y 25363:Insects KW - R 18051:Reproductive behavior UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16184280?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Effects+of+time+of+day%2C+adult+food%2C+and+host+fruit+on+incidence+of+calling+by+male+Caribbean+fruit+flies+%28Diptera%3A+Tephritidae%29.&rft.au=Landolt%2C+P+J%3BSivinski%2C+J&rft.aulast=Landolt&rft.aufirst=P&rft.date=1992-01-01&rft.volume=21&rft.issue=2&rft.spage=382&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Anastrepha suspensa; Tephritidae; Diptera; calling behavior; sex pheromone; environmental conditions ER - TY - JOUR T1 - Interaction of wild males and laboratory-adapted females of the Mexican fruit fly (Diptera: Tephritidae) in natural habitats. AN - 16167842; 2712760 AB - Despite > 40 yr of ecological and behavioral research on reproductive interactions involved in sterile insect release programs, experimental measurement of the intensity of intermale competition for mates and the role of sterile females in these programs has rarely been addressed. Experiments described in this study were designed to evaluate these factors. Virgin females from a mass-rearing strain (mass reared for 36 yr) of the Mexican fruit fly, Anastrepha ludens (Loew), were released and subsequently recaptured along with native Mexican fruit flies in natural habitats in Nuevo Leon, Mexico. Tests were carried out at six locations and replicated four times. Recaptured females were dissected to determine mating status. Data were analysed to determine whether the released females mated with native males, and to evaluate the influence of test site, test date, and wild male and female density on rates of recapture of the released females and their mating status. Results showed that 5-50% of the recaptured females mated with native males. This indicates that released females (even from a strain adapted to mass rearing) may occupy a significant amount of native male reproductive effort and that males in native populations have excess reproductive capacity. JF - Environmental Entomology AU - Mangan, R L AU - Moreno, D S AU - Sanchez, M AD - Crop Quality and Fruit Insects Res., USDA-ARS, 2301 S. International Blvd., Weslaco, TX 78596, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 294 EP - 300 VL - 21 IS - 2 SN - 0046-225X, 0046-225X KW - reproduction KW - release KW - females KW - Entomology Abstracts; Ecology Abstracts KW - Anastrepha ludens KW - biological control KW - sterility KW - Tephritidae KW - breeding success KW - Diptera KW - D 04659:Insects KW - Z 05207:Agricultural & general applied entomology KW - D 04710:Control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16167842?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Interaction+of+wild+males+and+laboratory-adapted+females+of+the+Mexican+fruit+fly+%28Diptera%3A+Tephritidae%29+in+natural+habitats.&rft.au=Mangan%2C+R+L%3BMoreno%2C+D+S%3BSanchez%2C+M&rft.aulast=Mangan&rft.aufirst=R&rft.date=1992-01-01&rft.volume=21&rft.issue=2&rft.spage=294&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Anastrepha ludens; Tephritidae; Diptera; biological control; sterility; breeding success ER - TY - JOUR T1 - Reclaiming fiber from newsprint dry methods. AN - 16155902; 2702790 AB - Economical and environmental considerations suggest the desirability of recycling old newspapers to newsprint in urban areas, using methods with reduced demand for process water. In bench-scale experiments, we successfully dry-fiberized old newspapers at moisture contents from 2 to 52%. Handsheets of acceptable appearance were made from dry-processed fiber by both air-laid and water-laid processes. Water-laid handsheets of dry-fiberized furnish had less strength than did handsheets from wet-processed fiber. Air-laid handsheets yielded lower density and has less tensile strength compared to water-laid handsheets of the same fiber. Methods for increasing tensile strength are suggested. JF - J. HAZARDOUS MATER. AU - Gunderson, DE AU - Scott, C T AU - Gleisner, R L AU - Harten, T M AD - USDA Forest Serv., Forest Prod. Lab., One Gifford Pinchot Dr., Madison, WI 53705-2398, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 297 EP - 311 VL - 29 IS - 2 KW - economics KW - newsprint KW - Health & Safety Science Abstracts; Pollution Abstracts KW - fibers KW - recycling KW - urban areas KW - H SI6.25:WASTE DISPOSAL KW - P 4000:WASTE MANAGEMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16155902?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=J.+HAZARDOUS+MATER.&rft.atitle=Reclaiming+fiber+from+newsprint+dry+methods.&rft.au=Gunderson%2C+DE%3BScott%2C+C+T%3BGleisner%2C+R+L%3BHarten%2C+T+M&rft.aulast=Gunderson&rft.aufirst=DE&rft.date=1992-01-01&rft.volume=29&rft.issue=2&rft.spage=297&rft.isbn=&rft.btitle=&rft.title=J.+HAZARDOUS+MATER.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - recycling; fibers; urban areas ER - TY - JOUR T1 - Predicting digestible protein and digestible dry matter in tannin-containing forages consumed by ruminants. AN - 16150468; 2699138 AB - Equations for predicting digestible protein and digestible dry matter on the basis of laboratory analytical techniques (Robbins at el. 1987a, b) were tested with in vivo digestion trials using black-tailed deer (Odocoileus hemionus sitkensis ). Leaves of seven natural, tannin-containing forages and twigs from one browse species were fed fresh in total collection digestion trials. The equation for estimating digestible protein was based on the plant's crude protein content and a measure of the tannin's protein-precipitating capacity. The equation for estimating digestible dry matter was based on a measure of tanning astringency and the concentrations of neutral detergent fiber, lignin, cutin, and biogenic silica. Both equations predicted in vivo results accurately, although a slight modification of the laboratory technique was recommended for determining neutral detergent fiber. Sodium sulfite should be used when analyzing tannin-containing forb and shrub leaves and omitted for relatively tannin-free forages. JF - Ecology AU - Hanley, T A AU - Robbins, C T AU - Hagerman, A E AU - McArthur, C AD - USDA Forest Serv., Pacific Northwest Res. Stn., For. Sci. Lab., P.O. Box 20909, Juneau, AK 99802-0909, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 537 EP - 541 VL - 73 IS - 2 SN - 0012-9658, 0012-9658 KW - digestibility KW - models KW - protein KW - tannin KW - Ecology Abstracts KW - Odocoileus hemionus sitkensis KW - dry matter KW - D 04672:Mammals KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16150468?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecology&rft.atitle=Predicting+digestible+protein+and+digestible+dry+matter+in+tannin-containing+forages+consumed+by+ruminants.&rft.au=Hanley%2C+T+A%3BRobbins%2C+C+T%3BHagerman%2C+A+E%3BMcArthur%2C+C&rft.aulast=Hanley&rft.aufirst=T&rft.date=1992-01-01&rft.volume=73&rft.issue=2&rft.spage=537&rft.isbn=&rft.btitle=&rft.title=Ecology&rft.issn=00129658&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Odocoileus hemionus sitkensis; dry matter ER - TY - JOUR T1 - New approach to mark insects for feeding and dispersal studies. AN - 16146582; 2697977 AB - This study examines the feasibility of marking Lygus hesperus Knight adults externally by submersion in rabbit immunoglobulin G (IgG) solution. Rabbit IgG retention time was measured in the laboratory on insects submerged in an IgG solution. We marked insects with rabbit IgG and ran an enzyme-linked immunosorbent assay (ELISA) with its complementary antibody (antirabbit IgG). We concurrently ran an ELISA assay using the same samples against an egg-specific L. hesperus monoclonal antibody (MAb) to measure the presence of L. hesperus egg antigen in the insect. A previously developed egg-specific MAb to L. hesperus enabled us to assay simultaneously adult females (which possess the egg antigen) and adult males for the presence of L. hesperus egg antigen. JF - Environmental Entomology AU - Hagler, J R AU - Cohen, A C AU - Bradley-Dunlop, D AU - Enriquez, F J AD - Honey Bee Biol., and Biocontrol Insects Lab., USDA-ARS, Tucson, AZ 85719, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 20 EP - 25 VL - 21 IS - 1 SN - 0046-225X, 0046-225X KW - Lygus hesperus KW - monoclonal antibodies KW - feeding behaviour KW - Heteroptera KW - Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - Miridae KW - dispersal KW - enzyme-linked immunosorbent assay KW - marking KW - Z 05204:Dispersal & migration KW - D 04659:Insects KW - Z 05199:Feeding KW - D 04002:Surveying and remote sensing KW - Y 25653:Insects KW - Y 25863:Insects KW - Z 05156:Techniques UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16146582?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=New+approach+to+mark+insects+for+feeding+and+dispersal+studies.&rft.au=Hagler%2C+J+R%3BCohen%2C+A+C%3BBradley-Dunlop%2C+D%3BEnriquez%2C+F+J&rft.aulast=Hagler&rft.aufirst=J&rft.date=1992-01-01&rft.volume=21&rft.issue=1&rft.spage=20&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Miridae; marking; dispersal; enzyme-linked immunosorbent assay ER - TY - JOUR T1 - Substitution of full-fat soybeans for commercial soybean meal in diets for shrimp, Penaeus vannamei . AN - 16145119; 2689620 AB - Five isonitrogenous, isocaloric diets containing 0, 8.95, 17.90, 26.85, or 35.8% double dry-extruded full-fat soybeans (FFSB) as replacement for 0, 7, 14, 21, and 28% commercial solvent-extracted soybean meal (SBM) were fed to juvenile Penaeus vannamei to satiation six times per day for 70 days. The water stability of pellets tested at 4 and 8 hours were not significantly (P > 0.05) different, although the diet with the highest level of FFSB had the lowest water stability consistently. Weight gains, survival, dry matter feed intake, feed conversion, and protein efficiency ratio were essentially the same for all diets. Whole body percentages of moisture, fat, crude protein, and ash were also similar for shrimp in all treatments. JF - Journal of Applied Aquaculture AU - Lim, C AU - Dominy, W AD - USDA-ARS-PW, Tropical Aquaculture Res. Unit, Oceanic Inst., Makapuu Point, P.O. Box 25280, Honolulu, HI 96825, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 35 EP - 46 VL - 1 IS - 3 SN - 1045-4438, 1045-4438 KW - Penaeus vannamei KW - diets KW - full-fat soybeans KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Oceanic Abstracts; ASFA Aquaculture Abstracts KW - feeding experiments KW - Marine KW - artificial feeding KW - animal nutrition KW - shrimp culture KW - feed KW - Q3 08583:Shellfish culture KW - Q1 08583:Shellfish culture KW - O 5060:Aquaculture UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16145119?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Applied+Aquaculture&rft.atitle=Substitution+of+full-fat+soybeans+for+commercial+soybean+meal+in+diets+for+shrimp%2C+Penaeus+vannamei+.&rft.au=Lim%2C+C%3BDominy%2C+W&rft.aulast=Lim&rft.aufirst=C&rft.date=1992-01-01&rft.volume=1&rft.issue=3&rft.spage=35&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Aquaculture&rft.issn=10454438&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - feeding experiments; animal nutrition; artificial feeding; feed; shrimp culture; Marine ER - TY - JOUR T1 - Relations between activity of Dendroctonus rufipennis Kirby on Lutz spruce and blue stain associated with Leptographium abietinum (Peck) Wingfield. AN - 16140630; 2683767 AB - Pruning and girdling treatments to frontalin-baited Lutz spruce (Picea x lutzii Little) trees were evaluated in 1987 and 1988 for their effect on five responses: number of spruce beetle (Dendroctonus rufipennis Kirby) attacks, length of egg galleries, percent of stem wood perimeter and area visibly affected by blue stain, and percent of cambial discoloration. All responses decreased significantly with sample height both in 1987 and 1988. Treatment generally had little or no effect on either spruce beetle activity or blue stain development; the only exception was the effect of treatment on percent cambial discoloration in 1987. For both years, spruce beetle activity and blue stain development were highly interrelated. Number of successful attacks was more highly correlated with the three blue-stain measures than was total number of attacks. For both years, gallery length was more highly correlated with the blue-stain measures than was the number of attacks. JF - Forest Ecology and Management AU - Reynolds, K M AD - USDA Forest Serv., Pacific Northwest Res. Stn., Inst. Northern Forestry, 308 Tanana Dr., Fairbanks, AK 99775-5500, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 71 EP - 86 VL - 47 IS - 1-4 SN - 0378-1127, 0378-1127 KW - pruning KW - Leptographium abietinum KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology; Entomology Abstracts KW - control programs KW - Scolytidae KW - Coleoptera KW - Dendroctonus rufipennis KW - Picea lutzii KW - K 03089:Fungi: plant KW - Z 05207:Agricultural & general applied entomology KW - A 01045:Diseases & treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16140630?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Relations+between+activity+of+Dendroctonus+rufipennis+Kirby+on+Lutz+spruce+and+blue+stain+associated+with+Leptographium+abietinum+%28Peck%29+Wingfield.&rft.au=Reynolds%2C+K+M&rft.aulast=Reynolds&rft.aufirst=K&rft.date=1992-01-01&rft.volume=47&rft.issue=1-4&rft.spage=71&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Picea lutzii; Dendroctonus rufipennis; Scolytidae; Coleoptera; control programs ER - TY - JOUR T1 - Nitrogenase activity, nitrogen fixation, and nitrogen inputs by lupines at Mount St. Helens. AN - 16126297; 2678561 AB - We measured the timing and magnitude of nitrogenase activity and N sub(2) fixation by lupines colonizing early successional volcanic sites at Mount St. Helens. Nitrogenase activity (measured by acetylene reduction) in Lupinus lepidus) growing at a pyroclastic site exhibited significant diurnal trends, with lowest ethylene evolution rates at night. Nitrogenase activity also followed seasonal trends, with high rates in June, very low levels in August, the dry warm part of the season, and a partial recovery of nitrogenase activities measured at several sites suggested that rates of N sub(2) fixation were highest in L. lepidus) growing at disturbed low N sites. Adult lupine C and N composition also varied during the growing season, with trends correlated with seasonal patterns of nitrogenase activity. JF - Ecology AU - Halvorson, J J AU - Franz, E H AU - Smith, J L AU - Black, R A AD - USDA-ARS, Land Manage. and Water Conserv. Unit, 215 Johnson Hall-6421, Washington State Univ., Pullman, WA 99164, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 87 EP - 98 VL - 73 IS - 1 SN - 0012-9658, 0012-9658 KW - nitrogen fixation KW - nitrogenase KW - Ecology Abstracts KW - USA, Washington, Mount St. Helens KW - Lupinus lepidus KW - enzymatic activity KW - D 04637:Legumes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16126297?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecology&rft.atitle=Nitrogenase+activity%2C+nitrogen+fixation%2C+and+nitrogen+inputs+by+lupines+at+Mount+St.+Helens.&rft.au=Halvorson%2C+J+J%3BFranz%2C+E+H%3BSmith%2C+J+L%3BBlack%2C+R+A&rft.aulast=Halvorson&rft.aufirst=J&rft.date=1992-01-01&rft.volume=73&rft.issue=1&rft.spage=87&rft.isbn=&rft.btitle=&rft.title=Ecology&rft.issn=00129658&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lupinus lepidus; USA, Washington, Mount St. Helens; enzymatic activity ER - TY - JOUR T1 - Competition for resources between understory vegetation and overstory Pinus ponderosa in northeastern Oregon. AN - 16125704; 2678409 AB - The objective of this research was to determine which environmental resources, light, water, and/or nutrients, control understory plant production in a Pinus ponderosa forest in northeastern Oregon. A split-plot experimental design, with three 5.0-ha blocks, four treatments, and 44 plots, was established in the summer of 1985. Twenty plots (4 x 4 m) were trenched (root-reduction treatment) approximately equals 1 m in depth, and 24 non-trenched plots (root-control treatment) were used to assess the effects of root competition of overstory trees on understory plants. Trees were commercially thinned (canopy-reduction treatment) in half of each block (2.5 ha) during the winter and early spring of 1986, from a density of 345 to 148 trees/ha to increase light levels to the understory. Thinning significantly increased photosynthetically active radiation, decreased midday relative humidity, and increased midday air temperatures. JF - Ecological Applications AU - Riegel, G M AU - Miller, R F AU - Krueger, W C AD - USDA Forest Serv., Silvicult. Lab., 1027 N.W. Trenton Ave., Bend, OR 97701, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 71 EP - 85 VL - 2 IS - 1 SN - 1051-0761, 1051-0761 KW - competition KW - Ecology Abstracts KW - forests KW - Pinus ponderosa KW - understory KW - resource utilization KW - USA, Oregon KW - production KW - D 04125:Temperate forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16125704?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Applications&rft.atitle=Competition+for+resources+between+understory+vegetation+and+overstory+Pinus+ponderosa+in+northeastern+Oregon.&rft.au=Riegel%2C+G+M%3BMiller%2C+R+F%3BKrueger%2C+W+C&rft.aulast=Riegel&rft.aufirst=G&rft.date=1992-01-01&rft.volume=2&rft.issue=1&rft.spage=71&rft.isbn=&rft.btitle=&rft.title=Ecological+Applications&rft.issn=10510761&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinus ponderosa; USA, Oregon; production; resource utilization; understory; forests ER - TY - JOUR T1 - Influence of thermal ecology on the mycosis of a rangeland grasshopper. AN - 16123758; 2675403 AB - The clearwinged grasshopper, Camnula pellucida , exploits incident solar radiation to raise internal body temperatures above ambient levels. Under adequate temperature and light conditions, grasshopper body temperatures may exceed air temperatures by 10 degree -15 degree C with both nymphs and adults preferring to thermoregulate near 40 degree C, their optimal temperature for development. Comparison of age-specific phenology data collected from field sites with projections from computer simulation studies on grasshopper development indicated that incident solar radiation can highly accelerate maturation of grasshoppers. Also, prolonged exposure to temperatures above 35 degree C is beneficial to grasshoppers, as it is detrimental to the fungal pathogen Entomophaga grylli (US pathotype I), which is a major cause of natural mortality in many species. E. grylli protoplasts grew little or not at all if incubated at a constant 35 degree C in tissue culture medium. JF - Ecology AU - Carruthers, R I AU - Larkin, T S AU - Firstencel, H AU - Feng, Z AD - USDA-Agric. Res. Serv., Plant Prot. Res. Unit, Cornell Univ., Ithaca, NY 14853, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 190 EP - 204 VL - 73 IS - 1 SN - 0012-9658, 0012-9658 KW - body temperature KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Entomology Abstracts; Ecology Abstracts KW - Camnula pellucida KW - thermoregulation KW - mycosis KW - Orthoptera KW - solar radiation KW - Entomophaga grylli KW - D 04659:Insects KW - Z 05182:Pathology KW - K 03088:Fungi: animal UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16123758?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecology&rft.atitle=Influence+of+thermal+ecology+on+the+mycosis+of+a+rangeland+grasshopper.&rft.au=Carruthers%2C+R+I%3BLarkin%2C+T+S%3BFirstencel%2C+H%3BFeng%2C+Z&rft.aulast=Carruthers&rft.aufirst=R&rft.date=1992-01-01&rft.volume=73&rft.issue=1&rft.spage=190&rft.isbn=&rft.btitle=&rft.title=Ecology&rft.issn=00129658&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Camnula pellucida; Entomophaga grylli; Orthoptera; thermoregulation; solar radiation; mycosis ER - TY - JOUR T1 - Combinations of environmental factors and simulated sunlight affecting activity of inclusion bodies of the Heliothis (Lepidoptera: Noctuidae) nucleopolyhedrosis virus. AN - 16121523; 2675287 AB - When polyhedral inclusion bodies (PIB) of the singly embedded nucleopolyhedrosis virus of Heliothis, Baculovirus heliothis (HzSNPV), were exposed in water to simulated sunlight, there was about a 90% loss of its original viral activity, and the PIB were approximately equals 3 times more sensitive than dry PIB. The pH (at 3, 6, or 9) of the suspension had no significant effect on the extent of inactivation of PIB by simulated sunlight. Temperature of exposure (10, 22, 35, or 50 degree C) also had no effect on sensitivity of PIB exposed to simulated sunlight. Normally encountered field temperatures or pH, or both, coupled with exposure to sunlight, should not adversely affect the stability of PIB of HzSNPV. Presence of free water, however, can significantly increase the extent of PIB inactivation by sunlight. JF - Environmental Entomology AU - Ignoffo, C M AU - Garcia, C AD - Biol. Control Insects Res. Lab., USDA-ARS, Columbia, MO 65205, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 210 EP - 213 VL - 21 IS - 1 SN - 0046-225X, 0046-225X KW - Heliothis KW - Lepidoptera KW - Noctuidae KW - environmental factors KW - inclusion bodies KW - nuclear polyhedrosis virus KW - sunlight KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Virology & AIDS Abstracts; Entomology Abstracts KW - A 01014:Others KW - V 22160:Viral infections of invertebrates KW - W 30513:Pest control KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16121523?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Combinations+of+environmental+factors+and+simulated+sunlight+affecting+activity+of+inclusion+bodies+of+the+Heliothis+%28Lepidoptera%3A+Noctuidae%29+nucleopolyhedrosis+virus.&rft.au=Ignoffo%2C+C+M%3BGarcia%2C+C&rft.aulast=Ignoffo&rft.aufirst=C&rft.date=1992-01-01&rft.volume=21&rft.issue=1&rft.spage=210&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - nuclear polyhedrosis virus; Noctuidae; Lepidoptera; environmental factors; sunlight; inclusion bodies ER - TY - JOUR T1 - Interaction of ruminal bacteria in the production and utilization of maltooligosaccharides from starch. AN - 16103910; 2654958 AB - The degradation and utilization of starch by three amylolytic and one nonamylolytic species of ruminal bacteria were studied. Pure cultures of Streptococcus bovis JB1, Butyrivibrio fibrisolvens 49, and Bacteroides ruminicola D31d rapidly hydrolyzed starch and maltooligosaccharides accumulated. The major starch hydrolytic products detected in S. bovis cultures were glucose, maltose, maltotriose, and maltotetraose. In addition to these oligosaccharides, B. fibrisolvens cultures produced maltopentaose. The products of starch hydrolysis by B. ruminicola were even more complex, yielding glucose through maltotetraose, maltohexaose, and maltoheptaose but little maltopentaose. JF - Applied and Environmental Microbiology AU - Cotta, MA AD - Ferment. Biochem. Unit, Natl. Cent. Agric. Util. Res., USDA Agric. Res. Serv., 1815 N. University St., Peoria, IL 61604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 48 EP - 54 VL - 58 IS - 1 SN - 0099-2240, 0099-2240 KW - Streptococcus bovis KW - production KW - Bacteroides ruminicola KW - starch KW - oligosaccharides KW - Butyrivibrio fibrisolvens KW - hydrolysis KW - rumen microorganisms KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts B: Bacteriology KW - J 02730:Carbohydrates KW - W 30406:Carbohydrates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16103910?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Interaction+of+ruminal+bacteria+in+the+production+and+utilization+of+maltooligosaccharides+from+starch.&rft.au=Cotta%2C+MA&rft.aulast=Cotta&rft.aufirst=MA&rft.date=1992-01-01&rft.volume=58&rft.issue=1&rft.spage=48&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Butyrivibrio fibrisolvens; hydrolysis; rumen microorganisms ER - TY - CONF T1 - Antioxidants and growth regulators counter the effects of O sub(3) and SO sub(2) in crop plants. AN - 16103390; 2659894 AB - Antioxidant compounds such as ethylenediurea (EDU); N-(2-(2-oxo-l-imidazolidinyl) ethyl)-N'-phenylurea have been found to be effective in suppressing O sub(3)-induced leaf injury. Gibberellic acid (GA) inhibitors such as paclobutrazol, tetcyclaics and flurprimidol suppress visible SO sub(2)-induced injury. Antioxidant compounds are relatively ineffective in protecting plants from SO sub(2)-induced injury, while GA inhibitors are ineffective in protecting plants from O sub(3) injury. EDU and GA inhibitors do not alter the stomatal behavior, however they can induce resistance to air pollutants stress. Further-more EDU and paclobutrazol (PP sub(333)) do not alter foliar membrane lipid composition. EDU does not alter polyamine composition. This suggests that the mechanisms of plant tolerance to air pollutant exposure is probably biochemical rather than biophysical. Free radical scavenging enzymes or endogenous antioxidant compounds are more important than stomatal restriction of pollutant diffusion to the sensitive leaf mesophyll sites. JF - Agriculture, Ecosystems & Environment AU - Lee, E H AU - Kramer, G F AU - Rowland, R A AU - Agrawal, M Y1 - 1992 PY - 1992 DA - 1992 SP - 99 EP - 106 VL - 38 IS - 1-2 KW - ozone KW - sulphur dioxide KW - ethylenediurea KW - air pollutants KW - Risk Abstracts; Health & Safety Science Abstracts; Pollution Abstracts KW - plants KW - enzymes KW - crops KW - H SE3.20:AIR POLLUTION/AIR QUALITY KW - R2 23040:Biological KW - P 0000:AIR POLLUTION KW - P 5000:LAND POLLUTION KW - H SE2.20:CROP CONTAMINATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16103390?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Agriculture%2C+Ecosystems+%26+Environment&rft.atitle=Antioxidants+and+growth+regulators+counter+the+effects+of+O+sub%283%29+and+SO+sub%282%29+in+crop+plants.&rft.au=Lee%2C+E+H%3BKramer%2C+G+F%3BRowland%2C+R+A%3BAgrawal%2C+M&rft.aulast=Lee&rft.aufirst=E&rft.date=1992-01-01&rft.volume=38&rft.issue=1-2&rft.spage=99&rft.isbn=&rft.btitle=&rft.title=Agriculture%2C+Ecosystems+%26+Environment&rft.issn=01678809&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - CONF T1 - Zone effects on watermelon plants at the Ebro Delta (Spain): Symptomatology. AN - 16102837; 2659831 AB - Symptoms thought to be of ozone (O sub(3)) injury were first observed at the Migiorn farm on the Ebro Delta in 1976. Since then, O sub(3) symptoms have been observed every growing season, including 1990. In 1987 the first account of the suspected symptoms was published by Salleras. In order to confirm the cause of the symptoms and to determine the effects on crops, an experimental field with open-top chambers was established on the farm in 1988. There were three treatments: ambient air (AA), charcoal-filtered air (CF) and non-filtered plots (NF), with five replicates each. Visible injury was followed during the growing season and the symptoms were much less developed in the CF treatment than in AA or NF treatments. It was concluded from these observations, and data on ozone concentrations that the Spanish Mediterranean coast has a significant air pollution problem. JF - Agriculture, Ecosystems & Environment AU - Reinert, R AU - Sanchez, B AU - Salleras, J M AU - Bermejo, V AU - Ochoa, MJ AU - Tarruel, A Y1 - 1992 PY - 1992 DA - 1992 SP - 41 EP - 49 VL - 38 IS - 1-2 KW - ozone KW - Health & Safety Science Abstracts; Pollution Abstracts KW - Citrullus vulgaris KW - Spain KW - plants KW - air pollution KW - H SE3.20:AIR POLLUTION/AIR QUALITY KW - P 0000:AIR POLLUTION KW - P 5000:LAND POLLUTION KW - H SE2.20:CROP CONTAMINATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16102837?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Agriculture%2C+Ecosystems+%26+Environment&rft.atitle=Zone+effects+on+watermelon+plants+at+the+Ebro+Delta+%28Spain%29%3A+Symptomatology.&rft.au=Reinert%2C+R%3BSanchez%2C+B%3BSalleras%2C+J+M%3BBermejo%2C+V%3BOchoa%2C+MJ%3BTarruel%2C+A&rft.aulast=Reinert&rft.aufirst=R&rft.date=1992-01-01&rft.volume=38&rft.issue=1-2&rft.spage=41&rft.isbn=&rft.btitle=&rft.title=Agriculture%2C+Ecosystems+%26+Environment&rft.issn=01678809&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Immune system of channel catfish: An overture on immunity to Edwardsiella ictaluri AN - 15682056; 3969665 AB - Edwardsiella ictaluri is a gram negative rod that causes enteric septicemia of catfish (ESC). The E. ictaluri disease complex includes acute and chronic ESC. One of the most economically important diseases of channel catfish, Ictalurus punctatus, ESC is difficult to control. Although the bacterium is usually susceptible to antibiotics, resistant strains are emerging. Immunization is a more attractive approach to control. Vaccine efficacy is not well documented, in part due to a lack of basic information about immune system components and their interactions after E. ictaluri infection. Channel catfish vaccinated by immersion in E. ictaluri bacterin are only partly protected against ESC. Specific antibody responses are poor in the vaccinates. E. ictaluri infection causes both humoral and cell-mediated immune responses. A vaccine that stimulates both types of immunity may provide better ESC immunity. Diagnosis of E. ictaluri infection is accomplished by detection of specific antibody. Recently the discovery of an immunodominant E. ictaluri exoantigen is allowing the development of accurate and rapid diagnostic tests that can detect infection before clinical ESC occurs. Health management programs for food animals depend on serological tests to detect early infections and carriers; the value of these tests is now realized in the channel catfish industry. This review documents factors that influence the immune responses of channel catfish. These factors include the influence of water temperature, seasons, stressful conditions, diet, and E. ictaluri carrier status (DBO). JF - Annual Review of Fish Diseases AU - Klesius, P AD - Agricultural Research Service, USDA, Animal, Parasite Research Laboratory, Auburn, AL 36830, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 325 EP - 338 VL - 2 SN - 0959-8030, 0959-8030 KW - defense mechanisms KW - enteric septicemia KW - septicemia KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA Aquaculture Abstracts KW - fish diseases KW - Edwardsiella ictaluri KW - fish culture KW - freshwater aquaculture KW - immunity KW - Freshwater KW - bacterial diseases KW - Ictalurus punctatus KW - vaccination KW - Q3 08582:Fish culture KW - Q1 08582:Fish culture UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15682056?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annual+Review+of+Fish+Diseases&rft.atitle=Immune+system+of+channel+catfish%3A+An+overture+on+immunity+to+Edwardsiella+ictaluri&rft.au=Klesius%2C+P&rft.aulast=Klesius&rft.aufirst=P&rft.date=1992-01-01&rft.volume=2&rft.issue=&rft.spage=325&rft.isbn=&rft.btitle=&rft.title=Annual+Review+of+Fish+Diseases&rft.issn=09598030&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - fish diseases; fish culture; immunity; freshwater aquaculture; bacterial diseases; vaccination; Edwardsiella ictaluri; Ictalurus punctatus; Freshwater ER - TY - JOUR T1 - Responses of microbial populations in the rhizosphere to deposition of simulated acidic rain onto foliage and/or soil AN - 13710080; S199342818 AB - Simulated rain solutions were applied to seedlings of a sorghum X sudangrass hybrid in pots of non-sterile soil-sand mix on 16 d during a 6 week period. Solutions were adjusted with sulphuric and nitric acid to pH 4.9, 4.2, 3.5 or 2.8 and were applied as simulated rain to foliage and soil, foliage only or soil only. When applied to foliage alone, there was no effect on plant biomass or microbial population densities in the rhizosphere. However when the solution penetrated the soil, plant growth was stimulated and rhizosphere microbial populations increased 3- to 8-fold with increased solution acidity. There are 63 references. JF - Environmental Pollution AU - Shafer AD - USDA, North Carolina State University, Raleigh Y1 - 1992 PY - 1992 DA - 1992 SP - 267 EP - 278 VL - 76 IS - 3 SN - 0269-7491, 0269-7491 KW - Modelling (-general-) KW - Plants (see also aquatic macrophytes, grps below) KW - Aqualine Abstracts KW - AQ 00008:Effects of Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13710080?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Pollution&rft.atitle=Responses+of+microbial+populations+in+the+rhizosphere+to+deposition+of+simulated+acidic+rain+onto+foliage+and%2For+soil&rft.au=Shafer&rft.aulast=Shafer&rft.aufirst=&rft.date=1992-01-01&rft.volume=76&rft.issue=3&rft.spage=267&rft.isbn=&rft.btitle=&rft.title=Environmental+Pollution&rft.issn=02697491&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - SuppNotes - Publication focus: Experimental. N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Relationship between water quality, phytoplankton community and off-flavours in channel catfish (Ictalurus punctatus) production ponds AN - 13692802; S199446066 AB - Off-flavour in the flesh of channel catfish (Ictalurus punctatus) and in the pond water was studied under 2 recirculation regimens in 12 0.04 ha ponds stocked with 15,000 fingerling channel catfish per ha. Water was recirculated through a biological filter by centrifugal pumping for 24 h in 6 ponds and for 12 h in the other 6 ponds. In each pond, food quality, phytoplankton populations, and geosmin and 2-methylisoborneol (MIB) concentrations were evaluated weekly during the last 8 weeks of the growing season (mid-September to early November). Food quality was determined from average taste panel scorers for earthy-musty flavours. Objectionable off-flavour was detected by the trained panel in 13.5 per cent of the 96 sample units (ponds X weeds). Levels of geosmin and MIB in the water ranged from 0.000 to 0.097 ug per litre for geosmin (excepting 1 measurement of 0.649 ug per litre), and 0.039 to 0.356 ug per litre for MIB. Off-flavour scores and concentrations of geosmin and MIB in water did not significantly differ between the 2 pond recirculation treatments. Objectionable off-flavour scores (greater than 1.0) were significantly correlated (P less than 0.05) with the prior week's MIB values and degree of Oscillatoria domination. MIB levels and Oscillatoria dynamics leading to dominance conditions were indicative of off-flavour problems in subsequent weeks and may be used in a predictive manner. JF - Aquaculture AU - Lorio, W J AU - Perschbacher, P W AU - Johnsen, P B AD - USDA Agricultural Research Service, Tishomingo, Okla. Y1 - 1992 PY - 1992 DA - 1992 SP - 285 EP - 292 VL - 106 IS - 3/4 SN - 0044-8486, 0044-8486 KW - Equipment KW - Fish (see also individual groups listed below) KW - Flesh KW - Aqualine Abstracts KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13692802?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aquaculture&rft.atitle=Relationship+between+water+quality%2C+phytoplankton+community+and+off-flavours+in+channel+catfish+%28Ictalurus+punctatus%29+production+ponds&rft.au=Lorio%2C+W+J%3BPerschbacher%2C+P+W%3BJohnsen%2C+P+B&rft.aulast=Lorio&rft.aufirst=W&rft.date=1992-01-01&rft.volume=106&rft.issue=3%2F4&rft.spage=285&rft.isbn=&rft.btitle=&rft.title=Aquaculture&rft.issn=00448486&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - SuppNotes - Publication focus: Experimental. N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Effects of farnesol and the off-flavor derivative geosmin on Streptomyces tendae. AN - 72659234; 1785920 AB - Effects of the sesquiterpene farnesol (3,7,11-trimethyl-2,6,10-dodecatrien-1-ol) and the sesquiterpene derivative geosmin (1,10-trans-dimethyl-trans-9-decalol) were investigated in a geosmin-producing actinomycete, Streptomyces tendae. Exposure to 300 microM farnesol reduced biomass (fresh matter) accumulation by 97% compared with biomass accumulation by controls, whereas an equal amount of geosmin did not affect biomass accumulation. Increasing exposure to farnesol corresponded with reduced optical density of the culture, reduced levels of geosmin, and reduced metabolic heat production compared with controls, while exogenous geosmin did not affect these parameters. Geosmin dissipated from unioculated medium more rapidly than farnesol, indicating that in addition to the lower toxicity of geosmin, the actual exposure to geosmin over time may be less than exposure to an equal amount of farnesol. Cultures grown on Actinomyces-B medium contained 99.5% less geosmin and were more sensitive to farnesol than those grown on Hickey-Tresner medium, indicating that geosmin synthesis was associated with reduced sensitivity to farnesol. Consumption of farnesyl moieties during geosmin synthesis may reduce the potential for farnesol-induced inhibition of growth and metabolism. JF - Applied and environmental microbiology AU - Dionigi, C P AU - Millie, D F AU - Johnsen, P B AD - Southern Regional Research Center, Agricultural Research Service, New Orleans, Louisiana 70179. Y1 - 1991/12// PY - 1991 DA - December 1991 SP - 3429 EP - 3432 VL - 57 IS - 12 SN - 0099-2240, 0099-2240 KW - Naphthols KW - 0 KW - Farnesol KW - 4602-84-0 KW - geosmin KW - MYW912WXJ4 KW - Index Medicus KW - Hot Temperature KW - Kinetics KW - Streptomyces -- growth & development KW - Streptomyces -- metabolism KW - Farnesol -- pharmacology KW - Naphthols -- pharmacology KW - Streptomyces -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72659234?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+environmental+microbiology&rft.atitle=Effects+of+farnesol+and+the+off-flavor+derivative+geosmin+on+Streptomyces+tendae.&rft.au=Dionigi%2C+C+P%3BMillie%2C+D+F%3BJohnsen%2C+P+B&rft.aulast=Dionigi&rft.aufirst=C&rft.date=1991-12-01&rft.volume=57&rft.issue=12&rft.spage=3429&rft.isbn=&rft.btitle=&rft.title=Applied+and+environmental+microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-03-16 N1 - Date created - 1992-03-16 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Cited By: Appl Environ Microbiol. 1984 Apr;47(4):814-20 [16346520] Appl Environ Microbiol. 1982 Mar;43(3):708-14 [16345978] Lipids. 1988 Jun;23(6):534-8 [3050345] FEBS Lett. 1981 Mar 23;125(2):220-2 [7227551] J Chromatogr. 1987 Nov 13;409:337-42 [3693488] J Appl Bacteriol. 1990 Apr;68(4):405-10 [2351622] Methods Enzymol. 1985;110:153-5 [2991703] N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Immunocompetence and oxidant defense during ascorbate depletion of healthy men. AN - 72500635; 1962587 AB - To determine nonscorbutic effects of moderate vitamin C deficiency we measured immune function and oxidative damage in eight healthy men (25-43 y) who consumed 5-250 mg/d of ascorbic acid over 92 d on a metabolic unit. During ascorbic acid intakes of 5, 10, or 20 mg/d, subjects attained a state of moderate ascorbic acid deficiency as ascorbic acid concentrations in plasma, leucocytes, semen, and buccal cells dropped to less than 50% of baseline with no scorbutic symptoms observed. No changes in cell proliferation, erythrocyte antioxidant enzymes, and DNA strand breaks were observed; however, blood levels of glutathione and NAD(P) decreased during ascorbic acid deficiency, as did delayed hypersensitivity responsiveness. Concentrations of the oxidatively modified DNA base, 8-hydroxydeoxyguanosine in sperm DNA and fecapentaenes, ubiquitous fecal mutagens, were increased during ascorbic acid depletion. Moderate vitamin C deficiency, in the absence of scurvy, results in alteration of antioxidant chemistries and may permit increased oxidative damage. JF - The American journal of clinical nutrition AU - Jacob, R A AU - Kelley, D S AU - Pianalto, F S AU - Swendseid, M E AU - Henning, S M AU - Zhang, J Z AU - Ames, B N AU - Fraga, C G AU - Peters, J H AD - Western Human Nutrition Research Center, USDA Agricultural Research Service, Presidio of San Francisco, CA 94129. Y1 - 1991/12// PY - 1991 DA - December 1991 SP - 1302S EP - 1309S VL - 54 IS - 6 Suppl SN - 0002-9165, 0002-9165 KW - Oxidants KW - 0 KW - Polyenes KW - 1-(1-glycero)tetradeca-1,3,5,7,9-pentaene KW - 84000-58-8 KW - 1-(1-glycero)dodeca-1,3,5,7,9-pentaene KW - 84000-59-9 KW - Ascorbic Acid KW - PQ6CK8PD0R KW - Abridged Index Medicus KW - Index Medicus KW - Humans KW - Polyenes -- analysis KW - Adult KW - Ascorbic Acid -- metabolism KW - Male KW - Ascorbic Acid Deficiency -- metabolism KW - Immunocompetence KW - Ascorbic Acid Deficiency -- immunology KW - Ascorbic Acid Deficiency -- physiopathology KW - Oxidants -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72500635?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+American+journal+of+clinical+nutrition&rft.atitle=Immunocompetence+and+oxidant+defense+during+ascorbate+depletion+of+healthy+men.&rft.au=Jacob%2C+R+A%3BKelley%2C+D+S%3BPianalto%2C+F+S%3BSwendseid%2C+M+E%3BHenning%2C+S+M%3BZhang%2C+J+Z%3BAmes%2C+B+N%3BFraga%2C+C+G%3BPeters%2C+J+H&rft.aulast=Jacob&rft.aufirst=R&rft.date=1991-12-01&rft.volume=54&rft.issue=6+Suppl&rft.spage=1302S&rft.isbn=&rft.btitle=&rft.title=The+American+journal+of+clinical+nutrition&rft.issn=00029165&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-01-06 N1 - Date created - 1992-01-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Applying batch-determined retention properties to predict sulfate transport through soil columns AN - 50489238; 1992-015051 JF - Soil Science AU - Schnabel, R R AU - Potter, R M AU - Richie, E B Y1 - 1991/12// PY - 1991 DA - December 1991 SP - 440 EP - 447 PB - Williams & Wilkins Company, Baltimore, MD VL - 152 IS - 6 SN - 0038-075X, 0038-075X KW - soils KW - sulfate ion KW - adsorption KW - geochemistry KW - pH KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50489238?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science&rft.atitle=Applying+batch-determined+retention+properties+to+predict+sulfate+transport+through+soil+columns&rft.au=Schnabel%2C+R+R%3BPotter%2C+R+M%3BRichie%2C+E+B&rft.aulast=Schnabel&rft.aufirst=R&rft.date=1991-12-01&rft.volume=152&rft.issue=6&rft.spage=440&rft.isbn=&rft.btitle=&rft.title=Soil+Science&rft.issn=0038075X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1992-01-01 N1 - Number of references - 28 N1 - PubXState - MD N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SOSCAK N1 - SubjectsTermNotLitGenreText - adsorption; geochemistry; pH; soils; sulfate ion ER - TY - JOUR T1 - Effects of freezing on colloidal halloysite; implications for temperate soils AN - 50479775; 1992-008083 AB - The freezing of colloidal suspensions, extracted from N Idaho loess soils, results in the formation of silt- and sand-sized, stable, polycrystalline agglomerates that resist dispersion with agitation. XRD and TEM analyses showed that colloids are dominantly halloysite of 0.10-0.30 mu m diameter. The colloidal halloysite has anomalously high mole ratios of Si/Al and a high Fe content. Freeze-produced agglomerates are light yellow to yellowish-brown, occur in the form of plates, wedges, cuspates, or laths, and often exhibit uniform optical properties, suggesting a crystalline product. Selected area electron diffraction, however, indicates that the agglomerates are polycrystalline. With proper orientation, agglomerates produce acute bisectrix interference figures that are optically negative with variable 2V, generally < 30 degrees C. XRD analyses and IR spectra imply that the agglomerates are halloysite. Measured optical properties, however, are different from those reported for halloysite and may be affected by the high Fe content and polycrystalline nature of the agglomerates. Grains, exhibiting similar optical properties to laboratory-produced agglomerates, are a minor proportion of the very-fine sand fraction in some horizons of the soils studied. Freeze-aided agglomeration of colloidal material may be an important process in temperate climates. It may be overlooked because of particle destruction by soil pretreatment or morphological order and/or optical similarity to some micaceous minerals. JF - Clays and Clay Minerals AU - Blank, Robert R AU - Fosberg, Maynard A Y1 - 1991/12// PY - 1991 DA - December 1991 SP - 642 EP - 650 PB - Clay Minerals Society, Clarkson, NY VL - 39 IS - 6 SN - 0009-8604, 0009-8604 KW - United States KW - soils KW - silicates KW - North America KW - Idaho KW - fragipans KW - X-ray diffraction data KW - clay mineralogy KW - U. S. Rocky Mountains KW - freezing KW - TEM data KW - Bitterroot Range KW - clay minerals KW - mineral composition KW - Clearwater River KW - areal studies KW - composition KW - sheet silicates KW - halloysite KW - Rocky Mountains KW - minerals KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50479775?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Clays+and+Clay+Minerals&rft.atitle=Effects+of+freezing+on+colloidal+halloysite%3B+implications+for+temperate+soils&rft.au=Blank%2C+Robert+R%3BFosberg%2C+Maynard+A&rft.aulast=Blank&rft.aufirst=Robert&rft.date=1991-12-01&rft.volume=39&rft.issue=6&rft.spage=642&rft.isbn=&rft.btitle=&rft.title=Clays+and+Clay+Minerals&rft.issn=00098604&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1992-01-01 N1 - Number of references - 28 N1 - PubXState - NY N1 - Document feature - 4 tables, charts N1 - Last updated - 2012-06-07 N1 - CODEN - CLCMAB N1 - SubjectsTermNotLitGenreText - areal studies; Bitterroot Range; clay mineralogy; clay minerals; Clearwater River; composition; fragipans; freezing; halloysite; Idaho; mineral composition; minerals; North America; Rocky Mountains; sheet silicates; silicates; soils; TEM data; U. S. Rocky Mountains; United States; X-ray diffraction data ER - TY - JOUR T1 - Tensile strength of thirty-three saturated repacked soils AN - 50463231; 1992-026846 JF - Soil Science Society of America Journal AU - Nearing, M A AU - Parker, S C AU - Bradford, J M AU - Elliot, W J Y1 - 1991/12// PY - 1991 DA - December 1991 SP - 1546 EP - 1551 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 6 SN - 0361-5995, 0361-5995 KW - soils KW - soil mechanics KW - saturated zone KW - materials, properties KW - statistical analysis KW - tensile strength KW - properties KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50463231?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Tensile+strength+of+thirty-three+saturated+repacked+soils&rft.au=Nearing%2C+M+A%3BParker%2C+S+C%3BBradford%2C+J+M%3BElliot%2C+W+J&rft.aulast=Nearing&rft.aufirst=M&rft.date=1991-12-01&rft.volume=55&rft.issue=6&rft.spage=1546&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1992-01-01 N1 - Number of references - 23 N1 - PubXState - WI N1 - Document feature - illus. incl. 7 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - materials, properties; properties; saturated zone; soil mechanics; soils; statistical analysis; tensile strength ER - TY - JOUR T1 - System for collecting undisturbed cores from surface soils for micromorphological analysis AN - 50461189; 1992-026862 JF - Soil Science Society of America Journal AU - Rhoton, F E AU - McChesney, D S Y1 - 1991/12// PY - 1991 DA - December 1991 SP - 1796 EP - 1797 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 6 SN - 0361-5995, 0361-5995 KW - soils KW - morphology KW - sampling KW - micromorphology KW - techniques KW - instruments KW - cores KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50461189?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=System+for+collecting+undisturbed+cores+from+surface+soils+for+micromorphological+analysis&rft.au=Rhoton%2C+F+E%3BMcChesney%2C+D+S&rft.aulast=Rhoton&rft.aufirst=F&rft.date=1991-12-01&rft.volume=55&rft.issue=6&rft.spage=1796&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1992-01-01 N1 - Number of references - 7 N1 - PubXState - WI N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - cores; instruments; micromorphology; morphology; sampling; soils; techniques ER - TY - JOUR T1 - Infiltration patterns from simulated rainfall on a semiarid rangeland soil AN - 50461131; 1992-026857 JF - Soil Science Society of America Journal AU - Seyfried, Mark S Y1 - 1991/12// PY - 1991 DA - December 1991 SP - 1726 EP - 1734 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 6 SN - 0361-5995, 0361-5995 KW - United States KW - soils KW - Nancy's Gulch KW - Idaho KW - terrestrial environment KW - semi-arid environment KW - atmospheric precipitation KW - water balance KW - southern Idaho KW - infiltration KW - movement KW - water regimes KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50461131?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Infiltration+patterns+from+simulated+rainfall+on+a+semiarid+rangeland+soil&rft.au=Seyfried%2C+Mark+S&rft.aulast=Seyfried&rft.aufirst=Mark&rft.date=1991-12-01&rft.volume=55&rft.issue=6&rft.spage=1726&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1992-01-01 N1 - Number of references - 43 N1 - PubXState - WI N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - atmospheric precipitation; Idaho; infiltration; movement; Nancy's Gulch; semi-arid environment; soils; southern Idaho; terrestrial environment; United States; water balance; water regimes ER - TY - JOUR T1 - Evaluation of the WEPP hillslope profile hydrology component on a semi-arid rangeland watershed AN - 50081971; 1996-012030 JF - International Winter Meeting - American Society of Agricultural Engineers AU - van der Zweep, R A AU - Stone, J J AU - Anonymous Y1 - 1991/12// PY - 1991 DA - December 1991 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991, Winter KW - United States KW - soils KW - hydrology KW - terrestrial environment KW - erosion KW - semi-arid environment KW - data processing KW - watersheds KW - southeastern Arizona KW - prediction KW - simulation KW - models KW - computer programs KW - Water Erosion Prediction Project KW - Walnut Gulch watershed KW - runoff KW - Arizona KW - hydraulic conductivity KW - soil erosion KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50081971?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Evaluation+of+the+WEPP+hillslope+profile+hydrology+component+on+a+semi-arid+rangeland+watershed&rft.au=van+der+Zweep%2C+R+A%3BStone%2C+J+J%3BAnonymous&rft.aulast=van+der+Zweep&rft.aufirst=R&rft.date=1991-12-01&rft.volume=1991%2C+Winter&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 18 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Paper No. 91-2552 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - Arizona; computer programs; data processing; erosion; hydraulic conductivity; hydrology; models; prediction; runoff; semi-arid environment; simulation; soil erosion; soils; southeastern Arizona; terrestrial environment; United States; Walnut Gulch watershed; Water Erosion Prediction Project; watersheds ER - TY - JOUR T1 - Validation of WEPP 91.5 with watershed data AN - 50081732; 1996-012019 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Kramer, Larry A AU - Hjelmfelt, Allen T, Jr AU - Anonymous Y1 - 1991/12// PY - 1991 DA - December 1991 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991, Winter KW - soils KW - hydrology KW - erosion KW - rills KW - data processing KW - watersheds KW - prediction KW - erosion features KW - simulation KW - models KW - computer programs KW - Water Erosion Prediction Project KW - runoff KW - sediments KW - basin management KW - soil erosion KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50081732?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Validation+of+WEPP+91.5+with+watershed+data&rft.au=Kramer%2C+Larry+A%3BHjelmfelt%2C+Allen+T%2C+Jr%3BAnonymous&rft.aulast=Kramer&rft.aufirst=Larry&rft.date=1991-12-01&rft.volume=1991%2C+Winter&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 8 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - illus. incl. 5 tables N1 - SuppNotes - Paper No. 91-2511 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - basin management; computer programs; data processing; erosion; erosion features; hydrology; models; prediction; rills; runoff; sediments; simulation; soil erosion; soils; Water Erosion Prediction Project; watersheds ER - TY - JOUR T1 - Revising EP400.1 for constructing irrigation wells AN - 50081312; 1996-012034 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Kranz, William AU - Hay, DeLynn R AU - Hardy, Leland AU - Anonymous Y1 - 1991/12// PY - 1991 DA - December 1991 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991, Winter KW - wells KW - regulations KW - pumping KW - government agencies KW - water management KW - U. S. Environmental Protection Agency KW - rates KW - preventive measures KW - irrigation KW - ground water KW - aquifers KW - boreholes KW - multiple aquifers KW - policy KW - discharge KW - water wells KW - water resources KW - construction KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50081312?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Revising+EP400.1+for+constructing+irrigation+wells&rft.au=Kranz%2C+William%3BHay%2C+DeLynn+R%3BHardy%2C+Leland%3BAnonymous&rft.aulast=Kranz&rft.aufirst=William&rft.date=1991-12-01&rft.volume=1991%2C+Winter&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - 1 table N1 - SuppNotes - Paper No. 91-2564 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - aquifers; boreholes; construction; discharge; government agencies; ground water; irrigation; land use; multiple aquifers; policy; preventive measures; pumping; rates; regulations; U. S. Environmental Protection Agency; water management; water resources; water wells; wells ER - TY - JOUR T1 - Shallow ground water and surface runoff instrumentation for small watersheds AN - 50081257; 1996-012024 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Cullum, R F AU - Schreiber, J D AU - Smith, S, Jr AU - Grissinger, E H AU - Anonymous Y1 - 1991/12// PY - 1991 DA - December 1991 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991, Winter KW - United States KW - hydrology KW - water quality KW - concentration KW - experimental studies KW - monitoring KW - pollutants KW - Mississippi KW - watersheds KW - unsaturated zone KW - pollution KW - irrigation KW - ground water KW - aquifers KW - pressuremeters KW - detection KW - infiltration KW - runoff KW - shallow aquifers KW - tillage KW - nitrate ion KW - discharge KW - instruments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50081257?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Shallow+ground+water+and+surface+runoff+instrumentation+for+small+watersheds&rft.au=Cullum%2C+R+F%3BSchreiber%2C+J+D%3BSmith%2C+S%2C+Jr%3BGrissinger%2C+E+H%3BAnonymous&rft.aulast=Cullum&rft.aufirst=R&rft.date=1991-12-01&rft.volume=1991%2C+Winter&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 15 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - illus. N1 - SuppNotes - Paper No. 91-2541 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - aquifers; concentration; detection; discharge; experimental studies; ground water; hydrology; infiltration; instruments; irrigation; Mississippi; monitoring; nitrate ion; pollutants; pollution; pressuremeters; runoff; shallow aquifers; tillage; United States; unsaturated zone; water quality; watersheds ER - TY - JOUR T1 - Assessment of error in the Universal Soil Loss Equation using natural runoff plot data AN - 50079982; 1996-012033 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Risse, L M AU - Nearing, M A AU - Laflen, J M AU - Anonymous Y1 - 1991/12// PY - 1991 DA - December 1991 EP - unpaginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991, Winter KW - soils KW - hydrology KW - erosion KW - Universal Soil Loss Equation KW - watersheds KW - prediction KW - mathematical models KW - erosion features KW - preferential flow KW - simulation KW - models KW - interactive techniques KW - errors KW - transport KW - infiltration KW - runoff KW - sediments KW - soil erosion KW - erodibility KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50079982?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Assessment+of+error+in+the+Universal+Soil+Loss+Equation+using+natural+runoff+plot+data&rft.au=Risse%2C+L+M%3BNearing%2C+M+A%3BLaflen%2C+J+M%3BAnonymous&rft.aulast=Risse&rft.aufirst=L&rft.date=1991-12-01&rft.volume=1991%2C+Winter&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 20 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - illus. incl. 5 tables N1 - SuppNotes - Paper No. 91-2558 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - erodibility; erosion; erosion features; errors; hydrology; infiltration; interactive techniques; mathematical models; models; prediction; preferential flow; runoff; sediments; simulation; soil erosion; soils; transport; Universal Soil Loss Equation; watersheds ER - TY - JOUR T1 - WEPP validation using rainfall simulator data AN - 50079952; 1996-012031 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Flanagan, Dennis C AU - Ferris, J E AU - Livingston, S J AU - Anonymous Y1 - 1991/12// PY - 1991 DA - December 1991 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991, Winter KW - erosion KW - rills KW - Universal Soil Loss Equation KW - data processing KW - watersheds KW - erosion features KW - preferential flow KW - simulation KW - interactive techniques KW - transport KW - sediments KW - soil erosion KW - soils KW - hydrology KW - rainfall KW - agriculture KW - prediction KW - models KW - computer programs KW - Water Erosion Prediction Project KW - infiltration KW - runoff KW - hydraulic conductivity KW - land use KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50079952?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=WEPP+validation+using+rainfall+simulator+data&rft.au=Flanagan%2C+Dennis+C%3BFerris%2C+J+E%3BLivingston%2C+S+J%3BAnonymous&rft.aulast=Flanagan&rft.aufirst=Dennis&rft.date=1991-12-01&rft.volume=1991%2C+Winter&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 25 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Paper 91-2556 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - agriculture; computer programs; data processing; erosion; erosion features; hydraulic conductivity; hydrology; infiltration; interactive techniques; land use; models; prediction; preferential flow; rainfall; rills; runoff; sediments; simulation; soil erosion; soils; transport; Universal Soil Loss Equation; Water Erosion Prediction Project; watersheds ER - TY - JOUR T1 - Newaukum River stream bank erosion control demonstration project AN - 50079101; 1996-012041 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Renner, Dean M AU - Meuer, Julian L AU - Bates, Ken AU - Anonymous Y1 - 1991/12// PY - 1991 DA - December 1991 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991, Winter KW - United States KW - soils KW - embankments KW - Lewis County Washington KW - experimental studies KW - Washington KW - monitoring KW - erosion KW - Newaukum River KW - erosion features KW - vegetation KW - rivers KW - preventive measures KW - erosion control KW - fluvial features KW - waterways KW - soil erosion KW - construction KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50079101?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Newaukum+River+stream+bank+erosion+control+demonstration+project&rft.au=Renner%2C+Dean+M%3BMeuer%2C+Julian+L%3BBates%2C+Ken%3BAnonymous&rft.aulast=Renner&rft.aufirst=Dean&rft.date=1991-12-01&rft.volume=1991%2C+Winter&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - illus. N1 - SuppNotes - Paper No. 91-2581 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - construction; embankments; erosion; erosion control; erosion features; experimental studies; fluvial features; Lewis County Washington; monitoring; Newaukum River; preventive measures; rivers; soil erosion; soils; United States; vegetation; Washington; waterways ER - TY - JOUR T1 - Applying case-based reasoning techniques to the WEPP soil erosion model AN - 50077088; 1996-012048 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Myer, Charles R AU - Flanagan, Dennis C AU - Anonymous Y1 - 1991/12// PY - 1991 DA - December 1991 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991, Winter KW - soils KW - erosion KW - Universal Soil Loss Equation KW - data processing KW - prediction KW - decision-making KW - calibration KW - erosion features KW - simulation KW - models KW - computer programs KW - Water Erosion Prediction Project KW - artificial intelligence KW - soil erosion KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50077088?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Applying+case-based+reasoning+techniques+to+the+WEPP+soil+erosion+model&rft.au=Myer%2C+Charles+R%3BFlanagan%2C+Dennis+C%3BAnonymous&rft.aulast=Myer&rft.aufirst=Charles&rft.date=1991-12-01&rft.volume=1991%2C+Winter&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 12 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - illus. N1 - SuppNotes - Paper No. 91-2625 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - artificial intelligence; calibration; computer programs; data processing; decision-making; erosion; erosion features; models; prediction; simulation; soil erosion; soils; Universal Soil Loss Equation; Water Erosion Prediction Project ER - TY - JOUR T1 - Green-Ampt and the curve number AN - 50077042; 1996-012046 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Van Mullem, Joseph A AU - Anonymous Y1 - 1991/12// PY - 1991 DA - December 1991 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991, Winter KW - soils KW - hydrology KW - rainfall KW - Green-Ampt model KW - watersheds KW - capillarity KW - ground water KW - models KW - recharge KW - physical properties KW - infiltration KW - runoff KW - hydraulic conductivity KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50077042?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Green-Ampt+and+the+curve+number&rft.au=Van+Mullem%2C+Joseph+A%3BAnonymous&rft.aulast=Van+Mullem&rft.aufirst=Joseph&rft.date=1991-12-01&rft.volume=1991%2C+Winter&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 12 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Paper No. 91-2610 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - capillarity; Green-Ampt model; ground water; hydraulic conductivity; hydrology; infiltration; models; physical properties; rainfall; recharge; runoff; soils; watersheds ER - TY - JOUR T1 - Ground-water response in a mountainous watershed; testing of a conceptual model AN - 50076956; 1996-012025 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Flerchinger, G N AU - Deng, Y AU - Cooley, K R AU - Anonymous Y1 - 1991/12// PY - 1991 DA - December 1991 EP - unpaginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991, Winter KW - United States KW - watersheds KW - atmospheric precipitation KW - ground water KW - Reynolds Creek KW - mountains KW - hydrologic cycle KW - southwestern Idaho KW - snow KW - relief effects KW - climate effects KW - discharge KW - hydrology KW - Idaho KW - numerical models KW - confined aquifers KW - Owyhee Mountains KW - aquifers KW - models KW - recharge KW - pressuremeters KW - detection KW - shallow aquifers KW - meltwater KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50076956?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Ground-water+response+in+a+mountainous+watershed%3B+testing+of+a+conceptual+model&rft.au=Flerchinger%2C+G+N%3BDeng%2C+Y%3BCooley%2C+K+R%3BAnonymous&rft.aulast=Flerchinger&rft.aufirst=G&rft.date=1991-12-01&rft.volume=1991%2C+Winter&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 11 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - illus. incl. 2 tables, sketch map N1 - SuppNotes - Paper No. 91-2542 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - aquifers; atmospheric precipitation; climate effects; confined aquifers; detection; discharge; ground water; hydrologic cycle; hydrology; Idaho; meltwater; models; mountains; numerical models; Owyhee Mountains; pressuremeters; recharge; relief effects; Reynolds Creek; shallow aquifers; snow; southwestern Idaho; United States; watersheds ER - TY - JOUR T1 - Restoration of a riparian wetland for agricultural water quality improvement AN - 50076732; 1996-012018 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Vellidis, George AU - Smith, Matt C AU - Lowrance, Richard AU - Hubbard, Robert K AU - Anonymous Y1 - 1991/12// PY - 1991 DA - December 1991 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991, Winter KW - United States KW - water quality KW - agricultural waste KW - reclamation KW - ecosystems KW - nonpoint sources KW - remediation KW - ground water KW - nitrate ion KW - discharge KW - Atlantic Coastal Plain KW - protection KW - hydrology KW - forests KW - experimental studies KW - pollutants KW - pollution KW - phosphorus KW - bioremediation KW - preventive measures KW - aquifers KW - nutrients KW - wetlands KW - infiltration KW - runoff KW - shallow aquifers KW - Georgia KW - waste disposal KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50076732?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Restoration+of+a+riparian+wetland+for+agricultural+water+quality+improvement&rft.au=Vellidis%2C+George%3BSmith%2C+Matt+C%3BLowrance%2C+Richard%3BHubbard%2C+Robert+K%3BAnonymous&rft.aulast=Vellidis&rft.aufirst=George&rft.date=1991-12-01&rft.volume=1991%2C+Winter&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 16 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - sketch maps N1 - SuppNotes - Paper No. 91-2507 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - agricultural waste; aquifers; Atlantic Coastal Plain; bioremediation; discharge; ecosystems; experimental studies; forests; Georgia; ground water; hydrology; infiltration; land use; nitrate ion; nonpoint sources; nutrients; phosphorus; pollutants; pollution; preventive measures; protection; reclamation; remediation; runoff; shallow aquifers; United States; waste disposal; water quality; wetlands ER - TY - JOUR T1 - Use of SCS Scheduler on high water table soils AN - 50076492; 1996-012053 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Admire, K E AU - Anonymous Y1 - 1991/12// PY - 1991 DA - December 1991 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991, Winter KW - wells KW - water use KW - United States KW - soils KW - Mississippi Delta KW - data processing KW - pollution KW - optimization KW - observation wells KW - irrigation KW - ground water KW - aquifers KW - computer programs KW - water table KW - interactive techniques KW - shallow aquifers KW - Louisiana KW - water resources KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50076492?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Use+of+SCS+Scheduler+on+high+water+table+soils&rft.au=Admire%2C+K+E%3BAnonymous&rft.aulast=Admire&rft.aufirst=K&rft.date=1991-12-01&rft.volume=1991%2C+Winter&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 2 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Paper No. 91-2636 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - aquifers; computer programs; data processing; ground water; interactive techniques; irrigation; Louisiana; Mississippi Delta; observation wells; optimization; pollution; shallow aquifers; soils; United States; water resources; water table; water use; wells ER - TY - JOUR T1 - Validation of the WEPP model with rill erosion plot data AN - 50075975; 1996-012032 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Elliot, William J AU - Elliot, Annette V AU - Wu, Qiong AU - Laflen, J M AU - Anonymous Y1 - 1991/12// PY - 1991 DA - December 1991 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991, Winter KW - erosion KW - rills KW - Universal Soil Loss Equation KW - data processing KW - watersheds KW - erosion features KW - preferential flow KW - simulation KW - interactive techniques KW - transport KW - sediments KW - soil erosion KW - soils KW - hydrology KW - rainfall KW - agriculture KW - prediction KW - mathematical models KW - models KW - computer programs KW - Water Erosion Prediction Project KW - infiltration KW - runoff KW - hydraulic conductivity KW - land use KW - soil management KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50075975?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Validation+of+the+WEPP+model+with+rill+erosion+plot+data&rft.au=Elliot%2C+William+J%3BElliot%2C+Annette+V%3BWu%2C+Qiong%3BLaflen%2C+J+M%3BAnonymous&rft.aulast=Elliot&rft.aufirst=William&rft.date=1991-12-01&rft.volume=1991%2C+Winter&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 21 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Paper No. 91-2557 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - agriculture; computer programs; data processing; erosion; erosion features; hydraulic conductivity; hydrology; infiltration; interactive techniques; land use; mathematical models; models; prediction; preferential flow; rainfall; rills; runoff; sediments; simulation; soil erosion; soil management; soils; transport; Universal Soil Loss Equation; Water Erosion Prediction Project; watersheds ER - TY - JOUR T1 - Inhibition of some mycotoxigenic fungi by iturin A, a peptidolipid produced by Bacillus subtilis. AN - 72643116; 1780001 AB - Bacillus subtilis produces peptidolipid compounds of the iturin group that have been shown to have antifungal properties, but not all fungal species are sensitive to these compounds. In this study, the activity of iturin A, produced by B. subtilis strain B-3, was tested. Paper disks impregnated with various concentrations of iturin A were placed on agar plates seeded with conidia of toxigenic species of Fusarium, Gerlacia, Penicillium or Aspergillus. Most isolates were inhibited at iturin A concentrations as low as 4 micrograms/disk. Penicillium italicum, P. viridicatum, A. ochraceus and A. versicolor were most strongly inhibited by the iturin whereas P. citrinum and A. parasiticus were least sensitive to iturin A. JF - Mycopathologia AU - Klich, M A AU - Lax, A R AU - Bland, J M AD - US Department of Agriculture, Southern Regional Research Center, New Orleans, LA 70179-0687. Y1 - 1991/11// PY - 1991 DA - November 1991 SP - 77 EP - 80 VL - 116 IS - 2 SN - 0301-486X, 0301-486X KW - Anti-Bacterial Agents KW - 0 KW - Antifungal Agents KW - Mycotoxins KW - Peptides KW - Peptides, Cyclic KW - iturin A KW - 52229-90-0 KW - Index Medicus KW - Aspergillus -- drug effects KW - Fusarium -- metabolism KW - Fusarium -- drug effects KW - Peptides, Cyclic -- biosynthesis KW - Penicillium -- metabolism KW - Biological Assay KW - Penicillium -- drug effects KW - Chromatography, Thin Layer KW - Aspergillus -- metabolism KW - Peptides, Cyclic -- pharmacology KW - Chromatography, High Pressure Liquid KW - Antifungal Agents -- biosynthesis KW - Fungi -- metabolism KW - Antifungal Agents -- pharmacology KW - Mycotoxins -- biosynthesis KW - Fungi -- drug effects KW - Bacillus subtilis -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72643116?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mycopathologia&rft.atitle=Inhibition+of+some+mycotoxigenic+fungi+by+iturin+A%2C+a+peptidolipid+produced+by+Bacillus+subtilis.&rft.au=Klich%2C+M+A%3BLax%2C+A+R%3BBland%2C+J+M&rft.aulast=Klich&rft.aufirst=M&rft.date=1991-11-01&rft.volume=116&rft.issue=2&rft.spage=77&rft.isbn=&rft.btitle=&rft.title=Mycopathologia&rft.issn=0301486X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-03-12 N1 - Date created - 1992-03-12 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Supercritical fluid extraction/enzyme assay: a novel technique to screen for pesticide residues in meat products. AN - 72570518; 1757408 AB - The novel combination of supercritical fluid extraction (SFE) with an enzyme assay system has been used to screen meat products to detect the presence of pesticides. Analytes are collected in water by expanding supercritical carbon dioxide to atmospheric pressure through a restrictor and into an aqueous phase. The solution is then tested for the presence of pesticide residues by enzyme assay. Two experimental approaches have been used. Alachlor-fortified lard and bovine liver were monitored by static SFE coupled with an enzyme immunoassay. SFE of carbofuran-fortified frankfurters was coupled with an enzyme assay based on cholinesterase inhibition. A major benefit of the SFE/enzyme assay technique over conventional screening techniques is that the analyst is not exposed to organic solvents. JF - Journal - Association of Official Analytical Chemists AU - France, J E AU - King, J W AD - U.S. Department of Agriculture, National Center for Agricultural Utilization Research, Peoria, IL 61604. PY - 1991 SP - 1013 EP - 1016 VL - 74 IS - 6 SN - 0004-5756, 0004-5756 KW - Acetamides KW - 0 KW - Cholinesterase Inhibitors KW - Dietary Fats KW - Pesticide Residues KW - Carbon Dioxide KW - 142M471B3J KW - alachlor KW - 24S2S61PXL KW - lard KW - SI6O3IW77Z KW - Carbofuran KW - SKF77S6Y67 KW - Index Medicus KW - Carbofuran -- analysis KW - Animals KW - Dietary Fats -- analysis KW - Cattle KW - Acetamides -- analysis KW - Atmospheric Pressure KW - Liver -- chemistry KW - Pesticide Residues -- analysis KW - Immunoenzyme Techniques -- instrumentation KW - Meat Products -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72570518?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+-+Association+of+Official+Analytical+Chemists&rft.atitle=Supercritical+fluid+extraction%2Fenzyme+assay%3A+a+novel+technique+to+screen+for+pesticide+residues+in+meat+products.&rft.au=France%2C+J+E%3BKing%2C+J+W&rft.aulast=France&rft.aufirst=J&rft.date=1991-11-01&rft.volume=74&rft.issue=6&rft.spage=1013&rft.isbn=&rft.btitle=&rft.title=Journal+-+Association+of+Official+Analytical+Chemists&rft.issn=00045756&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-02-06 N1 - Date created - 1992-02-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - An analytical survey of aflatoxins in tissues from swine grown in regions reporting 1988 aflatoxin-contaminated corn. AN - 72568823; 1757410 AB - A joint project was undertaken by the Food Safety and Inspection Service (FSIS) and the Agriculture Research Service branches of the U.S. Department of Agriculture to determine the presence of aflatoxins in the U.S. meat supply during a drought year. In 1988, high incidences of aflatoxins occurred in corn grown in regions of the Midwest, Southeast, and South. Six states were identified as having serious aflatoxin contamination in their corn crop: Virginia, North and South Carolina, Texas, Iowa, and Illinois. Swine liver and pillars of diaphragm (muscle) tissues were sampled by federal FSIS Inspectors in plants located in these states. A worstcase sampling plan was conducted. Samples were taken in January 1989 from hogs fed corn soon after harvest and in April 1989 from hogs fed corn originally stored and then fed in the spring. A modification of the official AOAC method for the thin-layer chromatography (TLC) determination of aflatoxins in animal tissue was used to permit quantitation by LC with fluorescence detection. The official AOAC TLC confirmation of identity method was used to confirm all positive samples with B1 concentrations greater than 0.04 ppb and M1 concentrations greater than 0.1 ppb. Sixty samples in the January group and 100 samples in the April group were assayed. Concentrations of aflatoxins B1 and M1 in the first group of pig livers ranged from 0.04 to 0.06 ppb. The identity of aflatoxin B1 was confirmed in all positive samples. Aflatoxin M1 could not be confirmed in any of the positive liver samples because the method was insufficiently sensitive for this aflatoxin.(ABSTRACT TRUNCATED AT 250 WORDS) JF - Journal - Association of Official Analytical Chemists AU - Stubblefield, R D AU - Honstead, J P AU - Shotwell, O L AD - U.S. Department of Agriculture, National Center for Agricultural Utilization Research, Peoria, IL 61604. PY - 1991 SP - 897 EP - 899 VL - 74 IS - 6 SN - 0004-5756, 0004-5756 KW - Aflatoxins KW - 0 KW - Aflatoxin M1 KW - 6795-23-9 KW - Aflatoxin B1 KW - 9N2N2Y55MH KW - Index Medicus KW - Swine KW - Animals KW - Muscles -- chemistry KW - Liver -- chemistry KW - Aflatoxin M1 -- analysis KW - Aflatoxin B1 -- analysis KW - Aflatoxins -- analysis KW - Zea mays KW - Food Contamination KW - Meat -- analysis KW - Animal Feed -- standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72568823?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+-+Association+of+Official+Analytical+Chemists&rft.atitle=An+analytical+survey+of+aflatoxins+in+tissues+from+swine+grown+in+regions+reporting+1988+aflatoxin-contaminated+corn.&rft.au=Stubblefield%2C+R+D%3BHonstead%2C+J+P%3BShotwell%2C+O+L&rft.aulast=Stubblefield&rft.aufirst=R&rft.date=1991-11-01&rft.volume=74&rft.issue=6&rft.spage=897&rft.isbn=&rft.btitle=&rft.title=Journal+-+Association+of+Official+Analytical+Chemists&rft.issn=00045756&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-02-06 N1 - Date created - 1992-02-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Methods for inoculation and recovery of Salmonella from chicken eggs. AN - 72562190; 1754543 AB - Various methods of applying inoculum and recovering low numbers of artificially inoculated Salmonella typhimurium on eggs were evaluated. Inoculation methods tested were suspending cells in 1) .85% saline; 2) 1% peptone; 3) sterile chicken fecal paste; or 4) a 1:10 dilution of chicken feces in .85% saline. Sampling methods tested were 1) shell and membrane massage; and 2) mortar and pestle grinding of shells and membranes. The method that yielded the best recovery of low numbers of Salmonella was as follows: 1) apply cell suspension in 1% peptone to egg; 2) sample egg by a hand crush and massage of shell and membranes in 50 mL of buffered peptone; 3) incubate shell and membranes in buffered peptone overnight and then plate onto selective agar. Methods that did not improve sensitivity of recovery included varying the inoculum drying time, addition of FeSO4 or Cleland's reagent to the recovery medium, and varying the temperature of the inoculum to affect penetration. JF - Poultry science AU - Berrang, M E AU - Cox, N A AU - Bailey, J S AU - Blankenship, L C AD - USDA, Agricultural Research Service, Russell Research Center, Athens, Georgia 30613. Y1 - 1991/11// PY - 1991 DA - November 1991 SP - 2267 EP - 2270 VL - 70 IS - 11 SN - 0032-5791, 0032-5791 KW - Index Medicus KW - Animals KW - Egg Shell -- microbiology KW - Food Microbiology KW - Eggs -- microbiology KW - Chickens -- microbiology KW - Salmonella typhimurium -- isolation & purification KW - Salmonella typhimurium -- growth & development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72562190?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Poultry+science&rft.atitle=Methods+for+inoculation+and+recovery+of+Salmonella+from+chicken+eggs.&rft.au=Berrang%2C+M+E%3BCox%2C+N+A%3BBailey%2C+J+S%3BBlankenship%2C+L+C&rft.aulast=Berrang&rft.aufirst=M&rft.date=1991-11-01&rft.volume=70&rft.issue=11&rft.spage=2267&rft.isbn=&rft.btitle=&rft.title=Poultry+science&rft.issn=00325791&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-01-29 N1 - Date created - 1992-01-29 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Effects of random mutagenesis upon potato spindle tuber viroid replication and symptom expression. AN - 72161027; 1926773 AB - A combination of random chemical mutagenesis plus temperature gradient gel electrophoresis was used to isolate a collection of 57 potato spindle tuber viroid (PSTV) cDNAs containing mutations distributed throughout the entire 359 nucleotide genome. Although the presence of multiple mutations was often associated with a loss of cDNA infectivity, infectious PSTV cDNAs containing as many as four unlinked alterations could be isolated. Several mutations in the pathogenicity domain and left terminal loop were stably maintained in the resulting progeny, but those which affect base pairing in secondary hairpins I and II were either lethal or rapidly reverted to wild-type. One stable C----U substitution which may promote significant structural rearrangement within the right side of the pathogenicity domain had no detectable effect upon symptom expression. The variable domains of several noninfectious mutants contained an A----G substitution which is likely to inhibit the in vitro formation of secondary hairpin II via stabilization of the native structure, and the lethal nature of this mutation was confirmed by oligonucleotide-directed mutagenesis. Several lines of evidence now point toward an essential role for secondary hairpin II in the replication of PSTV and related viroids. JF - Virology AU - Owens, R A AU - Thompson, S M AU - Steger, G AD - Microbiology and Plant Pathology Laboratory, Plant Sciences Institute-USDA-ARS Beltsville, Maryland 20705. Y1 - 1991/11// PY - 1991 DA - November 1991 SP - 18 EP - 31 VL - 185 IS - 1 SN - 0042-6822, 0042-6822 KW - DNA, Viral KW - 0 KW - Oligodeoxyribonucleotides KW - Index Medicus KW - Nucleic Acid Denaturation KW - Base Sequence KW - Virulence -- genetics KW - Solanum tuberosum KW - Genetic Vectors KW - Molecular Sequence Data KW - Escherichia coli -- genetics KW - Plasmids KW - Nucleic Acid Conformation KW - DNA, Viral -- genetics KW - Cloning, Molecular KW - Virus Replication KW - Mutagenesis, Site-Directed KW - Viroids -- pathogenicity KW - Viroids -- physiology KW - Plant Viruses -- genetics KW - Genome, Viral KW - Plant Viruses -- physiology KW - Plant Viruses -- pathogenicity KW - Viroids -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72161027?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Virology&rft.atitle=Effects+of+random+mutagenesis+upon+potato+spindle+tuber+viroid+replication+and+symptom+expression.&rft.au=Owens%2C+R+A%3BThompson%2C+S+M%3BSteger%2C+G&rft.aulast=Owens&rft.aufirst=R&rft.date=1991-11-01&rft.volume=185&rft.issue=1&rft.spage=18&rft.isbn=&rft.btitle=&rft.title=Virology&rft.issn=00426822&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-11-21 N1 - Date created - 1991-11-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Depth-of-erosion assessment using Fe-Mn nodule concentrations in surface horizons AN - 50486295; 1992-009974 JF - Soil Science AU - Rhoton, F E AU - Meyer, L D AU - McChesney, D S Y1 - 1991/11// PY - 1991 DA - November 1991 SP - 389 EP - 394 PB - Williams & Wilkins Company, Baltimore, MD VL - 152 IS - 5 SN - 0038-075X, 0038-075X KW - United States KW - soils KW - processes KW - secondary structures KW - Alamo, Tennessee KW - erosion KW - Mississippi KW - water erosion KW - Holly Springs, Mississippi KW - ferromanganese composition KW - concretions KW - Tennessee KW - soil erosion KW - sedimentary structures KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50486295?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science&rft.atitle=Depth-of-erosion+assessment+using+Fe-Mn+nodule+concentrations+in+surface+horizons&rft.au=Rhoton%2C+F+E%3BMeyer%2C+L+D%3BMcChesney%2C+D+S&rft.aulast=Rhoton&rft.aufirst=F&rft.date=1991-11-01&rft.volume=152&rft.issue=5&rft.spage=389&rft.isbn=&rft.btitle=&rft.title=Soil+Science&rft.issn=0038075X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1992-01-01 N1 - Number of references - 14 N1 - PubXState - MD N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SOSCAK N1 - SubjectsTermNotLitGenreText - Alamo, Tennessee; concretions; erosion; ferromanganese composition; Holly Springs, Mississippi; Mississippi; processes; secondary structures; sedimentary structures; soil erosion; soils; Tennessee; United States; water erosion ER - TY - JOUR T1 - Analysis of corn and cultured corn for fumonisin B1 by HPLC and GC/MS by four laboratories. AN - 72579979; 1760472 JF - Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc AU - Plattner, R D AU - Ross, P F AU - Reagor, J AU - Stedelin, J AU - Rice, L G AD - US Department of Agriculture, National Center for Agricultural Utilization Research, Peoria, IL 61604. Y1 - 1991/10// PY - 1991 DA - October 1991 SP - 357 EP - 358 VL - 3 IS - 4 SN - 1040-6387, 1040-6387 KW - Fumonisins KW - 0 KW - Mycotoxins KW - fumonisin B1 KW - 3ZZM97XZ32 KW - Index Medicus KW - Swine KW - Animals KW - Fusarium -- isolation & purification KW - Gas Chromatography-Mass Spectrometry KW - Horses KW - Chromatography, High Pressure Liquid KW - Zea mays -- microbiology KW - Food Microbiology KW - Zea mays -- chemistry KW - Animal Feed -- analysis KW - Mycotoxins -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72579979?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+veterinary+diagnostic+investigation+%3A+official+publication+of+the+American+Association+of+Veterinary+Laboratory+Diagnosticians%2C+Inc&rft.atitle=Analysis+of+corn+and+cultured+corn+for+fumonisin+B1+by+HPLC+and+GC%2FMS+by+four+laboratories.&rft.au=Plattner%2C+R+D%3BRoss%2C+P+F%3BReagor%2C+J%3BStedelin%2C+J%3BRice%2C+L+G&rft.aulast=Plattner&rft.aufirst=R&rft.date=1991-10-01&rft.volume=3&rft.issue=4&rft.spage=357&rft.isbn=&rft.btitle=&rft.title=Journal+of+veterinary+diagnostic+investigation+%3A+official+publication+of+the+American+Association+of+Veterinary+Laboratory+Diagnosticians%2C+Inc&rft.issn=10406387&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-02-12 N1 - Date created - 1992-02-12 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Effect of chronic ethanol feeding on hepatic and extrahepatic distribution of vitamin E in rats. AN - 72566345; 1755507 AB - The effect of chronic ethanol feeding on the status of alpha- and gamma-tocopherol in plasma, liver, lung, and testes of Sprague-Dawley rats was characterized. Rats were pair-fed liquid diets containing 36% of total calories either as ethanol or isocaloric carbohydrates. After 3 weeks, ethanol ingestion resulted in a significant (p less than or equal to 0.05) increase in liver weight and induced fatty liver without affecting total body weight. Ethanol feeding did not affect the plasma concentration of alpha-tocopherol but doubled that of gamma-tocopherol. When expressed per milligram of tissue, liver alpha-tocopherol did not vary with ethanol ingestion, whereas gamma-tocopherol concentration increased 2.5 times that of control animals. However, the concentration of alpha-tocopherol expressed per milligram of total lipids was significantly (p less than or equal to 0.01) decreased in the liver with ethanol feeding. In contrast to the liver, ethanol feeding significantly increased alpha- and gamma-tocopherol levels per milligram of total lipids in the testes. The concentration of gamma-tocopherol (but not alpha-tocopherol) per milligram of lung tissue and per total lung was significantly (p less than or equal to 0.05) increased with ethanol feeding. These data indicate that chronic ethanol ingestion significantly alters the distribution of alpha-tocopherol and gamma-tocopherol in hepatic and extrahepatic tissues of the rat. JF - Alcoholism, clinical and experimental research AU - Meydani, M AU - Seitz, H K AU - Blumberg, J B AU - Russell, R M AD - USDA Human Nutrition Research Center on Aging, Tufts University, Boston, Massachusetts 02111. Y1 - 1991/10// PY - 1991 DA - October 1991 SP - 771 EP - 774 VL - 15 IS - 5 SN - 0145-6008, 0145-6008 KW - Vitamin E KW - 1406-18-4 KW - Index Medicus KW - Rats, Inbred Strains KW - Rats KW - Animals KW - Organ Size -- physiology KW - Testis -- pathology KW - Body Weight -- physiology KW - Tissue Distribution KW - Lung -- pathology KW - Male KW - Liver -- pathology KW - Alcoholism -- pathology KW - Vitamin E -- blood UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72566345?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Alcoholism%2C+clinical+and+experimental+research&rft.atitle=Effect+of+chronic+ethanol+feeding+on+hepatic+and+extrahepatic+distribution+of+vitamin+E+in+rats.&rft.au=Meydani%2C+M%3BSeitz%2C+H+K%3BBlumberg%2C+J+B%3BRussell%2C+R+M&rft.aulast=Meydani&rft.aufirst=M&rft.date=1991-10-01&rft.volume=15&rft.issue=5&rft.spage=771&rft.isbn=&rft.btitle=&rft.title=Alcoholism%2C+clinical+and+experimental+research&rft.issn=01456008&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-01-28 N1 - Date created - 1992-01-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Aflatoxin production via cross-feeding of pathway intermediates during cofermentation of aflatoxin pathway-blocked Aspergillus parasiticus mutants. AN - 72539620; 1746952 AB - Cofermentation of Aspergillus parasiticus strains (SRRC 163 and SRRC 2043) blocked at different steps in the aflatoxin B1 (AFB1) biosynthetic pathway in a synthetic liquid medium or on seeds (cottonseed, corn kernels, and peanuts) resulted in production of AFB1. Strain SRRC 2043 accumulated O-methylsterigmatocystin (OMST), a late precursor in AFB1 biosynthesis, whereas SRRC 163 accumulated averantin, an early precursor in the pathway. Strain SRRC 2043 secreted large amounts of OMST in culture relative to the amounts of several other pathway intermediates secreted into media (by other AFB1 pathway-blocked strains). AFB1 production occurred even when colonies of SRRC 163 and SRRC 2043 strains (producing no detectable AFB1) were grown together on an agar medium while physically separated from each other by a filter membrane (0.22-micron pore size). In addition, when mycelia of strain SRRC 163 were added to culture filtrates (containing no mycelia but containing secreted OMST) of strain SRRC 2043, AFB1 production occurred. The results suggested a chemical (rather than genetic) mechanism of complementation for AFB1 production between AFB1 pathway-blocked strains, since no mycelial contact was required between these strains for AFB1 production. The mechanism for chemical complementation involves secretion of OMST by SRRC 2043 and subsequent absorption and conversion of OMST to AFB1 by mycelia of strain SRRC 163. JF - Applied and environmental microbiology AU - Cleveland, T E AU - Bhatnagar, D AU - Brown, R L AD - Southern Regional Research Center, U.S. Department of Agriculture, New Orleans, Louisiana 70124. Y1 - 1991/10// PY - 1991 DA - October 1991 SP - 2907 EP - 2911 VL - 57 IS - 10 SN - 0099-2240, 0099-2240 KW - Culture Media KW - 0 KW - Aflatoxin B1 KW - 9N2N2Y55MH KW - Index Medicus KW - Genetic Complementation Test KW - Aspergillus -- genetics KW - Aflatoxin B1 -- metabolism KW - Fermentation KW - Aflatoxin B1 -- biosynthesis KW - Aspergillus -- metabolism KW - Mutation KW - Aspergillus -- growth & development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72539620?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+environmental+microbiology&rft.atitle=Aflatoxin+production+via+cross-feeding+of+pathway+intermediates+during+cofermentation+of+aflatoxin+pathway-blocked+Aspergillus+parasiticus+mutants.&rft.au=Cleveland%2C+T+E%3BBhatnagar%2C+D%3BBrown%2C+R+L&rft.aulast=Cleveland&rft.aufirst=T&rft.date=1991-10-01&rft.volume=57&rft.issue=10&rft.spage=2907&rft.isbn=&rft.btitle=&rft.title=Applied+and+environmental+microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-01-13 N1 - Date created - 1992-01-13 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Cited By: Mycopathologia. 1990 Jul;111(1):39-45 [2233978] Appl Environ Microbiol. 1991 May;57(5):1340-5 [1854196] Microbiol Rev. 1988 Jun;52(2):274-95 [3137428] Appl Environ Microbiol. 1987 Jul;53(7):1711-3 [3116930] Appl Environ Microbiol. 1987 Jan;53(1):14-6 [3103529] Appl Environ Microbiol. 1987 May;53(5):1028-33 [3111363] Mycopathologia. 1989 Sep;107(2-3):75-83 [2515439] Prep Biochem. 1988;18(3):321-49 [3237648] Appl Environ Microbiol. 1987 Dec;53(12):2804-7 [3435144] Biochem Biophys Res Commun. 1990 Jan 15;166(1):38-42 [2405850] Adv Appl Microbiol. 1983;29:53-92 [6650265] J Gen Microbiol. 1979 Jul;113(1):127-36 [501330] Appl Environ Microbiol. 1976 May;31(5):743-5 [5954] J Agric Food Chem. 1975 Nov-Dec;23(6):1132-4 [1194578] J Am Oil Chem Soc. 1971 Feb;48(2):93-4 [5546372] Biochim Biophys Acta. 1964 May 11;86:418-20 [14171025] Can J Microbiol. 1987 Dec;33(12):1108-12 [3128394] N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Immediate and delayed molecular response of human keratinocytes to solar-simulated irradiation. AN - 72146486; 1656141 AB - The clinical and histologic events in human skin after a single ultraviolet exposure are well documented; and both in vitro and in vivo studies have established immunologic and mutagenic effects of ultraviolet rays on cells. However, little is known about the ultraviolet damage/repair response at the level of gene induction. This study examines the genetic response in cultured human keratinocytes exposed to a single solar-simulated ultraviolet dose and harvested at 1, 4, 8, 24, and 48 hours postirradiation for northern blot analysis using c-DNA probes to well studied stress related genes, heat shock protein 70 and ubiquitin; to a recently cloned gene associated with growth arrest and DNA damage (gadd 153); to c-myc and c-fos, two proto-oncogenes known to be associated with cell growth and differentiation; and to glyceraldehyde phosphate dehydrogenase, known to be involved in cellular intermediary metabolism, gadd 153 and c-fos mRNA levels are increased early (1-4 hours) in keratinocytes, at a time when the cells appear indistinguishable from nonirradiated controls. At the same early time points, the c-myc mRNA level is decreased. Heat shock protein 70 and ubiquitin transcripts are detectable under basal conditions but are not increased by ultraviolet exposure; although at later time points (24-48 hours), when there is morphologic evidence of cell damage and downregulation of the otherwise constitutively expressed gene glyceraldehyde phosphate dehydrogenase, their unchanged steady state levels of mRNA constitute relative over expression. Irradiation of cells with the same solar-simulated ultraviolet dose filtered to remove the shortest and most damaging wavelengths results in a similar pattern of early gene induction, even though cell growth and survival are unaffected. These data suggest that two classes of genes participate in the response to ultraviolet rays: early genes whose mRNA levels are increased (gadd 153, c-fos) or decreased (c-myc) before or independent of any morphologic evidence of cell damage and late genes that are relatively increased (heat shock protein 70, ubiquitin) or decreased (glyceraldehyde phosphate dehydrogenase) in expression when morphologic cell damage is present. The early events may be a direct response to ultraviolet irradiation, whereas the late events may represent a secondary response to stress. JF - Laboratory investigation; a journal of technical methods and pathology AU - Garmyn, M AU - Yaar, M AU - Holbrook, N AU - Gilchrest, B A AD - United States Department of Agriculture Human Nutrition Research Center on Aging, Tufts University, Boston, Massachusetts. Y1 - 1991/10// PY - 1991 DA - October 1991 SP - 471 EP - 478 VL - 65 IS - 4 SN - 0023-6837, 0023-6837 KW - gadd 153 KW - DNA Probes KW - 0 KW - Heat-Shock Proteins KW - Proto-Oncogene Proteins c-fos KW - Proto-Oncogene Proteins c-myc KW - RNA, Messenger KW - Ubiquitins KW - Glyceraldehyde-3-Phosphate Dehydrogenases KW - EC 1.2.1.- KW - Index Medicus KW - Blotting, Northern KW - Humans KW - Ubiquitins -- analysis KW - Heat-Shock Proteins -- analysis KW - Base Sequence KW - Cells, Cultured KW - Glyceraldehyde-3-Phosphate Dehydrogenases -- analysis KW - Proto-Oncogene Proteins c-fos -- analysis KW - Molecular Sequence Data KW - Cell Survival -- radiation effects KW - Proto-Oncogene Proteins c-myc -- analysis KW - Time Factors KW - Keratinocytes -- radiation effects KW - Ultraviolet Rays KW - Keratinocytes -- chemistry KW - RNA, Messenger -- radiation effects KW - Keratinocytes -- cytology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72146486?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Laboratory+investigation%3B+a+journal+of+technical+methods+and+pathology&rft.atitle=Immediate+and+delayed+molecular+response+of+human+keratinocytes+to+solar-simulated+irradiation.&rft.au=Garmyn%2C+M%3BYaar%2C+M%3BHolbrook%2C+N%3BGilchrest%2C+B+A&rft.aulast=Garmyn&rft.aufirst=M&rft.date=1991-10-01&rft.volume=65&rft.issue=4&rft.spage=471&rft.isbn=&rft.btitle=&rft.title=Laboratory+investigation%3B+a+journal+of+technical+methods+and+pathology&rft.issn=00236837&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-11-07 N1 - Date created - 1991-11-07 N1 - Date revised - 2017-01-13 N1 - Gene symbol - gadd 153 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - The Myth of the Coming Labor Shortage AN - 61280236; 92Z0103 AB - The assertion that the US faces a coming labor shortage, propagated by officials in both the Ronald Reagan & George Bush administrations, holds that rapid growth of high-skilled professional & technical occupations is increasing the demand for workers of higher skill, resulting in a mismatch between available jobs & available workers. This view, it is argued, is incorrect, because it overstates the anticipated growth of professional & technical jobs. It is maintained that a substantial upgrading of skills & wages cannot be achieved only by improving the skills of the most disadvantaged & relying on market forces to do the rest; rather, the skills of the work force as a whole, both new entrants & those already at work, must be upgraded. 2 References. W. Howard JF - The American Prospect AU - Mishel, Lawrence AU - Teixeira, Ruy A AD - c/o Teixeira -- Economic Research Service Dept Agriculture, 14th St & Independence Ave SW Washington DC 20250-0001 Y1 - 1991/10// PY - 1991 DA - October 1991 SP - 98 EP - 103 IS - 7 SN - 1049-7285, 1049-7285 KW - labor shortage myth, US, skills issues KW - Myths KW - Labor Policy KW - Work Skills KW - Forces And Relations of Production KW - Labor Force KW - United States of America KW - Labor Supply KW - article KW - 0686: complex organization; modes of production, employment patterns, social division of labor UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/61280236?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Asocabs&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+American+Prospect&rft.atitle=The+Myth+of+the+Coming+Labor+Shortage&rft.au=Mishel%2C+Lawrence%3BTeixeira%2C+Ruy+A&rft.aulast=Mishel&rft.aufirst=Lawrence&rft.date=1991-10-01&rft.volume=&rft.issue=7&rft.spage=98&rft.isbn=&rft.btitle=&rft.title=The+American+Prospect&rft.issn=10497285&rft_id=info:doi/ LA - English DB - Sociological Abstracts N1 - Date revised - 2007-04-01 N1 - Last updated - 2016-09-28 N1 - CODEN - APROEY N1 - SubjectsTermNotLitGenreText - United States of America; Work Skills; Labor Supply; Labor Policy; Labor Force; Forces And Relations of Production; Myths ER - TY - JOUR T1 - Chemistry of smetitic and illitic phases in interstratified soil smectite AN - 50477219; 1992-016724 JF - Soil Science Society of America Journal AU - Laird, D A AU - Barak, P AU - Nater, E A AU - Dowdy, R H Y1 - 1991/10// PY - 1991 DA - October 1991 SP - 1499 EP - 1504 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 5 SN - 0361-5995, 0361-5995 KW - United States KW - soils KW - silicates KW - clay KW - Minnesota KW - X-ray diffraction data KW - clastic sediments KW - clay mineralogy KW - smectite KW - illite KW - clay minerals KW - areal studies KW - southern Minnesota KW - sediments KW - sheet silicates KW - geochemistry KW - Mollisols KW - 02C:Geochemistry of rocks, soils, and sediments KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50477219?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Chemistry+of+smetitic+and+illitic+phases+in+interstratified+soil+smectite&rft.au=Laird%2C+D+A%3BBarak%2C+P%3BNater%2C+E+A%3BDowdy%2C+R+H&rft.aulast=Laird&rft.aufirst=D&rft.date=1991-10-01&rft.volume=55&rft.issue=5&rft.spage=1499&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1992-01-01 N1 - Number of references - 20 N1 - PubXState - WI N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - areal studies; clastic sediments; clay; clay mineralogy; clay minerals; geochemistry; illite; Minnesota; Mollisols; sediments; sheet silicates; silicates; smectite; soils; southern Minnesota; United States; X-ray diffraction data ER - TY - JOUR T1 - Hydrologic Impacts of Oak Harvesting and Evaluation of the Modified Universal Soil Loss Equation AN - 19137107; 9206165 AB - Two Sierra foothill watersheds were monitored to learn what effects selective oak removal would have on watershed hydrology and water quality. The data were also used to generate sediment rating curves and evaluate the modified universal soil loss equation (MUSLE). Annual sediment rating curves better accounted for the variability in precipitation events from year to year, which may be at least as important as total rainfall, on the amount of runoff and sediment yield. Measurements before and after oak removal indicated small but not statistically significant increases in the runoff/rainfall ratio and fewer tons of sediment leaving the watershed after cutting. The MUSLE predicted quite accurately when calibrated for these watersheds. (See also W92-06163) (Author's abstract) JF - In: Proceedings of the Symposium on Oak Woodlands and Hardwood Rangeland Management, October 31-November 2, 1990, Davis, CA. USDA Forest Service General Technical Report PSW-126, March 1991. p 221-224, 4 tab, 13 ref. AU - Epifanio, C R AU - Singer, MJ AU - Huang, X AD - USDA, Soil Conservation Service, Willows, CA Y1 - 1991/10// PY - 1991 DA - Oct 1991 KW - Water Resources Abstracts KW - *Forestry KW - *Oak trees KW - *Soil erosion KW - *Soil water KW - *Universal soil loss equation KW - Forest watersheds KW - Precipitation KW - Rainfall-runoff relationships KW - Sediment yield KW - SW 2060:Effects on water of human nonwater activities KW - SW 0860:Water and plants KW - SW 0870:Erosion and sedimentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19137107?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Hydrologic+Impacts+of+Oak+Harvesting+and+Evaluation+of+the+Modified+Universal+Soil+Loss+Equation&rft.au=Epifanio%2C+C+R%3BSinger%2C+MJ%3BHuang%2C+X&rft.aulast=Epifanio&rft.aufirst=C&rft.date=1991-10-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Exposing Loblolly Pine Seedlings to Acid Precipitation and Ozone: Effects on Soil Rhizosphere Chemistry AN - 19136768; 9204074 AB - Rhizosphere and non-rhizosphere soils were sampled in association with the roots of field-grown, 1-year-old loblolly pine (Pinus taeda L.) that had been exposed to simulated acid precipitation and ozone treatments. Soil samples adjacent to roots and from the bulk soil were analyzed separately for H(+), Al(3+), Ca(2+), and Mg(2+) concentrations. For the acid precipitation treatment, H(+) levels were significantly greater in the rhizosphere compared with the bulk soil, but no clear trend could be attributed to acidic precipitation levels. Hydrogen ion concentrations associated with the ozone levels, at times, differed significantly by treatment, but not between rhizosphere and bulk soil. Rain pH and ozone level produced no statistically significant distinction between rhizosphere and non-rhizosphere soil for Al(3+), Ca(2+), or Mg(2+). However, after combining rhizosphere and non-rhizosphere soil samples, Al(3+) concentrations were found to generally increase as rain pH decreased, whereas Ca(2+) and Mg(2+) followed the opposite pattern. No such pattern for ozone level was apparent. Significant interactions between acid precipitation and ozone treatments were not detected. (Author's abstract) JF - Journal of Environmental Quality JEVQAA, Vol. 20, No. 4, p 828-832, October/December 1991. 1 fig, 4 tab, 20 ref. AU - Ruark, G A AU - Thornton, F C AU - Tiarks, A E AU - Lockaby, B G AU - Chappelka, AH AD - USDA-FS, 3041 Cornwallis Road, P.O. Box 12254, Research Triangle Park, NC 27709 Y1 - 1991/10// PY - 1991 DA - Oct 1991 KW - Water Resources Abstracts KW - *Acid rain KW - *Acid rain effects KW - *Air pollution effects KW - *Ozone KW - *Rhizosphere KW - *Trees KW - Acidity KW - Aluminum KW - Calcium KW - Cations KW - Hydrogen ion concentration KW - Magnesium KW - Pine trees KW - Root zone KW - Soil chemistry KW - Water pollution effects KW - SW 3030:Effects of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19136768?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Exposing+Loblolly+Pine+Seedlings+to+Acid+Precipitation+and+Ozone%3A+Effects+on+Soil+Rhizosphere+Chemistry&rft.au=Ruark%2C+G+A%3BThornton%2C+F+C%3BTiarks%2C+A+E%3BLockaby%2C+B+G%3BChappelka%2C+AH&rft.aulast=Ruark&rft.aufirst=G&rft.date=1991-10-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Effects of U.S. Affirmative Action Programs on Women's Employment AN - 1761713158; 199202488 AB - The impact of equal employment opportunity (EEO) & affirmative action programs implemented in 1965 on the employment of females (Fs) vs males (Ms) in the US is examined using time-series data covering 1947-1988. Results show that Fs ages 20-54 benefited through greater employment stability during 1965-1980, but lost some gains during 1981-1988 during the Reagan administration; Ms in the same age group experienced the opposite effect. Findings also reveal that EEO & affirmative action programs increased the share of projected employment among Fs ages 20-64, while decreasing the share of projected employment of Ms in comparable age groups. 2 Tables, 34 References. Adapted from the source document. JF - Journal of Policy Modeling AU - Uri, Noel D AU - Mixon, J Wilson, Jr AD - Economic Research Service US Dept Agriculture, Washington DC 20005 Y1 - 1991/10// PY - 1991 DA - October 1991 SP - 367 EP - 382 VL - 13 IS - 3 SN - 0161-8938, 0161-8938 KW - female vs male employment, US KW - equal employment opportunity/affirmative action programs KW - 1947-1988 time-series data KW - Sexual Inequality KW - Working Women KW - Employment Opportunities KW - Affirmative Action KW - United States of America KW - Social Programs KW - article KW - 7210: social policy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1761713158?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Asocialservices&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Policy+Modeling&rft.atitle=Effects+of+U.S.+Affirmative+Action+Programs+on+Women%27s+Employment&rft.au=Uri%2C+Noel+D%3BMixon%2C+J+Wilson%2C+Jr&rft.aulast=Uri&rft.aufirst=Noel&rft.date=1991-10-01&rft.volume=13&rft.issue=3&rft.spage=367&rft.isbn=&rft.btitle=&rft.title=Journal+of+Policy+Modeling&rft.issn=01618938&rft_id=info:doi/ LA - English DB - Social Services Abstracts N1 - Date revised - 2016-02-01 N1 - Last updated - 2016-09-28 N1 - SubjectsTermNotLitGenreText - United States of America; Working Women; Affirmative Action; Employment Opportunities; Sexual Inequality; Social Programs ER - TY - JOUR T1 - A zein signal sequence functions as a signal-anchor when fused to maize alcohol dehydrogenase. AN - 72109800; 1716987 AB - A chimeric gene, preZad, was constructed encoding a zein signal sequence fused precisely to the amino terminus of maize alcohol dehydrogenase 1. Translocation and processing of this chimeric preZad protein were assayed in vitro using a rabbit reticulocyte lysate translation system supplemented with canine pancreatic microsomes. PreZad was cotranslationally translocated across the vesicular membranes. Unexpectedly, the signal sequence was not removed although a suitable cleavage site was preserved and presented within the vesicle lumen. Failure to cleave the signal sequence was apparently not due to the lack of a beta-turn near the processing site. When a beta-turn was introduced near the cleavage site through site-directed mutagenesis, no processing was observed. PreZad was not solubilized by alkaline treatment of the microsomes, indicating an integral membrane association. Resistance to proteolysis, in the absence of detergent, indicates that preZad is associated with the membranes in a type II orientation (C-terminus in and N-terminus outside the vesicles). Analysis of truncated versions of preZad showed that it is the uncleaved signal sequence that functions as a signal-anchor. Changing the ratio of net charge flanking the signal sequence to less than 1 (N-terminal:C-terminal) did not alter the type II membrane orientation, as would have been predicted by the 'positive-in rule'. Our results provide additional insight into the role of the passenger protein and signal sequence-flanking regions in recognition of a signal peptidase processing site, and the orientation of insertion of a signal-anchor sequence into the endoplasmic reticulum membrane. JF - Biochimica et biophysica acta AU - Shatters, R G AU - Miernyk, J A AD - Seed Biosynthesis Research Unit, USDA, Agriculture Research Service, National Center for Agricultural Utilization Research, Peoria, IL. Y1 - 1991/09/30/ PY - 1991 DA - 1991 Sep 30 SP - 179 EP - 188 VL - 1068 IS - 2 SN - 0006-3002, 0006-3002 KW - preZad KW - Protein Precursors KW - 0 KW - Protein Sorting Signals KW - RNA KW - 63231-63-0 KW - Zein KW - 9010-66-6 KW - Alcohol Dehydrogenase KW - EC 1.1.1.1 KW - Index Medicus KW - Mutagenesis, Site-Directed KW - Protein Biosynthesis KW - Base Sequence KW - Chimera KW - Zea mays -- chemistry KW - Molecular Sequence Data KW - Transcription, Genetic KW - Amino Acid Sequence KW - Plasmids KW - Translocation, Genetic KW - RNA -- biosynthesis KW - Protein Conformation KW - Binding Sites KW - Protein Sorting Signals -- genetics KW - Zein -- genetics KW - Alcohol Dehydrogenase -- genetics KW - Protein Precursors -- genetics KW - Protein Sorting Signals -- physiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72109800?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochimica+et+biophysica+acta&rft.atitle=A+zein+signal+sequence+functions+as+a+signal-anchor+when+fused+to+maize+alcohol+dehydrogenase.&rft.au=Shatters%2C+R+G%3BMiernyk%2C+J+A&rft.aulast=Shatters&rft.aufirst=R&rft.date=1991-09-30&rft.volume=1068&rft.issue=2&rft.spage=179&rft.isbn=&rft.btitle=&rft.title=Biochimica+et+biophysica+acta&rft.issn=00063002&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-11-20 N1 - Date created - 1991-11-20 N1 - Date revised - 2017-01-13 N1 - Gene symbol - preZad N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Simple noninvasive method to test efficacy of drugs in the eradication of Helicobacter pylori infection: the example of combined bismuth subsalicylate and nitrofurantoin. AN - 85223591; pmid-1882794 AB - Eradication of Helicobacter pylori infections has proved to be difficult. There is a need both for improved therapies and for ways to rapidly identify therapies that show sufficient promise to be worth pursuing. The objectives of this study were to evaluate the value of a therapeutic regimen of a bismuth salt plus nitrofurantoin for eradication of infection by H. pylori and to determine the validity/utility of the urea breath test in monitoring the progress of a clinical trial. We used an 80% eradication rule to define a promising therapeutic regimen, i.e., a regimen that eradicated the infection (no evidence of infection by H. pylori 4 wk after termination of therapy) in at least 80% of the individuals treated. Eighteen men (median age 38) with documented infection by H. pylori completed the study. At the end-of-study evaluation, H. pylori infection was eradicated (negative urea breath test, culture, and histology) in only one of 18 (5.5%) subjects; 15 were positive by the urea breath test, 16 by culture, 15 by Warthin-Starry stain, and 16 by the presence of acute-on-chronic inflammation. Using the 80% eradication rule, any one of these tests alone would have identified that the combination of antimicrobials tested was not effective in the eradication of the infection. We conclude that the urea breath test is a simple, noninvasive, cost-effective method to separate promising from unpromising candidate therapies and for the evaluation of new therapeutic concepts. JF - The American Journal of Gastroenterology AU - Graham, D Y AU - Klein, P D AU - Evans, D G AU - Evans, D J AU - Alpert, L C AU - Opekun, A AU - Jerdack, G R AU - Morgan, D R AD - Department of Medicine, USDA/ARS Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas. PY - 1991 SP - 1158 EP - 1162 VL - 86 IS - 9 SN - 0002-9270, 0002-9270 KW - Support, U.S. Gov't, P.H.S. KW - Organometallic Compounds KW - Human KW - Salicylates KW - Urea KW - Helicobacter Infections KW - Bismuth KW - Drug Therapy, Combination KW - Nitrofurantoin KW - Adult KW - Middle Age KW - Enzyme-Linked Immunosorbent Assay KW - Support, U.S. Gov't, Non-P.H.S. KW - Support, Non-U.S. Gov't KW - Gastritis KW - Male KW - Helicobacter pylori KW - Breath Tests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/85223591?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acomdisdome&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+American+Journal+of+Gastroenterology&rft.atitle=Simple+noninvasive+method+to+test+efficacy+of+drugs+in+the+eradication+of+Helicobacter+pylori+infection%3A+the+example+of+combined+bismuth+subsalicylate+and+nitrofurantoin.&rft.au=Graham%2C+D+Y%3BKlein%2C+P+D%3BEvans%2C+D+G%3BEvans%2C+D+J%3BAlpert%2C+L+C%3BOpekun%2C+A%3BJerdack%2C+G+R%3BMorgan%2C+D+R&rft.aulast=Graham&rft.aufirst=D&rft.date=1991-09-01&rft.volume=86&rft.issue=9&rft.spage=1158&rft.isbn=&rft.btitle=&rft.title=The+American+Journal+of+Gastroenterology&rft.issn=00029270&rft_id=info:doi/ LA - eng DB - ComDisDome N1 - Last updated - 2010-05-07 ER - TY - JOUR T1 - Environmental protection during animal disease eradication programmes. AN - 72637956; 1782433 AB - This paper identifies animal disease eradication (ADE) programme activities which may have a negative impact on the environment. It suggests ways to lessen the impact of such activities without compromising the programme objectives. Reducing losses from livestock and poultry diseases with prevention, control and eradication programmes produces a net positive impact on the environment. An Environmental Impact Statement (EIS) should be integrated into the planning of any ADE programme. Decision-makers should give due consideration to the environmental effects of ADE programme activities, together with cost, personnel needs and other, more traditional, management concerns. A better environment will be a supplemental benefit from ADE programmes. JF - Revue scientifique et technique (International Office of Epizootics) AU - McDaniel, H A AD - Veterinary Services, United States Department of Agriculture (USDA), Hyattsville, MD 20782. Y1 - 1991/09// PY - 1991 DA - September 1991 SP - 867 EP - 884 VL - 10 IS - 3 SN - 0253-1933, 0253-1933 KW - Disinfectants KW - 0 KW - Pesticides KW - Index Medicus KW - Animals KW - Environmental Pollution -- prevention & control KW - Animal Diseases -- prevention & control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72637956?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Revue+scientifique+et+technique+%28International+Office+of+Epizootics%29&rft.atitle=Environmental+protection+during+animal+disease+eradication+programmes.&rft.au=McDaniel%2C+H+A&rft.aulast=McDaniel&rft.aufirst=H&rft.date=1991-09-01&rft.volume=10&rft.issue=3&rft.spage=867&rft.isbn=&rft.btitle=&rft.title=Revue+scientifique+et+technique+%28International+Office+of+Epizootics%29&rft.issn=02531933&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-03-17 N1 - Date created - 1992-03-17 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Immunosuppressive effects of Fusarium moniliforme corn cultures in chickens. AN - 72631182; 1780260 AB - In the present study, the toxic and immunosuppressive effects of three isolates of Fusarium moniliforme (MRC 826, MRC 1069, and RRC 408) in male White Leghorn chickens were investigated. Chickens were fed diets containing .5, 5.0, or 25% of F. moniliforme corn cultures for 6 wk. About 30% of the chickens fed RRC 408 had leg weakness. Relative weights of bursae of Fabricius were lower in birds fed all doses of MRC 826. Birds fed 5.0 or 25% MRC 1069 had lower relative spleen weights. Thymus weights were lower in birds fed .5 and 5.0% RRC 408, but not in those fed 25%. Immunosuppressive effects were determined by measuring serum levels of primary and secondary agglutinin responses to SRBC and Brucella abortus. Birds fed 5.0 or 25% MRC 826 were immunosuppressed, as shown by low antibody titers to B. abortus in both the primary and secondary responses. Isolate MRC 1069 caused a decrease in secondary response to SRBC at 25% and B. abortus at the 5.0 and 25% of culture material. The RRC 408 isolated reduced the secondary response to SRBC at all doses and response to B. abortus at 5.0 and 25% of culture material. These results appear to be the first report that feed contaminated with F. moniliforme can produce deficiencies in the immune system of chickens. JF - Poultry science AU - Marijanovic, D R AU - Holt, P AU - Norred, W P AU - Bacon, C W AU - Voss, K A AU - Stancel, P C AU - Ragland, W L AD - USDA, Agricultural Research Service, Athens, Georgia 30613. Y1 - 1991/09// PY - 1991 DA - September 1991 SP - 1895 EP - 1901 VL - 70 IS - 9 SN - 0032-5791, 0032-5791 KW - Antibodies, Bacterial KW - 0 KW - Antigens, Bacterial KW - Mutagens KW - Polyenes KW - fusarin C KW - 79748-81-5 KW - Index Medicus KW - Animals KW - Bursa of Fabricius -- growth & development KW - Brucella abortus -- immunology KW - Mutagens -- toxicity KW - Antigens, Bacterial -- immunology KW - Bursa of Fabricius -- drug effects KW - Thymus Gland -- drug effects KW - Thymus Gland -- growth & development KW - Zea mays KW - Body Weight -- drug effects KW - Spleen -- growth & development KW - Polyenes -- toxicity KW - Antibodies, Bacterial -- biosynthesis KW - Spleen -- drug effects KW - Antibody Formation -- drug effects KW - Male KW - Organ Size -- drug effects KW - Immune Tolerance -- drug effects KW - Fusarium -- physiology KW - Food Microbiology KW - Chickens -- immunology KW - Chickens -- growth & development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72631182?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Poultry+science&rft.atitle=Immunosuppressive+effects+of+Fusarium+moniliforme+corn+cultures+in+chickens.&rft.au=Marijanovic%2C+D+R%3BHolt%2C+P%3BNorred%2C+W+P%3BBacon%2C+C+W%3BVoss%2C+K+A%3BStancel%2C+P+C%3BRagland%2C+W+L&rft.aulast=Marijanovic&rft.aufirst=D&rft.date=1991-09-01&rft.volume=70&rft.issue=9&rft.spage=1895&rft.isbn=&rft.btitle=&rft.title=Poultry+science&rft.issn=00325791&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-03-11 N1 - Date created - 1992-03-11 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Metabolism of meadowfoam oil fatty acids in mice. AN - 72586724; 1762520 AB - Meadowfoam oil is unusual because over 95% of the fatty acids are 20- and 22-carbon aliphatic acids with cis double bonds located principally at the 5- and/or 13-position. Since little information is available on the metabolism of the 5c-20:1 and 5c,13c-22:2 fatty acids, an exploratory study in mice was conducted to investigate the metabolism of purified samples of the free fatty acids isolated from meadowfoam oil, and to determine the effect of meadowfoam oil on weight gain and tissue lipid composition. Mice fed diets containing 5% by wt of the purified 5c-20:1 or 5c,13c-22:2 for 6 days exhibited no apparent physiological problems. Total liver lipids from mice fed the purified fatty acid diets contained mean values of 2.0% 5c-20:1 and 2.1% 5c,13c-22:2; total heart lipids contained 1.7% 5c-20:1 and 10.7% 5c,13c-22:2. Liver total phospholipids from mice fed a 5% meadowfoam oil diet for 19 wk contained 1.4% 5c-20:1 and 1.9% 5c,13c-22:2. There was no evidence of desaturation, elongation or retroconversion. Weight gain for mice fed the meadowfoam oil diet for 19 wk was similar to mice fed corn oil, and was higher than for mice fed hydrogenated cottonseed oil. Considering the high 5c-20:1 and 5c,13c-22:2 content of the diets, the percentages of these fatty acids in mouse tissue lipids from both the short- and long-term studies were low. Weight gain was surprisingly good since the meadowfoam oil diet was essential fatty acid-deficient. Results of this initial investigation suggest that the 5c-20:1 and 5c,13c-22:2 fatty acids were utilized primarily for energy.(ABSTRACT TRUNCATED AT 250 WORDS) JF - Lipids AU - Emken, E A AU - Adlof, R O AU - Abraham, S AD - National Center for Agricultural Utilization Research, ARS, Peoria, Illinois 61604. Y1 - 1991/09// PY - 1991 DA - September 1991 SP - 736 EP - 742 VL - 26 IS - 9 SN - 0024-4201, 0024-4201 KW - Fatty Acids, Unsaturated KW - 0 KW - Plant Oils KW - Triglycerides KW - meadowfoam oil KW - Index Medicus KW - Body Weight KW - Plants -- chemistry KW - Animals KW - Myocardium -- chemistry KW - Subcellular Fractions -- chemistry KW - Food, Formulated KW - Mice KW - Diet KW - Mice, Inbred BALB C KW - Liver -- chemistry KW - Female KW - Plant Oils -- metabolism KW - Triglycerides -- toxicity KW - Fatty Acids, Unsaturated -- metabolism KW - Plant Oils -- toxicity KW - Triglycerides -- metabolism KW - Fatty Acids, Unsaturated -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72586724?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Lipids&rft.atitle=Metabolism+of+meadowfoam+oil+fatty+acids+in+mice.&rft.au=Emken%2C+E+A%3BAdlof%2C+R+O%3BAbraham%2C+S&rft.aulast=Emken&rft.aufirst=E&rft.date=1991-09-01&rft.volume=26&rft.issue=9&rft.spage=736&rft.isbn=&rft.btitle=&rft.title=Lipids&rft.issn=00244201&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-02-13 N1 - Date created - 1992-02-13 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Group Development in the Natural Environment. Expectations, Outcomes, and Techniques AN - 20805549; 10903667 AB - Implicit in many programs featuring a human-natural environment interaction has been the belief that group development is a desirable outcome. This study investigated the effectiveness of one natural environment-based program in facilitating the development of groups. In addition, the variables of gender, age, identification with the group, course type, and course length were also studied for their influence on group development. The results suggest that this particular type of program could be effective in enhancing group development. In addition, the variables of sex, type of course, and group identification had varying levels of impact on the development of individual groups. JF - Environment & Behavior AU - Ewert, Alan AU - Heywood, John AD - USDA Forest Service Y1 - 1991/09// PY - 1991 DA - Sep 1991 SP - 592 EP - 615 PB - Sage Publications Ltd., 6 Bonhill St. London EC2A 4PU VL - 23 IS - 5 SN - 0013-9165, 0013-9165 KW - Environment Abstracts; Environmental Engineering Abstracts KW - Age KW - Gender KW - EE 10:General Environmental Engineering KW - ENA 07:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20805549?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environment+%26+Behavior&rft.atitle=Group+Development+in+the+Natural+Environment.+Expectations%2C+Outcomes%2C+and+Techniques&rft.au=Ewert%2C+Alan%3BHeywood%2C+John&rft.aulast=Ewert&rft.aufirst=Alan&rft.date=1991-09-01&rft.volume=23&rft.issue=5&rft.spage=592&rft.isbn=&rft.btitle=&rft.title=Environment+%26+Behavior&rft.issn=00139165&rft_id=info:doi/10.1177%2F0013916591235004 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Gender; Age DO - http://dx.doi.org/10.1177/0013916591235004 ER - TY - JOUR T1 - The influence of carbon and nitrogen nutrition on fusarin C biosynthesis by Fusarium moniliforme. AN - 72600363; 1769527 AB - The influence of various carbon and nitrogen sources on fusarin C synthesis was examined in submerged cultures of Fusarium moniliforme NRRL 13616. Using a zinc-deficient, synthetic medium, highest levels of fusarin C were produced by cultures grown with urea or ammonium sulfate as the nitrogen source and fructose, sucrose, or glucose as the carbon source. In media supplemented with various concentrations of glucose and ammonium sulfate, glucose concentrations which provided excess carbohydrate significantly increased fusarin C synthesis, regardless of the ammonium sulfate concentration. JF - FEMS microbiology letters AU - Jackson, M A AU - Freer, S N AD - National Center for Agricultural Utilization Research, USDA, Peoria, IL 61604. Y1 - 1991/08/15/ PY - 1991 DA - 1991 Aug 15 SP - 323 EP - 328 VL - 66 IS - 3 SN - 0378-1097, 0378-1097 KW - Mutagens KW - 0 KW - Polyenes KW - fusarin C KW - 79748-81-5 KW - Urea KW - 8W8T17847W KW - Glucose KW - IY9XDZ35W2 KW - Zinc KW - J41CSQ7QDS KW - Ammonium Sulfate KW - SU46BAM238 KW - Index Medicus KW - Urea -- metabolism KW - Glucose -- metabolism KW - Zinc -- metabolism KW - Ammonium Sulfate -- metabolism KW - Fusarium -- metabolism KW - Polyenes -- metabolism KW - Fusarium -- growth & development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72600363?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=FEMS+microbiology+letters&rft.atitle=The+influence+of+carbon+and+nitrogen+nutrition+on+fusarin+C+biosynthesis+by+Fusarium+moniliforme.&rft.au=Jackson%2C+M+A%3BFreer%2C+S+N&rft.aulast=Jackson&rft.aufirst=M&rft.date=1991-08-15&rft.volume=66&rft.issue=3&rft.spage=323&rft.isbn=&rft.btitle=&rft.title=FEMS+microbiology+letters&rft.issn=03781097&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-02-26 N1 - Date created - 1992-02-26 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Economic effects of horn fly (Diptera: Muscidae) populations on beef cattle exposed to three pesticide treatment regimes. AN - 72759131; 1842800 AB - Horn flies could not be maintained below 50 per animal with sprays or dusts during a 21-wk study. However, weights of cows and calves and condition scores of cows were not influenced by suppression of Haematobia irritans (L.) populations. Results show that cattle in northwest Florida can tolerate average populations of greater than or equal to 200 flies for 70 d with no adverse economic effects. Spray treatments providing the best fly control were Lintox-D and Ra-Vap. The most economical products for use were Del-Tox, Lintox-D, and Ra-Vap. JF - Journal of economic entomology AU - Hogsette, J A AU - Prichard, D L AU - Ruff, J P AD - USDA-ARS, Medical and Veterinary Entomology Research Laboratory, Gainesville, Florida 32604. Y1 - 1991/08// PY - 1991 DA - August 1991 SP - 1270 EP - 1274 VL - 84 IS - 4 SN - 0022-0493, 0022-0493 KW - Aerosols KW - 0 KW - Organothiophosphorus Compounds KW - Pesticides KW - Tetrachlorvinphos KW - DM33MW89QU KW - dioxathion KW - J2DF82JA7N KW - Index Medicus KW - Animals KW - Cattle KW - Female KW - Ectoparasitic Infestations -- drug therapy KW - Ectoparasitic Infestations -- economics KW - Ectoparasitic Infestations -- veterinary KW - Cattle Diseases -- drug therapy KW - Muscidae KW - Cattle Diseases -- economics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72759131?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+economic+entomology&rft.atitle=Economic+effects+of+horn+fly+%28Diptera%3A+Muscidae%29+populations+on+beef+cattle+exposed+to+three+pesticide+treatment+regimes.&rft.au=Hogsette%2C+J+A%3BPrichard%2C+D+L%3BRuff%2C+J+P&rft.aulast=Hogsette&rft.aufirst=J&rft.date=1991-08-01&rft.volume=84&rft.issue=4&rft.spage=1270&rft.isbn=&rft.btitle=&rft.title=Journal+of+economic+entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1993-01-27 N1 - Date created - 1993-01-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Interactions of carbaryl with susceptible and multiresistant house flies (Diptera: Muscidae). AN - 72756788; 1842792 AB - The in vivo and in vitro fate of [14C]carbaryl was compared in adult male and female house flies from an insecticide-susceptible (S) strain and a resistant (R) strain with multiple resistance to different classes of insecticides. Cuticular penetration of topically applied carbaryl (0.01 microgram/insect) was very rapid and rates were essentially the same among males and females of both strains. Rates of penetration were dramatically reduced as the concentration of applied carbaryl was increased over a range of 0.01-5.0 micrograms/insect. In vivo and in vitro tests demonstrated that the R strain had an enhanced capability for the metabolic degradation of carbaryl. In evaluations of topical toxicity and in vitro metabolic degradation, coadministration of the metabolic synergists piperonyl butoxide (a microsomal oxidase inhibitor) and S,S,S-tributyl phosphorothioate (DEF, an esterase inhibitor) with carbaryl provided conclusive evidence that microsomal oxidases were the major factor in enhanced metabolism and that hydrolytic enzymes had only a minor effect. Studies of the in vitro inhibition of acetylcholinesterase (AChE) activity by carbaryl demonstrated that there was no difference between males and females of a given strain and that the R strain AChE was considerably less sensitive to inhibition. These tests also indicated that homogenates of brains from the R strain contained more than one form of AChE with different sensitivities to the inhibitor. This information and results of toxicity tests with other insecticides suggest that the R strain is not homozygous in its resistance to carbaryl. JF - Journal of economic entomology AU - Bull, D L AU - Pryor, N W AD - Food Animal Protection Research Laboratory, USDA-ARS, College Station, Texas 77845. Y1 - 1991/08// PY - 1991 DA - August 1991 SP - 1145 EP - 1153 VL - 84 IS - 4 SN - 0022-0493, 0022-0493 KW - Cholinesterase Inhibitors KW - 0 KW - Carbaryl KW - R890C8J3N1 KW - Index Medicus KW - Animals KW - Insecticide Resistance KW - Male KW - Female KW - Houseflies -- metabolism KW - Carbaryl -- pharmacokinetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72756788?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+economic+entomology&rft.atitle=Interactions+of+carbaryl+with+susceptible+and+multiresistant+house+flies+%28Diptera%3A+Muscidae%29.&rft.au=Bull%2C+D+L%3BPryor%2C+N+W&rft.aulast=Bull&rft.aufirst=D&rft.date=1991-08-01&rft.volume=84&rft.issue=4&rft.spage=1145&rft.isbn=&rft.btitle=&rft.title=Journal+of+economic+entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1993-01-27 N1 - Date created - 1993-01-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Solid-phase extraction of pesticides from water: possible interferences from dissolved organic material. AN - 72482219; 1952081 AB - A multiresidue analysis for trifluralin, simazine, atrazine, propazine, diazinon, parathion-methyl, alachlor, malathion, parathion, chlorpyrifos, pendimethalin, methidathion, and DEF in water that utilizes liquid-solid extraction (LSE) with octadecyl-bonded silica cartridges (C18BSCs) followed by gas chromatography/mass spectrometric analysis was developed. Recoveries of most pesticides were greater than 80% with C18BSCs from fortified water at concentration levels from about 1 to 500 ppb. Recoveries with C18BSCs, from an optically adjusted humic acid solution (10 ppm dissolved organic carbon) made to simulate a natural water with a high dissolved organic content, ranged from 29 to 153% and in general were lower than recoveries obtained from pure water. 14C-Labeled diazinon and parathion were recovered from the humic acid solution at levels of 57 and 68%, respectively, with C18BSCs; the remainder of the labeled pesticides was found in the cartridge eluents. Partition coefficients with human acid were calculated based on recovery of 14C-labeled pesticides from the C18BSCs. JF - Analytical chemistry AU - Johnson, W E AU - Fendinger, N J AU - Plimmer, J R AD - Natural Resources Institute, Environmental Chemistry Laboratory, USDA-ARS, Beltsville, Maryland 20705. Y1 - 1991/08/01/ PY - 1991 DA - 1991 Aug 01 SP - 1510 EP - 1513 VL - 63 IS - 15 SN - 0003-2700, 0003-2700 KW - Indicators and Reagents KW - 0 KW - Pesticide Residues KW - Pesticides KW - Water Pollutants, Chemical KW - Index Medicus KW - Pesticide Residues -- analysis KW - Pesticides -- analysis KW - Water Pollutants, Chemical -- analysis KW - Pesticides -- isolation & purification UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72482219?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Analytical+chemistry&rft.atitle=Solid-phase+extraction+of+pesticides+from+water%3A+possible+interferences+from+dissolved+organic+material.&rft.au=Johnson%2C+W+E%3BFendinger%2C+N+J%3BPlimmer%2C+J+R&rft.aulast=Johnson&rft.aufirst=W&rft.date=1991-08-01&rft.volume=63&rft.issue=15&rft.spage=1510&rft.isbn=&rft.btitle=&rft.title=Analytical+chemistry&rft.issn=00032700&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-12-04 N1 - Date created - 1991-12-04 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Tumor necrosis factor as a potential mediator of acute metabolic and hormonal responses to endotoxemia in calves. AN - 72162465; 1928916 AB - The effects of coliform endotoxin (E) and recombinant bovine tumor necrosis factor alpha (TNF) were compared with respect to clinical signs of disease and changes in plasma metabolite and pituitary and pancreatic hormone concentrations in calves. In addition, changes in plasma TNF concentration during each challenge exposure were quantitated by use of radioimmunoassay. Healthy Holstein bull calves with mean body weight of 90 kg were each given, in order, on different days, saline solution (5.0 ml, IV, day 1, n = 4), E (type 055:B5, 1.0 micrograms/kg of body weight IV, day 2, n = 4) and TNF (5.0 micrograms/kg IV, day 9, n = 3). Jugular venous blood samples, rectal temperature reading, and PCV were obtained at hourly intervals before (2 hours) and after challenge exposure. The PCV increased (P less than 0.05) after E and TNF administrations for the first 5 hours, then returned to normal in calves given E, but decreased and remained low in calves given TNF through 24 hours. Plasma triglyceride and nonesterified free fatty acids concentrations were increased through 10 hours (P less than 0.05) after E administration, whereas triglyceride and nonesterified free fatty acids concentrations were not significantly affected by TNF administration. Increase in blood glucose concentration at 1 hour after administration of E and TNF was followed by prolonged hypoglycemia that lasted through 6 hours. Changes in plasma insulin concentration paralleled the observed changes in glucose concentration, initially increased at 2 hours after E and TNF (P less than 0.05) administrations, but then tended to decrease below control values thereafter.(ABSTRACT TRUNCATED AT 250 WORDS) JF - American journal of veterinary research AU - Kenison, D C AU - Elsasser, T H AU - Fayer, R AD - Ruminant Nutrition Laboratory, Livestock and Poultry Science Institute, USDA, Agricultural Research Service, Beltsville, MD 20705. Y1 - 1991/08// PY - 1991 DA - August 1991 SP - 1320 EP - 1326 VL - 52 IS - 8 SN - 0002-9645, 0002-9645 KW - Blood Glucose KW - 0 KW - Endotoxins KW - Fatty Acids, Nonesterified KW - Insulin KW - Triglycerides KW - Tumor Necrosis Factor-alpha KW - Luteinizing Hormone KW - 9002-67-9 KW - Growth Hormone KW - 9002-72-6 KW - Index Medicus KW - Acute Disease KW - Triglycerides -- blood KW - Animals KW - Regression Analysis KW - Growth Hormone -- blood KW - Insulin -- blood KW - Blood Glucose -- analysis KW - Hematocrit -- veterinary KW - Cattle KW - Body Temperature KW - Luteinizing Hormone -- blood KW - Fatty Acids, Nonesterified -- blood KW - Male KW - Shock, Septic -- veterinary KW - Tumor Necrosis Factor-alpha -- toxicity KW - Tumor Necrosis Factor-alpha -- analysis KW - Shock, Septic -- etiology KW - Endotoxins -- toxicity KW - Cattle Diseases -- etiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72162465?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+journal+of+veterinary+research&rft.atitle=Tumor+necrosis+factor+as+a+potential+mediator+of+acute+metabolic+and+hormonal+responses+to+endotoxemia+in+calves.&rft.au=Kenison%2C+D+C%3BElsasser%2C+T+H%3BFayer%2C+R&rft.aulast=Kenison&rft.aufirst=D&rft.date=1991-08-01&rft.volume=52&rft.issue=8&rft.spage=1320&rft.isbn=&rft.btitle=&rft.title=American+journal+of+veterinary+research&rft.issn=00029645&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-10-31 N1 - Date created - 1991-10-31 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Effects of a hydrated sodium calcium aluminosilicate on growing turkey poults during aflatoxicosis. AN - 72149162; 1656420 AB - Effects of adding .5% of a hydrated sodium calcium aluminosilicate (HSCAS) to diets containing 1 or .5 mg aflatoxin (AF)/kg were determined in male turkey poults from 1 day to 3 wk of age. Body weight gains were significantly reduced by 51 and 19% in turkey poults fed 1 and .5 mg AF/kg, respectively; efficiency of feed utilization was not affected. There were no deaths in poults fed .5 mg AF/kg; however, the mortality rate was 88% in poults fed 1 mg AF/kg. The addition of .5% dietary HSCAS resulted in a 68% decrease in mortality to 28% for the 3-wk experimental period. Treatment-related changes in relative organ weights, hematological values, serum biochemical values, and enzyme activities were observed. The HSCAS in the absence of AF did not alter any of the parameters measured. The HSCAS diminished the adverse effects of AF on body weight gains, most relative organ weights, hematological values, serum biochemical values, and enzyme activities associated with .5 mg AF/kg, but not 1 mg AF/kg. These findings indicate that HSCAS may diminish many of the adverse effects of AF in an AF-sensitive species, the turkey. JF - Poultry science AU - Kubena, L F AU - Huff, W E AU - Harvey, R B AU - Yersin, A G AU - Elissalde, M H AU - Witzel, D A AU - Giroir, L E AU - Phillips, T D AU - Petersen, H D AD - USDA, Agricultural Research Service, Food Animal Protection Research Laboratory, College Station, Texas 77845. Y1 - 1991/08// PY - 1991 DA - August 1991 SP - 1823 EP - 1830 VL - 70 IS - 8 SN - 0032-5791, 0032-5791 KW - Aflatoxins KW - 0 KW - Aluminum Silicates KW - Enzymes KW - Zeolites KW - 1318-02-1 KW - Index Medicus KW - Weight Gain -- drug effects KW - Animals KW - Stomach, Avian -- drug effects KW - Enzymes -- blood KW - Blood Chemical Analysis KW - Liver -- drug effects KW - Kidney -- drug effects KW - Pancreas -- drug effects KW - Bursa of Fabricius -- drug effects KW - Male KW - Organ Size -- drug effects KW - Aflatoxins -- poisoning KW - Poultry Diseases -- prevention & control KW - Aluminum Silicates -- pharmacology KW - Turkeys KW - Mycotoxicosis -- prevention & control KW - Aluminum Silicates -- therapeutic use KW - Mycotoxicosis -- veterinary KW - Poultry Diseases -- etiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72149162?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Poultry+science&rft.atitle=Effects+of+a+hydrated+sodium+calcium+aluminosilicate+on+growing+turkey+poults+during+aflatoxicosis.&rft.au=Kubena%2C+L+F%3BHuff%2C+W+E%3BHarvey%2C+R+B%3BYersin%2C+A+G%3BElissalde%2C+M+H%3BWitzel%2C+D+A%3BGiroir%2C+L+E%3BPhillips%2C+T+D%3BPetersen%2C+H+D&rft.aulast=Kubena&rft.aufirst=L&rft.date=1991-08-01&rft.volume=70&rft.issue=8&rft.spage=1823&rft.isbn=&rft.btitle=&rft.title=Poultry+science&rft.issn=00325791&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-11-06 N1 - Date created - 1991-11-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - The California 1980 Medfly Eradication Program: An Analysis of Decision Making under Nonroutine Conditions AN - 61263478; 92Y7230 AB - Information that was overlooked by advisors & managers in the 1980 California Medfly Eradication Program is discussed. While the medfly problem was approached from three different perspectives -- rational, organizational, cognitive -- information considered crucial under nonroutine conditions was obscured, & public attention & controversy over the program prevented interactive solutions. Conclusions note the importance of cross-cueing perspectives in order to identify sources of uncertainty, recognize feedback, & respond adaptively. 4 Tables, 2 Figures, 67 References. Adapted from the source document. JF - Technological Forecasting and Social Change AU - Lorraine, Hilary AD - USDA-APHIS-S&T American Embassy, APO Miami FL 34024 Y1 - 1991/08// PY - 1991 DA - August 1991 SP - 1 EP - 32 VL - 40 IS - 1 SN - 0040-1625, 0040-1625 KW - decision making, information use, nonroutine conditions, illustrative example KW - 1980 Medfly eradication program KW - California KW - Information KW - Decision Making KW - Utilization KW - article KW - 2462: policy, planning, forecasting; policy sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/61263478?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Asocabs&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Technological+Forecasting+and+Social+Change&rft.atitle=The+California+1980+Medfly+Eradication+Program%3A+An+Analysis+of+Decision+Making+under+Nonroutine+Conditions&rft.au=Lorraine%2C+Hilary&rft.aulast=Lorraine&rft.aufirst=Hilary&rft.date=1991-08-01&rft.volume=40&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Technological+Forecasting+and+Social+Change&rft.issn=00401625&rft_id=info:doi/ LA - English DB - Sociological Abstracts N1 - Date revised - 2007-04-01 N1 - Last updated - 2016-09-28 N1 - CODEN - TFSCB3 N1 - SubjectsTermNotLitGenreText - Decision Making; Information; Utilization ER - TY - JOUR T1 - Determination of ability of a thymidine kinase-negative deletion mutant of bovine herpesvirus-1 to cause abortion in cattle. AN - 72090295; 1654031 AB - The Cooper isolate of bovine herpesvirus-1, which causes abortion in cattle, was used to construct a thymidine kinase-negative (TK-) deletion mutant virus. Twelve heifers were inoculated IV at 25 to 29 weeks of pregnancy with either TK- or thymidine kinase-positive (TK+) Cooper virus. All heifers developed fevers of 1 to 2 C during the first week after inoculation. Temperatures of TK+ inoculates were slightly higher and remained above normal a few days longer than in TK- inoculates. Viremia was detected in 5 of 6 TK+ inoculates and in all 6 TK- inoculates. More virus isolations were made from nasal and vaginal swab specimens of TK+ inoculates than from swab specimens of TK- inoculates. All heifers developed virus neutralizing antibody within 14 days after inoculation and antibody titers were similar between the 2 groups. None of the TK- inoculated heifers aborted and their calves did not have neutralizing antibody at birth. Abortion occurred in 5 of 6 heifers given TK+ virus. All aborted fetuses were infected with bovine herpesvirus-1, as demonstrated by virus isolation or detection of viral antigen in fetal tissues. These results indicate that inactivation of the TK gene reduces abortifacient activity of bovine herpesvirus-1. JF - American journal of veterinary research AU - Miller, J M AU - Whetstone, C A AU - Bello, L J AU - Lawrence, W C AD - Virology Cattle Research Unit, National Animal Disease Center, USDA, Agricultural Research Service, Ames, IA 50010. Y1 - 1991/07// PY - 1991 DA - July 1991 SP - 1038 EP - 1043 VL - 52 IS - 7 SN - 0002-9645, 0002-9645 KW - TK KW - Antibodies, Viral KW - 0 KW - Antigens, Viral KW - Thymidine Kinase KW - EC 2.7.1.21 KW - Index Medicus KW - Animals KW - Open Reading Frames KW - Placenta -- microbiology KW - Plasmids KW - Autoradiography KW - Vagina -- microbiology KW - Antigens, Viral -- analysis KW - Pregnancy KW - Antibodies, Viral -- biosynthesis KW - Mutagenesis KW - Nasal Mucosa -- microbiology KW - Cattle KW - Body Temperature KW - Restriction Mapping KW - Neutralization Tests KW - Viremia -- veterinary KW - Immunohistochemistry KW - Female KW - Abortion, Veterinary -- microbiology KW - Herpesvirus 1, Bovine -- pathogenicity KW - Herpesvirus 1, Bovine -- immunology KW - Cattle Diseases -- microbiology KW - Thymidine Kinase -- genetics KW - Herpesvirus 1, Bovine -- genetics KW - Herpesvirus 1, Bovine -- enzymology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72090295?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+journal+of+veterinary+research&rft.atitle=Determination+of+ability+of+a+thymidine+kinase-negative+deletion+mutant+of+bovine+herpesvirus-1+to+cause+abortion+in+cattle.&rft.au=Miller%2C+J+M%3BWhetstone%2C+C+A%3BBello%2C+L+J%3BLawrence%2C+W+C&rft.aulast=Miller&rft.aufirst=J&rft.date=1991-07-01&rft.volume=52&rft.issue=7&rft.spage=1038&rft.isbn=&rft.btitle=&rft.title=American+journal+of+veterinary+research&rft.issn=00029645&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-10-17 N1 - Date created - 1991-10-17 N1 - Date revised - 2017-01-13 N1 - Gene symbol - TK N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Effect of level of endophyte infection, nitrogen fertilization rate, grazing period, and paddock exchange on some chemical properties of four bovine tissues. AN - 72074708; 1653201 AB - Three grazing experiments were conducted to determine the effect of level of endophyte infection, rate of N fertilization of tall fescue grass, grazing period, and paddock exchange on selected chemical properties of four bovine carcass tissues. Samples of semitendinosus and longissimus muscle and of subcutaneous and perinephric adipose tissue were excised from the left side of each carcass. In Exp. 1, percentage of stearic acid was higher (P less than .05) and percentages of palmitoleic and oleic acid were lower (P less than .05) in all tissues from steers grazed on LELN Au-Triumph fescue than in tissues from steers grazed on LELN KY-31 fescue. Grazing periods of 175 or 245 d or paddock exchange (Exp. 2) had no significant effect on proximate composition of semitendinosus and longissimus muscles; however, moisture content was higher (P less than .05) in the semitendinosus muscle from steers grazed on 100% (100E) endophyte-infected KY-31 fescue. Forage treatment, grazing period, and paddock exchange (Exp. 2 and 3) had no significant effect on percentage of saturated fatty acids in the subcutaneous, semitendinosus, and longissimus tissue samples. In Exp. 2 and 3, percentages of saturated fatty acids were higher (P less than .05) in subcutaneous and perinephric adipose tissue samples from steers grazed on 100E than in samples from steers grazed on zero endophyte (OE) fescue.(ABSTRACT TRUNCATED AT 250 WORDS) JF - Journal of animal science AU - Townsend, W E AU - Snook, M E AU - Stuedemann, J A AU - Wilson, R L AD - Poult. Processing and Meat Quality Res. Unit., USDA-ARS, Richard B. Russell Agricultural Research Center, Athens, GA 30613. Y1 - 1991/07// PY - 1991 DA - July 1991 SP - 2871 EP - 2882 VL - 69 IS - 7 SN - 0021-8812, 0021-8812 KW - Fatty Acids KW - 0 KW - Fatty Acids, Monounsaturated KW - Fertilizers KW - Oleic Acids KW - Palmitic Acids KW - Stearic Acids KW - Water KW - 059QF0KO0R KW - palmitoleic acid KW - 209B6YPZ4I KW - Oleic Acid KW - 2UMI9U37CP KW - stearic acid KW - 4ELV7Z65AP KW - Index Medicus KW - Water -- analysis KW - Oleic Acids -- analysis KW - Animals KW - Animal Feed KW - Hydrogen-Ion Concentration KW - Stearic Acids -- analysis KW - Palmitic Acids -- analysis KW - Time Factors KW - Fatty Acids -- analysis KW - Muscles -- chemistry KW - Food Microbiology KW - Cattle -- metabolism KW - Poaceae -- microbiology KW - Adipose Tissue -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72074708?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+animal+science&rft.atitle=Effect+of+level+of+endophyte+infection%2C+nitrogen+fertilization+rate%2C+grazing+period%2C+and+paddock+exchange+on+some+chemical+properties+of+four+bovine+tissues.&rft.au=Townsend%2C+W+E%3BSnook%2C+M+E%3BStuedemann%2C+J+A%3BWilson%2C+R+L&rft.aulast=Townsend&rft.aufirst=W&rft.date=1991-07-01&rft.volume=69&rft.issue=7&rft.spage=2871&rft.isbn=&rft.btitle=&rft.title=Journal+of+animal+science&rft.issn=00218812&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-10-09 N1 - Date created - 1991-10-09 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Novel occurrence of cyclopiazonic acid in sunflower seeds. AN - 80703419; 1858315 AB - Cyclopiazonic acid (CPA), a secondary metabolite produced by several species of Aspergillus and Penicillium, was detected in moldy sunflower seed screenings fed to sows who experienced conception problems and feed refusal. Tandem mass spectrometry confirmed the CPA which was estimated by thin-layer chromatography (TLC) to be present at 10 ppm. A Penicillium species was isolated from the moldy seeds, but in culture it did not produce CPA. JF - Veterinary and human toxicology AU - Ross, P F AU - Rice, L G AU - Casper, H H AU - Crenshaw, J D AU - Richard, J L AD - Animal and Plant Health Inspection Service, Science and Technology, National Veterinary Services Laboratories, Ames, IA 50010. Y1 - 1991/06// PY - 1991 DA - June 1991 SP - 284 EP - 285 VL - 33 IS - 3 SN - 0145-6296, 0145-6296 KW - Indoles KW - 0 KW - cyclopiazonic acid KW - X9TLY4580Z KW - Index Medicus KW - Swine KW - Animals KW - Chromatography, Thin Layer -- veterinary KW - Mass Spectrometry -- veterinary KW - Appetite -- drug effects KW - Female KW - Seeds -- analysis KW - Indoles -- isolation & purification KW - Indoles -- poisoning KW - Swine Diseases -- chemically induced KW - Fertilization -- drug effects KW - Helianthus UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80703419?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Veterinary+and+human+toxicology&rft.atitle=Novel+occurrence+of+cyclopiazonic+acid+in+sunflower+seeds.&rft.au=Ross%2C+P+F%3BRice%2C+L+G%3BCasper%2C+H+H%3BCrenshaw%2C+J+D%3BRichard%2C+J+L&rft.aulast=Ross&rft.aufirst=P&rft.date=1991-06-01&rft.volume=33&rft.issue=3&rft.spage=284&rft.isbn=&rft.btitle=&rft.title=Veterinary+and+human+toxicology&rft.issn=01456296&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-08-23 N1 - Date created - 1991-08-23 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - The individual and combined toxicity of kojic acid and aflatoxin in broiler chickens. AN - 72081928; 1886843 AB - The individual and combined effects of kojic acid and aflatoxin were studied in male broiler chicks (Peterson x Hubbard). The experiment had a two by two factorial arrangement of treatments with dietary treatments of 0 and 2,500 mg kojic acid/kg feed and 0 and 2.5 mg aflatoxin/kg feed. The broilers were obtained at 1 day of age and housed in electrically heated batteries with feed and water available for ad libitum intake until they reached 3 wk of age. The toxicity of kojic acid was characterized by significant (P less than .05) reductions in body weight, the relative weight of the bursa of Fabricius, serum cholesterol concentration, and serum alkaline phosphatase activity, and by significant (P less than .05) increases in the relative weight of the pancreas, proventriculus, and gizzard, and serum concentrations of uric acid and triglycerides. Aflatoxicosis was characterized by significant (P less than .05) reductions in body weight, serum concentrations of total protein, albumin, cholesterol, and inorganic phosphorus, serum glutamic oxalacetic transaminase activity, and mean corpuscular volume, mean corpuscular hemoglobin, and mean corpuscular hemoglobin concentration. Significant (P less than .05) increases in the relative weight of the liver, kidney, spleen, pancreas, proventriculus, and heart, and the serum pyruvic transaminase activity were also caused by aflatoxin alone. The only significant (P less than .05) interaction between kojic acid and aflatoxin, which can best be described as antagonistic, was seen through an increase in mean corpuscular hemoglobin and mean corpuscular hemoglobin concentration. These data indicate that kojic acid is not an aflatoxin synergist at the levels used in the present study. JF - Poultry science AU - Giroir, L E AU - Huff, W E AU - Kubena, L F AU - Harvey, R B AU - Elissalde, M H AU - Witzel, D A AU - Yersin, A G AU - Ivie, G W AD - USDA, Food Animal Protection Research Laboratory, College Station, Texas 77845. Y1 - 1991/06// PY - 1991 DA - June 1991 SP - 1351 EP - 1356 VL - 70 IS - 6 SN - 0032-5791, 0032-5791 KW - Aflatoxins KW - 0 KW - Mycotoxins KW - Pyrones KW - kojic acid KW - 6K23F1TT52 KW - Index Medicus KW - Animals KW - Drug Interactions KW - Random Allocation KW - Kidney -- drug effects KW - Heart -- drug effects KW - Proventriculus -- drug effects KW - Bursa of Fabricius -- drug effects KW - Pancreas -- drug effects KW - Liver -- drug effects KW - Body Weight -- drug effects KW - Mycotoxicosis -- etiology KW - Gizzard, Avian -- drug effects KW - Spleen -- drug effects KW - Male KW - Organ Size -- drug effects KW - Chickens -- physiology KW - Pyrones -- toxicity KW - Chickens -- blood KW - Chickens -- growth & development KW - Aflatoxins -- toxicity KW - Mycotoxins -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72081928?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Poultry+science&rft.atitle=The+individual+and+combined+toxicity+of+kojic+acid+and+aflatoxin+in+broiler+chickens.&rft.au=Giroir%2C+L+E%3BHuff%2C+W+E%3BKubena%2C+L+F%3BHarvey%2C+R+B%3BElissalde%2C+M+H%3BWitzel%2C+D+A%3BYersin%2C+A+G%3BIvie%2C+G+W&rft.aulast=Giroir&rft.aufirst=L&rft.date=1991-06-01&rft.volume=70&rft.issue=6&rft.spage=1351&rft.isbn=&rft.btitle=&rft.title=Poultry+science&rft.issn=00325791&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-10-08 N1 - Date created - 1991-10-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Concentrations of fumonisin B1 in feeds associated with animal health problems. AN - 72081668; 1886638 AB - Ninety-eight samples of feeds associated with 44 cases of equine leukoencephalomalacia (ELEM) and 83 samples of feed associated with 42 cases of a porcine pulmonary edema syndrome (PPE) were analyzed for fumonisin B1 (FB1). For comparison purposes, 51 feed samples not associated with PPE or ELEM were also analyzed. Feed associated with ELEM contained FB1 ranging from less than 1 microgram/g to 126 micrograms/g with 75% of the cases having at least 1 sample above 10 micrograms/g. Feeds associated with PPE ranged from less than 1 microgram/g to 330 micrograms/g with 71% of the cases having at least 1 sample greater than 10 micrograms/g. Quantitation was by high performance liquid chromatography (HPLC)/fluorescence using the fluorescamine derivative with confirmation by thin layer chromatography (TLC) and/or gas chromatography/mass spectroscopy (GC/MS). JF - Mycopathologia AU - Ross, P F AU - Rice, L G AU - Plattner, R D AU - Osweiler, G D AU - Wilson, T M AU - Owens, D L AU - Nelson, H A AU - Richard, J L AD - US Department of Agriculture, Animal and Plant Health Inspection Service, National Veterinary Services Laboratories, Ames, IA 50010. Y1 - 1991/06// PY - 1991 DA - June 1991 SP - 129 EP - 135 VL - 114 IS - 3 SN - 0301-486X, 0301-486X KW - Carcinogens, Environmental KW - 0 KW - Fumonisins KW - Mycotoxins KW - fumonisin B1 KW - 3ZZM97XZ32 KW - Index Medicus KW - Swine KW - Pulmonary Edema -- veterinary KW - Animals KW - Carcinogens, Environmental -- adverse effects KW - Zea mays KW - Gas Chromatography-Mass Spectrometry KW - Horses KW - Encephalomalacia -- etiology KW - Chromatography, Thin Layer KW - Pulmonary Edema -- etiology KW - Carcinogens, Environmental -- analysis KW - Encephalomalacia -- veterinary KW - Chromatography, High Pressure Liquid KW - Swine Diseases -- etiology KW - Food Microbiology KW - Animal Feed -- adverse effects KW - Horse Diseases -- etiology KW - Mycotoxins -- adverse effects KW - Animal Feed -- analysis KW - Mycotoxins -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72081668?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mycopathologia&rft.atitle=Concentrations+of+fumonisin+B1+in+feeds+associated+with+animal+health+problems.&rft.au=Ross%2C+P+F%3BRice%2C+L+G%3BPlattner%2C+R+D%3BOsweiler%2C+G+D%3BWilson%2C+T+M%3BOwens%2C+D+L%3BNelson%2C+H+A%3BRichard%2C+J+L&rft.aulast=Ross&rft.aufirst=P&rft.date=1991-06-01&rft.volume=114&rft.issue=3&rft.spage=129&rft.isbn=&rft.btitle=&rft.title=Mycopathologia&rft.issn=0301486X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-10-07 N1 - Date created - 1991-10-07 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Red imported fire ant (Hymenoptera: Formicidae) control with a corn grit bait of fenoxycarb without soybean oil. AN - 72077543; 1885843 AB - The standard fenoxycarb fire ant bait formulation (Logic), composed of pregel defatted corn grits and soybean oil toxicant, was modified by eliminating the soybean oil. This formulation without soybean oil contained greater than 2 times more fenoxycarb and was as effective as the standard bait formulation against laboratory colonies of red imported fire ant, Solenopsis invicta Buren. In field tests, the modified and standard baits were equally effective in controlling fire ants after 6, 12, and 18 wk. Individual worker ants obtained from plots treated with fenoxycarb baits without soybean oil had greater than 47 times less fenoxycarb than did workers from the plots treated with the standard fenoxycarb baits containing soybean oil. JF - Journal of economic entomology AU - Williams, D F AU - Banks, W A AU - Vander Meer, R K AU - Lofgren, C S AD - Insects Affecting Man and Animals Research Laboratory, USDA-ARS, Gainesville, Florida 32604. Y1 - 1991/06// PY - 1991 DA - June 1991 SP - 814 EP - 817 VL - 84 IS - 3 SN - 0022-0493, 0022-0493 KW - Carbamates KW - 0 KW - Phenylcarbamates KW - Soybean Oil KW - 8001-22-7 KW - fenoxycarb KW - JEN0LSV1G9 KW - Index Medicus KW - Animals KW - Zea mays KW - Ants KW - Insect Control -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72077543?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+economic+entomology&rft.atitle=Red+imported+fire+ant+%28Hymenoptera%3A+Formicidae%29+control+with+a+corn+grit+bait+of+fenoxycarb+without+soybean+oil.&rft.au=Williams%2C+D+F%3BBanks%2C+W+A%3BVander+Meer%2C+R+K%3BLofgren%2C+C+S&rft.aulast=Williams&rft.aufirst=D&rft.date=1991-06-01&rft.volume=84&rft.issue=3&rft.spage=814&rft.isbn=&rft.btitle=&rft.title=Journal+of+economic+entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-10-09 N1 - Date created - 1991-10-09 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Soil erosion varies during the crop year AN - 52668179; 1997-075984 JF - International Summer Meeting - American Society of Agricultural Engineers AU - Meyer, L D AU - Harmon, W C AU - Anonymous Y1 - 1991/06// PY - 1991 DA - June 1991 EP - unpaginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991 KW - soils KW - hydrology KW - granulometry KW - erosion KW - rills KW - rainfall KW - agriculture KW - optimization KW - erosion rates KW - size distribution KW - runoff KW - sediments KW - interrill erosion KW - soil erosion KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52668179?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Summer+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Soil+erosion+varies+during+the+crop+year&rft.au=Meyer%2C+L+D%3BHarmon%2C+W+C%3BAnonymous&rft.aulast=Meyer&rft.aufirst=L&rft.date=1991-06-01&rft.volume=1991&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Summer+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international summer meeting of the American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 12 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Paper No. 91-2015 N1 - Last updated - 2012-06-07 N1 - CODEN - #03997 N1 - SubjectsTermNotLitGenreText - agriculture; erosion; erosion rates; granulometry; hydrology; interrill erosion; land use; optimization; rainfall; rills; runoff; sediments; size distribution; soil erosion; soils ER - TY - JOUR T1 - Effect of time in system on water erosion parameters with ridge tillage AN - 52666616; 1997-075986 JF - International Summer Meeting - American Society of Agricultural Engineers AU - Norton, L D AU - Brown, L C AU - Anonymous Y1 - 1991/06// PY - 1991 DA - June 1991 EP - unpaginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991 KW - United States KW - soils KW - hydrology KW - experimental studies KW - erosion KW - shear stress KW - rainfall KW - drainage KW - agriculture KW - suspended materials KW - erosion rates KW - simulation KW - preventive measures KW - case studies KW - transport KW - Clinton County Ohio KW - tillage KW - soil erosion KW - erodibility KW - land use KW - Ohio KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52666616?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Summer+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Effect+of+time+in+system+on+water+erosion+parameters+with+ridge+tillage&rft.au=Norton%2C+L+D%3BBrown%2C+L+C%3BAnonymous&rft.aulast=Norton&rft.aufirst=L&rft.date=1991-06-01&rft.volume=1991&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Summer+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international summer meeting of the American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 15 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Paper No. 91-2017 N1 - Last updated - 2012-06-07 N1 - CODEN - #03997 N1 - SubjectsTermNotLitGenreText - agriculture; case studies; Clinton County Ohio; drainage; erodibility; erosion; erosion rates; experimental studies; hydrology; land use; Ohio; preventive measures; rainfall; shear stress; simulation; soil erosion; soils; suspended materials; tillage; transport; United States ER - TY - JOUR T1 - Watertable management and water quality research in Ohio AN - 52664402; 1997-075991 JF - International Summer Meeting - American Society of Agricultural Engineers AU - Fausey, Norman R AU - Ward, Brown C AU - Brown, Larry C AU - Anonymous Y1 - 1991/06// PY - 1991 DA - June 1991 EP - unpaginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991 KW - United States KW - protection KW - hydrology KW - aquifer vulnerability KW - water quality KW - concentration KW - drainage KW - agriculture KW - water management KW - research KW - irrigation KW - ground water KW - aquifers KW - water table KW - Ohio State University KW - agrochemicals KW - runoff KW - sediments KW - shallow aquifers KW - nitrate ion KW - mobility KW - soil management KW - Ohio KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52664402?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Summer+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Watertable+management+and+water+quality+research+in+Ohio&rft.au=Fausey%2C+Norman+R%3BWard%2C+Brown+C%3BBrown%2C+Larry+C%3BAnonymous&rft.aulast=Fausey&rft.aufirst=Norman&rft.date=1991-06-01&rft.volume=1991&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Summer+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international summer meeting of the American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - SuppNotes - Paper No. 91-2024 N1 - Last updated - 2012-06-07 N1 - CODEN - #03997 N1 - SubjectsTermNotLitGenreText - agriculture; agrochemicals; aquifer vulnerability; aquifers; concentration; drainage; ground water; hydrology; irrigation; mobility; nitrate ion; Ohio; Ohio State University; protection; research; runoff; sediments; shallow aquifers; soil management; United States; water management; water quality; water table ER - TY - JOUR T1 - Aggregate stability of an eroded and desurfaced Typic Arguistoll AN - 50564883; 1991-036437 JF - Soil Science Society of America Journal AU - Gollany, H T AU - Schumacher, T E AU - Evenson, P D AU - Lindstrom, M J AU - Lemme, G D Y1 - 1991/06// PY - 1991 DA - June 1991 SP - 811 EP - 816 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 3 SN - 0361-5995, 0361-5995 KW - United States KW - soils KW - Lake County South Dakota KW - physical properties KW - soil surveys KW - surveys KW - properties KW - Madison South Dakota KW - Mollisols KW - South Dakota KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50564883?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Aggregate+stability+of+an+eroded+and+desurfaced+Typic+Arguistoll&rft.au=Gollany%2C+H+T%3BSchumacher%2C+T+E%3BEvenson%2C+P+D%3BLindstrom%2C+M+J%3BLemme%2C+G+D&rft.aulast=Gollany&rft.aufirst=H&rft.date=1991-06-01&rft.volume=55&rft.issue=3&rft.spage=811&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1991-01-01 N1 - Number of references - 31 N1 - PubXState - WI N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - Lake County South Dakota; Madison South Dakota; Mollisols; physical properties; properties; soil surveys; soils; South Dakota; surveys; United States ER - TY - JOUR T1 - Sodium-calcium exchange with anion exclusion and weathering corrections AN - 50558307; 1991-036431 JF - Soil Science Society of America Journal AU - Amrhein, C AU - Suarez, D L Y1 - 1991/06// PY - 1991 DA - June 1991 SP - 698 EP - 706 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 3 SN - 0361-5995, 0361-5995 KW - soils KW - calcium KW - Torriorthents KW - alkaline earth metals KW - metals KW - alkali metals KW - ion exchange KW - Torifluvents KW - sodium KW - geochemistry KW - 02C:Geochemistry of rocks, soils, and sediments KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50558307?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Sodium-calcium+exchange+with+anion+exclusion+and+weathering+corrections&rft.au=Amrhein%2C+C%3BSuarez%2C+D+L&rft.aulast=Amrhein&rft.aufirst=C&rft.date=1991-06-01&rft.volume=55&rft.issue=3&rft.spage=698&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1991-01-01 N1 - Number of references - 43 N1 - PubXState - WI N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - alkali metals; alkaline earth metals; calcium; geochemistry; ion exchange; metals; sodium; soils; Torifluvents; Torriorthents ER - TY - JOUR T1 - Organic polymers' effect on soil shear strength and detachments by single raindrops AN - 50558062; 1991-036436 JF - Soil Science Society of America Journal AU - Barry, P V AU - Stott, D E AU - Turco, R F AU - Bradford, J M Y1 - 1991/06// PY - 1991 DA - June 1991 SP - 799 EP - 804 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 3 SN - 0361-5995, 0361-5995 KW - soils KW - organic materials KW - shear strength KW - organic compounds KW - rainfall KW - effects KW - properties KW - polymers KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50558062?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Organic+polymers%27+effect+on+soil+shear+strength+and+detachments+by+single+raindrops&rft.au=Barry%2C+P+V%3BStott%2C+D+E%3BTurco%2C+R+F%3BBradford%2C+J+M&rft.aulast=Barry&rft.aufirst=P&rft.date=1991-06-01&rft.volume=55&rft.issue=3&rft.spage=799&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1991-01-01 N1 - Number of references - 39 N1 - PubXState - WI N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - effects; organic compounds; organic materials; polymers; properties; rainfall; shear strength; soils ER - TY - JOUR T1 - Kinetics of sulfate retention on soil as affected by solution pH and concentration AN - 50557998; 1991-036430 JF - Soil Science Society of America Journal AU - Schnabel, R R AU - Potter, R M Y1 - 1991/06// PY - 1991 DA - June 1991 SP - 693 EP - 698 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 3 SN - 0361-5995, 0361-5995 KW - soils KW - sulfate ion KW - Ultisols KW - kinetics KW - Hapludults KW - geochemistry KW - pH KW - 02C:Geochemistry of rocks, soils, and sediments KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50557998?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Kinetics+of+sulfate+retention+on+soil+as+affected+by+solution+pH+and+concentration&rft.au=Schnabel%2C+R+R%3BPotter%2C+R+M&rft.aulast=Schnabel&rft.aufirst=R&rft.date=1991-06-01&rft.volume=55&rft.issue=3&rft.spage=693&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1991-01-01 N1 - Number of references - 19 N1 - PubXState - WI N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - geochemistry; Hapludults; kinetics; pH; soils; sulfate ion; Ultisols ER - TY - JOUR T1 - Soil Water Capacity Prediction AN - 19097458; 9200821 AB - Wet soils, those with low-tension water, are defined as soils holding water at a tension of 10 hPa or less. Data from soil clods equilibrated at 5 hPa absorption tensions were used to develop a regression equation for predicting the water contents of wet soils. A test using a different set of non-correlated data showed good agreement between results as predicted by the equation and measured values of soil water at 5 hPa. Soil clods equilibrated at 5 hPa tension held water that approximated the water quantity held after free wetting. (Author's abstract) JF - Geoderma GEDMAB, Vol. 49, No. 1/2, p 77-81, June 1991. 1 fig, 2 ref. AU - Berdanier, C R AU - Ross, S J AU - Grossman, R B AD - South National Technical Center, Soil Conservation Service, Department of Agriculture, Fort Worth, TX Y1 - 1991/06// PY - 1991 DA - Jun 1991 KW - Water Resources Abstracts KW - *Soil moisture retention KW - *Soil water KW - *Soil water potential KW - Absorption KW - Regression analysis KW - Statistical analysis KW - Tension KW - SW 0845:Water in soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19097458?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Soil+Water+Capacity+Prediction&rft.au=Berdanier%2C+C+R%3BRoss%2C+S+J%3BGrossman%2C+R+B&rft.aulast=Berdanier&rft.aufirst=C&rft.date=1991-06-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Comparative fate of the tritiated trichothecene mycotoxin, T-2 toxin, in chickens and ducks. AN - 80693438; 1852689 AB - A tritiated preparation of the trichothecene mycotoxin, T-2 toxin, was administered as a single oral dose to 21-day-old male broiler (Hubbard x Hubbard) chickens and White Pekin ducks. There were few significant differences between the two species in metabolism, tissue retention, and excretion of T-2 toxin and its metabolites. On the basis of the data obtained, the differences in toxicological sensitivity to T-2 toxin known to exist between these two species cannot likely be attributed to differences in the metabolism or elimination of T-2 toxin from the body. JF - Poultry science AU - Giroir, L E AU - Ivie, G W AU - Huff, W E AD - USDA, Food Animal Protection Research Laboratory, College Station, Texas 77845. Y1 - 1991/05// PY - 1991 DA - May 1991 SP - 1138 EP - 1143 VL - 70 IS - 5 SN - 0032-5791, 0032-5791 KW - T-2 Toxin KW - I3FL5NM3MO KW - Index Medicus KW - Animals KW - Gizzard, Avian -- metabolism KW - Muscles -- metabolism KW - Chromatography, Thin Layer KW - Tissue Distribution KW - Male KW - Drug Residues -- pharmacokinetics KW - T-2 Toxin -- chemistry KW - T-2 Toxin -- pharmacokinetics KW - Ducks -- metabolism KW - Chickens -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80693438?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Poultry+science&rft.atitle=Comparative+fate+of+the+tritiated+trichothecene+mycotoxin%2C+T-2+toxin%2C+in+chickens+and+ducks.&rft.au=Giroir%2C+L+E%3BIvie%2C+G+W%3BHuff%2C+W+E&rft.aulast=Giroir&rft.aufirst=L&rft.date=1991-05-01&rft.volume=70&rft.issue=5&rft.spage=1138&rft.isbn=&rft.btitle=&rft.title=Poultry+science&rft.issn=00325791&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-08-20 N1 - Date created - 1991-08-20 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - A novel approach to analysis of transcriptional regulation in human cells: initial application to melanocytes and melanoma cells. AN - 80540857; 1850774 AB - An assay system for transcriptional profile analysis of cultured eukaryotic cells has been developed to simultaneously handle multiple samples in a rapid, sensitive, and internally controlled manner. The methodology incorporates a microtiter plate assay system, a rapid cell-harvest enzyme-assay technique, and the bacterial reporter genes beta-glucuronidase and beta-galactosidase. We demonstrate, using beta-actin and SV40 (late) transcription promoting sequences, that this technically refined microtiter-triton-lysate (MTL) assay methodology can readily differentiate between the transcriptional states of human melanocytes before and after pharmacologic stimulation and malignantly transformed versus normal cell environments. Differences in the transcriptional environments are revealed by the relative expression of transcription element probes. The transcriptional activity ratio of the beta-actin compared to the SV40 late transcription promoting sequences was approximately 1:2 in primary cultured melanocytes, 2:1 in 12-0-tetradecanoyl phorbol-13-acetate (TPA)-treated melanocytes and 1:4 in the Tang melanoma cell line. Because this MTL assay methodology can accommodate a panel of transcription element probes, we anticipate that the resultant transcriptional profiles will prove useful in deciphering the diverse transcriptional changes that occur within normally regulated and malignantly transformed cells. JF - The Journal of investigative dermatology AU - Grichnik, J M AU - Gilchrest, B A AD - United States Department of Agriculture Human Nutrition Research Center on Aging, Tufts University, Boston, Massachusetts 02111. Y1 - 1991/05// PY - 1991 DA - May 1991 SP - 742 EP - 746 VL - 96 IS - 5 SN - 0022-202X, 0022-202X KW - Actins KW - 0 KW - beta-Galactosidase KW - EC 3.2.1.23 KW - Glucuronidase KW - EC 3.2.1.31 KW - Tetradecanoylphorbol Acetate KW - NI40JAQ945 KW - Index Medicus KW - Tumor Cells, Cultured KW - Cells, Cultured KW - Simian virus 40 -- genetics KW - Humans KW - Tetradecanoylphorbol Acetate -- pharmacology KW - Glucuronidase -- analysis KW - beta-Galactosidase -- analysis KW - Actins -- pharmacology KW - Melanocytes -- metabolism KW - Transcription, Genetic KW - Melanoma -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80540857?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Journal+of+investigative+dermatology&rft.atitle=A+novel+approach+to+analysis+of+transcriptional+regulation+in+human+cells%3A+initial+application+to+melanocytes+and+melanoma+cells.&rft.au=Grichnik%2C+J+M%3BGilchrest%2C+B+A&rft.aulast=Grichnik&rft.aufirst=J&rft.date=1991-05-01&rft.volume=96&rft.issue=5&rft.spage=742&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+investigative+dermatology&rft.issn=0022202X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-05-31 N1 - Date created - 1991-05-31 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Chronic diuretic therapy with moderate doses of triamterene is not associated with folate deficiency. AN - 80528240; 2019791 AB - The diuretic drug triamterene has previously been shown to be a competitive inhibitor of folate absorption in the rat intestine (J Lab Clin Med 1986;108:272-6). We therefore investigated whether human subjects who are taking the drug on a long-term basis are at increased risk of folate deficiency. In each of two free-living populations, a study was performed to compare the folate status of triamterene users with those not taking the drug. The first population consisted of 272 elderly individuals not living in institutions who were participants in a nutrition status survey and who were taking a variety of antihypertensive medications; 32 of these individuals were daily users of triamterene. The hemoglobin concentration, red blood cell (RBC) count, and mean corpuscular volume (MCV) values were not significantly different between the triamterene users and nonusers. The female triamterene users had a slightly higher serum folate level than the female nonusers (p less than 0.04); a similar pattern was observed among the men, although the difference was not statistically significant. The second population consisted of 27 individuals attending a hypertension clinic; 18 subjects were taking 50 to 150 mg of triamterene per day and nine were taking antihypertensive drugs other than triamterene. The hemoglobin concentration, RBC count, MCV, serum folate values, and RBC folate values were found to not differ significantly between the triamterene users and the hypertensive controls (p greater than 0.05). These data suggest that chronic triamterene administration in individuals not living in institutions, at the doses examined in this study, is not associated with indications of folate deficiency. JF - The Journal of laboratory and clinical medicine AU - Mason, J B AU - Zimmerman, J AU - Otradovec, C L AU - Selhub, J AU - Rosenberg, I H AD - Bioavailability Laboratory, USDA Human Nutrition Research Center on Aging, Tufts University, Boston. Y1 - 1991/05// PY - 1991 DA - May 1991 SP - 365 EP - 369 VL - 117 IS - 5 SN - 0022-2143, 0022-2143 KW - Triamterene KW - WS821Z52LQ KW - Abridged Index Medicus KW - Index Medicus KW - Dose-Response Relationship, Drug KW - Humans KW - Aged KW - Male KW - Hypertension -- metabolism KW - Female KW - Triamterene -- administration & dosage KW - Triamterene -- adverse effects KW - Folic Acid Deficiency -- chemically induced UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80528240?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Journal+of+laboratory+and+clinical+medicine&rft.atitle=Chronic+diuretic+therapy+with+moderate+doses+of+triamterene+is+not+associated+with+folate+deficiency.&rft.au=Mason%2C+J+B%3BZimmerman%2C+J%3BOtradovec%2C+C+L%3BSelhub%2C+J%3BRosenberg%2C+I+H&rft.aulast=Mason&rft.aufirst=J&rft.date=1991-05-01&rft.volume=117&rft.issue=5&rft.spage=365&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+laboratory+and+clinical+medicine&rft.issn=00222143&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-05-28 N1 - Date created - 1991-05-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Remote sensing and landslide hazard assessment AN - 50517090; 1991-058450 JF - Proceedings of the Thematic Conference on Geologic Remote Sensing AU - McKean, J AU - Buechel, S AU - Gaydos, L J AU - Rogers, Robert H Y1 - 1991/05// PY - 1991 DA - May 1991 SP - 729 EP - 742 PB - Environmental Research Institute of Michigan, Ann Arbor, MI VL - 8 SN - 1067-0106, 1067-0106 KW - United States KW - geophysical surveys KW - geologic hazards KW - debris flows KW - San Francisco California KW - California KW - San Francisco County California KW - landslides KW - engineering geology KW - mass movements KW - surveys KW - risk assessment KW - applications KW - slope stability KW - San Mateo County California KW - remote sensing KW - 30:Engineering geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50517090?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Thematic+Conference+on+Geologic+Remote+Sensing&rft.atitle=Remote+sensing+and+landslide+hazard+assessment&rft.au=McKean%2C+J%3BBuechel%2C+S%3BGaydos%2C+L+J%3BRogers%2C+Robert+H&rft.aulast=McKean&rft.aufirst=J&rft.date=1991-05-01&rft.volume=8&rft.issue=&rft.spage=729&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Thematic+Conference+on+Geologic+Remote+Sensing&rft.issn=10670106&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Eighth thematic conference on Geologic remote sensing; exploration, engineering and environment N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1991-01-01 N1 - Number of references - 21 N1 - PubXState - MI N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - #03135 N1 - SubjectsTermNotLitGenreText - applications; California; debris flows; engineering geology; geologic hazards; geophysical surveys; landslides; mass movements; remote sensing; risk assessment; San Francisco California; San Francisco County California; San Mateo County California; slope stability; surveys; United States ER - TY - JOUR T1 - Enzymological evidence for separate pathways for aflatoxin B1 and B2 biosynthesis. AN - 80536891; 1902378 AB - Aflatoxins B1 (AFB1) and B2 (AFB2) are biologically active secondary metabolites of Aspergillus flavus and Aspergillus parasiticus. These toxins are synthesized by the fungi from pathway precursors: sterigmatocystin (ST)----O-methylsterigmatocystin (OMST)----AFB1; dihydrosterigmatocystin (DHST)----dihydro-O-methylsterigmatocystin (DHOMST)----AFB2. The late stages of AFB1 synthesis are carried out by two enzyme activities, a methyltransferase (MT) (ST----OMST), and an oxidoreductase (OR) (OMST----AFB1). Properties of the purified MT have been identified in a previous investigation [Bhatnagar et al. (1988) Prep. Biochem. 18, 321]. In the current study, the OR was partially purified (150-fold of specific activity) from fungal cell-free extracts and characterized with extended investigation of the late stages of AFB1 and AFB2 synthesis. Whole cells of an isolate of A. flavus (SRRC 141), which produce only AFB2, were able to produce AFB1 in ST and OMST feeding studies; the results suggested that the enzymes involved in AFB2 biosynthesis also carry out AFB1 synthesis. Substrate competition experiments carried out with the OR showed that an increasing concentration of either OMST or DHOMST in the presence of a fixed, nonsaturating concentration of either DHOMST or OMST, respectively, resulted in a decline in production of one aflatoxin (B1 or B2) with a corresponding increase in the synthesis of the other toxin (B2 or B1). OMST was a preferred substrate (Km, 1.2 microM) for the oxidoreductase as compared to DHOMST (Km, 13.4 microM). Similar, substrate competition experiments showed that ST (Km, 2.0 microM) was a preferred substrate over DHST (Km, 22.5 microM) for a homogeneous MT.(ABSTRACT TRUNCATED AT 250 WORDS) JF - Biochemistry AU - Bhatnagar, D AU - Cleveland, T E AU - Kingston, D G AD - Southern Regional Research Center, U.S. Department of Agriculture/Agricultural Research Service, New Orleans, Louisiana 70179. Y1 - 1991/04/30/ PY - 1991 DA - 1991 Apr 30 SP - 4343 EP - 4350 VL - 30 IS - 17 SN - 0006-2960, 0006-2960 KW - Aflatoxins KW - 0 KW - aflatoxin B2 KW - 7SKR7S646P KW - Aflatoxin B1 KW - 9N2N2Y55MH KW - Oxidoreductases KW - EC 1.- KW - Methyltransferases KW - EC 2.1.1.- KW - Index Medicus KW - Kinetics KW - Binding, Competitive KW - Chromatography, Liquid KW - Aflatoxins -- biosynthesis KW - Aspergillus -- enzymology KW - Oxidoreductases -- metabolism KW - Methyltransferases -- metabolism KW - Aspergillus -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80536891?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemistry&rft.atitle=Enzymological+evidence+for+separate+pathways+for+aflatoxin+B1+and+B2+biosynthesis.&rft.au=Bhatnagar%2C+D%3BCleveland%2C+T+E%3BKingston%2C+D+G&rft.aulast=Bhatnagar&rft.aufirst=D&rft.date=1991-04-30&rft.volume=30&rft.issue=17&rft.spage=4343&rft.isbn=&rft.btitle=&rft.title=Biochemistry&rft.issn=00062960&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-05-31 N1 - Date created - 1991-05-31 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Immunity induced in rats vaccinated with toxoid prepared from heat-labile toxin produced by Pasteurella multocida serogroup D. AN - 80660754; 2063548 AB - Rats were vaccinated with a toxoid (D-toxoid) prepared from purified heat-labile toxin (D-toxin) produced by Pasteurella multocida serogroup D. Vaccination of rats with D-toxoid prevented death and other effects of D-toxin (hepatic necrosis, development of elevated leukocyte counts, lymphopenia, neutrophilia, and elevated complement titers) that occurred in phosphate buffered saline (PBS)-vaccinated control rats. JF - Veterinary microbiology AU - Thurston, J R AU - Rimler, R B AU - Ackermann, M R AU - Cheville, N F AU - Sacks, J M AD - United States Department of Agriculture, Agricultural Research Service, Ames, IA 50010. Y1 - 1991/04// PY - 1991 DA - April 1991 SP - 169 EP - 174 VL - 27 IS - 2 SN - 0378-1135, 0378-1135 KW - Bacterial Proteins KW - 0 KW - Bacterial Toxins KW - Pasteurella multocida toxin KW - Toxoids KW - Complement System Proteins KW - 9007-36-7 KW - Index Medicus KW - Rats KW - Weight Gain -- drug effects KW - Regression Analysis KW - Animals KW - Liver -- drug effects KW - Dose-Response Relationship, Drug KW - Complement System Proteins -- analysis KW - Male KW - Leukocyte Count KW - Pasteurella -- immunology KW - Vaccination -- veterinary KW - Toxoids -- immunology KW - Bacterial Toxins -- toxicity KW - Bacterial Toxins -- immunology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80660754?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Veterinary+microbiology&rft.atitle=Immunity+induced+in+rats+vaccinated+with+toxoid+prepared+from+heat-labile+toxin+produced+by+Pasteurella+multocida+serogroup+D.&rft.au=Thurston%2C+J+R%3BRimler%2C+R+B%3BAckermann%2C+M+R%3BCheville%2C+N+F%3BSacks%2C+J+M&rft.aulast=Thurston&rft.aufirst=J&rft.date=1991-04-01&rft.volume=27&rft.issue=2&rft.spage=169&rft.isbn=&rft.btitle=&rft.title=Veterinary+microbiology&rft.issn=03781135&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-08-07 N1 - Date created - 1991-08-07 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Toxicity of extracts of tall larkspur (Delphinium barbeyi) in mice, hamsters, rats and sheep. AN - 80520618; 2017783 AB - Larkspur consumption is a major source of cattle losses on mountain and high plains rangelands of western North America. Our objective was to find a suitable laboratory animal model for measuring larkspur toxicity for subsequent use as an estimator of toxicity to cattle. The LD50 for subcutaneous injection and for oral gavage of extract from Delphinium barbeyi, a highly toxic and troublesome rangeland tall larkspur, was compared for mice, hamsters, rats and sheep. Similarity of primary clinical signs of poisoning and lack of significant difference in slope of the dose-response curves implied that the overall effect of the larkspur alkaloids was the same for all rodent species tested. Sheep were the most susceptible to poisoning by subcutaneous injection of larkspur extract with decreasing susceptibility in hamsters, mice and rats, but sheep had least susceptibility when comparing response to oral (by gavage) doses. Also, death occurred rapidly after gavage as compared with subcutaneous doses in mice, hamsters and rats, but was nearly the same for sheep. We conclude that, of the animals tested, mice would be the best choice for a bioassay of the toxicity of larkspur because of their high susceptibility, rapid response time, and small dose requirement. JF - Toxicology letters AU - Olsen, J D AU - Sisson, D V AD - United States Department of Agriculture, Poisonous Plant Research Laboratory, Logan, UT 84321. Y1 - 1991/04// PY - 1991 DA - April 1991 SP - 33 EP - 41 VL - 56 IS - 1-2 SN - 0378-4274, 0378-4274 KW - Plant Extracts KW - 0 KW - Index Medicus KW - Administration, Oral KW - Animals KW - Dose-Response Relationship, Drug KW - Sheep KW - Mice KW - Rats KW - Rats, Inbred Strains KW - Injections, Subcutaneous KW - Lethal Dose 50 KW - Mesocricetus KW - Time Factors KW - Species Specificity KW - Cricetinae KW - Plant Extracts -- toxicity KW - Plant Extracts -- poisoning KW - Plant Extracts -- administration & dosage UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80520618?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology+letters&rft.atitle=Toxicity+of+extracts+of+tall+larkspur+%28Delphinium+barbeyi%29+in+mice%2C+hamsters%2C+rats+and+sheep.&rft.au=Olsen%2C+J+D%3BSisson%2C+D+V&rft.aulast=Olsen&rft.aufirst=J&rft.date=1991-04-01&rft.volume=56&rft.issue=1-2&rft.spage=33&rft.isbn=&rft.btitle=&rft.title=Toxicology+letters&rft.issn=03784274&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-05-20 N1 - Date created - 1991-05-20 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Scaling water characteristics and hydraulic conductivity based on Gregson-Hector-McGowan approach AN - 50575031; 1991-032246 JF - Soil Science Society of America Journal AU - Ahuja, L R AU - Williams, R D Y1 - 1991/04// PY - 1991 DA - April 1991 SP - 308 EP - 319 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 2 SN - 0361-5995, 0361-5995 KW - soils KW - experimental studies KW - water regimes KW - properties KW - hydraulic conductivity KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50575031?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Scaling+water+characteristics+and+hydraulic+conductivity+based+on+Gregson-Hector-McGowan+approach&rft.au=Ahuja%2C+L+R%3BWilliams%2C+R+D&rft.aulast=Ahuja&rft.aufirst=L&rft.date=1991-04-01&rft.volume=55&rft.issue=2&rft.spage=308&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1991-01-01 N1 - Number of references - 25 N1 - PubXState - WI N1 - Document feature - illus. incl. 8 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - experimental studies; hydraulic conductivity; properties; soils; water regimes ER - TY - JOUR T1 - Soil detachment by shallow flow at low slopes AN - 50572207; 1991-032250 JF - Soil Science Society of America Journal AU - Nearing, M A AU - Bradford, J M AU - Parker, S C Y1 - 1991/04// PY - 1991 DA - April 1991 SP - 339 EP - 344 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 2 SN - 0361-5995, 0361-5995 KW - United States KW - soils KW - experimental studies KW - erosion KW - properties KW - Alfisols KW - Inceptisols KW - Haplaquepts KW - Indiana KW - detachability KW - surveys KW - hydraulic conductivity KW - soil erosion KW - Hapludalf KW - Ohio KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50572207?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Soil+detachment+by+shallow+flow+at+low+slopes&rft.au=Nearing%2C+M+A%3BBradford%2C+J+M%3BParker%2C+S+C&rft.aulast=Nearing&rft.aufirst=M&rft.date=1991-04-01&rft.volume=55&rft.issue=2&rft.spage=339&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1991-01-01 N1 - Number of references - 25 N1 - PubXState - WI N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - Alfisols; detachability; erosion; experimental studies; Haplaquepts; Hapludalf; hydraulic conductivity; Inceptisols; Indiana; Ohio; properties; soil erosion; soils; surveys; United States ER - TY - JOUR T1 - Soil detachment by single raindrops of varying kinetic energy AN - 50571312; 1991-032245 JF - Soil Science Society of America Journal AU - Sharma, P P AU - Gupta, S C AU - Rawls, W J Y1 - 1991/04// PY - 1991 DA - April 1991 SP - 301 EP - 307 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 2 SN - 0361-5995, 0361-5995 KW - soils KW - erosion KW - Ultisols KW - water erosion KW - properties KW - Hapludolls KW - physical properties KW - rainsplash KW - Pellusterts KW - detachability KW - raindrops KW - Chromusterts KW - Haploborolls KW - soil erosion KW - kinetics KW - Hapludults KW - Mollisols KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50571312?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Soil+detachment+by+single+raindrops+of+varying+kinetic+energy&rft.au=Sharma%2C+P+P%3BGupta%2C+S+C%3BRawls%2C+W+J&rft.aulast=Sharma&rft.aufirst=P&rft.date=1991-04-01&rft.volume=55&rft.issue=2&rft.spage=301&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1991-01-01 N1 - Number of references - 25 N1 - PubXState - WI N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - Chromusterts; detachability; erosion; Haploborolls; Hapludolls; Hapludults; kinetics; Mollisols; Pellusterts; physical properties; properties; raindrops; rainsplash; soil erosion; soils; Ultisols; water erosion ER - TY - JOUR T1 - The taxadjunct problem AN - 50562303; 1991-032256 JF - Soil Science Society of America Journal AU - Nettleton, W D AU - Brasher, B R AU - Borst, G Y1 - 1991/04// PY - 1991 DA - April 1991 SP - 421 EP - 427 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 2 SN - 0361-5995, 0361-5995 KW - United States KW - soils KW - Virginia KW - South Carolina KW - Ultisols KW - Aridisols KW - California KW - Oregon KW - North Carolina KW - classification KW - Arizona KW - soil surveys KW - surveys KW - Chromusterts KW - taxonomy KW - Nevada KW - Mollisols KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50562303?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=The+taxadjunct+problem&rft.au=Nettleton%2C+W+D%3BBrasher%2C+B+R%3BBorst%2C+G&rft.aulast=Nettleton&rft.aufirst=W&rft.date=1991-04-01&rft.volume=55&rft.issue=2&rft.spage=421&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1991-01-01 N1 - Number of references - 34 N1 - PubXState - WI N1 - Document feature - illus. incl. 8 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - Aridisols; Arizona; California; Chromusterts; classification; Mollisols; Nevada; North Carolina; Oregon; soil surveys; soils; South Carolina; surveys; taxonomy; Ultisols; United States; Virginia ER - TY - JOUR T1 - Ground water quality implications of soil conservation measures; an economic perspective AN - 50283955; 1994-011300 JF - Water Resources Bulletin AU - Setia, Parveen AU - Piper, Steven Y1 - 1991/04// PY - 1991 DA - April 1991 SP - 201 EP - 208 PB - American Water Resources Association, Herndon, VA VL - 27 IS - 2 SN - 0043-1370, 0043-1370 KW - United States KW - soils KW - water quality KW - migration KW - erosion KW - pollutants KW - herbicides KW - surface water KW - agriculture KW - pollution KW - mathematical models KW - ground water KW - Corn Belt KW - models KW - triazines KW - organic compounds KW - conservation KW - atrazine KW - runoff KW - economics KW - pesticides KW - leaching KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50283955?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Bulletin&rft.atitle=Ground+water+quality+implications+of+soil+conservation+measures%3B+an+economic+perspective&rft.au=Setia%2C+Parveen%3BPiper%2C+Steven&rft.aulast=Setia&rft.aufirst=Parveen&rft.date=1991-04-01&rft.volume=27&rft.issue=2&rft.spage=201&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Bulletin&rft.issn=00431370&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 21 N1 - PubXState - VA N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - WARBAQ N1 - SubjectsTermNotLitGenreText - agriculture; atrazine; conservation; Corn Belt; economics; erosion; ground water; herbicides; leaching; mathematical models; migration; models; organic compounds; pesticides; pollutants; pollution; runoff; soils; surface water; triazines; United States; water quality ER - TY - JOUR T1 - Forest Service photographs on laser video disc AN - 37181488; 1016888 JF - Agricultural history AU - Fish, Rick J AU - Fish, Rick J Y1 - 1991/04// PY - 1991 DA - Apr 1991 SP - 188 VL - 65 IS - 2 SN - 0002-1482, 0002-1482 KW - Photograph collections KW - Forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/37181488?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aibss&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=Agricultural+history&rft.atitle=Forest+Service+photographs+on+laser+video+disc&rft.au=Fish%2C+Rick+J&rft.aulast=Fish&rft.aufirst=Rick&rft.date=1991-04-01&rft.volume=65&rft.issue=2&rft.spage=188&rft.isbn=&rft.btitle=&rft.title=Agricultural+history&rft.issn=00021482&rft_id=info:doi/ LA - English DB - International Bibliography of the Social Sciences (IBSS) N1 - Date revised - 2013-06-12 N1 - Last updated - 2013-09-16 N1 - SubjectsTermNotLitGenreText - 9497; 5243 7197 8560 9511 4309 ER - TY - JOUR T1 - Dithyreanitrile: an unusual insect antifeedant from Dithyrea wislizenii. AN - 80490813; 2009944 AB - Dithyreanitrile, a novel sulfur-containing indole alkaloid, was isolated from the seeds of Dithyrea wislizenii (Cruciferae). Dithyreanitrile inhibits feeding of fall armyworm (Spodoptera frugiperda) and European corn borer (Ostrinia nubilalis) larvae. Dithyreanitrile, the first natural product with two sulfur atoms and a nitrile attached to the same carbon, was characterized by X-ray diffraction, spectroscopy, and chemical synthesis. JF - Experientia AU - Powell, R G AU - Mikolajczak, K L AU - Zilkowski, B W AU - Lu, H S AU - Mantus, E K AU - Clardy, J AD - USDA/ARS Northern Regional Research Center, Peoria, Illinois 61604. Y1 - 1991/03/15/ PY - 1991 DA - 1991 Mar 15 SP - 304 EP - 306 VL - 47 IS - 3 SN - 0014-4754, 0014-4754 KW - Alkaloids KW - 0 KW - dithyreanitrile KW - 128717-80-6 KW - Index Medicus KW - Animals KW - Seeds KW - X-Ray Diffraction KW - Magnetic Resonance Spectroscopy KW - Alkaloids -- toxicity KW - Alkaloids -- isolation & purification KW - Insects -- drug effects KW - Feeding Behavior -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80490813?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Experientia&rft.atitle=Dithyreanitrile%3A+an+unusual+insect+antifeedant+from+Dithyrea+wislizenii.&rft.au=Powell%2C+R+G%3BMikolajczak%2C+K+L%3BZilkowski%2C+B+W%3BLu%2C+H+S%3BMantus%2C+E+K%3BClardy%2C+J&rft.aulast=Powell&rft.aufirst=R&rft.date=1991-03-15&rft.volume=47&rft.issue=3&rft.spage=304&rft.isbn=&rft.btitle=&rft.title=Experientia&rft.issn=00144754&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-05-03 N1 - Date created - 1991-05-03 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - A deficiency of the homeotic complex of the beetle Tribolium. AN - 72779450; 11536480 AB - In Drosophila, the establishment of regional commitments along most of the anterior/posterior axis of the developing embryo depends on two clusters of homeotic genes: the Antennapedia complex (ANT-C) and the bithorax complex (BX-C). The red flour beetle has a single complex (HOM-C) representing the homologues of the ANT-C and BX-C in juxtaposition. Beetles trans-heterozygous for two particular HOM-C mutations spontaneously generate a large deficiency, presumably by an exchange within the common region of two overlapping inversions. Genetic and molecular results indicate that this deficiency spans at least the interval between the Deformed and abdominal-A homologues. In deficiency homozygous embryos, all gnathal, thoracic and abdominal segments develop antennal appendages, suggesting that a gene(s) has been deleted that acts to distinguish trunk from head. There is no evidence that beetles have a homologue of the segmentation gene fushi tarazu of similar genomic location and function. On the basis of the genetic tractability, convenient genome size and organization of Tribolium, and its relatively long phylogenetic divergence from Drosophila (>300 million years), we have integrated developmental genetic and molecular analyses of the HOM-C. We isolated about 70 mutations in the complex representing at least six complementation groups. The homeotic phenotypes of adults and lethal embryos lead us to believe that these beetle genes are homologous with the Drosophila genes indicated in Fig. 1 (see text). JF - Nature AU - Stuart, J J AU - Brown, S J AU - Beeman, R W AU - Denell, R E AD - USDA, US Grain Marketing Research Laboratory, Manhattan, Kansas 66502, USA. Y1 - 1991/03/07/ PY - 1991 DA - 1991 Mar 07 SP - 72 EP - 74 VL - 350 IS - 6313 SN - 0028-0836, 0028-0836 KW - Space life sciences KW - NASA Discipline Number 93-10 KW - NASA Discipline Cell Biology KW - NASA Discipline Developmental Biology KW - NASA Program NSCORT KW - Non-NASA Center KW - Phenotype KW - Animals KW - Larva -- genetics KW - Genes, Lethal -- genetics KW - Drosophila -- genetics KW - Mutation KW - Larva -- growth & development KW - Tribolium -- embryology KW - Genes, Homeobox -- physiology KW - Tribolium -- growth & development KW - Mutagenesis -- genetics KW - Tribolium -- genetics KW - Genes, Homeobox -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72779450?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature&rft.atitle=A+deficiency+of+the+homeotic+complex+of+the+beetle+Tribolium.&rft.au=Stuart%2C+J+J%3BBrown%2C+S+J%3BBeeman%2C+R+W%3BDenell%2C+R+E&rft.aulast=Stuart&rft.aufirst=J&rft.date=1991-03-07&rft.volume=350&rft.issue=6313&rft.spage=72&rft.isbn=&rft.btitle=&rft.title=Nature&rft.issn=00280836&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-08-10 N1 - Date created - 1995-08-10 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Determining organohalides in animal fats using gel permeation chromatographic cleanup: repeatability study. AN - 80624965; 2050618 AB - Evaluation of a previously published gel permeation chromatographic (GPC) procedure was undertaken to determine whether it can be used for additional organochlorine pesticides. After repeatability studies of many pesticides, the following compounds were approved for inclusion in the U.S. Department of Agriculture Domestic Residue Monitoring Program: coumaphos-S, stirophos, chlorpyrifos, ronnel, carbophenothion, chlorfenvinphos, phosalone, kepone, captan, linuron, and endosulfan I and II. Recoveries ranged from 54% for captan to 123% for ronnel. Ranges of CVs varied from 0-9.5% for carbophenothion to 7.1-47.7% for kepone. Although the minimum acceptable recovery of 50% was attained for all 12 pesticides, the anticipated CV of 20% was waived to include chlorpyrifos, endosulfan I and II, and kepone. For a multiresidue procedure involving approximately 40 compounds, these results were within the acceptable criteria. JF - Journal - Association of Official Analytical Chemists AU - Goodspeed, D P AU - Chestnut, L I AD - U.S. Department of Agriculture, Food Safety and Inspection Service, Science and Technology Western Laboratory, Alameda, CA 94501. PY - 1991 SP - 388 EP - 394 VL - 74 IS - 2 SN - 0004-5756, 0004-5756 KW - Fats KW - 0 KW - Hydrocarbons, Halogenated KW - Pesticide Residues KW - Index Medicus KW - Food Analysis -- methods KW - Animals KW - Reproducibility of Results KW - Chromatography, Gel KW - Calibration KW - Hydrocarbons, Halogenated -- analysis KW - Pesticide Residues -- analysis KW - Meat -- analysis KW - Fats -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80624965?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+-+Association+of+Official+Analytical+Chemists&rft.atitle=Determining+organohalides+in+animal+fats+using+gel+permeation+chromatographic+cleanup%3A+repeatability+study.&rft.au=Goodspeed%2C+D+P%3BChestnut%2C+L+I&rft.aulast=Goodspeed&rft.aufirst=D&rft.date=1991-03-01&rft.volume=74&rft.issue=2&rft.spage=388&rft.isbn=&rft.btitle=&rft.title=Journal+-+Association+of+Official+Analytical+Chemists&rft.issn=00045756&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-07-23 N1 - Date created - 1991-07-23 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Toxic effects of kojic acid in the diet of male broilers. AN - 80608438; 2047342 AB - The toxicological effects induced by the administration of kojic acid were characterized in young male broiler chickens (Hubbard x Peterson). The experimental design consisted of six dietary treatments of kojic acid (0, .5, 1, 2, 4, and 8 g/kg feed) and four replicates of 10 broilers per replicate. Kojic acid significantly (P less than .05) decreased growth rates at concentrations greater than 2 g basic acid/kg feed. Kojic acid in higher concentrations also significantly increased the relative weights of the proventriculus, gizzard, pancreas, and liver, and significantly decreased the relative weight of the bursa of Fabricius at necropsy (Day 21). Hematological changes included a significant increase in the number of red blood cells, a significant increase in packed-cell volume, and a significant decrease in mean corpuscular volume. Also occurring was a significant increase in the serum concentrations of total protein, albumin, cholesterol, and triglycerides. Hepatotoxicity of dietary kojic acid was evident through a significant increase in the activities of serum glutamic oxalacetic transaminase and creatine kinase and a significant decrease in the activity of alkaline phosphatase. A significant increase in serum uric acid concentration was indicative of nephrotoxicity, and a significant increase in serum glucose concentration was indicative of pancreatic toxicity. A significant decrease in colonic temperature was also observed. Because the toxic effects of kojic acid were only observed at concentrations greater than 2 g kojic acid/kg feed, this mycotoxin alone does not appear to pose a serious economic threat to the poultry industry. JF - Poultry science AU - Giroir, L E AU - Huff, W E AU - Kubena, L E AU - Harvey, R B AU - Elissalde, M H AU - Witzel, D A AU - Yersin, A G AU - Ivie, G W AD - USDA, Agricultural Research Service, Veterinary Toxicology and Entomology Research Laboratory, College Station, Texas 77840. Y1 - 1991/03// PY - 1991 DA - March 1991 SP - 499 EP - 503 VL - 70 IS - 3 SN - 0032-5791, 0032-5791 KW - Blood Proteins KW - 0 KW - Enzymes KW - Mycotoxins KW - Pyrones KW - kojic acid KW - 6K23F1TT52 KW - Index Medicus KW - Weight Gain -- drug effects KW - Animals KW - Enzymes -- blood KW - Animal Feed KW - Liver -- drug effects KW - Gizzard, Avian -- drug effects KW - Proventriculus -- drug effects KW - Pancreas -- drug effects KW - Bursa of Fabricius -- drug effects KW - Male KW - Blood Proteins -- drug effects KW - Organ Size -- drug effects KW - Chickens -- physiology KW - Pyrones -- toxicity KW - Chickens -- growth & development KW - Mycotoxins -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80608438?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Poultry+science&rft.atitle=Toxic+effects+of+kojic+acid+in+the+diet+of+male+broilers.&rft.au=Giroir%2C+L+E%3BHuff%2C+W+E%3BKubena%2C+L+E%3BHarvey%2C+R+B%3BElissalde%2C+M+H%3BWitzel%2C+D+A%3BYersin%2C+A+G%3BIvie%2C+G+W&rft.aulast=Giroir&rft.aufirst=L&rft.date=1991-03-01&rft.volume=70&rft.issue=3&rft.spage=499&rft.isbn=&rft.btitle=&rft.title=Poultry+science&rft.issn=00325791&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-07-15 N1 - Date created - 1991-07-15 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Development of a preliminary enzyme-linked immunosorbent assay for the herbicide trifluralin. AN - 80564611; 2032006 JF - Bulletin of environmental contamination and toxicology AU - Riggle, B AD - Central Great Plains Research Station, USDA-ARS, Akron, Colorado 80720. Y1 - 1991/03// PY - 1991 DA - March 1991 SP - 404 EP - 409 VL - 46 IS - 3 SN - 0007-4861, 0007-4861 KW - Herbicides KW - 0 KW - Indicators and Reagents KW - Pesticide Residues KW - Trifluralin KW - C8BX46QL7K KW - Index Medicus KW - Enzyme-Linked Immunosorbent Assay KW - Cross Reactions KW - Herbicides -- analysis KW - Pesticide Residues -- analysis KW - Trifluralin -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80564611?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+environmental+contamination+and+toxicology&rft.atitle=Development+of+a+preliminary+enzyme-linked+immunosorbent+assay+for+the+herbicide+trifluralin.&rft.au=Riggle%2C+B&rft.aulast=Riggle&rft.aufirst=B&rft.date=1991-03-01&rft.volume=46&rft.issue=3&rft.spage=404&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+environmental+contamination+and+toxicology&rft.issn=00074861&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-06-21 N1 - Date created - 1991-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Food Safety and Inspection Service initiatives for tissue residue reduction in meat and poultry. AN - 80546056; 2026528 JF - Journal of the American Veterinary Medical Association AU - Norcross, M A AU - Brown, J L AD - Food Safety and Inspection Service, US Department of Agriculture, Washington, DC 20250. Y1 - 1991/03/01/ PY - 1991 DA - 1991 Mar 01 SP - 819 EP - 824 VL - 198 IS - 5 SN - 0003-1488, 0003-1488 KW - Anti-Bacterial Agents KW - 0 KW - Growth Substances KW - Hormones KW - Pesticide Residues KW - Sulfonamides KW - Pentachlorophenol KW - D9BSU0SE4T KW - Index Medicus KW - United States KW - Sulfonamides -- analysis KW - Animals KW - Poultry KW - Hormones -- analysis KW - Anti-Bacterial Agents -- analysis KW - Pesticide Residues -- analysis KW - Pentachlorophenol -- analysis KW - Growth Substances -- analysis KW - Meat -- standards KW - Food Contamination -- prevention & control KW - Animals, Domestic -- metabolism KW - Drug Residues -- analysis KW - Meat -- analysis KW - Food Inspection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80546056?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Veterinary+Medical+Association&rft.atitle=Food+Safety+and+Inspection+Service+initiatives+for+tissue+residue+reduction+in+meat+and+poultry.&rft.au=Norcross%2C+M+A%3BBrown%2C+J+L&rft.aulast=Norcross&rft.aufirst=M&rft.date=1991-03-01&rft.volume=198&rft.issue=5&rft.spage=819&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Veterinary+Medical+Association&rft.issn=00031488&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-06-12 N1 - Date created - 1991-06-12 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Rapid preparation of pyrogen-free 2H2(18)O for human-nutrition studies. AN - 80466509; 2000811 AB - We describe a compact ultrafiltration system for the removal of pyrogens and bacteria from water labeled with the stable isotopes of deuterium and oxygen-18. The ultrafiltration system is constructed from readily available commercial components and can achieve complete removal of pyrogens and bacteria from 1L contaminated water within 30 min. By use of our procedure, loss of the isotopically labeled water by retention in the filtration system was minimal. The purified water is suitable for both oral and intravenous administration to healthy human subjects participating in nutrition studies. JF - The American journal of clinical nutrition AU - Wong, W W AU - Leggitt, J L AU - Clarke, L L AU - Klein, P D AD - USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston. Y1 - 1991/03// PY - 1991 DA - March 1991 SP - 585 EP - 586 VL - 53 IS - 3 SN - 0002-9165, 0002-9165 KW - Oxygen Isotopes KW - 0 KW - Pyrogens KW - Deuterium KW - AR09D82C7G KW - Abridged Index Medicus KW - Index Medicus KW - Humans KW - Isotope Labeling KW - Ultrafiltration -- instrumentation KW - Sterilization -- methods KW - Water Microbiology KW - Ultrafiltration -- methods KW - Water Pollution, Chemical -- prevention & control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80466509?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+American+journal+of+clinical+nutrition&rft.atitle=Rapid+preparation+of+pyrogen-free+2H2%2818%29O+for+human-nutrition+studies.&rft.au=Wong%2C+W+W%3BLeggitt%2C+J+L%3BClarke%2C+L+L%3BKlein%2C+P+D&rft.aulast=Wong&rft.aufirst=W&rft.date=1991-03-01&rft.volume=53&rft.issue=3&rft.spage=585&rft.isbn=&rft.btitle=&rft.title=The+American+journal+of+clinical+nutrition&rft.issn=00029165&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-04-10 N1 - Date created - 1991-04-10 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - A comparison of chloride, bromide, and sucrose dilution volumes in neonatal pigs. AN - 80459114; 1998011 AB - Use of 36Cl, 82Br, and [3H]sucrose to estimate extracellular water volume was evaluated in 14 piglets (7-14 days old). 36Cl and 82Br were distributed in approximately the same volume, but a period of 5-6 hr after injection was required to reach equilibrium in the neonatal pig. Dilution volumes calculated before equilibration (2-5 hr) for 36Cl (326 +/- 11 ml/kg) and 82Br (328 +/- 13 ml/kg) were different from equilibration (6-8 hr) phase volumes (356 +/- 13 ml/kg and 355 +/- 13 ml/kg, respectively; P less than 0.001). A 3-hr sample estimated the same volume distribution calculated by extrapolation of the 6- to 8-hr period because of the relationship between the two slopes of the plasma clearance curves. After the 82Br and 36Cl had achieved equilibration, each was distributed in a volume equivalent to total body chloride space (362 +/- 29 ml/kg) measured by neutron activation; no statistical differences were found (P = 0.6). The early equilibration phase measured a 10% smaller, faster exchangeable fraction of total body Cl. Sucrose dilution volume (332 +/- 19 ml/kg) required multiple plasma samples for extrapolation and measured a dilution volume 7% smaller (P less than 0.05) than total body chloride space. JF - Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.) AU - Mørkeberg, J C AU - Sheng, H P AU - Huggins, R A AD - United States Department of Agriculture, Agricultural Research Service, Department of Pediatrics and Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, Texas 77030. Y1 - 1991/03// PY - 1991 DA - March 1991 SP - 344 EP - 350 VL - 196 IS - 3 SN - 0037-9727, 0037-9727 KW - Chlorine KW - 4R7X1O2820 KW - Sucrose KW - 57-50-1 KW - Bromine KW - SBV4XY874G KW - Index Medicus KW - Swine KW - Animals KW - Plasma -- metabolism KW - Metabolic Clearance Rate KW - Urine -- chemistry KW - Extracellular Space -- metabolism KW - Bromine -- pharmacokinetics KW - Chlorine -- pharmacokinetics KW - Sucrose -- pharmacokinetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80459114?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Society+for+Experimental+Biology+and+Medicine.+Society+for+Experimental+Biology+and+Medicine+%28New+York%2C+N.Y.%29&rft.atitle=A+comparison+of+chloride%2C+bromide%2C+and+sucrose+dilution+volumes+in+neonatal+pigs.&rft.au=M%C3%B8rkeberg%2C+J+C%3BSheng%2C+H+P%3BHuggins%2C+R+A&rft.aulast=M%C3%B8rkeberg&rft.aufirst=J&rft.date=1991-03-01&rft.volume=196&rft.issue=3&rft.spage=344&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Society+for+Experimental+Biology+and+Medicine.+Society+for+Experimental+Biology+and+Medicine+%28New+York%2C+N.Y.%29&rft.issn=00379727&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-04-02 N1 - Date created - 1991-04-02 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Defining and Measuring Poverty in the Nonmetropolitan United States Using the Survey of Income and Program Participation AN - 60065635; 91X7880 AB - Data from the Survey of Income & Program Participation (SIPP), developed by the US Census Bureau to obtain information for evaluating government income programs, demonstrate how poverty definitions affect the reported extent of poverty in both metropolitan & rural areas. SIPP results since 1983 (N ranging from 11,000 to 19,900) indicate that whatever definition of poverty is used, nonmetropolitan areas have higher poverty rates, confirming Current Population Survey data that rural poverty is a problem severe enough to warrant special attention. It is noted that rural poor are more likely to be white, elderly, disabled, & married in comparison to their urban counterparts. 5 Tables, 1 Figure, 34 References. Adapted from the source document. JF - Social Indicators Research AU - Hoppe, Robert A AD - Economic Research Service US Dept Agriculture, 14th St & Independence Ave SW Washington DC 20005 Y1 - 1991/03// PY - 1991 DA - March 1991 SP - 123 EP - 151 VL - 24 IS - 2 SN - 0303-8300, 0303-8300 KW - US government income programs, poverty definition's impact, rural vs urban areas KW - census survey data KW - 1983 KW - Low Income Groups KW - Rural Urban Differences KW - Poverty KW - Government Policy KW - United States of America KW - Income Maintenance Programs KW - article KW - 0104: methodology and research technology; research methods KW - 2757: studies in poverty; studies in poverty UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/60065635?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Asocabs&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Social+Indicators+Research&rft.atitle=Defining+and+Measuring+Poverty+in+the+Nonmetropolitan+United+States+Using+the+Survey+of+Income+and+Program+Participation&rft.au=Hoppe%2C+Robert+A&rft.aulast=Hoppe&rft.aufirst=Robert&rft.date=1991-03-01&rft.volume=24&rft.issue=2&rft.spage=123&rft.isbn=&rft.btitle=&rft.title=Social+Indicators+Research&rft.issn=03038300&rft_id=info:doi/ LA - English DB - Sociological Abstracts N1 - Date revised - 2007-10-30 N1 - Last updated - 2016-09-28 N1 - CODEN - SINRDZ N1 - SubjectsTermNotLitGenreText - Income Maintenance Programs; United States of America; Government Policy; Poverty; Low Income Groups; Rural Urban Differences ER - TY - JOUR T1 - The pattern of cadmium in the environment of five Minnesota cities AN - 51049326; 1997-026624 AB - Soil samples were collected from Minneapolis, St Paul, Duluth, St Cloud and Rochester. The results show fundamental differences in soil Cd among cities. Cd levels for the combined data for all cities and communities in Minneapolis seem to be directly related to traffic flow, though Cd levels around house sides and in gardens do not follow patterns of traffic flow. St Paul has higher Cd values to the E of the city than to the W, probably related to the location of the sewage sludge incinerator. The study provides essential urban background information about both the basic environmental patterns of Cd, as well as processes which seem to operate to cause those patterns. JF - Environmental Geochemistry and Health AU - Mielke, H W AU - Adams, J L AU - Chaney, R L AU - Mielke, P W, Jr AU - Ravikumar, V C Y1 - 1991/03// PY - 1991 DA - March 1991 SP - 29 EP - 34 PB - Science and Technology Letters, Kew VL - 13 IS - 1 SN - 0269-4042, 0269-4042 KW - United States KW - soils KW - Minnesota KW - pollutants KW - Duluth Minnesota KW - Saint Paul Minnesota KW - background level KW - Rochester Minnesota KW - pollution KW - Saint Louis County Minnesota KW - incinerators KW - Minneapolis Minnesota KW - Ramsey County Minnesota KW - metals KW - industrial waste KW - cadmium KW - surveys KW - Saint Cloud Minnesota KW - waste disposal KW - Hennepin County Minnesota KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51049326?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Geochemistry+and+Health&rft.atitle=The+pattern+of+cadmium+in+the+environment+of+five+Minnesota+cities&rft.au=Mielke%2C+H+W%3BAdams%2C+J+L%3BChaney%2C+R+L%3BMielke%2C+P+W%2C+Jr%3BRavikumar%2C+V+C&rft.aulast=Mielke&rft.aufirst=H&rft.date=1991-03-01&rft.volume=13&rft.issue=1&rft.spage=29&rft.isbn=&rft.btitle=&rft.title=Environmental+Geochemistry+and+Health&rft.issn=02694042&rft_id=info:doi/ L2 - http://www.springerlink.com/content/100162/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1997-01-01 N1 - Number of references - 17 N1 - Document feature - illus. incl. 4 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - background level; cadmium; Duluth Minnesota; Hennepin County Minnesota; incinerators; industrial waste; metals; Minneapolis Minnesota; Minnesota; pollutants; pollution; Ramsey County Minnesota; Rochester Minnesota; Saint Cloud Minnesota; Saint Louis County Minnesota; Saint Paul Minnesota; soils; surveys; United States; waste disposal ER - TY - JOUR T1 - Spatial sensitivity of time-domain reflectometry; discussion and reply AN - 50591574; 1991-024738 JF - Soil Science AU - Knight, J H AU - Baker, John M AU - Lascano, R J Y1 - 1991/03// PY - 1991 DA - March 1991 SP - 254 EP - 257 PB - Williams & Wilkins Company, Baltimore, MD VL - 151 IS - 3 SN - 0038-075X, 0038-075X KW - soils KW - analysis KW - instruments KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50591574?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science&rft.atitle=Spatial+sensitivity+of+time-domain+reflectometry%3B+discussion+and+reply&rft.au=Knight%2C+J+H%3BBaker%2C+John+M%3BLascano%2C+R+J&rft.aulast=Knight&rft.aufirst=J&rft.date=1991-03-01&rft.volume=151&rft.issue=3&rft.spage=254&rft.isbn=&rft.btitle=&rft.title=Soil+Science&rft.issn=0038075X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1991-01-01 N1 - Number of references - 6 N1 - PubXState - MD N1 - Document feature - illus. N1 - SuppNotes - For reference to original see Baker, J. M., and Lascano, R. J., Soil Sci., Vol. 147, p. 378-384, 1989 N1 - Last updated - 2012-06-07 N1 - CODEN - SOSCAK N1 - SubjectsTermNotLitGenreText - analysis; instruments; soils ER - TY - JOUR T1 - Soil forming processes in soils with cryic and frigid soil temperature regimes in Idaho AN - 50458227; 1992-025722 JF - Proceedings - International Soil Correlation Meeting (ISCOM) AU - Fosberg, Maynard A AU - Falen, A L AU - Blank, R R AU - Hipple, K W A2 - Kimble, J. M. Y1 - 1991/03// PY - 1991 DA - March 1991 SP - 43 EP - 53 PB - Soil Conservation Service, USDA, [Lincoln, NE] VL - 6 KW - United States KW - soils KW - morphology KW - Idaho KW - pedogenesis KW - parent materials KW - properties KW - climate KW - Aridisols KW - temperature KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50458227?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+-+International+Soil+Correlation+Meeting+%28ISCOM%29&rft.atitle=Soil+forming+processes+in+soils+with+cryic+and+frigid+soil+temperature+regimes+in+Idaho&rft.au=Fosberg%2C+Maynard+A%3BFalen%2C+A+L%3BBlank%2C+R+R%3BHipple%2C+K+W&rft.aulast=Fosberg&rft.aufirst=Maynard&rft.date=1991-03-01&rft.volume=6&rft.issue=&rft.spage=43&rft.isbn=&rft.btitle=&rft.title=Proceedings+-+International+Soil+Correlation+Meeting+%28ISCOM%29&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Sixth international soil correlation meeting (VI ISCOM); Characterization, classification, and utilization of cold Aridisols and Vertisols; Montana, Idaho, and Wyoming, United States, and Saskatchewan, Canada N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1992-01-01 N1 - Number of references - 33 N1 - PubXState - NE] N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - #03237 N1 - SubjectsTermNotLitGenreText - Aridisols; climate; Idaho; morphology; parent materials; pedogenesis; properties; soils; temperature; United States ER - TY - JOUR T1 - Wall and Corner Fire Tests on selected Wood Products AN - 21326354; 11633143 AB - As part of a fire growth program to develop and validate a com partment fire model, several bench-scale and full-scale tests were conducted. This paper reports the full-scale wall and corner test results of step 2 of this study. A room fire test following the ASTM proposed standard specifications was used for these full-scale tests. In step 1, we investigated the combination of factors for evaluating wood products in wall and corner fire tests. They were the position of the ignition source, power output from the source, and combination of lining materials. We concluded from the sensitivity study (step 1) that for wall and corner fire tests, a burner output program consisting of 40 kW expo sure for 5 min followed by 160 kW exposure for 5 min was the most informative. In this paper, step 2 of the research program, results from wall and corner tests using six wood materials having different flame spread indices (according to ASTM E 84) are given. The two-step burner setting was confirmed to be better than a constant setting for evaluating wood materials. The relative perfor mance of these materials was in line with their ASTM E 84 flame spread prop erties. Smoke release rates obtained by white-light and laser systems showed excellent agreement. Only rate of heat and smoke release, selected tempera tures, and heat fluxes are reported. The complete reduced data set will be pub lished later. JF - Journal of Fire Sciences AU - Tran, Hao C AU - Janssens, Marc L AD - USDA Forest Service Forest Products Laboratory One Gifford Pinchot Drive Madison, WI 53705-2398 Y1 - 1991/03// PY - 1991 DA - Mar 1991 SP - 106 EP - 124 PB - Sage Publications Ltd., 6 Bonhill St. London EC2A 4PU UK VL - 9 IS - 2 SN - 0734-9041, 0734-9041 KW - Health & Safety Science Abstracts KW - Fires KW - Sensitivity KW - Wood KW - Smoke KW - Lasers KW - Research programs KW - H 7000:Fire Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21326354?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Fire+Sciences&rft.atitle=Wall+and+Corner+Fire+Tests+on+selected+Wood+Products&rft.au=Tran%2C+Hao+C%3BJanssens%2C+Marc+L&rft.aulast=Tran&rft.aufirst=Hao&rft.date=1991-03-01&rft.volume=9&rft.issue=2&rft.spage=106&rft.isbn=&rft.btitle=&rft.title=Journal+of+Fire+Sciences&rft.issn=07349041&rft_id=info:doi/10.1177%2F073490419100900202 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-01-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Smoke; Sensitivity; Fires; Wood; Lasers; Research programs DO - http://dx.doi.org/10.1177/073490419100900202 ER - TY - JOUR T1 - Regional Characteristics of Land Use in Northeast and Southern Blue Ridge Province: Associations with Acid Rain Effects on Surface-Water Chemistry AN - 19131884; 9112120 AB - The Direct/Delayed Response Project (DDRP) is one of several studies being conducted by the United States Environmental Protection Agency to assess risk to surface waters from acidic deposition in the eastern United States. In one phase of DDRP, land use, wetland, and forest cover data were collected for statistical samples of 145 Northeast lake and 35 Southern Blue Ridge Province stream watersheds in the United States. Land use and other data were extrapolated from individual to target watershed populations. Project statistical design allows summarization of results for various subsets of the target population. Forest cover was the primary land use in both the Northeast lake and Southern Blue Ridge Province stream regions. In the Northeast, developed (agriculture and urban) land was positively associated with surface-water chemistry values for acid neutralizing capacity, Ca plus Mg, pH, and sulfate in the Pocono/Catskill subregion. Extensive wetlands and beaver activity occur in parts of the Northeast region, whereas topography limits wetland and riparian development in the Southern Blue Ridge Province. Northeast soils have low sulfate adsorption capacity, most watersheds are near sulfur steady state, and lake sulfate concentrations are controlled principally by levels of sulfur deposition. Net annual sulfur retention in Northeast watersheds is positively correlated with the occurrence of wetlands and beaver impoundments. In contrast , most Southern Blue Ridge Province soils have high sulfate adsorption capacities, resulting in high net watershed sulfur retention. At the present time, stream sulfate concentrations and percent sulfur retention are controlled principally by soil chemical properties related to adsorption rather than atmospheric deposition and land use. (Author's abstract) JF - Environmental Management EMNGDC, Vol. 15, No. 2, p 269-279, March/April 1991. 1 fig, 9 tab, 43 ref. AU - Liegel, L AU - Cassell, D AU - Stevens, D AU - Shaffer, P AU - Church, R AD - USDA Forest Service, US EPA Environmental Research Laboratory, 200 SW 35 Street, Corvallis, Oregon 97333 Y1 - 1991/03// PY - 1991 DA - Mar 1991 KW - Water Resources Abstracts KW - *Acid rain KW - *Acid rain effects KW - *Environmental chemistry KW - *Land use KW - *Path of pollutants KW - *Regional analysis KW - Acid lakes KW - Acid neutralizing capacity KW - Acid streams KW - Calcium KW - Lake acidification KW - Magnesium KW - Soil chemistry KW - Sulfates KW - Sulfur KW - Vegetation effects KW - Wetlands KW - SW 3020:Sources and fate of pollution KW - SW 3030:Effects of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19131884?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Regional+Characteristics+of+Land+Use+in+Northeast+and+Southern+Blue+Ridge+Province%3A+Associations+with+Acid+Rain+Effects+on+Surface-Water+Chemistry&rft.au=Liegel%2C+L%3BCassell%2C+D%3BStevens%2C+D%3BShaffer%2C+P%3BChurch%2C+R&rft.aulast=Liegel&rft.aufirst=L&rft.date=1991-03-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Effect of temperature history on the growth of Listeria monocytogenes Scott A at refrigeration temperatures. AN - 80615077; 1904762 AB - The effect of pre-inoculation temperature on the subsequent growth of Listeria monocytogenes Scott A at 5 degrees C was examined in microbiological medium, UHT milk, canned dog food, and raw ground beef (untreated and irradiation-sterilized). In microbiological medium, the duration of the lag phase was decreased when aerobic and anaerobic cultures were initially grown at less than or equal to 28 and less than or equal to 13 degrees C, respectively. Subsequent exponential growth rates and maximum population densities of the 5 degrees C cultures were not affected by temperature history. Differences in lag phase durations were also observed when L. monocytogenes initially cultured at 19 and 37 degrees C were grown at 5 degrees C in UHT milk and some of the canned dog food varieties. Growth of L. monocytogenes was not observed in either untreated or irradiation-sterilized raw ground beef. While temperature history can affect the growth kinetics of L. monocytogenes at 5 degrees C, it did not account for the lack of growth in raw meat, suggesting that there is an inhibitory condition or component in ground beef that is lost upon cooking. JF - International journal of food microbiology AU - Buchanan, R L AU - Klawitter, L A AD - Microbial Food Safety Research Unit, U.S. Department of Agriculture, ARS Eastern Regional Research Center, Philadelphia, PA 19118. Y1 - 1991/02// PY - 1991 DA - February 1991 SP - 235 EP - 245 VL - 12 IS - 2-3 SN - 0168-1605, 0168-1605 KW - Culture Media KW - 0 KW - Index Medicus KW - Refrigeration KW - Animals KW - Temperature KW - Cold Temperature KW - Meat KW - Kinetics KW - Meat Products KW - Milk -- microbiology KW - Colony Count, Microbial KW - Food Irradiation KW - Aerobiosis KW - Anaerobiosis KW - Food Microbiology KW - Listeria monocytogenes -- growth & development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80615077?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+journal+of+food+microbiology&rft.atitle=Effect+of+temperature+history+on+the+growth+of+Listeria+monocytogenes+Scott+A+at+refrigeration+temperatures.&rft.au=Buchanan%2C+R+L%3BKlawitter%2C+L+A&rft.aulast=Buchanan&rft.aufirst=R&rft.date=1991-02-01&rft.volume=12&rft.issue=2-3&rft.spage=235&rft.isbn=&rft.btitle=&rft.title=International+journal+of+food+microbiology&rft.issn=01681605&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-07-22 N1 - Date created - 1991-07-22 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Effect of ionizing radiation dose, temperature, and atmosphere on the survival of Salmonella typhimurium in sterile, mechanically deboned chicken meat. AN - 80548470; 2027844 AB - The response to gamma radiation (0 to 3.60 kGy; 100 krad = 1 kGy) of Salmonella typhimurium was tested in otherwise sterile, mechanically deboned chicken meat (MDCM) in the absence of competing microflora. Response was determined at temperatures of -20 to +20 C and when the MDCM was packaged in vacuum or in the presence of air. A central composite response-surface design was used to test the response of the pathogen to the treatments in a single experiment. Predictive equations were developed from the analyses of variances of the resulting data. The accuracy of each predictive equation was tested by further studies of the effects of gamma radiation on S. typhimurium in the presence or absence of air at -20, 0, and +20 C. All data were then analyzed to refine the predictive equations further. Both the original and the refined equations adequately predicted the response of S. typhimurium in MDCM to gamma radiation doses up to 3.60 kGy in the presence of air or in vacuo. Gamma irradiation was significantly more lethal for S. typhimurium in the presence of air and at higher temperatures. The final equations predict a reduction in the number of surviving Salmonella in MDCM irradiated to 1.50 kGy at -20 C of 2.53 logs in air or 2.12 logs if irradiated in vacuum. If the contaminated MDCM were to receive a dose of 3.0 kGy at -20 C in air, the number of Salmonella would be decreased by 4.78 logs, and if irradiated in vacuum, by 4.29 logs.(ABSTRACT TRUNCATED AT 250 WORDS) JF - Poultry science AU - Thayer, D W AU - Boyd, G AD - Food Safety Research Unit, USDA, Philadelphia, Pennsylvania 19118. Y1 - 1991/02// PY - 1991 DA - February 1991 SP - 381 EP - 388 VL - 70 IS - 2 SN - 0032-5791, 0032-5791 KW - Index Medicus KW - Regression Analysis KW - Animals KW - Chickens KW - Analysis of Variance KW - Gamma Rays KW - Temperature KW - Air KW - Meat -- standards KW - Food Microbiology KW - Food Irradiation KW - Salmonella typhimurium -- growth & development KW - Salmonella typhimurium -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80548470?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Poultry+science&rft.atitle=Effect+of+ionizing+radiation+dose%2C+temperature%2C+and+atmosphere+on+the+survival+of+Salmonella+typhimurium+in+sterile%2C+mechanically+deboned+chicken+meat.&rft.au=Thayer%2C+D+W%3BBoyd%2C+G&rft.aulast=Thayer&rft.aufirst=D&rft.date=1991-02-01&rft.volume=70&rft.issue=2&rft.spage=381&rft.isbn=&rft.btitle=&rft.title=Poultry+science&rft.issn=00325791&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-06-13 N1 - Date created - 1991-06-13 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Surface sealing in coastal plains loamy sands AN - 50582644; 1991-028631 JF - Soil Science Society of America Journal AU - Radcliffe, D E AU - West, L T AU - Hubbard, R K AU - Asmussen, Loris E Y1 - 1991/02// PY - 1991 DA - February 1991 SP - 223 EP - 227 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 1 SN - 0361-5995, 0361-5995 KW - United States KW - soils KW - Paleudults KW - experimental studies KW - sealing KW - Ultisols KW - coastal plains KW - infiltration KW - soil surveys KW - surveys KW - Georgia KW - Udults KW - Kandiudults KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50582644?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Surface+sealing+in+coastal+plains+loamy+sands&rft.au=Radcliffe%2C+D+E%3BWest%2C+L+T%3BHubbard%2C+R+K%3BAsmussen%2C+Loris+E&rft.aulast=Radcliffe&rft.aufirst=D&rft.date=1991-02-01&rft.volume=55&rft.issue=1&rft.spage=223&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1991-01-01 N1 - PubXState - WI N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - coastal plains; experimental studies; Georgia; infiltration; Kandiudults; Paleudults; sealing; soil surveys; soils; surveys; Udults; Ultisols; United States ER - TY - JOUR T1 - Suspension nebulization analysis of clays by inductively coupled plasma-atomic emission spectroscopy AN - 50581419; 1991-028633 JF - Soil Science Society of America Journal AU - Laird, D A AU - Dowdy, R H AU - Munter, R C Y1 - 1991/02// PY - 1991 DA - February 1991 SP - 274 EP - 278 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 1 SN - 0361-5995, 0361-5995 KW - silicates KW - methods KW - experimental studies KW - inductively coupled plasma methods KW - X-ray diffraction data KW - clay mineralogy KW - suspension KW - kaolinite KW - illite KW - clay minerals KW - sheet silicates KW - applications KW - spectroscopy KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50581419?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Suspension+nebulization+analysis+of+clays+by+inductively+coupled+plasma-atomic+emission+spectroscopy&rft.au=Laird%2C+D+A%3BDowdy%2C+R+H%3BMunter%2C+R+C&rft.aulast=Laird&rft.aufirst=D&rft.date=1991-02-01&rft.volume=55&rft.issue=1&rft.spage=274&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1991-01-01 N1 - Number of references - 12 N1 - PubXState - WI N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - applications; clay mineralogy; clay minerals; experimental studies; illite; inductively coupled plasma methods; kaolinite; methods; sheet silicates; silicates; spectroscopy; suspension; X-ray diffraction data ER - TY - JOUR T1 - National Estimates of the Recreational Value of Streamflow AN - 19121642; 9108942 AB - A practical method of valuing the recreational fishing benefits generated by a unit of water as it moves downstream is presented. A cross-sectional analysis was employed to estimate the change in individuals' fishing behavior due to a change in availability of fishery resources. A proxy for the availability of stream fishery resources is derived from the link between changes in streamflow consumption to changes in the quality of fishing downstream. The results show that marginal increases in streamflow can generate recreational benefits that exceed the marginal value of water in agriculture in some regions of the country. The estimated change in days fished due to an acre-foot change in streamflow varies across the United States, with most falling between 0.1 and 1 day ac ft. Although recreational fishing values for marginal streamflow changes were found to be less than $10.00 per acre-foot in most aggregated subareas, marginal values were found to exceed estimates of water's marginal values to irrigators in 51 of the 67 river basins that have a significant level of irrigation. (White-Reimer-PTT) JF - Water Resources Research WRERAQ, Vol. 27, No. 2, p 167-175, February 1991. 1 fig, 2 tab, 34 ref. AU - Hansen, L T AU - Hallam, A AD - Economic Research Service, USDA, Washington, D.C Y1 - 1991/02// PY - 1991 DA - Feb 1991 KW - Water Resources Abstracts KW - Economic aspects KW - Recreation demand KW - Sport fishing KW - Streamflow KW - Cost analysis KW - Irrigation KW - Stream fisheries KW - SW 4030:Cost allocation, cost sharing, pricing KW - SW 4040:Water demand UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19121642?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=National+Estimates+of+the+Recreational+Value+of+Streamflow&rft.au=Hansen%2C+L+T%3BHallam%2C+A&rft.aulast=Hansen&rft.aufirst=L&rft.date=1991-02-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - The Bureau of Reclamation's New Mandate for Irrigation Water Conservation: Purposes and Policy Alternatives AN - 19121586; 9108940 AB - Although the Bureau of Reclamation adopted a new mission as a water management agency, social purposes of the mission and methods of accomplishing the purposes remain undefined. A broad consensus agrees that a central feature of the agency's management program should be irrigation water conservation. Three purposes of irrigation water conservation were determined: achieving economic efficiency of water allocation; improving environmental quality of western river systems; and satisfying outstanding Native American water claims. Five policy instruments were identified as alternative methods of inducing conservation: quantity-based regulation; price-based regulation; transferable water use permits; conservation subsidies; and decentralization of ownership of Reclamation facilities. Present indications are that (1) price-based regulation may not produce water conservation, and (2) conservation policy instruments should be chosen with reference to their ability to achieve the purposes of federal water conservation policy. However, the policy framework developed still falls short of providing a full vision of the Bureau as a public agency with a true stewardship mission. (Author's abstract) JF - Water Resources Research WRERAQ, Vol. 27, No. 2, p 145-155, February 1991. 3 tab, 50 ref. AU - Moore, M R AD - Resources and Technology Division, Economic Research Service, U.S. Dept. of Agriculture, Washington, D.C Y1 - 1991/02// PY - 1991 DA - Feb 1991 KW - Water Resources Abstracts KW - Administrative agencies KW - Bureau of Reclamation KW - Irrigation KW - Water conservation KW - Water management KW - Economic aspects KW - Irrigation programs KW - Management planning KW - Policy making KW - SW 4020:Evaluation process KW - SW 1060:Conservation in agricultural use UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19121586?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=The+Bureau+of+Reclamation%27s+New+Mandate+for+Irrigation+Water+Conservation%3A+Purposes+and+Policy+Alternatives&rft.au=Moore%2C+M+R&rft.aulast=Moore&rft.aufirst=M&rft.date=1991-02-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - The threshold friction velocities and soil flux rates of selected soils in south-west New South Wales, Australia AN - 911675278; 2012-003671 JF - Acta Mechanica AU - Leys, J F A2 - Barndorff-Nielsen, O. E. A2 - Willetts, B. B. A2 - Christiansen, C. A2 - Hunt, J. C. R. A2 - Hutter, K. A2 - Moller, J. T. A2 - Rasmussen, K. R. A2 - Sorensen, M. A2 - Ziegler, F. Y1 - 1991 PY - 1991 DA - 1991 SP - 103 EP - 112 PB - Springer-Verlag, Vienna - New York VL - Suppl. 2 SN - 0001-5970, 0001-5970 KW - soils KW - experimental studies KW - Australasia KW - sediment transport KW - erosion KW - wind erosion KW - New South Wales Australia KW - friction KW - mathematical models KW - transport KW - velocity KW - Australia KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911675278?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Acta+Mechanica&rft.atitle=The+threshold+friction+velocities+and+soil+flux+rates+of+selected+soils+in+south-west+New+South+Wales%2C+Australia&rft.au=Leys%2C+J+F&rft.aulast=Leys&rft.aufirst=J&rft.date=1991-01-01&rft.volume=Suppl.+2&rft.issue=&rft.spage=103&rft.isbn=3211822747&rft.btitle=&rft.title=Acta+Mechanica&rft.issn=00015970&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 18 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Australasia; Australia; erosion; experimental studies; friction; mathematical models; New South Wales Australia; sediment transport; soils; transport; velocity; wind erosion ER - TY - JOUR T1 - Studying metapopulation effects in predator-prey systems AN - 888105295; 15449980 AB - It has been suggested that many predator-prey systems persist, despite unstable local interactions, due to metapopulation processes: movement of individuals among largely independent local populations. I review 13 possible examples of this phenomenon all I could find in the literature-and find that each either lacks convincing data or is not a true metapopulation. Most of the examples rely on evidence of local extinction and recolonization, only a few using direct experimental methods; I discuss the advantages and disadvantages of these methods, as well as alternatives. I also consider the ways these systems deviate from having pure metapopulation structures, and conclude that most large-scale spatial population structures will not fit cleanly into a metapopulation vs. within-population dichotomy, but rather combine features of both. This will necessitate use of powerful and focused methodology (in particular, experimentation) to directly describe movement rates and patterns, rather than use of crude observational data (e.g. extinctions) to make inferences about movement. JF - Biological Journal of the Linnean Society AU - Taylor, Andrew D AD - U.S.D.A. Forest Service, Southern Forest Experiment Station, 2500 Shreveport Highway, Pineville, LA 71360, U.S.A. Y1 - 1991/01// PY - 1991 DA - Jan 1991 SP - 305 EP - 323 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 42 IS - 1-2 SN - 0024-4066, 0024-4066 KW - Animal Behavior Abstracts; Ecology Abstracts; Sustainability Science Abstracts KW - population structure KW - Data processing KW - Extinction KW - metapopulations KW - Reviews KW - Recolonization KW - extinction KW - Population structure KW - recolonization KW - Metapopulations KW - Y 25150:General/Miscellaneous KW - M3 1010:Issues in Sustainable Development KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/888105295?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biological+Journal+of+the+Linnean+Society&rft.atitle=Studying+metapopulation+effects+in+predator-prey+systems&rft.au=Taylor%2C+Andrew+D&rft.aulast=Taylor&rft.aufirst=Andrew&rft.date=1991-01-01&rft.volume=42&rft.issue=1-2&rft.spage=305&rft.isbn=&rft.btitle=&rft.title=Biological+Journal+of+the+Linnean+Society&rft.issn=00244066&rft_id=info:doi/10.1111%2Fj.1095-8312.1991.tb00565.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-09-01 N1 - Last updated - 2013-12-16 N1 - SubjectsTermNotLitGenreText - Data processing; Extinction; Reviews; Recolonization; Population structure; Metapopulations; population structure; metapopulations; extinction; recolonization DO - http://dx.doi.org/10.1111/j.1095-8312.1991.tb00565.x ER - TY - JOUR T1 - Limonoid antifeedants from seed of Sandoricum koetjape. AN - 80604718; 2045819 AB - An extract of the seed of Sandoricum koetjape has yielded two new limonoids, sandoricin [1] and 6-hydroxysandoricin [2]. Both compounds are effective antifeedants when incorporated into artificial diets and fed to fall armyworm (Spodoptera frugiperda) or European corn borer (Ostrina nubilalis) larvae. Reduced growth rates and increased times to pupation were evident at lower dose levels while significant mortality was noted at higher dose levels. Structures of both compounds were determined by 1H nmr, 13C nmr, and ms and confirmed by X-ray crystallography. JF - Journal of natural products AU - Powell, R G AU - Mikolajczak, K L AU - Zilkowski, B W AU - Mantus, E K AU - Cherry, D AU - Clardy, J AD - USDA, Agricultural Research Service, Northern Regional Research Center, Peoria, Illinois 61604. PY - 1991 SP - 241 EP - 246 VL - 54 IS - 1 SN - 0163-3864, 0163-3864 KW - Insecticides KW - 0 KW - Limonins KW - Triterpenes KW - sandoricin KW - 133585-55-4 KW - 6-hydroxysandoricin KW - 133585-56-5 KW - Index Medicus KW - Seeds -- analysis KW - Molecular Structure KW - Animals KW - Larva KW - Chi-Square Distribution KW - Feeding Behavior -- drug effects KW - Plants -- analysis KW - Triterpenes -- chemistry KW - Moths -- physiology KW - Insecticides -- chemistry KW - Insecticides -- isolation & purification KW - Triterpenes -- pharmacology KW - Triterpenes -- isolation & purification UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80604718?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+natural+products&rft.atitle=Limonoid+antifeedants+from+seed+of+Sandoricum+koetjape.&rft.au=Powell%2C+R+G%3BMikolajczak%2C+K+L%3BZilkowski%2C+B+W%3BMantus%2C+E+K%3BCherry%2C+D%3BClardy%2C+J&rft.aulast=Powell&rft.aufirst=R&rft.date=1991-01-01&rft.volume=54&rft.issue=1&rft.spage=241&rft.isbn=&rft.btitle=&rft.title=Journal+of+natural+products&rft.issn=01633864&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-07-17 N1 - Date created - 1991-07-17 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Dynamics of permethrin resistance in a colony of horn flies (Diptera: Muscidae). AN - 80568698; 2033620 AB - A colony of horn fly, Haematobia irritans (L.), was established from field-collected, resistant flies. Changes in resistance levels were monitored under a regimen with and without insecticide pressure. The colony remained closed with no introduction of susceptible flies. In the absence of permethrin pressure, resistance levels dropped to 2.5 times from an initial level of 17 times at LC50 and remained at that level from generation 12 through 33. In the presence of various insecticide pressure regimens, resistance increased to 500 times at LC90 by generation 86. In a separate study, susceptible colony flies were subjected to permethrin pressure, with first resistance evident in generation 16 and increasing to greater than 100 times at LC90 in generation 88. JF - Journal of medical entomology AU - Kunz, S E AD - Knipling-Bushland U.S. Livestock Insects Laboratory, USDA-ARS, Kerrville, Texas 78029. Y1 - 1991/01// PY - 1991 DA - January 1991 SP - 63 EP - 66 VL - 28 IS - 1 SN - 0022-2585, 0022-2585 KW - Insecticides KW - 0 KW - Pyrethrins KW - Permethrin KW - 509F88P9SZ KW - Index Medicus KW - Animals KW - Insecticide Resistance KW - Muscidae UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80568698?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+medical+entomology&rft.atitle=Dynamics+of+permethrin+resistance+in+a+colony+of+horn+flies+%28Diptera%3A+Muscidae%29.&rft.au=Kunz%2C+S+E&rft.aulast=Kunz&rft.aufirst=S&rft.date=1991-01-01&rft.volume=28&rft.issue=1&rft.spage=63&rft.isbn=&rft.btitle=&rft.title=Journal+of+medical+entomology&rft.issn=00222585&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-06-24 N1 - Date created - 1991-06-24 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Multiresidue assay for benzimidazole anthelmintics by liquid chromatography and confirmation by gas chromatography/selected-ion monitoring electron impact mass spectrometry. AN - 80550650; 2026577 AB - A multiresidue method utilizing all-disposable labware has been developed for 8 benzimidazole anthelmintics from ovine, bovine, and swine muscle and liver tissues. After an initial extraction with ethyl acetate and subsequent evaporation, a 3-component extraction using hexane, ethanol, and 0.2N HCl was used for final cleanup. Clean extracts were produced for separation and determination by reverse-phase liquid chromatography at 298 nm, using methanol and aqueous buffer as mobile phase. A synthesized internal standard, 2-(n-butylmercapto)benzimidazole, was used for quantitation of all drugs. Results are included along with statistical information verifying the performance of the method. Spiked control tissues and incurred drug tissues were used for an intralaboratory study with a concentration range of 50-1470 ppb. A series of standard curves at 0, 50, 100, and 200 ppb were analyzed. Overall recovery at the 100 ppb level averaged 92% (CV 8%) in liver tissues, across all 3 species and 88% (CV 5%) in muscle tissues across all 3 species. Results were confirmed by gas chromatography/mass spectrometry with acid hydrolysis of the remaining extract in 2N HCl followed by re-extraction of the amine and derivatization to the tert-butyldimethylsilyl derivative. The anthelmintics were identified by gas chromatography/selected ion monitoring electron-impact mass spectrometry. Ion ratio measurements were taken and compared to standard material. CVs averaged 10% or less for all drugs tested. JF - Journal - Association of Official Analytical Chemists AU - Wilson, R T AU - Groneck, J M AU - Henry, A C AU - Rowe, L D AD - U.S. Department of Agriculture, Food Safety and Inspection Service, Midwestern Laboratory, St. Louis, MO 63115. PY - 1991 SP - 56 EP - 67 VL - 74 IS - 1 SN - 0004-5756, 0004-5756 KW - Anthelmintics KW - 0 KW - Benzimidazoles KW - Indicators and Reagents KW - Index Medicus KW - Swine KW - Animals KW - Muscles -- chemistry KW - Cattle KW - Sheep KW - Gas Chromatography-Mass Spectrometry KW - Chromatography, Liquid KW - Liver -- chemistry KW - Drug Residues -- analysis KW - Benzimidazoles -- analysis KW - Anthelmintics -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80550650?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+-+Association+of+Official+Analytical+Chemists&rft.atitle=Multiresidue+assay+for+benzimidazole+anthelmintics+by+liquid+chromatography+and+confirmation+by+gas+chromatography%2Fselected-ion+monitoring+electron+impact+mass+spectrometry.&rft.au=Wilson%2C+R+T%3BGroneck%2C+J+M%3BHenry%2C+A+C%3BRowe%2C+L+D&rft.aulast=Wilson&rft.aufirst=R&rft.date=1991-01-01&rft.volume=74&rft.issue=1&rft.spage=56&rft.isbn=&rft.btitle=&rft.title=Journal+-+Association+of+Official+Analytical+Chemists&rft.issn=00045756&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-06-12 N1 - Date created - 1991-06-12 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Relative effects of feeding saturated fats and cholesterol on fluidity of rabbit lipoproteins. AN - 80540234; 1673898 AB - 1. The effects of saturated fat and cholesterol on lipoprotein fluidity were tested in New Zealand white rabbits fed diets containing corn oil (CO) or cocoa butter (CB) with and without added 0.2% cholesterol. 2. Saturated fats had little effect on fluidity in any lipoprotein fraction. 3. Cholesterol feeding dramatically reduced fluidity in VLDL and LDL, but minimal change was noted in HDL. 4. Cholesterol-fed rabbits were hypercholesteroloemic throughout the 10-month study. 5. The rabbits became adapted to cholesterol feeding as VLDL became more fluid with time. JF - Comparative biochemistry and physiology. A, Comparative physiology AU - Berlin, E AU - Shapiro, S G AU - Young, C AD - Lipid Nutrition Laboratory, Beltsville Human Nutrition Research Center, United States Department of Agriculture, MD 20705. Y1 - 1991 PY - 1991 DA - 1991 SP - 343 EP - 346 VL - 98 IS - 2 SN - 0300-9629, 0300-9629 KW - Cholesterol, Dietary KW - 0 KW - Dietary Fats KW - Lipoproteins KW - cocoa butter KW - 512OYT1CRR KW - Corn Oil KW - 8001-30-7 KW - Index Medicus KW - Animals KW - Corn Oil -- pharmacology KW - Rabbits KW - Hypercholesterolemia -- chemically induced KW - Male KW - Lipoproteins -- chemistry KW - Cholesterol, Dietary -- pharmacology KW - Dietary Fats -- pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80540234?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Comparative+biochemistry+and+physiology.+A%2C+Comparative+physiology&rft.atitle=Relative+effects+of+feeding+saturated+fats+and+cholesterol+on+fluidity+of+rabbit+lipoproteins.&rft.au=Berlin%2C+E%3BShapiro%2C+S+G%3BYoung%2C+C&rft.aulast=Berlin&rft.aufirst=E&rft.date=1991-01-01&rft.volume=98&rft.issue=2&rft.spage=343&rft.isbn=&rft.btitle=&rft.title=Comparative+biochemistry+and+physiology.+A%2C+Comparative+physiology&rft.issn=03009629&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-06-07 N1 - Date created - 1991-06-07 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Diminution of aflatoxin toxicity to growing lambs by dietary supplementation with hydrated sodium calcium aluminosilicate. AN - 80534407; 1850585 AB - Hydrated sodium calcium aluminosilicate (HSCAS), an anticaking agent for mixed feed, was added to the diets of growing wethers (mean body weight, 34.0 kg) and was evaluated for its ability to diminish the clinical signs of aflatoxicosis. The experimental design consisted of 4 treatment groups of 5 wethers each, consuming concentrations of 0 g of HSCAS and 0 g of aflatoxin (AF)/kg of feed (control; group 1); 20 g of HSCAS/kg (2.0%; group 2), 2.6 mg of AF/kg (group 3); or 20 g of HSCAS (2.0%) plus 2.6 mg of AF/kg (group 4). Wethers were maintained in indoor pens, with feed and water available ad libitum for 42 days. Lambs were observed twice daily and weighed weekly, and blood samples were obtained every 2 weeks for hematologic and serum biochemical analyses and for measurement of mitogen-induced lymphocyte-stimulation index. At the termination of the study, wethers were euthanatized and necropsied. Body weight gain was diminished significantly (P less than 0.05) by consumption of 2.6 mg of AF/kg of feed, whereas body weight of lambs consuming HSCAS plus AF did not differ from that of control wethers. The AF-alone treatment increased serum aspartate transaminase and gamma-glutamyltransferase activities, prothrombin time, and cholesterol, uric acid, and triglyceride values and decreased albumin, glucose, and urea nitrogen values, and urea-to-creatine ratio.(ABSTRACT TRUNCATED AT 250 WORDS) JF - American journal of veterinary research AU - Harvey, R B AU - Kubena, L F AU - Phillips, T D AU - Corrier, D E AU - Elissalde, M H AU - Huff, W E AD - United States Department of Agriculture, Food Animal Protection Research Laboratory, College Station, TX 77840. Y1 - 1991/01// PY - 1991 DA - January 1991 SP - 152 EP - 156 VL - 52 IS - 1 SN - 0002-9645, 0002-9645 KW - Aflatoxins KW - 0 KW - Aluminum Silicates KW - Zeolites KW - 1318-02-1 KW - Index Medicus KW - Animals KW - Random Allocation KW - Animal Feed -- toxicity KW - Mycotoxicosis -- prevention & control KW - Mycotoxicosis -- veterinary KW - Male KW - Aluminum Silicates -- pharmacology KW - Sheep KW - Food Contamination KW - Aflatoxins -- toxicity KW - Aflatoxins -- antagonists & inhibitors UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80534407?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+journal+of+veterinary+research&rft.atitle=Diminution+of+aflatoxin+toxicity+to+growing+lambs+by+dietary+supplementation+with+hydrated+sodium+calcium+aluminosilicate.&rft.au=Harvey%2C+R+B%3BKubena%2C+L+F%3BPhillips%2C+T+D%3BCorrier%2C+D+E%3BElissalde%2C+M+H%3BHuff%2C+W+E&rft.aulast=Harvey&rft.aufirst=R&rft.date=1991-01-01&rft.volume=52&rft.issue=1&rft.spage=152&rft.isbn=&rft.btitle=&rft.title=American+journal+of+veterinary+research&rft.issn=00029645&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-05-28 N1 - Date created - 1991-05-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Toxicity of pyrrolizidine alkaloids from Riddell groundsel (Senecio riddellii) to cattle. AN - 80530451; 2021243 AB - The toxicity of Riddell groundsel (Senecio riddellii) gavaged to calves at a known lethal rate was compared with the toxicity of riddelliine and riddelliine N-oxide, the pyrrolizidine alkaloids isolated from the plant, which were fed by intraruminal infusion. Doses of the alkaloids were adjusted to the amount determined to be in the plant and fed individually and in combination. The relative toxicosis in the calves was measured by clinical signs, serum enzyme changes, survival time to morbidity, and histologic changes. Calves fed Senecio riddellii by gavage for 20 consecutive days to provide 45 mg of total pyrrolizidine alkaloids/kg of body weight/d developed clinical signs and serum enzyme changes typical of seneciosis, with 100% morbidity. However, calves receiving riddelliine at 4.5 mg/kg/d for 20 days had neither serum enzyme changes nor clinical signs of pyrrolizidine alkaloidosis. Calves treated with riddelliine N-oxide (40.5 mg/kg/d), and with riddelliine (4.5 mg/kg/d) and riddelliine N-oxide (40.5 mg/kg/d) in combination, had 100% morbidity, although the latter group had fewer liver lesions. These results establish that the N-oxide form of the alkaloid alone is capable of inducing typical Senecio toxicosis in cattle and that the free base level of the plant cannot be considered to be the sole factor in assessing the toxicity of S riddellii. JF - American journal of veterinary research AU - Molyneux, R J AU - Johnson, A E AU - Olsen, J D AU - Baker, D C AD - Western Regional Research Center, USDA, Albany, CA 94710. Y1 - 1991/01// PY - 1991 DA - January 1991 SP - 146 EP - 151 VL - 52 IS - 1 SN - 0002-9645, 0002-9645 KW - Pyrrolizidine Alkaloids KW - 0 KW - riddelliine KW - 23246-96-0 KW - riddelliine N-oxide KW - 75056-11-0 KW - Index Medicus KW - Weight Gain -- drug effects KW - Animals KW - Cattle KW - Weight Loss -- drug effects KW - Intubation, Gastrointestinal -- veterinary KW - Female KW - Senecio KW - Plants, Toxic KW - Plant Poisoning -- pathology KW - Pyrrolizidine Alkaloids -- isolation & purification KW - Plant Poisoning -- veterinary KW - Pyrrolizidine Alkaloids -- administration & dosage KW - Pyrrolizidine Alkaloids -- toxicity KW - Cattle Diseases -- chemically induced UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80530451?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+journal+of+veterinary+research&rft.atitle=Toxicity+of+pyrrolizidine+alkaloids+from+Riddell+groundsel+%28Senecio+riddellii%29+to+cattle.&rft.au=Molyneux%2C+R+J%3BJohnson%2C+A+E%3BOlsen%2C+J+D%3BBaker%2C+D+C&rft.aulast=Molyneux&rft.aufirst=R&rft.date=1991-01-01&rft.volume=52&rft.issue=1&rft.spage=146&rft.isbn=&rft.btitle=&rft.title=American+journal+of+veterinary+research&rft.issn=00029645&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-05-28 N1 - Date created - 1991-05-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Aspergillus flavus and aflatoxins B1, B2, and M1 in corn associated with equine death. AN - 80452584; 1670319 AB - Corn from an Arkansas farm, where three horses died and others became sick, was investigated for causative principles. Necropsy of the three horses revealed what appeared to be severe hepatic necrosis. Histopathological examination indicated a pattern of hepatic lesions that was suggestive of aflatoxin contamination of the feed. Mycological examination of the corn by dilution plating revealed 95% of the colonies as Aspergillus flavus. Chemical analysis of the corn for mycotoxins was positive for aflatoxin B1, B2, and M1 at concentrations of 114, 10, and 6 micrograms/Kg, respectively. Cyclopiazonic acid, sterigmatocystin, and the Fusarium toxins, vomitoxin (deoxynivalenol), T-2 toxin, and diacetoxyscirpenol, were not detected. The presence of aflatoxin metabolites in the moldy corn and the presence of appropriate lesions were compatible with the diagnosis, equine aflatoxicosis. JF - Archives of environmental contamination and toxicology AU - Vesonder, R AU - Haliburton, J AU - Stubblefield, R AU - Gilmore, W AU - Peterson, S AD - Northern Regional Research Center USDA-Agricultural Research Service, Peoria, Illinois 61604. Y1 - 1991/01// PY - 1991 DA - January 1991 SP - 151 EP - 153 VL - 20 IS - 1 SN - 0090-4341, 0090-4341 KW - Aflatoxins KW - 0 KW - Index Medicus KW - Animals KW - Necrosis KW - Aspergillus flavus KW - Food Contamination KW - Horses KW - Mice KW - Male KW - Female KW - Aflatoxins -- analysis KW - Horse Diseases -- chemically induced KW - Zea mays -- microbiology KW - Liver Diseases -- veterinary KW - Horse Diseases -- mortality KW - Mycotoxicosis -- pathology KW - Zea mays -- chemistry KW - Liver Diseases -- mortality KW - Mycotoxicosis -- mortality KW - Liver Diseases -- pathology KW - Animal Feed -- analysis KW - Mycotoxicosis -- veterinary KW - Aflatoxins -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80452584?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Archives+of+environmental+contamination+and+toxicology&rft.atitle=Aspergillus+flavus+and+aflatoxins+B1%2C+B2%2C+and+M1+in+corn+associated+with+equine+death.&rft.au=Vesonder%2C+R%3BHaliburton%2C+J%3BStubblefield%2C+R%3BGilmore%2C+W%3BPeterson%2C+S&rft.aulast=Vesonder&rft.aufirst=R&rft.date=1991-01-01&rft.volume=20&rft.issue=1&rft.spage=151&rft.isbn=&rft.btitle=&rft.title=Archives+of+environmental+contamination+and+toxicology&rft.issn=00904341&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-03-28 N1 - Date created - 1991-03-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Biophysical alteration of lung surfactant by extracts of cotton dust. AN - 80444024; 1993159 AB - Byssinosis, a lung disease that can affect cotton mill workers, may be caused in part by lipopolysaccharides (LPS) from Gram negative bacteria. In vitro, LPS complexes with sheep lung surfactant (SLS). To determine whether LPS in extracts of cotton dust alters the biophysical characteristics of lung surfactant, aqueous extracts (1.0% w:v) of sterile surgical cotton (SSC) and a bulk raw cotton dust (1182DB) were prepared. Aliquots of the soluble extracts were incubated with SLS and studied by sucrose gradient centrifugation, surface tension analysis, and high pressure liquid chromatography (HPLC). The chromatography was employed to analyse for 3-hydroxymyristate (3-HM), a fatty acid indicating LPS. Also, purified Enterobacter agglomerans LPS and 3-HM as controls and as mixtures with SLS, were studied by HPLC. Sucrose gradient centrifugation showed that SLS-SSC, SLS-1182DB, and the SLS control had similar densities that differed from the remaining controls. The SLS-1182DB exhibited a floccule absent in the other samples. Surface tension values of SLS-SSC and SLS-1182DB differed significantly from all controls but only slightly from one another. 3-Hydroxymyristate was detected by HPLC in the 3-HM control, EA-LPS, SLS-EA-LPS, and SLS-1182DB, but not in SLS-SSC or the remaining controls. Apparently, 3-HM was below the HPLC detection range in SSC. The data indicate that LPS in the 1182DB, SSC and EA-LPS samples complexed with SLS. Floccule development in SLS-1182DB but not in SLS-EA-LPS suggests a further component(s) present in the bulk raw cotton dust, as well as LPS, which complexes with SLS. The data suggest that biophysical alterations to lung surfactant may play a part in the pathogenesis of byssinosis. JF - British journal of industrial medicine AU - DeLucca, A J AU - Brogden, K A AU - Catalano, E A AU - Morris, N M AD - Composition and Properties Research Unit, Southern Regional Research Center, New Orleans, Louisiana. Y1 - 1991/01// PY - 1991 DA - January 1991 SP - 41 EP - 47 VL - 48 IS - 1 SN - 0007-1072, 0007-1072 KW - Lipopolysaccharides KW - 0 KW - Myristic Acids KW - Pulmonary Surfactants KW - beta-hydroxymyristic acid KW - 1961-72-4 KW - Index Medicus KW - Centrifugation, Density Gradient KW - Animals KW - Surface Tension KW - Sheep KW - In Vitro Techniques KW - Disease Models, Animal KW - Flocculation KW - Myristic Acids -- metabolism KW - Chromatography, High Pressure Liquid KW - Byssinosis -- etiology KW - Lipopolysaccharides -- pharmacology KW - Enterobacter KW - Gossypium -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80444024?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=British+journal+of+industrial+medicine&rft.atitle=Biophysical+alteration+of+lung+surfactant+by+extracts+of+cotton+dust.&rft.au=DeLucca%2C+A+J%3BBrogden%2C+K+A%3BCatalano%2C+E+A%3BMorris%2C+N+M&rft.aulast=DeLucca&rft.aufirst=A&rft.date=1991-01-01&rft.volume=48&rft.issue=1&rft.spage=41&rft.isbn=&rft.btitle=&rft.title=British+journal+of+industrial+medicine&rft.issn=00071072&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-03-15 N1 - Date created - 1991-03-15 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Cited By: Anal Biochem. 1970 Jul;36(1):225-6 [5482631] Annu Rev Med. 1976;27:127-41 [779593] Biken J. 1977 Mar;20(1):5-10 [880206] Ann Occup Hyg. 1978 Dec;21(3):239-50 [751550] J Clin Invest. 1979 May;63(5):1015-8 [447823] Am Rev Respir Dis. 1979 Aug;120(2):429-39 [112895] Environ Health Perspect. 1984 Apr;55:227-37 [6376100] Ann Intern Med. 1984 Aug;101(2):157-63 [6742645] J Chromatogr. 1984 Jun 8;308:19-29 [6746814] Am Rev Respir Dis. 1984 Aug;130(2):225-30 [6547813] Am Rev Respir Dis. 1985 Mar;131(3):439-60 [2858175] J Appl Physiol (1985). 1985 Nov;59(5):1402-9 [3840800] Agents Actions. 1985 Sep;16(6):521-6 [4072829] Am J Pathol. 1986 Jan;122(1):140-51 [3510552] Br J Ind Med. 1986 Mar;43(3):182-7 [3947581] Am J Vet Res. 1986 Apr;47(4):727-9 [3754402] Br J Ind Med. 1961 Apr;18:120-9 [13734460] Br J Ind Med. 1960 Oct;17:304-6 [13778564] Ann Intern Med. 1964 Jan;60:39-46 [14104855] Scand J Work Environ Health. 1985 Jun;11(3 Spec No):199-206 [4035322] J Clin Invest. 1981 Feb;67(2):370-5 [6780608] J Appl Physiol Respir Environ Exerc Physiol. 1981 Jul;51(1):1-7 [7263402] J Clin Invest. 1982 Sep;70(3):673-83 [6896715] Lab Invest. 1983 Apr;48(4):458-70 [6339812] Environ Health Perspect. 1983 Sep;51:81-4 [6315386] Environ Health Perspect. 1984 Apr;55:205-26 [6145585] Environ Health Perspect. 1986 Apr;66:97-103 [3709489] Infect Immun. 1986 Jun;52(3):644-9 [3754848] Am Ind Hyg Assoc J. 1986 Aug;47(8):437-42 [3751893] Appl Environ Microbiol. 1986 Sep;52(3):510-4 [3094448] Circ Shock. 1986;20(1):25-34 [3094976] Am Rev Respir Dis. 1987 Jan;135(1):83-6 [3541718] Toxicol Appl Pharmacol. 1987 May;88(3):354-69 [3107166] Br J Ind Med. 1987 Sep;44(9):577-9 [3663524] Lung. 1988;166(1):25-31 [2891880] Am Ind Hyg Assoc J. 1988 Feb;49(2):81-8 [3282417] J Clin Microbiol. 1988 Apr;26(4):778-80 [3366873] Am Rev Respir Dis. 1988 Jun;137(6):1441-8 [3059861] Am J Vet Res. 1989 Apr;50(4):555-9 [2712422] Can J Biochem Physiol. 1959 Jan;37(1):91-102 [13618766] N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Effects of dietary boron on calcium and mineral metabolism in the streptozotocin-injected, vitamin D3-deprived rat. AN - 72779837; 1669022 AB - Dietary boron, in concentrations similar to that found in human diets comprised mainly of fruits and vegetables, affects both mineral and energy metabolism. Therefore, the effects of boron on a model system with a perturbed metabolic insulin-vitamin D3 axis was examined. Weanling male rats were fed a ground corn-high protein casein-corn oil-based diet (0.06 mg B/kg; no supplemental vitamin D3) supplemented with B (as orthoboric acid) at 0 or 2.4 mg/kg. After 55 days, all rats were equilibrated in individual metabolic cages for 6 days. After another 6 days, one half of the rats in both dietary groups were injected intraperitoneally with streptozotocin (STZ). All rats were killed 3 days after STZ treatment. STZ affected many aspects of mineral metabolism as expected. Plasma ionized calcium concentrations fell by approximately 10% in STZ-treated rats. Brain and heart mineral metabolism was spared from the toxic effects of STZ whereas spleen mineral metabolism was especially vulnerable to STZ. Supplemental dietary boron increased urinary excretion of calcium in the non-STZ rats but did not affect the plasma concentrations of alkaline phosphatase, ionized calcium or the concentration of calcium in the brains, lungs, kidneys and spleens of those animals. Supplemental dietary boron temporarily reduced the abnormally elevated renal excretion of albumin, potassium and sodium during the acute phase of diabetes mellitus. On the other hand, physiological amounts of dietary boron exacerbated the abnormally elevated rate of collagen breakdown in the STZ animal. Finally, boron may have indirectly affected heart mineral metabolism because dietary boron did not affect cardiac boron concentrations but did affect cardiac copper, calcium, manganese, molybdenum and phosphorus concentrations, primarily in non-STZ rats. The findings suggest that dietary boron has both protective and regulatory roles in mineral metabolism. JF - Magnesium and trace elements AU - Hunt, C D AU - Herbel, J L AD - USDA, Grand Forks Human Nutrition Research Center, N. Dak. PY - 1991 SP - 387 EP - 408 VL - 10 IS - 5-6 SN - 1015-3845, 1015-3845 KW - Minerals KW - 0 KW - Trace Elements KW - Cholecalciferol KW - 1C6V77QF41 KW - Streptozocin KW - 5W494URQ81 KW - Sodium KW - 9NEZ333N27 KW - Magnesium KW - I38ZP9992A KW - Boron KW - N9E3X5056Q KW - Potassium KW - RWP5GA015D KW - Calcium KW - SY7Q814VUP KW - Index Medicus KW - Animals KW - Kidney -- metabolism KW - Albuminuria KW - Liver -- metabolism KW - Brain -- metabolism KW - Trace Elements -- metabolism KW - Myocardium -- metabolism KW - Potassium -- metabolism KW - Calcium -- metabolism KW - Magnesium -- metabolism KW - Rats KW - Rats, Sprague-Dawley KW - Male KW - Sodium -- metabolism KW - Vitamin D Deficiency -- metabolism KW - Boron -- pharmacology KW - Diabetes Mellitus, Experimental -- metabolism KW - Cholecalciferol -- deficiency KW - Minerals -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72779837?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Magnesium+and+trace+elements&rft.atitle=Effects+of+dietary+boron+on+calcium+and+mineral+metabolism+in+the+streptozotocin-injected%2C+vitamin+D3-deprived+rat.&rft.au=Hunt%2C+C+D%3BHerbel%2C+J+L&rft.aulast=Hunt&rft.aufirst=C&rft.date=1991-01-01&rft.volume=10&rft.issue=5-6&rft.spage=387&rft.isbn=&rft.btitle=&rft.title=Magnesium+and+trace+elements&rft.issn=10153845&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1993-10-22 N1 - Date created - 1993-10-22 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Plant resistance mechanisms to air pollutants: rhythms in ascorbic acid production during growth under ozone stress. AN - 72669006; 1797413 AB - Relationships between ozone (O3) tolerance and leaf ascorbic acid concentrations in O3-susceptible (O3-S) 'Hark' and O3-resistant (O3-R) 'Hood' soybean, Glycine max (L.) Merr., cultivars were examined with high-performance liquid chromatography (HPLC). Leaf samples were analyzed at 4 intervals during a 24 h period. Soybean cultivars grown in the greenhouse with charcoal filtered (CF) and nonfiltered (NF) air showed daily oscillations in ascorbic acid production. Highest ascorbic acid levels in leaves during light coincided with highest concentrations of photochemical oxidants in the atmosphere at 2:00 p.m. The resistant genotype produced more ascorbic acid in its trifoliate leaves than did the corresponding susceptible genotype. Under CF air (an O3-reduced environment) O3-S and O3-R cultivars showed rhythms in ascorbic acid production. In NF air (an O3 stress environment) the O3-R cultivar alone showed rhythms in ascorbic acid production. Results indicated that superior O3 tolerance in the Hood soybean cultivar (compared with Hark) was associated with a greater increase in endogenous levels of ascorbic acid. Ascorbic acid may scavenge free radicals and thereby protect cells from injury by O3 or other oxyradical products. Plants defend themselves against photochemical oxidant stress, such as O3, by several mechanisms. Experimental evidence indicates that antioxidant defense systems existing in plant tissues may function to protect cellular components from deleterious effects of photochemical oxidants through endogenous and exogenous controls. JF - Chronobiology international AU - Lee, E H AD - Climate Stress Laboratory, USDA, ARS, Beltsville, Maryland 20705. Y1 - 1991 PY - 1991 DA - 1991 SP - 93 EP - 102 VL - 8 IS - 2 SN - 0742-0528, 0742-0528 KW - Air Pollutants KW - 0 KW - Free Radical Scavengers KW - Ozone KW - 66H7ZZK23N KW - Ascorbic Acid KW - PQ6CK8PD0R KW - Index Medicus KW - Plant Development KW - Drug Resistance KW - Adaptation, Physiological KW - Air Pollutants -- toxicity KW - Soybeans KW - Ascorbic Acid -- biosynthesis KW - Plants -- metabolism KW - Periodicity KW - Plants -- drug effects KW - Ozone -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72669006?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chronobiology+international&rft.atitle=Plant+resistance+mechanisms+to+air+pollutants%3A+rhythms+in+ascorbic+acid+production+during+growth+under+ozone+stress.&rft.au=Lee%2C+E+H&rft.aulast=Lee&rft.aufirst=E&rft.date=1991-01-01&rft.volume=8&rft.issue=2&rft.spage=93&rft.isbn=&rft.btitle=&rft.title=Chronobiology+international&rft.issn=07420528&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-04-13 N1 - Date created - 1992-04-13 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Prevention of adverse effects of food browning. AN - 72108901; 1897392 AB - Amino-carbonyl interactions of food constituents encompass those changes commonly termed browning reactions. Such reactions are responsible for deleterious post-harvest changes during processing and storage and may adversely affect the appearance, organoleptic properties, nutritional quality, and safety of a wide spectrum of foods. A growing area of concern is nutritional carcinogenesis, in which nutritionally linked cancer has been associated with amino-carbonyl reaction products. Specific practical and theoretical approaches to prevent adverse effects of food browning include: (1) modification and removal of primary reactants and endproducts in the browning reaction; (2) prevention of deleterious browning reactions through the use of antioxidants; (3) blocking of in vivo toxicant formation from browning products by means of dietary modulation; (4) accurate estimation of low levels of browning products in whole foods and their removal through antibody complexation; and (5) stimulation of inactivation in vivo toxicants from browning products by use of amino acids and sulfur-rich proteins. JF - Advances in experimental medicine and biology AU - Friedman, M AD - USDA, ARS, Western Regional Research Center, Albany, CA 94710. Y1 - 1991 PY - 1991 DA - 1991 SP - 171 EP - 215 VL - 289 SN - 0065-2598, 0065-2598 KW - Carcinogens KW - 0 KW - Mutagens KW - Index Medicus KW - Animals KW - Vegetables KW - Beverages KW - Humans KW - Fruit KW - Carcinogens -- metabolism KW - Maillard Reaction KW - Mutagens -- metabolism KW - Neoplasms -- prevention & control KW - Neoplasms -- etiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72108901?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+experimental+medicine+and+biology&rft.atitle=Prevention+of+adverse+effects+of+food+browning.&rft.au=Friedman%2C+M&rft.aulast=Friedman&rft.aufirst=M&rft.date=1991-01-01&rft.volume=289&rft.issue=&rft.spage=171&rft.isbn=&rft.btitle=&rft.title=Advances+in+experimental+medicine+and+biology&rft.issn=00652598&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-10-24 N1 - Date created - 1991-10-24 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Formation, nutritional value, and safety of D-amino acids. AN - 72107915; 1897404 AB - The extent of racemization of L-amino acid residues to D-isomers in food proteins increases with pH, time, and temperature. The nutritional utilization of different D-amino acids vary widely, both in animals and humans. In addition, some D-amino acids may be deleterious. For example, although D-phenylalanine is nutritionally available as a source of L-phenylalanine, high concentrations of D-tyrosine inhibit the growth of mice. The antimetabolic effect of D-tyrosine can be minimized by increasing the L-phenylalanine content of the diet. Similarly, L-cysteine has a sparing effect on L-methionine when fed to mice; however, D-cysteine does not. The wide variation in the utilization of D-amino acids is exemplified by the fact that D-lysine is not utilized as a source of L-lysine, whereas the utilization of D-methionine as a source of the L-isomer for growth is dose-dependent, reaching 76% of the value obtained with L-methionine. Both D-serine and the mixture of L-L and L-D isomers of lysinoalanine induce histological changes in the rat kidneys. D-tyrosine, D-serine, and lysinoalanine are produced in significant amounts under the influence of even short periods of alkaline treatment. Unresolved is whether the biological effects of D-amino acids vary, depending on whether they are consumed in the free state or as part of a food protein. Possible, metabolic interaction, antagonism, or synergism among D-amino acids in vivo also merits further study. The described results with mice complement related studies with other species and contribute to the understanding of nutritional and toxicological consequences of ingesting D-amino acids. Such an understanding will make it possible to devise food processing conditions to minimize or prevent the formation of undesirable D-amino acids in food proteins and to prepare better and safer foods. JF - Advances in experimental medicine and biology AU - Friedman, M AD - Western Regional Research Center, U.S. Department of Agriculture, Albany, California 94710. Y1 - 1991 PY - 1991 DA - 1991 SP - 447 EP - 481 VL - 289 SN - 0065-2598, 0065-2598 KW - Amino Acids KW - 0 KW - Dietary Proteins KW - Proteins KW - Index Medicus KW - Dietary Proteins -- standards KW - Animals KW - Stereoisomerism KW - Dietary Proteins -- metabolism KW - Nutritive Value KW - Dose-Response Relationship, Drug KW - Humans KW - Dietary Proteins -- adverse effects KW - Weight Gain KW - Amino Acids -- standards KW - Amino Acids -- chemistry KW - Amino Acids -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72107915?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+experimental+medicine+and+biology&rft.atitle=Formation%2C+nutritional+value%2C+and+safety+of+D-amino+acids.&rft.au=Friedman%2C+M&rft.aulast=Friedman&rft.aufirst=M&rft.date=1991-01-01&rft.volume=289&rft.issue=&rft.spage=447&rft.isbn=&rft.btitle=&rft.title=Advances+in+experimental+medicine+and+biology&rft.issn=00652598&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-10-24 N1 - Date created - 1991-10-24 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - CPAPER T1 - The Algebraic Solution of the Inequality Process T2 - American Sociological Association AN - 61721053; 91S24908 AB - The inequality process is a stochastic model of competition for wealth in which having wealth is an advantage. An abstraction of the surplus theory of social stratification, the inequality process has been solved numerically for its sociological implications. Here, simplified versions of it are solved algebraically for its stationary distribution & then generalized. Analysis shows similarities between the well known Ehrenfest Diffusion Model & the inequality process, although the latter is a concentrating diffusion, whereas the usual form of the Ehrenfest Diffusion is a dissipating diffusion. JF - American Sociological Association AU - Angle, John C Y1 - 1991///0, PY - 1991 DA - 0, 1991 KW - inequality process, competition for wealth, algebraic solution KW - Income Inequality KW - Wealth KW - Theoretical Problems KW - Competition KW - Models KW - proceeding KW - 0161: methodology and research technology; models: mathematical & other UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/61721053?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Asocabs&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=American+Sociological+Association&rft.atitle=The+Algebraic+Solution+of+the+Inequality+Process&rft.au=Angle%2C+John+C&rft.aulast=Angle&rft.aufirst=John&rft.date=1991-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Sociological+Association&rft.issn=&rft_id=info:doi/ LA - English DB - Sociological Abstracts N1 - Date revised - 2009-03-10 N1 - Publication note - 1991 N1 - Last updated - 2016-09-28 ER - TY - JOUR T1 - Sealing abandoned farm wells in North Dakota; a practical approach AN - 52411330; 2000-005154 JF - Annual Meeting - Association of Engineering Geologists AU - Reed, Carol A AU - Fredrickson, Dean AU - Seelig, Bruce AU - Anonymous Y1 - 1991 PY - 1991 DA - 1991 SP - 904 EP - 911 PB - Association of Engineering Geologists, [location varies] VL - 34 SN - 0375-572X, 0375-572X KW - United States KW - methods KW - Barnes County North Dakota KW - sand KW - sealing KW - bentonite KW - clastic sediments KW - North Dakota KW - sedimentary rocks KW - abandoned water wells KW - sediments KW - cement KW - water wells KW - clastic rocks KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52411330?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annual+Meeting+-+Association+of+Engineering+Geologists&rft.atitle=Sealing+abandoned+farm+wells+in+North+Dakota%3B+a+practical+approach&rft.au=Reed%2C+Carol+A%3BFredrickson%2C+Dean%3BSeelig%2C+Bruce%3BAnonymous&rft.aulast=Reed&rft.aufirst=Carol&rft.date=1991-01-01&rft.volume=34&rft.issue=&rft.spage=904&rft.isbn=&rft.btitle=&rft.title=Annual+Meeting+-+Association+of+Engineering+Geologists&rft.issn=0375572X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Association of Engineering Geologists 34th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - CAGPAV N1 - SubjectsTermNotLitGenreText - abandoned water wells; Barnes County North Dakota; bentonite; cement; clastic rocks; clastic sediments; methods; North Dakota; sand; sealing; sedimentary rocks; sediments; United States; water wells ER - TY - JOUR T1 - Soil erosion control; the 1990 Farm Bill AN - 51527783; 2006-085861 JF - Proceedings - Governor's Conference on the Management of the Illinois River System AU - Krapf, Thomas J AU - Anonymous Y1 - 1991 PY - 1991 DA - 1991 SP - 110 EP - 111 PB - [University of Illinois Water Resources Center], [Urbana, IL] VL - 3 KW - United States KW - soils KW - protection KW - water quality KW - Food Agriculture Conservation and Trade Act KW - erosion KW - legislation KW - agriculture KW - habitat KW - wetlands KW - erosion control KW - soil erosion KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51527783?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+-+Governor%27s+Conference+on+the+Management+of+the+Illinois+River+System&rft.atitle=Soil+erosion+control%3B+the+1990+Farm+Bill&rft.au=Krapf%2C+Thomas+J%3BAnonymous&rft.aulast=Krapf&rft.aufirst=Thomas&rft.date=1991-01-01&rft.volume=3&rft.issue=&rft.spage=110&rft.isbn=&rft.btitle=&rft.title=Proceedings+-+Governor%27s+Conference+on+the+Management+of+the+Illinois+River+System&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Third biennial conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - IL] N1 - Last updated - 2012-06-07 N1 - CODEN - #03899 N1 - SubjectsTermNotLitGenreText - agriculture; erosion; erosion control; Food Agriculture Conservation and Trade Act; habitat; land use; legislation; protection; soil erosion; soils; United States; water quality; wetlands ER - TY - JOUR T1 - Recent progress in modelling water flow and chemical transport in the unsaturated zone AN - 50451789; 1992-030792 JF - IAHS-AISH Publication AU - Van Genuchten, Martinus T A2 - Kienitz, G. A2 - Milly, P. C. D. A2 - Van Genuchten, Martinus T. A2 - Rosbjerg, D. A2 - Shuttleworth, W. J. Y1 - 1991 PY - 1991 DA - 1991 SP - 169 EP - 183 PB - International Association of Hydrological Sciences, [Louvain] VL - 204 SN - 0144-7815, 0144-7815 KW - processes KW - sedimentation KW - data processing KW - unsaturated zone KW - solutes KW - hydrogeology KW - solution KW - ground water KW - models KW - transport KW - Richards equation KW - geochemistry KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50451789?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=IAHS-AISH+Publication&rft.atitle=Recent+progress+in+modelling+water+flow+and+chemical+transport+in+the+unsaturated+zone&rft.au=Van+Genuchten%2C+Martinus+T&rft.aulast=Van+Genuchten&rft.aufirst=Martinus&rft.date=1991-01-01&rft.volume=204&rft.issue=&rft.spage=169&rft.isbn=0947571132&rft.btitle=&rft.title=IAHS-AISH+Publication&rft.issn=01447815&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Hydrological interactions between atmosphere, soil and vegetation N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1992-01-01 N1 - Number of references - 83 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - PIHSD9 N1 - SubjectsTermNotLitGenreText - data processing; geochemistry; ground water; hydrogeology; models; processes; Richards equation; sedimentation; solutes; solution; transport; unsaturated zone ER - TY - JOUR T1 - Understanding salt and sodium in soils, irrigation water and shallow groundwaters; a companion to the software program, SWAGMAN-Whatif AN - 50352014; 1993-015205 JF - CSIRO Water Resources Series AU - Robbins, C W AU - Meyer, W S AU - Prathapar, S A AU - White, R J G Y1 - 1991 PY - 1991 DA - 1991 SP - 24 PB - CSIRO Division Water Resour., Canberra, A.C.T. SN - 1032-1403, 1032-1403 KW - soils KW - toxic materials KW - chemically precipitated rocks KW - pollutants KW - reclamation KW - data processing KW - alkali metals KW - pollution KW - sodium KW - salinity KW - evaporites KW - irrigation KW - ground water KW - SWAGMAN-Whatif KW - computer programs KW - physical properties KW - sedimentary rocks KW - metals KW - salt KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50352014?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Robbins%2C+C+W%3BMeyer%2C+W+S%3BPrathapar%2C+S+A%3BWhite%2C+R+J+G&rft.aulast=Robbins&rft.aufirst=C&rft.date=1991-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Understanding+salt+and+sodium+in+soils%2C+irrigation+water+and+shallow+groundwaters%3B+a+companion+to+the+software+program%2C+SWAGMAN-Whatif&rft.title=Understanding+salt+and+sodium+in+soils%2C+irrigation+water+and+shallow+groundwaters%3B+a+companion+to+the+software+program%2C+SWAGMAN-Whatif&rft.issn=10321403&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 14 N1 - PubXState - A.C.T. N1 - Document feature - illus. incl. 2 tables, block diag. N1 - SuppNotes - Includes 2 appendices N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alkali metals; chemically precipitated rocks; computer programs; data processing; evaporites; ground water; irrigation; metals; physical properties; pollutants; pollution; reclamation; salinity; salt; sedimentary rocks; sodium; soils; SWAGMAN-Whatif; toxic materials ER - TY - JOUR T1 - An inventory of Ohio soils; Holmes County AN - 50320140; 1993-039694 JF - Progress Report - Ohio. Division of Soil and Water Conservation AU - Seaholm, J E AU - Graham, T E Y1 - 1991 PY - 1991 DA - 1991 SP - 52 PB - Ohio Division of Soil and Water Conservation, Columbus, OH SN - 0888-5141, 0888-5141 KW - Type: colored soils map KW - United States KW - soils KW - maps KW - Holmes County Ohio KW - soil surveys KW - surveys KW - soils maps KW - Ohio KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50320140?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Seaholm%2C+J+E%3BGraham%2C+T+E&rft.aulast=Seaholm&rft.aufirst=J&rft.date=1991-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=An+inventory+of+Ohio+soils%3B+Holmes+County&rft.title=An+inventory+of+Ohio+soils%3B+Holmes+County&rft.issn=08885141&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - PubXState - OH N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - PRONDO N1 - SubjectsTermNotLitGenreText - Holmes County Ohio; maps; Ohio; soil surveys; soils; soils maps; surveys; United States ER - TY - JOUR T1 - An inventory of Ohio soils; Meigs County AN - 50318511; 1993-039695 JF - Progress Report - Ohio. Division of Soil and Water Conservation AU - Gilmore, G M AU - Bottrell, G D Y1 - 1991 PY - 1991 DA - 1991 SP - 36 PB - Ohio Division of Soil and Water Conservation, Columbus, OH SN - 0888-5141, 0888-5141 KW - Type: colored soils map KW - United States KW - soils KW - maps KW - Meigs County Ohio KW - soil surveys KW - surveys KW - soils maps KW - Ohio KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50318511?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Gilmore%2C+G+M%3BBottrell%2C+G+D&rft.aulast=Gilmore&rft.aufirst=G&rft.date=1991-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=An+inventory+of+Ohio+soils%3B+Meigs+County&rft.title=An+inventory+of+Ohio+soils%3B+Meigs+County&rft.issn=08885141&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - PubXState - OH N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - PRONDO N1 - SubjectsTermNotLitGenreText - maps; Meigs County Ohio; Ohio; soil surveys; soils; soils maps; surveys; United States ER - TY - JOUR T1 - An inventory of Ohio soils; Muskingum County AN - 50318485; 1993-039693 JF - Progress Report - Ohio. Division of Soil and Water Conservation AU - Steiger, J R Y1 - 1991 PY - 1991 DA - 1991 SP - 77 PB - Ohio Division of Soil and Water Conservation, Columbus, OH SN - 0888-5141, 0888-5141 KW - Type: colored soils map KW - United States KW - soils KW - maps KW - Muskingum County Ohio KW - soil surveys KW - surveys KW - soils maps KW - Ohio KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50318485?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Steiger%2C+J+R&rft.aulast=Steiger&rft.aufirst=J&rft.date=1991-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=An+inventory+of+Ohio+soils%3B+Muskingum+County&rft.title=An+inventory+of+Ohio+soils%3B+Muskingum+County&rft.issn=08885141&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - PubXState - OH N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - PRONDO N1 - SubjectsTermNotLitGenreText - maps; Muskingum County Ohio; Ohio; soil surveys; soils; soils maps; surveys; United States ER - TY - JOUR T1 - Leonardo da Vinci's tree and the law of channel widths; combining quantitative geomorphology and art in education AN - 50065762; 1996-016762 JF - Abstracts with Programs - Geological Society of America AU - Shepherd, Russell G AU - Ellis, Beverly N AU - Anonymous Y1 - 1991 PY - 1991 DA - 1991 SP - 321 EP - 322 PB - Geological Society of America (GSA), Boulder, CO VL - 23 IS - 5 SN - 0016-7592, 0016-7592 KW - K-12 education KW - quantitative geomorphology KW - channel geometry KW - elementary school KW - da Vinci, Leonardo KW - fluvial features KW - drainage patterns KW - channels KW - education KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50065762?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Leonardo+da+Vinci%27s+tree+and+the+law+of+channel+widths%3B+combining+quantitative+geomorphology+and+art+in+education&rft.au=Shepherd%2C+Russell+G%3BEllis%2C+Beverly+N%3BAnonymous&rft.aulast=Shepherd&rft.aufirst=Russell&rft.date=1991-01-01&rft.volume=23&rft.issue=5&rft.spage=321&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1991 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - channel geometry; channels; da Vinci, Leonardo; drainage patterns; education; elementary school; fluvial features; K-12 education; quantitative geomorphology ER - TY - JOUR T1 - Sensitivity of soil freezing simulated by the SHAW model AN - 25439096; 2001-63-033189 (CE); 2001-63-005439 (MT); 0125418 (EN) AB - Sensitivity analyses conducted on hydrologic models are useful for understanding the complicated interactions of hydrologic processes and for demonstrating the potential errors resulting from incorrect estimation of input parameters. The effects of typical changes (measurement errors or natural variability) in input parameters on soil freezing as simulated by the Simultaneous Heat and Water (SHAW) model were investigated. The SHAW model simulates the interrelated heat and water transfer within snow, residue, and soil using estimated or measured weather data. Simulated frost depth was found to be very sensitive to small changes in air temperature (1 degree C) and initial snow depth (10 cm). Simulated frost depth was also potentially sensitive to the specified soil temperature for the lower boundary depending on the proximity of frost depth to the depth of the simulated profile. Site, residue soil characteristics having the greatest impact on simulated frost were slope, thickness of the residue layer, thermal conductivity of soil particles, soil bulk density, and a surface roughness parameter. Soil hydraulic parameters had little effect on frost depth, but had a large impact on water movement toward the zone of freezing and ice content of the frozen soil. JF - TRANS ASAE AU - Flerchinger, G N AD - USDA-Agricultural Research Service, Boise, ID, USA PY - 1991 SP - 2381 EP - 2389 PB - American Society of Agricultural Engineers, 2950 Niles Road, St. Joseph, MI, 49085-9659, USA, [mailto:hq@asae.org], [URL:http://www.asae.org] VL - 34 IS - 6 SN - 0001-2351, 0001-2351 KW - Civil Engineering (CE); Mechanical & Transportation Engineering (MT); Environmental Engineering (EN) KW - Ice KW - Depth profiling KW - Freezing KW - Residues KW - Errors KW - Sensitivity KW - Bulk density KW - Hydraulics KW - Boundaries KW - Thermal conductivity KW - Frozen soils KW - Variability KW - Climatology KW - Distance KW - Roughness KW - Article KW - EE 641:HEAT AND MASS TRANSFER KW - EE 444:WATER RESOURCES KW - EE 921:APPLIED MATHEMATICS (EN) KW - EE 483:SOIL MECHANICS AND FOUNDATIONS KW - EE 931:APPLIED PHYSICS GENERALLY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/25439096?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=TRANS+ASAE&rft.atitle=Sensitivity+of+soil+freezing+simulated+by+the+SHAW+model&rft.au=Flerchinger%2C+G+N&rft.aulast=Flerchinger&rft.aufirst=G&rft.date=1991-01-01&rft.volume=34&rft.issue=6&rft.spage=2381&rft.isbn=&rft.btitle=&rft.title=TRANS+ASAE&rft.issn=00012351&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 ER - TY - JOUR T1 - Use of graphics to present the results of erosion models AN - 25422739; 2001-63-012195 (CE); 0114148 (EN) AB - This study shows how graphical representations of a watershed system can be used to analyze the runoff and sediment yield. Combining output data from an erosion model, such as runoff, sediment yield, and particle size distribution of the eroded sediment, onto a single screen on a computer monitor, permits immediate analysis as a rainfall event occurs. This study shows how the erosion models CREAMS and ANSWERS can be modified for simulations on small and large watersheds, using graphics to enhance the results. JF - APPL ENG AGRIC AU - Bingner, R L AD - USDA-ARS, Oxford, MS, USA PY - 1991 SP - 193 EP - 197 PB - American Society of Agricultural Engineers, 2950 Niles Road, St. Joseph, MI, 49085-9659, USA, [mailto:hq@asae.org], [URL:http://www.asae.org] VL - 7 IS - 2 SN - 0883-8542, 0883-8542 KW - Civil Engineering (CE); Environmental Engineering (EN) KW - Sediments KW - Computer simulation KW - Watersheds KW - Erosion mechanisms KW - Runoff KW - Particle size distribution KW - Output KW - Erosion KW - Mathematical models KW - Rainfall KW - Combining KW - Article KW - EE 631:FLUID FLOW KW - EE 723:COMPUTER SOFTWARE, DATA HANDLING AND APPLICATIONS KW - EE 483:SOIL MECHANICS AND FOUNDATIONS KW - EE 444:WATER RESOURCES (EN) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/25422739?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=APPL+ENG+AGRIC&rft.atitle=Use+of+graphics+to+present+the+results+of+erosion+models&rft.au=Bingner%2C+R+L&rft.aulast=Bingner&rft.aufirst=R&rft.date=1991-01-01&rft.volume=7&rft.issue=2&rft.spage=193&rft.isbn=&rft.btitle=&rft.title=APPL+ENG+AGRIC&rft.issn=08838542&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 ER - TY - JOUR T1 - Runoff and peak discharges using Green-Ampt infiltration model AN - 25402349; 2001-63-012186 (CE); 0112735 (EN) AB - The Green-Ampt infiltration model is used to predict runoff from 12 rangeland and cropland watersheds in Montana and Wyoming. Soil parameters derived from data in standard USDA soil surveys are used, and 99 rainfall events are modeled. The runoff distributions obtained from the model are then used with a hydrograph model to predict the peak discharge from the watershed. Procedures are applied that adjusted the Green-Ampt infiltration parameters for various cover and condition classes. The model is applied to areas of up to 54 sq mi with a wide variety of soil and cover conditions. The runoff volumes and peak discharges are compared with the measured values and with those predicted by the Soil Conservation Service (SCS) curve-number procedure. The Green-Ampt model predicted both the runoff volume and peak discharge better than the curve-number model. The standard error of estimate was less for the Green-Ampt model in nine of 12 watersheds for runoff volumes and in 11 of 12 watersheds for peak discharges. JF - J HYDRAUL ENG AU - Van Mullem, JA AD - US Dept of Agr Soil Conservation Service, Bozeman, MT, USA PY - 1991 SP - 354 EP - 389 PB - American Society of Civil Engineers, 1801 Alexander Bell Drive, Reston, VA, 20191-4400, USA, [mailto:journal-services@asce.org], [URL:http://www.asce.org] VL - 117 IS - 3 SN - 0733-9429, 0733-9429 KW - Civil Engineering (CE); Environmental Engineering (EN) KW - Mathematical models KW - Runoff KW - Watersheds KW - Infiltration KW - Standard error KW - Montana KW - Soil conservation KW - Adjustment KW - Rangelands KW - Rainfall KW - Article KW - EE 444:WATER RESOURCES KW - EE 471:MARINE SCIENCE AND OCEANOGRAPHY KW - EE 921:APPLIED MATHEMATICS (EN) KW - EE 483:SOIL MECHANICS AND FOUNDATIONS KW - EE 442:FLOOD CONTROL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/25402349?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=J+HYDRAUL+ENG&rft.atitle=Runoff+and+peak+discharges+using+Green-Ampt+infiltration+model&rft.au=Van+Mullem%2C+JA&rft.aulast=Van+Mullem&rft.aufirst=JA&rft.date=1991-01-01&rft.volume=117&rft.issue=3&rft.spage=354&rft.isbn=&rft.btitle=&rft.title=J+HYDRAUL+ENG&rft.issn=07339429&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 ER - TY - JOUR T1 - Hydrologic effects of clearcutting and stripcutting loblolly pine in the coastal plain. AN - 25239329; 2001-23-004969; 2001-35-001133 (CE); 0126611 (EN) AB - Harvesting 29-year-old loblolly pine (Pinus taeda L.) plantations on six small catchments in the Coastal Plain of west Tennessee caused variable but generally minor increases of stormflow volumes during the four years following harvest. The increases were primarily associated with decreases of rainfall interception rather than with soil disturbance. Harvesting had no effect on stormflow volumes in six nearby catchments of 37-year-old loblolly pine to which the same treatments were applied. Postharvest increases of flow-weighted sediment concentrations averaged higher for the catchments with greater flows at both locations. During the fourth through eighth years after harvest, average sediment concentrations for harvested catchments at each location approximated closely the base rate of 62 mg L super(-1) previously defined for undisturbed pine types. Thus, relatively minor postharvest increases of stormflow volumes in the six 29-year-old plantations and increases of sediment concentrations in all 12 catchments were limited to about four years. Nevertheless, because of potential channel erosion, the findings confirm the need to extend stream management zones well up into drainages with intermittent and ephemeral flows wherever water quality is a concern. Despite certain undesirable effects of logging (baring of mineral soil, decreased weight and depth of forest floor, increased soil bulk density), the results demonstrate the high resilience developed by pine planted on severely eroded sites in the southern Coastal Plain. JF - Water Resources Bulletin AU - Ursic, S J AD - USDA Forest Service, Oxford, MS, USA PY - 1991 SP - 925 EP - 938 PB - AMERICAN WATER RESOURCES ASSOCIATION, 4 West Federal St, P O Box 1626, Middleburg, VA, 20118-1626, USA, [mailto:info@awra.org], [URL:http://www.awra.org] VL - 27 IS - 6 SN - 0043-1370, 0043-1370 KW - Civil Engineering (CE); Environmental Engineering (EN) KW - Catchments KW - Harvesting KW - Coastal environments KW - Sediments KW - Resources KW - Approximation KW - Plantations KW - Clearcutting KW - Rainfall KW - Logging KW - Bulk density KW - Management KW - Water quality KW - Resilience KW - Erosion KW - Forests KW - Drainage management KW - Drainage channels KW - Floors KW - Article KW - EE 483:SOIL MECHANICS AND FOUNDATIONS (EN) KW - EE 444:WATER RESOURCES KW - EE 821:AGRICULTURAL EQUIPMENT AND METHODS UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/25239329?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Bulletin&rft.atitle=Hydrologic+effects+of+clearcutting+and+stripcutting+loblolly+pine+in+the+coastal+plain.&rft.au=Ursic%2C+S+J&rft.aulast=Ursic&rft.aufirst=S&rft.date=1991-01-01&rft.volume=27&rft.issue=6&rft.spage=925&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Bulletin&rft.issn=00431370&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 ER - TY - JOUR T1 - Development and testing of a water management model (WATRCOM): development AN - 25183521; 2001-33-001885 (CE); 0121903 (EN) AB - Drainage is required in many agricultural watersheds in the southeastern United States for flood prevention and to sustain agricultural production. These drainage improvements often increase the severity of summer droughts by lowering water tables. A computer simulation model, WATRCOM, has been developed to assist in evaluating drainage improvements and the feasibility of using channel water level control. A finite element solution of the Boussinesq equation coupled with water balances in the unsaturated soil and on the surface is used to simulate water movement in three dimensions. Varying soil types and boundary conditions in land areas with irregular drainage channel networks can be considered. Model results are compared to published solutions for drainage to parallel drains. Solutions are also presented for flow in regions near intersecting drains and compared to solutions in regions with parallel drains. JF - TRANS ASAE AU - Parsons, JE AU - Skaggs, R W AU - Doty, C W AD - USDA-ARS, Florence, SC, USA PY - 1991 SP - 120 EP - 128 PB - American Society of Agricultural Engineers, 2950 Niles Road, St. Joseph, MI, 49085-9659, USA, [mailto:hq@asae.org], [URL:http://www.asae.org] VL - 34 IS - 1 SN - 0001-2351, 0001-2351 KW - Civil Engineering (CE); Environmental Engineering (EN) KW - Mathematical models KW - Drains KW - Agricultural management KW - Drainage channels KW - Drainage KW - Joining KW - Floods KW - Computer simulation KW - Watersheds KW - Land KW - Droughts KW - Drainage control KW - Networks KW - Finite element method KW - Water tables KW - Drainage management KW - Realizability KW - Water management KW - Article KW - EE 444:WATER RESOURCES KW - EE 631:FLUID FLOW KW - EE 723:COMPUTER SOFTWARE, DATA HANDLING AND APPLICATIONS KW - EE 821:AGRICULTURAL EQUIPMENT AND METHODS (EN) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/25183521?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=TRANS+ASAE&rft.atitle=Development+and+testing+of+a+water+management+model+%28WATRCOM%29%3A+development&rft.au=Parsons%2C+JE%3BSkaggs%2C+R+W%3BDoty%2C+C+W&rft.aulast=Parsons&rft.aufirst=JE&rft.date=1991-01-01&rft.volume=34&rft.issue=1&rft.spage=120&rft.isbn=&rft.btitle=&rft.title=TRANS+ASAE&rft.issn=00012351&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 ER - TY - JOUR T1 - Abrasion of crusted soils. Influence of abrader flux and soil properties AN - 25116397; 2001-63-012291 (CE); 0122429 (EN) AB - Surface crusts greatly affect soil susceptibility to wind erosion. Little is known about the effects of soil properties and environmental factors on crust abrasion. In this study, the influence of abrader flux, degree of crust consolidation, and selected soil properties on soil-crust erosion was evaluated and statistically modeled. Fourteen soils, representing a wide range of physical and chemical properties, were evaluated. Soils were subjected to simulated rainfall rates of either 25 or 64 mm h super(-1), air dried, and abraded at mass fluxes of 0.010, 0.025, and 0.050 kg m super(-1) s super(-1). Crust abrasion (abrasion coefficient, AC) was defined as the slope of the linear regression of cumulative soil loss vs. cumulative abrader passage. An analysis of variance indicated that abrader flux, crust consolidation level, soil properties, and their interactions significantly affected (P < 0.05) soil loss. The AC ranged from 3.179 m super(-1) for an organic soil to 0.002 m super(-1) for silt loam and clay soils. The range of AC for unconsolidated soils was from 5 to 5000 times greater than for crusted soils. The mean AC for unconsolidated soils was 40 and 70 times greater than for crusted soils created at rainfall rates of 25 and 64 mm h super(-1), respectively. Regression analyses revealed that the natural logarithm of AC was positively correlated with sand content and the cation-exchange capacity/clay ratio, and negatively correlated with abrader flux. JF - SOIL SCI SOC AM J AU - Zobeck, T M AD - USDA-ARS Conservation and Production Systems Research Unit, Big Spring, TX, USA PY - 1991 SP - 1091 EP - 1097 PB - Soil Science Society of America, 677 South Segoe Road, Madison, WI, 53711, USA, [mailto:lhendrickson@agronomy.org], [URL:http://www.soils.org] VL - 55 IS - 4 SN - 0361-5995, 0361-5995 KW - Civil Engineering (CE); Environmental Engineering (EN) KW - Abrasion KW - AC KW - Flux KW - Abrasion resistance KW - Correlation analysis KW - Clay (material) KW - Consolidation KW - Erosion KW - Rainfall KW - Regression analysis KW - Capacity KW - Loams KW - Coefficients KW - Cations KW - Fluxes KW - Variance KW - Mathematical models KW - Silts KW - Regression KW - Article KW - EE 443:METEOROLOGY KW - EE 454:ENVIRONMENTAL ENGINEERING (EN) KW - EE 802:CHEMICAL APPARATUS AND PLANTS KW - EE 483:SOIL MECHANICS AND FOUNDATIONS UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/25116397?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SOIL+SCI+SOC+AM+J&rft.atitle=Abrasion+of+crusted+soils.+Influence+of+abrader+flux+and+soil+properties&rft.au=Zobeck%2C+T+M&rft.aulast=Zobeck&rft.aufirst=T&rft.date=1991-01-01&rft.volume=55&rft.issue=4&rft.spage=1091&rft.isbn=&rft.btitle=&rft.title=SOIL+SCI+SOC+AM+J&rft.issn=03615995&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 ER - TY - JOUR T1 - Effect of Triploid Grass Carp on Submersed Aquatic Plants in Northern California Ponds AN - 19131043; 9200121 AB - Two ponds in Davis, California, were divided and stocked with the equivalent of 30 or 60 triploid grass carp, Ctenopharygodon idella Val. per hectare to determine effects on Eurasian watermilfoil, Myriophyllum spicatum L., sago pondweed, Potamogeton pectinatus L., and Chara sp. In the east pond, after 15 months, Eurasian watermilfoil had not been affected in the 30 fish/ha section and had been stimulated to grow in the 60 fish/ha section. Sago pondweed was reduced by 80% and 100% and Chara spp. was reduced by 2% and 72% at 30 and 60 fish/ha. At initial stocking, little Chara sp. was present in the section with 30 fish/ha. In the west pond, after 15 months, Eurasian watermilfoil had been reduced by 38% and 24%, and sago pondweed by 87% and 100% at 30 and 60 fish/ha. Based on these values, triploid grass carp preference was: sago pondweed > Chara > Eurasian watermilfoil (P < 0.05). A filamentous alga, Cladophora sp., disappeared from areas not surrounded by exclosures nine months after fish introduction. Nutritional variables of Kjeldahl nitrogen, fat, ash, and acid detergent fiber did not correlate with plant fresh weight consumed. (Author's abstract) JF - California Fish and Game CAFGAX, Vol. 77, No. 1, p 27-35, Winter 1991. 4 fig, 1 tab, 23 ref. AU - Pine, R T AU - Anderson, LWJ AD - USDA Aquatic Weed Control Research Lab., Davis, CA Y1 - 1991/01// PY - 1991 DA - Jan 1991 KW - Water Resources Abstracts KW - *Aquatic plants KW - *Aquatic weed control KW - *Carp KW - *Limnology KW - *Ponds KW - Algae KW - California KW - Chara KW - Nutrients KW - Plant growth KW - Pondweeds KW - SW 0850:Lakes KW - SW 2010:Control of water on the surface UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19131043?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Effect+of+Triploid+Grass+Carp+on+Submersed+Aquatic+Plants+in+Northern+California+Ponds&rft.au=Pine%2C+R+T%3BAnderson%2C+LWJ&rft.aulast=Pine&rft.aufirst=R&rft.date=1991-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Salinity, Nitrate and Water in Rangeland and Terraced Wheatland above Saline Seeps AN - 19121949; 9109328 AB - Saline seeps have emerged over the past 20 yr in some Southern Plains soils, in Oklahoma, which are cropped annually to winter wheat (Triticum aestivum). Saline seep development is a cumulative process associated with percolation of small increments of water over many years through saline strata in recharge areas to build up water tables over less permeable strata in lower slope positions. In this study, soluble salt, nitrate, water content were determined in Woodward soils (course silty, mixed, thermic Typic Ustochrepts) to a depth of 3 m in terraced farmland in adjacent native rangeland upslope from saline seeps. Significantly (P 0.05) was found in soluble salt content in farmland between terraces as compared to soluble salt in terrace channels. Greater amounts (P < 0.05) of nitrate and water were in the 3 m profiles under farmland than under native range. The soluble salt profiles indicate more water has percolated through the farmland than the rangeland. The implication is cultivated land, both in terrace channels and between terraces, is contributing salt and water to saline seep. An alternative explanation is terrace channels are the major recharge areas and lateral flow of this water leaches salt from farmland between the terraces. Using water before it percolates below the root zone is critical to the control of saline seep. Farm management practices such as rotating wheat with crops that have deeper roots such as sunflower, or use more water such as alfalfa, or double cropping of graze-out forage such as sorghum, may be useful in reducing seep formations. (Doyle-PTT) JF - Journal of Environmental Quality JEVQAA, Vol. 20, No. 1, p 8-11, January/March 1991. 4 fig, 20 ref. AU - Berg, WA AU - Naney, J W AU - Smith, S J AD - USDA-ARS, 2000 18th Street, Woodward, OK 73801 Y1 - 1991/01// PY - 1991 DA - Jan 1991 KW - Water Resources Abstracts KW - Groundwater movement KW - Path of pollutants KW - Saline soils KW - Salinity KW - Seeps KW - Agricultural practices KW - Agricultural watersheds KW - Agriculture KW - Leaching KW - Nitrates KW - Oklahoma KW - Percolation KW - Seep water KW - Wheat KW - SW 1030:Use of water of impaired quality KW - SW 2060:Effects on water of human nonwater activities KW - SW 3020:Sources and fate of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19121949?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Salinity%2C+Nitrate+and+Water+in+Rangeland+and+Terraced+Wheatland+above+Saline+Seeps&rft.au=Berg%2C+WA%3BNaney%2C+J+W%3BSmith%2C+S+J&rft.aulast=Berg&rft.aufirst=WA&rft.date=1991-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Cumulative Effects of Land Management on Soil and Water Resources: An Overview AN - 19121887; 9109327 AB - The concept of cumulative effects encompasses a broader spectrum of resources and land uses than has typically been evaluated in research. As management pressures in large drainage basins intensify, pristine areas may be subjected to multiple human activities. Timber harvesting, grazing, mining, recreation, site preparation, road construction, vegetation conversion as well as, agricultural applications of fertilizers, pesticides and herbicides can affect ecosystems both on site, and at great distances. Even though individual land uses may not significantly degrade environmental components such as soil productivity, water quality, or aquatic habitat, the combined effects of several activities may be unacceptable. Theoretically , cumulative effects of land management may also provide benefits to portions of ecosystems, such as increased stream productivity generated by nutrient inputs. Cumulative effects of land management must also be evaluated within the context of natural processes and events, such as large storms, wild fire, geochemical weathering, vegetation succession. This overview provides examples of cumulative effects of land management and introduces the papers that were presented at a special symposium held during the American Society of Agronomy meetings in 1989. (Author's abstract) JF - Journal of Environmental Quality JEVQAA, Vol. 20, No. 1, p 1-3, January/March 1991. 27 ref. AU - Sidle, R C AU - Sharpley, AN AD - USDA-For Serv. Intermountain Res. Sta., 860 N. 1200 East Logan, UT 84321 Y1 - 1991/01// PY - 1991 DA - Jan 1991 KW - Water Resources Abstracts KW - Ecological effects KW - Environmental effects KW - Land management KW - Land use KW - Agricultural practices KW - Construction KW - Cultivation KW - Grazing KW - Herbicides KW - Logging KW - Nutrients KW - Pesticides KW - SW 2060:Effects on water of human nonwater activities UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19121887?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Cumulative+Effects+of+Land+Management+on+Soil+and+Water+Resources%3A+An+Overview&rft.au=Sidle%2C+R+C%3BSharpley%2C+AN&rft.aulast=Sidle&rft.aufirst=R&rft.date=1991-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Probability of Sediment Yields from Surface Erosion on Granitic Roadfills in Idaho AN - 19107223; 9109333 AB - A series of 29 bordered plots, 1.8 m wide by 4.6 m long, was used to measure sediment yields from granitic roadfills on forest roads in the mountains of Idaho. Slope gradients on the plots ranged from 34 to 41 deg. Sediment yield data for the snowfree season were collected for 3 yr following road construction. Various site factors were tested by regression analysis for their effects on sediment yield, but only ground cover density and snowfree period rainfall erosivity were statistically significant. Analysis of 22 yr of snowfree period rainfall erosivity data showed that erosivity was log-normal distributed, and established the parameters for the probability density function. These data, coupled with the prediction equation from the regression model, were used in a Monte Carlo simulation model to define the probability of occurrence of sediment yields from granitic roadfills, given various levels of ground cover density. A prediction equation based on ground cover density and the snow free period erosivity index explained 55% of the variance in sediment yields. Recently published studies that update the slope gradient and slope length components of the Universal Soil Loss Equation were then used to extrapolate the results of the present study to all lengths and gradients of granitic roadfills. Roads associated with forest management activities were found to be the primary cause for serious downstream cumulative effects of sedimentation in the Idaho Batholith. Erosion control treatments such as the application of mulches, must accomplish site protection during the high erosion period before vegetation has had a chance to become established. (Doyle-PTT) JF - Journal of Environmental Quality JEVQAA, Vol. 20, No. 1, p 53-60 , January/March 1991. 2 fig, 2 tab, 32 ref. AU - Megahan, W F AU - Monsen, S B AU - Wilson, MD AD - Intermountain Research Station, Forest Service, USDA, 316 East Myrtle Street, Boise, ID 83702 Y1 - 1991/01// PY - 1991 DA - Jan 1991 KW - Water Resources Abstracts KW - Environmental effects KW - Erosion control KW - Idaho KW - Model studies KW - Roads KW - Sediment erosion KW - Sediment yield KW - Erosion KW - Road construction KW - Rock fill KW - Runoff KW - Sediment control KW - Simulation models KW - Statistical analysis KW - Stream degradation KW - SW 2060:Effects on water of human nonwater activities KW - SW 0870:Erosion and sedimentation KW - SW 2080:Watershed protection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19107223?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Probability+of+Sediment+Yields+from+Surface+Erosion+on+Granitic+Roadfills+in+Idaho&rft.au=Megahan%2C+W+F%3BMonsen%2C+S+B%3BWilson%2C+MD&rft.aulast=Megahan&rft.aufirst=W&rft.date=1991-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - CONF T1 - Outdoor recreation and global climate change: Resource management implications for behaviors, planning, and management AN - 16959127; 3809631 AB - Global climate change is of great concern for a substantial portion of the earth's population. A growing body of evidence suggests that global climate changes will affect future outdoor recreation opportunities and patterns of behavior. These changes will influence both the site and the user of the outdoor environment. This paper provides an overview of how global climate changes may affect outdoor recreation and potential strategies for dealing with these changes. JF - Society and Natural Resources AU - Ewert, A W Y1 - 1991 PY - 1991 DA - 1991 SP - 365 EP - 377 VL - 4 IS - 4 KW - Pollution Abstracts KW - recreation areas KW - environment management KW - resource management KW - climatic changes KW - P 9000:ENVIRONMENTAL ACTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16959127?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Society+and+Natural+Resources&rft.atitle=Outdoor+recreation+and+global+climate+change%3A+Resource+management+implications+for+behaviors%2C+planning%2C+and+management&rft.au=Ewert%2C+A+W&rft.aulast=Ewert&rft.aufirst=A&rft.date=1991-01-01&rft.volume=4&rft.issue=4&rft.spage=365&rft.isbn=&rft.btitle=&rft.title=Society+and+Natural+Resources&rft.issn=08941920&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Nitrogen effects on soil water extraction by tall fescue in northern Appalachia AN - 16812829; 3758704 AB - In the Appalachian region of the northeastern United States, droughty conditions in hill-land soils can cause moisture stress in and reduce yields of pasture grasses. The effect of N fertilization of tall fescue (Festuca arundinacea Schreb.) on the water extraction from shale soils commonly found in hill-land pastures in the Northeast was investigated. Tall fescue was grown on three shale-derived soils with total available water-holding capacities of 25.3, 14.4, and 4.9 cm. Nitrogen was applied at the rate of 0, 90, and 180 kg/ha of N in a split application (50% in the spring and 50% after the first harvest). Nitrogen fertilization increased soil water extraction by tall fescue only at soil water storage capacities of 250 mm or more of available water. On soils with less than 250 mm of available water storage capacity, tall fescue was able to exploit the soil water reserves with native amounts of N, but above-ground biomass and water use efficiency was improved with N fertilization. (DBO) JF - Journal of Soil and Water Conservation AU - Stout, W L AU - Shaffer, JA AU - Jung, G A AU - Staley, TE AU - Hill, RR Jr AD - U.S. Reg. Pasture Res. Lab., ARS-USDA, Univ. Park, PA 16802, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 150 EP - 152 VL - 46 IS - 2 SN - 0022-4561, 0022-4561 KW - effects on KW - nitrogen KW - USA, Appalachian Region KW - Ecology Abstracts KW - water KW - Festuca arundinacea KW - extraction KW - soil KW - D 04636:Grasses UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16812829?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Soil+and+Water+Conservation&rft.atitle=Nitrogen+effects+on+soil+water+extraction+by+tall+fescue+in+northern+Appalachia&rft.au=Stout%2C+W+L%3BShaffer%2C+JA%3BJung%2C+G+A%3BStaley%2C+TE%3BHill%2C+RR+Jr&rft.aulast=Stout&rft.aufirst=W&rft.date=1991-01-01&rft.volume=46&rft.issue=2&rft.spage=150&rft.isbn=&rft.btitle=&rft.title=Journal+of+Soil+and+Water+Conservation&rft.issn=00224561&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Festuca arundinacea; soil; water; extraction ER - TY - JOUR T1 - Detection of antibiotic and sulfonamide residues in bob veal calf tissues: 967 Cases (1987-1988) AN - 16801493; 3548803 AB - The data an antimicrobials in bob veal calves obtained by USDA-Food Safety Inspection Service (FSIS) during the fiscal year 1988 were reviewed. Of 3,095 calf antibiotic and sulfonamide test (cast)-positive carcass submissions, 967 were chosen by FSIS for antimicrobial residue analyses. Specimens of muscle, liver, and kidney were obtained at abattoirs as a part of the FSIS program, and the results were reviewed by calf submission. At least 1 tissue from each of 425 submissions contained neomycin. Unidentified microbial inhibitors were found in 291 submissions. Streptomycin was found in 86 carcass submissions, penicillin in 81, sulfamethazine in 73, tetracycline HCl in 59, and gentamicin in 53. Other monitored agents were found in < 50 submissions each. Only 257 submissions included evaluation for sulfonamides, but sulfamethazine was found in 28.4% of them. Chloramphenicol was not detected. JF - Journal of the American Veterinary Medical Association AU - Wilson, D J AU - Norman, B B AU - Franti, CE AD - U.S. Meat Anim. Res. Cent., USDA/ARS, P.O. Box 166, Clay Center, NE 68933, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 759 EP - 766 VL - 199 IS - 6 SN - 0003-1488, 0003-1488 KW - antibiotics KW - sulfonamides KW - cattle KW - Toxicology Abstracts KW - residues KW - meat KW - X 24120:Food, additives & contaminants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16801493?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Veterinary+Medical+Association&rft.atitle=Detection+of+antibiotic+and+sulfonamide+residues+in+bob+veal+calf+tissues%3A+967+Cases+%281987-1988%29&rft.au=Wilson%2C+D+J%3BNorman%2C+B+B%3BFranti%2C+CE&rft.aulast=Wilson&rft.aufirst=D&rft.date=1991-01-01&rft.volume=199&rft.issue=6&rft.spage=759&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Veterinary+Medical+Association&rft.issn=00031488&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - residues; meat ER - TY - JOUR T1 - Light requirements for growth of monoecious hydrilla from the Potomac River AN - 16750054; 3523996 AB - Estimates from laboratory and aquarium studies were obtained of light compensation levels for the race of monoecious hydrilla [Hydrilla verticillata (L.f.) Royle] established in the Potomac River and of the effects of reduced light levels on plant growth and development. Results of this investigation indicate that hydrilla growth is retarded at Photosynthetically Active Radiation (PAR) levels below 100 mu e/m super(2)/sec. This is approximately equivalent to Secchi disc transparency, which is 5% of incident solar PAR. Results suggest that depth and areal distribution of hydrilla in the Potomac River will be restricted to the limnetic zone. Growth should not occur below 1% of incident solar PAR, and probably will not occur below the 5% level. JF - Florida Scientist AU - Steward, K K AD - Aquat. Plant Manage. Lab., Agric. Res. Serv., USDA, 3205 College Ave., Ft. Lauderdale, FL 33314, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 204 EP - 214 VL - 54 IS - 3-4 SN - 0098-4590, 0098-4590 KW - range extension KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - light effects KW - USA, Potomac R. KW - aquatic plants KW - USA, Virginia KW - Freshwater KW - Hydrilla verticillata KW - light penetration KW - growth KW - D 04640:Other angiosperms KW - Q1 08221:General KW - Q1 08422:Environmental effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16750054?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Florida+Scientist&rft.atitle=Light+requirements+for+growth+of+monoecious+hydrilla+from+the+Potomac+River&rft.au=Steward%2C+K+K&rft.aulast=Steward&rft.aufirst=K&rft.date=1991-01-01&rft.volume=54&rft.issue=3-4&rft.spage=204&rft.isbn=&rft.btitle=&rft.title=Florida+Scientist&rft.issn=00984590&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - light effects; aquatic plants; growth; light penetration; range extension; Hydrilla verticillata; USA, Potomac R.; USA, Virginia; Freshwater ER - TY - JOUR T1 - Growth of various hydrilla races in waters of differing pH AN - 16749482; 3523060 AB - Fifteen races of hydrilla [Hydrilla verticillata (L.f.) Royle], collected throughout its geographical range, were grown for 5 weeks in natural water with the pH adjusted to 5, 7 and 9. Growth varied between as well as within races in response to individual pH. The largest growth increase occurred within the pH 7 treatment. A 700% difference occurred among races between the high and low ends of the response range. Growth response varied 5-fold between races at pH 5 and pH 9. Maximum growth of each race occurred at pH 7. Next best growth occurred at pH 5 with inhibition occurring in only 2 of 15 races. Reduced growth in 10 of 15 races at pH 9 may have been related to reduced free carbon dioxide supplies. Because growth was not completely inhibited is evidence that bicarbonate utilization mitigated the effects of limited availability of free carbon dioxide. Plants from the highly productive Queensland and Bangalore races exhibited a high tolerance for diverse pH. This indicates an ability to adapt, to colonize diverse habitats and to become more serious pests than races already established in the U.S. JF - Florida Scientist AU - Steward, K K AD - ARS-USDA, Ft. Lauderdale, FL 33314, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 117 EP - 125 VL - 54 IS - 2 SN - 0098-4590, 0098-4590 KW - freshwater weeds KW - races KW - water pH KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts KW - aquatic plants KW - Freshwater KW - introduced species KW - Hydrilla verticillata KW - subpopulations KW - tolerance KW - pH effects KW - growth KW - Q1 08443:Population genetics KW - D 04640:Other angiosperms KW - Q1 08226:Physiology, biochemistry, biophysics KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16749482?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Florida+Scientist&rft.atitle=Growth+of+various+hydrilla+races+in+waters+of+differing+pH&rft.au=Steward%2C+K+K&rft.aulast=Steward&rft.aufirst=K&rft.date=1991-01-01&rft.volume=54&rft.issue=2&rft.spage=117&rft.isbn=&rft.btitle=&rft.title=Florida+Scientist&rft.issn=00984590&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - subpopulations; tolerance; aquatic plants; pH effects; introduced species; freshwater weeds; growth; water pH; races; Hydrilla verticillata; Freshwater ER - TY - JOUR T1 - Effects on plant growth of the HMG-CoA synthase inhibitor, 1233A/F-244/L-659,699, isolated from Scopulariopsis candidus AN - 16734644; 3517701 AB - While examining microorganisms for biologically active natural products, we isolated Scopulariopsis candidus (Accession No. UK 159 RRC) from sunflower seeds. Upon solid fermentation, this organism yielded the beta -lactone, (E,E)-11-[3'-(hydroxymethyl) 4'-oxo-2'-oxetanyl] 3,5,7-trimethyl-2,4-undecanoic acid, in a large quantity. This compound was originally obtained from an apparent Cephalosporium sp. and designated Antibiotic 1233A. Later, the same compound was isolated from an unspecified Scopulariopsis and from a Fusarium sp. Our report describes the effects of this metabolite and its synthetic tetrahydro derivative on the growth of plants and microorganisms. JF - Agricultural and Biological Chemistry AU - Jacyno, J M AU - Cutler, H G AU - Roberts, R G AU - Waters, R M AD - USDA-ARS, Richard B. Russell Cent., Athens, GA 30613, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 3129 EP - 3131 VL - 55 IS - 12 SN - 0916-8451, 0916-8451 KW - HMG-CoA synthase KW - 1233A/F-244/L-659,699 KW - Scopulariopsis candidus KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - inhibitors KW - A 01014:Others UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16734644?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Agricultural+and+Biological+Chemistry&rft.atitle=Effects+on+plant+growth+of+the+HMG-CoA+synthase+inhibitor%2C+1233A%2FF-244%2FL-659%2C699%2C+isolated+from+Scopulariopsis+candidus&rft.au=Jacyno%2C+J+M%3BCutler%2C+H+G%3BRoberts%2C+R+G%3BWaters%2C+R+M&rft.aulast=Jacyno&rft.aufirst=J&rft.date=1991-01-01&rft.volume=55&rft.issue=12&rft.spage=3129&rft.isbn=&rft.btitle=&rft.title=Agricultural+and+Biological+Chemistry&rft.issn=09168451&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - inhibitors ER - TY - JOUR T1 - Competitive interaction between monoecious hydrilla and American eelgrass on sediments of varying fertility AN - 16703639; 3533995 AB - Monoecious hydrilla [Hydrilla verticillata (L.f.) Royle] from the Potomac River and American eelgrass (Vallisneria americana Michx.) were grown in monoculture and in mixed culture on aquatic sediments of decreasing fertility to assess their ability to compete for nutrients. Biomass yield in hydrilla decreased with decreasing fertility and increased an average of 45% when grown intermixed with eelgrass. This was interpreted as evidence of within species competition. Biomass yield only decreased in eelgrass when grown on sand, evidence of lower nutrient requirements than hydrilla. Sediment fertility had little effect on nutrient concentrations in tissues, except that concentrations were depressed when plants were grown on sand alone. Reduced growth of hydrilla was not related to tissue concentrations of measured nutrients. Nutrient accumulation in plant tissues was most closely related to dry weight and was greatest in hydrilla. Potassium accumulation in plant tissues exceeded supplies in sediments indicating potassium uptake occurred from ambient water. Sediment potassium concentrations were increased by plant growth in some sediment treatments. JF - Florida Scientist AU - Steward, K K AD - Aquat. Plant Manage. Lab., ARS-USDA, Ft. Lauderdale, FL 33314, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 135 EP - 147 VL - 54 IS - 3-4 SN - 0098-4590, 0098-4590 KW - nutrient availability KW - nutrients (mineral) KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - biomass KW - aquatic plants KW - Freshwater KW - sediment chemistry KW - Hydrilla verticillata KW - USA KW - interspecific relationships KW - Vallisneria americana KW - competition KW - Q1 08483:Species interactions: general KW - D 04640:Other angiosperms KW - Q1 08221:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16703639?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Florida+Scientist&rft.atitle=Competitive+interaction+between+monoecious+hydrilla+and+American+eelgrass+on+sediments+of+varying+fertility&rft.au=Steward%2C+K+K&rft.aulast=Steward&rft.aufirst=K&rft.date=1991-01-01&rft.volume=54&rft.issue=3-4&rft.spage=135&rft.isbn=&rft.btitle=&rft.title=Florida+Scientist&rft.issn=00984590&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - interspecific relationships; biomass; aquatic plants; nutrients (mineral); sediment chemistry; competition; nutrient availability; Vallisneria americana; Hydrilla verticillata; USA; Freshwater ER - TY - JOUR T1 - Biological activity of (-)-harzianopyridone isolated from Trichoderma harzianum AN - 16703258; 3534296 AB - We report some of the biological properties of a laevorotatory sample, of unknown optical purity, of harzianopyridone. JF - Agricultural and Biological Chemistry AU - Cutler, H G AU - Jacyno, J M AD - USDA-ARS, Richard B. Russell Res. Cent., Athens, GA 30613, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 2629 EP - 2631 VL - 55 IS - 10 SN - 0916-8451, 0916-8451 KW - harzianopyridone KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - isolation KW - Trichoderma harzianum KW - biological activity KW - A 01014:Others UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16703258?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Agricultural+and+Biological+Chemistry&rft.atitle=Biological+activity+of+%28-%29-harzianopyridone+isolated+from+Trichoderma+harzianum&rft.au=Cutler%2C+H+G%3BJacyno%2C+J+M&rft.aulast=Cutler&rft.aufirst=H&rft.date=1991-01-01&rft.volume=55&rft.issue=10&rft.spage=2629&rft.isbn=&rft.btitle=&rft.title=Agricultural+and+Biological+Chemistry&rft.issn=09168451&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Trichoderma harzianum; biological activity; isolation ER - TY - JOUR T1 - Artificial watershed acidification on the Fernow Experimental Forest. AN - 16662340; 3020302 AB - An artificial watershed acidification study was initiated on the Fernow Experimental Forest in December 1987. Acidification was induced by aerially applying ammonium sulfate fertilizer three times per year to a 34-ha watershed at an annual rate approximately double ambient nitrogen and sulfur inputs. A second watershed was maintained as a control. Stream water chemistry, principally during storms, and soil leachate chemistry have been monitored intensively to determine if acidification could be induced and to examine some of the biogeochemical factors involved in the acidification process. One year of pre-treatment data were collected for most parameters, and seven fertilizer applications have been made to date. Substantial information about stream chemistry responses during storms has been compiled, though stream chemistry has not been altered by the treatment. However, sulfate and nitrate concentrations in A-horizon leachate have increased since late 1989 on the treated watershed. No changes in leachate from lower horizons have been documented, probably because the B- and C-horizons are adsorbing excess anions effectively. JF - Proceedings of the West Virginia Academy of Science AU - Edwards, P J AU - Kochenderfer, J N AD - USDA Forest Serv., Northeastern Forest Exp. Stn., Timber and Watershed Lab., Parsons, WV 26287, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 72 EP - 81 VL - 63 IS - 2-4 KW - USA, West Virginia, Fernow Exp. Forest KW - soils KW - stream water chemistry KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Ecology Abstracts KW - forests KW - fertilizers KW - watersheds KW - Freshwater KW - USA KW - acidification KW - storms KW - leaching KW - Q5 08503:Characteristics, behavior and fate KW - D 04803:Pollution effects KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16662340?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+West+Virginia+Academy+of+Science&rft.atitle=Artificial+watershed+acidification+on+the+Fernow+Experimental+Forest.&rft.au=Edwards%2C+P+J%3BKochenderfer%2C+J+N&rft.aulast=Edwards&rft.aufirst=P&rft.date=1991-01-01&rft.volume=63&rft.issue=2-4&rft.spage=72&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+West+Virginia+Academy+of+Science&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - forests; soils; fertilizers; watersheds; acidification; storms; leaching; USA; Freshwater ER - TY - CONF T1 - Enhancing sport fish production in seepage lakes of the Ocala National Forest in central Florida. AN - 16658780; 3017363 AB - The Ocala National Forest contains more than 600 lakes that cover approximately 18,000 acres. Most of these water bodies are seepage lakes that are very acid, poorly buffered, and therefore very low in productivity. In 1983, 40 of 59 lakes sampled on this forest were found to be oligatrophic. Evidence suggests that these lakes had recently acidified, and that acidic deposition was a possible cause. Agricultural lime was applied experimentally by three different methods to determine the potential of this fishery management practice to mitigate acidification. Significant improvement in water quality (pH, alkalinity, and conductivity) were observed following all three application methods. Largemouth bass (Micropterus salmoides ) average weight and biomass, as catch per unit effort, also increased significantly following two of the three lime application methods. Exceptional growth of largemouth bass was observed in the small seepage lake treated with both lime and fertilizer. JF - USDA FOREST SERV., WASHINGTON, DC (USA). 1991. AU - Grinstead, B G AU - Ebaugh, W P AU - Waite, W R AU - Watkins, CE AU - Cooper, J L AU - Hamre, R H Y1 - 1991 PY - 1991 DA - 1991 PB - USDA FOREST SERV., WASHINGTON, DC (USA) KW - USA, Florida, Ocala Natl. Forest KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA Aquaculture Abstracts KW - RM-207 KW - limestone KW - Micropterus salmoides KW - fish culture KW - biological production KW - game fish KW - Freshwater KW - habitat improvement (chemical) KW - Q3 08582:Fish culture KW - Q1 08582:Fish culture UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16658780?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Enhancing+sport+fish+production+in+seepage+lakes+of+the+Ocala+National+Forest+in+central+Florida.&rft.au=Grinstead%2C+B+G%3BEbaugh%2C+W+P%3BWaite%2C+W+R%3BWatkins%2C+CE%3BCooper%2C+J+L%3BHamre%2C+R+H&rft.aulast=Grinstead&rft.aufirst=B&rft.date=1991-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 ER - TY - JOUR T1 - Inheritance of resistance to race 4 of downy mildew derived from interspecific crosses in sunflower. AN - 16653134; 3039290 AB - Race 4 of downy mildew, incited by Plasmopara halstedii (Farl.) Berl. & de Toni, was first reported in sunflower (Helianthus annuus L.) in the USA during 1985. Resistance to this race was found in lines derived from interspecific crosses of cultivated sunflower with three species of wild sunflower. The objectives of this investigation were to determine the genetic control of resistance found in the interspecific crosses and to determine if this resistance was conditioned by the same or different genes. Ratios tested utilizing a chi-square analysis for goodness of fit for F sub(2) and BC sub(1)F sub(1) generations indicated that resistance to Race 4 was conditioned by a single, dominant gene in all sources. Four lines (HA 335, HA 336, Charata R4, and Wild Ornamental) were determined to have the same resistance gene Pl super(6). HA 335 and HA 336 were derived from wild H. annuus) 423 and H. annuus 432, respectively. The resistance gene in HA 339, derived from H. praecox Engelm. & Gray ssp. runyonii , proved to be different and was designated Pl super(7). The resistance gene in RHA 340, distinct from Pl super(6) and Pl super(7) and derived from H. argophyllus) Torrey & Gray, was designated Pl super(8). Using divergent resistance genes in sunflower commercial hybrids should decrease genetic vulnerability to changes in pathogenicity of downy mildew. However, additional wild species of sunflower should be collected and tested to identify new sources of resistance to downy mildew. JF - Crop Science AU - Miller, J F AU - Gulya, T J AD - USDA-ARS Oilseeds Res. Unit, Dep. Crop Weed Sci. ND State Univ., Fargo, ND 58105, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 40 EP - 43 VL - 31 IS - 1 SN - 0011-183X, 0011-183X KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Genetics Abstracts KW - genes KW - cross-breeding KW - inheritance KW - Plasmopara halstedii KW - resistance KW - Helianthus annuus KW - A 01028:Others KW - G 07352:Dicotyledons (miscellaneous) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16653134?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Inheritance+of+resistance+to+race+4+of+downy+mildew+derived+from+interspecific+crosses+in+sunflower.&rft.au=Miller%2C+J+F%3BGulya%2C+T+J&rft.aulast=Miller&rft.aufirst=J&rft.date=1991-01-01&rft.volume=31&rft.issue=1&rft.spage=40&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Plasmopara halstedii; Helianthus annuus; resistance; inheritance; genes; cross-breeding ER - TY - JOUR T1 - Enzymatic conversion of beta -carotene into beta -apocarotenals and retinoids by human monkey, ferret, and rat tissues. AN - 16637690; 2940603 AB - Whether the conversion of beta -carotene into retinoids involves an enzymatic excentric cleavage mechanism was examined in vitro with homogenates prepared from human, monkey, ferret, and rat tissue. Using high-performance liquid chromatography, significant amounts of beta -apo-12'-, -10'-, and -8'-carotenals, retinal, and retinoic acid were found after incubation of intestinal homogenates of the four different species with beta -carotene in the presence of NAD super(+) and dithiothreitol. No beta -apo-carotenals or retinoids were detected in control incubations done without tissue homogenates. (DBO) JF - Archives of Biochemistry and Biophysics AU - Wang, Xiang-Dong AU - Tang, Guang-Wen AU - Fox, J G AU - Krinsky, NI AU - Russell, R M AD - USDA Hum. Nutr. Res. Cent., 711 Washington St., Boston, MA 02111, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 8 EP - 16 VL - 285 IS - 1 SN - 0003-9861, 0003-9861 KW - Mustela putorius KW - beta -apocarotenals KW - carotene KW - conversion KW - man KW - mechanisms KW - monkeys KW - pathways KW - rats KW - retinoids KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16637690?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Archives+of+Biochemistry+and+Biophysics&rft.atitle=Enzymatic+conversion+of+beta+-carotene+into+beta+-apocarotenals+and+retinoids+by+human+monkey%2C+ferret%2C+and+rat+tissues.&rft.au=Wang%2C+Xiang-Dong%3BTang%2C+Guang-Wen%3BFox%2C+J+G%3BKrinsky%2C+NI%3BRussell%2C+R+M&rft.aulast=Wang&rft.aufirst=Xiang-Dong&rft.date=1991-01-01&rft.volume=285&rft.issue=1&rft.spage=8&rft.isbn=&rft.btitle=&rft.title=Archives+of+Biochemistry+and+Biophysics&rft.issn=00039861&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 ER - TY - CONF T1 - Innovative techniques for warmwater stream management. AN - 16602706; 3017288 AB - The southern United States contains thousands of kilometers of warmwater streams, a minority of these are actively managed. Past survey strategies for these streams primarily considered water quality and quantity, instream and riparian habitat, and fish and aquatic populations independently, without considering the relationship of one to the other. Beginning in the mid-1980's a shift to a more holistic management philosophy evolved as fisheries biologists began to implement western stream survey methodologies with southern modifications to entire watershed basins. Basin-wide survey and stream monitoring procedures have recently been developed to evaluate warmwater stream fisheries in several southern states. Case studies on several warmwater streams are reported to give some idea of the scale of projects currently under management. JF - USDA FOREST SERV., WASHINGTON, DC (USA). 1991. AU - Ebert, D J AU - Filipek, S P AU - Seehorn, ME AU - Cooper, J L AU - Hamre, R H Y1 - 1991 PY - 1991 DA - 1991 PB - USDA FOREST SERV., WASHINGTON, DC (USA) KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA Aquaculture Abstracts KW - RM-207 KW - USA KW - ecosystem management KW - fishery management KW - Freshwater KW - environmental surveys KW - methodology KW - river fisheries KW - Q3 08581:Aquaculture: General KW - Q1 08581:General KW - Q5 08522:Protective measures and control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16602706?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Innovative+techniques+for+warmwater+stream+management.&rft.au=Ebert%2C+D+J%3BFilipek%2C+S+P%3BSeehorn%2C+ME%3BCooper%2C+J+L%3BHamre%2C+R+H&rft.aulast=Ebert&rft.aufirst=D&rft.date=1991-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 ER - TY - JOUR T1 - Insert copy number, chromosome number, pollen stainability, and crossability of Agrobacterium -transformed diploid potato. AN - 16591690; 3023506 AB - Two 2n-pollen producing cultivated diploid, 2n=24, potato genotypes DM56.4 and US-W5337.3 were inoculated with binary Agrobacterium vectors. The T-DNA contained a neomycin phosphotransferase II coding region fused to a nopaline synthase promoter providing gene expression in plants and resistance to kanamycin. A total of 28 clones regenerated as adventitious shoots from callus tissue, growing on medium with kanamycin, was analyzed for chromosome number, pollen stainability, and crossability. Several clones were tested and found to retain crossability with diploid and tetraploid clones. Nine out of 10 of the regenerants from DM56.4 had been doubled; seven of these were tetraploids with 2n=48, one clone had 2n=49, and another 2n=46. Five of 14 regenerants of US-W5337.3 had been doubled, and three of these had fewer than 2n=48. Pollen stainability revealed that the tetraploid regenerants from DM56.4 were male sterile, whereas tetraploids from US-W5337.3 had stainable pollen. All of the diploid regenerants produced 2n pollen. Crossability of several diploid and tetraploid regenerants was high. The number of T-DNA inserts revealed by Southern blot analysis was also determined. Six, 10, and 9 regenerants had 1, 2, and 3 inserts of T-DNA, respectively. There were single regenerants each with 5, 6, or 7 inserts. Selection for higher insert number among regenerants should be feasible based on the range of insert number found. Identical restriction patterns within three groups of clones indicated that the 28 clones analyzed emerged from only 21 cells derived from independent transformation events. The variability in chromosome number and pollen stainability suggests that variation in other traits would be obtainable. JF - American Potato Journal AU - Brown, C R AU - Yang, C-P AU - Kwiatkowski, S AU - Adiwilaga, K D AD - ARS, USDA, and Washington State Univ. Agric. Res. Cent., Prosser, WA 99350, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 317 EP - 330 VL - 68 IS - 5 SN - 0003-0589, 0003-0589 KW - Microbiology Abstracts B: Bacteriology KW - Agrobacterium KW - cross-pollination KW - pollen KW - staining KW - diploids KW - karyotypes KW - Solanum tuberosum KW - copy number control KW - transformation KW - J 02901:Soil and plants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16591690?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Potato+Journal&rft.atitle=Insert+copy+number%2C+chromosome+number%2C+pollen+stainability%2C+and+crossability+of+Agrobacterium+-transformed+diploid+potato.&rft.au=Brown%2C+C+R%3BYang%2C+C-P%3BKwiatkowski%2C+S%3BAdiwilaga%2C+K+D&rft.aulast=Brown&rft.aufirst=C&rft.date=1991-01-01&rft.volume=68&rft.issue=5&rft.spage=317&rft.isbn=&rft.btitle=&rft.title=American+Potato+Journal&rft.issn=00030589&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Solanum tuberosum; Agrobacterium; diploids; transformation; cross-pollination; copy number control; karyotypes; pollen; staining ER - TY - JOUR T1 - Positive identification of a lambda gt11 clone containing a region of fungal phytase gene by immunoprobe and sequence verification. AN - 16520807; 2960342 AB - As the initial step in a project to provide a more cost-effective source of the phytase enzyme, this paper reports on the use of a polyclonal antibody raised to phytase purified from an isolate of Aspergillus niger (A. ficuum) to screen an A. niger lambda gt11 expression library and the use of amino acid sequencing to identify a clone containing part of the fungal phytase gene. The described use of amino acid sequence fragments to verify the cloning of a gene has potential applications in other cloning projects. JF - Applied Microbiology and Biotechnology AU - Mullaney, E J AU - Gibson, D M AU - Ullah, AHJ AD - USDA, ARS, South. Reg. Res. Cent., 1100 Robert E. Lee Blvd., New Orleans, LA 70124, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 611 EP - 614 VL - 35 IS - 5 SN - 0175-7598, 0175-7598 KW - gene KW - phytase KW - Biotechnology and Bioengineering Abstracts; Medical and Pharmaceutical Biotechnology Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - identification KW - amino acid sequence KW - Aspergillus niger KW - K 03079:Fungi KW - W3 33310:Enzymes and cofactors KW - K 03020:Fungi KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16520807?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Microbiology+and+Biotechnology&rft.atitle=Positive+identification+of+a+lambda+gt11+clone+containing+a+region+of+fungal+phytase+gene+by+immunoprobe+and+sequence+verification.&rft.au=Mullaney%2C+E+J%3BGibson%2C+D+M%3BUllah%2C+AHJ&rft.aulast=Mullaney&rft.aufirst=E&rft.date=1991-01-01&rft.volume=35&rft.issue=5&rft.spage=611&rft.isbn=&rft.btitle=&rft.title=Applied+Microbiology+and+Biotechnology&rft.issn=01757598&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - amino acid sequence; identification; Aspergillus niger ER - TY - JOUR T1 - Effects of global climatic change on forests in northwestern North America. AN - 16485331; 2938551 AB - The probable effects of some potential changes in regional climate are explored for the coniferous forests of the Pacific Northwest. The authors predict patterns of vegetational shifts, based on the output from computer simulations and from paleobotanical data on change during the Holocene (when climate was similar to that predicted for the near future). Conclusions are drawn about the responses of established forests in dry versus moist habitats, northern versus southern latitudes, and interior versus coastal environments. An emphasis is made on management needs required to save biodiversity in the region. JF - NORTHWEST ENVIRON. J. AU - Franklin, J F AU - Swanson, F J AU - Harmon, ME AU - Perry, DA AU - Spies, T A AU - Dale, V H AU - McKee, A AU - Ferrell, W K AU - Means, JE AD - USDA For. Serv., Pac. Northwest Res. Stn., Coll. For. Resour., Univ. Washington, Seattle, WA 98195, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 233 EP - 254 VL - 7 IS - 2 KW - effects on KW - Pollution Abstracts; Ecology Abstracts KW - forests KW - USA, Pacific Northwest KW - climatic changes KW - resource management KW - global warming KW - P 5000:LAND POLLUTION KW - D 04125:Temperate forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16485331?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=NORTHWEST+ENVIRON.+J.&rft.atitle=Effects+of+global+climatic+change+on+forests+in+northwestern+North+America.&rft.au=Franklin%2C+J+F%3BSwanson%2C+F+J%3BHarmon%2C+ME%3BPerry%2C+DA%3BSpies%2C+T+A%3BDale%2C+V+H%3BMcKee%2C+A%3BFerrell%2C+W+K%3BMeans%2C+JE&rft.aulast=Franklin&rft.aufirst=J&rft.date=1991-01-01&rft.volume=7&rft.issue=2&rft.spage=233&rft.isbn=&rft.btitle=&rft.title=NORTHWEST+ENVIRON.+J.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - USA, Pacific Northwest; global warming; climatic changes; forests; resource management ER - TY - JOUR T1 - Non-random mating between Boophilus microplus and hybrids of B. microplus females and B. annulatus males, and its possible effect on sterile male hybrid control releases. AN - 16461487; 2924519 AB - When Boophilus microplus and Type-II hybrids (B. microplus females x B. annulatus males) were released simultaneously onto bovine hosts, mating between the two forms appeared not to be at random. There were more contypic and fewer intertypic matings than predicted under an assumption of panmixia. An examination of the patterns of matings revealed that more of the matings on the first two days of detachment were between the two sexes of B. microplus . Engorged females dropping on the last four days of maximum female detachment were predominantly hybrids mated to both B. microplus and hybrid males. The non-random mating pattern does not appear to be caused by assortative mating between B. microplus and Type-II hybrids, but because the B. microplus were competent to mate two days before the hybrids and the B. microplus males compete for males of both types better than the Type-II males. JF - Experimental and Applied Acarology AU - Hilburn, L R AU - Davey, R B AU - George, JE AU - Mathews Pound, J AD - Knipling-Bushland U.S. Livest. Insects Res. Lab., USDA-ARS, Kerrville, TX 78029-0232, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 23 EP - 36 VL - 11 IS - 1 SN - 0168-8162, 0168-8162 KW - non-random mating KW - Biotechnology and Bioengineering Abstracts; Animal Behavior Abstracts; Entomology Abstracts; Agricultural and Environmental Biotechnology Abstracts KW - Boophilus annulatus KW - hybrids KW - pest control KW - Boophilus microplus KW - Ixodidae KW - sterile-release KW - interference KW - Acari KW - mating KW - interspecific hybridization KW - Y 25422:Invertebrates (excluding insects) KW - Y 25882:Invertebrates (excluding insects) KW - Z 05206:Medical & veterinary entomology KW - W2 32445:Pest control KW - W 30965:Miscellaneous, Reviews KW - Z 05192:Reproductive behavior UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16461487?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Experimental+and+Applied+Acarology&rft.atitle=Non-random+mating+between+Boophilus+microplus+and+hybrids+of+B.+microplus+females+and+B.+annulatus+males%2C+and+its+possible+effect+on+sterile+male+hybrid+control+releases.&rft.au=Hilburn%2C+L+R%3BDavey%2C+R+B%3BGeorge%2C+JE%3BMathews+Pound%2C+J&rft.aulast=Hilburn&rft.aufirst=L&rft.date=1991-01-01&rft.volume=11&rft.issue=1&rft.spage=23&rft.isbn=&rft.btitle=&rft.title=Experimental+and+Applied+Acarology&rft.issn=01688162&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - hybrids; pest control; sterile-release; interference; mating; interspecific hybridization; Boophilus annulatus; Boophilus microplus; Ixodidae; Acari ER - TY - JOUR T1 - Environmental gradients affect forest composition in the Luquillo Mountains of Puerto Rico. AN - 16412015; 2891887 AB - Twenty-five groups of 2 plots stratified by topography (ridge, slope and valley) were established at 50-m elevational increments between 620 and 970 m elevation in the Colorado forest of the Luquillo Mountains in Puerto Rico. Reciprocal averaging ordinations of the sample plot data produced groupings by topography, aspect and elevation. Reciprocal averaging also indicated environmental preferences for 39 tree species in a complex, montane habitat. Direct gradient analyses of 20 common tree species also showed topographic, aspectual and elevational preferences within the mountains. JF - Interciencia. Caracas AU - Weaver, P L AD - Inst. Trop. For., Southern Forest Exp. Stn., USDA For. Serv., Call Box 25000, Rio Piedras, PR 00928, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 142 EP - 151 VL - 16 IS - 3 SN - 0378-1844, 0378-1844 KW - effects on KW - Puerto Rico, Luquillo Mts. KW - Ecology Abstracts KW - tropical environment KW - species composition KW - environmental conditions KW - rain forests KW - gradients KW - D 04126:Tropical forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16412015?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Interciencia.+Caracas&rft.atitle=Environmental+gradients+affect+forest+composition+in+the+Luquillo+Mountains+of+Puerto+Rico.&rft.au=Weaver%2C+P+L&rft.aulast=Weaver&rft.aufirst=P&rft.date=1991-01-01&rft.volume=16&rft.issue=3&rft.spage=142&rft.isbn=&rft.btitle=&rft.title=Interciencia.+Caracas&rft.issn=03781844&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - tropical environment; rain forests; environmental conditions; gradients; species composition ER - TY - JOUR T1 - WEPP. Soil erodibility experiments for rangeland and cropland soils. AN - 16406644; 2884137 AB - The Water Erosion Prediction Project (WEPP) combines knowledge of soil erosion processes with other important processes in a simulation model to predict soil erosion by water. WEPP models soil erosion as a process of rill and interrill detachment and transport. This is much different than the universal soil loss equation (USLE), in which the factors understood to affect soil erosion were quantified in an empirical technology. Because WEPP deals with soil erosion prediction in a different manner than the USLE, new soil erodibility parameters are required. This was identified early in the project as a critical component for the successful development of the WEPP technology. JF - Journal of Soil and Water Conservation AU - Laflen, J M AU - Elliot, W J AU - Simanton, J R AU - Holzhey, C S AU - Kohl, K D AD - Natl. Soil Erosion Res. Lab., Agric. Res. Serv., USDA, West Lafayette, IN 47907, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 39 EP - 44 VL - 46 IS - 1 SN - 0022-4561, 0022-4561 KW - erosion control KW - soils KW - Pollution Abstracts; Health & Safety Science Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - erosion KW - agriculture KW - mathematical models KW - soil erosion KW - land use KW - Q2 09123:Conservation KW - P 5000:LAND POLLUTION KW - H SE6.28:LANDSLIDES AND EROSION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16406644?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Soil+and+Water+Conservation&rft.atitle=WEPP.+Soil+erodibility+experiments+for+rangeland+and+cropland+soils.&rft.au=Laflen%2C+J+M%3BElliot%2C+W+J%3BSimanton%2C+J+R%3BHolzhey%2C+C+S%3BKohl%2C+K+D&rft.aulast=Laflen&rft.aufirst=J&rft.date=1991-01-01&rft.volume=46&rft.issue=1&rft.spage=39&rft.isbn=&rft.btitle=&rft.title=Journal+of+Soil+and+Water+Conservation&rft.issn=00224561&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - soils; erosion; erosion control; agriculture; mathematical models; soil erosion; land use ER - TY - JOUR T1 - Potassium and aldicarb-disulfoton effects on Verticillium wilt, yield, and quality of cotton. AN - 16396053; 2882934 AB - Optimum cotton (Gossypium hirsutum L.) yield with good fiber quality requires healthy vigorous plants throughout the season. Recently, verticillium wilt (Verticillium dahliae Kleb.) and K deficiency symptoms occurred during August and September in cotton grown on sandy loam soils of the Mississippi Delta. Symptoms developed earlier and faster in some cultivars compared with others. In a field study, applications of K and pesticides on verticillium wilt-K deficiency symptoms, yield and fiber quality of "DES 119" and "Stoneville 825" cottons were evaluated. Broadcast application and topsoil incorporation of 112 kg K ha super(-1) yr super(-1) reduced verticillium wilt-K deficiency symptoms from 12 to 7%, averaged across both cultivars, but did not affect lint yield. The root-gall (caused by Meloidogyne incognita (Kofoid & White) Chitwood) index was reduced from 2.7 to 2.5 and from 2.7 to 2.4 by K and aldicarb-PCNB-ETMT (5% 2-methyl-2-(methylthio)propionaldehyde-O-(methylcarbamoyl)oxime + 10% pentachloronitrobenzene + 2.5% 5-ethoxy-3-(trichloromethyl)-1,2,4-thiodiazole; 0.56 + 1.12 + 0.28 kg a.i. ha super(-1)), respectively. JF - Crop Science AU - Minton, E B AU - Ebelhar, M W AD - USDA-ARS, Cotton Physiol. and Genet. Res. Unit, Stoneville, MS 38776, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 209 EP - 212 VL - 31 IS - 1 SN - 0011-183X, 0011-183X KW - potassium KW - aldicarb KW - disulfoton KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Microbiology Abstracts A: Industrial & Applied Microbiology KW - wilt KW - yield KW - quality KW - Verticillium dahliae KW - Gossypium KW - A 01028:Others KW - K 03089:Fungi: plant KW - A 01031:Antifungal & fungicidal agents UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16396053?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Potassium+and+aldicarb-disulfoton+effects+on+Verticillium+wilt%2C+yield%2C+and+quality+of+cotton.&rft.au=Minton%2C+E+B%3BEbelhar%2C+M+W&rft.aulast=Minton&rft.aufirst=E&rft.date=1991-01-01&rft.volume=31&rft.issue=1&rft.spage=209&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Gossypium; Verticillium dahliae; wilt; yield; quality ER - TY - JOUR T1 - Maize production impacts on groundwater quality. AN - 16387531; 2868406 AB - The cumulative effects of management practices on nitrate-nitrogen (NO sub(3)-N) leaching and groundwater quality are frequently difficult to document because of the time required for expression and the diversity of interacting processes involved. This work reports results of a N and water management program initiated by the Central Plate Natural Resource District (CPNRD) in Nebraska, USA. Cultural practices recommended by the CPNRD and reported by producers for the 1988 growing season, representing approximately 3900 fields covering 84,210 ha of irrigated corn indicated NO sub(3)-N contamination of groundwater was influenced by yield goals and fertilizer N application rates. Groundwater NO sub(3)-N concentrations were positively correlated with residual N in the surface 0.9 m of soil prior to the growing season, reflecting the effects of past N and water management practices. Yield goals in 1988 averaged 9% higher than the average 10.0 Mg/ha corn yield attained, which accounts for an average of about 20 kg N/ha in excess of the average N recommendation. Fertilizer N applied showed little relationship to fertilizer N recommended. Better education and more stringent measures may be required to address the select group of producers who fail to follow CPNRD recommendations. JF - Journal of Environmental Quality AU - Schepers, J S AU - Moravek, M G AU - Alberts, EE AU - Frank, K D AD - USDA-ARS, Dep. Agron., Univ. Nebraska, Lincoln, NE 68583-0915, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 12 EP - 16 VL - 20 IS - 1 SN - 0047-2425, 0047-2425 KW - government policies KW - government policy KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - agricultural pollution KW - fertilizers KW - water quality KW - nitrates KW - Freshwater KW - nitrogen KW - groundwater pollution KW - USA, Nebraska KW - leaching KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16387531?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Maize+production+impacts+on+groundwater+quality.&rft.au=Schepers%2C+J+S%3BMoravek%2C+M+G%3BAlberts%2C+EE%3BFrank%2C+K+D&rft.aulast=Schepers&rft.aufirst=J&rft.date=1991-01-01&rft.volume=20&rft.issue=1&rft.spage=12&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - agricultural pollution; water quality; fertilizers; groundwater pollution; nitrates; leaching; nitrogen; government policies; USA, Nebraska; Freshwater ER - TY - JOUR T1 - Soybean seed coat structures: Relationship to weathering resistance and infection by the fungus Phomopsis phaseoli . AN - 16384711; 2878679 AB - The fungus Phomopsis phaseoli (Desmaz.) Sacc. (syn. P. sojae Lehman) incites a serious disease of soybean (Glycine max (L.) Merr.) seeds. This study was conducted to determine if an impermeable seed coat reduces infection by this fungus. Seeds of four soybean cultivars found in blotter tests to be infected by P. phaseoli in very low amounts (0-5%) and seeds of four other cultivars with high amounts of infection by this fungus (65-83%) were studied under scanning electron microscopy. Seed coats of cultivars with low P. phaseoli infection were found to lack pores, whereas those with high infection had multiple pores. In addition, seeds of the four cultivars with low infection had closed micropyles, whereas those with high infection had relatively open micropyles. This was reflected in their measurements: closed micropyles had an average area of 0.17 mm super(2), compared with 0.44 mm super(2) for the open ones. JF - Crop Science AU - Kulik, M M AU - Yaklich, R W AD - Soybean and Alfalfa Res., Plant Sci. Inst., USDA-ARS, Beltsville, MD 20705, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 108 EP - 113 VL - 31 IS - 1 SN - 0011-183X, 0011-183X KW - Phomopsis phaseoli KW - seed coat KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - structure KW - infection KW - seeds KW - Glycine max KW - K 03089:Fungi: plant KW - A 01025:Leguminous crops UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16384711?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Soybean+seed+coat+structures%3A+Relationship+to+weathering+resistance+and+infection+by+the+fungus+Phomopsis+phaseoli+.&rft.au=Kulik%2C+M+M%3BYaklich%2C+R+W&rft.aulast=Kulik&rft.aufirst=M&rft.date=1991-01-01&rft.volume=31&rft.issue=1&rft.spage=108&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Glycine max; infection; structure; seeds ER - TY - JOUR T1 - RUSLE. Revised universal soil loss equation. AN - 16380270; 2877365 AB - There are many changes for estimating erosion by water in RUSLE, the revised universal soil loss equation. The changes include the following: Computerizing the algorithms to assist with the calculations. New rainfall-runoff erosivity term values (R) in the western United States, based on more than 1,200 gauge locations. Some revisions and additions for the eastern United States, including corrections for high R-factor areas with flat slopes to adjust for splash erosion associated with raindrops falling on ponded water. Development of a seasonally variable soil erodibility term (K). A subfactor approach for calculating the over-management term (C), with the subfactors representing considerations of prior land use, crop canopy, surface cover, and surface roughness. New slope length and steepness (LS) algorithms reflecting rill to interrill erosion ratios. The capacity to calculate LS products for slopes of varying shape. New conservation practice values (P) for rangelands, stripcrop rotations, contour factor values, and subsurface drainage. JF - Journal of Soil and Water Conservation AU - Renard, K G AU - Foster, G R AU - Weesies, G A AU - Porter, J P AD - ARS/USDA, Tucson, AZ 85719, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 30 EP - 33 VL - 46 IS - 1 SN - 0022-4561, 0022-4561 KW - RUSLE KW - erosion control KW - soils KW - ASFA 3: Aquatic Pollution & Environmental Quality; Health & Safety Science Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - erosion KW - mathematical models KW - Freshwater KW - conservation KW - runoff KW - soil conservation KW - soil erosion KW - aquatic environment KW - Q5 08523:Conservation, wildlife management and recreation KW - Q2 09264:Sediments and sedimentation KW - H SE6.28:LANDSLIDES AND EROSION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16380270?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Soil+and+Water+Conservation&rft.atitle=RUSLE.+Revised+universal+soil+loss+equation.&rft.au=Renard%2C+K+G%3BFoster%2C+G+R%3BWeesies%2C+G+A%3BPorter%2C+J+P&rft.aulast=Renard&rft.aufirst=K&rft.date=1991-01-01&rft.volume=46&rft.issue=1&rft.spage=30&rft.isbn=&rft.btitle=&rft.title=Journal+of+Soil+and+Water+Conservation&rft.issn=00224561&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - soils; conservation; erosion; erosion control; runoff; soil conservation; mathematical models; soil erosion; aquatic environment; Freshwater ER - TY - JOUR T1 - Baseflow and stormflow transport of nutrients from mixed agricultural watersheds. AN - 16367998; 2856507 AB - The purposes of this study were to compare relative water and nutrient transports via storm runoff with amounts removed in continuous baseflow and to evaluate the influence of different management practices on such transport. Baseflow and storm runoff from four watersheds near Coshocton, Ohio, USA with different land use practices were measured, sampled, and analyzed for these comparisons. In two watersheds, 123 and 32.1 ha in size, containing woodland, pasture, and row crops, the majority of N moved from the watersheds in the storm runoff; however, 25 to 50% of the N transport was via baseflow. Although stormflow was the larger transport pathway for nutrients leaving a watershed, a sizable portion of the nutrients can be carried with the baseflow. This comparison of watersheds in an unglaciated area indicates that there is a negligible difference in the quality of water leaving an unfertilized wooded area or unfertilized pasture or a watershed that receives fertilization on 55% of its area. JF - Journal of Environmental Quality AU - Owens, L B AU - Edwards, WM AU - Keuren, R W AD - USDA-ARS, North Appalachian Exp. Watershed, P.O. Box 478, Coshocton, OH 43812, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 407 EP - 414 VL - 20 IS - 2 SN - 0047-2425, 0047-2425 KW - nutrients KW - nutrients (mineral) KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - fertilizers KW - watersheds KW - Freshwater KW - USA, Ohio, Coshocton KW - agricultural runoff KW - groundwater pollution KW - stormwater runoff KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16367998?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Baseflow+and+stormflow+transport+of+nutrients+from+mixed+agricultural+watersheds.&rft.au=Owens%2C+L+B%3BEdwards%2C+WM%3BKeuren%2C+R+W&rft.aulast=Owens&rft.aufirst=L&rft.date=1991-01-01&rft.volume=20&rft.issue=2&rft.spage=407&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - fertilizers; groundwater pollution; agricultural runoff; watersheds; nutrients (mineral); stormwater runoff; nutrients; USA, Ohio, Coshocton; Freshwater ER - TY - JOUR T1 - Transport and prediction of sulfate in agricultural runoff. AN - 16364818; 2856493 AB - The measurement and simulation of sulfate-S (SO sub(4)-S) mobility in agricultural watersheds is necessary to evaluate the effect of management practices on associated crop S deficiencies, enhanced leaching loss of nutrient cations, and acidification of percolation waters. The concentrations and amounts of SO sub(4)-S in runoff from six grassed and 13 cropped watersheds in the Southern Plains were, thus, measured over a 4-yr period. Sulfate-S transport in runoff was predicted using an equation describing the kinetics of SO sub(4)-S desorption from soil and compared with measured values. No SO sub(4)-S was added to any of the watersheds directly as S fertilizer or indirectly in N or P fertilizer material. No difference (at 5% level) in SO sub(4)-S concentration in runoff from grassed (mean annual value of 12.6 mg/L) and cropped (mean annual value of 11.0 mg/L) watersheds was observed. Differences in amounts (0.2-18.9 kg/ha/yr) were a function of runoff volume as influenced by land management. Measured and predicted SO sub(4)-S concentrations in runoff for individual events were not significantly different (at 5% level), with an average predictive standard error of 1.6 mg/L for all watersheds, representing 17% of the measured concentration. The equation may, thus, provide a predictive tool in agronomic and environmental studies of SO sub(4)-S movement in agricultural watersheds. JF - Journal of Environmental Quality AU - Sharpley, AN AU - Smith, S J AU - Jones, O R AU - Berg, WA AU - Coleman, G A AD - USDA-ARS, Water Qual. and Watershed Res. Lab., P.O. Box 1430, Durant, OK 74702-1430, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 415 EP - 420 VL - 20 IS - 2 SN - 0047-2425, 0047-2425 KW - fate KW - percolation KW - sulphates KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - fertilizers KW - watersheds KW - Freshwater KW - agricultural runoff KW - pollutant persistence KW - acidification KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16364818?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Transport+and+prediction+of+sulfate+in+agricultural+runoff.&rft.au=Sharpley%2C+AN%3BSmith%2C+S+J%3BJones%2C+O+R%3BBerg%2C+WA%3BColeman%2C+G+A&rft.aulast=Sharpley&rft.aufirst=AN&rft.date=1991-01-01&rft.volume=20&rft.issue=2&rft.spage=415&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - sulphates; fertilizers; agricultural runoff; pollutant persistence; watersheds; acidification; percolation; fate; Freshwater ER - TY - JOUR T1 - WEPP, a new generation of erosion prediction technology. AN - 16355072; 2856479 AB - Erosion prediction is the most widely used and most effective tool for soil conservation planning and design in the United States. Because it is impossible to monitor the influence of every farm and ranch management practice in all ecosystems under all weather conditions, erosion predictions are used to rank alternative practices with regard to their likely impact on erosion. These erosion predictions are thus an essential part of soil conservation programs in the United States. The prediction soil erosion by water has played an important role in the use, management, and assessment of land, not only in the United States, but in most regions of the world. The major tool has been the universal soil loss equation (USLE) developed by Wischmeier and Smith. JF - Journal of Soil and Water Conservation AU - Laflen, J M AU - Lane, L J AU - Foster, G R AD - Natl. Soil Erosion Res. Lab., Agric. Res. Serv., USDA, Purdue Univ., West Lafayette, IN 47907, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 34 EP - 38 VL - 46 IS - 1 SN - 0022-4561, 0022-4561 KW - erosion control KW - prediction KW - soils KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Health & Safety Science Abstracts KW - erosion KW - soil conservation KW - mathematical models KW - soil erosion KW - P 5000:LAND POLLUTION KW - H SE6.28:LANDSLIDES AND EROSION KW - Q5 08522:Protective measures and control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16355072?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Soil+and+Water+Conservation&rft.atitle=WEPP%2C+a+new+generation+of+erosion+prediction+technology.&rft.au=Laflen%2C+J+M%3BLane%2C+L+J%3BFoster%2C+G+R&rft.aulast=Laflen&rft.aufirst=J&rft.date=1991-01-01&rft.volume=46&rft.issue=1&rft.spage=34&rft.isbn=&rft.btitle=&rft.title=Journal+of+Soil+and+Water+Conservation&rft.issn=00224561&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - soils; erosion; erosion control; soil conservation; prediction; mathematical models; soil erosion ER - TY - JOUR T1 - Effects if channel restabilization on habitat diversity, Twentymile Creek, Mississippi. AN - 16352603; 2853616 AB - Twentymile Creek, a sand-bed stream draining a 450 km super(2) catchment in northeast Mississippi, was channelized prior to 1910, in 1938, and in 1966. Straightening and enlargement in 1966 was followed by channel instability--rapid bed degradation (2-4 m) and cross-section enlargement by 1.4 to 2.7 times. Grade control structures (GCS) (weirs with stone-protected stilling basins) and various types of streambank protection were constructed along the channel in the early 1980s to restore stability. Bank-line woody vegetation cover increased 8 per cent between 1981 and 1985 along Twentymile Creek but was stable along Mubby-chiwapa. Reaches above and below GCS were deeper with slower current velocities than elsewhere. Mean Shannon diversity indices based on physical data were similar for both streams, but were 58% higher for stations immediately above and below GCS than for other stations. Since construction of the GCS and bank protection measures, longitudinal berms have formed within the enlarged Twentymile Creek channel, creating a low-flow channel. JF - Regulated Rivers: Research & Management AU - Shields, FD Jr AU - Hoover, J J AD - USDA, Agric. Res. Serv., Natl. Sedimentation Lab., P.O. Box 1157, Oxford, MS 38655-1157, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 163 EP - 181 VL - 6 IS - 3 SN - 0886-9375, 0886-9375 KW - USA, Mississippi, Twentymile Creek KW - ASFA 3: Aquatic Pollution & Environmental Quality KW - habitat KW - degradation KW - freshwater fish KW - environmental impact KW - channels KW - flood control KW - Freshwater KW - species diversity KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16352603?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Regulated+Rivers%3A+Research+%26+Management&rft.atitle=Effects+if+channel+restabilization+on+habitat+diversity%2C+Twentymile+Creek%2C+Mississippi.&rft.au=Shields%2C+FD+Jr%3BHoover%2C+J+J&rft.aulast=Shields&rft.aufirst=FD&rft.date=1991-01-01&rft.volume=6&rft.issue=3&rft.spage=163&rft.isbn=&rft.btitle=&rft.title=Regulated+Rivers%3A+Research+%26+Management&rft.issn=08869375&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - habitat; degradation; freshwater fish; environmental impact; channels; flood control; species diversity; Freshwater ER - TY - JOUR T1 - Lactating cows become partially refractory to frequent intramammary endotoxin infusions: Recovery of milk yield despite a persistently high somatic cell count. AN - 16338294; 2839802 AB - Midlactation cows were infused with 10 mu g endotoxin in the same two homolateral quarters after each of several consecutive milkings to study the effect of prolonged, endotoxin-induced mastitis on lactational performance. The initial infusion induced an acute response with systemic involvement. Inflammation developed in infused quarters, and milk production declined and milk composition was altered in all quarters. Subsequent infusions failed to induce systemic responses. Furthermore, milk yield and composition in uninfused quarters returned to pretreatment levels despite further infusions. In infused quarters, milk yield, protein percentage and serum albumin concentration showed partial recovery during the endotoxin infusion period. In contrast, decreased lactose concentration, and increased cell count, N-acetyl- beta -D-glucosaminidase and lactoferrin levels persisted throughout the infusion period. After infusions were stopped, all measurements returned to near pretreatment levels. These data demonstrate that systemic, but not local, responses become refractory to multiple intramammary endotoxin infusions, and that multiple infusions have continued but little progressive or permanent, inhibitory effects on lactational performance despite a persistent mammary leucocytosis. JF - Research in Veterinary Science AU - Shuster, DE AU - Harmon, R J AD - Natl. Anim. Dis. Cent., USDA-Agric. Res. Serv., P.O. Box 70, Ames, IA 50010, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 272 EP - 277 VL - 51 IS - 3 SN - 0034-5288, 0034-5288 KW - cattle KW - Microbiology Abstracts B: Bacteriology; Toxicology Abstracts KW - lactation KW - endotoxins KW - mastitis KW - milk production KW - X 24171:Microbial KW - J 02823:In vitro and in vivo effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16338294?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Research+in+Veterinary+Science&rft.atitle=Lactating+cows+become+partially+refractory+to+frequent+intramammary+endotoxin+infusions%3A+Recovery+of+milk+yield+despite+a+persistently+high+somatic+cell+count.&rft.au=Shuster%2C+DE%3BHarmon%2C+R+J&rft.aulast=Shuster&rft.aufirst=DE&rft.date=1991-01-01&rft.volume=51&rft.issue=3&rft.spage=272&rft.isbn=&rft.btitle=&rft.title=Research+in+Veterinary+Science&rft.issn=00345288&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - endotoxins; mastitis; lactation; milk production ER - TY - JOUR T1 - Progress in plant disease resistance research. AN - 16335915; 2843459 AB - The nature, application and dependability of plant disease resistance and the impact of the science of genetics is reviewed. Recent discoveries at population, cellular and molecular levels that have greatly expanded opportunities for conducting research on plant disease resistance are presented and breeding strategies for improved crop protection are summarized. Other issues discussed include progress made in understanding host-pathogen relationships; biological control, gene mapping and genetic engineering; low-input sustainable agriculture and integrated pest management; and the need for international scientific collaboration on crop improvement policies and methodologies. JF - FAO Plant Protection Bulletin AU - Mackenzie AD - USDA, Coop. State Res. Serv., Suite 330, Aerospace Build., 901 D St., SW, Washington, DC 20250-2200, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 147 EP - 154 VL - 39 IS - 4 SN - 0254-9727, 0254-9727 KW - Virology & AIDS Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - disease resistance KW - plant breeding KW - biological control KW - host-pathogen interactions KW - genetics KW - plant diseases KW - J 02880:Plant diseases KW - K 03089:Fungi: plant KW - V 22187:Control & treatment KW - A 01030:General KW - A 01024:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16335915?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=FAO+Plant+Protection+Bulletin&rft.atitle=Progress+in+plant+disease+resistance+research.&rft.au=Mackenzie&rft.aulast=Mackenzie&rft.aufirst=&rft.date=1991-01-01&rft.volume=39&rft.issue=4&rft.spage=147&rft.isbn=&rft.btitle=&rft.title=FAO+Plant+Protection+Bulletin&rft.issn=02549727&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - plant diseases; disease resistance; host-pathogen interactions; genetics; plant breeding; biological control ER - TY - JOUR T1 - Effect of growth stage on soybean response to chronic ozone exposure. AN - 16334806; 2840447 AB - Four cultivars of soybean (Glycine max (L.) Merr., cv. Forrest, Davis, Bragg, and Ransom) were exposed to chronic doses of O sub(3) in open-top field chambers to determine if a relationship exists between growth stage and yield response to O sub(3). Sixteen different quarterly sequences represented all possible combinations of the C and N treatments. The mean 31-d O sub(3) concentration (7 h/d mean) in the N treatment was almost identical at 96 to 98 nL/L (ppb) for each quarter. In the sequence with N during all four quarters (NNNN), plants were exposed from emergence to physiological maturity. Models to estimate O sub(3)-yield relationships were developed separately for each cultivar using seasonal and quarterly O sub(3) statistics. JF - Journal of Environmental Quality AU - Heagle, A S AU - Miller, JE AU - Rawlings, JO AU - Vozzo, S F AD - Dep. Plant Pathol., USDA-ARS, North Carolina State Univ., Raleigh, NC 27695, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 562 EP - 570 VL - 20 IS - 3 SN - 0047-2425, 0047-2425 KW - Pollution Abstracts KW - ozone KW - crops KW - seasonal variations KW - growth KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16334806?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Effect+of+growth+stage+on+soybean+response+to+chronic+ozone+exposure.&rft.au=Heagle%2C+A+S%3BMiller%2C+JE%3BRawlings%2C+JO%3BVozzo%2C+S+F&rft.aulast=Heagle&rft.aufirst=A&rft.date=1991-01-01&rft.volume=20&rft.issue=3&rft.spage=562&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - crops; growth; ozone; seasonal variations ER - TY - JOUR T1 - Application of ecological classification to environmental effects analysis. AN - 16329532; 2839668 AB - The primary objective of this article is to discuss how ecological classification may be used in assessing the effects of management practices upon a variety of resources (e.g., wildlife habitat, cattle forage, and watershed hydrologic function). A secondary objective is to outline the systematic process for ecosystem effects analysis the Northern Region of the US Forest Service is currently testing in their environmental assessment efforts. JF - Journal of Environmental Quality AU - Jensen, ME AU - McNicoll, CH AU - Prather, M AD - USDA-FS, Northern Reg., P.O. Box 7669, Federal Build., Missoula, MT 59807, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 24 EP - 30 VL - 20 IS - 1 SN - 0047-2425, 0047-2425 KW - Forest Service Northern Region KW - USDA Northern Region KW - classification systems KW - environmental management KW - inland water environment KW - plants KW - vegetation KW - ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts; Pollution Abstracts KW - environment management KW - ecosystems KW - Freshwater KW - ecology KW - resource management KW - hydrology KW - USA KW - land use KW - P 9000:ENVIRONMENTAL ACTION KW - Q5 08522:Protective measures and control KW - D 04712:Environmental degradation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16329532?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Application+of+ecological+classification+to+environmental+effects+analysis.&rft.au=Jensen%2C+ME%3BMcNicoll%2C+CH%3BPrather%2C+M&rft.aulast=Jensen&rft.aufirst=ME&rft.date=1991-01-01&rft.volume=20&rft.issue=1&rft.spage=24&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - hydrology; inland water environment; environment management; ecosystems; ecology; classification systems; resource management; land use; plants; vegetation; USA; Freshwater ER - TY - JOUR T1 - Response of net carbon exchange rate of soybean to ozone at different stages of growth and its relation to yield. AN - 16327358; 2840461 AB - Field experiments with soybean (Glycine max (Merr.) cv. Davis) were performed to determine the impact of O sub(3) exposure at different stages of plant development on net carbon exchange rate (NCER) and to establish the relationship between NCER and yield for different O sub(3) exposure periods. The growing season was divided into four quarters (Q1-Q4) of 31 d each for O sub(3) treatment. In each quarter, O sub(3) treatments in open-top chambers were either charcoal-filtered air (C) or nonfiltered air (N) to which O sub(3) was added to achieve approximately 100 nL L super(-1) O sub(3) (mean 7 h d super(-1) average for the quarter). Good linear relationships of yield and NCER were found when Q3 and Q4 or Q2, Q3, and Q4 data were combined. In all cases, however, Q4 data were essential to a good correlation between NCER and yield. JF - Journal of Environmental Quality AU - Miller, JE AU - Pursley, WA AU - Vozzo, S F AU - Heagle, A S AD - USDA-ARS, Air Qual. Program and Dep. Crop Sci., North Carolina State Univ., 1509 Varsity Dr., Raleigh, NC, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 571 EP - 575 VL - 20 IS - 3 SN - 0047-2425, 0047-2425 KW - Pollution Abstracts KW - photosynthesis KW - ozone KW - crops KW - pollution effects KW - growth KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16327358?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Response+of+net+carbon+exchange+rate+of+soybean+to+ozone+at+different+stages+of+growth+and+its+relation+to+yield.&rft.au=Miller%2C+JE%3BPursley%2C+WA%3BVozzo%2C+S+F%3BHeagle%2C+A+S&rft.aulast=Miller&rft.aufirst=JE&rft.date=1991-01-01&rft.volume=20&rft.issue=3&rft.spage=571&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - ozone; crops; photosynthesis; growth; pollution effects ER - TY - JOUR T1 - Hematologic and immunologic toxicity of deoxynivalenol (DON)-contaminated diets to growing chickens. AN - 16326384; 2842618 AB - Deoxynivalenol (3a,7a,15-trihydroxy-12,13-epoxytrichothec-9-en-one; (DON, vomitoxin)), is a mycotoxin which can be produced in various commodities by Fusarium species of fungi. Because DON induces changes in the hematopoietic system of chicks and alters immune response in mice and chicks, the objectives of the present study were: 1) to characterize the effects of DON-contaminated wheat diets on hematologic measurements, cell-mediated immune responses, and humoral immune responses of Leghorn chickens and 2) to measure the effects of diets formulated with purified DON on hematologic measurements and cell-mediated immune responses of broiler and Leghorn chicks. JF - Bulletin of Environmental Contamination and Toxicology AU - Harvey, R B AU - Kubena, L F AU - Huff, W E AU - Elissalde, M H AU - Phillips, T D AD - USDA, Agric. Res. Serv., Food Anim. Prot. Res. Lab., Route 5, Box 810, College Station, TX 77840, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 410 EP - 416 VL - 46 IS - 3 SN - 0007-4861, 0007-4861 KW - vomitoxin KW - haematology KW - chickens KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Toxicology Abstracts KW - Fusarium KW - immunology KW - toxicity KW - mycotoxins KW - K 03082:Mycotoxins KW - X 24171:Microbial UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16326384?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+Environmental+Contamination+and+Toxicology&rft.atitle=Hematologic+and+immunologic+toxicity+of+deoxynivalenol+%28DON%29-contaminated+diets+to+growing+chickens.&rft.au=Harvey%2C+R+B%3BKubena%2C+L+F%3BHuff%2C+W+E%3BElissalde%2C+M+H%3BPhillips%2C+T+D&rft.aulast=Harvey&rft.aufirst=R&rft.date=1991-01-01&rft.volume=46&rft.issue=3&rft.spage=410&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+Environmental+Contamination+and+Toxicology&rft.issn=00074861&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Fusarium; toxicity; immunology; mycotoxins ER - TY - JOUR T1 - Modeling the cumulative watershed effects of forest management strategies. AN - 16311412; 2824718 AB - There is increasing concern over the possibility of adverse cumulative watershed effects from intensive forest management. It is impractical to address many aspects of the problem experimentally because to do so would require studying large watersheds for 100 yr or more. One such aspect is the long-term effect of forest management strategies on erosion and sedimentation and the resultant damage to fish habitat. Is dispersing activities in time and space an effective way to minimize cumulative sedimentation effects? To address this problem, Monte Carlo simulations were conducted on four hypothetical 10,000-ha fifth-order forested watersheds. The parameters governing the simulations were based on recent data from coastal Oregon, USA and northwestern California. JF - Journal of Environmental Quality AU - Ziemer, R R AU - Lewis, J AU - Rice, R M AU - Lisle, TE AD - Pacific Southwest Res. Stn., USDA-FS, 1700 Bayview Dr., Arcata, CA 95521, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 36 EP - 42 VL - 20 IS - 1 SN - 0047-2425, 0047-2425 KW - ASFA 3: Aquatic Pollution & Environmental Quality KW - Marine KW - erosion KW - environmental impact KW - sedimentation KW - watersheds KW - Freshwater KW - simulation KW - Pisces KW - INE, USA, Oregon KW - habitat KW - forest industry KW - INE, USA, California KW - land use KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16311412?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Modeling+the+cumulative+watershed+effects+of+forest+management+strategies.&rft.au=Ziemer%2C+R+R%3BLewis%2C+J%3BRice%2C+R+M%3BLisle%2C+TE&rft.aulast=Ziemer&rft.aufirst=R&rft.date=1991-01-01&rft.volume=20&rft.issue=1&rft.spage=36&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - habitat; erosion; forest industry; environmental impact; sedimentation; watersheds; simulation; land use; Pisces; INE, USA, Oregon; INE, USA, California; Marine; Freshwater ER - TY - JOUR T1 - Dinitrogen fixation potential and yield of hypernodulating soybean mutants: A field evaluation. AN - 16297104; 2806601 JF - Crop Science AU - Wu, S AU - Harper, JE AD - USDA-ARS, Plant Biol. and Genet. Res., Univ. Illinois, 1201 W. Gregory, Urbana, IL 61801, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1233 EP - 1240 VL - 31 IS - 5 SN - 0011-183X, 0011-183X KW - hypernodulation mutants KW - nitrogen KW - Glycine max KW - Rhizobiaceae KW - fertilizers KW - inhibition KW - mutants KW - nitrogen fixation KW - nodulation KW - nutrient availability KW - yield KW - Genetics Abstracts; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - A 01051:Nitrogen cycle KW - J 02901:Soil and plants KW - G 07355:GENERAL) KW - W 30514:Soil organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16297104?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Dinitrogen+fixation+potential+and+yield+of+hypernodulating+soybean+mutants%3A+A+field+evaluation.&rft.au=Wu%2C+S%3BHarper%2C+JE&rft.aulast=Wu&rft.aufirst=S&rft.date=1991-01-01&rft.volume=31&rft.issue=5&rft.spage=1233&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Rhizobiaceae; Glycine max; nodulation; nitrogen fixation; inhibition; fertilizers; nutrient availability; yield; mutants ER - TY - JOUR T1 - Long-term ionic increases from a central Appalachian forested watershed. AN - 16296464; 2811509 AB - The electrical conductivity of stream water draining from an unmanaged and undisturbed control watershed has been increasing rather steadily, about 0.03 mS m super(-1) yr super(-1), since 1971. During this period, NO sub(3) super(-) and Ca super(2+) concentrations increased and were shown to mathematically account for the ionic contribution to conductivity; therefore, they are believed to be primarily responsible for the increase. However, the percentage of conductivity explained by the two ions was different over time. The percentage of conductivity attributable to NO sub(3) super(-) increased in a pattern very similar to concentration. In contrast, the percentage of conductivity attributable to Ca super(2+) decreased slightly over time. The Ca super(2+) is believed to be pairing with the NO sub(3) super(-) as the NO sub(3) super(-) ions leach through the soil. JF - Journal of Environmental Quality AU - Edwards, P J AU - Helvey, J D AD - USDA, For. Serv., Northeastern Forest Exp. Stn., Timber and Watershed Lab., P.O. Box 404, Nursery Bottom, Parsons, WV 26287, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 250 EP - 255 VL - 20 IS - 1 SN - 0047-2425, 0047-2425 KW - Appalachian Mountains KW - soils KW - Pollution Abstracts KW - calcium KW - forests KW - watersheds KW - ions KW - nitrogen oxides KW - streams KW - leaching KW - P 2000:FRESHWATER POLLUTION KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16296464?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Long-term+ionic+increases+from+a+central+Appalachian+forested+watershed.&rft.au=Edwards%2C+P+J%3BHelvey%2C+J+D&rft.aulast=Edwards&rft.aufirst=P&rft.date=1991-01-01&rft.volume=20&rft.issue=1&rft.spage=250&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - watersheds; forests; ions; streams; calcium; nitrogen oxides; leaching ER - TY - JOUR T1 - Swainsonine-induced high mountain disease in calves. AN - 16292696; 2809837 AB - Swainsonine, and indolizidine alkaloid in the locoweeds (certain species of the Astragalus and Oxytropis genera), was fed to young Holstein bull calves in their milk at high elevation (3090 m), and the incidence of high mountain disease (HMD) was compared with locoweed-fed and control calves. Five of 5 calves fed swainsonine and 5 of 5 calves fed fresh Oxytropis sericea showed outward signs of HMD, which included edema under the jaws, throat area and brisket and gross and microscopic lesions of HMD and locoweed poisoning. Grossly there were HMD lesions, including congestion of the liver, right ventricular hypertrophy, and dilatation and excessive fluid in the thoracic and abdominal cavities. Microscopically, the severe centrilobular lesions in the liver, edema of the pulmonary artery, severe edema and/or fibrosis of the roof of the right atrium were suggestive of HMD. JF - Veterinary and Human Toxicology AU - James, L F AU - Panter, KE AU - Broquist, H P AU - Hartley, W J AD - USDA/ARS Poisonous Plant Res. Lab., Logan, UT 84333, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 217 EP - 219 VL - 33 IS - 3 SN - 0145-6296, 0145-6296 KW - swainsonine KW - high mountain disease KW - cattle KW - Toxicology Abstracts KW - Oxytropis KW - Astragalus KW - X 24172:Plants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16292696?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Veterinary+and+Human+Toxicology&rft.atitle=Swainsonine-induced+high+mountain+disease+in+calves.&rft.au=James%2C+L+F%3BPanter%2C+KE%3BBroquist%2C+H+P%3BHartley%2C+W+J&rft.aulast=James&rft.aufirst=L&rft.date=1991-01-01&rft.volume=33&rft.issue=3&rft.spage=217&rft.isbn=&rft.btitle=&rft.title=Veterinary+and+Human+Toxicology&rft.issn=01456296&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Astragalus; Oxytropis ER - TY - JOUR T1 - Effects of spatial accumulation of runoff on watershed response. AN - 16287392; 2806520 AB - The drainage network accumulates upstream subwatershed runoff into a single downstream response, with runoff accumulating at network junctions. The effects of this accumulation on the magnitude and spatial variability of the downstream response are reviewed for simplified boundary conditions. Runoff parameters are runoff depth and corresponding unit area peak runoff rate. At the subwatershed level these parameters are referred to as d and q, respectively, and they vary from one subwatershed to another. At a downstream location, after accumulation by the drainage network, corresponding parameters are referred to as D and Q. Equations expressing the effects of runoff accumulation are formulated and discussed for uniform rainfall conditions. The review shows that the effects of runoff accumulation gain in importance as the number of upstream subwatersheds and the size of the watershed increase in the downstream direction. The review suggests that the role of spatial variability of upstream d and q in the determination of downstream D and Q diminishes as watershed size increases. However, nonuniform rainfall distributions and storm movement may overshadow the effects of runoff accumulation when watershed size increases beyond the size of the storm. JF - Journal of Environmental Quality AU - Garbrecht, J AD - USDA-ARS, Water Qual. and Watershed Res. Lab., P.O. Box 1430, Durant, OK 74702, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 31 EP - 35 VL - 20 IS - 1 SN - 0047-2425, 0047-2425 KW - models KW - Pollution Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - hydrology KW - statistical analysis KW - watersheds KW - mathematical models KW - Freshwater KW - runoff KW - storms KW - stormwater runoff KW - P 2000:FRESHWATER POLLUTION KW - Q2 09171:Dynamics of lakes and rivers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16287392?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Effects+of+spatial+accumulation+of+runoff+on+watershed+response.&rft.au=Garbrecht%2C+J&rft.aulast=Garbrecht&rft.aufirst=J&rft.date=1991-01-01&rft.volume=20&rft.issue=1&rft.spage=31&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - hydrology; models; runoff; statistical analysis; watersheds; mathematical models; storms; stormwater runoff; Freshwater ER - TY - JOUR T1 - Heritability of resistance to seed shattering in kleingrass. AN - 16284680; 2811791 AB - Seed shattering and nonuniformity of seed ripening in kleingrass, Panicum coloratum (L.), reduce the quantity of harvestable seed and contribute to diminished seed quality. In this study two populations were derived from an accession of kleingrass (PI 410177) that has superior seed retention. The objective was to determine the heritability of seed retention and the feasibility of developing improved germplasm from these populations. Variation for seed retention (SR) was demonstrated in these populations using a laboratory procedure for measuring SR. The heritability of SR was measured using parent-offspring regression. Narrow-sense heritabilities were similar and low in both populations (0.38 and 0.40), and genotype x environment interactions were a large component of the total variation. JF - Crop Science AU - Young, BA AD - USDA-ARS, Grassland, Soil and Water Res. Lab., Temple, TX 76502, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1156 EP - 1158 VL - 31 IS - 5 SN - 0011-183X, 0011-183X KW - seed shattering KW - Panicum coloratum KW - heritability KW - plant breeding KW - resistance KW - seeds KW - strains KW - Genetics Abstracts; Biotechnology and Bioengineering Abstracts KW - South Africa KW - W 30511:Plant breeding and aquaculture KW - G 07357:GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16284680?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Heritability+of+resistance+to+seed+shattering+in+kleingrass.&rft.au=Young%2C+BA&rft.aulast=Young&rft.aufirst=BA&rft.date=1991-01-01&rft.volume=31&rft.issue=5&rft.spage=1156&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Panicum coloratum; South Africa; resistance; strains; heritability; plant breeding; seeds ER - TY - JOUR T1 - Reduction of nitrate in aquifer microcosms by carbon additions. AN - 16284319; 2795423 AB - Aquifer microcosms were used to examine the effects of NO sub(3) super(-) and C amendments on groundwater from the Claiborne aquifer. Nitrate concentrations of 12.17 mg L super(-1) in aquifer microcosms were reduced 0.92%/d to 5.84 mg L super(-1) by the addition of 10 mg C L super(-1) for 35 d. Nitrate disappearance correlated with increases in number of denitrifiers and dissolved N sub(2)O concentration and decreases in dissolved oxygen, suggesting biological denitrification. Nitrate/chloride ratios decreased in microcosms with 10 mg C L super(-1) added and then increased when the C addition was removed. Carbon additions of 0.4 mg C L super(-1) had no effect on the microbial or chemical properties of the microcosms. JF - Journal of Environmental Quality AU - Obenhuber, D C AU - Lowrance, R AD - USDA-ARS, Southeast Watershed Res. Lab., Tifton, GA 31793, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 255 EP - 258 VL - 20 IS - 1 SN - 0047-2425, 0047-2425 KW - Pollution Abstracts KW - nitrates KW - aquifers KW - groundwater KW - carbon KW - contamination KW - microorganisms KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16284319?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Reduction+of+nitrate+in+aquifer+microcosms+by+carbon+additions.&rft.au=Obenhuber%2C+D+C%3BLowrance%2C+R&rft.aulast=Obenhuber&rft.aufirst=D&rft.date=1991-01-01&rft.volume=20&rft.issue=1&rft.spage=255&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - aquifers; groundwater; nitrates; contamination; carbon; microorganisms ER - TY - JOUR T1 - Nodulation interaction of the soybean allele Rj2 with Asiatic isolates of Bradyrhizobium japonicum . AN - 16282726; 2806610 AB - The dominant allele Rj2 in soybean, Glycine max (L.) Merr., restricts nodulation with Bradyrhizobium japonicum (Jordan) strains USDA 7, USDA 14, and USDA 122, while the recessive allele rj2 permits normal nodulation. To determine the frequency of nodulation restriction by the Rj2 allele of soybean, 89 bradyrhizobial isolates from Asia were tested in Leonard jar culture for nodulation response with near isogenic plant lines differing at the Rj2 locus. Fifty-one percent of the isolates tested elicited the nodulation restriction of the Rj2 allele. No geographic pattern in the occurrence of Rj2-restricted strains was discerned. Nearly half (47%) of the isolates restricted by the Rj2 allele were from Serogroup 6. Twenty-one of 25 Serogroup 6 strains were restricted by the Rj2 allele. Since some strains in Serogroup 6 were not restricted by the Rj2 allele and some strains not in Serogroup 6 were restricted, specific serological reaction per se is not essential or necessary for eliciting the action of the Rj2 allele. It appears that the Rj2 rejection is not as related to serotype as had been assumed. JF - Crop Science AU - Devine, TE AU - Kuykendall, L D AU - O'Neill, J J AD - Plant Sci. Inst., USDA-ARS, Beltsville Agric. Res. Cent.-West, Beltsville, MD 20705, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1129 EP - 1131 VL - 31 IS - 5 SN - 0011-183X, 0011-183X KW - Rj2 allele KW - Bradyrhizobium japonicum KW - Glycine max KW - alleles KW - nodulation KW - regulation KW - restriction KW - soil isolates KW - Genetics Abstracts; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - Asia KW - A 01051:Nitrogen cycle KW - J 02901:Soil and plants KW - W 30511:Plant breeding and aquaculture KW - G 07355:GENERAL) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16282726?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Nodulation+interaction+of+the+soybean+allele+Rj2+with+Asiatic+isolates+of+Bradyrhizobium+japonicum+.&rft.au=Devine%2C+TE%3BKuykendall%2C+L+D%3BO%27Neill%2C+J+J&rft.aulast=Devine&rft.aufirst=TE&rft.date=1991-01-01&rft.volume=31&rft.issue=5&rft.spage=1129&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Bradyrhizobium japonicum; Glycine max; Asia; soil isolates; nodulation; regulation; restriction; alleles ER - TY - JOUR T1 - Selection for resistance to Aphanomyces euteiches in red clover. AN - 16280483; 2808495 AB - Red clover (Trifolium pratense L.) is known to be a moderate host for Aphanomyces euteiches Drechs. Recently, an isolate of A. euteiches (Ae-572) was observed to be highly virulent on red clover. This research was conducted to determine inheritance of, and select for resistance to A. euteiches in red clover using an inoculated seedling assay. Resistant and susceptible red clover plants were intercrossed to study the inheritance of resistance. Frequency distributions of resistant and susceptible F sub(1) plants indicated that resistance to A. euteiches) is inherited as a quantitative trait. Three cycles of selection for resistance to A. euteiches in red clover resulted in significant improvement in resistance from the original selected population (cycle 0 = 3.64 mean disease severity index (DSI); Cycle 3 - 2.43 mean DSI). Narrow-sense heritability estimates were high enough (h super(2) sub(n) = 51% for Cycle 3) to assure that a recurrent selection program utilizing family selection could be used to improve red clover populations for resistance to A. euteiches). JF - Crop Science AU - Tofte, JE AU - Smith, R R AU - Grau, C R AD - Dep. Agron., Univ. Wisconsin-Madison and USDA-ARS, Madison, WI 53706, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1141 EP - 1144 VL - 31 IS - 5 SN - 0011-183X, 0011-183X KW - Aphanomyces euteiches KW - Trifolium pratense KW - inheritance KW - resistance KW - Genetics Abstracts; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - K 03087:Fungi: human KW - W 30511:Plant breeding and aquaculture KW - A 01025:Leguminous crops KW - G 07355:GENERAL) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16280483?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Selection+for+resistance+to+Aphanomyces+euteiches+in+red+clover.&rft.au=Tofte%2C+JE%3BSmith%2C+R+R%3BGrau%2C+C+R&rft.aulast=Tofte&rft.aufirst=JE&rft.date=1991-01-01&rft.volume=31&rft.issue=5&rft.spage=1141&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aphanomyces euteiches; Trifolium pratense; resistance; inheritance ER - TY - JOUR T1 - Blood fraction effects on the antibotulinal efficacy of nitrite in model beef sausages. AN - 16279942; 2800512 AB - Toxin production by Clostridium botulinum was studied in a model cured beef sausage containing 0-5% added dried bovine blood fractions. Controls which contained nitrite but without blood fractions, were toxic by bioassay in 3 wk at 27 degree C. Controls without nitrite or blood fractions were toxic at 1 wk, while model sausages supplemented with hemoglobin, red cells, or whole blood were toxic in 1-3 wk. Plasma yielded no detectable toxin for 4 to > 10 wk depending upon addition level. Sausages showing delayed toxigenesis had pH values lower than those which developed toxin earlier. These results demonstrated that use of blood fractions that increased iron levels in beef above 30 mu g/g interfered with the antibotulinal efficacy of sodium nitrite. JF - Journal of Food Science AU - Miller, A J AU - Menichillo, DA AD - USDA-ARS Eastern Reg. Res. Cent., 600 E. Mermaid Ln., Philadelphia, PA 19118, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1158 EP - 1160 VL - 56 IS - 5 SN - 0022-1147, 0022-1147 KW - sodium nitrite KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - toxins KW - beef KW - blood KW - Clostridium botulinum KW - botulism KW - cured products KW - A 01017:Human foods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16279942?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Food+Science&rft.atitle=Blood+fraction+effects+on+the+antibotulinal+efficacy+of+nitrite+in+model+beef+sausages.&rft.au=Miller%2C+A+J%3BMenichillo%2C+DA&rft.aulast=Miller&rft.aufirst=A&rft.date=1991-01-01&rft.volume=56&rft.issue=5&rft.spage=1158&rft.isbn=&rft.btitle=&rft.title=Journal+of+Food+Science&rft.issn=00221147&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Clostridium botulinum; toxins; cured products; beef; blood; botulism ER - TY - JOUR T1 - Field decay of wheat straw and its effects on metribuzin and S-ethyl metribuzin sorption and elution from crop residues. AN - 16277074; 2795491 AB - Best agricultural management practices (BMP) are needed for minimizing the potential off-site transport of agricultural chemicals while retaining their chemical efficacy. Field and laboratory studies of herbicide-crop residue interactions in conservation tillage systems were conducted to determine weather-induced changes in wheat (Triticum aestivum L.) straw chemical composition, the capacity of plant residues to retain metribuzin and its S-ethyl analog, and the changes in herbicide sorption characteristics of these residues as they decay in the field. Although metribuzin and S-ethyl metribuzin are primarily soil-activated herbicides, they would still be effective for post-emergency control of Bromus spp. in winter wheat due to foliar absorption and slow release from the straw mulch. By the same token, the straw mulch is a temporary storage medium to alter these herbicides' environmental dispersion pattern and may be a significant mechanism of retardation of agricultural chemical movement to the subsurface of lands under conservation tillage. JF - Journal of Environmental Quality AU - Dao, TH AD - USDA-ARS, P.O. Box 1199, El Reno, OK 73036, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 203 EP - 208 VL - 20 IS - 1 SN - 0047-2425, 0047-2425 KW - metribuzin KW - soils KW - Pollution Abstracts; Health & Safety Science Abstracts KW - residues KW - sorption KW - chemicals KW - Triticum aestivum KW - herbicides KW - agriculture KW - crops KW - P 5000:LAND POLLUTION KW - H SE2.20:CROP CONTAMINATION KW - H SE5.22:HERBICIDES UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16277074?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Field+decay+of+wheat+straw+and+its+effects+on+metribuzin+and+S-ethyl+metribuzin+sorption+and+elution+from+crop+residues.&rft.au=Dao%2C+TH&rft.aulast=Dao&rft.aufirst=TH&rft.date=1991-01-01&rft.volume=20&rft.issue=1&rft.spage=203&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Triticum aestivum; agriculture; herbicides; crops; sorption; residues; chemicals ER - TY - JOUR T1 - The measurement of bioavailable phosphorus in agricultural runoff. AN - 16277011; 2795445 AB - The role of sediment-bound or particulate P in agricultural runoff in accelerating the biological productivity of surface water can be assessed if the biological availability of particulate P (PP) is known. Previous research has indicated amounts of P extracted from deposited river and lake sediments by 0.1 M NaOH to be correlated with P uptake by the alga Selenastrum capricornutum . This study investigates a modification of this extraction to allow routine quantification of potentially bioavailable particulate P (BPP) content of agricultural runoff from the Reddish Prairies and Rolling Red Plains land resource areas. In the proposed method, 20 mL of unfiltered runoff is shaken with 180 mL of 0.11 M NaOH for 17 h and BPP concentration calculated by subtraction of the soluble P (SP) concentration of the runoff sample. JF - Journal of Environmental Quality AU - Sharpley, AN AU - Troeger, W W AU - Smith, S J AD - USDA-ARS, Water Qual. and Watershed Res. Lab., P.O. Box 1430, Durant, OK 74702-1430, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 235 EP - 238 VL - 20 IS - 1 SN - 0047-2425, 0047-2425 KW - Pollution Abstracts KW - water quality KW - surface water KW - agriculture KW - watersheds KW - phosphorus KW - algae KW - runoff KW - Selenastrum capricornutum KW - P 5000:LAND POLLUTION KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16277011?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=The+measurement+of+bioavailable+phosphorus+in+agricultural+runoff.&rft.au=Sharpley%2C+AN%3BTroeger%2C+W+W%3BSmith%2C+S+J&rft.aulast=Sharpley&rft.aufirst=AN&rft.date=1991-01-01&rft.volume=20&rft.issue=1&rft.spage=235&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Selenastrum capricornutum; water quality; runoff; phosphorus; agriculture; surface water; algae; watersheds ER - TY - JOUR T1 - Storage and bacterial contamination effects on myofibrillar proteins and shear force of beef. AN - 16276459; 2800435 AB - Thirty-two steaks from the longissimus muscle, fifth rib to third lumbar vertebra, were obtained from youthful carcass beef. Half were sterilized by ultraviolet light and all vacuum packaged and stored for 1, 14, 28 or 57 days at 2 degree C. After storage, steaks were examined for microbial populations, myofibril fragmentation index (MFI), cooking characteristics and shear force (SF). Aerobic and anaerobic counts decreased during storage. Psychrotrophic counts were low throughout. Sterilization had no effect on SF or MFI. Cooking loss tended (P < 0.09) to increase with time of storage. SF values decreased and MFI values increased through day 14, but remained relatively constant after that. Results of SDS-PAGE, SF and MFI indicate major changes in proteolysis of myofibrils and tenderness were completely by day 14. JF - Journal of Food Science AU - Crouse, J D AU - Koohmaraie, M AU - Dickson, J S AD - USDA, ARS Roman L. Hruska, U.S. Meat Anim. Res. Cent., P.O. Box 166, Clay Center, NE 68933, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 903 EP - 905 VL - 56 IS - 4 SN - 0022-1147, 0022-1147 KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - food contamination KW - sterilization KW - myofibrils KW - cold storage KW - beef KW - bacteria KW - proteins KW - A 01017:Human foods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16276459?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Food+Science&rft.atitle=Storage+and+bacterial+contamination+effects+on+myofibrillar+proteins+and+shear+force+of+beef.&rft.au=Crouse%2C+J+D%3BKoohmaraie%2C+M%3BDickson%2C+J+S&rft.aulast=Crouse&rft.aufirst=J&rft.date=1991-01-01&rft.volume=56&rft.issue=4&rft.spage=903&rft.isbn=&rft.btitle=&rft.title=Journal+of+Food+Science&rft.issn=00221147&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - beef; sterilization; cold storage; food contamination; bacteria; proteins; myofibrils ER - TY - JOUR T1 - Zygomycetes in food fermentations. AN - 16275337; 2804041 AB - Zygomycetes are an important group of fungi used in industrial fermentation. Almost a hundred years ago they were known to produce soybean-based foods, amylases and ethanol. In more recent times they were discovered to bring about a variety of chemical transformations in the production of steroids and microbial rennin. At one time or another, all of these fermentations have been used commercially. However, this paper will deal only with the use of Zygomycetes in the preparation of food, including alcohol. In food fermentation, the principal genera involved are Rhizopus, Amylomyces, Actinomucor, Mucor, Chaetostylum and Thamnidium all Mucoraceae, except Chaetostylum and Thamnidium . In some instances, Zygomycetes may be used in combination with Aspergillus and Neurospora . JF - Mycologist AU - Hesseltine, C W AD - Northern Reg. Res. Cent., Agric. Res. Serv., USDA, Peoria, IL 61604, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 162 EP - 169 VL - 5 IS - 4 SN - 0269-915X, 0269-915X KW - Zygomycetes KW - fermentation KW - fermented food KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - K 03097:Food microbiology & fermentation KW - A 01017:Human foods KW - W 30412:Food (including SCP) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16275337?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mycologist&rft.atitle=Zygomycetes+in+food+fermentations.&rft.au=Hesseltine%2C+C+W&rft.aulast=Hesseltine&rft.aufirst=C&rft.date=1991-01-01&rft.volume=5&rft.issue=4&rft.spage=162&rft.isbn=&rft.btitle=&rft.title=Mycologist&rft.issn=0269915X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Zygomycetes; fermentation; fermented food ER - TY - JOUR T1 - Bird-repellent properties of secretions from nymphs of the azalea lace bug. AN - 16270527; 2791272 AB - Here, we present a series of behavioral investigations designed to assess the repellency of secretions produced by nymphs of the azalea lace bug (Stephanitis pyriodes ). In Experiment 1, adult and nymph lace bugs were presented to Red-winged Blackbirds (Agelaius phoeniceus ), adults (which lack chemical secretions) were relatively more palatable. In Experiment 2, we dipped nymphs in methylene chloride to remove secretion, and then presented dipped and undipped insects to birds. Consumption of the former nymphs was significantly higher than consumption of the latter, providing strong evidence that nymphs are avoided because of secretions. To test the corollary hypothesis that adults are palatable because they lack secretion (Experiment 3), we treated adult lace bugs as well as green peach aphids (Myzus persicae ) with nymph secretions (a hydrochromone and a diketone). Treated insects of both species were avoided while untreated insects were not. JF - Ecological Applications AU - Mason, J R AU - Neal, J AU - Oliver, JE AU - Lusby, W R AD - USDA, Anim. Plant Health Inspect. Serv., Sci. and Technol., c/o Monell Chem. Senses Cent., 3500 Market St., Philadelphia, PA 19104, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 226 EP - 230 VL - 1 IS - 2 SN - 1051-0761, 1051-0761 KW - Stephanitis pyriodes KW - Animal Behavior Abstracts; Entomology Abstracts; Ecology Abstracts KW - nymphs KW - Tingidae KW - Hemiptera KW - Aves KW - secretions KW - repellency KW - D 04671:Birds KW - D 04659:Insects KW - Z 05207:Agricultural & general applied entomology KW - D 04710:Control KW - Y 25763:Insects KW - Y 25886:Birds KW - Z 05175:Pheromones, repellents & attractants KW - Y 25883:Insects KW - Z 05179:Glands & secretions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16270527?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Applications&rft.atitle=Bird-repellent+properties+of+secretions+from+nymphs+of+the+azalea+lace+bug.&rft.au=Mason%2C+J+R%3BNeal%2C+J%3BOliver%2C+JE%3BLusby%2C+W+R&rft.aulast=Mason&rft.aufirst=J&rft.date=1991-01-01&rft.volume=1&rft.issue=2&rft.spage=226&rft.isbn=&rft.btitle=&rft.title=Ecological+Applications&rft.issn=10510761&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; Tingidae; Hemiptera; nymphs; secretions; repellency ER - TY - JOUR T1 - Water quality impacts associated with sorghum culture in the Southern Plains. AN - 16263196; 2795334 AB - Nonpoint-source pollution of surface water by the transport of sediment, N, and P in agricultural runoff is one of the nation's major water quality concerns. Consequently, concentrations and amounts of sediment, N, and P in runoff from Conventional Till (CT), Reduced Till (RT), and No Till (NT), sorghum (Sorghum bicolor (L.) Moench.) watersheds in the Southern Plains, were measured during a 5-yr period to evaluate water quality impacts of sorghum culture. JF - Journal of Environmental Quality AU - Sharpley, AN AU - Smith, S J AU - Williams, J R AU - Jones, O R AU - Coleman, G A AD - USDA-ARS, Water Qual. and Watershed Res. Lab., P.O. Box 1430, Durant, OK 74702-1430, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 239 EP - 244 VL - 20 IS - 1 SN - 0047-2425, 0047-2425 KW - sediment KW - Texas KW - Oklahoma KW - tillage KW - Pollution Abstracts KW - water quality KW - surface water KW - agriculture KW - Sorghum bicolor KW - chemistry KW - runoff KW - nonpoint pollution KW - P 5000:LAND POLLUTION KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16263196?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Water+quality+impacts+associated+with+sorghum+culture+in+the+Southern+Plains.&rft.au=Sharpley%2C+AN%3BSmith%2C+S+J%3BWilliams%2C+J+R%3BJones%2C+O+R%3BColeman%2C+G+A&rft.aulast=Sharpley&rft.aufirst=AN&rft.date=1991-01-01&rft.volume=20&rft.issue=1&rft.spage=239&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Sorghum bicolor; water quality; nonpoint pollution; agriculture; surface water; runoff; chemistry ER - TY - JOUR T1 - Chlorpyrifos exposures of workers entering sweet corn after chemigation. AN - 16255438; 2778294 AB - The purpose of this study was three-fold: (1) to estimate the degree of dermal and respiratory exposure of workers entering a corn field at selected stages of plant growth and after receiving multiple applications of chlorpyrifos by chemigation; (2) to correlate levels of dislodgable residues of chlorpyrifos on corn foliage with levels determined from dermal and respiratory exposure of workers upon re-entry into treated fields at maturing stages of growth; (3) To determine the distribution of chlorpyrifos in target areas and drift of chlorpyrifos into non-target areas. JF - Bulletin of Environmental Contamination and Toxicology AU - Brady, U E AU - Tippins, R AU - Perry, J AU - Young, J R AU - Wauchope, R D AD - Nematodes, Weeds and Crops Res. Unit, Agric. Res. Serv., USDA, Univ. Georgia Coastal Plain Exp. Stn., Tifton, GA 31793, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 343 EP - 350 VL - 46 IS - 3 SN - 0007-4861, 0007-4861 KW - chlorpyrifos KW - man KW - pesticides (organochlorine) KW - Health & Safety Science Abstracts; Pollution Abstracts; Toxicology Abstracts KW - respiratory system KW - skin KW - toxicity KW - occupational exposure KW - agriculture KW - X 24133:Metabolism KW - H SE5.7:HUMAN FACTORS KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16255438?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+Environmental+Contamination+and+Toxicology&rft.atitle=Chlorpyrifos+exposures+of+workers+entering+sweet+corn+after+chemigation.&rft.au=Brady%2C+U+E%3BTippins%2C+R%3BPerry%2C+J%3BYoung%2C+J+R%3BWauchope%2C+R+D&rft.aulast=Brady&rft.aufirst=U&rft.date=1991-01-01&rft.volume=46&rft.issue=3&rft.spage=343&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+Environmental+Contamination+and+Toxicology&rft.issn=00074861&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - occupational exposure; agriculture; respiratory system; skin; toxicity; man ER - TY - JOUR T1 - Effect of endocytic and metabolic inhibitors on the internalization and intracellular growth of Brucella abortus in Vero cells. AN - 16252026; 2784209 AB - Uptake, transfer to rough endoplasmic reticulum, and intracellular growth of Brucella abortus were studied in Vero cells treated with endocytic and metabolic inhibitors. Infection of Vero cells was suppressed when inhibitors of energy metabolism (iodoacetate, dinitrophenol), receptor-mediated endocytosis (monodansylcadaverine, amantadine, methylamine), or endosomal acidification (chloroquine, ammonium chloride, monensin) were added to the inoculum. Inhibition was not observed when these drugs were added after the inoculation period. Infection of Vero cells by B. abortus was inhibited by dibutyryl-cyclic adenosine monophosphate and Vibrio cholerae enterotoxin, but was stimulated by dibutyryl-cyclic guanosine monophosphate and Escherichia coli heat-stable enterotoxin a. Uptake of B. abortus by Vero cells was not prevented by colchicine, but was abolished by cytochalasin B. Uptake of heat-killed B. abortus and noninvasive E. coli was similar to that of viable brucellae. JF - American Journal of Veterinary Research AU - Detilleux, P G AU - Deyoe, B L AU - Cheville, N F AD - USDA, Agric. Res. Serv., Brucellosis Res. Unit, Natl. Anim. Dis. Cent., Ames, IA 50010, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1658 EP - 1664 VL - 52 IS - 10 SN - 0002-9645, 0002-9645 KW - effects on KW - Microbiology Abstracts B: Bacteriology KW - Vero cells KW - Brucella abortus KW - xenobiotics KW - growth KW - J 02802:Antibacterial Agents: General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16252026?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Journal+of+Veterinary+Research&rft.atitle=Effect+of+endocytic+and+metabolic+inhibitors+on+the+internalization+and+intracellular+growth+of+Brucella+abortus+in+Vero+cells.&rft.au=Detilleux%2C+P+G%3BDeyoe%2C+B+L%3BCheville%2C+N+F&rft.aulast=Detilleux&rft.aufirst=P&rft.date=1991-01-01&rft.volume=52&rft.issue=10&rft.spage=1658&rft.isbn=&rft.btitle=&rft.title=American+Journal+of+Veterinary+Research&rft.issn=00029645&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Brucella abortus; growth; xenobiotics; Vero cells ER - TY - JOUR T1 - Isolation of alpha -amylases and other starch degrading enzymes from endosperm of germinating maize. AN - 16246372; 2769437 AB - An improved purification procedure preserved high levels of alpha -amylase activity, and revealed and separated other starch-degrading activities from endosperm of germinating maize (Zea mays L.). This procedure is a significant improvement over the use of protein precipitation and affinity chromatography which results in large, and possibly selective, losses of amylase activity. JF - Plant Science AU - Warner, DA AU - Knutson, CA AD - USDA/NCAUR, 1815 N. University St., Peoria, IL 61604, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 143 EP - 150 VL - 78 IS - 2 SN - 0168-9452, 0168-9452 KW - Zea mays KW - alpha -amylase KW - endosperm KW - isolation KW - purification KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16246372?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Plant+Science&rft.atitle=Isolation+of+alpha+-amylases+and+other+starch+degrading+enzymes+from+endosperm+of+germinating+maize.&rft.au=Warner%2C+DA%3BKnutson%2C+CA&rft.aulast=Warner&rft.aufirst=DA&rft.date=1991-01-01&rft.volume=78&rft.issue=2&rft.spage=143&rft.isbn=&rft.btitle=&rft.title=Plant+Science&rft.issn=01689452&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - A new formulation system for the application of biocontrol fungi to soil. AN - 16243139; 2777698 AB - A new biocontrol formulation system was devised that does not require sterile conditions during preparation. It involves mixing vermiculite and powdered wheat bran with wet or dry fermentor biomass of Trichoderma spp. or Gliocladium virens , moistening with 0 multiplied by 05 N HCl, and drying the mixture. Before application to soil, the preparation (VBA-FB) is activated by re-moistening with 0 multiplied by 05 N HCl and incubated at room temperature for 2-3 days to stimulate development of young hyphae of the biocontrol fungus. Populations of biocontrol fungi proliferated to greater than 10 super(7) colony-forming units (cfu) per g of soil when activated VBA-FB was added to soil. In soil artificially infested with Rhizoctonia solani), seven isolates of the 14 studied added as VBA-FB reduced survival and 12 reduced saprophytic growth of the pathogens. Of these, two isolates of T. hamatum (TRI-4, Tm-23) and one of T. harzianum (Th-87) were the most effective. JF - Biocontrol Science and Technology AU - Lewis, JA AU - Papavizas, G C AU - Lumsden, R D AD - Biocontrol. Plant Dis. Lab., Agric. Res. Serv., USDA, Beltsville, MD 20705-2350, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 59 EP - 69 VL - 1 IS - 1 SN - 0958-3157, 0958-3157 KW - formulation system KW - biocontrol KW - application KW - Gliocladium KW - Rhizoctonia solani KW - Trichoderma KW - biological control KW - fungi KW - soil KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - K 03095:Soil KW - A 01014:Others KW - K 03069:Fungi KW - W 30513:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16243139?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biocontrol+Science+and+Technology&rft.atitle=A+new+formulation+system+for+the+application+of+biocontrol+fungi+to+soil.&rft.au=Lewis%2C+JA%3BPapavizas%2C+G+C%3BLumsden%2C+R+D&rft.aulast=Lewis&rft.aufirst=JA&rft.date=1991-01-01&rft.volume=1&rft.issue=1&rft.spage=59&rft.isbn=&rft.btitle=&rft.title=Biocontrol+Science+and+Technology&rft.issn=09583157&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Trichoderma; Gliocladium; Rhizoctonia solani; fungi; soil; biological control ER - TY - JOUR T1 - Induction of cytoplasmic leakage from Rhizoctonia solani hyphae by Gliocladium virens and partial characterization of a leakage factor. AN - 16241936; 2778825 AB - The biocontrol fungus Gliocladium virens (Gl-21)was grown on various solid and liquid substrates. Aqueous extracts of wheat bran and peanut hull meal (PHM) as well as spent glucose tartrate broth (GTB), Czapek-Dox broth (CDB) and potato dextrose broth (PDB) upon which Gl-21 was grown caused leakage of carbohydrates and electrolytes from hyphae of the soilborne plant pathogen Rhizoctonia solani . In addition, the mycelial weight of R. solani was reduced. Most of the leakage factor was formed in the substrates within six days of incubation. Acidification of the bran and the PHM media before inoculation stimulated production of the leakage factor by G. virens . Size-fractionation experiments indicated that a combination of factors produced by G. virens induced leakage from R. solani . Although the 1 kDa fraction from bran culture did not induce leakage activity. When the 1 kDa fractions were recombined, leakage activity was restored to a level similar to that of the non-fractionated preparation. Gliotoxin was detected in culture filtrates from G. virens grown on bran and PHM media. JF - Biocontrol Science and Technology AU - Lewis, JA AU - Roberts, D P AU - Hollenbeck, MD AD - Biocontrol Plant Dis. Lab., Agric. Res. Serv., USDA, Beltsville, MD 20705-2350, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 21 EP - 29 VL - 1 IS - 1 SN - 0958-3157, 0958-3157 KW - cytoplasmic leakage KW - gliotoxin KW - Gliocladium virens KW - Rhizoctonia solani KW - biological control KW - factors KW - induction KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - A 01014:Others KW - K 03040:Fungi KW - W 30513:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16241936?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biocontrol+Science+and+Technology&rft.atitle=Induction+of+cytoplasmic+leakage+from+Rhizoctonia+solani+hyphae+by+Gliocladium+virens+and+partial+characterization+of+a+leakage+factor.&rft.au=Lewis%2C+JA%3BRoberts%2C+D+P%3BHollenbeck%2C+MD&rft.aulast=Lewis&rft.aufirst=JA&rft.date=1991-01-01&rft.volume=1&rft.issue=1&rft.spage=21&rft.isbn=&rft.btitle=&rft.title=Biocontrol+Science+and+Technology&rft.issn=09583157&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Rhizoctonia solani; Gliocladium virens; induction; factors; biological control ER - TY - JOUR T1 - Growth temperature and action of lysozyme on Listeria monocytogenes . AN - 16240739; 2777630 AB - Listeria monocytogenes Scott A grown at 37 degree C were 1.8-2.5 fold more resistant to lytic action of lysozyme than cells grown at 19, 12, or 5 multiplied by 'C. Results suggest that lysozyme may be an effective preservative for controlling L. monocytogenes in refrigerated foods. JF - Journal of Food Science AU - Smith, J L AU - McColgan, C AU - Marmer, B S AD - USDA-ARS Eastern Reg. Res. Cent., 600 East Mermaid Lane, Philadelphia, PA 19118, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1101 VL - 56 IS - 4 SN - 0022-1147, 0022-1147 KW - lysozyme KW - temperature KW - effects on KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - Listeria monocytogenes KW - listeriosis KW - preservatives KW - food KW - resistance KW - A 01017:Human foods KW - A 01064:Microbial resistance KW - J 02728:Enzymes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16240739?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Food+Science&rft.atitle=Growth+temperature+and+action+of+lysozyme+on+Listeria+monocytogenes+.&rft.au=Smith%2C+J+L%3BMcColgan%2C+C%3BMarmer%2C+B+S&rft.aulast=Smith&rft.aufirst=J&rft.date=1991-01-01&rft.volume=56&rft.issue=4&rft.spage=1101&rft.isbn=&rft.btitle=&rft.title=Journal+of+Food+Science&rft.issn=00221147&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Listeria monocytogenes; resistance; listeriosis; preservatives; food ER - TY - JOUR T1 - Carbon and nitrogen dynamics in forest floor during short-term laboratory incubations. AN - 16234972; 2757288 AB - The supply of N to forest trees depends on seasonal patterns of N turnover. This study was conducted to examine factors that control organic matter decomposition and the relationship between organic matter decomposition and the release of mineral N. Samples of forest floor (organic soil horizons) from plantations of red pine (Pinus resinosa Ait.,), Norway spruce (Picea abies (L.) Karst.), sugar maple (Acer saccharum Marsh) and black locust (Robinia pseudoacacia L.) were collected periodically from May 1987 to December 1988. Samples were incubated in the laboratory for 20 days at 23 degree C. Carbon dioxide evolution was measured every 5 days and used to estimate potentially mineralizable carbon, C sub(0), and decay rate constants, k. Ammonium-N and NO super(-) sub(3)-N were measured at the beginning and end of incubation for eight sample periods to assess the effects of litter species and season (time of sampling) on N turnover. Forest floor from under the maple stand generally had the largest amount of evolved CO sub(2), and forest floor from under all stands had relatively large evolution of CO sub(2) from July to October 1988, following an unexpected, drought-induced litterfall. JF - Soil Biology and Biochemistry AU - Harris, M M AU - Riha, S J AD - USDA Forest Serv., P.O. Box 640, Durham, NH 03824, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1035 EP - 1042 VL - 23 IS - 11 SN - 0038-0717, 0038-0717 KW - Ecology Abstracts KW - nutrient dynamics KW - nitrogen cycle KW - forest floor KW - carbon cycle KW - soil KW - D 04600:Soil UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16234972?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Biology+and+Biochemistry&rft.atitle=Carbon+and+nitrogen+dynamics+in+forest+floor+during+short-term+laboratory+incubations.&rft.au=Harris%2C+M+M%3BRiha%2C+S+J&rft.aulast=Harris&rft.aufirst=M&rft.date=1991-01-01&rft.volume=23&rft.issue=11&rft.spage=1035&rft.isbn=&rft.btitle=&rft.title=Soil+Biology+and+Biochemistry&rft.issn=00380717&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - nutrient dynamics; carbon cycle; nitrogen cycle; soil; forest floor ER - TY - JOUR T1 - The Glycine-Glomus-Bradyrhizobium symbiosis. XI. Nodule gas exchange and efficiency as a function of soil and root water status in mycorrhizal soybean. AN - 16234513; 2760751 AB - Soybean (Glycine max (L.) Merr. cv. Hobbit) plants were inoculated with a HUP strain of Bradyrhizobium japonicum (Nitragin 61 A118) and either colonized by the vesicular-arbuscular mycorrhizal (VAM) fungus Glomus mosseae or fertilized with KH sub(2)PO sub(4) (non VAM). They were grown for 50 days in a growth chamber and harvested over a 4-day drought period during which available soil water decreased to 0. Nodule P concentrations and P-use efficiency declined linearly with soil and root water content during the harvest period in both VAM and non VAM plants. Nitrogenase activity, estimated from H sub(2) evolution and C sub(2)H sub(2) reduction data, was also a linear function of declining nodule P concentrations and CO sub(2)-exchange rates and showed similar patterns in both treatments. Hydrogen evolution and the relative efficiency of N sub(2) fixation, on the other hand, reacted differently to increasing drought in VAM and non VAM plants. JF - Physiologia Plantarum AU - Franson, R L AU - Brown AU - Bethlenfalvay, G J AD - USDA, ARS, Western Reg. Cent., 800 Buchanan St., Albany, CA 94710, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 476 EP - 482 VL - 83 IS - 3 SN - 0031-9317, 0031-9317 KW - nitrogenase KW - carbon dioxide KW - phosphorus KW - Microbiology Abstracts B: Bacteriology; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - nodules KW - Glomus mosseae KW - nitrogen fixation KW - Glycine max KW - water stress KW - activity KW - nutrient utilization KW - vesicular-arbuscular mycorrhizas KW - interspecific relationships KW - Bradyrhizobium japonicum KW - acetylene reduction KW - gas exchange KW - A 01051:Nitrogen cycle KW - J 02901:Soil and plants KW - K 03096:Mycorrhiza UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16234513?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physiologia+Plantarum&rft.atitle=The+Glycine-Glomus-Bradyrhizobium+symbiosis.+XI.+Nodule+gas+exchange+and+efficiency+as+a+function+of+soil+and+root+water+status+in+mycorrhizal+soybean.&rft.au=Franson%2C+R+L%3BBrown%3BBethlenfalvay%2C+G+J&rft.aulast=Franson&rft.aufirst=R&rft.date=1991-01-01&rft.volume=83&rft.issue=3&rft.spage=476&rft.isbn=&rft.btitle=&rft.title=Physiologia+Plantarum&rft.issn=00319317&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Glomus mosseae; Bradyrhizobium japonicum; Glycine max; vesicular-arbuscular mycorrhizas; nodules; interspecific relationships; nitrogen fixation; activity; gas exchange; nutrient utilization; acetylene reduction; water stress ER - TY - JOUR T1 - Bacillus brevis Migula 1900 taxonomy: Reassociation and base composition of DNA. AN - 16219372; 2745001 AB - Of 87 strains previously identified as Bacillus brevis Migula 1900, 58 had G + C contents of 47.0 to 51.9 mol%, a range that included the G + C content (48.7 mol%) of the type strain. The G + C contents for three other groups consisting of 5, 7, and 17 strains were 37.0 to 41.9, 42.0 to 46.9, and 52.0 mol% or higher, respectively. DNA reassociation studies showed that 25 of the 58 strains with G + C contents of 47.0 to 51.9 mol% were closely related genetically to the type strain and to each other. For the most part, this genetically related group was phenotypically homogeneous; variations in the fermentation of mannitol and mannose were observed. My results strongly suggest that many of the strains were misclassified as B. brevis . Consequently, much of the phenotypic heterogeneity of the species B. brevis Migula 1900 is not due to variations exhibited by genetically related organisms, but is the result of variability introduced by the presence of genetically unrelated strains. JF - International Journal of Systematic Bacteriology AU - Nakamura, L K AD - Microb. Properties Res., Natl. Cent. Agric. Util. Res., Agric. Res. Serv., USDA, Peoria, IL 61604, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 510 EP - 515 VL - 41 IS - 4 SN - 0020-7713, 0020-7713 KW - Biochemistry Abstracts 2: Nucleic Acids; Microbiology Abstracts B: Bacteriology KW - base composition KW - DNA KW - Bacillus brevis KW - taxonomy KW - N 14640:Structure & sequence KW - J 02725:DNA KW - J 02710:Identification, taxonomy and typing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16219372?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Systematic+Bacteriology&rft.atitle=Bacillus+brevis+Migula+1900+taxonomy%3A+Reassociation+and+base+composition+of+DNA.&rft.au=Nakamura%2C+L+K&rft.aulast=Nakamura&rft.aufirst=L&rft.date=1991-01-01&rft.volume=41&rft.issue=4&rft.spage=510&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Systematic+Bacteriology&rft.issn=00207713&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Bacillus brevis; taxonomy; DNA; base composition ER - TY - JOUR T1 - The gene encoding dinitrogenase reductase 2 is required for expression of the second alternative nitrogenase from Azotobacter vinelandii . AN - 16219261; 2753012 AB - Under diazotrophic conditions in the absence of molybdenum (Mo) and vanadium (V), Azotobacter vinelandii reduces N sub(2) to NH sub(4) super(+) by using nitrogenase 3 (encoded by anfHDGK). However, dinitrogenase reductase 2 (encoded by vnfH) is also expressed under these conditions even though this protein is a component of the V-containing alternative nitrogenase. Strains that lack both dinitrogenase reductases 1 and 2 (NifH super(-) VnfH super(-)) are unable to grow diazotrophically in Mo- and V-deficient medium. In this medium, NifH super(-) VnfH super(-) strains containing an anfH-lacZ transcriptional fusion exhibited less than 3% of the beta -galactosidase activity observed in the wild type with the same fusion. beta -Galactosidase activity expressed by VnfH super(-) mutants containing the anfH-lacZ fusion ranged between 57 and 78% of that expressed by the wild type containing the same fusion. Thus, expression of dinitrogenase reductase 2 seems to be required for transcription of the anfHDGK operon, although, in VnfH super(-) mutants, dinitrogenase reductase 1 appears to serve this function. JF - Journal of Bacteriology AU - Joerger, R D AU - Wolfinger, ED AU - Bishop, P E AD - Agric. Res. Serv., USDA, Raleigh, NC 27695-7615, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 4440 EP - 4446 VL - 173 IS - 14 SN - 0021-9193, 0021-9193 KW - nitrogenase 3 KW - dinitrogenase reductase 2 KW - anfHDGK operon KW - Genetics Abstracts; Microbiology Abstracts B: Bacteriology KW - operons KW - role KW - gene expression KW - Azotobacter vinelandii KW - G 07320:Bacterial genetics KW - J 02740:Genetics and evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16219261?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Bacteriology&rft.atitle=The+gene+encoding+dinitrogenase+reductase+2+is+required+for+expression+of+the+second+alternative+nitrogenase+from+Azotobacter+vinelandii+.&rft.au=Joerger%2C+R+D%3BWolfinger%2C+ED%3BBishop%2C+P+E&rft.aulast=Joerger&rft.aufirst=R&rft.date=1991-01-01&rft.volume=173&rft.issue=14&rft.spage=4440&rft.isbn=&rft.btitle=&rft.title=Journal+of+Bacteriology&rft.issn=00219193&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Azotobacter vinelandii; gene expression; operons; role ER - TY - JOUR T1 - Early responses during plant-bacteria interactions in tobacco cell suspensions. AN - 16215153; 2752214 AB - Bacteria that induce a hypersensitive response in tobacco leaves initiate a net uptake of extracellular H super(+) and a net increase in extracellular K super(+) in tobacco suspension cells. Other studies have shown that these interactions also result in a transient increase in lipid peroxidation and O sub(2) super(-) production. The relationships between these early plant responses were studied simultaneously using suspension-cultured tobacco cells and compatible, incompatible, and saprophytic bacteria. The bathing medium was monitored during a 6-h period for pH, conductivity, (K super(+)), and luminol-dependent chemiluminescence. In all bacterial treatments, an immediate increase in chemiluminescence and pH occurred within 30 min after addition of the bacteria. After about 2 h a second increase in pH, conductivity, (K super(+)), and chemiluminescence occurred with incompatible bacteria. The first response appears nonspecific, while the second response appears to depend on the host/pathogen incompatibility. JF - Phytopathology AU - Baker, C J AU - O'Neill, N R AU - Keppler, L D AU - Orlandi, E W AD - Microbiol. and Plant Pathol. Lab., USDA, ARS, Beltsville, MD 20705, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1504 EP - 1507 VL - 81 IS - 12 SN - 0331-949X, 0331-949X KW - effects on KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - cell culture KW - chemiluminescence KW - Pseudomonas KW - Nicotiana tabacum KW - pH KW - A 01028:Others KW - J 02880:Plant diseases UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16215153?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Phytopathology&rft.atitle=Early+responses+during+plant-bacteria+interactions+in+tobacco+cell+suspensions.&rft.au=Baker%2C+C+J%3BO%27Neill%2C+N+R%3BKeppler%2C+L+D%3BOrlandi%2C+E+W&rft.aulast=Baker&rft.aufirst=C&rft.date=1991-01-01&rft.volume=81&rft.issue=12&rft.spage=1504&rft.isbn=&rft.btitle=&rft.title=Phytopathology&rft.issn=0331949X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pseudomonas; Nicotiana tabacum; cell culture; pH; chemiluminescence ER - TY - JOUR T1 - Cloning, expression and characterization of a cDNA encoding a lipase from Rhizopus delemar . AN - 16212055; 2735099 AB - A lambda gt11 cDNA library was constructed in Escherichia coli using poly(A)-selected mRNA from the fungus, Rhizopus (Rp.) delemar . Lipase-producing members of the library were identified by means of a phenotypic score wherein the release of fatty acids by lipase causes a characteristic color change in the growth medium. One such isolate contained a 1287-bp insert (LIP cDNA) which hybridizes to 1.25- to 1.35-kb mRNA species from Rp. delemar . The lipase produced in E. coli containing the LIP cDNA exhibits the same substrate selectivity as the authentic fungal enzyme, hydrolyzing ester bonds at the stereospecific numbering (sn) sn-1 and sn-3, but not the sn-2, positions of triglycerides. The complete nucleotide sequence of the LIP cDNA was determined. By reference to the N-terminal sequence of authentic Rp. delemar lipase, the lipase-encoding region was identified within this fragment. The LIP cDNA encodes a putative preprolipase consisting of a 26-amino-acid(aa) signal sequence, a 97-aa propeptide, and a 269-aa mature enzyme. JF - Gene AU - Haas, MJ AU - Allen, J AU - Berka, T R AD - USDA-ARS-ERRC, 600 E. Mermaid Ln., Philadelphia, PA 19118, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 107 EP - 113 VL - 109 IS - 1 SN - 0378-1119, 0378-1119 KW - Escherichia coli KW - Rhizopus delemar KW - amino acid sequence KW - cDNA KW - characterization KW - cloning KW - gene expression KW - predictions KW - triacylglycerol lipase KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Genetics Abstracts; Biochemistry Abstracts 2: Nucleic Acids; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - G 07330:Fungal genetics KW - K 03079:Fungi KW - K 03020:Fungi KW - N 14684:Expression of cloned genes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16212055?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Gene&rft.atitle=Cloning%2C+expression+and+characterization+of+a+cDNA+encoding+a+lipase+from+Rhizopus+delemar+.&rft.au=Haas%2C+MJ%3BAllen%2C+J%3BBerka%2C+T+R&rft.aulast=Haas&rft.aufirst=MJ&rft.date=1991-01-01&rft.volume=109&rft.issue=1&rft.spage=107&rft.isbn=&rft.btitle=&rft.title=Gene&rft.issn=03781119&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - cloning; cDNA; amino acid sequence; characterization; gene expression ER - TY - JOUR T1 - Comparative study of colonizing and noncolonizing Campylobacter jejuni . AN - 16207785; 2732123 AB - Campylobacter jejuni A74/O and A74/C are congenic strains. An oral dose of 10 super(5) organisms of strain A74/C colonizes chicken intestines. Strain A74/O, from which A74/C is derived, does not colonize the chicken intestines with an oral dose of 10 super(5) organisms. In this study, the congenic bacteria were compared to identify possible colonization mechanisms. Differences were not observed in plasmid content or by HindIII, Pst I, Acc I, HincII, Ava I, Ava II, Xba I, and BamHI restriction enzyme digestion of total DNA. The strains did not differ in chemotactic behavior to mucin or fucose. JF - American Journal of Veterinary Research AU - Meinersmann, R J AU - Rigsby, W E AU - Stern, N J AU - Kelley, L C AU - Hill, JE AU - Doyle, M P AD - USDA, Agric. Res. Serv., Russell Res. Cent., Athens, GA 30613, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1518 EP - 1522 VL - 52 IS - 9 SN - 0002-9645, 0002-9645 KW - chickens KW - Microbiology Abstracts B: Bacteriology KW - restriction endonuclease mapping KW - cecum KW - Campylobacter jejuni KW - DNA KW - plasmids KW - colonization KW - J 02861:Microflora UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16207785?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Journal+of+Veterinary+Research&rft.atitle=Comparative+study+of+colonizing+and+noncolonizing+Campylobacter+jejuni+.&rft.au=Meinersmann%2C+R+J%3BRigsby%2C+W+E%3BStern%2C+N+J%3BKelley%2C+L+C%3BHill%2C+JE%3BDoyle%2C+M+P&rft.aulast=Meinersmann&rft.aufirst=R&rft.date=1991-01-01&rft.volume=52&rft.issue=9&rft.spage=1518&rft.isbn=&rft.btitle=&rft.title=American+Journal+of+Veterinary+Research&rft.issn=00029645&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Campylobacter jejuni; colonization; DNA; restriction endonuclease mapping; plasmids; cecum ER - TY - JOUR T1 - Phagocytosis and intracellular killing of Campylobacter jejuni by elicited chicken peritoneal macrophages. AN - 16197404; 2732350 AB - In vitro phagocytosis and intracellular survival of Campylobacter jejuni (strains B540 and Clin 1) in chicken peritoneal macrophages were studied. Macrophages were induced with Sephadex G-50 and harvested 48 hr later by peritoneal lavage. The extent of phagocytosis over time was determined by enumerating the intracellular C. jejuni after removal of extracellular C. jejuni with gentamicin. Pre-incubation of C. jejuni with antiserum generally enabled the macrophages to ingest greater numbers of cells than when the organism was pre-incubated in phosphate-buffered saline. C. jejuni were exposed to macrophage uptake for 30 minutes in a 5% CO sub(2) incubator at 42 C. Macrophages from C. jejuni)-colonized chickens and from uncolonized control chickens were able to almost destroy the organism within the experimental period. JF - Avian Diseases AU - Myszewski, MA AU - Stern, N J AD - Richard B. Russell Res. Cent., USDA, Agric. Res. Serv., P.O. Box 5677, Athens, GA 30613, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 750 EP - 755 VL - 35 IS - 4 SN - 0005-2086, 0005-2086 KW - chickens KW - Immunology Abstracts; Microbiology Abstracts B: Bacteriology KW - immune response (cell-mediated) KW - Campylobacter jejuni KW - infection KW - macrophages KW - phagocytosis KW - J 02833:Immune response and immune mechanisms KW - F 06764:Function UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16197404?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+Diseases&rft.atitle=Phagocytosis+and+intracellular+killing+of+Campylobacter+jejuni+by+elicited+chicken+peritoneal+macrophages.&rft.au=Myszewski%2C+MA%3BStern%2C+N+J&rft.aulast=Myszewski&rft.aufirst=MA&rft.date=1991-01-01&rft.volume=35&rft.issue=4&rft.spage=750&rft.isbn=&rft.btitle=&rft.title=Avian+Diseases&rft.issn=00052086&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Campylobacter jejuni; infection; phagocytosis; macrophages; immune response (cell-mediated) ER - TY - JOUR T1 - Inheritance of reaction to strawbreaker foot rot in two wheat populations. AN - 16193405; 2730439 AB - Strawbreaker foot rot (Pseudocercosporella herpotrichoides ), the most important soilborne disease of fall-sown wheat (Triticum aestivum L.) in northwestern USA, can best be controlled by host resistance. "Cerco" and VPM germplasm are important sources of resistance. This study was conducted to determine genetic control of their reaction to the fungus and devise breeding strategy to exploit their resistance. Intermediate to high heritability (h super(2)) values (0.57 to 0.84) were obtained for lesion indices assessed on culms of mature plants of F sub(2) derived F sub(3), F sub(4), and F sub(5) progenies of the crosses VPM/"Moisson" 421 (resistant)//Sel.101 (susceptible) and VPM/Moisson 951 (resistant)//Cerco (moderately resistant). The cross between the VPM derivative and the susceptible parent concurred with other studies indicating that a single dominant gene controlled the expression of strawbreaker lesion index. The lesion segregation patterns of the VPM/Moisson 951//Cerco cross revealed that the resistances of the two parents were genetically different. JF - Crop Science AU - Allan, R E AU - Roberts, DE AD - USDA-ARS, Wheat Genet., Qual., Physiol., and Dis. Res. Unit, Pullman, WA 99164-6420, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 943 EP - 947 VL - 31 IS - 4 SN - 0011-183X, 0011-183X KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - disease resistance KW - inheritance KW - footrot KW - Triticum aestivum KW - Pseudocercosporella herpotrichoides KW - infection KW - K 03089:Fungi: plant KW - A 01030:General KW - A 01026:Gramineous crops UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16193405?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Inheritance+of+reaction+to+strawbreaker+foot+rot+in+two+wheat+populations.&rft.au=Allan%2C+R+E%3BRoberts%2C+DE&rft.aulast=Allan&rft.aufirst=R&rft.date=1991-01-01&rft.volume=31&rft.issue=4&rft.spage=943&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pseudocercosporella herpotrichoides; Triticum aestivum; infection; disease resistance; inheritance; footrot ER - TY - JOUR T1 - Age-related response of male melon flies Dacus cucurbitae (Diptera: Tephritidae) to cue-lure. AN - 16193401; 2728104 AB - Laboratory-reared and wild adults of the melon fly, Dacus cucurbitae Coquillett, were tested for response to cue-lure at various ages. Virgin laboratory (4, 6, 8, 10, 12, and 14 days old) and wild (10, 12, 14, 16, 18, 20, and 22 days old) flies were released into outdoor field cages and trapped from 0800 until 1600 hr. Response of males to cue-lure increased with age and corresponded with sexual maturity for each strain. Females of both strains were relatively nonresponsive to cue-lure. Failure to eradicate in past male annihilation programs against D. cucurbitae may be explained in part by the fact that only older males, which may have already mated with gravid females, respond to cue-lure. JF - Journal of Chemical Ecology AU - Wong, TTY AU - McInnis, DO AU - Ramadan, M M AU - Nishimoto, JI AD - Trop. Fruit and Veg. Res. Lab., USDA/ARS, P.O. Box 2280, Honolulu, HI 96804, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 2481 EP - 2488 VL - 17 IS - 12 SN - 0098-0331, 0098-0331 KW - cue-lure KW - Chemoreception Abstracts; Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - Dacus cucurbitae KW - response KW - pheromone traps KW - age KW - attractants KW - males KW - Tephritidae KW - attractancy KW - bait KW - traps KW - Diptera KW - Z 05193:Orientation KW - D 04659:Insects KW - Y 25693:Insects KW - R 18053:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16193401?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Age-related+response+of+male+melon+flies+Dacus+cucurbitae+%28Diptera%3A+Tephritidae%29+to+cue-lure.&rft.au=Wong%2C+TTY%3BMcInnis%2C+DO%3BRamadan%2C+M+M%3BNishimoto%2C+JI&rft.aulast=Wong&rft.aufirst=TTY&rft.date=1991-01-01&rft.volume=17&rft.issue=12&rft.spage=2481&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Dacus cucurbitae; Tephritidae; Diptera; males; traps; bait; age; response; attractants; pheromone traps; attractancy ER - TY - JOUR T1 - Effectiveness of ammonia treatment in detoxification of fumonisin-contaminated corn. AN - 16190755; 2714756 AB - Corn throughout the world is frequently contaminated by the fungus Fusarium moniliforme , which produces toxic fumonisins. Ammonia has been shown to detoxify effectively aflatoxins in corn and cottonseed. Since corn can be contaminated by both fumonisins and aflatoxins, we investigated the effects of ammoniation of corn either cultured with or naturally contaminated by F. moniliforme . Fumonisin B sub(1) levels in the culture material and in naturally contaminated corn were reduced by 30 and about 45%, respectively, by the ammonia treatment. Despite the apparent reduction in fumonisin content, the toxicity of the culture material in rats was not altered by ammoniation. Reduced weight gains, elevated serum enzyme levels and histopathological lesions, typical of F. moniliforme) toxicity, occurred in rats fed either the ammoniated or non-ammoniated culture material. Atmospheric ammoniation of corn does not appear to be an effective method for the detoxification of F. moniliforme -contaminated corn. JF - Food and Chemical Toxicology AU - Norred, W P AU - Voss, KA AU - Bacon, C W AU - Riley, R T AD - Toxicol. and Mycotoxin Res. Unit, Richard B. Russell Agric. Res. Cent., USDA/ARS, P.O. Box 5677, Athens, GA 30613, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 815 EP - 819 VL - 29 IS - 12 SN - 0278-6915, 0278-6915 KW - Fusarium moniliforme KW - fumonisin KW - Health & Safety Science Abstracts; Pollution Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology; Toxicology Abstracts KW - Zea mays KW - mycotoxins KW - ammonia KW - detoxification KW - X 24120:Food, additives & contaminants KW - A 01022:Mycotoxins KW - K 03082:Mycotoxins KW - P 5000:LAND POLLUTION KW - H SE2.20:CROP CONTAMINATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16190755?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Food+and+Chemical+Toxicology&rft.atitle=Effectiveness+of+ammonia+treatment+in+detoxification+of+fumonisin-contaminated+corn.&rft.au=Norred%2C+W+P%3BVoss%2C+KA%3BBacon%2C+C+W%3BRiley%2C+R+T&rft.aulast=Norred&rft.aufirst=W&rft.date=1991-01-01&rft.volume=29&rft.issue=12&rft.spage=815&rft.isbn=&rft.btitle=&rft.title=Food+and+Chemical+Toxicology&rft.issn=02786915&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Zea mays; ammonia; detoxification; mycotoxins ER - TY - JOUR T1 - Diseases, pests, and normal microflora of honeybees, Apis mellifera , from feral colonies. AN - 16190144; 2727164 JF - Journal of Invertebrate Pathology AU - Gilliam, M AU - Taber, S III AD - USDA, Carl Hayden Bee Res. Cent., 2000 E. Allen Rd., Tucson, AZ 85719, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 286 EP - 289 VL - 58 IS - 2 SN - 0022-2011, 0022-2011 KW - Entomology Abstracts; Microbiology Abstracts B: Bacteriology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - reviews KW - Apis mellifera KW - microflora KW - diseases KW - pests KW - Hymenoptera KW - Apidae KW - J 02870:Invertebrate bacteriology KW - K 03091:Protozoa: animal KW - Z 05182:Pathology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16190144?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Invertebrate+Pathology&rft.atitle=Diseases%2C+pests%2C+and+normal+microflora+of+honeybees%2C+Apis+mellifera+%2C+from+feral+colonies.&rft.au=Gilliam%2C+M%3BTaber%2C+S+III&rft.aulast=Gilliam&rft.aufirst=M&rft.date=1991-01-01&rft.volume=58&rft.issue=2&rft.spage=286&rft.isbn=&rft.btitle=&rft.title=Journal+of+Invertebrate+Pathology&rft.issn=00222011&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Apis mellifera; Apidae; Hymenoptera; microflora; diseases; reviews; pests ER - TY - JOUR T1 - Isoforms of soybean seed oil body membrane protein 24 kDa oleosin are encoded by closely related cDNAs. AN - 16187163; 2725618 AB - We have characterized two cDNA clones for 24 kDa soybean oleosin, the seed oil body membrane protein. Differences in the predicted amino acid sequences of the two clones and the presence of a doublet on immunoblots indicate that 24 kDa oleosin exists in at least two isoforms in soybean. The predicted amino acid sequence also contains a unique carboxy terminal region that is dominated by a series of different tandem amino acid repeats. JF - Plant Molecular Biology AU - Kalinski, A AU - Loer, D S AU - Weisemann, J M AU - Matthews, B F AU - Herman, E M AD - Plant Mol. Biol. Lab., Agric. Res. Serv., USDA, Beltsville, MD 20705, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1095 EP - 1098 VL - 17 IS - 5 SN - 0167-4412, 0167-4412 KW - Glycine max KW - amino acid sequence KW - cDNA KW - genes KW - nucleotide sequence KW - oleosin KW - predictions KW - seeds KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Biochemistry Abstracts 2: Nucleic Acids; Genetics Abstracts KW - N 14640:Structure & sequence KW - G 07355:GENERAL) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16187163?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Plant+Molecular+Biology&rft.atitle=Isoforms+of+soybean+seed+oil+body+membrane+protein+24+kDa+oleosin+are+encoded+by+closely+related+cDNAs.&rft.au=Kalinski%2C+A%3BLoer%2C+D+S%3BWeisemann%2C+J+M%3BMatthews%2C+B+F%3BHerman%2C+E+M&rft.aulast=Kalinski&rft.aufirst=A&rft.date=1991-01-01&rft.volume=17&rft.issue=5&rft.spage=1095&rft.isbn=&rft.btitle=&rft.title=Plant+Molecular+Biology&rft.issn=01674412&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - nucleotide sequence; cDNA; amino acid sequence; genes; seeds ER - TY - JOUR T1 - Isolation and characterization of cDNA clones for NADP-malic enzyme from leaves of Flaveria : Transcript abundance distinguishes C sub(3), C sub(3)-C sub(4) and C sub(4) photosynthetic types. AN - 16181781; 2725526 AB - To study the control of enhanced synthesis of enzymes associated with C sub(4) photosynthesis relative to non-C sub(4) plants, we investigated the expression of NADP-malic enzyme (NADP-ME) in different photosynthetic types of Flaveria). Complementary DNA clones encoding NADP-ME were constructed using poly(A) super(+) RNA from leaves of Flaveria trinervia) (C sub(4)) and F. linearis) (C sub(3)-C sub(4)) and identified by homology to a cDNA clone (500 bp) encoding NADP-ME from maize (Zea mays) L.). The sequence of one clone from each species was determined. The Flaveria clones were 90% homologous over a 564 nucleotide region encoding the carboxy terminal end of the derived polypeptide; sequence similarity to the maize transcript in this region was 71%. JF - Plant Molecular Biology AU - Rajeevan AU - Bassett, CL AU - Hughes, D W AD - USDA-ARS, Russell Res. Cent., Athens, GA 30613, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 371 EP - 383 VL - 17 IS - 3 SN - 0167-4412, 0167-4412 KW - Flaveria KW - amino acid sequence KW - cDNA KW - genes KW - leaves KW - malate dehydrogenase (oxaloacetate-decarboxylating) KW - nucleotide sequence KW - predictions KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Genetics Abstracts; Biochemistry Abstracts 2: Nucleic Acids KW - N 14640:Structure & sequence KW - G 07353:GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16181781?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Plant+Molecular+Biology&rft.atitle=Isolation+and+characterization+of+cDNA+clones+for+NADP-malic+enzyme+from+leaves+of+Flaveria+%3A+Transcript+abundance+distinguishes+C+sub%283%29%2C+C+sub%283%29-C+sub%284%29+and+C+sub%284%29+photosynthetic+types.&rft.au=Rajeevan%3BBassett%2C+CL%3BHughes%2C+D+W&rft.aulast=Rajeevan&rft.aufirst=&rft.date=1991-01-01&rft.volume=17&rft.issue=3&rft.spage=371&rft.isbn=&rft.btitle=&rft.title=Plant+Molecular+Biology&rft.issn=01674412&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - nucleotide sequence; cDNA; amino acid sequence; genes; leaves ER - TY - JOUR T1 - Survey to estimate prevalence of Leptospira interrogans infection in mature cattle in the United States. AN - 16176352; 2715577 AB - A total of 5,142 kidney tissue samples and 5,111 serum samples from mature cattle in 49 states and Puerto Rico were collected at slaughter. Age of cattle ranged from 1 to 16 years (mean, 6.6 years). Leptospires were isolated from 88 (1.7%) kidney tissues, and 2,493 (49%) sera contained antibodies against 1 or more of 12 Leptospira interrogans serovars. Isolation rates were significantly (P < 0.001) higher for beef cattle than for dairy cattle and were higher (P < 0.001) for bulls than for cows. Combined culture and immunofluorescence results indicated that 2% of mature cattle were renal carriers of leptospires. JF - American Journal of Veterinary Research AU - Miller, DA AU - Wilson, MA AU - Beran, G W AD - Natl. Vet. Serv. Lab., Sci. and Technol., Anim. and Plant Health Insp. Serv., USDA, Ames, IA 50010, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1761 EP - 1765 VL - 52 IS - 11 SN - 0002-9645, 0002-9645 KW - Leptospira interrogans KW - infection KW - cattle KW - Microbiology Abstracts B: Bacteriology KW - restriction endonuclease mapping KW - USA KW - DNA KW - serological tests KW - J 02862:Infection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16176352?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Journal+of+Veterinary+Research&rft.atitle=Survey+to+estimate+prevalence+of+Leptospira+interrogans+infection+in+mature+cattle+in+the+United+States.&rft.au=Miller%2C+DA%3BWilson%2C+MA%3BBeran%2C+G+W&rft.aulast=Miller&rft.aufirst=DA&rft.date=1991-01-01&rft.volume=52&rft.issue=11&rft.spage=1761&rft.isbn=&rft.btitle=&rft.title=American+Journal+of+Veterinary+Research&rft.issn=00029645&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - USA; serological tests; restriction endonuclease mapping; DNA ER - TY - CONF T1 - Immunobiology of hematopoietic colony-stimulating factors: Potential application to disease prevention in the bovine. AN - 16167273; 2705008 AB - Colony-stimulating factors are a family of glycoproteins instrumental in regulation of hematopoiesis and inflammation. Clinical effects of various colony-stimulating factors have been reported in murine and human hosts. This review summarizes findings from some clinical trial evaluations of macrophage colony-stimulating factor, granulocyte-macrophage colony-stimulating factor, granulocyte colony-stimulating factor, interleukin-1, interleukin-3, interleukin-4, interleukin-5, interleukin-6 and interleukin-7 administration to other species. Recently, colony-stimulating factor administration to cattle and its potential application to disease control in bovine preventive medicine programs has been investigated. Data from recent hematological, immunological, and intramammary bacterial (Staphylococcus aureus and Klebsiella pneumoniae challenge studies in diary cows are reviewed. Rate of new infections, as well as duration and severity of infection, were reduced by pretreatment of cows with granulocyte-colony-stimulating factor. JF - Journal of Dairy Science AU - Kehrli, ME Jr AU - Cullor, J S AU - Nickerson, S C Y1 - 1991 PY - 1991 DA - 1991 SP - 4399 EP - 4412 VL - 74 IS - 12 KW - cattle KW - colony-stimulating factors KW - cytokines KW - hematopoiesis KW - interleukin KW - Biotechnology and Bioengineering Abstracts; Immunology Abstracts; Microbiology Abstracts B: Bacteriology; Agricultural and Environmental Biotechnology Abstracts KW - granulocyte colony-stimulating factor KW - infectious diseases KW - mastitis KW - dairies KW - Staphylococcus aureus KW - disease control KW - Klebsiella pneumoniae KW - bone marrow KW - J 02834:Vaccination and immunization KW - F 06773:Interferons KW - J 02862:Infection KW - W2 32330:Cytokines KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16167273?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Dairy+Science&rft.atitle=Immunobiology+of+hematopoietic+colony-stimulating+factors%3A+Potential+application+to+disease+prevention+in+the+bovine.&rft.au=Kehrli%2C+ME+Jr%3BCullor%2C+J+S%3BNickerson%2C+S+C&rft.aulast=Kehrli&rft.aufirst=ME&rft.date=1991-01-01&rft.volume=74&rft.issue=12&rft.spage=4399&rft.isbn=&rft.btitle=&rft.title=Journal+of+Dairy+Science&rft.issn=00220302&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Ovipositional response of tobacco budworm moths (Lepidoptera: Noctuidae) to cuticular labdanes and sucrose esters from the green leaves of Nicotiana glutinosa L. (Solanaceae). AN - 16165066; 2709548 AB - Field plots of three accessions of Nicotiana glutinosa L. (Nicotiana species accessions 24, 24A, and 24B) at Oxford, North Carolina and Tifton, Georgia were heavily damaged by natural populations of tobacco budworms, Heliothis virescens (F.), during 1985-1989. Experiments in outdoor screen cages demonstrated that all accessions of N. glutinosa were as prone to oviposition by H. virescens moths as was NC 2326, a commercial cultivar of flue-cured tobacco, N. tabacum L. However, in greenhouse experiments, tobacco budworm larvae did not survive or grow as well when placed on plants of N. glutinosa as they did when placed on plants of NC 2326. Four labdane diterpenes and two sucrose ester fractions were isolated from green leaves of the three accessions of N. glutinosa . These components were bioassayed for their effects on the ovipositional behavior of tobacco budworm moths using small screen cages in a greenhouse at Oxford, North Carolina. Labdenediol, manool, and both sucrose ester fractions stimulated tobacco budworm moths to oviposit on a tobacco budworm-resistant Tobacco Introduction, TI 1112 (PI 124166), when these materials were sprayed onto a leaf. JF - Journal of Chemical Ecology AU - Jackson, D M AU - Severson, R F AU - Sisson, V A AU - Stephenson, M G AD - ARS, USDA, Crops Res. Lab., Oxford, NC 27565, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 2489 EP - 2506 VL - 17 IS - 12 SN - 0098-0331, 0098-0331 KW - oviposition KW - labdanes KW - sucrose esters KW - Chemoreception Abstracts; Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - Lepidoptera KW - chemical stimuli KW - Nicotiana glutinosa KW - Noctuidae KW - Heliothis virescens KW - Z 05167:Behavior KW - D 04659:Insects KW - Y 25693:Insects KW - R 18051:Reproductive behavior UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16165066?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Ovipositional+response+of+tobacco+budworm+moths+%28Lepidoptera%3A+Noctuidae%29+to+cuticular+labdanes+and+sucrose+esters+from+the+green+leaves+of+Nicotiana+glutinosa+L.+%28Solanaceae%29.&rft.au=Jackson%2C+D+M%3BSeverson%2C+R+F%3BSisson%2C+V+A%3BStephenson%2C+M+G&rft.aulast=Jackson&rft.aufirst=D&rft.date=1991-01-01&rft.volume=17&rft.issue=12&rft.spage=2489&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Nicotiana glutinosa; Noctuidae; Lepidoptera; Heliothis virescens; chemical stimuli ER - TY - CONF T1 - Applications of image analysis to soil micromorphology. AN - 16163856; 2705507 AB - The technique of image analysis allows scientists to study images as digital data. The equipment and procedure for image analysis are briefly discussed. Its application to soil thin sections is illustrated. Examples of potential applications in soil ecological studies are given. It is proposed that image analysis is most useful in soil ecology to study the effect of faunal activity soil structure and litter turnover. JF - Agriculture, Ecosystems & Environment AU - Bui, EN Y1 - 1991 PY - 1991 DA - 1991 SP - 305 EP - 313 VL - 34 IS - 1 KW - soil morphology KW - image analysis KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Ecology Abstracts KW - soil microorganisms KW - A 01113:General KW - D 04600:Soil KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16163856?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Agriculture%2C+Ecosystems+%26+Environment&rft.atitle=Applications+of+image+analysis+to+soil+micromorphology.&rft.au=Bui%2C+EN&rft.aulast=Bui&rft.aufirst=EN&rft.date=1991-01-01&rft.volume=34&rft.issue=1&rft.spage=305&rft.isbn=&rft.btitle=&rft.title=Agriculture%2C+Ecosystems+%26+Environment&rft.issn=01678809&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - The effect of a heat-stable enterotoxin isolated from Escherichia coli on pheromone production in fat bodies isolated from male boll weevils. AN - 16159692; 2696496 JF - Entomologia Experimentalis et Applicata AU - Wiygul, G AU - Sikorowski, P P AD - USDA-ARS, Boll Weevil Res. Lab., P.O. Box 5367, Mississippi State, MS 39762, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 305 EP - 308 VL - 60 IS - 3 SN - 0013-8703, 0013-8703 KW - Anthonomus grandis KW - Coleoptera KW - Curculionidae KW - Escherichia coli KW - effects on KW - enterotoxins KW - fat body KW - mass rearing KW - pheromones KW - production KW - thermal stability KW - toxicity KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Entomology Abstracts; Chemoreception Abstracts KW - J 02870:Invertebrate bacteriology KW - Z 05182:Pathology KW - R 18054:Others KW - J 02823:In vitro and in vivo effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16159692?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Entomologia+Experimentalis+et+Applicata&rft.atitle=The+effect+of+a+heat-stable+enterotoxin+isolated+from+Escherichia+coli+on+pheromone+production+in+fat+bodies+isolated+from+male+boll+weevils.&rft.au=Wiygul%2C+G%3BSikorowski%2C+P+P&rft.aulast=Wiygul&rft.aufirst=G&rft.date=1991-01-01&rft.volume=60&rft.issue=3&rft.spage=305&rft.isbn=&rft.btitle=&rft.title=Entomologia+Experimentalis+et+Applicata&rft.issn=00138703&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - mass rearing; pheromones; fat body; enterotoxins ER - TY - JOUR T1 - 1-Aminocyclopropane-1-carboxylate synthase in tomato is encoded by a multigene family whose transcription is induced during fruit and floral senescence. AN - 16158641; 2701882 AB - The key regulatory enzyme in the biosynthetic pathway of the plant hormone ethylene is 1-aminocyclopropane-1-carboxylic acid (ACC) synthase (EC 4.1.1.14). It catalyzes the conversion of S-adenosylmethionine to ACC, the precursor of ethylene. We isolated complementary DNA sequences, ptACC2 and ptACC4, for two distinct and differentially regulated ACC synthase mRNAs expressed in ripe tomato fruit. The predicted size of the encoded polypeptides (54,690 and 53,519 Da) is similar to that of the primary in vitro translation products and to the proteins found in vivo. JF - Journal of Molecular Biology AU - Rottmann, W H AU - Peter, G F AU - Oeller, P W AU - Keller, JA AU - Shen, N F AU - Nagy, B P AU - Taylor, L P AU - Campbell, AD AU - Theologis, A AD - Plant Gene Expression Cent., ARS-USDA, 800 Buchanan St., Albany, CA 94710, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 937 EP - 961 VL - 222 IS - 4 SN - 0022-2836, 0022-2836 KW - 1-aminocyclopropane-1-carboxylate synthase KW - Lycopersicon esculentum KW - amino acid sequence KW - cDNA KW - fruits KW - genes KW - nucleotide sequence KW - predictions KW - role KW - senescence KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Genetics Abstracts; Biochemistry Abstracts 2: Nucleic Acids KW - N 14640:Structure & sequence KW - G 07355:GENERAL) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16158641?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Molecular+Biology&rft.atitle=1-Aminocyclopropane-1-carboxylate+synthase+in+tomato+is+encoded+by+a+multigene+family+whose+transcription+is+induced+during+fruit+and+floral+senescence.&rft.au=Rottmann%2C+W+H%3BPeter%2C+G+F%3BOeller%2C+P+W%3BKeller%2C+JA%3BShen%2C+N+F%3BNagy%2C+B+P%3BTaylor%2C+L+P%3BCampbell%2C+AD%3BTheologis%2C+A&rft.aulast=Rottmann&rft.aufirst=W&rft.date=1991-01-01&rft.volume=222&rft.issue=4&rft.spage=937&rft.isbn=&rft.btitle=&rft.title=Journal+of+Molecular+Biology&rft.issn=00222836&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - genes; fruits ER - TY - JOUR T1 - Pharmacokinetic properties of doxorubicin encapsulated in glutaraldehyde-treated canine erythrocytes. AN - 16158057; 2703500 AB - Canine erythrocytes were loaded with the antineoplastic drug doxorubicin and then treated with 0.16% glutaraldehyde. This procedure has been previously shown to slow down the efflux of doxorubicin from erythrocytes and to result in the selective targeting of the carrier erythrocytes to liver. Three dogs were treated with 2 different schedules of IV bolus administration of doxorubicin (0.4 mg/kg of body weight): free drug and doxorubicin encapsulated in glutaraldehyde-treated erythrocytes. Significant alterations of hematologic and hematochemical factors were not observed in the 3 dogs during and after the 2 treatments. On the basis of our findings, doxorubicin-loaded and glutaraldehyde-treated erythrocytes may potentially be used in the treatment of systemic and hepatic tumors in dogs. JF - American Journal of Veterinary Research AU - Tonetti, M AU - Astroff, AB AU - Satterfield, W AU - De Flora, A AU - Benatti, U AU - DeLoach, J R AD - USDA, Agric. Res. Serv., Food Anim. Prot. Res. Lab., Route 5, Box 810, College Station, TX 77845, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1630 EP - 1635 VL - 52 IS - 10 SN - 0002-9645, 0002-9645 KW - doxorubicin KW - treatment KW - pharmacokinetics KW - glutaraldehyde KW - dogs KW - Toxicology Abstracts KW - erythrocytes KW - encapsulation KW - X 24114:Metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16158057?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Journal+of+Veterinary+Research&rft.atitle=Pharmacokinetic+properties+of+doxorubicin+encapsulated+in+glutaraldehyde-treated+canine+erythrocytes.&rft.au=Tonetti%2C+M%3BAstroff%2C+AB%3BSatterfield%2C+W%3BDe+Flora%2C+A%3BBenatti%2C+U%3BDeLoach%2C+J+R&rft.aulast=Tonetti&rft.aufirst=M&rft.date=1991-01-01&rft.volume=52&rft.issue=10&rft.spage=1630&rft.isbn=&rft.btitle=&rft.title=American+Journal+of+Veterinary+Research&rft.issn=00029645&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - encapsulation; erythrocytes ER - TY - JOUR T1 - Analytical solution of the rectangular hyperbola for estimating daily net photosynthesis. AN - 16157439; 2697269 AB - Simulation models require algorithms that are accurate yet efficient. Many simulation models use rectangular hyperbolas to express the light-response curve for net photosynthesis. The diurnal light-distribution function must be superimposed on that functional relation and numerically integrated to obtain daily net photosynthetic amounts. Usually, leaf and ambient temperature, soil moisture, leaf-water potential, and other controlling environmental data are not available for use in large, multi-species simulation models. In this paper a procedure is given for integrating the diurnal light-response curve. The model assumes that light is evenly distributed throughout the plant canopy. The algorithm is computationally more efficient than the iterative numerical solution and is most useful for open canopies or when investigators are not concerned about simulating light depletion in relation to canopy density. JF - Ecological Modelling AU - Hanson, J D AD - USDA, ARS, 301 Howes, P.O. Box E, Fort Collins, CO 80522, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 209 EP - 216 VL - 58 IS - 1-4 SN - 0304-3800, 0304-3800 KW - photosynthesis KW - mathematical models KW - Ecology Abstracts KW - diurnal variations KW - light KW - D 04625:Plants - general KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16157439?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Modelling&rft.atitle=Analytical+solution+of+the+rectangular+hyperbola+for+estimating+daily+net+photosynthesis.&rft.au=Hanson%2C+J+D&rft.aulast=Hanson&rft.aufirst=J&rft.date=1991-01-01&rft.volume=58&rft.issue=1-4&rft.spage=209&rft.isbn=&rft.btitle=&rft.title=Ecological+Modelling&rft.issn=03043800&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - light; diurnal variations ER - TY - JOUR T1 - Effects of granulocyte colony-stimulating factor administration to periparturient cows on neutrophils and bacterial shedding. AN - 16157114; 2697173 AB - Administration of recombinant bovine granulocyte colony stimulatory factor to periparturient dairy cows was evaluated as a method to prevent periparturient immunosuppression. Eleven of 21 cows were experimentally infected with Staphylococcus aureus in one mammary quarter prior to the study. Administration of recombinant bovine granulocyte colony stimulatory factor increased the number and functional activity of neutrophils and prevented some aspects of periparturient immunosuppression in dairy cows. JF - Journal of Dairy Science AU - Kehrli, ME Jr AU - Goff, J P AU - Stevens, M G AU - Boone, T C AD - Metab. Dis. and Immunol. Lab., Natl. Anim. Dis. Cent., Agric. Res. Serv., USDA, Ames, IA 50010, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 2448 EP - 2458 VL - 74 IS - 8 SN - 0022-0302, 0022-0302 KW - granulocyte colony-stimulating factor KW - effects on KW - function KW - elimination KW - cattle KW - Microbiology Abstracts B: Bacteriology; Immunology Abstracts KW - leukocytes (neutrophilic) KW - Staphylococcus aureus KW - J 02834:Vaccination and immunization KW - F 06801:Bacteria UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16157114?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Dairy+Science&rft.atitle=Effects+of+granulocyte+colony-stimulating+factor+administration+to+periparturient+cows+on+neutrophils+and+bacterial+shedding.&rft.au=Kehrli%2C+ME+Jr%3BGoff%2C+J+P%3BStevens%2C+M+G%3BBoone%2C+T+C&rft.aulast=Kehrli&rft.aufirst=ME&rft.date=1991-01-01&rft.volume=74&rft.issue=8&rft.spage=2448&rft.isbn=&rft.btitle=&rft.title=Journal+of+Dairy+Science&rft.issn=00220302&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Staphylococcus aureus; leukocytes (neutrophilic) ER - TY - JOUR T1 - Toxicological and hematological effects of sicklepod (Cassia obtusifolia ) seeds in Sprague-Dawley rats: A subchronic feeding study. AN - 16157102; 2703437 AB - Cassia obtusifolia and its seeds, common contaminants of agricultural commodities, are toxic to cattle and poultry. Toxicity has been attributed to anthraquinones which are major constituents of C. obtusifolia , but studies of the subchronic and chronic toxicity of naturally occurring anthraquinones are limited. To investigate the subchronic (> 30 days) toxicity of C. obtusifolia seed, ten rats/sex were fed diets containing 0, 0.15, 1.5 or 5.0% C. obtusifolia seed for 13 weeks. Intermittent mild diarrhea was found in high-dose animals and body weights of high-dose males were decreased to week 10. Myeloid hyperplasia with peripheral leukocytosis, thrombocytosis and mild anemia were found in males and females fed diets containing greater than or approximate to 0.50% C. obtusifolia seed. Leukocytosis resulted from neutrophilia, whereas peripheral lymphocyte counts were unaffected. JF - Toxicon AU - Voss, KA AU - Brennecke, L H AD - Toxicol. and Mycotoxin Res. Unit, A.R.S., U.S.D.A., Richard B. Russell Agric. Res. Cent., P.O. Box 5677, College Station Rd., Athens, GA 30613, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1329 EP - 1336 VL - 29 IS - 11 SN - 0041-0101, 0041-0101 KW - Cassia obtusifolia KW - toxicity KW - rats KW - Toxicology Abstracts KW - seeds KW - X 24172:Plants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16157102?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicon&rft.atitle=Toxicological+and+hematological+effects+of+sicklepod+%28Cassia+obtusifolia+%29+seeds+in+Sprague-Dawley+rats%3A+A+subchronic+feeding+study.&rft.au=Voss%2C+KA%3BBrennecke%2C+L+H&rft.aulast=Voss&rft.aufirst=KA&rft.date=1991-01-01&rft.volume=29&rft.issue=11&rft.spage=1329&rft.isbn=&rft.btitle=&rft.title=Toxicon&rft.issn=00410101&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - seeds ER - TY - JOUR T1 - A review of the role of temperate forests in the global CO sub(2) balance. AN - 16155376; 2701317 AB - The role of temperate forests in the global carbon balance is difficult to determine because many uncertainties exist in the data, and many assumptions must be made in these determinations. Still, there is little doubt that increases in atmospheric CO sub(2) and global warming would have major effects on temperate forest ecosystems. Increases in atmospheric CO sub(2) may result in increases in photosynthesis, changes in water and nitrogen use efficiency, and changes in carbon allocation. Indirect effects of changes in global carbon balance on regional climate and on microenvironmental conditions, particularly temperature and moisture, may be more important than direct effects of increased CO sub(2) on vegetation. Increased incidence of forest perturbations might also be expected. The evidence suggests that conditions favorable to forest growth and development may exist in the northern latitudes, while southern latitude forests may undergo drought stress. JF - Journal of the Air & Waste Management Association AU - Musselman, R C AU - Fox, D G AD - Rocky Mt. Forest and Range Exp. Stn., USDA Forest Serv., Fort Collins, CO, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 798 EP - 807 VL - 41 IS - 6 SN - 1047-3289, 1047-3289 KW - temperature KW - Pollution Abstracts KW - forests KW - photosynthesis KW - vegetation KW - carbon dioxide KW - P 0000:AIR POLLUTION KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16155376?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Air+%26+Waste+Management+Association&rft.atitle=A+review+of+the+role+of+temperate+forests+in+the+global+CO+sub%282%29+balance.&rft.au=Musselman%2C+R+C%3BFox%2C+D+G&rft.aulast=Musselman&rft.aufirst=R&rft.date=1991-01-01&rft.volume=41&rft.issue=6&rft.spage=798&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Air+%26+Waste+Management+Association&rft.issn=10473289&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - forests; carbon dioxide; vegetation; photosynthesis ER - TY - JOUR T1 - The involvement of mechanical barriers in the resistance response of a field-resistant and a field-susceptible potato cultivar to Verticillium dahliae . AN - 16154156; 2696264 AB - The association of phytotoxin production by the pathogen Verticillium dahliae with the production of wilt symptoms in susceptible potato cultivars has been well documented. However, certain cultivars exhibit field resistance although isolated tissues and cell cultures of these cultivars demonstrate susceptible responses when treated with phytotoxins from V. dahliae . Therefore more than one type of resistance, other than biochemical insensitivity to phytotoxins such as hypersensitivity and mechanical barriers, may be present. We investigated several defence mechanisms, including hypersensitivity, suberization, wound periderm formation and phytoalexin production in tubers of a field-susceptible (Kennebec) and a field-resistant (Reddale) cultivar, both of which are sensitive to V. dahliae phytotoxins. Although the total number of suberized cell layers and wound periderm formed were not different between the two cultivars, the response was more rapid in the resistant cultivar. JF - Physiological and Molecular Plant Pathology AU - Vaughn, S F AU - Lulai, E C AD - USDA-ARS Red River Valley Potato Res. Lab., East Grand Forks, MN 56721, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 455 EP - 465 VL - 38 IS - 6 SN - 0885-5765, 0885-5765 KW - Verticillium dahliae KW - mechanical barriers KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - wilt KW - disease resistance KW - Solanum tuberosum KW - A 01028:Others KW - K 03089:Fungi: plant KW - A 01030:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16154156?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physiological+and+Molecular+Plant+Pathology&rft.atitle=The+involvement+of+mechanical+barriers+in+the+resistance+response+of+a+field-resistant+and+a+field-susceptible+potato+cultivar+to+Verticillium+dahliae+.&rft.au=Vaughn%2C+S+F%3BLulai%2C+E+C&rft.aulast=Vaughn&rft.aufirst=S&rft.date=1991-01-01&rft.volume=38&rft.issue=6&rft.spage=455&rft.isbn=&rft.btitle=&rft.title=Physiological+and+Molecular+Plant+Pathology&rft.issn=08855765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Solanum tuberosum; disease resistance; wilt ER - TY - JOUR T1 - Physical aspects of Hurricane Hugo in Puerto Rico. AN - 16153009; 2699142 AB - On 18 September 1989 the western part of Hurricane Hugo crossed eastern Puerto Rico and the Luquillo Experimental Forest (LEF). Storm-facing slopes on the northeastern part of the island that were within 15 km of the eye and received greater than 200 mm of rain were most affected by the storm. In the LEF and nearby area, recurrence intervals associated with Hurricane Hugo were 50 yr for wind velocity, 10 to 31 yr for stream discharge, and 5 yr for rainfall intensity. To compare the magnitudes of the six hurricanes to pass over Puerto Rico since 1899, 3 indices were developed using the standardized values of the product of: the maximum sustained wind speed at San Juan squared and storm duration; the square of the product of the maximum sustained wind velocity at San Juan and the ratio of the distance between the hurricane eye and San Juan to the distance between the eye and percentage of average annual rainfall delivered by the storm. JF - Biotropica AU - Scatena, F N AU - Larsen, M C AD - Inst. Trop. For., USDA Forest Serv., Southern Forest Exp. Stn., Call Box 25000, Rio Piedras, Puerto Rico 00928-2500 Y1 - 1991 PY - 1991 DA - 1991 SP - 317 EP - 323 VL - 23 IS - 4 SN - 0006-3606, 0006-3606 KW - hurricanes KW - physical characteristics KW - Puerto Rico KW - Ecology Abstracts KW - D 04100:Terrestrial ecosystems - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16153009?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biotropica&rft.atitle=Physical+aspects+of+Hurricane+Hugo+in+Puerto+Rico.&rft.au=Scatena%2C+F+N%3BLarsen%2C+M+C&rft.aulast=Scatena&rft.aufirst=F&rft.date=1991-01-01&rft.volume=23&rft.issue=4&rft.spage=317&rft.isbn=&rft.btitle=&rft.title=Biotropica&rft.issn=00063606&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Special issue: Response to Caribbean hurricanes. N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Sequence of the bovine CD44 cDNA: Comparison with human and mouse sequences. AN - 16150980; 2699656 AB - CD44 is a cell-surface glycoprotein involved in leukocyte adherence, T-cell activation and lymphocyte homing. We have isolated and sequenced a cDNA clone which encodes for bovine CD44. The predicted amino acid sequence of bovine CD44 has an overall high similarity with that of human and mouse CD44, 79.5 and 73.2%, respectively. In all three species, CD44 has a similar transmembrane region and cytoplasmic tail. JF - Molecular Immunology AU - Bosworth, B T AU - St John, T AU - Gallatin, WM AU - Harp, JA AD - Natl. Anim. Dis. Cent., USDA-Agric. Res. Serv., P.O. Box 70, Ames, IA 50010, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1131 EP - 1135 VL - 28 IS - 10 SN - 0161-5890, 0161-5890 KW - CD44 antigen KW - amino acid sequence KW - cDNA KW - cattle KW - genes KW - nucleotide sequence KW - predictions KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Genetics Abstracts; Biochemistry Abstracts 2: Nucleic Acids; Immunology Abstracts KW - N 14640:Structure & sequence KW - F 06780:Genetics KW - G 07240:Immunogenetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16150980?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Molecular+Immunology&rft.atitle=Sequence+of+the+bovine+CD44+cDNA%3A+Comparison+with+human+and+mouse+sequences.&rft.au=Bosworth%2C+B+T%3BSt+John%2C+T%3BGallatin%2C+WM%3BHarp%2C+JA&rft.aulast=Bosworth&rft.aufirst=B&rft.date=1991-01-01&rft.volume=28&rft.issue=10&rft.spage=1131&rft.isbn=&rft.btitle=&rft.title=Molecular+Immunology&rft.issn=01615890&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - genes ER - TY - JOUR T1 - Bioherbicidal potential of Fusarium moniliforme and its phytotoxin, fumonisin. AN - 16147146; 2691457 AB - An isolate of Fusarium moniliforme (Sheldon) (JW 1) was discovered on greenhouse-grown jimsonweed in Mississippi, U.S.A., in 1990. Applications of aqueous suspensions of spores/mycelia (>1 x 10 super(7) propagules/ml) grown on potato-dextrose agar to the potted soil in which 2- to 4-wk-old jimsonweed plants were grown caused local lesions or mosaic-like patterns on the leaves and inhibited growth. When the fungus was grown on an autoclaved rice medium and the ground mixture applied to jimsonweed plants, the plants wilted within 24 h and died after 48 h. Fumonisin B sub(1) applied in water at 2.5 mu g/100 mu l to excised jimsonweed leaves caused the same symptomology (i.e., soft rot diffusing along leaf veins) within 24 h as the cell-free extract or the crude culture filtrates. JF - Weed Science AU - Abbas, H K AU - Boyette, C D AU - Hoagland, R E AU - Vesonder, R F AD - USDA/ARS, South. Weed Sci. Lab., Stoneville, MS 38776, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 673 EP - 677 VL - 39 IS - 4 SN - 0043-1745, 0043-1745 KW - Fusarium moniliforme KW - phytotoxicity KW - mycoherbicides KW - fumonisin B1 KW - Datura stramonium KW - biological control KW - blight KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - A 01028:Others KW - K 03089:Fungi: plant KW - K 03040:Fungi KW - W 30513:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16147146?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Weed+Science&rft.atitle=Bioherbicidal+potential+of+Fusarium+moniliforme+and+its+phytotoxin%2C+fumonisin.&rft.au=Abbas%2C+H+K%3BBoyette%2C+C+D%3BHoagland%2C+R+E%3BVesonder%2C+R+F&rft.aulast=Abbas&rft.aufirst=H&rft.date=1991-01-01&rft.volume=39&rft.issue=4&rft.spage=673&rft.isbn=&rft.btitle=&rft.title=Weed+Science&rft.issn=00431745&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Datura stramonium; blight; biological control ER - TY - JOUR T1 - Pasteuria nishizawae sp. nov., a mycelial and endospore-forming bacterium parasitic on cyst nematodes of genera Heterodera and Globodera . AN - 16137497; 2683196 AB - This study describes Pasteuria nishizawae sp. nov., a fourth species of the genus Pasteuria . This mycelial and endospore-forming bacterium parasitizes the adult females of cyst-forming nematodes in the genera Heterodera and Globodera . The distinct ultrastructural features and unique host range found for this bacterium separate it from two closely related species, Pasteuria penetrans , which parasitizes several species of root-knot nematodes of the genus Meloidogyne , and Pasteuria thornei , which appears to parasitize only one species of the root-lesion nematode, Pratylenchus brachyurus . Because these obligate bacterial parasites of nematodes have not been cultured axenically, the taxonomic relationships described here for each species are based mainly on developmental morphology. JF - Research in Microbiology AU - Sayre, R M AU - Wergin, W P AU - Schmidt, J M AU - Starr, M P AD - Nematology Lab., Plant Sci. Inst., Beltsville Agric. Res. Cent., USDA ARS, Beltsville, MD 20705-2350, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 551 EP - 564 VL - 142 IS - 5 SN - 0923-2508, 0923-2508 KW - Pasteuria nishizawae KW - sp.nov. KW - ultrastructure KW - Globodera KW - Heterodera KW - biological control KW - soil KW - taxonomy KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts B: Bacteriology KW - A 01014:Others KW - J 02710:Identification, taxonomy and typing KW - W 30513:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16137497?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Research+in+Microbiology&rft.atitle=Pasteuria+nishizawae+sp.+nov.%2C+a+mycelial+and+endospore-forming+bacterium+parasitic+on+cyst+nematodes+of+genera+Heterodera+and+Globodera+.&rft.au=Sayre%2C+R+M%3BWergin%2C+W+P%3BSchmidt%2C+J+M%3BStarr%2C+M+P&rft.aulast=Sayre&rft.aufirst=R&rft.date=1991-01-01&rft.volume=142&rft.issue=5&rft.spage=551&rft.isbn=&rft.btitle=&rft.title=Research+in+Microbiology&rft.issn=09232508&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Heterodera; Globodera; taxonomy; biological control; soil ER - TY - JOUR T1 - Wheat yield depression associated with conservation tillage caused by root pathogens in the soil not phytotoxins from the straw. AN - 16135899; 2688600 AB - Wheat planted directly into soil mulched with straw of a previous wheat crop (mulch or conservation tillage) typically grows and yields poorly relative to that planted into a prepared seedbed with straw residue burned or buried (clean tillage). The results of experiments reported herein indicate that the causal microorganisms are in the soil and not the straw as would be required if phytotoxic straw decomposition products were important. The injury in these experiments resulted from at least three root diseases, all favored by the lack of crop rotation. The three root diseases were take-all caused by Gaeumannomyces graminis var. tritici, Rhizoctonia root rot caused mainly by Rhizoctonia solani AG8, and Pythium root rot caused by several Pythium spp. JF - Soil Biology and Biochemistry AU - Cook, R J AU - Haglund, WA AD - USDA, ARS Root Dis. and Biol. Control Res. Unit, 367 Johnson Hall, Washington State Univ., Pullman, WA 99164-6430, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1125 EP - 1132 VL - 23 IS - 12 SN - 0038-0717, 0038-0717 KW - soil-borne diseases KW - disease reservoirs KW - var.tritici KW - mulches KW - conservation tillage KW - Ecology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - take-all KW - Gaeumannomyces graminis KW - Triticum aestivum KW - root rot KW - Rhizoctonia solani KW - Pythium KW - tillage KW - phytopathogenic fungi KW - K 03089:Fungi: plant KW - D 04600:Soil KW - A 01026:Gramineous crops UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16135899?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Biology+and+Biochemistry&rft.atitle=Wheat+yield+depression+associated+with+conservation+tillage+caused+by+root+pathogens+in+the+soil+not+phytotoxins+from+the+straw.&rft.au=Cook%2C+R+J%3BHaglund%2C+WA&rft.aulast=Cook&rft.aufirst=R&rft.date=1991-01-01&rft.volume=23&rft.issue=12&rft.spage=1125&rft.isbn=&rft.btitle=&rft.title=Soil+Biology+and+Biochemistry&rft.issn=00380717&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Rhizoctonia solani; Gaeumannomyces graminis; Pythium; Triticum aestivum; phytopathogenic fungi; root rot; take-all; tillage ER - TY - JOUR T1 - Legume residue and soil water effects on denitrification in soils of different textures. AN - 16135455; 2688632 AB - Legume cover crops commonly used to supply additional N and reduce potential for over-winter N leaching losses may also influence denitrification depending upon soil water status and soil type. Interrelationships between incorporated hairy vetch (Vicia villosa ) residue and soil water status on denitrification in coarse, medium and fine textured soils were investigated in the laboratory. Repacked soil cores were incubated, 10, 20 and 30 d with and without acetylene (C sub(2)H sub(2)). Denitrification losses were 20-200 mu g N/kg from each soil when 60% of the soil pore space was filled with water and increased to from 14.0 to 18.6 mg N/kg at 90% water-filled-pore space (WFPS). Incorporation of vetch residue (2.5 g/kg) greatly stimulated denitrification (51.1-99.5 mg N/kg), probably due to greater availability of organic C as indicated by higher CO sub(2) emissions. JF - Soil Biology and Biochemistry AU - Aulakh AU - Doran, J W AU - Walters, D T AU - Power, J F AD - USDA-ARS, 119 Keim Hall, East Campus, Univ. Nebraska, Lincoln, NE 68583-0915, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1161 EP - 1167 VL - 23 IS - 12 SN - 0038-0717, 0038-0717 KW - Vicia villosa KW - water-filled-pore space KW - Ecology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - crop residues KW - soil moisture KW - denitrifying bacteria KW - soil texture KW - denitrification KW - soil amendment KW - A 01051:Nitrogen cycle KW - J 02901:Soil and plants KW - A 01055:Other soil treatments KW - D 04600:Soil UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16135455?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Biology+and+Biochemistry&rft.atitle=Legume+residue+and+soil+water+effects+on+denitrification+in+soils+of+different+textures.&rft.au=Aulakh%3BDoran%2C+J+W%3BWalters%2C+D+T%3BPower%2C+J+F&rft.aulast=Aulakh&rft.aufirst=&rft.date=1991-01-01&rft.volume=23&rft.issue=12&rft.spage=1161&rft.isbn=&rft.btitle=&rft.title=Soil+Biology+and+Biochemistry&rft.issn=00380717&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - crop residues; denitrifying bacteria; denitrification; soil amendment; soil texture; soil moisture ER - TY - JOUR T1 - Specific hunger in Anastrepha ludens (Diptera: Tephritidae): Effects on attractiveness of proteinaceous and fruit-derived lures. AN - 16129503; 2678007 AB - Specific hunger and effects of specific hunger on attractiveness of three types of olfactory feeding attractants to a laboratory strain of Mexican fruit fly, Anastrepha ludens (Loew), were investigated in laboratory bioassays and greenhouse flight chamber experiments. Newly emerged flies (up to 4 d old) fed preferentially on sugar over protein, whereas 5-9-d-old flies undergoing sexual maturation fed about equally on sugar and protein. Sugar or protein deprivation increased feeding preference for sugar or protein, respectively, whereas constant access to sugar or protein decreased preference for the respective nutrient. Sugar hunger, whether age-dependent or deprivation-induced, increased attractiveness to flies of CEH, a fruit-derived attractant consisting of 1,8-cineole, ethyl hexanoate and hexanol, relative to two proteinaceous lures. JF - Environmental Entomology AU - Robacker, D C AD - Crop Qual. and Fruit Insects Res., USDA-ARS, Weslaco, TX 78596, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1680 EP - 1686 VL - 20 IS - 6 SN - 0046-225X, 0046-225X KW - Anastrepha ludens KW - Chemoreception Abstracts; Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - attractants KW - Tephritidae KW - hunger KW - bait KW - nutrient deficiency KW - Diptera KW - Z 05167:Behavior KW - D 04659:Insects KW - Y 25693:Insects KW - R 18052:Feeding UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16129503?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Specific+hunger+in+Anastrepha+ludens+%28Diptera%3A+Tephritidae%29%3A+Effects+on+attractiveness+of+proteinaceous+and+fruit-derived+lures.&rft.au=Robacker%2C+D+C&rft.aulast=Robacker&rft.aufirst=D&rft.date=1991-01-01&rft.volume=20&rft.issue=6&rft.spage=1680&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Tephritidae; Diptera; hunger; attractants; bait; nutrient deficiency ER - TY - JOUR T1 - Storage protein mobilization during germination and early seedling growth of Zea mays . AN - 16126285; 2680820 AB - Changes in general protease activity and the levels of the zein storage proteins were monitored during germination and early seedling growth of maize Zea mays . JF - Physiologia Plantarum AU - Hay, P C AU - Ramsaur, T AU - Smith, C AU - Miernyk, JA AD - Seed Biosynth. Res. Unit, USDA, ARS, Northern Reg. Res. Cent., Peoria, IL 61604, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 377 EP - 384 VL - 81 IS - 3 SN - 0031-9317, 0031-9317 KW - Zea mays KW - characterization KW - germination KW - seedlings KW - storage proteins KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16126285?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physiologia+Plantarum&rft.atitle=Storage+protein+mobilization+during+germination+and+early+seedling+growth+of+Zea+mays+.&rft.au=Hay%2C+P+C%3BRamsaur%2C+T%3BSmith%2C+C%3BMiernyk%2C+JA&rft.aulast=Hay&rft.aufirst=P&rft.date=1991-01-01&rft.volume=81&rft.issue=3&rft.spage=377&rft.isbn=&rft.btitle=&rft.title=Physiologia+Plantarum&rft.issn=00319317&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - An active pseudopeptide analog of the leucokinin insect neuropeptide family. AN - 16123348; 2679239 AB - A pseudopeptide analog of the active core of the leucokinin insect neuropeptide family was synthesized and found to retain myotropic activity. The activity of the pseudopeptide was not destroyed upon exposure to aminopeptidase M. JF - International Journal of Peptide and Protein Reseach AU - Nachman, R J AU - Holman, G M AU - Haddon, W F AU - Vensel, W H AD - USDA, ARS., VTERL, F&B Rd., Route 5, Box 810, College Station, TX 77840, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 220 EP - 223 VL - 37 IS - 3 SN - 0367-8377, 0367-8377 KW - Leucophaea maderae KW - aminopeptidase M KW - analogs KW - leucokinin KW - myotropic activity KW - pseudopeptides KW - synthesis KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; CSA Neurosciences Abstracts KW - N3 11061:Invertebrate nervous systems UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16123348?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Peptide+and+Protein+Reseach&rft.atitle=An+active+pseudopeptide+analog+of+the+leucokinin+insect+neuropeptide+family.&rft.au=Nachman%2C+R+J%3BHolman%2C+G+M%3BHaddon%2C+W+F%3BVensel%2C+W+H&rft.aulast=Nachman&rft.aufirst=R&rft.date=1991-01-01&rft.volume=37&rft.issue=3&rft.spage=220&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Peptide+and+Protein+Reseach&rft.issn=03678377&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Evidence for ATP and ubiquitin dependent degradation of proteins in cultured bovine lens epithelial cells. AN - 16123039; 2680822 AB - We show that histone H2A, alpha -crystallin, and actin are conjugated to ubiquitin, resulting in higher molecular mass species, which are detected by anti-ubiquitin antibodies. These proteins are also degraded in cell-free assays containing BLE cell supernatants under physiological conditions in an ATP/Mg super(2+)-dependent manner. Observation of super(125)I-labeled proteolytic fragments was made after SDS polyacrylamide gel electrophoresis of the assays. Quantitation of trichloroacetic acid-soluble radiolabeled fragments generated in the presence of ATP/Mg super(2+) revealed that, with BLE cell supernatant, 25% of the histone H2A was degraded in 3 hr. Proteolysis of alpha -crystallin and actin amounted to 2 multiplied by 3% and 2 multiplied by 9%, respectively. JF - Experimental Eye Research AU - Jahngen-Hodge, J AU - Laxman, E AU - Zuliani, A AU - Tayor, A AD - Lab. Nutr. and Cataract Res., USDA Hum. Nutr. Res. Cent. Aging, Tufts Univ., 711 Washington St., Boston, MA 02111, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 341 EP - 347 VL - 52 IS - 3 SN - 0014-4835, 0014-4835 KW - ATP KW - actin KW - alpha -crystallin KW - cattle KW - cells KW - conjugation KW - degradation KW - dependent KW - eye lens KW - histone H2A KW - ubiquitin KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16123039?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Experimental+Eye+Research&rft.atitle=Evidence+for+ATP+and+ubiquitin+dependent+degradation+of+proteins+in+cultured+bovine+lens+epithelial+cells.&rft.au=Jahngen-Hodge%2C+J%3BLaxman%2C+E%3BZuliani%2C+A%3BTayor%2C+A&rft.aulast=Jahngen-Hodge&rft.aufirst=J&rft.date=1991-01-01&rft.volume=52&rft.issue=3&rft.spage=341&rft.isbn=&rft.btitle=&rft.title=Experimental+Eye+Research&rft.issn=00144835&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Population dynamics of the western corn rootworm: Formulation, validation, and analysis of a simulation model. AN - 16121910; 2666949 AB - A simulation model of western corn rootworm, Diabrotica virgifera virgifera LeConte, population dynamics was developed. The model includes functions for pre-imaginal development and mortality, and ageing, development, oviposition, mortality, migration, and dispersal of adults. Model validation and sensitivity analyses were conducted. Both the timing and pattern of simulated adult emergence were similar to that observed in field populations. The simulated pattern of adult abundance throughout the season was generally consistent with that observed, as were simulated seasonal patterns of oviposition. Model predictions of egg densities at the end of the season were within one standard error of field estimates each year. In neither year did simulated survival of immature rootworms fall within two standard errors of observed estimates, suggesting that factors contributing to immature mortality were inadequately described in the model. JF - Ecological Modelling AU - Elliott, N C AU - Hein, G L AD - Plant Sci. Res. Lab., USDA Agric. Res. Serv., 1301 N. Western Rd., Stillwater, OK 74075, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 93 EP - 122 VL - 59 IS - 1-2 SN - 0304-3800, 0304-3800 KW - population dynamics KW - models KW - Entomology Abstracts; Ecology Abstracts KW - migration KW - development KW - Coleoptera KW - mortality KW - oviposition KW - Chrysomelidae KW - Diabrotica virgifera virgifera KW - D 04659:Insects KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16121910?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Modelling&rft.atitle=Population+dynamics+of+the+western+corn+rootworm%3A+Formulation%2C+validation%2C+and+analysis+of+a+simulation+model.&rft.au=Elliott%2C+N+C%3BHein%2C+G+L&rft.aulast=Elliott&rft.aufirst=N&rft.date=1991-01-01&rft.volume=59&rft.issue=1-2&rft.spage=93&rft.isbn=&rft.btitle=&rft.title=Ecological+Modelling&rft.issn=03043800&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Diabrotica virgifera virgifera; Coleoptera; Chrysomelidae; mortality; development; oviposition; migration ER - TY - JOUR T1 - Intestinal responses to enterotoxigenic Escherichia coli heat-stable toxin b in non-porcine species. AN - 16119730; 2666322 AB - The Escherichia coli heat-stable enterotoxin (STb) is the most prevalent toxin associated with diarrheagenic E. coli isolates of porcine origin. In this study, when endogenous protease activity was blocked with soybean trypsin inhibitor, intestinal secretion was stimulated by STb in jejunal loops of rats, mice, calves, and rabbits. Compared with pigs, rats, mice, and calves, rabbits were relatively insensitive to STb. These data demonstrate that the activity of STb is not a species-specific toxic activity, there is species variation in sensitivity to STb, and some common laboratory animals may have potential to be used to measure biological activity of STb. JF - American Journal of Veterinary Research AU - Whipp, S C AD - USDA, Agric. Res. Serv., Natl. Anim. Dis. Cent., P.O. Box 70, Ames, IA 50010, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 734 EP - 737 VL - 52 IS - 5 SN - 0002-9645, 0002-9645 KW - Escherichia coli KW - biological activity KW - toxin b KW - proteinase KW - rats KW - mice KW - cattle KW - Microbiology Abstracts B: Bacteriology KW - jejunum KW - J 02823:In vitro and in vivo effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16119730?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Journal+of+Veterinary+Research&rft.atitle=Intestinal+responses+to+enterotoxigenic+Escherichia+coli+heat-stable+toxin+b+in+non-porcine+species.&rft.au=Whipp%2C+S+C&rft.aulast=Whipp&rft.aufirst=S&rft.date=1991-01-01&rft.volume=52&rft.issue=5&rft.spage=734&rft.isbn=&rft.btitle=&rft.title=American+Journal+of+Veterinary+Research&rft.issn=00029645&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - jejunum ER - TY - JOUR T1 - Bronchiolar metaplasia and Ulex europaeus agglutinin I (UEA-I) affinity in Mycoplasma hyopneumoniae -infected lungs of six pigs. AN - 16118411; 2666278 JF - Veterinary Pathology AU - Ackermann, M R AU - Debey, M C AU - Debey, B M AD - USDA, ARS, Natl. Anim. Dis. Cent., P.O. Box 70, Ames, IA 50010, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 533 EP - 535 VL - 28 IS - 6 SN - 0300-9858, 0300-9858 KW - Mycoplasma hyopneumoniae KW - pigs KW - Microbiology Abstracts B: Bacteriology KW - agglutinins KW - lung KW - Ulex europaeus KW - metaplasia KW - pneumonia KW - J 02862:Infection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16118411?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Veterinary+Pathology&rft.atitle=Bronchiolar+metaplasia+and+Ulex+europaeus+agglutinin+I+%28UEA-I%29+affinity+in+Mycoplasma+hyopneumoniae+-infected+lungs+of+six+pigs.&rft.au=Ackermann%2C+M+R%3BDebey%2C+M+C%3BDebey%2C+B+M&rft.aulast=Ackermann&rft.aufirst=M&rft.date=1991-01-01&rft.volume=28&rft.issue=6&rft.spage=533&rft.isbn=&rft.btitle=&rft.title=Veterinary+Pathology&rft.issn=03009858&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Ulex europaeus; agglutinins; lung; pneumonia; metaplasia ER - TY - JOUR T1 - Modeling postdiapause egg and nymphal development of the white apple leafhopper (Homoptera: Cicadellidae). AN - 16118073; 2672706 AB - Constant-temperature development studies were conducted with overwintering postdiapause eggs and first-generation nymphal stages of white apple leafhopper, Typhlocyba pomaria McAtee. Plots of development rates versus temperature were nonlinear over the range of temperatures tested, 13-30 degree C. Optimum nymphal development for each stage occurred over a narrow range of temperatures, 26-28 degree C. Developmental rates (times) for each life stage were normalized and fit to cumulative curves of development (Weibull and logistic functions) to produce a predictive phenology model. Comparison of these curves with the development of two nymphal cohorts under field temperatures showed that the model was significant. However, the fit of the model to data on cumulative egg hatch from three orchards was poor. JF - Environmental Entomology AU - Knight, AL AU - Beers, E H AU - Elsner, E A AD - USDA-ARS, 3706 W. Nob Hill Blvd., Yakima, WA 98902, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1659 EP - 1664 VL - 20 IS - 6 SN - 0046-225X, 0046-225X KW - Typhlocyba pomaria KW - models KW - nymphs KW - Ecology Abstracts; Entomology Abstracts KW - eggs KW - Cicadellidae KW - development KW - phenology KW - Homoptera KW - Z 05197:Habits & life histories KW - D 04659:Insects KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16118073?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Modeling+postdiapause+egg+and+nymphal+development+of+the+white+apple+leafhopper+%28Homoptera%3A+Cicadellidae%29.&rft.au=Knight%2C+AL%3BBeers%2C+E+H%3BElsner%2C+E+A&rft.aulast=Knight&rft.aufirst=AL&rft.date=1991-01-01&rft.volume=20&rft.issue=6&rft.spage=1659&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Cicadellidae; Homoptera; phenology; development; eggs ER - TY - JOUR T1 - Mountain pine beetle offspring characteristics associated with females producing first and second broods, male presence, and egg gallery length. AN - 16116745; 2672902 AB - Three groups of mountain pine beetles, Dendroctonus ponderosae Hopkins, were placed in fresh lodgepole pine, Pinus contorta Douglas var. latifolia Engelmann, billets and allowed to construct egg galleries. Group I consisted of reemerged females that had previously made egg galleries in the field; group II consisted of new females allowed to mate, then males were removed; and group III consisted of new females with males present throughout gallery construction. Offspring from these rearings were compared by gallery sections for brood production, rate of emergence, size, and sex ratio. Reemerged females were as successful in establishing galleries as new females but produced significantly fewer beetles than new females with males present. Offspring of new females emerged at a faster rate than those of reemerged females. Offspring from reemerged females were larger than those of group II females, but not those from group III females. JF - Environmental Entomology AU - Amman, G D AU - Bartos, D L AD - Intermountain Res. Stn., Forest Serv., USDA, Ogden, UT 84401, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1562 EP - 1567 VL - 20 IS - 6 SN - 0046-225X, 0046-225X KW - Dendroctonus ponderosae KW - Ecology Abstracts; Entomology Abstracts KW - Scolytidae KW - Coleoptera KW - reproductive effort KW - phenology KW - Pinus contorta latifolia KW - recruitment KW - D 04659:Insects KW - Z 05192:Reproductive behavior UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16116745?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Mountain+pine+beetle+offspring+characteristics+associated+with+females+producing+first+and+second+broods%2C+male+presence%2C+and+egg+gallery+length.&rft.au=Amman%2C+G+D%3BBartos%2C+D+L&rft.aulast=Amman&rft.aufirst=G&rft.date=1991-01-01&rft.volume=20&rft.issue=6&rft.spage=1562&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinus contorta latifolia; Coleoptera; Scolytidae; phenology; recruitment; reproductive effort ER - TY - JOUR T1 - Toward a general model of rangeland grasshopper (Orthoptera: Acrididae) phenology in the steppe region of Montana. AN - 16116718; 2672890 AB - A 4-yr study was conducted to examine the phenology of rangeland grasshoppers at 12 sites throughout Montana. A six-species complex of common and economically important rangeland grasshoppers was selected to facilitate comparisons between sites in this environmentally heterogenous state. Results showed that a published phenology model provided good estimates of "general" grasshopper phenology for each site and year. Comparisons of developmental "signposts" (75% first instar, peak second to fifth instars, and 75% adults) for grasshoppers between sites and years indicated that they can be used by resource managers for estimating when development stages of rangeland grasshoppers are likely to occur. The developmental signposts were separated, on average, by 8-12 d. Implications of these results for rangeland insect pest management are discussed. JF - Environmental Entomology AU - Kemp, W P AU - Dennis, B AD - USDA-Agric. Res. Serv., Rangeland Insect Lab., Bozeman, MT 59717-0366, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1504 EP - 1515 VL - 20 IS - 6 SN - 0046-225X, 0046-225X KW - Acrididae KW - Ecology Abstracts; Entomology Abstracts KW - development KW - phenology KW - models KW - Orthoptera KW - rangelands KW - USA, Montana KW - Z 05205:Populations & general ecology KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16116718?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Toward+a+general+model+of+rangeland+grasshopper+%28Orthoptera%3A+Acrididae%29+phenology+in+the+steppe+region+of+Montana.&rft.au=Kemp%2C+W+P%3BDennis%2C+B&rft.aulast=Kemp&rft.aufirst=W&rft.date=1991-01-01&rft.volume=20&rft.issue=6&rft.spage=1504&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Orthoptera; USA, Montana; phenology; development; models; rangelands ER - TY - JOUR T1 - Characterization of ozone during consecutive drought and wet years at a rural West Virginia site. AN - 16115630; 2670825 AB - Ozone concentrations at a rural-remote site in a forested region of north-central West Virginia were monitored during 1988 and 1989, a drought and wet year, respectively. During 1988, the absolute maximum average concentration for a single hour was 156 ppb, while it was only 107 ppb in 1989. Overall, the frequency of high concentrations was greater during 1988; the 120 ppb National Ambient Air Quality Standard was exceeded 17 times. The 7-h period encompassing the highest growing season concentrations for this site over the 2-yr period is 1100-1759 h EST, rather than the period 0900-1559 h originally used by the National Crop Loss Assessment Network. The 7-h growing season means (0900-1559 h) of 52.6 ppb and 47.1 ppb for 1988 and 1989, respectively, compare well to those reported for the Piedmont/Mountain/Ridge-Valley area, but are higher than those for other surrounding areas. JF - Journal of the Air & Waste Management Association AU - Edwards, P J AU - Wood, F AU - Kochenderfer, J N AD - USDA Forest Serv., Northeast. Forest Exp. Stn., Parsons, WV, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1450 EP - 1453 VL - 41 IS - 11 SN - 1047-3289, 1047-3289 KW - ozone KW - West Virginia KW - Health & Safety Science Abstracts; Pollution Abstracts KW - forests KW - droughts KW - rural areas KW - H SE6.29:DROUGHTS KW - P 0000:AIR POLLUTION KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16115630?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Air+%26+Waste+Management+Association&rft.atitle=Characterization+of+ozone+during+consecutive+drought+and+wet+years+at+a+rural+West+Virginia+site.&rft.au=Edwards%2C+P+J%3BWood%2C+F%3BKochenderfer%2C+J+N&rft.aulast=Edwards&rft.aufirst=P&rft.date=1991-01-01&rft.volume=41&rft.issue=11&rft.spage=1450&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Air+%26+Waste+Management+Association&rft.issn=10473289&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - droughts; rural areas; forests ER - TY - JOUR T1 - Effects of chlobenthiazone on aflatoxin biosynthesis in Aspergillus parasiticus and A. flavus . AN - 16114060; 2673710 AB - Isolates of Aspergillus flavus and A. parasiticus were incubated as shake and stationary submerged cultures in the presence of the fungicide chlobenthiazone. In shake culture, chlobenthiazone at 1 to 15 mu g/ml had a strong inhibitory effect on the synthesis of aflatoxin B sub(1) (AFB sub(1)) by strains of both fungi; however, inhibition of AFB sub(1) synthesis was always more pronounced in A. flavus) than in A. parasiticus . The differential effect of chlobenthiazone on A. flavus and A. parasiticus suggests that this compound affects an important enzymatic or regulatory site that differs in the two species. JF - Pesticide Biochemistry and Physiology AU - Wheeler, M H AU - Bhatnagar, D AU - Klich, MA AD - Cotton Pathol. Res. Unit, USDA, Agric. Res. Serv., Route 5, Box 805, College Station, TX 77840, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 190 EP - 197 VL - 41 IS - 2 SN - 0048-3575, 0048-3575 KW - Aspergillus parasiticus KW - biosynthesis KW - chlobenthiazone KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Toxicology Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Aspergillus flavus KW - aflatoxins KW - mycotoxins KW - A 01022:Mycotoxins KW - X 24171:Microbial KW - K 03082:Mycotoxins UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16114060?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Pesticide+Biochemistry+and+Physiology&rft.atitle=Effects+of+chlobenthiazone+on+aflatoxin+biosynthesis+in+Aspergillus+parasiticus+and+A.+flavus+.&rft.au=Wheeler%2C+M+H%3BBhatnagar%2C+D%3BKlich%2C+MA&rft.aulast=Wheeler&rft.aufirst=M&rft.date=1991-01-01&rft.volume=41&rft.issue=2&rft.spage=190&rft.isbn=&rft.btitle=&rft.title=Pesticide+Biochemistry+and+Physiology&rft.issn=00483575&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aspergillus flavus; aflatoxins; mycotoxins ER - TY - JOUR T1 - Enzymatic variation in the Varipalpus group of Aedes (Ochlerotatus) (Diptera: Culicidae). AN - 16112129; 2669138 AB - Polyacrylamide gel electrophoresis was used to examine isozyme variation in 15 populations among five species of the Varipalpus group of Aedes (Ochlerotatus) . Two related species of tree-hole breeding Aedes, A. muelleri Dyar and A. purpureipes Aitken, were also examined. Ten enzyme loci were used. Aedes sierrensis (Ludlow) displayed little variation in enzyme phenotypes throughout a 2,000-km range from San Diego, Calif., to Seattle, Wash. Two diagnostic loci (ME and IDH-1) distinguished A. sierrensis from sympatric populations of A. deserticola Zavortink in California. Also, A. monticola Belkin & McDonald and A. varipalpus (Coquillett) were distinguished by diagnostic alleles at two enzyme loci (ODH and IDH-2). A. varipalpus samples were invariant at all loci examined. JF - Annals of the Entomological Society of America AU - Bloem, S AD - USDA Guatemala Medfly Methods Stn., 12 Calle 6-96, Zona 10, Guatemala City 00010, Guatemala Y1 - 1991 PY - 1991 DA - 1991 SP - 217 EP - 227 VL - 84 IS - 3 SN - 0013-8746, 0013-8746 KW - aquatic insects KW - enzyme polymorphism KW - gel electrophoresis KW - systematics KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Genetics Abstracts; Entomology Abstracts KW - Aedes KW - USA, West KW - phylogeny KW - electrophoresis KW - Culicidae KW - Freshwater KW - isoenzymes KW - population genetics KW - USA KW - taxonomy KW - Diptera KW - Q1 08443:Population genetics KW - Q1 08303:Taxonomy and morphology KW - Z 05122:Diptera KW - Q5 08524:Public health, medicines, dangerous organisms KW - G 07300:Theoretical genetics KW - G 07367:GENERAL KW - Q1 08305:Genetics and evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16112129?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annals+of+the+Entomological+Society+of+America&rft.atitle=Enzymatic+variation+in+the+Varipalpus+group+of+Aedes+%28Ochlerotatus%29+%28Diptera%3A+Culicidae%29.&rft.au=Bloem%2C+S&rft.aulast=Bloem&rft.aufirst=S&rft.date=1991-01-01&rft.volume=84&rft.issue=3&rft.spage=217&rft.isbn=&rft.btitle=&rft.title=Annals+of+the+Entomological+Society+of+America&rft.issn=00138746&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - population genetics; phylogeny; electrophoresis; taxonomy; isoenzymes; aquatic insects; systematics; Aedes; Culicidae; Diptera; USA; USA, West; Freshwater ER - TY - JOUR T1 - Genetic structure of natural populations of Anopheles albimanus in Colombia. AN - 16112041; 2669095 AB - Electrophoretic and cytogenetic studies were undertaken on the population structure of Anopheles albimanus from 11 localities in Colombia, 3 from northern (Atlantic coast) and 8 from southern (Pacific coast) regions. Of the 25 allozyme loci examined, significant allele frequency differences were observed at 4 loci: hydroxy acid dehydrogenase (Had-1) and 3 esterases (Est-2, Est-4 and Est-6). Hybrids from matings between natural populations and the Gainesville laboratory strain were fully fertile. Estimates of genetic similarities (0.95-0.97 among southern and 0.99-1.00 among northern populations) suggest a lack of significant differentiation among distant populations in this species. Based on the chromosomal, hybridization and electrophoretic data, we concluded that mosquitoes from the 11 collections were conspecific populations of An. albimanus . JF - Journal of the American Mosquito Control Association AU - Narang, S K AU - Seawright, JA AU - Suarez, M F AD - Biosci. Res. Lab., USDA, Agric. Res. Serv., P.O. Box 5674, SU Stn., Fargo, ND 58105, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 437 EP - 445 VL - 7 IS - 3 SN - 8756-971X, 8756-971X KW - D-2-hydroxy-acid dehydrogenase KW - aquatic insects KW - biological vectors KW - carboxylesterase KW - gel electrophoresis KW - population genetics KW - variation KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Genetics Abstracts; Entomology Abstracts KW - Culicidae KW - Freshwater KW - Colombia KW - Anopheles albimanus KW - isoenzymes KW - malaria KW - Diptera KW - Q1 08443:Population genetics KW - Z 05219:Population genetics KW - G 07290:Population genetics KW - Q5 08524:Public health, medicines, dangerous organisms KW - G 07367:GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16112041?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Mosquito+Control+Association&rft.atitle=Genetic+structure+of+natural+populations+of+Anopheles+albimanus+in+Colombia.&rft.au=Narang%2C+S+K%3BSeawright%2C+JA%3BSuarez%2C+M+F&rft.aulast=Narang&rft.aufirst=S&rft.date=1991-01-01&rft.volume=7&rft.issue=3&rft.spage=437&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Mosquito+Control+Association&rft.issn=8756971X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - biological vectors; malaria; aquatic insects; isoenzymes; gel electrophoresis; Culicidae; Diptera; Anopheles albimanus; Colombia; Freshwater ER - TY - JOUR T1 - Effects on aflatoxin M sub(1) residues in milk by addition of hydrated sodium calcium aluminosilicate to aflatoxin-contaminated diets of dairy cows. AN - 16110507; 2672488 AB - Hydrated sodium calcium aluminosilicate (HSCAS), an anticaking agent for agricultural feeds, was added to aflatoxin (AF)-contaminated diets of 3 lactating dairy cows and evaluated for its potential to reduce aflatoxin M sub(1) (AFM sub(1)) residues in milk. During phase I, cows were fed alternating diets that consisted of 200 mu g of AF/kg of feed for 7 days, 0.5% HSCAS plus 200 mu g of AF/kg of feed for 7 days, and feed with the HSCAS removed for a final 7 days. The AFM sub(1) milk concentrations from the intervals with HSCAS added to diets were compared with those times when HSCAS was absent. The presence of 0.5% HSCAS in feed containing 200 mu g of AF/kg reduced AFM sub(1) secretion into the milk by an average of 0.44 mu g/L (from pretreatment of 1.85 mu g/L to 1.41 mu g/L with HSCAS, a 24% reduction). JF - American Journal of Veterinary Research AU - Harvey, R B AU - Phillips, T D AU - Ellis, JA AU - Kubena, L F AU - Huff, W E AU - Petersen, H D AD - USDA-ARS-FAPRL, Rt. 5, Box 810, College Station, TX 77845-9594, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1551 EP - 1555 VL - 52 IS - 9 SN - 0002-9645, 0002-9645 KW - aflatoxin M1 KW - levels KW - decontamination KW - detoxification KW - sodium calcium aluminosilicate KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - food contamination KW - feeds KW - cow's milk KW - A 01022:Mycotoxins KW - K 03082:Mycotoxins KW - A 01017:Human foods KW - K 03098:Spoilage & biodegradation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16110507?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Journal+of+Veterinary+Research&rft.atitle=Effects+on+aflatoxin+M+sub%281%29+residues+in+milk+by+addition+of+hydrated+sodium+calcium+aluminosilicate+to+aflatoxin-contaminated+diets+of+dairy+cows.&rft.au=Harvey%2C+R+B%3BPhillips%2C+T+D%3BEllis%2C+JA%3BKubena%2C+L+F%3BHuff%2C+W+E%3BPetersen%2C+H+D&rft.aulast=Harvey&rft.aufirst=R&rft.date=1991-01-01&rft.volume=52&rft.issue=9&rft.spage=1551&rft.isbn=&rft.btitle=&rft.title=American+Journal+of+Veterinary+Research&rft.issn=00029645&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - cow's milk; feeds; food contamination ER - TY - JOUR T1 - Influence of temperature and light on early growth of Potamogeton gramineus L. AN - 16108621; 2670521 AB - Early growth of Potamogeton gramineus L. was evaluated at several combinations of temperature (10 to 35 degree C) and light (7 to 213 umol/m super(2)/s) in laboratory cultures. Leaf production rates were positive except at 35 degree C, and generally increased at higher light levels. Leaf production was reduced at 10 or 35 degree C. At low light levels ( 65 umol/m super(2)/s) dry weight increased and appeared to be a function of temperature. JF - Journal of freshwater ecology. La Crosse, WI AU - Spencer, D F AU - Ksander, G G AD - USDA-ARS Aquat. Weed Res. Lab., Dep. Bot., Univ. California, Davis, CA 95616-8537, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 227 EP - 235 VL - 6 IS - 3 SN - 0270-5060, 0270-5060 KW - growth KW - plant physiology KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - light effects KW - Potamogeton gramineus KW - Freshwater KW - ecological distribution KW - temperature effects KW - light KW - water temperature KW - D 04640:Other angiosperms KW - Q1 08422:Environmental effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16108621?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+freshwater+ecology.+La+Crosse%2C+WI&rft.atitle=Influence+of+temperature+and+light+on+early+growth+of+Potamogeton+gramineus+L.&rft.au=Spencer%2C+D+F%3BKsander%2C+G+G&rft.aulast=Spencer&rft.aufirst=D&rft.date=1991-01-01&rft.volume=6&rft.issue=3&rft.spage=227&rft.isbn=&rft.btitle=&rft.title=Journal+of+freshwater+ecology.+La+Crosse%2C+WI&rft.issn=02705060&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - light effects; ecological distribution; plant physiology; temperature effects; water temperature; light; Potamogeton gramineus; Freshwater ER - TY - JOUR T1 - A new broad host spectrum nuclear polyhedrosis virus isolated from a celery looper, Anagrapha falcifera (Kirby), (Lepidoptera: Noctuidae). AN - 16107577; 2655962 AB - A new multiple embedded nuclear polyhedrosis virus was isolated from a fourth-instar celery looper, Anagrapha falcifera (Kirby) collected from cabbage in central Missouri in May 1985. Characterization and comparison to other multiple embedded nuclear polyhedrosis viruses via restriction endonuclease analysis indicated a unique baculovirus with a molecular weight of 85.6 x 10 super(6) Daltons. This baculovirus (AfMNPV) was propagated in cabbage looper larvae and tested against a variety of insect species in laboratory bioassays. No other currently known natural or genetically engineered baculovirus infects as many cosmopolitan, economically important insect species or causes mortality as quickly at low concentrations. This is the first baculovirus patented by the U.S. Government Patent and Trademark Office (no. 4,911,913, issued 27 March 1990). JF - Environmental Entomology AU - Hostetter, D L AU - Puttler, B AD - USDA-ARS, Soil and Water Manage. Res. Unit, 3793 N. 3600 E., Kimberly, ID 83341, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1480 EP - 1488 VL - 20 IS - 5 SN - 0046-225X, 0046-225X KW - Anagrapha falcifera KW - Lepidoptera KW - Noctuidae KW - biological control KW - nuclear polyhedrosis virus KW - pathogenicity KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Virology & AIDS Abstracts; Entomology Abstracts KW - USA, Missouri KW - A 01014:Others KW - V 22160:Viral infections of invertebrates KW - Z 05182:Pathology KW - W 30513:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16107577?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=A+new+broad+host+spectrum+nuclear+polyhedrosis+virus+isolated+from+a+celery+looper%2C+Anagrapha+falcifera+%28Kirby%29%2C+%28Lepidoptera%3A+Noctuidae%29.&rft.au=Hostetter%2C+D+L%3BPuttler%2C+B&rft.aulast=Hostetter&rft.aufirst=D&rft.date=1991-01-01&rft.volume=20&rft.issue=5&rft.spage=1480&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - nuclear polyhedrosis virus; Noctuidae; Lepidoptera; USA, Missouri; pathogenicity; biological control ER - TY - JOUR T1 - Experiments using a simulation model of the Banks grass mite (Acari: Tetranychidae) and the predatory mite Neoseiulus fallacis (Acari: Phytoseiidae) in a corn microenvironment. AN - 16107498; 2655921 AB - The simulation model (MiteSim) of the mite predator-prey system consisting of Banks grass mite, Oligonychus pratensis (Banks), and the predatory mite Neoseiulus fallacis (Garman) was used to evaluate mite population dynamics in Nebraska corn fields in relation to microenvironmental variables. Simulation results demonstrated the importance of using humidity and temperature conditions at the leaf surface instead of weather station conditions to simulate the mite system on corn in Nebraska. Also, humidity (in addition to temperature) was determined to be critically important in the population dynamics of the two mites. The temperature and humidity at the leaf surface of moderately drought-stressed corn (compared with well-watered corn) resulted in higher simulated populations of Banks grass mite. JF - Environmental Entomology AU - Berry, J S AU - Holtzer, TO AU - Norman, J M AD - Rangeland Insect Lab., USDA-ARS, Bozeman, MT 59717, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1074 EP - 1078 VL - 20 IS - 4 SN - 0046-225X, 0046-225X KW - Oligonychus pratensis KW - models KW - Ecology Abstracts; Entomology Abstracts KW - control programs KW - predator-prey interactions KW - Tetranychidae KW - Neoseiulus fallacis KW - Phytoseiidae KW - Acari KW - population dynamics KW - D 04660:Arachnids KW - D 04003:Modeling, mathematics, computer applications KW - Z 05207:Agricultural & general applied entomology KW - Z 05156:Techniques UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16107498?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Experiments+using+a+simulation+model+of+the+Banks+grass+mite+%28Acari%3A+Tetranychidae%29+and+the+predatory+mite+Neoseiulus+fallacis+%28Acari%3A+Phytoseiidae%29+in+a+corn+microenvironment.&rft.au=Berry%2C+J+S%3BHoltzer%2C+TO%3BNorman%2C+J+M&rft.aulast=Berry&rft.aufirst=J&rft.date=1991-01-01&rft.volume=20&rft.issue=4&rft.spage=1074&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Neoseiulus fallacis; Acari; Phytoseiidae; Tetranychidae; predator-prey interactions; population dynamics; control programs ER - TY - JOUR T1 - Discula destructiva sp. nov., cause of dogwood anthracnose. AN - 16107423; 2665483 AB - A detailed description is provided of the coelomycetous fungus causing dogwood anthracnose on Cornus florida, C. kousa and C. nuttallii in North America. Conidiomata are acervular and subcuticular on leaves and twigs. Conidiophores are integrated and branched with elongated cylindrical acuminate phialides. Conidia are ellipsoid, nonseptate, hyaline and guttulate. Characteristics of the fungus in pure culture and on artificially inoculated leaf discs are also presented. Isolates from the three hosts in eastern and western North America are considered conspecific. The fungus, previously known as Discula sp., is described as a new species of Discula, Discula destructiva . Its relationship to other fungi on Cornus spp. and its possible origin are discussed. JF - Mycologia AU - Redlin, S C AD - Syst. Bot. and Mycol. Lab., USDA-ARS, Beltsville Agric. Cent.-West, Beltsville, MD 20705-2350, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 633 EP - 642 VL - 83 IS - 5 SN - 0027-5514, 0027-5514 KW - Discula destructiva KW - sp.nov. KW - morphology KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - anthracnose KW - taxonomy KW - Cornus kousa KW - Cornus florida KW - Cornus nuttallii KW - K 03089:Fungi: plant KW - K 03002:Fungi KW - A 01045:Diseases & treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16107423?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mycologia&rft.atitle=Discula+destructiva+sp.+nov.%2C+cause+of+dogwood+anthracnose.&rft.au=Redlin%2C+S+C&rft.aulast=Redlin&rft.aufirst=S&rft.date=1991-01-01&rft.volume=83&rft.issue=5&rft.spage=633&rft.isbn=&rft.btitle=&rft.title=Mycologia&rft.issn=00275514&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Cornus florida; Cornus kousa; Cornus nuttallii; taxonomy; anthracnose ER - TY - JOUR T1 - Early season introduction, population increase, and movement of the filth fly parasite Muscidifurax zaraptor (Hymenoptera: Pteromalidae). AN - 16106738; 2667574 AB - The pteromalid wasp Muscidifurax zaraptor Kogan & Legner, a solitary pupal parasite of house flies and stable flies, was released in May adjacent to three populations of freeze-killed house fly pupae. Additional populations of freeze killed pupae were placed 5, 10, and 15 m from the three release locations in the four cardinal directions. After 4 wk, levels of parasitism ranged from 40 to 49% 15 m from the release point at all three locations. Hosts placed out 2 wk after the parasites were placed in the field were heavily parasitized after 1 wk of exposure, suggesting that parasites were still moving from the release point or that the parasites were remaining at the sites of host exposure. Hosts placed out 4 wk after the releases had lower levels of parasitism than those exposed in weeks 0 and 2; this suggests that some of the parasites had left the area or had died. JF - Environmental Entomology AU - Petersen, J J AU - Pawson, B M AD - Midwest Livest. Insects Res. Unit, USDA-ARS, Dep. Entomol., Univ. Nebraska, Lincoln, NE 68583, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1155 EP - 1159 VL - 20 IS - 4 SN - 0046-225X, 0046-225X KW - Muscidifurax zaraptor KW - Ecology Abstracts; Entomology Abstracts KW - parasitism KW - biological control KW - Hymenoptera KW - population dynamics KW - Pteromalidae KW - Z 05206:Medical & veterinary entomology KW - D 04710:Control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16106738?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Early+season+introduction%2C+population+increase%2C+and+movement+of+the+filth+fly+parasite+Muscidifurax+zaraptor+%28Hymenoptera%3A+Pteromalidae%29.&rft.au=Petersen%2C+J+J%3BPawson%2C+B+M&rft.aulast=Petersen&rft.aufirst=J&rft.date=1991-01-01&rft.volume=20&rft.issue=4&rft.spage=1155&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pteromalidae; Hymenoptera; parasitism; biological control; population dynamics ER - TY - JOUR T1 - Performance criteria and specifications for laminated plastic sex pheromone dispenser for Helicoverpa zea (Lepidoptera: Noctuidae). AN - 16105090; 2663034 AB - Biological and chemical evaluations of a plastic laminate sex pheromone dispenser for Helicoverpa zea (Boddie) were made in central Texas. Based on these evaluations, the following performance criteria and specifications are suggested for a dispenser to be effective for two weeks: (1) 1.27 x 2.54-cm size; (2) 400- mu m thick orange PVC outer layers; (3) 1.25 mg of a blend of (Z)-11-hexadecenal, (Z)-9-hexadecenal, (Z)-7-hexadecenal, and hexadecanal in a ratio of 87:3:2:8 formulated in the adhesive reservoir layer; (4) release rate in the range of 0.12-0.33 mu g/hr/dispenser, as measured in the laboratory at 35 degree C; and (5) residual pheromone content in the range of 0.55-1.25 mg/dispenser during the period of use. JF - Journal of Chemical Ecology AU - Lopez, JD Jr AU - Leonhardt, BA AU - Shaver, T N AD - USDA, ARS, Crop Insect Pests Manage. Res Unit., Rt. 5, Box 808, College Station, TX 77845, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 2293 EP - 2306 VL - 17 IS - 11 SN - 0098-0331, 0098-0331 KW - sex pheromone KW - hexadecenal KW - Helicoverpa zea KW - Lepidoptera KW - Noctuidae KW - pheromone traps KW - Biotechnology and Bioengineering Abstracts; Chemoreception Abstracts; Entomology Abstracts; Animal Behavior Abstracts KW - Z 05205:Populations & general ecology KW - W 30513:Pest control KW - Z 05207:Agricultural & general applied entomology KW - R 18053:Pest control KW - Y 25883:Insects KW - R 18051:Reproductive behavior KW - Y 25863:Insects KW - Z 05156:Techniques UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16105090?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Performance+criteria+and+specifications+for+laminated+plastic+sex+pheromone+dispenser+for+Helicoverpa+zea+%28Lepidoptera%3A+Noctuidae%29.&rft.au=Lopez%2C+JD+Jr%3BLeonhardt%2C+BA%3BShaver%2C+T+N&rft.aulast=Lopez&rft.aufirst=JD&rft.date=1991-01-01&rft.volume=17&rft.issue=11&rft.spage=2293&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Helicoverpa zea; Lepidoptera; Noctuidae; pheromone traps ER - TY - JOUR T1 - Stochastic model for studying boll weevil dispersal. AN - 16104772; 2656023 AB - A stochastic model simulated the dispersal of the boll weevil, Anthonomus grandis grandis Boheman, from cotton fields. The model was developed to study various factors influencing the total distance traveled by individual weevils in a population. It describes several behavioral attributes of weevil flight, such as flight speed and duration, and selected atmospheric conditions such as wind speed and direction which affect flight. The dispersing weevil population is generated by a population dynamics model which is initialized with a population of weevils entering the field from overwintering sites. A rule-based expert system adjusts the number of overwintered weevils, larval mortality, insecticide spray threshold, and spray interval in the population model to determine the number of weevils available for flight each day. JF - Environmental Entomology AU - McKibben, G H AU - Willers, J L AU - Smith, J W AU - Wagner, T L AD - Boll Weevil Res. Unit, USDA-ARS, P.O. Box 5367, Mississippi State, MS 39762, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1327 EP - 1332 VL - 20 IS - 5 SN - 0046-225X, 0046-225X KW - Anthonomus grandis grandis KW - models KW - Ecology Abstracts; Entomology Abstracts KW - monitoring KW - Coleoptera KW - Curculionidae KW - dispersal KW - Z 05204:Dispersal & migration KW - D 04659:Insects KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16104772?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Stochastic+model+for+studying+boll+weevil+dispersal.&rft.au=McKibben%2C+G+H%3BWillers%2C+J+L%3BSmith%2C+J+W%3BWagner%2C+T+L&rft.aulast=McKibben&rft.aufirst=G&rft.date=1991-01-01&rft.volume=20&rft.issue=5&rft.spage=1327&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Coleoptera; Curculionidae; monitoring; dispersal ER - TY - JOUR T1 - Effect of thermoperiod and photoperiod on the eclosion rhythm of the sunflower moth (Lepidoptera: Pyralidae). AN - 16104679; 2655466 AB - The sunflower moth, Homoeosoma electellum (Hulst), has a distinct eclosion rhythm in either a light-dark constant temperature photoperiod, or in constant darkness, or in constant light with alternating temperatures. Eclosion is arrhythmic in either constant light or constant darkness with constant temperatures. With a 12:12 light-dark, constant-temperature regimen, there is a broad eclosion peak occurring over approximately equals 6 h before lights turn off as well as over the first part of the dark phase. Some individuals eclose during all hours of the day regardless of the regimen. With a regimen of 12 h each at 26 degree and 17 degree C. (both in constant light or darkness or light-dark with the low temperature during the dark), a bimodal periodicity of eclosion is initiated with a high peak immediately preceding the temperature drop and a low peak shortly after the temperature rise. The rhythm damps out rather quickly in constant darkness at constant temperatures. JF - Environmental Entomology AU - Riemann, J G AD - Insect Biochem. Sect., Biosci. Res. Lab., USDA-ARS, Box 5674, State Univ. Stn., Fargo, ND 58105, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1322 EP - 1326 VL - 20 IS - 5 SN - 0046-225X, 0046-225X KW - Homoeosoma electellum KW - temperature KW - Ecology Abstracts; Entomology Abstracts KW - rhythms KW - Pyralidae KW - eclosion KW - photoperiods KW - Lepidoptera KW - D 04659:Insects KW - Z 05168:Rhythms KW - Z 05178:Environmental effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16104679?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Effect+of+thermoperiod+and+photoperiod+on+the+eclosion+rhythm+of+the+sunflower+moth+%28Lepidoptera%3A+Pyralidae%29.&rft.au=Riemann%2C+J+G&rft.aulast=Riemann&rft.aufirst=J&rft.date=1991-01-01&rft.volume=20&rft.issue=5&rft.spage=1322&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pyralidae; Lepidoptera; photoperiods; eclosion; rhythms ER - TY - JOUR T1 - White spruce artificial regeneration options on river floodplains in interior Alaska. AN - 16102929; 2646519 AB - Reforestation options for artificial regeneration of white spruce (Picea glauca (Moench) Voss) were tested on three flood plain sites near Fairbanks, Alaska. Survival of containerized seedlings after outplanting was above 96%, regardless of harvest cutting method or mechanical site preparation, and declined little between the third and fifth growing seasons. Establishment and survival after direct seeding on seed spots was more variable and differed by harvest cutting method, by type of site preparation, and by the use of plastic seed shelters for seedling protection. Maximum terminal leader growth, seedling total height, and basal diameter were found on planted seedlings in clear-cut units on the better site. In clear-cut units prepared by blading on one site, basal diameter of seedlings five seasons after outplanting was almost 50% more than on similar surfaces in shelterwood units. Planted seedlings on unscarified surfaces and in small scalped patches generally had similar basal diameters. JF - CAN. J. FOR. RES./J. CAN. RECH. FOR. AU - Youngblood, A P AU - Zasada, J C AD - USDA Forest Serv., Pacific Northwest Res. Stn., Inst. North. For., Fairbanks, AK 99775-5500, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 423 EP - 433 VL - 21 IS - 4 KW - reforestation KW - Ecology Abstracts KW - USA, Alaska KW - survival KW - flood plains KW - Picea glauca KW - seedlings KW - D 04635:Conifers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16102929?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.atitle=White+spruce+artificial+regeneration+options+on+river+floodplains+in+interior+Alaska.&rft.au=Youngblood%2C+A+P%3BZasada%2C+J+C&rft.aulast=Youngblood&rft.aufirst=A&rft.date=1991-01-01&rft.volume=21&rft.issue=4&rft.spage=423&rft.isbn=&rft.btitle=&rft.title=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Picea glauca; USA, Alaska; flood plains; survival; seedlings ER - TY - JOUR T1 - Chemistry vis-a-vis maternalism in lace bugs (Heteroptera: Tingidae): Alarm pheromones and exudate defense in Corythucha and Gargaphia species. AN - 16101497; 2658399 AB - The hawthorn lace bug, Corythucha cydoniae , and the eggplant lace bug, Gargaphia solani , possess alarm pheromones that are produced in dorsal abdominal glands (DAGs). When G. solani nymphs are grasped, they emit secretion from both DAGs; the posterior DAG secretion alone elicits alarm, but the anterior DAG secretion may hasten the response. In C. cydoniae , the response is due to a synergism between the anterior and posterior DAG secretions, and nymphs are apparently unable to voluntarily release their DAG secretions; both DAGs must be ruptured for the pheromone to escape. The alarm pheromones are interspecifically active in patterns matching the intraspecific activities. Compounds identified from tingid DAG secretions that are involved in the alarm messages are: (E)-2-hexenal, (E)-4-oxo-2-hexenal, acetaldehyde, geraniol, and linalool. A new natural product of unknown function (designated nerolidol aldehyde) was identified from the anterior DAG secretions of both species. JF - Journal of Chemical Ecology AU - Aldrich, J R AU - Neal, JW Jr AU - Oliver, JE AU - Lusby, W R AD - Insect Chem. Ecol. Lab., USDA-ARS, Build. 467, Beltsville, MD 20705, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 2307 EP - 2322 VL - 17 IS - 11 SN - 0098-0331, 0098-0331 KW - alarm pheromone KW - Heteroptera KW - Chemoreception Abstracts; Entomology Abstracts; Ecology Abstracts; Animal Behavior Abstracts KW - maternal behavior KW - Tingidae KW - defensive behavior KW - Gargaphia KW - Corythucha KW - Z 05193:Orientation KW - D 04659:Insects KW - Y 25363:Insects KW - R 18054:Others KW - Z 05175:Pheromones, repellents & attractants KW - Y 25653:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16101497?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Chemistry+vis-a-vis+maternalism+in+lace+bugs+%28Heteroptera%3A+Tingidae%29%3A+Alarm+pheromones+and+exudate+defense+in+Corythucha+and+Gargaphia+species.&rft.au=Aldrich%2C+J+R%3BNeal%2C+JW+Jr%3BOliver%2C+JE%3BLusby%2C+W+R&rft.aulast=Aldrich&rft.aufirst=J&rft.date=1991-01-01&rft.volume=17&rft.issue=11&rft.spage=2307&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Corythucha; Gargaphia; Tingidae; maternal behavior; defensive behavior ER - TY - JOUR T1 - Water potential in ponderosa pine stands of different growing-stock levels. AN - 16100581; 2646583 AB - Water potential was measured in five ponderosa pine (Pinus ponderosa Laws.) in each of four stands of different growing-stock levels at two locations in the Black Hills of South Dakota. Mean water potentials at dawn and midday varied significantly among growing-stock levels at one location, but differences were not consistent. Mean dawn and midday water potentials within growing-stock levels significantly decreased during the summer but showed minor increases during the overall decline. Stress levels were considered high enough to influence physiological functioning and, therefore, influence susceptibility to mountain pine beetle (Dendroctonus ponderosae Hopk.) attack. Mountain pine beetle infestations did not develop within the stressed stands, which suggests that resistance may be only one factor in the outbreak scenario. JF - CAN. J. FOR. RES./J. CAN. RECH. FOR. AU - Schmid, J M AU - Mata, SA AU - Watkins, R K AU - Kaufmann, M R AD - USDA Forest Serv., Rocky Mt. Forest and Range Exp. Stn., 240 W. Prospect, Fort Collins, CO 80526-2098, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 750 EP - 755 VL - 21 IS - 6 KW - water potential KW - pest resistance KW - Entomology Abstracts; Ecology Abstracts KW - USA, South Dakota KW - Scolytidae KW - population density KW - Coleoptera KW - Pinus ponderosa KW - ecophysiology KW - Dendroctonus ponderosae KW - D 04635:Conifers KW - Z 05203:Relations to plants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16100581?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.atitle=Water+potential+in+ponderosa+pine+stands+of+different+growing-stock+levels.&rft.au=Schmid%2C+J+M%3BMata%2C+SA%3BWatkins%2C+R+K%3BKaufmann%2C+M+R&rft.aulast=Schmid&rft.aufirst=J&rft.date=1991-01-01&rft.volume=21&rft.issue=6&rft.spage=750&rft.isbn=&rft.btitle=&rft.title=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinus ponderosa; Dendroctonus ponderosae; Coleoptera; Scolytidae; USA, South Dakota; ecophysiology; population density ER - TY - JOUR T1 - Impact of minor reductions in adult and larval survival, fecundity and hatch on the population dynamics of Psorophora columbiae : A simulation study. AN - 16100429; 2658682 AB - Laboratory work has shown that mosquitoes obtaining blood meals from animals treated with ivermectin exhibit lowered adult survival, fecundity, egg hatch and larval survival. Computer simulation evaluated the consequences of this phenomenon in field populations of Psorophora columbiae feeding on cattle in the rice agroecosystem. Results suggest that rather minor reductions, on the order of 10% below normal, in these life history parameters would significantly affect the population dynamics of this species in this particular system. Significant reductions in the amount of insecticide used for mosquito abatement are also projected. JF - Journal of the American Mosquito Control Association AU - Focks, DA AD - Med. and Vet. Entomol. Res. Lab., ARS, USDA, Gainesville, FL 32604, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 476 EP - 480 VL - 7 IS - 3 SN - 8756-971X, 8756-971X KW - aquatic insects KW - biological vectors KW - human disease KW - ivermectin KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Entomology Abstracts KW - hatching KW - Culicidae KW - Freshwater KW - fecundity KW - pest control KW - Psorophora columbiae KW - survival KW - Diptera KW - population dynamics KW - Z 05206:Medical & veterinary entomology KW - Q1 08442:Population dynamics KW - Q1 08485:Species interactions: pests and control KW - Q5 08524:Public health, medicines, dangerous organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16100429?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Mosquito+Control+Association&rft.atitle=Impact+of+minor+reductions+in+adult+and+larval+survival%2C+fecundity+and+hatch+on+the+population+dynamics+of+Psorophora+columbiae+%3A+A+simulation+study.&rft.au=Focks%2C+DA&rft.aulast=Focks&rft.aufirst=DA&rft.date=1991-01-01&rft.volume=7&rft.issue=3&rft.spage=476&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Mosquito+Control+Association&rft.issn=8756971X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - fecundity; biological vectors; pest control; hatching; survival; aquatic insects; population dynamics; Psorophora columbiae; Culicidae; Diptera; Freshwater ER - TY - JOUR T1 - Biological control potential of a Japanese plant bug Stethoconus japonicus (Heteroptera: Miridae), an adventive predator of the azalea lace bug (Heteroptera: Tingidae). AN - 16100134; 2660480 AB - Stethoconus japonicus Schumacher, a Japanese plant bug, is the first host-specific lace bug predator established in the Western Hemisphere. In studies with immigrant and native species of lace bugs, S. japonicus showed the highest biological control potential for species of Stephanitis lace bugs. The developmental rate of immature stages at 26.1 degree C was similar to that of its preferred host, the azalea lace bug, Stephanitis pyrioides (Scott). At 26.1 degree C, females generally lived 20-30 d and laid an average of 236 eggs. Instars developed at the same rate on fifth instars of two of three Stephanitis and one Corythucha lace bug species and, when reared on S. pyrioides , males consumed 17.0 nymphs and females consumed 18.7 nymphs. JF - Annals of the Entomological Society of America AU - Neal, JW Jr AU - Haldemann, R H AU - Henry, T J AD - Plant Sci. Inst., Beltsville Agric. Res. Cent., USDA-ARS, Beltsville, MD 20705, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 287 EP - 293 VL - 84 IS - 3 SN - 0013-8746, 0013-8746 KW - Stethoconus japonicus KW - Heteroptera KW - Miridae KW - Stephanitis pyrioides KW - Tingidae KW - biological control KW - host specificity KW - life cycle KW - predator-prey interactions KW - Biotechnology and Bioengineering Abstracts; Entomology Abstracts KW - W 30513:Pest control KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16100134?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annals+of+the+Entomological+Society+of+America&rft.atitle=Biological+control+potential+of+a+Japanese+plant+bug+Stethoconus+japonicus+%28Heteroptera%3A+Miridae%29%2C+an+adventive+predator+of+the+azalea+lace+bug+%28Heteroptera%3A+Tingidae%29.&rft.au=Neal%2C+JW+Jr%3BHaldemann%2C+R+H%3BHenry%2C+T+J&rft.aulast=Neal&rft.aufirst=JW&rft.date=1991-01-01&rft.volume=84&rft.issue=3&rft.spage=287&rft.isbn=&rft.btitle=&rft.title=Annals+of+the+Entomological+Society+of+America&rft.issn=00138746&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Miridae; Stephanitis pyrioides; Tingidae; predator-prey interactions; host specificity; biological control; life cycle ER - TY - JOUR T1 - Effect of ripeness and location of papaya fruits on the parasitization rates of Oriental fruit fly and melon fly (Diptera: Tephritidae) by braconid (Hymenoptera) parasitoids. AN - 16100100; 2660438 AB - Parasitization rates of eggs of oriental fruit fly, Dacus dorsalis Hendel, by Biosteres arisanus (Sonan), and larvae of melon fly, Dacus cucurbitae Coquillett, by Psytallia fletcheri (Silvestri) in mature green to fully ripe papaya fruits on trees and in fully ripe fruits on the ground was studied. Parasitization of oriental fruit fly eggs by B. arisanus was greater in fully ripe fruits than in one-quarter to half-ripe fruits on trees; B. arisanus never parasitized oriental fruit fly eggs in mature green to color-break fruits. No difference was observed in the density of emergent B. arisanus adults from oriental fruit fly pupae recovered from fully ripe fruits on trees and on the ground. Parasitization of melon fly larvae by P. fletcheri was observed in only one fully ripe, fallen fruit. Results in relation to the effect of host plants on the foraging behavior of adult parasitoids and to the biological control of oriental fruit fly and melon fly in an agricultural ecosystem were discussed. JF - Environmental Entomology AU - Liquido, N J AD - Trop. Fruit and Veg. Res. Lab., USDA-ARS, Biol. and Control Res. Unit, P.O. Box 4459, Hilo, HI 96720, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1732 EP - 1736 VL - 20 IS - 6 SN - 0046-225X, 0046-225X KW - Dacus KW - Biosteres arisanus KW - Psytallia fletcheri KW - Braconidae KW - Carica papaya KW - Diptera KW - Hymenoptera KW - Tephritidae KW - biological control KW - parasitism KW - Biotechnology and Bioengineering Abstracts; Ecology Abstracts; Entomology Abstracts KW - USA, Hawaii KW - D 04659:Insects KW - Z 05201:Parasitism: entomophagous KW - W 30513:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16100100?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Effect+of+ripeness+and+location+of+papaya+fruits+on+the+parasitization+rates+of+Oriental+fruit+fly+and+melon+fly+%28Diptera%3A+Tephritidae%29+by+braconid+%28Hymenoptera%29+parasitoids.&rft.au=Liquido%2C+N+J&rft.aulast=Liquido&rft.aufirst=N&rft.date=1991-01-01&rft.volume=20&rft.issue=6&rft.spage=1732&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Carica papaya; Tephritidae; Diptera; Hymenoptera; Braconidae; USA, Hawaii; parasitism; biological control ER - TY - JOUR T1 - Factors influencing involvement of a forester in managing non-industrial forests. AN - 16100097; 2646623 AB - Although improved forest management can increase both timber and non-timber benefits, many landowners do not seek forestry assistance. An empirical model is used to analyse relationships between selected forest and owner characteristics and the propensity to seek professional forestry advice. Strong positive correlations were found between an owner's education level, parcel size and in-state residence, and the propensity to seek professional forestry assistance. JF - Journal of Environmental Management AU - Dennis, D F AU - Sendak, P E AD - Northeast. Forest Exp. Stn., For. Sci. Lab., USDA Forest Serv., Burlington, VT 05402, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 169 EP - 173 VL - 33 IS - 2 SN - 0301-4797, 0301-4797 KW - forest management KW - Ecology Abstracts KW - environmental impact KW - human impact KW - socio-economic aspects KW - D 04700:Management KW - D 04120:Woodlands KW - D 04692:Environmental perception UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16100097?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Management&rft.atitle=Factors+influencing+involvement+of+a+forester+in+managing+non-industrial+forests.&rft.au=Dennis%2C+D+F%3BSendak%2C+P+E&rft.aulast=Dennis&rft.aufirst=D&rft.date=1991-01-01&rft.volume=33&rft.issue=2&rft.spage=169&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Management&rft.issn=03014797&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - human impact; environmental impact; socio-economic aspects ER - TY - JOUR T1 - Winter foraging guild structure and habitat associations in suburban bird communities. AN - 16099537; 2653450 AB - Winter bird communities were compared in three suburbs over 5 years: MT, a 70-year-old area of large houses and planted mature trees, primarily oaks (Quercus ) and elms (Ulmus ); YT, a 15-year-old area also built upon former open agricultural land with young planted trees, primarily maples (Acer ): OP, a 15-year-old area in which houses were build within a second-growth oak-pine (Quercus-Pinus ) woodland. Winter bird surveys were conducted each year for 5 years (1976-1980) during January. The total number of species across suburban types was 32; total abundance was higher in MT and YT than in OP. Species richness was similar in each suburban type. Seedeaters and omnivorous ground-foragers dominated the avifaunas of MT and YT, comprising 86% and 92% of their respective avifaunal abundances. Insectivores comprised 14% of the avifauna in OP, but less than 4% and 1%, respectively, in MT and YT. All significant correlations (r) between ground foragers and measures of tree cover were negative; positive relationships existed between lawn area and distance to the nearest forest fragment. JF - Landscape and Urban Planning AU - DeGraaf, R M AD - USDA Forest Serv., Northeast. Forest Exp. Stn., Univ. Massachusetts, Amherst, MA 01003, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 173 EP - 180 VL - 21 IS - 3 SN - 0169-2046, 0169-2046 KW - foraging behavior KW - Ecology Abstracts; Animal Behavior Abstracts KW - guilds KW - Aves KW - habitat KW - winter KW - suburban environments KW - D 04671:Birds KW - Y 25496:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16099537?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Landscape+and+Urban+Planning&rft.atitle=Winter+foraging+guild+structure+and+habitat+associations+in+suburban+bird+communities.&rft.au=DeGraaf%2C+R+M&rft.aulast=DeGraaf&rft.aufirst=R&rft.date=1991-01-01&rft.volume=21&rft.issue=3&rft.spage=173&rft.isbn=&rft.btitle=&rft.title=Landscape+and+Urban+Planning&rft.issn=01692046&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; habitat; guilds; suburban environments; winter ER - TY - JOUR T1 - Reconstruction of mixed hemlock-spruce stands in coastal southeast Alaska. AN - 16098176; 2646694 AB - Stands of western hemlock (Tsuga heterophylla (Raf.) Sarg.) and Sitka spruce (Picea sitchensis (Bong.) Carr.) on low-elevation, upland sites in coastal southeast Alaska develop as single-generation stands after stand-replacing disturbances and as multiple-generation stands after minor disturbances. Both stand types were studied. Spruce grew rapidly after major and minor windthrow events and reached the mid to upper canopy of the stand. Hemlock showed variable growth patterns and occupied both upper and lower canopy positions. Unlike forested regions containing more tree species, the species compositions and stand structures were similar among both the single- and multiple-generation stands. Hemlock and spruce occupied unique yet similar canopy and stand structural positions in both single- and multiple-generation stands because they had distinctly different regeneration and development patterns. Regardless of the frequency or intensity of the disturbance, spruce usually regenerated on mineral or mixed-soil microsites created by wind-throw events, and hemlock usually regenerated on organic substrates. JF - CAN. J. FOR. RES./J. CAN. RECH. FOR. AU - Deal, R L AU - Oliver, C D AU - Bormann, B T AD - USDA Forest Serv., For. Sci. Lab., Juneau, AK 99802, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 643 EP - 654 VL - 21 IS - 5 KW - reforestation KW - Ecology Abstracts KW - USA, Alaska KW - Picea sitchensis KW - Tsuga heterophylla KW - windthrow KW - growth KW - D 04140:Taiga/tundra UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16098176?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.atitle=Reconstruction+of+mixed+hemlock-spruce+stands+in+coastal+southeast+Alaska.&rft.au=Deal%2C+R+L%3BOliver%2C+C+D%3BBormann%2C+B+T&rft.aulast=Deal&rft.aufirst=R&rft.date=1991-01-01&rft.volume=21&rft.issue=5&rft.spage=643&rft.isbn=&rft.btitle=&rft.title=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Tsuga heterophylla; Picea sitchensis; USA, Alaska; growth; windthrow ER - TY - JOUR T1 - Natural selection for ozone tolerance in Populus tremuloides : An evaluation of nationwide trends. AN - 16096776; 2652003 AB - Relative ozone sensitivity was evaluated among populations of Populus tremuloides Michx. from 15 locations, mostly in national parks, that spanned the United States. Seven to 15 clones were selected from each population, greenhouse grown, fumigated with 150 ppb ozone for 6 h, and evaluated for visible injury. Differences among populations were statistically significant, with the most tolerant populations being obtained from the West Coast, the northeast, and the industrialized portions of the Great Lakes. Populations sampled from areas that failed to achieve the National Ambient Air Quality Standard for ozone had significantly less injury than populations from areas that achieved this standard. There was a significant negative correlation between the amount of injury and maximum daily ozone averages at localities where the populations were collected. There were also significant correlations between the amount of injury and two climatic variables, annual precipitation and minimum temperature. JF - CAN. J. FOR. RES./J. CAN. RECH. FOR. AU - Berrang, P AU - Karnosky, D F AU - Bennett, J P AD - USDA Forest Serv., Cent. Forest Environ. Stud., Dry Branch, GA 31020, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1091 EP - 1097 VL - 21 IS - 7 KW - natural selection KW - tolerance KW - United States KW - ozone KW - Health & Safety Science Abstracts; Ecology Abstracts KW - USA KW - Populus tremuloides KW - H SE1.20:FORESTRY KW - D 04640:Other angiosperms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16096776?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.atitle=Natural+selection+for+ozone+tolerance+in+Populus+tremuloides+%3A+An+evaluation+of+nationwide+trends.&rft.au=Berrang%2C+P%3BKarnosky%2C+D+F%3BBennett%2C+J+P&rft.aulast=Berrang&rft.aufirst=P&rft.date=1991-01-01&rft.volume=21&rft.issue=7&rft.spage=1091&rft.isbn=&rft.btitle=&rft.title=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Populus tremuloides; USA; ozone ER - TY - JOUR T1 - Ontogeny and adaptiveness of tail-flagging behavior in white-tailed deer. AN - 16096132; 2652534 AB - I observed white-tailed deer use two tactics to avoid predation: freeze behavior to avoid detection, and flight, during which deer frequently flagged their tails. Remaining motionless increased in use with increasing vegetative cover and occurred less often among larger groups. Tail flagging was observed in all age and sex groups, even neonates within hours after birth. The tendency to tail flag was greatest among fawns. As fawns became older, tail flagging decreased so that by 7 mo of age they tail flagged at a rate similar to that of yearlings and adults. If deer fled while in cover, their tendency to tail flag increased with amount of vegetative cover. Tail flagging appears to be an innate, conspecific signal that reduces predation through group cohesion. I suggest that the behavior evolved as part of continued and intense doe-fawn interactions. JF - American Naturalist AU - Smith, W P AD - USDA Forest Serv., South. Forest Exp. Stn., South. Hardwoods Lab., Stoneville, MS 38776, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 190 EP - 200 VL - 138 IS - 1 SN - 0003-0147, 0003-0147 KW - anti-predator behavior KW - tail-flagging KW - social behaviour KW - Animal Behavior Abstracts; Ecology Abstracts KW - Odocoileus virginianus KW - ontogeny KW - Y 25557:Mammals (excluding primates) KW - D 04672:Mammals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16096132?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Naturalist&rft.atitle=Ontogeny+and+adaptiveness+of+tail-flagging+behavior+in+white-tailed+deer.&rft.au=Smith%2C+W+P&rft.aulast=Smith&rft.aufirst=W&rft.date=1991-01-01&rft.volume=138&rft.issue=1&rft.spage=190&rft.isbn=&rft.btitle=&rft.title=American+Naturalist&rft.issn=00030147&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Odocoileus virginianus; ontogeny ER - TY - JOUR T1 - Responses of pocket gophers (Thomomys bottae ) to changes in diet quality. AN - 16095971; 2652883 AB - We examined digestibility of dry matter, nutrients, and fiber, and food intake, metabolic fecal losses, weight change, and gut size of pocket gophers (Thomomys bottae ) in relation to diet quality in the laboratory. Pocket gophers were maintained for 15-20 days on one of seven diets which contained from 18% to 56% neutral detergent fiber (NDF). NDF content of the diet was an excellent predictor of diet quality. Digestibility of dry matter, NDF, and nitrogen all decreased with increasing NDF content of the diet. In general, pocket gophers compensated for low diet quality by increasing dry matter intake, but those given high quality forage before the lowest quality diet reduced their intake. Thus, the response of pocket gophers to low quality diets may depend on their body condition. Because increased food intake resulted in increases of total metabolic fecal losses and metabolic fecal nitrogen losses, decreasing food intake on low-quality diets may be advantageous. JF - Oecologia AU - Loeb, S C AU - Schwab, R G AU - Demment, M W AD - USDA Forest Serv., Southeast. Forest Exp. Stn., Dep. Forest Resour., Clemson Univ., Clemson, SC 29634-1003, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 542 EP - 551 VL - 86 IS - 4 SN - 0029-8549, 0029-8549 KW - food quality KW - Ecology Abstracts KW - ecophysiology KW - Thomomys bottae KW - D 04672:Mammals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16095971?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Oecologia&rft.atitle=Responses+of+pocket+gophers+%28Thomomys+bottae+%29+to+changes+in+diet+quality.&rft.au=Loeb%2C+S+C%3BSchwab%2C+R+G%3BDemment%2C+M+W&rft.aulast=Loeb&rft.aufirst=S&rft.date=1991-01-01&rft.volume=86&rft.issue=4&rft.spage=542&rft.isbn=&rft.btitle=&rft.title=Oecologia&rft.issn=00298549&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Thomomys bottae; ecophysiology ER - TY - JOUR T1 - Seed entrapment in alpine ecosystems: Effects of soil particle size and diaspore morphology. AN - 16094155; 2653006 AB - We examined how diaspore morphology and soil particle size affect diaspore incorporation into soil in a disturbed alpine ecosystem on the Beartooth Plateau, Montana, USA. Regardless of diaspore morphology, the total number of diaspores trapped increased with increasing particle size until a threshold soil particle size was reached above which no more diaspores were trapped. At small particle sizes (0.5-1.0 and 1.0-2.0 mm) small diaspores and diaspores with adhesive seed coats were trapped, but most large diaspores moved horizontally across the surface and were not trapped. The majority of those diaspores trapped were at the 0-1 cm depth at small particles sizes. At large particle sizes (2.0-4.0, 4.0-8.0, and 8.0-16.0 mm) high numbers of large diaspores were trapped, and more diaspores moved vertically through the soil column. JF - Ecology AU - Chambers, J C AD - Intermt. Res. Stn., USDA Forest Serv., 860 N. 1200 E., Logan, UT 84321, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1668 EP - 1677 VL - 72 IS - 5 SN - 0012-9658, 0012-9658 KW - spatial distribution KW - USA, Montana, Beartooth Plateau KW - Ecology Abstracts KW - morphology KW - seed banks KW - soil depth KW - alpine environments KW - soil characteristics KW - D 04600:Soil UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16094155?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecology&rft.atitle=Seed+entrapment+in+alpine+ecosystems%3A+Effects+of+soil+particle+size+and+diaspore+morphology.&rft.au=Chambers%2C+J+C&rft.aulast=Chambers&rft.aufirst=J&rft.date=1991-01-01&rft.volume=72&rft.issue=5&rft.spage=1668&rft.isbn=&rft.btitle=&rft.title=Ecology&rft.issn=00129658&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - seed banks; morphology; soil characteristics; soil depth; alpine environments ER - TY - JOUR T1 - Life history of Ceratitis capitata (Diptera: Tephritidae) reared from mock orange in Hawaii. AN - 16093837; 2655741 AB - The Mediterranean fruit fly, Ceratitis capitata (Wiedemann), was reared at three larval densities in ripe mock orange, Murraya paniculata (L.), obtained from five locations in the field. Larvae and preadult survival decreased with increase in larval density. C. capitata field infestation rates varied between locations from 0.5 to 148.4 larvae/kg of fruit. More Dacus dorsalis Hendel were reared from field collected fruits than C. capitata . The weight of mock orange fruit varied between locations from 0.31 to 4.0 g/fruit. Survival and reproduction parameters are discussed in relation to availability of fruit in the field. We conclude that the availability of ripe mock orange fruit in the field ultimately influences the number of fruit flies that survive to the next generation. JF - Environmental Entomology AU - Harris, E J AU - Carey, J R AU - Krainacker, DA AU - Lee, CYL AD - Trop. Fruit and Veg. Res. Lab., USDA-ARS, Honolulu, HI 96804, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1048 EP - 1052 VL - 20 IS - 4 SN - 0046-225X, 0046-225X KW - Ceratitis capitata KW - Ecology Abstracts; Entomology Abstracts KW - population density KW - development KW - USA, Hawaii KW - life history KW - Tephritidae KW - Murraya paniculata KW - Diptera KW - Z 05197:Habits & life histories KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16093837?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Life+history+of+Ceratitis+capitata+%28Diptera%3A+Tephritidae%29+reared+from+mock+orange+in+Hawaii.&rft.au=Harris%2C+E+J%3BCarey%2C+J+R%3BKrainacker%2C+DA%3BLee%2C+CYL&rft.aulast=Harris&rft.aufirst=E&rft.date=1991-01-01&rft.volume=20&rft.issue=4&rft.spage=1048&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Murraya paniculata; Diptera; Tephritidae; USA, Hawaii; life history; development; population density ER - TY - JOUR T1 - Adverse effects on fall armyworm feeding on fungus-free leaves of fungus-infected plants. AN - 16093099; 2652812 AB - The objective of this study was to determine the effect of an epiphytic member of the Balansieae, Balansia cyperi Edg., infecting the sedge, Cyperus rotundus L. (purple nutsedge), on behaviour and development of fall armyworm (Spodoptera frugiperda J.E. Smith (Lepidoptera: Noctuidae)). JF - Ecological Entomology AU - Stovall, ME AU - Clay, K AD - South. Reg. Res. Cent., Agric. Res. Serv., USDA, 1100 Robert E. Lee Blvd., New Orleans, LA 70179, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 519 EP - 523 VL - 16 IS - 4 SN - 0307-6946, 0307-6946 KW - feeding behaviour KW - development KW - Balansia cyperi KW - Entomology Abstracts; Ecology Abstracts; Animal Behavior Abstracts KW - Spodoptera frugiperda KW - host plants KW - leaves KW - Lepidoptera KW - fungi KW - Cyperus rotundus KW - Noctuidae KW - Z 05203:Relations to plants KW - Y 25493:Insects KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16093099?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Entomology&rft.atitle=Adverse+effects+on+fall+armyworm+feeding+on+fungus-free+leaves+of+fungus-infected+plants.&rft.au=Stovall%2C+ME%3BClay%2C+K&rft.aulast=Stovall&rft.aufirst=ME&rft.date=1991-01-01&rft.volume=16&rft.issue=4&rft.spage=519&rft.isbn=&rft.btitle=&rft.title=Ecological+Entomology&rft.issn=03076946&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Cyperus rotundus; Spodoptera frugiperda; Lepidoptera; Noctuidae; host plants; leaves; fungi ER - TY - JOUR T1 - Production of a new compound, 7,10-dihydroxy-8-(E)-octadecenoic acid from oleic acid by Pseudomonas sp. PR3. AN - 16091467; 2653095 AB - Sixty-two cultures from the ARS Culture Collection and 10 cultures isolated from soil and water samples collected in Illinois were screened for their ability to convert agricultural oils to value-added industrial chemicals. A new compound, 7,10-dihydroxy-8-(E)-octadecenoic acid (DOD) was produced from oleic acid by a new strain, Pseudomonas sp. PR3 isolated from a water sample in Morton, IL. Strain PR3 is a motile, small rod-shaped, Gram-negative bacterium. It has multiple polar flagellae and is oxidase-positive. Strain PR3 grows aerobically and cannot grow anaerobically. The strain produces white, smooth colonies on agar plate and no water-soluble pigment. The yield of the product was greater than 60%. The optimum time, pH and temperature for the production of DOD were: 2 days, 7.0, and 30 degree C, respectively. Glycerol and dextrose support the growth of strain PR3, but the cells grown from the former failed to catalyse the conversion of oleic acid to DOD. The production of DOD is unique in that it involves a hydroxylation at two positions and a rearrangement of the double bond of the substrate molecule. JF - Journal of Industrial Microbiology and Biotechnology AU - Hou, C T AU - Bagby, MO AD - Oil Chem. Res., North. Reg. Res. Cent., ARS-USDA, 1815 N. University St., Peoria, IL 61604, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 123 EP - 130 VL - 7 IS - 2 SN - 0169-4146, 0169-4146 KW - Pseudomonas KW - conversion KW - production KW - effects on KW - oleic acid KW - 7,10-dihydroxy-8-(E)-octadecenoic acid KW - temperature KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - pH KW - J 02731:Lipids KW - A 01002:Acids, amino acids, peptides & proteins UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16091467?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Industrial+Microbiology+and+Biotechnology&rft.atitle=Production+of+a+new+compound%2C+7%2C10-dihydroxy-8-%28E%29-octadecenoic+acid+from+oleic+acid+by+Pseudomonas+sp.+PR3.&rft.au=Hou%2C+C+T%3BBagby%2C+MO&rft.aulast=Hou&rft.aufirst=C&rft.date=1991-01-01&rft.volume=7&rft.issue=2&rft.spage=123&rft.isbn=&rft.btitle=&rft.title=Journal+of+Industrial+Microbiology+and+Biotechnology&rft.issn=01694146&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - pH ER - TY - JOUR T1 - Responses of red spruce seedlings to ozone and acid deposition. AN - 16090620; 2651949 AB - Red spruce (Picea rubens Sarg.) seedlings were treated with ozone and simulated acid precipitation to determine the effects of these pollutants on growth, nonstructural carbohydrates, and foliar mineral content. One-year-old seedlings were fumigated with ozone (at 0.15 mu L/L for 6 h/d or at 0.15 mu L/L for 6 h/d plus 0.07 mu L/L for 18 h/d) and treated with simulated precipitation (pH 3.5, 4.0, or 4.5) for up to 28 weeks. Seedlings were harvested at 7-week intervals. Ozone had no effect on growth, and precipitation acidity affected only terminal length. Carbohydrate pools were altered little by the ozone and precipitation treatments. Of eight minerals tested, only Ca was affected by precipitation acidity and only P and Cu were affected by ozone. The results of this experiment show that red spruce seedlings that receive ample supplies of water and nutrients are tolerant to ozone and changes in precipitation acidity. JF - CAN. J. FOR. RES./J. CAN. RECH. FOR. AU - Patton, R L AU - Jensen, K F AU - Schier, G A AD - USDA Forest Serv. Northeast. Forest Exp. Stn., 359 Main Rd., Delaware, OH 43015, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1354 EP - 1359 VL - 21 IS - 12 KW - ozone KW - Health & Safety Science Abstracts; Pollution Abstracts; Ecology Abstracts KW - acid deposition KW - Picea rubens KW - carbohydrates KW - minerals KW - growth KW - H SE3.20:AIR POLLUTION/AIR QUALITY KW - H SE1.20:FORESTRY KW - D 04635:Conifers KW - P 0000:AIR POLLUTION KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16090620?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.atitle=Responses+of+red+spruce+seedlings+to+ozone+and+acid+deposition.&rft.au=Patton%2C+R+L%3BJensen%2C+K+F%3BSchier%2C+G+A&rft.aulast=Patton&rft.aufirst=R&rft.date=1991-01-01&rft.volume=21&rft.issue=12&rft.spage=1354&rft.isbn=&rft.btitle=&rft.title=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Picea rubens; acid deposition; growth; carbohydrates; minerals ER - TY - JOUR T1 - The parasitoid Ooencyrtus nezarae (Hymenoptera: Encyrtidae) prefers hosts parasitized by conspecifics over unparasitized hosts. AN - 16089015; 2651863 AB - Two laboratory experiments were conducted to examine the ovipositional preferences of the egg parasitoid Ooencyrtus nezarae Ishii (Hymenoptera: Encyrtidae) for parasitized and unparasitized Megacopta punctatissimum Montandon (Hemiptera: Plataspidae). Females that had never oviposited or that had not oviposited for 3 days preferred recently parasitized hosts more than unparasitized hosts. The preference for recently parasitized hosts appeared to be mediated by the punctures in already parasitized hosts made by the ovipositor of the first female. Survival of the parasitoid progeny was lower in recently parasitized hosts than in unparasitized hosts. However, handling time of parasitized hosts was extremely short relative to that of unparasitized hosts, because the superparasitizing female could use the punctures made by the previous females. JF - Oecologia AU - Takasu, K AU - Hirose, Y AD - Insect Biol. and Popul. Manage. Res. Lab., USDA-ARS, Tifton, GA 31793, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 319 EP - 323 VL - 87 IS - 3 SN - 0029-8549, 0029-8549 KW - conspecifics KW - Ooencyrtus nezarae KW - Megacopta punctatissimum KW - Animal Behavior Abstracts; Entomology Abstracts; Ecology Abstracts KW - Plataspidae KW - Coccoidea KW - Encyrtidae KW - Hymenoptera KW - host preferences KW - parasitism KW - oviposition KW - Homoptera KW - Z 05201:Parasitism: entomophagous KW - D 04659:Insects KW - Y 25423:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16089015?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Oecologia&rft.atitle=The+parasitoid+Ooencyrtus+nezarae+%28Hymenoptera%3A+Encyrtidae%29+prefers+hosts+parasitized+by+conspecifics+over+unparasitized+hosts.&rft.au=Takasu%2C+K%3BHirose%2C+Y&rft.aulast=Takasu&rft.aufirst=K&rft.date=1991-01-01&rft.volume=87&rft.issue=3&rft.spage=319&rft.isbn=&rft.btitle=&rft.title=Oecologia&rft.issn=00298549&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Hymenoptera; Encyrtidae; Homoptera; Plataspidae; Coccoidea; parasitism; host preferences; oviposition ER - TY - JOUR T1 - Bird population and habitat surveys in urban areas. AN - 16089014; 2651929 AB - Breeding bird populations in six habitats in Columbia, MD, were studied to develop procedures suitable for measuring bird use of residential areas and to identify habitat characteristics that define the distribution of various common bird species. A procedure to measure bird use based on 4-min transect counts on plots measuring 91 m x 91 m proved better than point counts. Transect counts reduced many of the problems associated with counting birds in urban areas, such as varying noise and visibility. Eighty percent of observations were recorded in the first 4 min. Habitat measurement procedures were examined also. It was found that a subsample of woody tree and shrub crown volumes made on 0.2 ha was highly correlated with similar measures made on 0.8-ha plots. JF - Landscape and Urban Planning AU - DeGraaf, R M AU - Geis, AD AU - Healy, P A AD - USDA Forest Serv., Northeast. Forest Exp. Stn., Univ. Massachusetts, Amherst, MA 01003, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 181 EP - 188 VL - 21 IS - 3 SN - 0169-2046, 0169-2046 KW - population levels KW - urban environments KW - methodology KW - USA, Maryland, Columbia KW - Maryland, Columbia KW - habitats KW - birds KW - urban areas KW - Health & Safety Science Abstracts; Ecology Abstracts KW - Aves KW - habitat KW - surveys KW - population dynamics KW - H SE1.21:WILDLIFE KW - D 04671:Birds KW - D 04695:Urban environments KW - D 04001:Methodology - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16089014?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Landscape+and+Urban+Planning&rft.atitle=Bird+population+and+habitat+surveys+in+urban+areas.&rft.au=DeGraaf%2C+R+M%3BGeis%2C+AD%3BHealy%2C+P+A&rft.aulast=DeGraaf&rft.aufirst=R&rft.date=1991-01-01&rft.volume=21&rft.issue=3&rft.spage=181&rft.isbn=&rft.btitle=&rft.title=Landscape+and+Urban+Planning&rft.issn=01692046&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; habitat; surveys; birds; urban areas; population dynamics; urban environments; methodology ER - TY - JOUR T1 - Effects of choline deficiency and methotrexate treatment upon liver folate content and distribution. AN - 16087747; 2647139 AB - We examined the effects of feeding rats a choline deficient diet, of treating rats with low doses of methotrexate (MTX, 0.1 mg/kg, daily), and of combined choline deficiency and MTX treatment upon the content and distribution of folates in liver. We used a newly devised technique for analysis of folates which utilized affinity chromatography followed by high pressure liquid chromatography. Compared to control rats, total hepatic folate content decreased by 31% in the choline deficient rats, by 48% in the MTX treated rats, and by 60% in rats which were both choline deficient and treated with MTX. In extracts of livers from control rats, folates were present predominantly as penta (35%) and hexaglutamyl (52%) derivatives. These data are discussed from the standpoint of the current understanding of mechanisms that regulate the elongation of the glutamic acid chains of folates and those that regulate folate dependent synthesis and utilization of one carbon unit. (DBO) JF - Cancer Research AU - Selhub, J AU - Seyoum, E AU - Pomfret, E A AU - Zeisel, SH AD - Bioavailability Lab., USDA Hum. Nutr. Res. Cent. Aging, Tufts Univ., 711 Washington St., Boston, MA 02111, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 16 EP - 21 VL - 51 IS - 1 SN - 0008-5472, 0008-5472 KW - choline KW - content KW - deficiency KW - distribution KW - folic acid KW - liver KW - methotrexate KW - rats KW - treatment KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16087747?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Cancer+Research&rft.atitle=Effects+of+choline+deficiency+and+methotrexate+treatment+upon+liver+folate+content+and+distribution.&rft.au=Selhub%2C+J%3BSeyoum%2C+E%3BPomfret%2C+E+A%3BZeisel%2C+SH&rft.aulast=Selhub&rft.aufirst=J&rft.date=1991-01-01&rft.volume=51&rft.issue=1&rft.spage=16&rft.isbn=&rft.btitle=&rft.title=Cancer+Research&rft.issn=00085472&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Relationships between chemical structure and inhibitory activity of C sub(6) through C sub(9) volatiles emitted by plant residues. AN - 16086172; 2646341 AB - Leaf, stem, flower, fruit, and root residues of a wide variety of plants have been reported to emit bioactive n-alkanes, 2-alkanols, n-alkanals, 2-alkenals, 2-alkanones, and n-alkanoic acids containing from six to nine carbon atoms. During a 72-hr exposure to the vapor phase of these compounds (6.9, 20.8 or 34.4 mu M/liter), germination of onion, carrot, and tomato seeds was inhibited to varying degrees. The extent of inhibition caused by these plant residue volatiles depended upon the compound type and concentration, carbon-chain length, and the seed species tested. Tomato seeds recovered more fully from exposure to these volatile inhibitors than did those of carrot and onion. Degree of recovery in all three species depended on the type and concentration of volatile present. The C sub(7) and C sub(8) compounds were the most inhibitory among these 24 volatiles. Of the six classes of chemicals examined, the 2-alkenals were the most inhibitory, followed by the 2-alkanols, n-alkanals, and 2-alkanones, which were equally effective as seed germination inhibitors. JF - Journal of Chemical Ecology AU - Bradow, J M AD - USDA, ARS, South. Reg. Res. Cent., P.O. Box 19687, New Orleans, LA 70179, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 2193 EP - 2212 VL - 17 IS - 11 SN - 0098-0331, 0098-0331 KW - allelochemicals KW - inhibition KW - chemical composition KW - Ecology Abstracts KW - volatiles KW - seed germination KW - plants KW - D 04625:Plants - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16086172?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Relationships+between+chemical+structure+and+inhibitory+activity+of+C+sub%286%29+through+C+sub%289%29+volatiles+emitted+by+plant+residues.&rft.au=Bradow%2C+J+M&rft.aulast=Bradow&rft.aufirst=J&rft.date=1991-01-01&rft.volume=17&rft.issue=11&rft.spage=2193&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - volatiles; seed germination; plants ER - TY - JOUR T1 - Differential pathogenicity of four Pratylenchus neglectus populations on alfalfa. AN - 16085804; 2646939 AB - A Pratylenchus neglectus population from Utah (UT3) was more virulent to Lahontan alfalfa than other P. neglectus populations from Utah (UT1, UT2) and Wyoming (WY). All alfalfa plants survived at 24 plus or minus 3 C when inoculated with WY, UT1, or UT2 at initial populations (Pi) of 500, 1,000, and 5,000 nematodes per plant. At Pi 10,000 with WY, UT1, or UT2, plant mortality was 15, 15, and 20%, respectively; at Pi 5,000 and 10,000 with UT3, Plant mortality was 10 and 40%. The WY, UT1, and UT2 populations reduced (P less than or equal to 0.05) root growth at Pi 10,000 only, and UT3 reduced (P less than or equal to 0.05) root growth at Pi 1,000, 5,000, and 10,000. At Pi 5,000, shoot dry weights were reduced by 10-23% by WY, 14-29% by UT1, 12-25% by UT2, and 20-48% by UT3 at 15-30 C. The UT3 population reduced (P less than or equal to 0.05) root dry weight at 20-30 C at Pi 1,000 and 5,000. The WY, UT1, and UT2 populations did not reduce (P greater than or equal to 0.05) root growth at any temperature or Pi. The UT3 nematode reproductive indices were greater than those of the other nematode populations at all Pi and increased with temperature. JF - Journal of Nematology AU - Griffin, G D AD - USDA ARS, Forage and Range Res. Lab., Utah State Univ., Logan, UT 84322, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 380 EP - 385 VL - 23 IS - 4 SN - 0022-300X, 0022-300X KW - pathogenicity KW - Ecology Abstracts KW - USA, Utah KW - USA, Wyoming KW - Pratylenchus neglectus KW - population dynamics KW - Medicago sativa KW - D 04656:Nematodes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16085804?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Nematology&rft.atitle=Differential+pathogenicity+of+four+Pratylenchus+neglectus+populations+on+alfalfa.&rft.au=Griffin%2C+G+D&rft.aulast=Griffin&rft.aufirst=G&rft.date=1991-01-01&rft.volume=23&rft.issue=4&rft.spage=380&rft.isbn=&rft.btitle=&rft.title=Journal+of+Nematology&rft.issn=0022300X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pratylenchus neglectus; Medicago sativa; USA, Utah; USA, Wyoming; population dynamics ER - TY - JOUR T1 - Regrowth and nutrient accumulations following whole-tree harvesting of a maple-oak forest. AN - 16085790; 2646238 AB - The rates of biomass and N, P, K, Ca and Mg accumulations were measured in a mixed hardwood-Haplorthod ecosystem following whole-tree harvesting and compared with preharvest conditions. Stand biomass and net primary production averaged 150.7 Mg/ha and 7.3 Mg multiplied by ha super(-1) multiplied by year super(-1), respectively, in the preharvest forest. An estimated 100 Mg/ha of biomass was removed in a commercial whole-tree harvesting operation during the dormant season. Regrowth during the 4 years after harvest was categorized into the following floristic groups: woody plants, woodland herbaceous species that were part of the preharvest forest, early successional species that colonized the site after harvest, and graminoids. Woodland herbaceous and woody species dominated the recovery vegetation and together accounted for more than 70% of the nutrients captured by vegetation throughout the postharvest measurement period. Extensive clonal structures for many woody species and two common woodland herbaceous species, Pteridium aquilinum (L.) Kuhn and Aster macrophyllus L., resulted in their rapid recovery. JF - CAN. J. FOR. RES./J. CAN. RECH. FOR. AU - Crow, T R AU - Mroz, G D AU - Gale, M R AD - USDA For. Serv., North Cent. For. Exp. Stn., Rhinelander, WI 54501, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1305 EP - 1315 VL - 21 IS - 12 KW - regrowth KW - Ecology Abstracts KW - forests KW - nutrient dynamics KW - harvesting KW - Quercus KW - Acer KW - D 04125:Temperate forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16085790?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.atitle=Regrowth+and+nutrient+accumulations+following+whole-tree+harvesting+of+a+maple-oak+forest.&rft.au=Crow%2C+T+R%3BMroz%2C+G+D%3BGale%2C+M+R&rft.aulast=Crow&rft.aufirst=T&rft.date=1991-01-01&rft.volume=21&rft.issue=12&rft.spage=1305&rft.isbn=&rft.btitle=&rft.title=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Acer; Quercus; nutrient dynamics; harvesting; forests ER - TY - JOUR T1 - Forest habitat loss, fragmentation, and red-cockaded woodpecker populations. AN - 16085687; 2646166 AB - Loss of mature forest habitat was measured around Red-cockaded Woodpecker (Picoides borealis ) cavity tree clusters (colonies) in three National Forests in eastern Texas. Forest removal results in a loss of foraging habitat and causes habitat fragmentation of the remaining mature forest. Habitat loss was negatively associated with woodpecker group size in small populations that had relatively isolated clusters but not in a larger, more dense population. Cutting patterns also may affect the amount of foraging habitat available to a family group if the group is forced to go through the territories of other groups to access suitable foraging habitat. Habitat loss may affect woodpecker group size by causing an insufficiency of foraging habitat and dispersal-demographic problems. JF - Wilson Bulletin AU - Conner, R N AU - Rudolph, D C AD - Wildl. Habitat and Silvic. Lab., South. Forest Exp. Stn., USDA Forest Serv., Nacogdoches, TX 75962, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 446 EP - 457 VL - 103 IS - 3 SN - 0043-5643, 0043-5643 KW - habitat fragmentation KW - Ecology Abstracts KW - population levels KW - Picoides borealis KW - USA, Texas KW - deforestation KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16085687?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wilson+Bulletin&rft.atitle=Forest+habitat+loss%2C+fragmentation%2C+and+red-cockaded+woodpecker+populations.&rft.au=Conner%2C+R+N%3BRudolph%2C+D+C&rft.aulast=Conner&rft.aufirst=R&rft.date=1991-01-01&rft.volume=103&rft.issue=3&rft.spage=446&rft.isbn=&rft.btitle=&rft.title=Wilson+Bulletin&rft.issn=00435643&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Picoides borealis; USA, Texas; population levels; deforestation ER - TY - JOUR T1 - Near-normal, empirical, and identity yield tables for estimating stand growth. AN - 16085630; 2646893 AB - Historically, forest growth was estimated using a normal or near-normal yield table as a density standard, and a relative density change equation to estimate approach to the standard. Although normal yield tables have come under intense criticism, critics have generally ignored the relative density change equation. If a yield table captures the "true" relations between volume, age, and site for a species, the relative density change equation can be a simple function of initial relative density and age. If a yield table does not capture the true relations between volume, site, and age, the inadequacy can be overcome by developing more complex relative density change equations, i.e., by transferring representation burden to the change equation. Introduced in the present paper is the concept of an identity yield table (all entries are one), wherein the entire burden of representing the relations between volume, site, and age is transferred from a density standard to a relative density change equation. Modern whole stand (net) growth models are equivalent to historical relative density change equations based on identity yield tables. JF - CAN. J. FOR. RES./J. CAN. RECH. FOR. AU - Leary, R A AD - USDA Forest Serv., North Cent. Forest Exp. Stn., 1992 Folwell Ave., St. Paul, MN 55108, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 353 EP - 362 VL - 21 IS - 3 KW - population growth KW - yield KW - models KW - Ecology Abstracts KW - forests KW - D 04003:Modeling, mathematics, computer applications KW - D 04120:Woodlands UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16085630?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.atitle=Near-normal%2C+empirical%2C+and+identity+yield+tables+for+estimating+stand+growth.&rft.au=Leary%2C+R+A&rft.aulast=Leary&rft.aufirst=R&rft.date=1991-01-01&rft.volume=21&rft.issue=3&rft.spage=353&rft.isbn=&rft.btitle=&rft.title=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - forests ER - TY - JOUR T1 - Cavity tree selection by red-cockaded woodpeckers in relation to tree age. AN - 16085502; 2645730 AB - We aged over 1350 Red-cockaded Woodpecker (Picoides borealis ) cavity trees and a comparable number of randomly selected trees. Resulting data strongly support the hypothesis that Red-cockaded Woodpeckers preferentially select older trees. Ages of recently initiated cavity trees in the Texas study areas generally were similar to those of cavity trees initiated during the last several decades. In effect, the birds are continuing to select the oldest trees from a pool of trees of increasing age. This suggests that the current average age of cavity trees on these site (85-130 yrs) may not provide optimum cavity trees for this endangered species. JF - Wilson Bulletin AU - Rudolph, D C AU - Conner, R N AD - Wildl. Habitat and Silvic. Lab., South. Forest Exp. Stn., USDA Forest Serv., Nacogdoches, TX 75962, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 458 EP - 467 VL - 103 IS - 3 SN - 0043-5643, 0043-5643 KW - habitat selection KW - Ecology Abstracts KW - Picoides borealis KW - age KW - trees KW - USA, Texas KW - cavity nesters KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16085502?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wilson+Bulletin&rft.atitle=Cavity+tree+selection+by+red-cockaded+woodpeckers+in+relation+to+tree+age.&rft.au=Rudolph%2C+D+C%3BConner%2C+R+N&rft.aulast=Rudolph&rft.aufirst=D&rft.date=1991-01-01&rft.volume=103&rft.issue=3&rft.spage=458&rft.isbn=&rft.btitle=&rft.title=Wilson+Bulletin&rft.issn=00435643&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Picoides borealis; USA, Texas; cavity nesters; trees; age ER - TY - JOUR T1 - Estimating components of propagated variance in growth simulation model projections. AN - 16085338; 2646839 AB - First-order Taylor series variance estimation equations were embedded in a growth simulation model to estimate propagated variances during growth and yield projections. Variance equations estimated three error components: covariances propagated through predictor variables, covariances from estimated regressor coefficients, and covariances between regressor coefficients and variables. A separate Monte Carlo process was used to estimate the total variance in projected variables caused by simultaneous perturbations in values of initialization variables and in regressor coefficients. Variances estimated by these two procedures were compared over five consecutive projection periods for six variables in a forest growth simulation model. While results agreed closely for the variance in mean stand diameter, disparities increase for other variables later in the model estimation sequence. JF - CAN. J. FOR. RES./J. CAN. RECH. FOR. AU - Mowrer, H T AD - USDA Forest Serv., Rocky Mt. Forest and Range Exp. Stn., Fort Collins, CO 80526, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 379 EP - 386 VL - 21 IS - 3 KW - growth KW - yield KW - mathematical models KW - Ecology Abstracts KW - D 04625:Plants - general KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16085338?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.atitle=Estimating+components+of+propagated+variance+in+growth+simulation+model+projections.&rft.au=Mowrer%2C+H+T&rft.aulast=Mowrer&rft.aufirst=H&rft.date=1991-01-01&rft.volume=21&rft.issue=3&rft.spage=379&rft.isbn=&rft.btitle=&rft.title=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Retrospective shoot growth analysis for three seed sources of loblolly pine. AN - 16085205; 2646860 AB - Height growth by year and by individual cycle on the terminal shoot was reconstructed from stem analysis for 45 loblolly pine (Pinus taeda L.) trees that were 35 years old. Sample trees represented three seed sources (Clark County, AR; Livingston Parish, LA; and Onslow County, NC), each of which had been planted at three installations (Arkadelphia, AR; Poplarville, MS; and New Bern, NC) located in the general geographic area where one of the seed sources had been collected. Stem analysis was facilitated by the development of a staining technique that enhanced recognition of the boundaries between individual height-growth cycles and between years. Both annual height growth and number of cycles produced varied with tree age, seed source, and installation. Number of cycles produced per year ranged from two to seven; maximum annual production of cycles per seed source was achieved between ages 3 and 10 years. Even between ages 30 and 35, trees still exhibited polycyclic behavior, producing two to five cycles annually. Annual height growth was greatest between ages 4 and 15; height growth declined with age more rapidly than annual number of cycles. JF - CAN. J. FOR. RES./J. CAN. RECH. FOR. AU - Harrington, CA AD - USDA For. Serv., For. Sci. Lab., 3625 93rd Ave. SW, Olympia, WA 98502, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 306 EP - 317 VL - 21 IS - 3 KW - population genetics KW - Ecology Abstracts KW - USA, South KW - Pinus taeda KW - phytogeography KW - growth KW - D 04635:Conifers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16085205?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.atitle=Retrospective+shoot+growth+analysis+for+three+seed+sources+of+loblolly+pine.&rft.au=Harrington%2C+CA&rft.aulast=Harrington&rft.aufirst=CA&rft.date=1991-01-01&rft.volume=21&rft.issue=3&rft.spage=306&rft.isbn=&rft.btitle=&rft.title=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinus taeda; USA, South; phytogeography; growth ER - TY - JOUR T1 - Response of western hemlock (Tsuga heterophylla ) and early huckleberry (Vaccinium ovalifolium ) seedlings to forest windthrow. AN - 16085179; 2646898 AB - Seedlings of western hemlock (Tsuga heterophylla (Raf.) Sarg.) and early huckleberry (Vaccinium ovalifolium Smith) were studied for 5 years following windthrow in a dense 45-year-old forest to better understand the contrasting reproductive and growth strategies of woody shrubs and trees to small natural disturbances in temperate rain forest environments. Seedlings of both species responded to the disturbance with increased growth and increased recruitment. Tsuga seedling establishment and Vaccinium seedling density increased after the disturbance. Tsuga height growth, number of branches, and biomass were linearly related to solar radiation transmission in all 3 years. Vaccinium exhibited an exponential shoot growth pattern characterized by an initial delay of 3-4 years, whereas Tsuga increased productivity within months of the disturbance and continued to increase its growth exponentially throughout the study. Vaccinium increased rate of branching, total biomass, and allocation of biomass to roots following the windthrow, but did not significantly increase twig elongation rates until the fourth growing season. JF - CAN. J. FOR. RES./J. CAN. RECH. FOR. AU - Alaback, P B AU - Tappeiner, JC II AD - USDA Forest Serv., Pacific Northwest Res. Stn., P.O. Box 20909, Juneau, AK 99802, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 534 EP - 539 VL - 21 IS - 4 KW - reproduction KW - Ecology Abstracts KW - Vaccinium ovalifolium KW - Tsuga heterophylla KW - windthrow KW - seedlings KW - growth KW - D 04625:Plants - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16085179?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.atitle=Response+of+western+hemlock+%28Tsuga+heterophylla+%29+and+early+huckleberry+%28Vaccinium+ovalifolium+%29+seedlings+to+forest+windthrow.&rft.au=Alaback%2C+P+B%3BTappeiner%2C+JC+II&rft.aulast=Alaback&rft.aufirst=P&rft.date=1991-01-01&rft.volume=21&rft.issue=4&rft.spage=534&rft.isbn=&rft.btitle=&rft.title=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Tsuga heterophylla; Vaccinium ovalifolium; growth; windthrow; seedlings ER - TY - JOUR T1 - Strain of Staphylococcus attractive to laboratory strain Anastrepha ludens (Diptera: Tephritidae). AN - 16084014; 2640974 AB - A bacterium isolated from the mouthparts of a laboratory-culture female Mexican fruit fly, Anastrepha ludens (Loew), was highly attractive to sugar-fed, protein-starved, 4-16-old male and female laboratory-cultured Mexican fruit flies. The bacterium was identified as a strain of Staphylococcus (RGM-1) matching most closely to S. aureus . This is the first report of a Staphylococcus attractive to a tephritid species. Four S. aureus strains purchased from the American Type Culture Collection were as attractive to A. ludens as RGM-1. Tryptic soy broth cultures of RGM-1 were compared with torula yeast-borax, a standard bait for Anastrepha , for attractiveness to Mexican fruit flies. Bacterial preparations generally were less attractive or at best equally attractive as torula yeast-borax when baits were tested in pairs of competing McPhail traps in a greenhouse flight chamber and in a grapefruit orchard. JF - Annals of the Entomological Society of America AU - Robacker, D C AU - Garcia, JA AU - Martinez, J AU - Kaufman, M G AD - Crop Qual. and Fruit Insects Res., USDA-ARS, Weslaco, TX 78596, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 555 EP - 559 VL - 84 IS - 5 SN - 0013-8746, 0013-8746 KW - Staphylococcus aureus KW - isolates KW - Entomology Abstracts; Chemoreception Abstracts; Microbiology Abstracts B: Bacteriology KW - Anastrepha ludens KW - chemoreception KW - Tephritidae KW - attractancy KW - mouthparts KW - Diptera KW - Z 05193:Orientation KW - J 02870:Invertebrate bacteriology KW - R 18052:Feeding UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16084014?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annals+of+the+Entomological+Society+of+America&rft.atitle=Strain+of+Staphylococcus+attractive+to+laboratory+strain+Anastrepha+ludens+%28Diptera%3A+Tephritidae%29.&rft.au=Robacker%2C+D+C%3BGarcia%2C+JA%3BMartinez%2C+J%3BKaufman%2C+M+G&rft.aulast=Robacker&rft.aufirst=D&rft.date=1991-01-01&rft.volume=84&rft.issue=5&rft.spage=555&rft.isbn=&rft.btitle=&rft.title=Annals+of+the+Entomological+Society+of+America&rft.issn=00138746&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Anastrepha ludens; Tephritidae; Diptera; mouthparts; attractancy; chemoreception ER - TY - JOUR T1 - Generation of polyunsaturated fatty acids from vegetable oils using the lipase from ground oat (Avena sativa L.) seeds as a catalyst. AN - 16083919; 2644392 AB - Ground oat seeds can serve as a source of lipase in both aqueous-oil emulsions and in organic solvents. In organic solvents the lipase lost selectivity for monounsaturated fatty acids. Because of this, polyunsaturated vegetable oils were rapidly split. The lipase source is very inexpensive and is recyclable, to a certain extent. JF - Biotechnology Letters AU - Piazza, G J AD - East. Reg. Res. Cent., USDA, ARS, 600 E. Mermaid Lane, Philadelphia, PA 19118, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 173 EP - 178 VL - 13 IS - 3 SN - 0141-5492, 0141-5492 KW - Avena sativa KW - activity KW - hydrolysis KW - production KW - oils KW - polyunsaturated fatty acids KW - seeds KW - triacylglycerol lipase KW - Biotechnology and Bioengineering Abstracts KW - W 30401:Enzymes and cofactors UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16083919?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biotechnology+Letters&rft.atitle=Generation+of+polyunsaturated+fatty+acids+from+vegetable+oils+using+the+lipase+from+ground+oat+%28Avena+sativa+L.%29+seeds+as+a+catalyst.&rft.au=Piazza%2C+G+J&rft.aulast=Piazza&rft.aufirst=G&rft.date=1991-01-01&rft.volume=13&rft.issue=3&rft.spage=173&rft.isbn=&rft.btitle=&rft.title=Biotechnology+Letters&rft.issn=01415492&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Lupine influence on soil carbon, nitrogen and microbial activity in developing ecosystems at Mount St. Helens. AN - 16083908; 2646215 AB - Lupine influence on soil C, N, and microbial activity was estimated by comparing root-zone soil (LR) to nonroot-zone soil (NR) collected at Mount St. Helens. Samples were collected from 5 sites forming a gradient of C and N levels as a reflection of different locations and varying volcanic disturbance by the 1980 eruption. In volcanic substrates undergoing primary ecosystem development, C and N levels were low, as would be expected, but higher in LR soil than NR soil. At the least disturbed sites, N was only slightly greater in LR soil whereas significantly less C was observed in LR soil than in surrounding NR soil. Active soil microbial biomass-C and cumulative respiration were correlated with C and N and were significantly greater in LR soil than in NR soil for all sites. The results are consistent with some expected trends in ecosystem development and demonstrate the significance of resource dynamics and lupines in determining patterns of ecosystem response to disturbance at Mount St. Helens. JF - Oecologia AU - Halvorson, J J AU - Smith, J L AU - Franz, E H AD - USDA-ARS, 215 Johnson Hall, Washington State Univ., Pullman, WA 99164, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 162 EP - 170 VL - 87 IS - 2 SN - 0029-8549, 0029-8549 KW - soil chemistry KW - respiration KW - carbon KW - nitrogen KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology; Microbiology Abstracts B: Bacteriology; Ecology Abstracts KW - volcanic environments KW - Lupinus KW - USA, Washington, Mount St. Helens KW - soil microorganisms KW - K 03095:Soil KW - A 01047:General KW - J 02901:Soil and plants KW - D 04637:Legumes KW - D 04600:Soil UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16083908?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Oecologia&rft.atitle=Lupine+influence+on+soil+carbon%2C+nitrogen+and+microbial+activity+in+developing+ecosystems+at+Mount+St.+Helens.&rft.au=Halvorson%2C+J+J%3BSmith%2C+J+L%3BFranz%2C+E+H&rft.aulast=Halvorson&rft.aufirst=J&rft.date=1991-01-01&rft.volume=87&rft.issue=2&rft.spage=162&rft.isbn=&rft.btitle=&rft.title=Oecologia&rft.issn=00298549&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lupinus; USA, Washington, Mount St. Helens; soil microorganisms; volcanic environments ER - TY - JOUR T1 - Direct observations of owls and heteromyid rodents: Can predation risk explain microhabitat use?. AN - 16083609; 2646053 AB - Capture frequencies were lower for all heteromyid species than for the cricetid species, Peromyscus maniculatus . Heteromyid activity was lower in open habitat and under bright illumination. Illumination had no significant effect of risk, perhaps because rodents changed activity patterns under full moon to compensate for a potential increment in risk. Habitat, however, did affect risk: all species were attacked and captured more frequently in the open. Bipedal species were attacked relatively more in the open than were quadrupeds. If these results apply to all predators, they indicate that predation alone cannot account for the divergent microhabitat associations of bipedal and quadrupedal species. Bipedal heteromyids, however, escaped owl attacks more frequently than did quadrupeds of equivalent size. It is therefore conceivable that they experience lower overall risk in nature, where owls may preferentially attack more easily captured prey species when given a choice. JF - Ecology AU - Longland, W S AU - Price, M V AD - USDA-Agric. Res. Serv., 920 Valley Rd., Reno, NV 89512, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 2261 EP - 2273 VL - 72 IS - 6 SN - 0012-9658, 0012-9658 KW - habitat utilization KW - Ecology Abstracts KW - morphology KW - Heteromyidae KW - North America KW - risks KW - predation KW - Bubo virginianus KW - deserts KW - D 04672:Mammals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16083609?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecology&rft.atitle=Direct+observations+of+owls+and+heteromyid+rodents%3A+Can+predation+risk+explain+microhabitat+use%3F.&rft.au=Longland%2C+W+S%3BPrice%2C+M+V&rft.aulast=Longland&rft.aufirst=W&rft.date=1991-01-01&rft.volume=72&rft.issue=6&rft.spage=2261&rft.isbn=&rft.btitle=&rft.title=Ecology&rft.issn=00129658&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Heteromyidae; Bubo virginianus; North America; predation; risks; morphology; deserts ER - TY - JOUR T1 - Height growth of young Pacific silver fir and noble fir established on clearcuts in the Pacific silver fir zone of western Washington. AN - 16083470; 2646045 AB - Stem analyses were done on young (20-30 years at breast height) Pacific silver fir (Abies amabilis (Dougl.) Forbes) and noble fir (Abies procera Rehd.) trees established after clear-cut harvesting of old stands in the Pacific silver fir zone of western Washington. Early height-growth patterns and heights attained at 20 years breast-height age were compared with existing data and curves derived from old stands, and among plant associations and elevations. Early growth of Pacific silver fir and noble fir on recent clearcuts was more rapid than would be expected on the basis of existing data derived from old trees. We hypothesize that the more rapid growth of recently established stands represents the combined result of several factors, including less competition, possible climatic change, exclusion of poorer sites from the new sample, and bias associated with past shifts in competitive status of the old trees used to construct height-growth curves from stem analyses. JF - CAN. J. FOR. RES./J. CAN. RECH. FOR. AU - Murray, MD AU - Coble, D AU - Curtis, RO AD - Pacific Northwest Res. Stn., USDA Forest Serv., Olympia, WA 98502, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1213 EP - 1221 VL - 21 IS - 8 KW - growth KW - Ecology Abstracts KW - USA, Washington KW - clear cutting KW - Abies amabilis KW - Abies procera KW - D 04635:Conifers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16083470?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.atitle=Height+growth+of+young+Pacific+silver+fir+and+noble+fir+established+on+clearcuts+in+the+Pacific+silver+fir+zone+of+western+Washington.&rft.au=Murray%2C+MD%3BCoble%2C+D%3BCurtis%2C+RO&rft.aulast=Murray&rft.aufirst=MD&rft.date=1991-01-01&rft.volume=21&rft.issue=8&rft.spage=1213&rft.isbn=&rft.btitle=&rft.title=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Abies amabilis; Abies procera; USA, Washington; clear cutting ER - TY - JOUR T1 - Ecomorphological relationships of a guild of ground-foraging birds in northern California, USA. AN - 16083129; 2646329 AB - We studied habitat and morphological relationships of nine species of birds comprising a ground-foraging guild within four distinct locations in northern California. Although the nine species overlapped extensively in habitat use, we observed subtle differences among species in specific characteristics of the habitats they used. About 40% of all cases were classified to the correct species based on a discriminant analysis (DA) of habitats across all study areas. Classification success from DAs on habitats within study areas ranged from 42 to 66%. Morphologies of species differed to varying degrees as 91% of all cases were classified to correct species by a DA of morphological variables. This morphological separation suggested that each species used different modes of obtaining resources. Morphology predicted from 13.6 to 19.0% of the variation in habitat use within each study area and only 13.9% of the habitat variation across all study areas. JF - Oecologia AU - Block, WM AU - Brennan, LA AU - Gutierrez, R J AD - USDA Forest Serv., Rocky Mt. Forest and Range Exp. Stn., For. Sci. Lab., Arizona State Univ. Campus, Tempe AZ 85287-1304, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 449 EP - 458 VL - 87 IS - 3 SN - 0029-8549, 0029-8549 KW - habitat KW - Ecology Abstracts KW - guilds KW - morphology KW - Aves KW - foraging behavior KW - USA, California KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16083129?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Oecologia&rft.atitle=Ecomorphological+relationships+of+a+guild+of+ground-foraging+birds+in+northern+California%2C+USA.&rft.au=Block%2C+WM%3BBrennan%2C+LA%3BGutierrez%2C+R+J&rft.aulast=Block&rft.aufirst=WM&rft.date=1991-01-01&rft.volume=87&rft.issue=3&rft.spage=449&rft.isbn=&rft.btitle=&rft.title=Oecologia&rft.issn=00298549&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; USA, California; morphology; guilds; foraging behavior ER - TY - JOUR T1 - Nest-site characteristics of Hammond's and Pacific-slope flycatchers in northwestern California. AN - 16082655; 2645665 AB - Thirty nests of Hammond's (Empidonax hammondii ) and 88 nests of Pacific-slope (E. difficilis ) Flycatchers were located in different-aged Douglas-fir (Pseudotsuga menziesii )/tanoak (Lithocarpus densiflorus ) dominated forests at 12 study sites in northwestern California during the breeding seasons of 1984, 1985, 1987 and 1988. In contrast to Pacific-slope Flycatchers, Hammond's used nest trees that averaged two to three times taller; placed nests three times higher and farther from the tree bole; used only live trees; placed nests only on small- to medium-diameter branches; situated nests in areas with higher foliage cover; and favored nest placement on the northeast and southwest sides of trees. Hammond's Flycatchers in old-growth and mature forests chose nest sites with more open canopy than that found at random sites. Pacific-slope Flycatchers in old-growth and mature forests nested at sites with a lower mid-canopy bole height. JF - Condor AU - Sakai, H F AU - Noon, B R AD - USDA For. Serv., Pacific Southwest For. and Range Exp. Stn., Redwood Sci. Lab., 1700 Bayview Dr., Arcata, CA 95521, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 563 EP - 574 VL - 93 IS - 3 SN - 0010-5422, 0010-5422 KW - site selection KW - Empidonax hammondii KW - Ecology Abstracts KW - Empidonax difficilis KW - nests KW - USA, California KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16082655?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Condor&rft.atitle=Nest-site+characteristics+of+Hammond%27s+and+Pacific-slope+flycatchers+in+northwestern+California.&rft.au=Sakai%2C+H+F%3BNoon%2C+B+R&rft.aulast=Sakai&rft.aufirst=H&rft.date=1991-01-01&rft.volume=93&rft.issue=3&rft.spage=563&rft.isbn=&rft.btitle=&rft.title=Condor&rft.issn=00105422&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Empidonax difficilis; USA, California; nests ER - TY - JOUR T1 - Radial growth after a shelterwood seed cut in a mature stand of white spruce in interior Alaska. AN - 16082410; 2646798 AB - Radial growth following a shelterwood seed cut in a 174-year-old stand of white spruce (Picea glauca (Moench) Voss) in interior Alaska was compared with growth in an adjacent undisturbed stand of the same age. After a 2-year lag, radial growth of residual trees accelerated an average of 27% in 5 of the next 6 years. Net mean increase in growth after 8 years was 164%. Basal area growth of individual shelterwood trees increased 26.8% over the 14-year posttreatment period, while control trees increased 16.5%. JF - CAN. J. FOR. RES./J. CAN. RECH. FOR. AU - Youngblood, A P AD - USDA Forest Serv., Pacific Northwest Res. Stn., Inst. North. For., Fairbanks, AK 99775-5500, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 410 EP - 413 VL - 21 IS - 3 KW - growth KW - Ecology Abstracts KW - USA, Alaska KW - cutting KW - Picea glauca KW - D 04635:Conifers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16082410?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.atitle=Radial+growth+after+a+shelterwood+seed+cut+in+a+mature+stand+of+white+spruce+in+interior+Alaska.&rft.au=Youngblood%2C+A+P&rft.aulast=Youngblood&rft.aufirst=A&rft.date=1991-01-01&rft.volume=21&rft.issue=3&rft.spage=410&rft.isbn=&rft.btitle=&rft.title=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Picea glauca; USA, Alaska; cutting ER - TY - JOUR T1 - Design of ecological networks for monitoring global change. AN - 16081883; 2645823 JF - Environmental Conservation AU - Bailey, R G AD - Land Manage. Plan. Syst., USDA Forest Serv., 3825 E. Mulberry St., Fort Collins, CO 80521, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 173 EP - 175 VL - 18 IS - 2 SN - 0376-8929, 0376-8929 KW - environmental monitoring KW - Ecology Abstracts KW - climatic changes KW - D 04705:Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16081883?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Conservation&rft.atitle=Design+of+ecological+networks+for+monitoring+global+change.&rft.au=Bailey%2C+R+G&rft.aulast=Bailey&rft.aufirst=R&rft.date=1991-01-01&rft.volume=18&rft.issue=2&rft.spage=173&rft.isbn=&rft.btitle=&rft.title=Environmental+Conservation&rft.issn=03768929&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - climatic changes ER - TY - JOUR T1 - Fire ant myrmecophiles: Feeding relationships of Martinezia dutertrei and Euparia castanea (Coleoptera: Scarabaeidae) with their host ants, Solenopsis spp. (Hymenoptera: Formicidae). AN - 16081571; 2641233 AB - Feeding relationships of adult Euparia castanea Serville and Martinezia dutertrei Chalumeau with their ant hosts were studied in the laboratory using the radioactive tracer super(32)P. Euparia castanea was tested with Solenopsis geminata (F.), Martinezia dutertrei Chalumeau was tested with S. invicta Buren, S. richteri Forel, and S. geminata . In whole colony tests, both species of beetles acquired radioactivity. M. dutertrei obtained food from live ants, but E. castanea did not. Both species of beetles ate ant larvae. E. castanea also obtained food from ant larvae by strigilation. Neither species of beetle fed on ant feces or other secretions on the substrate. Both species of beetles obtained food by strigilation from fresh and decomposed worker ant cadavers. M. dutertrei also ate both kinds of ant cadavers. JF - INSECTES SOCIAUX. AU - Wojcik, D P AU - Smittle, B J AU - Cromroy, H L AD - Med. and Vet. Entomol. Res. Lab., USDA, ARS, P.O. Box 14565, Gainesville, FL 32604, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 273 EP - 281 VL - 38 IS - 3 SN - 0020-1812, 0020-1812 KW - feeding behaviour KW - Martinezia dutertrei KW - Euparia castanea KW - Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - Coleoptera KW - Formicidae KW - myrmecophily KW - Scarabaeidae KW - Solenopsis KW - Hymenoptera KW - D 04659:Insects KW - Y 25503:Insects KW - Z 05199:Feeding UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16081571?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=INSECTES+SOCIAUX.&rft.atitle=Fire+ant+myrmecophiles%3A+Feeding+relationships+of+Martinezia+dutertrei+and+Euparia+castanea+%28Coleoptera%3A+Scarabaeidae%29+with+their+host+ants%2C+Solenopsis+spp.+%28Hymenoptera%3A+Formicidae%29.&rft.au=Wojcik%2C+D+P%3BSmittle%2C+B+J%3BCromroy%2C+H+L&rft.aulast=Wojcik&rft.aufirst=D&rft.date=1991-01-01&rft.volume=38&rft.issue=3&rft.spage=273&rft.isbn=&rft.btitle=&rft.title=INSECTES+SOCIAUX.&rft.issn=00201812&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Scarabaeidae; Coleoptera; Solenopsis; Formicidae; Hymenoptera; myrmecophily ER - TY - JOUR T1 - The influence of floral bud phenology on the potential mating system of a wind-pollinated Douglas-fir orchard. AN - 16081096; 2646089 AB - Reproductive bud phenology from 1983 through 1989 limited potential outcross efficiency to a maximum of 58 to 87%, in a Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) clonal orchard near Monmouth, Oregon. Potential outcross efficiency was calculated for 20 clones from dates of male and female bud opening and pollination mechanism information. Cool weather before bud opening of the earliest clones delayed and compressed the breeding period and resulted in a greater percentage of trees having synchronous periods of pollen release and receptive seed strobili. Length of breeding season among years averaged 20 days and ranged from 16 to 27 days. Differences in phenology significantly impacted the breeding system because the overall breeding period of the orchard clones exceeded the 8-day receptive period of individual clones by two or three times and often prohibited or limited potential outcrossing between the earliest and latest clones. Outcrossing was greatest in clones with intermediate phenology and least in the earliest clones. JF - CAN. J. FOR. RES./J. CAN. RECH. FOR. AU - Copes, D L AU - Sniezko, R A AD - For. Sci. Lab., Pacific Northwest Res. Stn., USDA Forest Serv., 3200 Jefferson Way, Corvallis, OR 97330, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 813 EP - 820 VL - 21 IS - 6 KW - phenology KW - Ecology Abstracts KW - Pseudotsuga menziesii KW - buds KW - flowers KW - pollination KW - reproduction KW - D 04635:Conifers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16081096?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.atitle=The+influence+of+floral+bud+phenology+on+the+potential+mating+system+of+a+wind-pollinated+Douglas-fir+orchard.&rft.au=Copes%2C+D+L%3BSniezko%2C+R+A&rft.aulast=Copes&rft.aufirst=D&rft.date=1991-01-01&rft.volume=21&rft.issue=6&rft.spage=813&rft.isbn=&rft.btitle=&rft.title=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pseudotsuga menziesii; reproduction; pollination; flowers; buds ER - TY - JOUR T1 - Partial purification and comparative characterization of alpha -amylase secreted by Lactobacillus amylovorus . AN - 16079861; 2630788 AB - An alpha -amylase (E.C. 3.2.1.1.) secreted by Lactobacillus amylovorus was partially purified and characterized. This high-molecular-weight enzyme (Imam SH, Burgess-Cassler A, Cote GL, Gordon SH, Baker FL (1991) Curr Microbiol 22:365-370) was quantified with a clinical alpha -amylase assay adapted to a microplate format. It was isolated from concentrated cell-free culture medium by ammonium sulfate precipitation, ion exchange, and hydrophobic interaction chromatographies. The enzyme was not particularly thermostable, but like three other microbial alpha -amylases tested for comparison, was renaturable following treatment with SDS and heat. The pH optimum and pI were 5.5 plus or minus 0.5 and 5.0, respectively; its temperature optimum was 60-65 degree C, and the molecular weight on SDS gels was 140 plus or minus 10 kDa. JF - Current Microbiology AU - Burgess-Cassler, A AU - Imam, S AD - Biopolym. Res. Unit, Natl. Cent. Agric. Util. Res., USDA, Agric. Res. Serv., Peoria, IL 61604-3999, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 207 EP - 213 VL - 23 IS - 4 SN - 0343-8651, 0343-8651 KW - Lactobacillus amylovorus KW - activity KW - alpha -amylase KW - characterization KW - purification KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - W 30401:Enzymes and cofactors KW - A 01006:Enzymes & cofactors KW - J 02728:Enzymes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16079861?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Current+Microbiology&rft.atitle=Partial+purification+and+comparative+characterization+of+alpha+-amylase+secreted+by+Lactobacillus+amylovorus+.&rft.au=Burgess-Cassler%2C+A%3BImam%2C+S&rft.aulast=Burgess-Cassler&rft.aufirst=A&rft.date=1991-01-01&rft.volume=23&rft.issue=4&rft.spage=207&rft.isbn=&rft.btitle=&rft.title=Current+Microbiology&rft.issn=03438651&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Application of the nitrogen-tillage-residue-management (NTRM) model for corn grown in low-input and conventional agricultural systems. AN - 16079808; 2640382 AB - Unlike many conventional agricultural systems, low-input management techniques minimize the use of nutrients and pesticides produced off the farm. This study evaluates the performance of the NTRM model in simulating low-input and conventionally managed field corn (Zea mays L.) grown in a comparative cropping systems experiment initiated in 1981 on a site in southeastern Pennsylvania, USA. NTRM is a comprehensive model that requires data on weather, soil properties, management, and crop characteristics. For our study, it predicted daily soil water, nitrogen, and temperature with depth; daily biomass and leaf area; and final grain yield. Conventionally grown corn in 1985 was used for yield calibration of the model; other data collected in 1985, 1986, and 1987 provided validation. Early model runs gave accurate soil temperature predictions but poor soil water predictions compared to field measurements. Model simulations suggested an underground water source later verified at the field site. A modification of NTRM resulted in greatly improved soil water predictions. JF - Ecological Modelling AU - Radke, J K AU - Shaffer, MJ AU - Kroll, K S AU - Saponara, J AD - USDA Agric. Res. Serv., Natl. Soil Tilth Lab., Ames, IA 50011, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 241 EP - 255 VL - 55 IS - 3-4 SN - 0304-3800, 0304-3800 KW - agricultural practices KW - models KW - corn KW - environmental management KW - Pennsylvania KW - NTRM (Nitrogen Tillage Residue Management) KW - nitrogen KW - Zea mays KW - agriculture KW - management KW - simulation KW - Health & Safety Science Abstracts; Ecology Abstracts KW - USA, Pennsylvania KW - H SE2.2:DATA ANALYSIS KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16079808?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Modelling&rft.atitle=Application+of+the+nitrogen-tillage-residue-management+%28NTRM%29+model+for+corn+grown+in+low-input+and+conventional+agricultural+systems.&rft.au=Radke%2C+J+K%3BShaffer%2C+MJ%3BKroll%2C+K+S%3BSaponara%2C+J&rft.aulast=Radke&rft.aufirst=J&rft.date=1991-01-01&rft.volume=55&rft.issue=3-4&rft.spage=241&rft.isbn=&rft.btitle=&rft.title=Ecological+Modelling&rft.issn=03043800&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Zea mays; USA, Pennsylvania; agriculture; simulation; management; nitrogen ER - TY - JOUR T1 - Reproductive compatibility and mitochondrial DNA restriction site analysis of New World screwworm, Cochliomyia hominivorax , from North Africa and Central America. AN - 16079510; 2638609 AB - The reproductive compatibility of New World screwworms, Cochliomyia hominivorax (Coquerel), from North Africa and a strain being mass produced for the Mexican eradication programme was examined to assess the feasibility of using flies from the Mexican screwworm mass production facility for a sterile insect technique eradication programme in North Africa. Mitochondrial DNA restriction site analysis indicated that the genetic divergence of the North African strain from Mexican and Central American strains was within the range of the diversity observed in Central American, Mexican and Caribbean populations. Test results indicate that New World screwworms from North Africa are reproductively compatible with the strain currently being mass produced in Mexico. Mating barriers should not impede the progress of an eradication programme using the sterile insect technique in North Africa with sterile screwworms from the Mexican mass production facility. JF - Medical and Veterinary Entomology AU - Taylor, D B AU - Hammack, L AU - Roehrdanz, R L AD - USDA, ARS, BRL, P.O. Box 5674, Fargo, ND 58105, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 145 EP - 151 VL - 5 IS - 2 SN - 0269-283X, 0269-283X KW - reproductive behaviour KW - mitochondria KW - cytology KW - restriction endonuclease mapping KW - Calliphoridae KW - Cochliomyia hominivorax KW - DNA KW - Diptera KW - biological control KW - sterile-release KW - Biotechnology and Bioengineering Abstracts; Genetics Abstracts; Entomology Abstracts KW - Africa, North KW - Central America KW - Z 05206:Medical & veterinary entomology KW - W 30513:Pest control KW - Z 05213:Genes & molecular genetics KW - G 07367:GENERAL KW - Z 05192:Reproductive behavior UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16079510?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Medical+and+Veterinary+Entomology&rft.atitle=Reproductive+compatibility+and+mitochondrial+DNA+restriction+site+analysis+of+New+World+screwworm%2C+Cochliomyia+hominivorax+%2C+from+North+Africa+and+Central+America.&rft.au=Taylor%2C+D+B%3BHammack%2C+L%3BRoehrdanz%2C+R+L&rft.aulast=Taylor&rft.aufirst=D&rft.date=1991-01-01&rft.volume=5&rft.issue=2&rft.spage=145&rft.isbn=&rft.btitle=&rft.title=Medical+and+Veterinary+Entomology&rft.issn=0269283X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Cochliomyia hominivorax; Calliphoridae; Diptera; Africa, North; Central America; DNA; sterile-release; biological control ER - TY - JOUR T1 - A laboratory rain chamber for testing rainfastness of insecticide deposits. AN - 16078958; 2631291 AB - A laboratory rain chamber was constructed to apply a measured amount of simulated rainfall to loblolly pine, Pinus taeda L., foliage to determine rainfastness of insecticide deposits (Nord, J.C. 1991. J. Entomol. Sci. 26: 287-298). It has also been used in efficacy tests of various adjuvants in preventing rainwashing of insecticides and fungicides. The rain chamber is described here, as are its adjustment and calibration. JF - Journal of Entomological Science AU - Nord, J C AD - USDA Forest Serv., Southeast. Forest Exp. Stn., For. Sci. Lab., Green St., Athens, GA 30602, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 267 EP - 270 VL - 26 IS - 2 SN - 0749-8004, 0749-8004 KW - pesticide applications KW - longevity KW - leaves KW - Health & Safety Science Abstracts; Entomology Abstracts KW - sprays KW - insecticides KW - rainfall KW - rain KW - H SE5.20:INSECTICIDES KW - Z 05156:Techniques UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16078958?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Entomological+Science&rft.atitle=A+laboratory+rain+chamber+for+testing+rainfastness+of+insecticide+deposits.&rft.au=Nord%2C+J+C&rft.aulast=Nord&rft.aufirst=J&rft.date=1991-01-01&rft.volume=26&rft.issue=2&rft.spage=267&rft.isbn=&rft.btitle=&rft.title=Journal+of+Entomological+Science&rft.issn=07498004&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - insecticides; rainfall; rain; sprays; leaves ER - TY - CONF T1 - Phytochemicals at the plant-insect interface. AN - 16078183; 2630097 AB - Opportunities for genetic engineering of natural products are increasing, while discovery and development of synthetic insecticides and developmental regulators are declining. However, discovery and potential applications of natural compounds are constrained by present ecological knowledge and theory. Biochemistry offers additional perspective to chemical interaction across the interface between plant and herbivore. Phytochemical effects on an insect herbivore may be determined by physical, chemical, and biotic characteristics of the microenvironment during phytochemical transfer between plant and insect. The midgut lumen is often overlooked as part of this microenvironment. It initially determines rates of metabolism and uptake of phytochemicals into hemolymph, and ultimately the quantity of a compound seen by affected tissues. Uptake and transport of coumarins in hemolymph are being studied in larvae of the citrus root weevil Diaprepes abbreviatus . JF - Archives of Insect Biochemistry and Physiology AU - Shapiro, J P Y1 - 1991 PY - 1991 DA - 1991 SP - 191 EP - 200 VL - 17 IS - 4 KW - allelochemicals KW - biochemistry KW - interspecific interactions KW - Ecology Abstracts; Entomology Abstracts KW - Diaprepes abbreviatus KW - reviews KW - Coleoptera KW - plants KW - Curculionidae KW - Insecta KW - Z 05203:Relations to plants KW - D 04615:Ecology studies - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16078183?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Archives+of+Insect+Biochemistry+and+Physiology&rft.atitle=Phytochemicals+at+the+plant-insect+interface.&rft.au=Shapiro%2C+J+P&rft.aulast=Shapiro&rft.aufirst=J&rft.date=1991-01-01&rft.volume=17&rft.issue=4&rft.spage=191&rft.isbn=&rft.btitle=&rft.title=Archives+of+Insect+Biochemistry+and+Physiology&rft.issn=07394462&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Detoxification spectrum of the cigarette beetle symbiont Symbiotaphrina kochii in culture. AN - 16077576; 2638309 AB - The ability of cultures of the cigarette beetle symbiont, Symbiotaphrina kochii Jurzitza ex. W. Gams and v. Arx, to utilize toxins as carbon sources and produce detoxifying enzymes was tested. This yeast could apparently use many of the plant allelochemicals, meal toxins, mycotoxins, insecticides, and herbicides tested as carbon sources, suggesting the ability to detoxify these compounds. Detoxify enzymes that were detected using representative substrates included aromatic ester hydrolase, glucosidase, phosphatase, and glutathione transferase. This yeast was also able to hydrolyze the organophosphorus insecticide parathion. Thus, this yeast appears to have broad-spectrum detoxifying capabilities. Either this strain of yeast, improved strains, or other microorganisms to which genetic material from this yeast has been transferred may be of use in decontaminating materials containing multiple toxins. JF - Entomologia Experimentalis et Applicata AU - Shen, S K AU - Dowd, P F AD - Zoonotic Dis. Lab., USDA, ARS, BARC-E, Beltsville, MD 20705, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 51 EP - 59 VL - 60 IS - 1 SN - 0013-8703, 0013-8703 KW - Lasioderma serricorne KW - Symbiotaphrina kochii KW - malathion KW - allelochemicals KW - symbionts KW - Pollution Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology; Entomology Abstracts KW - mycotoxins KW - insecticides KW - biodegradation KW - detoxification KW - Anobiidae KW - pesticides KW - toxins KW - Coleoptera KW - herbicides KW - A 01016:Microbial degradation KW - Z 05183:Toxicology & resistance KW - K 03098:Spoilage & biodegradation KW - Z 05200:Symbiosis & commensalism KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16077576?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Entomologia+Experimentalis+et+Applicata&rft.atitle=Detoxification+spectrum+of+the+cigarette+beetle+symbiont+Symbiotaphrina+kochii+in+culture.&rft.au=Shen%2C+S+K%3BDowd%2C+P+F&rft.aulast=Shen&rft.aufirst=S&rft.date=1991-01-01&rft.volume=60&rft.issue=1&rft.spage=51&rft.isbn=&rft.btitle=&rft.title=Entomologia+Experimentalis+et+Applicata&rft.issn=00138703&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Coleoptera; Anobiidae; detoxification; pesticides; biodegradation; toxins; insecticides; malathion; mycotoxins; herbicides; allelochemicals; symbionts ER - TY - JOUR T1 - A fluorometric study with 1-anilinonaphthalene-8-sulfonic acid (ANS) of the interactions of ATP and ADP with rubisco activase. AN - 16076909; 2644636 AB - The interactions of ATP and ADP with rubisco activase purified from spinach were investigated by measuring enhanced fluorescence due to ANS-binding to the protein. Evidence of conformational changes was observed from the differences in the interaction of ANS with rubisco activase in the presence of excess ATP and ADP. Fluorescent changes associated with the titration of a rubisco activase-ANS mixture with ATP and ADP indicated that the binding of ADP to rubisco activase was much tighter than that of ATP. The concentration of Mg super(2+) and pH had significant effects on the affinities of rubisco activase for ATP and ADP, with higher pH and Mg super(2+) concentration facilitating the binding of ATP to rubisco activase in the presence of ADP. JF - Biochimica et Biophysica Acta AU - Wang, Zhen-Yuan AU - Portis, AR Jr AD - USDA/ARS, 190 Plant and Anim. Biotechnol. Lab., 1201 W. Gregory Ave., Urbana, IL 61801-3838, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 263 EP - 267 VL - 1079 IS - 3 SN - 0167-4838, 0167-4838 KW - 1-anilinonaphthalene-8-sulfonic acid KW - ADP KW - ATP KW - Spinacia oleracea KW - fluorescence KW - fluorometry KW - interaction KW - rubisco activase KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16076909?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochimica+et+Biophysica+Acta&rft.atitle=A+fluorometric+study+with+1-anilinonaphthalene-8-sulfonic+acid+%28ANS%29+of+the+interactions+of+ATP+and+ADP+with+rubisco+activase.&rft.au=Wang%2C+Zhen-Yuan%3BPortis%2C+AR+Jr&rft.aulast=Wang&rft.aufirst=Zhen-Yuan&rft.date=1991-01-01&rft.volume=1079&rft.issue=3&rft.spage=263&rft.isbn=&rft.btitle=&rft.title=Biochimica+et+Biophysica+Acta&rft.issn=01674838&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Efficiency of various cloned DNA probes for detection of bovine viral diarrhea viruses. AN - 16075125; 2638298 AB - We have evaluated 24 cytopathic (CP) and 37 noncytopathic (NCP) strains of bovine viral diarrhea virus (BVDV) with a dot blot assay using four different genome segments of the NADL strain as hybridization probes (p80, p54, gp53, and gp62). The p80 and p54 probes hybridized to 23/24 (96%) and 22/24 (92%), respectively, of CP strains examined. In contrast, these same two probes only detected 16/37 (43%) and 5/37 (13%), respectively, of the NCP strains examined. The gp53 probe detected 18/24 (75%) and the gp62 probe detected 19/24 (79%) of the CP strains. In contrast, these latter two probes only detected 9/37 (24%) and 7/37 (20%), respectively, of NCP strains. This low detection rate of NCP strains suggests a need for developing a probe based on NCP sequences for identification of NCP strains. JF - Veterinary Microbiology AU - Kwang, J AU - Littledike, E T AU - Bolin, S AU - Collett AD - USDA, ARS, U.S. Mean Anim. Res. Cent., Clay Center, NE 68933, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 279 EP - 288 VL - 28 IS - 3 SN - 0378-1135, 0378-1135 KW - bovine viral diarrhea virus KW - RNA KW - cDNA KW - genes KW - hybridization analysis KW - staining KW - Biotechnology and Bioengineering Abstracts; Virology & AIDS Abstracts KW - V 22050:Viral genetics including virus reactivation KW - W 30507:Diagnostic UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16075125?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Veterinary+Microbiology&rft.atitle=Efficiency+of+various+cloned+DNA+probes+for+detection+of+bovine+viral+diarrhea+viruses.&rft.au=Kwang%2C+J%3BLittledike%2C+E+T%3BBolin%2C+S%3BCollett&rft.aulast=Kwang&rft.aufirst=J&rft.date=1991-01-01&rft.volume=28&rft.issue=3&rft.spage=279&rft.isbn=&rft.btitle=&rft.title=Veterinary+Microbiology&rft.issn=03781135&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - hybridization analysis; RNA; cDNA; genes; staining ER - TY - JOUR T1 - Oak defoliation and population density relationships for the Gypsy moth (Lepidoptera: Lymantriidae). AN - 16074607; 2638221 AB - Defoliation by the gypsy moth, Lymantria dispar (L.), often has severe consequences for forest trees. Effects range from a reduction of growth to death. Here, we present the results of an 18-yr study on defoliation of oaks by gypsy moth at 17 permanent study plots located in New Jersey. Our objectives were to explore the relationships between gypsy moth population dynamics, density, and defoliation intensity and to predict the likelihood of defoliation from estimates of population density. JF - Journal of Economic Entomology AU - Williams, D W AU - Fuester, R W AU - Metterhouse, W W AU - Balaam, R J AU - Bullock, R H AU - Chianese, R J AD - Benefic. Insects Res. Lab., USDA-ARS, 501 S. Chapel St., Newark, DE 19713, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1508 EP - 1514 VL - 84 IS - 5 SN - 0022-0493, 0022-0493 KW - Lymantria dispar KW - Ecology Abstracts; Entomology Abstracts KW - forests KW - USA, New Jersey KW - Lepidoptera KW - defoliation KW - Lymantriidae KW - population dynamics KW - Z 05205:Populations & general ecology KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16074607?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Oak+defoliation+and+population+density+relationships+for+the+Gypsy+moth+%28Lepidoptera%3A+Lymantriidae%29.&rft.au=Williams%2C+D+W%3BFuester%2C+R+W%3BMetterhouse%2C+W+W%3BBalaam%2C+R+J%3BBullock%2C+R+H%3BChianese%2C+R+J&rft.aulast=Williams&rft.aufirst=D&rft.date=1991-01-01&rft.volume=84&rft.issue=5&rft.spage=1508&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lymantriidae; Lepidoptera; USA, New Jersey; defoliation; population dynamics; forests ER - TY - CONF T1 - Modeling arthropod development time. AN - 16072802; 2638210 AB - This paper examines methods for modeling arthropod development. It considers the design and conduct of constant temperature experiments, organization and manipulation of resulting data sets, and selection of mathematical models that describe development rate as a function of temperature and the variation in development times among individuals in a population. Several models are compared and their strengths and weaknesses discussed. JF - Journal of Agricultural Entomology AU - Wagner, T L AU - Olson, R L AU - Willers, J L Y1 - 1991 PY - 1991 DA - 1991 SP - 251 EP - 270 VL - 8 IS - 4 KW - development KW - temperature KW - Ecology Abstracts; Entomology Abstracts KW - models KW - Arthropoda KW - phenology KW - D 04660:Arachnids KW - D 04659:Insects KW - D 04003:Modeling, mathematics, computer applications KW - Z 05190:Environmental effects KW - Z 05196:Environmental effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16072802?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Agricultural+Entomology&rft.atitle=Modeling+arthropod+development+time.&rft.au=Wagner%2C+T+L%3BOlson%2C+R+L%3BWillers%2C+J+L&rft.aulast=Wagner&rft.aufirst=T&rft.date=1991-01-01&rft.volume=8&rft.issue=4&rft.spage=251&rft.isbn=&rft.btitle=&rft.title=Journal+of+Agricultural+Entomology&rft.issn=0735939X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Mating competitiveness of irradiated Mexican fruit fly (Diptera: Tephritidae). AN - 16072035; 2635844 AB - Laboratory and field cage studies were conducted with two laboratory cultures (one approximately equals 34 yr old and the other 2 yr old). Each culture was divided into irradiated and unirradiated groups and tested in competition against the feral Mexican fruit fly, Anastrepha ludens Loew. In caged full-grown trees, sterile males from the old culture were one-third as successful and those from the 2-yr-old culture were one-fifth as successful in mating as the feral flies. Irradiation also slowed the mating response of laboratory-reared males as compared with unirradiated males, but the slow response put the flies in phase with the mating period of the feral flies. Of 865 captured paris, 63% were on leaves. JF - Journal of Economic Entomology AU - Moreno, D S AU - Sanchez, M AU - Robacker, D C AU - Worley, J AD - Subtrop. Agric. Res. Lab., Crop Qual. and Fruit Insects Res., USDA-ARS, 2301 S. International Blvd., Weslaco, TX 78596, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1227 EP - 1234 VL - 84 IS - 4 SN - 0022-0493, 0022-0493 KW - Anastrepha ludens KW - competitive behaviour KW - Diptera KW - Tephritidae KW - biological control KW - mating KW - sterile-release KW - Biotechnology and Bioengineering Abstracts; Entomology Abstracts KW - W 30513:Pest control KW - Z 05207:Agricultural & general applied entomology KW - Z 05192:Reproductive behavior UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16072035?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Mating+competitiveness+of+irradiated+Mexican+fruit+fly+%28Diptera%3A+Tephritidae%29.&rft.au=Moreno%2C+D+S%3BSanchez%2C+M%3BRobacker%2C+D+C%3BWorley%2C+J&rft.aulast=Moreno&rft.aufirst=D&rft.date=1991-01-01&rft.volume=84&rft.issue=4&rft.spage=1227&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Tephritidae; Diptera; sterile-release; mating; biological control ER - TY - JOUR T1 - Visualization, adhesiveness, and cytochemistry of the extracellular matrix produced by urediniospore germ tubes of Puccinia sorghi . AN - 16071301; 2635420 AB - Adherence of germinating urediniospores of the common maize rust fungus (Puccinia sorghi Schw.) to substrata was studied by ultrastructural and cytochemical examination of extracellular matrix produced by germ tubes in conjunction with measurements of adhesion to plastic and glass surfaces. The results, together with staining patterns obtained with lectins and other polysaccharide-specific reagents, indicate that the extracellular matrix is composed mainly of glycoproteins rich in acidic amino acids and beta -1,3-glucan polymers, and that it is probably responsible for the adhesion of the rust germ tubes to the host leaf surfaces. JF - CAN. J. BOT./J. CAN. BOT. AU - Chaubal, R AU - Wilmot, V A AU - Wynn, W K AD - USDA-ARS, Richard B. Russell Agric. Res. Cent., P.O. Box 5677, Athens, GA 30613, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 2044 EP - 2054 VL - 69 IS - 9 KW - Puccinia sorghi KW - cytochemistry KW - extracellular matrix KW - beta -1,3-glucans KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - urediniospores KW - adhesives KW - germ tubes KW - leaves KW - glycoproteins KW - Zea mays KW - rust KW - K 03089:Fungi: plant KW - A 01026:Gramineous crops KW - K 03030:Fungi UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16071301?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=CAN.+J.+BOT.%2FJ.+CAN.+BOT.&rft.atitle=Visualization%2C+adhesiveness%2C+and+cytochemistry+of+the+extracellular+matrix+produced+by+urediniospore+germ+tubes+of+Puccinia+sorghi+.&rft.au=Chaubal%2C+R%3BWilmot%2C+V+A%3BWynn%2C+W+K&rft.aulast=Chaubal&rft.aufirst=R&rft.date=1991-01-01&rft.volume=69&rft.issue=9&rft.spage=2044&rft.isbn=&rft.btitle=&rft.title=CAN.+J.+BOT.%2FJ.+CAN.+BOT.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Zea mays; urediniospores; germ tubes; adhesives; rust; leaves; glycoproteins ER - TY - JOUR T1 - Development of a specialized gypsy moth (Lepidoptera: Lymantriidae) management program for suburban parks. AN - 16070846; 2636377 AB - A specialized gypsy moth, Lymantria dispar (L.) management program was designed for use in urban-suburban parks and other wooded public lands. A guide based on number and size of egg masses, host susceptibility, and previous defoliation was developed to assist in making treatment decisions. One or two applications of Bacillus thuringiensis Berliner (subspecies kurstaki ) (40 billion international units per ha) or one application of diflubenzuron (Dimilin) were applied at 28 g (AI)/ha with the goal of preventing > 30% defoliation in any part of a management unit. Land managers selected the control material used. The trial program was implemented in six management units including one county park in 1988, and four parks and the Beltsville Agricultural Research Center (BARC) in 1989. B. thuringiensis was applied once to 993 ha of park land and 812 ha at BARC; diflubenzuron was applied once to 176 ha at BARC. JF - Journal of Economic Entomology AU - Webb, R E AU - Ridgway, R L AU - Thorpe, K W AU - Tatman, K M AU - Wieber, A M AU - Venables, L AD - Beltsville Agric. Res. Cent., USDA-ARS, Build. 402, BARC-E, Beltsville, MD 20705, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1320 EP - 1328 VL - 84 IS - 4 SN - 0022-0493, 0022-0493 KW - Lymantria dispar KW - var.kurstaki KW - diflubenzuron KW - Bacillus thuringiensis KW - Bacillus thuringiensis kurstaki KW - Lepidoptera KW - Lymantriidae KW - control programs KW - growth regulators KW - suburban environments KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Biotechnology and Bioengineering Abstracts; Entomology Abstracts KW - USA, Maryland KW - A 01014:Others KW - W 30513:Pest control KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16070846?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Development+of+a+specialized+gypsy+moth+%28Lepidoptera%3A+Lymantriidae%29+management+program+for+suburban+parks.&rft.au=Webb%2C+R+E%3BRidgway%2C+R+L%3BThorpe%2C+K+W%3BTatman%2C+K+M%3BWieber%2C+A+M%3BVenables%2C+L&rft.aulast=Webb&rft.aufirst=R&rft.date=1991-01-01&rft.volume=84&rft.issue=4&rft.spage=1320&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Bacillus thuringiensis; Bacillus thuringiensis kurstaki; Lymantriidae; Lepidoptera; USA, Maryland; suburban environments; control programs; growth regulators ER - TY - JOUR T1 - Field acetylene reduction rates of Lupinus argenteus along an elevational gradient. AN - 16070436; 2637065 AB - The effects of elevation and environmental parameters associated with elevation on the dinitrogen fixation rates, N sub(2)(C sub(2)H sub(2)), of a North American lupine species were evaluated. Lupinus argenteus) Pursh plants growing at five elevations of Francis Peak, Utah, were sampled weekly throughout the growing season. The highest elevation site had the greatest frequency of nodulated plants. Influence of the environmental and physiological variables on fixation activity varied with elevation and the means time of sampling. Soil moisture, nodule dry weight, and air temperature were important. Less than one-half of the observed variation in fixation rates, N sub(2)(C sub(2)H sub(2)), was accounted for by variation in the associated independent variables. Nevertheless this study documented that nodulated plants of L. argenteus) were capable of actively fixing nitrogen at a range of elevations on Francis Peak. JF - Great Basin Naturalist AU - Rumbaugh, MD AU - Johnson, DA AD - USDA-Agric. Res. Serv., Forage and Range Res. Lab., Utah State Univ., Logan, UT 84322-6300, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 192 EP - 197 VL - 51 IS - 2 SN - 0017-3614, 0017-3614 KW - Lupinus argenteus KW - environmental factors KW - gradients KW - nodulation KW - nodules KW - soil temperature KW - USA, Utah KW - Ecology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - altitude KW - soil moisture KW - Rhizobium lupini KW - nitrogen fixation KW - acetylene reduction KW - A 01051:Nitrogen cycle KW - J 02901:Soil and plants KW - D 04637:Legumes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16070436?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Great+Basin+Naturalist&rft.atitle=Field+acetylene+reduction+rates+of+Lupinus+argenteus+along+an+elevational+gradient.&rft.au=Rumbaugh%2C+MD%3BJohnson%2C+DA&rft.aulast=Rumbaugh&rft.aufirst=MD&rft.date=1991-01-01&rft.volume=51&rft.issue=2&rft.spage=192&rft.isbn=&rft.btitle=&rft.title=Great+Basin+Naturalist&rft.issn=00173614&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Rhizobium lupini; nitrogen fixation; acetylene reduction; altitude; soil moisture ER - TY - JOUR T1 - Epoxyexserohilone, a novel metabolite from Nigrospora sphaerica . AN - 16068211; 2635673 AB - Fermentation of Nigrospora sphaerica on shredded wheat medium generated the novel metabolite, epoxyexserohilone, a congener of the known phytotoxin, exserohilone. Single crystal X-ray diffraction determined the structure and absolute stereochemistry of this metabolite which had the molecular formula C20H22N2OS2, melting point 190-192 degree C, and an EI-MS identical with its congener exserohilone. The metabolite did not exhibit biological activity in an etiolated wheat coleoptile bioassay, neither was it active against Gram-positive or Gram-negative bacteria. JF - Agricultural and Biological Chemistry AU - Cutler, H G AU - Hoogsteen, K AU - Littrell, R H AU - Arison, B H AD - USDA, ARS, Richard B. Russell Cent., P.O. Box 5677, Athens, GA 30613, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 2037 EP - 2042 VL - 55 IS - 8 SN - 0002-1369, 0002-1369 KW - epoxyexserohilone KW - metabolites KW - comparison KW - Nigrospora sphaerica KW - exserohilone KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - phytotoxins KW - A 01008:Steroids & hormones KW - K 03035:Fungi UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16068211?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Agricultural+and+Biological+Chemistry&rft.atitle=Epoxyexserohilone%2C+a+novel+metabolite+from+Nigrospora+sphaerica+.&rft.au=Cutler%2C+H+G%3BHoogsteen%2C+K%3BLittrell%2C+R+H%3BArison%2C+B+H&rft.aulast=Cutler&rft.aufirst=H&rft.date=1991-01-01&rft.volume=55&rft.issue=8&rft.spage=2037&rft.isbn=&rft.btitle=&rft.title=Agricultural+and+Biological+Chemistry&rft.issn=00021369&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - phytotoxins ER - TY - JOUR T1 - Comparative growth and propagule production by Hydrilla verticillata grown from axillary turions or subterranean turions. AN - 16067964; 2630690 AB - Hydrilla verticillata produces two types of vegetative propagules, subterranean turions and axillary turions. After 8 or 12 weeks growth under similar conditions, plants grown from subterranean turions weighted 1.7 to 2 times as much as plants grown from axillary turions. Subterranean turion-derived plants produced more propagules (by weight and number) per plant than plants from axillary turions. Characteristics of weight frequency distributions (median, minimum, maximum, and coefficient of variation) for new subterranean turions were also influenced by the type of propagule from which the parent plant was derived. The number of root crowns per plant which reflects the plant's ability to expand horizontally was significantly greater for subterranean turion-derived plants (by 2 times) than for plants from axillary turions. Results support the hypothesis that following colonization of an area the impact of H. verticillata on resident species changes over time. JF - Hydrobiologia AU - Spencer, D F AU - Ksander, G G AD - USDA/ARS Aquat. Weed Control Res. Lab., Univ. California, Davis, CA 95616-8537, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 153 EP - 158 VL - 222 IS - 2 SN - 0018-8158, 0018-8158 KW - aquatic plants KW - freshwater weeds KW - propagules KW - turions KW - vegetative reproduction KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Freshwater KW - Hydrilla verticillata KW - colonization KW - growth KW - D 04640:Other angiosperms KW - Q1 08424:Age and growth KW - Q1 08224:Reproduction and development KW - Q1 08485:Species interactions: pests and control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16067964?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrobiologia&rft.atitle=Comparative+growth+and+propagule+production+by+Hydrilla+verticillata+grown+from+axillary+turions+or+subterranean+turions.&rft.au=Spencer%2C+D+F%3BKsander%2C+G+G&rft.aulast=Spencer&rft.aufirst=D&rft.date=1991-01-01&rft.volume=222&rft.issue=2&rft.spage=153&rft.isbn=&rft.btitle=&rft.title=Hydrobiologia&rft.issn=00188158&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - turions; freshwater weeds; colonization; growth; propagules; Hydrilla verticillata; Freshwater ER - TY - JOUR T1 - Biomass response mechanisms of understory species the first year after prescribed burning in an Arizona ponderosa-pine community. AN - 16067752; 2631481 AB - Species-specific biomass and density responses were determined for three grasses and two shrubs in a northern Arizona ponderosa-pine (Pinus ponderosa ) forest one year following a prescribed burn. Sources of response were determined by monitoring changes in surviving plants as well as contributions by new seedlings and sprouts. Results are reported for four overstory types (open sawtimber sites, below-canopy sawtimber sites, and pole and sapling patches). Responses varied among species and within species by overstory type. Sitanion hystrix showed a positive biomass response to prescribed burning in the open sawtimber sites, due to increased growth of surviving plants and a large influx of seedlings. In contrast, in the pole patches, where fire severity was high, S. hystrix had a high mortality and low colonization, but maintained its pre-burn biomass levels through increased growth of surviving plants. JF - Forest Ecology and Management AU - Vose, J M AU - White, A S AD - USDA Forest Serv., Coweeta Hydrol. Lab., Otto, NC 28763, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 175 EP - 187 VL - 40 IS - 3-4 SN - 0378-1127, 0378-1127 KW - biomass KW - Ecology Abstracts KW - forests KW - revegetation KW - Pinus ponderosa KW - USA, Arizona KW - burning KW - species diversity KW - D 04125:Temperate forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16067752?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Biomass+response+mechanisms+of+understory+species+the+first+year+after+prescribed+burning+in+an+Arizona+ponderosa-pine+community.&rft.au=Vose%2C+J+M%3BWhite%2C+A+S&rft.aulast=Vose&rft.aufirst=J&rft.date=1991-01-01&rft.volume=40&rft.issue=3-4&rft.spage=175&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinus ponderosa; USA, Arizona; burning; revegetation; species diversity; forests ER - TY - JOUR T1 - Quantity and timing of needlefall in N and P fertilized loblolly pine stands. AN - 16067225; 2631554 AB - Needlefall quantity and timing were examined for 1.5 years on three loblolly pine (Pinus taeda L.) stands from a nitrogen (N) and phosphorus (P) fertilization field study. Needlefall biomass increased following N fertilization on the two N-deficient stands. Needlefall biomass increased by as much as 75% (from 2088 to 3660 kg ha super(-1) year super(-1)) on one of these stands, but on average increases were about 30%. On a high N quality stand, there was no needlefall biomass response to N fertilization. Phosphorus had no effect on needlefall biomass in any of the three stands. Across all stands, needlefall biomass was unrelated to stocking (as measured by basal area), but significantly correlated (r super(2) = 0.53; P < 0.05) with foliar percent N. We hypothesized accelerated needlefall as a result of moisture stress during very dry periods in 1985 and 1986, particularly on plots which increased foliar biomass (and hence needlefall biomass) after N fertilization. JF - Forest Ecology and Management AU - Vose, J M AU - Allen, H L AD - USDA For. Serv. Coweeta Hydrol. Lab., 999 Coweeta Laboratory Rd., Otto, NC 28763, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 205 EP - 219 VL - 41 IS - 3-4 SN - 0378-1127, 0378-1127 KW - nutrient enrichment KW - needlefall KW - nitrogen KW - phosphorus KW - Ecology Abstracts KW - biomass KW - Pinus taeda KW - soil moisture KW - D 04635:Conifers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16067225?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Quantity+and+timing+of+needlefall+in+N+and+P+fertilized+loblolly+pine+stands.&rft.au=Vose%2C+J+M%3BAllen%2C+H+L&rft.aulast=Vose&rft.aufirst=J&rft.date=1991-01-01&rft.volume=41&rft.issue=3-4&rft.spage=205&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinus taeda; biomass; soil moisture ER - TY - CONF T1 - A simple method for estimating gross carbon budgets for vegetation in forest ecosystems. AN - 16066920; 2631517 AB - Gross carbon budgets for vegetation in forest ecosystems are difficult to construct because of problems in scaling flux measurements made on small samples over short periods of time and in determining belowground carbon allocation. Recently, empirical relationships have been developed to estimate total belowground carbon allocation from litterfall, and maintenance respiration from tissue nitrogen content. I outline a method for estimating gross carbon budgets using these empirical relationships together with data readily available from ecosystem studies (aboveground wood and canopy production, aboveground wood and canopy biomass, litterfall, and tissue nitrogen contents). Estimates generated with this method are compared with annual carbon fixation estimates from the Forest-BGC model for a lodgepole pine (Pinus contorta Dougl.) and a Pacific silver fir (Abies amabilis Dougl.) chronosequence. JF - Tree Physiology AU - Ryan, M G Y1 - 1991 PY - 1991 DA - 1991 SP - 255 EP - 266 VL - 9 IS - 1-2 KW - nutrient balance KW - models KW - carbon KW - Ecology Abstracts KW - forests KW - Pinus contorta KW - vegetation KW - Abies amabilis KW - D 04003:Modeling, mathematics, computer applications KW - D 04125:Temperate forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16066920?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tree+Physiology&rft.atitle=A+simple+method+for+estimating+gross+carbon+budgets+for+vegetation+in+forest+ecosystems.&rft.au=Ryan%2C+M+G&rft.aulast=Ryan&rft.aufirst=M&rft.date=1991-01-01&rft.volume=9&rft.issue=1-2&rft.spage=255&rft.isbn=&rft.btitle=&rft.title=Tree+Physiology&rft.issn=0829318X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Codling moth (Lepidoptera: Tortricidae) control on commercial walnuts with a granulosis virus. AN - 16066783; 2635242 AB - Commercially produced, experimental lots of codling moth, Cydia pomonella (L.), granulosis virus (CMGV) formulations were field-tested for control of codling moth larvae on commercial walnuts. Because it has little or no effect on beneficial species and probably would not disturb the control of the walnut aphid, Chromaphis juglandicola (Kaltenbach), by the parasite Trioxys pallidus (Haliday), CMGV was evaluated in 1980-1983 in Kings, Tulare, and Yolo counties in California. In 1980, control of codling moth by CMGV was similar to that of conventional insecticides (e.g., 80%). However, a maximum of 60% control was obtained in 1982. The level of control obtained in 1982 was lower than that suggested by the residue studies. In 1983, control was equivalent to that of a chemical insecticide standard, but control depended upon application timing. JF - Journal of Economic Entomology AU - Vail, P V AU - Barnett, W AU - Cowan, D C AU - Sibbett, S AU - Beede, R AU - Tebbets, J S AD - Commod. Prot. and Quarantine Insect Res. Unit, Hortic. Crops Res. Lab., USDA-ARS, 2021 S. Peach Ave., Fresno, CA 93727, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1448 EP - 1453 VL - 84 IS - 5 SN - 0022-0493, 0022-0493 KW - Cydia pomonella KW - Juglans KW - Lepidoptera KW - Tortricidae KW - biological control KW - granulosis virus KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Virology & AIDS Abstracts; Entomology Abstracts KW - USA, California KW - A 01014:Others KW - V 22160:Viral infections of invertebrates KW - W 30513:Pest control KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16066783?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Codling+moth+%28Lepidoptera%3A+Tortricidae%29+control+on+commercial+walnuts+with+a+granulosis+virus.&rft.au=Vail%2C+P+V%3BBarnett%2C+W%3BCowan%2C+D+C%3BSibbett%2C+S%3BBeede%2C+R%3BTebbets%2C+J+S&rft.aulast=Vail&rft.aufirst=P&rft.date=1991-01-01&rft.volume=84&rft.issue=5&rft.spage=1448&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - granulosis virus; Juglans; Tortricidae; Lepidoptera; USA, California; biological control ER - TY - JOUR T1 - Biomass, structure, and trophic environment of peatland vegetation in Minnesota. AN - 16066418; 2630689 AB - The structure of peatland vegetation in Minnesota is affected by trophic conditions, the soil-water regime, and the disturbance history. Trophic conditions have a major effect on the species composition. Structurally, this results in the exclusion of most tall shrubs, hardwood trees, and forbs from ombrotrophic sites and a greater biomass of mosses and ericad shrubs on those sites than on minerotrophic sites. Classification of peatland vegetation into physiognomic groups provides reasonable estimates of total aboveground biomass. Trophic conditions per se, however, have a minor effect on aboveground biomass; on both ombrotrophic and minerotrophic peatlands, biomass increases from less than 10 Mg/ha on the wettest sites to over 100 Mg/ha on the driest, undisturbed sites. Peatland sites that have comparatively dry, well-aerated soils support dense forests if they have not recently been disturbed; shrubs dominate on those sites after disturbance. JF - Wetlands AU - Swanson, D K AU - Grigal, D F AD - USDA Soil Conserv. Serv., 1760 Westwood Way, Fairbanks, AK 99709, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 279 EP - 302 VL - 11 IS - 2 SN - 0277-5212, 0277-5212 KW - Minnesota KW - community structure KW - ecological associations KW - electrical conductivity KW - environmental factors KW - peatlands KW - plant populations KW - soils KW - trophic relationships KW - vegetation cover KW - water content KW - Health & Safety Science Abstracts; Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - community composition KW - trophic levels KW - biomass KW - Freshwater KW - pH KW - aquatic plants KW - USA, Minnesota KW - peat KW - ecosystem disturbance KW - Q1 08221:General KW - Q1 08482:Ecosystems and energetics KW - Q1 08463:Habitat community studies KW - D 04200:Wetlands KW - H SE1.23:FAUNA AND FLORA ECOLOGY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16066418?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wetlands&rft.atitle=Biomass%2C+structure%2C+and+trophic+environment+of+peatland+vegetation+in+Minnesota.&rft.au=Swanson%2C+D+K%3BGrigal%2C+D+F&rft.aulast=Swanson&rft.aufirst=D&rft.date=1991-01-01&rft.volume=11&rft.issue=2&rft.spage=279&rft.isbn=&rft.btitle=&rft.title=Wetlands&rft.issn=02775212&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - soils; environmental factors; community composition; trophic levels; electrical conductivity; biomass; aquatic plants; ecological associations; trophic relationships; peat; vegetation cover; ecosystem disturbance; water content; pH; peatlands; community structure; USA, Minnesota; Freshwater ER - TY - JOUR T1 - Isozyme comparisons for identification of Colletotrichum species pathogenic to strawberry. AN - 16065607; 2628949 AB - Presently there is uncertainty about the appropriate taxonomic classification of species of Colletotrichum infecting strawberry. Some workers consider C. fragariae part of the highly variable species C. gloeosporioides , whereas others feel they would be separate. The strawberry pathogens C. acutatum, C. fragariae , and C. gloeosporioides were successfully distinguished by means of comparing isozymes for 12 enzymes and 14 putative isozyme loci. The intraspecific coefficients of similarity (CS) based on the 12 enzymes and 14 loci were 1.00 for C. acutatum (maximum possible = 1.00), 1.00 for C. fragariae , and 0.80 for C. gloeosporioides . Intraspecific CS values indicated little variation in C. acutatum and C. fragariae ; however there was considerable variation in C. gloeosporioides . JF - Phytopathology AU - Bonde, M R AU - Peterson, G L AU - Maas, J L AD - USDA, Agric. Res. Serv., Foreign Dis.-Weed Sci. Res., Fort Detrick, Build. 1301, Frederick, MD 21702, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1523 EP - 1528 VL - 81 IS - 12 SN - 0331-949X, 0331-949X KW - Colletotrichum KW - pathogens KW - identification KW - isoenzymes KW - Colletotrichum fragariae KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Colletotrichum gloeosporioides KW - Fragaria ananassa KW - Colletotrichum acutatum KW - A 01028:Others KW - K 03089:Fungi: plant KW - K 03002:Fungi UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16065607?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Phytopathology&rft.atitle=Isozyme+comparisons+for+identification+of+Colletotrichum+species+pathogenic+to+strawberry.&rft.au=Bonde%2C+M+R%3BPeterson%2C+G+L%3BMaas%2C+J+L&rft.aulast=Bonde&rft.aufirst=M&rft.date=1991-01-01&rft.volume=81&rft.issue=12&rft.spage=1523&rft.isbn=&rft.btitle=&rft.title=Phytopathology&rft.issn=0331949X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Colletotrichum gloeosporioides; Colletotrichum acutatum; Fragaria ananassa ER - TY - JOUR T1 - Identification and directed biosynthesis of efrapeptins in the fungus Tolypocladium geodes Gams (Deuteromycotina: Hyphomycetes). AN - 16065237; 2620861 AB - HPLC analysis of crude dichloromethane extracts of shaken liquid cultures of the hyphomycetous fungus Tolypocladium geodes Gams revealed the presence of efrapeptins. These peptides, which have mitochondrial ATPase inhibitory activity as well as antifungal and insecticidal properties, are previously known only from the congeneric species, T. niveum Rostrup. The identity of efrapeptins was confirmed by fast atom bombardment mass spectrometry and by amino acid analysis. HPLC analyses of efrapeptins extracted from single isolates of both T. geodes and T. niveum indicated that both species produced the same efrapeptins but the profile of relative abundance of the compounds produced was diagnostic for the isolates examined. JF - Journal of Chemical Ecology AU - Krasnoff, S B AU - Gupta, S AD - USDA-ARS, U.S. Plant, Soil, and Nutr. Lab., Tower Rd., Ithaca, NY 14853, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1953 EP - 1962 VL - 17 IS - 10 SN - 0098-0331, 0098-0331 KW - Tolypocladium geodes KW - biosynthesis KW - purification KW - efrapeptins KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - K 03040:Fungi KW - A 01022:Mycotoxins KW - A 01095:Others UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16065237?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Identification+and+directed+biosynthesis+of+efrapeptins+in+the+fungus+Tolypocladium+geodes+Gams+%28Deuteromycotina%3A+Hyphomycetes%29.&rft.au=Krasnoff%2C+S+B%3BGupta%2C+S&rft.aulast=Krasnoff&rft.aufirst=S&rft.date=1991-01-01&rft.volume=17&rft.issue=10&rft.spage=1953&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Effect of thinning and deer browsing on breeding birds in New England oak woodlands. AN - 16065168; 2631657 AB - Over a 3-year period we compared the effects of forest thinning and white-tailed deer (Odocoileus virginianus ) browsing intensity on breeding birds in central Massachusetts oak (Quercus spp.) forests across 12 stands with dominant trees having a diameter at breast height greater than 27.9 cm. Unthinned stands with few deer had moderately dense woody understories and moderate ground cover; unthinned stands with many deer had sparse woody understories and little ground cover. Thinned stands with few deer had dense, tall woody understories and moderate ground cover; thinned stands with many deer had sparse wood understories and lush ground cover. Understory changes associated with high deer densities were apparently offset by effects of thinning so that thinned stands supported more breeding bird species. We recorded 65 species of birds; 28 occurred in all treatment classes. Thinned stands contained significantly more bird species than did unthinned stands. JF - Forest Ecology and Management AU - DeGraaf, R M AU - Healy, WM AU - Brooks, R T AD - USDA For. Serv., Northeast. For. Exp. Stn., Univ. Massachusetts, Amherst, MA 01003, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 179 EP - 191 VL - 41 IS - 3-4 SN - 0378-1127, 0378-1127 KW - browsing KW - Ecology Abstracts KW - forests KW - Aves KW - Odocoileus virginianus KW - thinning KW - USA, New England KW - reproduction KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16065168?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Effect+of+thinning+and+deer+browsing+on+breeding+birds+in+New+England+oak+woodlands.&rft.au=DeGraaf%2C+R+M%3BHealy%2C+WM%3BBrooks%2C+R+T&rft.aulast=DeGraaf&rft.aufirst=R&rft.date=1991-01-01&rft.volume=41&rft.issue=3-4&rft.spage=179&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Odocoileus virginianus; Aves; USA, New England; thinning; forests; reproduction ER - TY - CONF T1 - Interrelation between shoot characteristics and solar irradiance in the crown of Pinus contorta ssp. latifolia . AN - 16065100; 2631498 AB - In Pinus contorta Doug. ssp. latifolia (Engelm.) annual shoot length increment, annual foliage production per shoot, and the daily integral of photosynthetically active radiation (DPAR) at shoot tips increased with height in the crown, whereas leaf longevity decreased. There was a decrease in DPAR along the shoot from the tip to beyond the oldest leaves, and the value reached at the point just proximal to the oldest leaf cohort was the same for all shoots from all crown locations, regardless of the age of the oldest leaves. The results suggest that shoot elongation, leaf production and leaf retention are controlled by the light environment within the crown. Because high irradiance promotes leaf production and low irradiance promotes leaf shedding, foliage is not randomly distributed in the crown. JF - Tree Physiology AU - Schoettle, A W AU - Smith, W K Y1 - 1991 PY - 1991 DA - 1991 SP - 245 EP - 254 VL - 9 IS - 1-2 KW - irradiance KW - Ecology Abstracts KW - Pinus contorta latifolia KW - photosynthesis KW - sunlight KW - growth KW - D 04635:Conifers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16065100?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tree+Physiology&rft.atitle=Interrelation+between+shoot+characteristics+and+solar+irradiance+in+the+crown+of+Pinus+contorta+ssp.+latifolia+.&rft.au=Schoettle%2C+A+W%3BSmith%2C+W+K&rft.aulast=Schoettle&rft.aufirst=A&rft.date=1991-01-01&rft.volume=9&rft.issue=1-2&rft.spage=245&rft.isbn=&rft.btitle=&rft.title=Tree+Physiology&rft.issn=0829318X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Rainfastness of insecticide deposits on loblolly pine foliage and the efficacy of adjuvants in preventing washoff. AN - 16064970; 2631317 AB - The rainfastness of several insecticides on loblolly pine foliage was determined by using a laboratory rain chamber and by testing the foliage in bioassays with adult leaffooted pine seed bugs, Leptoglossus corculus (Say). Deposits of azinphosmethyl from 0.2% (AI) simulated sprays made from emulsifiable concentrates (EC's), (Guthion 2S and 2L), were highly susceptible to rainwashing. Regression analysis of these data showed a significant linear relationship between arcsin percent mortality and rainfall amount in cm (y = 68.08 - 6.88/(Rainfall)). Using the confidence intervals from the regression analysis, it was estimated that rainfall in excess of 1.42 cm would reduce mean seed bug mortality on treated foliage to an amount below 80% with 95% confidence, and likewise, rainfall in excess of 3.95 cm would reduce mean mortality to an amount below 50%. JF - Journal of Entomological Science AU - Nord, J C AU - Pepper, W D AD - Southeast. Forest Exp. Stn., USDA-FS, Athens, GA 30602, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 287 EP - 298 VL - 26 IS - 2 SN - 0749-8004, 0749-8004 KW - Pinus taeda KW - leaves KW - longevity KW - rain KW - pesticide applications KW - Heteroptera KW - Pollution Abstracts; Health & Safety Science Abstracts; Entomology Abstracts KW - Coreidae KW - insecticides KW - Leptoglossus corculus KW - rainfall KW - bioassays KW - mortality KW - P 9000:ENVIRONMENTAL ACTION KW - H SE5.20:INSECTICIDES KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16064970?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Entomological+Science&rft.atitle=Rainfastness+of+insecticide+deposits+on+loblolly+pine+foliage+and+the+efficacy+of+adjuvants+in+preventing+washoff.&rft.au=Nord%2C+J+C%3BPepper%2C+W+D&rft.aulast=Nord&rft.aufirst=J&rft.date=1991-01-01&rft.volume=26&rft.issue=2&rft.spage=287&rft.isbn=&rft.btitle=&rft.title=Journal+of+Entomological+Science&rft.issn=07498004&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Leptoglossus corculus; Coreidae; rainfall; insecticides; bioassays; mortality; pesticide applications ER - TY - JOUR T1 - Symptom expression among half-sib slash pine progenies after inoculation with Cronartium quercuum f.sp. fusiforme . AN - 16062379; 2621118 AB - Half-sib progeny from 106 slash pine (Pinus elliottii Engelm. var. elliottii ) trees in a rust-resistant orchard were inoculated with fusiform rust (Cronartium quercuum (Berk.) Miyabe ex Shirai f.sp. fusiforme ) using the concentrated basidiospore spray system. Mass susceptible seedlings served as the control in each of the five inoculations needed to screen the 106 families. Relative susceptibility compared with the control was determined by the percentage of seedlings with galls 6 or 9 months after inoculation. According to the 0.70 disease ratio computation (percentage with galls in the test family divided by percentage with galls in the susceptible control less than or equal to 0.70), 59 of the 106 families were resistant. The 0.70 disease ratio was more conservative at designating families as resistant than Fisher's least significant difference test (67 of 106 resistant), but was more liberal than Tukey's honestly significantly different test (42 of 106 resistant). Other symptoms of infection were recorded to determine frequency of occurrence. JF - CAN. J. FOR. RES./J. CAN. RECH. FOR. AU - Kuhlman, E G AU - Powers, HR Jr AD - USDA Forest Serv., For. Sci. Lab., Green St., Athens, GA 30602, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 612 EP - 615 VL - 21 IS - 5 KW - Cronartium quercuum KW - f.sp.fusiforme KW - pathogenesis KW - pathology KW - progeny KW - plantations KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - disease resistance KW - Pinus elliottii KW - fusiform rust KW - plant breeding KW - K 03089:Fungi: plant KW - A 01045:Diseases & treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16062379?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.atitle=Symptom+expression+among+half-sib+slash+pine+progenies+after+inoculation+with+Cronartium+quercuum+f.sp.+fusiforme+.&rft.au=Kuhlman%2C+E+G%3BPowers%2C+HR+Jr&rft.aulast=Kuhlman&rft.aufirst=E&rft.date=1991-01-01&rft.volume=21&rft.issue=5&rft.spage=612&rft.isbn=&rft.btitle=&rft.title=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinus elliottii; fusiform rust; disease resistance; plant breeding ER - TY - JOUR T1 - Developmental toxicology of potato alkaloids in the frog embryo teratogenesis assay - Xenopus (FETAX). AN - 16061282; 2615507 AB - Potatoes frequently contain growth inhibitors and toxic compounds including digestive enzyme inhibitors, lectins and glycoalkaloids. The literature suggests that Solanum alkaloids have the ability to induce neurological damage such as spina bifida and other malformations. As part of a programme of improvement in the safety of potatoes using molecular plant genetics and parallel food safety evaluation, we evaluated the effect of several potato glycoalkaloids and aglycones in the frog embryo teratogenesis assay - Xenopus (FETAX) with and without metabolic activation by Aroclor 1254-induced rat liver microsomes. The data suggest that the glycoalkaloid alpha -chaconine is teratogenic and more embryotoxic than alpha -solanine, in terms of the median lethal concentration (LC sub(50)) after 96 hr of exposure, the concentration inducing gross terata in 50% of the surviving frog embryos (96-hr EC sub(50), malformation), and the minimum concentration needed to inhibit the growth of the embryos. JF - Food and Chemical Toxicology AU - Friedman, M AU - Rayburn, J R AU - Bantle, JA AD - Food Saf. Res. Unit, USDA-ARS West. Reg. Res. Cent., 800 Buchanan St., Albany, CA 94710, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 537 EP - 547 VL - 29 IS - 8 SN - 0278-6915, 0278-6915 KW - potatoes KW - development KW - alkaloids KW - Health & Safety Science Abstracts; Pollution Abstracts; Toxicology Abstracts KW - teratogenesis KW - Freshwater KW - toxicity KW - Solanum tuberosum KW - Xenopus KW - teratogenicity KW - X 24120:Food, additives & contaminants KW - P 5000:LAND POLLUTION KW - H SE2.20:CROP CONTAMINATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16061282?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Food+and+Chemical+Toxicology&rft.atitle=Developmental+toxicology+of+potato+alkaloids+in+the+frog+embryo+teratogenesis+assay+-+Xenopus+%28FETAX%29.&rft.au=Friedman%2C+M%3BRayburn%2C+J+R%3BBantle%2C+JA&rft.aulast=Friedman&rft.aufirst=M&rft.date=1991-01-01&rft.volume=29&rft.issue=8&rft.spage=537&rft.isbn=&rft.btitle=&rft.title=Food+and+Chemical+Toxicology&rft.issn=02786915&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Xenopus; Solanum tuberosum; toxicity; teratogenicity; teratogenesis; Freshwater ER - TY - JOUR T1 - Paired-tree study suggests 20-year recurrent slash pine blight. AN - 16059685; 2615632 AB - In the late winter of 1988, pairs of slash pine (Pinus elliottii Engelm.) trees were chosen and marked on the Harrison Experimental Forest in Gulfport, Mississippi. One tree of each pair had a blight and the associated fungi Lophodermella cerina Darker on all mature needles, while the other tree had healthy needles. The blight recurred on the same study trees in 1989 and 1990. Analysis of tree cores shows that the blighted member of each pair has had less radial growth than the clean (nonblighted) pair member since about 1971, when a severe needle blight occurred throughout the slash pine region. It appears that the needle blight is causing growth loss and possibly a genetic narrowing of the slash pine resource. The evidence suggests that the most severe occurrence of the blight is near metropolitan areas of the Gulf coast. JF - CAN. J. FOR. RES./J. CAN. RECH. FOR. AU - Van Deusen, PC AU - Snow, G A AD - USDA For. Serv., Southern For. Exp. Stn., 701 Loyola Ave., New Orleans, LA 70113, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1145 EP - 1148 VL - 21 IS - 7 KW - Pinus elliottii KW - recurrent infection KW - growth rate KW - Lophodermella cerina KW - Ecology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - needle blight KW - D 04635:Conifers KW - K 03089:Fungi: plant KW - A 01045:Diseases & treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16059685?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.atitle=Paired-tree+study+suggests+20-year+recurrent+slash+pine+blight.&rft.au=Van+Deusen%2C+PC%3BSnow%2C+G+A&rft.aulast=Van+Deusen&rft.aufirst=PC&rft.date=1991-01-01&rft.volume=21&rft.issue=7&rft.spage=1145&rft.isbn=&rft.btitle=&rft.title=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - needle blight ER - TY - JOUR T1 - Comparison of monterey pine stress in urban and natural forests. AN - 16058223; 2621736 AB - Monterey pine street trees within Carmel, California and its immediate vicinity, as well as forest-grown Monterey pine within adjacent natural stands, were sampled with regard to visual stress characteristics, and various environmental and biological variables. Two stress indices were computed, one hypothesized before data collection was based on relative foliage retention and color; the other was derived through principal component analysis of 10 visual stress characteristics. Both indices were highly correlated (r = 0 multiplied by 89). The more closed and generally denser forest stands led to increased plant competition that induced higher levels of stress for forest trees less than 50 cm in diameter when compared with urban street trees of comparable diameters. Urban tree stress generally increased with tree size due to increased internal shading of branches and loss of shade tolerance associated with aging. Differences in stress levels and stress factors are discussed from the standpoint of landscape ecology and implications for tree management are presented. JF - Journal of Environmental Management AU - Nowak, D J AU - McBride, J R AD - USDA Forest Serv., Northeastern Forest Exp. Stn., c/o 5 Moon Lib., State Univ. New York, Coll. Environ. Sci. and For., Syrause, NY 13210, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 383 EP - 395 VL - 32 IS - 4 SN - 0301-4797, 0301-4797 KW - environmental stress KW - urban environments KW - California, Carmel KW - urban areas KW - Health & Safety Science Abstracts; Ecology Abstracts KW - forests KW - Pinus radiata KW - USA, California, Carmel KW - H SE1.20:FORESTRY KW - D 04635:Conifers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16058223?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Management&rft.atitle=Comparison+of+monterey+pine+stress+in+urban+and+natural+forests.&rft.au=Nowak%2C+D+J%3BMcBride%2C+J+R&rft.aulast=Nowak&rft.aufirst=D&rft.date=1991-01-01&rft.volume=32&rft.issue=4&rft.spage=383&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Management&rft.issn=03014797&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinus radiata; USA, California, Carmel; forests; urban areas; urban environments ER - TY - JOUR T1 - Oxidation of methoxybenzenes by manganese peroxidase and by Mn super(3+). AN - 16057811; 2621827 AB - Manganese peroxidase, produced by some white-rot fungi during lignin degradation, catalyzes the oxidation of Mn super(2+) to Mn super(3+). Whereas Mn super(3+) is known to oxidize phenolic compounds, its role in lignin degradation is not clear. We have used a series of methoxybenzenes with E sub(1/2) values of 1.76-0.81 V (vs saturated calomel electrode) to investigate the oxidizing ability of Mn super(3+) chelates generated chemically and enzymatically. Although lignin peroxidase has been shown to oxidize high potential congeners, our results show that manganese peroxidase, or physiological concentrations of Mn super(3+), oxidize only the lower potential congeners. JF - Archives of Biochemistry and Biophysics AU - Popp, J L AU - Kirk, T K AD - Inst. Microb. and Biochem. Technol., USDA For. Serv., For. Prod. Lab., One Gifford Pinchot Dr., Madison, WI 53705-2398, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 145 EP - 148 VL - 288 IS - 1 SN - 0003-9861, 0003-9861 KW - Phanerochaete chrysosporium KW - degradation KW - enzymatic activity KW - kinetics KW - lignin KW - manganese KW - manganese peroxidase KW - methoxybenzene KW - oxidation KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16057811?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Archives+of+Biochemistry+and+Biophysics&rft.atitle=Oxidation+of+methoxybenzenes+by+manganese+peroxidase+and+by+Mn+super%283%2B%29.&rft.au=Popp%2C+J+L%3BKirk%2C+T+K&rft.aulast=Popp&rft.aufirst=J&rft.date=1991-01-01&rft.volume=288&rft.issue=1&rft.spage=145&rft.isbn=&rft.btitle=&rft.title=Archives+of+Biochemistry+and+Biophysics&rft.issn=00039861&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Expression of the two isoforms of spinach ribulose 1,5-bisphosphate carboxylase activase and essentiality of the conserved lysine in the consensus nucleotide-binding domain. AN - 16057585; 2622491 AB - The two isoforms of ribulose 1,2-bisphosphate carboxylase activase (Rbu-P sub(2) carboxylase) from spinach (Spinacea oleracea) L.) were individually purified from Escherichia coli transformed with expression vectors for the appropriate cDNAs. Both isoforms catalyzed activation of Rbu-P sub(2) carboxylase (ribulose 1,5-bisphosphate carboxylase/oxygenase, EC 4.1.1.39) and ATP hydrolysis. The kinetics of the two isoforms with respect to ATP concentration were different, in that the 45-kDa polypeptide exhibited a sigmoidal response while a rectangular response was observed with the 41-kDa isoform. These observations suggest that the additional domain at the C terminus of the 45-kDa isoform modulates the ATP regulation of activity. JF - Journal of Biological Chemistry AU - Sehn, J B AU - Orozco, EM Jr AU - Ogren, W L AD - USDA/ARS, Univ. Illinois, 1102 S. Goodwin Ave., Urbana, IL 61801, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 8963 EP - 8968 VL - 266 IS - 14 SN - 0021-9258, 0021-9258 KW - ATP KW - Escherichia coli KW - Spinacia oleracea KW - binding KW - domains KW - enzymatic activity KW - expression KW - isoforms KW - kinetics KW - ribulose-bisphosphate carboxylase KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16057585?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Biological+Chemistry&rft.atitle=Expression+of+the+two+isoforms+of+spinach+ribulose+1%2C5-bisphosphate+carboxylase+activase+and+essentiality+of+the+conserved+lysine+in+the+consensus+nucleotide-binding+domain.&rft.au=Sehn%2C+J+B%3BOrozco%2C+EM+Jr%3BOgren%2C+W+L&rft.aulast=Sehn&rft.aufirst=J&rft.date=1991-01-01&rft.volume=266&rft.issue=14&rft.spage=8963&rft.isbn=&rft.btitle=&rft.title=Journal+of+Biological+Chemistry&rft.issn=00219258&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Hepatic ornithine decarboxylase induction by potato glycoalkaloids in rats. AN - 16055040; 2623751 AB - The induction of hepatic ornithine decarboxylase (ODC) activity in rat livers by the potato glycoalkaloids alpha -solanine, alpha -chaconine, and their aglycone solanidine, has been studied. Ip administration of alpha -solanine at 7.5, 15 and 30 mg/kg body weight produced markedly elevated enzyme activity at 4 hr after treatment, with a linear dose response. The increase was four-fold at the lowest dose administered to 12-fold at the highest. ODC activity was measured at 1, 2, 3, 4, 5, 6, 8 and 24 hr after alpha -solanine was given. A statistically significant increase in enzyme activity was evident at 3 hr after treatment; maximal activity occurred at 5 hr and was approximately 12 times greater than the dimethylsulphoxide (DMSO) control level. Elevated activities persisted for several hours, decreasing to about one-third of the maximal level at 8 hr. The relative effects of alpha -solanine, alpha -chaconine and solanidine on ODC activities were studied at 4 hr using an equimolar dose of 17 mM/kg body weight. ODC activity induced by alpha -chaconine was higher than that induced by alpha -solanine; the latter activity was two-thirds that of the former. JF - Food and Chemical Toxicology AU - Caldwell, KA AU - Grosjean, OK AU - Henika, PR AU - Friedman, M AD - Food Saf. Res. Unit, Western Reg. Res. Cent., Agric. Res. Serv., USDA, Albany, CA 94710, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 531 EP - 535 VL - 29 IS - 8 SN - 0278-6915, 0278-6915 KW - potatoes KW - induction KW - glycoalkaloids KW - ornithine decarboxylase KW - rats KW - Toxicology Abstracts KW - Solanum tuberosum KW - liver KW - X 24120:Food, additives & contaminants KW - X 24172:Plants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16055040?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Food+and+Chemical+Toxicology&rft.atitle=Hepatic+ornithine+decarboxylase+induction+by+potato+glycoalkaloids+in+rats.&rft.au=Caldwell%2C+KA%3BGrosjean%2C+OK%3BHenika%2C+PR%3BFriedman%2C+M&rft.aulast=Caldwell&rft.aufirst=KA&rft.date=1991-01-01&rft.volume=29&rft.issue=8&rft.spage=531&rft.isbn=&rft.btitle=&rft.title=Food+and+Chemical+Toxicology&rft.issn=02786915&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Solanum tuberosum; liver ER - TY - JOUR T1 - Prospects for a classical biological control project against purple loosestrife (Lythrum salicaria L.). AN - 16054447; 2617943 AB - Purple loosestrife, Lythrum salicaria , was introduced into North America from Europe at the beginning of the nineteenth century. The plant has progressively spread westward and now occurs throughout the northern half of the United States and southern Canada. It aggressively invades wetlands and displaces native vegetation. The high cost and transitory nature of various chemical and cultural control methods have led to the development of a classical biological control program against purple loosestrife. Research has shown that three phytophagous European insects - a weevil, Hylobius transversovittatus , and two leaf beetles, Galerucella calmariensis and G. pusilla - are very host-specific and highly damaging to the plant. These insects are being considered for release into North America in an attempt to control L. salicaria . If these insects are as effective as research indicates, the outlook for successful classical biological control against purple loosestrife is excellent. JF - Natural Areas Journal AU - Hight, S D AU - Drea, JJ Jr AD - Insect Biocontrol Lab., PSI, Agric. Res. Serv., USDA, 10300 Baltimore Ave., BARC-E., Build. 406, Beltsville, MD 20705-2350, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 151 EP - 157 VL - 11 IS - 3 SN - 0885-8608, 0885-8608 KW - Lythrum salicaria KW - Insecta KW - biological control KW - control programs KW - Biotechnology and Bioengineering Abstracts; Ecology Abstracts; Entomology Abstracts KW - North America KW - W 30513:Pest control KW - Z 05207:Agricultural & general applied entomology KW - D 04710:Control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16054447?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Natural+Areas+Journal&rft.atitle=Prospects+for+a+classical+biological+control+project+against+purple+loosestrife+%28Lythrum+salicaria+L.%29.&rft.au=Hight%2C+S+D%3BDrea%2C+JJ+Jr&rft.aulast=Hight&rft.aufirst=S&rft.date=1991-01-01&rft.volume=11&rft.issue=3&rft.spage=151&rft.isbn=&rft.btitle=&rft.title=Natural+Areas+Journal&rft.issn=08858608&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Insecta; North America; biological control; control programs ER - TY - JOUR T1 - Aestivation and phenology of the Hessian fly (Diptera: Cecidomyiidae) in Indiana. AN - 16052829; 2617961 AB - In the northern part of its range in North America, the Hessian fly, Mayetiola destructor (Say), has one generation each year and overwinters in diapause. In the southern part of its range, it may have six generations each year, and does not overwinter in diapause; however, its summer development is interrupted by an aestival period. Between these two extremes, the number of generations varies with geographical location and prevailing climatic conditions, and the species usually diapauses and aestivates each year. Laboratory aestivation can be induced by high temperatures (daily thermocycles ranging from 17 to 36 degree C), and terminated by exposure to four or more consecutive days at 21.1 degree C. Diapause was terminated at 21.1 degree C in about the same number of days of exposure to daylengths of 8:16 or 16:8 (L:D), suggesting that photoperiod is less important than temperature. JF - Environmental Entomology AU - Wellso, S G AD - Insect and Weed Control Res. Unit, USDA-ARS, Dep. Entomol., Purdue Univ., West Lafayette, IN 47907, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 795 EP - 801 VL - 20 IS - 3 SN - 0046-225X, 0046-225X KW - Mayetiola destructor KW - Ecology Abstracts; Entomology Abstracts KW - USA, Indiana KW - aestivation KW - phenology KW - Diptera KW - Cecidomyiidae KW - Z 05197:Habits & life histories KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16052829?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Aestivation+and+phenology+of+the+Hessian+fly+%28Diptera%3A+Cecidomyiidae%29+in+Indiana.&rft.au=Wellso%2C+S+G&rft.aulast=Wellso&rft.aufirst=S&rft.date=1991-01-01&rft.volume=20&rft.issue=3&rft.spage=795&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Cecidomyiidae; Diptera; USA, Indiana; phenology; aestivation ER - TY - JOUR T1 - 3-Oxoecdysteroid 3 beta -reductase in various organs of the European corn borer, Ostrinia nubilalis (Hubner). AN - 16052360; 2619909 AB - Extracts of brains, subesophageal ganglia, Malpighian tubules, mandibular glands, proctodaea, salivary glands, testes, and fat body from mature fifth-stage European corn borer larvae contain a 3-oxoecdysteroid 3 beta -reductase that converts 3-dehydroecdysone to an RIA-detectable ecdysteroid that has the same retention time (on HPLC and TLC) as ecdysone. Enzyme activity is destroyed by boiling, exposure to organic solvents, and treatment with trypsin. The reductase has a molecular weight in the range of 24-37 kD and is dependent upon the presence of NADPH for activity. Under the conditions utilized here, subesophageal ganglia, proctodaea, and brain extracts exhibited the highest specific activity; mandibular glands, testes, salivary glands, and Malpighian tubules had moderate specific activity; and fat body had the least. Based on total organ activity, however, fat body and salivary glands had the greatest activity; testes, Malpighian tubules, mandibular glands, and proctodaeum had moderate activity; and brain and subesophageal ganglion had the least. JF - Archives of Insect Biochemistry and Physiology AU - Gelman, D B AU - DeMilo, AB AU - Thyagaraja, B S AU - Kelly, T J AU - Masler, E P AU - Bell, R A AU - Borkovec, AB AD - USDA, ARS, Rm. 319, Build. 306, Beltsville, MD 20705, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 93 EP - 106 VL - 17 IS - 2-3 SN - 0739-4462, 0739-4462 KW - 3-oxoecdysteroid 3 beta -reductase KW - Lepidoptera KW - Noctuidae KW - Ostrinia nubilalis KW - ecdysone KW - organs KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Entomology Abstracts KW - Z 05174:Hormones KW - Z 05173:Biochemistry & metabolism (incl. fat body) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16052360?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Archives+of+Insect+Biochemistry+and+Physiology&rft.atitle=3-Oxoecdysteroid+3+beta+-reductase+in+various+organs+of+the+European+corn+borer%2C+Ostrinia+nubilalis+%28Hubner%29.&rft.au=Gelman%2C+D+B%3BDeMilo%2C+AB%3BThyagaraja%2C+B+S%3BKelly%2C+T+J%3BMasler%2C+E+P%3BBell%2C+R+A%3BBorkovec%2C+AB&rft.aulast=Gelman&rft.aufirst=D&rft.date=1991-01-01&rft.volume=17&rft.issue=2-3&rft.spage=93&rft.isbn=&rft.btitle=&rft.title=Archives+of+Insect+Biochemistry+and+Physiology&rft.issn=07394462&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - ecdysone ER - TY - JOUR T1 - Vapor pressure deficit differentially affects laboratory populations of Metaseiulus occidentalis and Neoseiulus fallacis (Acarina: Phytoseiidae) reared together. AN - 16052201; 2618169 AB - The phytoseiid predators Neoseiulus fallacis (Garman) and Metaseiulus occidentalis (Nesbitt) were reared together and fed on Tetranychus urticae Koch to determine the possibility of coexistence and the effect of vapor pressure deficit on the two species. Additionally, developmental times for the two predators feeding on the spruce spider mite, Oligonychus ununguis (Jacobi), were determined at 14 degree C and vapor pressure deficits of 1, 4, 6, and 10 millibars (mb). N. fallacis and M. occidentalis respond to vapor pressure deficit in essentially opposite ways. In the interaction treatments, populations of N. fallacis reproduced rapidly at low vapor pressure deficits (high atmospheric moisture) but vapor pressure deficits of 10 mb or greater severely limited population growth of this species; M. occidentalis populations grew more readily at higher vapor pressure deficits (> 10 mb). JF - Environmental Entomology AU - Mangini, AC Jr AU - Hain, F P AD - USDA Forest Serv., Forest Pest Manage., Box 5500, Pineville, LA 71360, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 823 EP - 831 VL - 20 IS - 3 SN - 0046-225X, 0046-225X KW - Metaseiulus occidentalis KW - Ecology Abstracts; Entomology Abstracts KW - reproduction KW - humidity preferences KW - Neoseiulus fallacis KW - Phytoseiidae KW - population growth KW - Acari KW - D 04660:Arachnids KW - Z 05196:Environmental effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16052201?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Vapor+pressure+deficit+differentially+affects+laboratory+populations+of+Metaseiulus+occidentalis+and+Neoseiulus+fallacis+%28Acarina%3A+Phytoseiidae%29+reared+together.&rft.au=Mangini%2C+AC+Jr%3BHain%2C+F+P&rft.aulast=Mangini&rft.aufirst=AC&rft.date=1991-01-01&rft.volume=20&rft.issue=3&rft.spage=823&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Neoseiulus fallacis; Phytoseiidae; Acari; humidity preferences; reproduction; population growth ER - TY - JOUR T1 - Population dynamics of American dog ticks (Acari: Ixodidae) along park trails. AN - 16052069; 2618071 AB - We conducted a mark-recapture study in which drag-collected ticks were removed from some park trails weekly from April to July. Weekly survival rates (probability of surviving and remaining on the trails) were significantly lower on trails used heavily by hikers, horses, and pets than on trails used less frequently. Although usage was the only obvious difference among these trails, differences in weekly survival rate estimates may be attributable to differential success in acquiring hosts. The estimated probability of capturing a host-seeking tick located along a trail on a single drag was 0.20 on the drag alone, and 0.25 including the person dragging. When routes parallel to the trails and of equal lengths were dragged immediately after sampling the trails, only approximately equals 5% as many ticks (including ticks on the person dragging) were found off the trails as on them. JF - Environmental Entomology AU - Carroll, J F AU - Russek-Cohen, E AU - Nichols, J D AU - Hines, JE AD - Livest. Insects Lab., Livest. and Poult. Sci. Inst., USDA-ARS, Beltsville, MD 20705, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 922 EP - 929 VL - 20 IS - 3 SN - 0046-225X, 0046-225X KW - Dermacentor variabilis KW - Ecology Abstracts; Entomology Abstracts KW - Ixodidae KW - parks KW - Acari KW - USA, Maryland KW - population dynamics KW - Z 05202:Parasitism: non-entomophagous KW - D 04660:Arachnids UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16052069?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Population+dynamics+of+American+dog+ticks+%28Acari%3A+Ixodidae%29+along+park+trails.&rft.au=Carroll%2C+J+F%3BRussek-Cohen%2C+E%3BNichols%2C+J+D%3BHines%2C+JE&rft.aulast=Carroll&rft.aufirst=J&rft.date=1991-01-01&rft.volume=20&rft.issue=3&rft.spage=922&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Ixodidae; Acari; USA, Maryland; population dynamics; parks ER - TY - JOUR T1 - Effect of milk stasis on Brucella abortus infection of the mammary gland in goats. AN - 16051098; 2612869 AB - To compare the effects of milk stasis and milk flow on Brucella abortus infection of the mammary gland under the same systemic conditions, primiparous goats (n = 5) were inoculated IV with B. abortus on the day of parturition, and suckling by their neonates was restricted to one mammary gland. Goats were euthanatized and necropsied at 3 weeks after inoculation, and milk, mammary glands, and supramammary lymph nodes were evaluated by bacteriologic, histologic, and immunoenzymatic staining techniques. The studies show that milk stasis may be the sole cause of increased susceptibility of nonnursed mammary glands to B. abortus infection. JF - American Journal of Veterinary Research AU - Meador, V P AU - Deyoe, B L AD - USDA, Agric. Res. Serv., Natl. Anim. Dis. Cent., Brucell. Res. Unit, Ames, IA 50010, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 886 EP - 890 VL - 52 IS - 6 SN - 0002-9645, 0002-9645 KW - Brucella abortus KW - infection KW - susceptibility KW - mammary glands KW - goats KW - Microbiology Abstracts B: Bacteriology KW - inflammation KW - lymph nodes KW - J 02862:Infection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16051098?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Journal+of+Veterinary+Research&rft.atitle=Effect+of+milk+stasis+on+Brucella+abortus+infection+of+the+mammary+gland+in+goats.&rft.au=Meador%2C+V+P%3BDeyoe%2C+B+L&rft.aulast=Meador&rft.aufirst=V&rft.date=1991-01-01&rft.volume=52&rft.issue=6&rft.spage=886&rft.isbn=&rft.btitle=&rft.title=American+Journal+of+Veterinary+Research&rft.issn=00029645&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - lymph nodes; inflammation ER - TY - JOUR T1 - Overwintering and cold tolerance of the mermithid Filipjevimermis leipsandra . AN - 16050808; 2608890 AB - Overwintering survival of Filipjevimermis leipsandra postparasitic adults ranged from 12 to 15% over 2 years. Nematodes recovered from biweekly samples oviposited within a week when exposed to warm temperatures. More nematodes were recovered from the lower portions of soil cores than from the upper. In laboratory tests of cold tolerance, the LD sub(50) at -5 C was 5.5 hours, whereas exposure to -2 C for as long as 96 hours resulted in no mortality. JF - Journal of Nematology AU - Elsey, K D AD - USDA ARS, U.S. Veg. Lab., Charleston, SC 29414-5334, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 321 EP - 323 VL - 23 IS - 3 SN - 0022-300X, 0022-300X KW - overwintering KW - Filipjevimermis leipsandra KW - Ecology Abstracts KW - cold tolerance KW - D 04656:Nematodes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16050808?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Nematology&rft.atitle=Overwintering+and+cold+tolerance+of+the+mermithid+Filipjevimermis+leipsandra+.&rft.au=Elsey%2C+K+D&rft.aulast=Elsey&rft.aufirst=K&rft.date=1991-01-01&rft.volume=23&rft.issue=3&rft.spage=321&rft.isbn=&rft.btitle=&rft.title=Journal+of+Nematology&rft.issn=0022300X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - cold tolerance ER - TY - JOUR T1 - Nucleotide sequence of the Spirodela oligorrhiza chloroplast psbA gene coding for the D1 (32 kDa) photosystem II protein. AN - 16050358; 2619703 AB - Spirodela oligorrhiza (family Lemnaceae) is a monocotyledonous aquatic higher plant which has been extensively used for investigating expression of the psbA gene, and the life history and metabolic regulation of its protein product. Also, carboxy terminal processing of D1 was established by analyzing the distribution of amino acids in the Spirodela protein. We report here the psbA gene sequence of S. oligorrhiza . JF - Plant Molecular Biology AU - Avni, A AU - Mehta, R A AU - Mattoo, A K AU - Greenberg, B M AU - Chattoo, B B AU - Heller, D AU - Edelman, M AD - Plant Mol. Biol. Lab., USDA/ARS, Beltsville Agric. Res. Cent., Beltsville, MD 20705, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 919 EP - 921 VL - 17 IS - 4 SN - 0167-4412, 0167-4412 KW - D1 protein KW - Spirodela oligorrhiza KW - amino acid sequence KW - biochemical analysis KW - chloroplasts KW - genes KW - molecular structure KW - nucleotide sequence KW - nucleotides KW - photosystem II KW - plant physiology KW - predictions KW - psbA gene KW - reaction centers KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Genetics Abstracts; Biochemistry Abstracts 2: Nucleic Acids; ASFA 1: Biological Sciences & Living Resources KW - Freshwater KW - N 14640:Structure & sequence KW - Q1 08226:Physiology, biochemistry, biophysics KW - G 07359:GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16050358?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Plant+Molecular+Biology&rft.atitle=Nucleotide+sequence+of+the+Spirodela+oligorrhiza+chloroplast+psbA+gene+coding+for+the+D1+%2832+kDa%29+photosystem+II+protein.&rft.au=Avni%2C+A%3BMehta%2C+R+A%3BMattoo%2C+A+K%3BGreenberg%2C+B+M%3BChattoo%2C+B+B%3BHeller%2C+D%3BEdelman%2C+M&rft.aulast=Avni&rft.aufirst=A&rft.date=1991-01-01&rft.volume=17&rft.issue=4&rft.spage=919&rft.isbn=&rft.btitle=&rft.title=Plant+Molecular+Biology&rft.issn=01674412&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - molecular structure; biochemical analysis; genes; nucleotides; chloroplasts; photosystem II; Freshwater ER - TY - JOUR T1 - Temperature-dependent functional response of the parasitoid Cephalonomia waterstoni (Gahan) (Hymenoptera: Bethylidae) attacking rusty grain beetle larvae (Coleoptera: Cucujidae). AN - 16049537; 2617545 AB - The effects of host density and temperature on the functional response of the bethylid parasitoid Cephalonomia waterstoni (Gahan) attacking fourth-instar rusty grain beetle, Cryptolestes ferrugineus (Stephens) were examined. Five temperatures and six host densities were used. A type II functional response model was fit separately to each temperature. The maximum attack rate ranged from 7.5 larvae/12 h at 25 degree C, to 2.9 larvae/12 h at 38 degree C. Handling time and instantaneous search rate varied with temperature. A new functional response equation was developed in which handling time is a quadratic function of temperature. This equation explained 83% of the variation in attack rate. Although instantaneous search rate was also affected by temperature, it was sufficient to make only handling time a function of temperature because the two parameters were highly correlated. JF - Environmental Entomology AU - Flinn, P W AD - U.S. Grain Market. Res. Lab., USDA-ARS, Manhattan, KS 66502, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 872 EP - 876 VL - 20 IS - 3 SN - 0046-225X, 0046-225X KW - Cephalonomia waterstoni KW - Cucujidae KW - functional response KW - temperature KW - Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - Bethylidae KW - Coleoptera KW - Cryptolestes ferrugineus KW - host-parasite interactions KW - Hymenoptera KW - host searching behavior KW - Y 25493:Insects KW - Z 05201:Parasitism: entomophagous KW - D 04659:Insects KW - Z 05196:Environmental effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16049537?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Temperature-dependent+functional+response+of+the+parasitoid+Cephalonomia+waterstoni+%28Gahan%29+%28Hymenoptera%3A+Bethylidae%29+attacking+rusty+grain+beetle+larvae+%28Coleoptera%3A+Cucujidae%29.&rft.au=Flinn%2C+P+W&rft.aulast=Flinn&rft.aufirst=P&rft.date=1991-01-01&rft.volume=20&rft.issue=3&rft.spage=872&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Cryptolestes ferrugineus; Bethylidae; Hymenoptera; Coleoptera; host-parasite interactions; host searching behavior ER - TY - JOUR T1 - Benomyl tolerance of ten fungi antagonistic to plant-parasitic nematodes. AN - 16049129; 2607857 AB - Ten strains of fungi were tested for tolerance to the fungicide benomyl. Verticillium chlamydosporium strain 2 did not grow in the presence of benomyl; Drechmeria coniospora strains 1 and 2 and Chaetomium sp. tolerated only 0.1 mu g benomyl/ml medium; Acremonium bacillisporum , an unidentified fungus, and Phoma chrysanthemicola uniformly grew at 1 mu g/ml, but some hyphae grew at higher benomyl concentrations; Fusarium sp. tolerated 475 mu g/ml, but some hyphae grew on medium amended with 1,000 mu g/ml; Verticilium lecanii and V. chlamydosporium strain 1 routinely tolerated, 1,000 mu g/ml. Fungi generally grew slowly at higher than at lower benomyl concentrations. Strains with elevated tolerance to benomyl were selected from Acremonium bacillisporum, Drechmeria coniospora, Fusarium sp., and an unidentified fungus. These strains retained the increased tolerance after repeated transfers on unamended medium. JF - Journal of Nematology AU - Meyer, SLF AU - Sayre, R M AU - Huettel, R N AD - USDA, Nematol. Lab., Build. 011A, Rm. 153, Plant Sci. Inst., Beltsville Agric. Res. Cent.-W., 10300 Baltimore Ave., Beltsville, MD 20705-2350, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 402 EP - 408 VL - 23 IS - 4 SN - 0022-300X, 0022-300X KW - Deuteromycetes KW - benomyl KW - tolerance KW - fungicidal activity KW - pathogens KW - Acremonium bacillisporum KW - Phoma chrysanthemicola KW - Chaetomium KW - Drechmeria coniospora KW - Heterodera glycines KW - Verticillium chlamydosporium KW - Verticillium lecanii KW - biological control KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - A 01064:Microbial resistance KW - W 30513:Pest control KW - K 03063:Effects of physical & chemical factors UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16049129?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Nematology&rft.atitle=Benomyl+tolerance+of+ten+fungi+antagonistic+to+plant-parasitic+nematodes.&rft.au=Meyer%2C+SLF%3BSayre%2C+R+M%3BHuettel%2C+R+N&rft.aulast=Meyer&rft.aufirst=SLF&rft.date=1991-01-01&rft.volume=23&rft.issue=4&rft.spage=402&rft.isbn=&rft.btitle=&rft.title=Journal+of+Nematology&rft.issn=0022300X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Heterodera glycines; Verticillium chlamydosporium; Drechmeria coniospora; Chaetomium; Verticillium lecanii; biological control ER - TY - JOUR T1 - Long-term laboratory evaluation of Rogas lymantriae : A braconid endoparasite of the gypsy moth, Lymantria dispar . AN - 16049124; 2618366 AB - Rogas lymantriae Watanabe was reared on Lymantria dispar (L.) for 125 generations in the laboratory following importation from Japan. No deleterious effects of colonization were observed and one measured parameter, successful parasite emergence, significantly improved over time. Decreased density of the host or conspecific female parasites resulted in higher levels of parasitism and numbers of females in the next generation. During 3 different years, colony production was significantly increased with little difficulty to provide parasites for inoculative releases in the field. JF - Entomophaga AU - Grinberg, P S AU - Wallner, W E AD - USDA Forest Serv., Northeast. Forest Exp. Stn., Cent. Biol. Control, Northeast. Forest Insects and Dis., Hamden, CT 06514, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 205 EP - 212 VL - 36 IS - 2 SN - 0013-8959, 0013-8959 KW - Rogas lymantriae KW - Braconidae KW - Hymenoptera KW - Lepidoptera KW - Lymantria dispar KW - Lymantriidae KW - biological control KW - parasites KW - rearing KW - Biotechnology and Bioengineering Abstracts; Entomology Abstracts KW - W 30513:Pest control KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16049124?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Entomophaga&rft.atitle=Long-term+laboratory+evaluation+of+Rogas+lymantriae+%3A+A+braconid+endoparasite+of+the+gypsy+moth%2C+Lymantria+dispar+.&rft.au=Grinberg%2C+P+S%3BWallner%2C+W+E&rft.aulast=Grinberg&rft.aufirst=P&rft.date=1991-01-01&rft.volume=36&rft.issue=2&rft.spage=205&rft.isbn=&rft.btitle=&rft.title=Entomophaga&rft.issn=00138959&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lymantria dispar; Braconidae; Hymenoptera; Lepidoptera; Lymantriidae; rearing; parasites; biological control ER - TY - JOUR T1 - Effectiveness of microbial control of Heliothis spp. developing on early season wild geraniums: Field and field cage tests. AN - 16049028; 2617812 AB - A field test was conducted to study control of Heliothis spp. larvae on early season wild host plants, primarily wild Geranium spp. Halves of one test plot were either treated with red dye or blue dye alone, while halves of a second test area were treated with blue dye alone or red dye plus a nuclear polyhedrosis virus (NPV). Both blue and red marked moths (11.6 and 5.8% of the captured populations, respectively) were found among adult H. virescens (F.) males caught in pheromone traps near the areas treated with dyes alone. However, only blue marked moths (7.7% of the captured populations) were detected among adults captured near the areas treated with the blue dye alone or red dye plus virus. These results demonstrated a reduction in adult emergence from areas treated with the virus. Although significantly less effective than any NPV treatment, a mixture of an insect growth regulator and the bacterium Bacillus thuringiensis Berliner, resulted in a significant reduction in emergence compared with the untreated control. JF - Journal of Economic Entomology AU - Bell, M R AD - USDA-ARS, South. Insect Manage. Lab., Stoneville, MS, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 851 EP - 854 VL - 84 IS - 3 SN - 0022-0493, 0022-0493 KW - Heliothis KW - Bacillus thuringiensis KW - Geranium KW - Lepidoptera KW - Noctuidae KW - biological control KW - nuclear polyhedrosis virus KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Biotechnology and Bioengineering Abstracts; Entomology Abstracts KW - A 01014:Others KW - W 30513:Pest control KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16049028?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Effectiveness+of+microbial+control+of+Heliothis+spp.+developing+on+early+season+wild+geraniums%3A+Field+and+field+cage+tests.&rft.au=Bell%2C+M+R&rft.aulast=Bell&rft.aufirst=M&rft.date=1991-01-01&rft.volume=84&rft.issue=3&rft.spage=851&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Geranium; nuclear polyhedrosis virus; Noctuidae; Lepidoptera; Bacillus thuringiensis; biological control ER - TY - JOUR T1 - Population dynamics of Meloidogyne chitwoodi on Russet Burbank potatoes in relation to degree-day accumulation. AN - 16048825; 2608881 AB - Population dynamics of Meloidogyne chitwoodi were studied for 2 years in a commercial potato field and microplots. Annual second-stage juvenile (J2) densities peaked at harvest in mid-fall, declined through the winter, and were lowest in early summer. In the field and in one microplot study, population increase displayed trimodal patterns during the 1984 and 1985 seasons. Over-wintering nematodes produced egg masses on roots by 600-800 degree-days base 5 C (DD sub(5)) after planting. Second-generation and third-generation eggs hatched by 950-1,100 DD sub(5) and 1,500-1,600 DD sub(5), respectively, and J2 densities rapidly increased in the soil. A fourth generation was observed at 2,150 DD sub(5) in 1985 microplot studies. The regional variation in M. chitwoodi) damage on potato may be explained by degree-day accumulation in different potato production regions of the western United States. JF - Journal of Nematology AU - Pinkerton, J N AU - Santo, G S AU - Mojtahedi, H AD - USDA ARS, Hortic. Res. Lab., Corvallis, OR 97330, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 283 EP - 290 VL - 23 IS - 3 SN - 0022-300X, 0022-300X KW - population dynamics KW - degree-day accumulation KW - Meloidogyne chitwoodi KW - Ecology Abstracts KW - agricultural ecosystems KW - temperature requirements KW - D 04656:Nematodes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16048825?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Nematology&rft.atitle=Population+dynamics+of+Meloidogyne+chitwoodi+on+Russet+Burbank+potatoes+in+relation+to+degree-day+accumulation.&rft.au=Pinkerton%2C+J+N%3BSanto%2C+G+S%3BMojtahedi%2C+H&rft.aulast=Pinkerton&rft.aufirst=J&rft.date=1991-01-01&rft.volume=23&rft.issue=3&rft.spage=283&rft.isbn=&rft.btitle=&rft.title=Journal+of+Nematology&rft.issn=0022300X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - temperature requirements; agricultural ecosystems ER - TY - JOUR T1 - Doses and residues of acephate baits used to eradicate undesirable honey bees: A hazard assessment. AN - 16048002; 2614178 AB - This report summarizes information on acephate doses delivered to experimental colonies under field conditions typifying anticipated regulatory situations. In addition, residues of acephate and its metabolite methamidophos in treated colonies were measured to evaluate their potential environmental contamination. JF - Bulletin of Environmental Contamination and Toxicology AU - Danka, R G AU - Williams, J L AU - Harmon, C W AU - Rinderer, TE AU - Morris, H F AD - USDA-ARS, Honey-Bee Breed., Genet. and Physiol. Lab., Baton Rouge, LA 70820, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 422 EP - 427 VL - 47 IS - 3 SN - 0007-4861, 0007-4861 KW - Apis mellifera scutellata KW - acephate KW - Risk Abstracts KW - residues KW - hazards KW - R2 23040:Biological UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16048002?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+Environmental+Contamination+and+Toxicology&rft.atitle=Doses+and+residues+of+acephate+baits+used+to+eradicate+undesirable+honey+bees%3A+A+hazard+assessment.&rft.au=Danka%2C+R+G%3BWilliams%2C+J+L%3BHarmon%2C+C+W%3BRinderer%2C+TE%3BMorris%2C+H+F&rft.aulast=Danka&rft.aufirst=R&rft.date=1991-01-01&rft.volume=47&rft.issue=3&rft.spage=422&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+Environmental+Contamination+and+Toxicology&rft.issn=00074861&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - hazards; residues ER - TY - JOUR T1 - A colorimetric assay for quantitating bovine neutrophil bactericidal activity. AN - 16047733; 2610552 AB - A colorimetric assay was developed for quantitating bovine neutrophil bactericidal activity against Staphylococcus aureus . The procedure used the tetrazolium compound, 3(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT). The assay was conducted by incubating antibody-opsonized S. aureus with neutrophils in microtiter plates for 1 h at a ratio of 10 bacteria per neutrophil. Neutrophils were then lysed with saponin. The MTT was added and samples were incubated for 10 min. Live S. aureus reduced MTT to purple formazan. Dead bacteria and lysed neutrophils did not react with MTT. The results the colorimetric MTT bactericidal assay is efficacious in detecting modulation of bovine neutrophil bactericidal activity. Furthermore, the MTT assay has many advantages over traditional bactericidal assays in that it is sensitive, inexpensive, requires less than 3 h to complete, and can analyze many neutrophil samples in a single day. JF - Veterinary Immunology and Immunopathology AU - Stevens, M G AU - Kehrli, ME Jr AU - Canning, P C AD - Natl. Anim. Dis. Cent., USDA, ARS, Brucell. Res. Unit, P.O. Box 70, Ames, IA 50010, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 45 EP - 56 VL - 28 IS - 1 SN - 0165-2427, 0165-2427 KW - Staphylococcus aureus KW - bactericidal activity KW - colchicine KW - cytochalasin B KW - Immunology Abstracts; Microbiology Abstracts B: Bacteriology KW - gamma -interferon KW - leukocytes (neutrophilic) KW - J 02831:Techniques and reagents KW - F 06727:Tests of leukocyte function UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16047733?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Veterinary+Immunology+and+Immunopathology&rft.atitle=A+colorimetric+assay+for+quantitating+bovine+neutrophil+bactericidal+activity.&rft.au=Stevens%2C+M+G%3BKehrli%2C+ME+Jr%3BCanning%2C+P+C&rft.aulast=Stevens&rft.aufirst=M&rft.date=1991-01-01&rft.volume=28&rft.issue=1&rft.spage=45&rft.isbn=&rft.btitle=&rft.title=Veterinary+Immunology+and+Immunopathology&rft.issn=01652427&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - leukocytes (neutrophilic); gamma -interferon ER - TY - JOUR T1 - Relative importance of fluorescent siderophores and other factors in biological control of Gaeumannomyces graminis var. tritici by Pseudomonas fluorescens 2-79 and M4-80R. AN - 16047543; 2607850 AB - Pseudomonas fluorescens 2-79 suppresses take-all, a major root disease of wheat caused by Gaeumannomyces graminis var. tritici . The bacteria produce an antibiotic, phenazine-1-carboxylic acid (PCA), and a fluorescent pyoverdin siderophore. Previous studies have established that PCA has an important role in the biological control of take-all but that antibiotic production does not account fully for the suppressiveness of the strain. To define the role of the pyoverdin siderophore more precisely, mutants deficient in production of the antibiotic, the siderophore, or both factors were constructed and compared with the parental strain for control of take-all on wheat roots. In all cases, strains that produced PCA were more suppressive than those that did not, and pyoverdin-deficient mutant derivatives controlled take-all as effectively as their respective fluorescent parental strains. Thus, the phenazine antibiotic was the dominant factor in disease suppression and the fluorescent siderophore had little or no role. JF - Applied and Environmental Microbiology AU - Hamdan, H AU - Weller, D M AU - Thomashow, L S AD - ARS, USDA, Root Dis. and Biol. Control Res. Unit, Washington State Univ., Pullman, WA 99164-6430, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 3270 EP - 3277 VL - 57 IS - 11 SN - 0099-2240, 0099-2240 KW - Pseudomonas fluorescens KW - fluorescence KW - var.tritici KW - phenazine-1-carboxylic acid KW - pyoverdin KW - Gaeumannomyces graminis KW - Gaeumannomyces graminis tritici KW - Triticum aestivum KW - biological control KW - siderophores KW - take-all KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - K 03089:Fungi: plant KW - A 01031:Antifungal & fungicidal agents KW - J 02901:Soil and plants KW - W 30513:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16047543?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Relative+importance+of+fluorescent+siderophores+and+other+factors+in+biological+control+of+Gaeumannomyces+graminis+var.+tritici+by+Pseudomonas+fluorescens+2-79+and+M4-80R.&rft.au=Hamdan%2C+H%3BWeller%2C+D+M%3BThomashow%2C+L+S&rft.aulast=Hamdan&rft.aufirst=H&rft.date=1991-01-01&rft.volume=57&rft.issue=11&rft.spage=3270&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Gaeumannomyces graminis; Gaeumannomyces graminis tritici; Triticum aestivum; siderophores; biological control; take-all ER - TY - JOUR T1 - Resistance to western gall rust in artificially inoculated ponderosa pine. AN - 16042413; 2607678 AB - Seedlings from 80 open-pollinated families of ponderosa pine (Pinus ponderosa Laws.) were inoculated with western gall rust (Endocronartium harknessii (J.P. Moore) Y. Hiratsuka) at the beginning of their 2nd year of growth. The overall infection level was 41%, with a family heritability of 0.76. Several resistance responses were evident, heritabilities of which ranged from moderate to high; i.e., for seedlings with no symptoms, the heritability value was 0.60, while for trees with bark reactions that prevented gall formation, the heritability value was 0.71. There were three such types of bark reaction, for which heritability values were 0.36, 0.58, and 0.60. Heritability values of 0.38, 0.41, and 0.45 were found for trees with dead galls, rust-killed trees, and rate of gall appearance, respectively. JF - CAN. J. FOR. RES./J. CAN. RECH. FOR. AU - Hoff, R J AD - USDA For. Serv., Intermt. Res. Stn., 1221 S. Main St., Moscow, ID 83843, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1316 EP - 1320 VL - 21 IS - 12 KW - Endocronartium harknessii KW - disease resistance KW - seedlings KW - host-pathogen interactions KW - western gall rust KW - Genetics Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Pinus ponderosa KW - heritability KW - rust KW - K 03089:Fungi: plant KW - G 07351:GENERAL KW - A 01045:Diseases & treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16042413?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.atitle=Resistance+to+western+gall+rust+in+artificially+inoculated+ponderosa+pine.&rft.au=Hoff%2C+R+J&rft.aulast=Hoff&rft.aufirst=R&rft.date=1991-01-01&rft.volume=21&rft.issue=12&rft.spage=1316&rft.isbn=&rft.btitle=&rft.title=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinus ponderosa; rust; heritability ER - TY - JOUR T1 - Cuticle proteins of the boll weevil, Anthonomus grandis , abdomen: Structural similarities and glycosylation. AN - 16042150; 2614758 AB - Cuticle proteins are thought to be important in defining the structural and functional differences occurring in insect cuticle. In order to explain and better understand the structural similarities among the cuticle proteins of the cotton boll weevil, Anthonomus grandis Boheman, described in a previous study, three series of monoclonal antibody producing hybridoma cell lines were produced. Larval, pupal or adult cuticle proteins were used as antigens. While some of the monoclonal antibodies were specific for one or two cuticle proteins from a single developmental stage, the majority showed multiple cuticle protein binding patterns on Western blots. To determine whether this cross-reaction was due to common oligosaccharide chains bound to the proteins, lectins were used to probe Western blots. Many of the cuticle proteins were found to be glycosylated. The majority of the Con A reactive carbohydrate could be removed from the protein by N-glycosidase F digestion (specific for N-asparagine linked carbohydrate). N-glycosidase F digestion did not reduce the multiple cross-reactions of the monoclonal antibodies, nor did periodate oxidation of the CP. The carbohydrate remaining after enzyme digestion is presumably O-linked to serine/threonine. JF - INSECT BIOCHEM. AU - Stiles, B AD - USDA, ARS, Biosci. Res. Lab., 1605 W. College St., Fargo, ND 58105, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 249 EP - 258 VL - 21 IS - 3 KW - Anthonomus grandis KW - Coleoptera KW - Curculionidae KW - abdomen KW - comparison KW - cuticles KW - glycosylation KW - proteins KW - structure KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Entomology Abstracts KW - Z 05163:Integument UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16042150?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=INSECT+BIOCHEM.&rft.atitle=Cuticle+proteins+of+the+boll+weevil%2C+Anthonomus+grandis+%2C+abdomen%3A+Structural+similarities+and+glycosylation.&rft.au=Stiles%2C+B&rft.aulast=Stiles&rft.aufirst=B&rft.date=1991-01-01&rft.volume=21&rft.issue=3&rft.spage=249&rft.isbn=&rft.btitle=&rft.title=INSECT+BIOCHEM.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - glycosylation; cuticles; abdomen ER - TY - JOUR T1 - Effect of cover crops on Cylindrocladium sp. in an Ontario bare-root nursery. AN - 16041781; 2607726 AB - Four species were grown as cover crops and incorporated into soil of field plots at Midhurst Nursery, Midhurst, Ontario, two times per growing season for 2 successive years. After two seasons, microsclerotial populations of Cylindrocladium sp. were higher in soils planted with alfalfa (Medicago sativa L., cv. Vernal) and Sudan grass (Sorghum bicolor (L.) Moench, cv. Green Leaf), and not different in soils with spring wheat (Triticum aestivum L., cv. Glen Lea), than populations in noncropped, fallow plots. Lower populations of the fungus were detected in soils planted with flax (Linum usitatissimum L.) than in the fallow ones. Highest disease incidence in black spruce (Picea mariana (Mill.) B.S.P.) transplants occurred when grown in plots treated with alfalfa, Sudan grass, and wheat. Disease incidence was lower in transplants grown in the flax plots than in those grown in the other plots, including the fallow ones. Spruce mortality was also less in the flax plots compared with all other treatment plots. JF - CAN. J. FOR. RES./J. CAN. RECH. FOR. AU - Juzwik, J AU - Testa, F AD - USDA For. Serv., North Cent. For. Exp. Stn., 1992 Folwell Ave., St. Paul, MN 55108, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 724 EP - 728 VL - 21 IS - 5 KW - Cylindrocladium KW - population levels KW - soil KW - infection KW - transplants KW - disease control KW - nurseries KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - cover crops KW - Sorghum bicolor KW - Triticum aestivum KW - Picea mariana KW - Linum usitatissimum KW - Medicago sativa KW - K 03089:Fungi: plant KW - A 01045:Diseases & treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16041781?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.atitle=Effect+of+cover+crops+on+Cylindrocladium+sp.+in+an+Ontario+bare-root+nursery.&rft.au=Juzwik%2C+J%3BTesta%2C+F&rft.aulast=Juzwik&rft.aufirst=J&rft.date=1991-01-01&rft.volume=21&rft.issue=5&rft.spage=724&rft.isbn=&rft.btitle=&rft.title=CAN.+J.+FOR.+RES.%2FJ.+CAN.+RECH.+FOR.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Picea mariana; Medicago sativa; Sorghum bicolor; Linum usitatissimum; Triticum aestivum; cover crops ER - TY - JOUR T1 - Understory vegetation response to increasing water and nitrogen levels in a Pinus ponderosa forest in northeastern Oregon. AN - 16041306; 2609617 AB - The objective of this research was to test the hypotheses that both water and nitrogen and/or their interaction limit understory biomass production in a Pinus ponderosa (ponderosa pine) forest in northeastern Oregon. The water + nitrogen treatment produced 16 and 18 percent greater aboveground dry weight biomass than the nitrogen and water treatments and 36 percent more than the control treatments. Nitrogen and water treatments were 17 and 15 percent more productive than the control treatment. There was no relationship between light (PAR), measured at the center of each plot with light sensitive ozalid paper, and biomass production. Understory vegetation is significantly limited by both water and nitrogen in P. ponderosa forests of northeastern Oregon. JF - Northwest Science AU - Riegel, G M AU - Miller, R F AD - USDA Agric. Res. Serv., 920 Valley Rd., Reno, NV 89512, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 10 EP - 15 VL - 65 IS - 1 SN - 0029-344X, 0029-344X KW - soil moisture KW - nitrogen KW - Ecology Abstracts KW - forests KW - biomass KW - Pinus ponderosa KW - nutrient concentrations KW - understory KW - USA, Oregon KW - D 04125:Temperate forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16041306?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Northwest+Science&rft.atitle=Understory+vegetation+response+to+increasing+water+and+nitrogen+levels+in+a+Pinus+ponderosa+forest+in+northeastern+Oregon.&rft.au=Riegel%2C+G+M%3BMiller%2C+R+F&rft.aulast=Riegel&rft.aufirst=G&rft.date=1991-01-01&rft.volume=65&rft.issue=1&rft.spage=10&rft.isbn=&rft.btitle=&rft.title=Northwest+Science&rft.issn=0029344X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinus ponderosa; USA, Oregon; understory; forests; nutrient concentrations; biomass ER - TY - JOUR T1 - Toward an optimum strategy for estimating density of grasshoppers (Orthoptera: Acrididae) from a Poisson distribution. AN - 16040497; 2604071 AB - Over a range of densities from 15 to 140 grasshoppers per m super(2), six persons counted grasshoppers in subsamples delineated by wire rings that encompassed 0.05, 0.10, or 0.25 m super(2) per ring. Results did not differ significantly between personnel. The smallest ring size was the most accurate. Each increase in area per ring yielded a decrease in accuracy; the proportion of error increased with ring size but was constant over the observed range of densities. The 0.10- and 0.25-m super(2) rings detected only 80 and 58%, respectively, of available grasshoppers. The larger rings obviously encompassed more area than an observer could simultaneously comprehend. A random spatial distribution was confirmed for grasshoppers on rangeland. Poisson confidence intervals therefore are appropriate. JF - Environmental Entomology AU - Onsager, JA AD - USDA-ARS, Rangeland Insect Lab., Bozeman, MT 59717, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 939 EP - 944 VL - 20 IS - 3 SN - 0046-225X, 0046-225X KW - Acrididae KW - Ecology Abstracts; Entomology Abstracts KW - population density KW - sampling KW - Orthoptera KW - rangelands KW - USA, Montana KW - Z 05205:Populations & general ecology KW - D 04659:Insects KW - Z 05207:Agricultural & general applied entomology KW - D 04002:Surveying and remote sensing KW - Z 05156:Techniques UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16040497?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Toward+an+optimum+strategy+for+estimating+density+of+grasshoppers+%28Orthoptera%3A+Acrididae%29+from+a+Poisson+distribution.&rft.au=Onsager%2C+JA&rft.aulast=Onsager&rft.aufirst=JA&rft.date=1991-01-01&rft.volume=20&rft.issue=3&rft.spage=939&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Orthoptera; USA, Montana; rangelands; sampling; population density ER - TY - JOUR T1 - Basal injury from smoldering fires in mature Pinus ponderosa Laws. AN - 16040307; 2603526 AB - Fuel accumulations were measured in duff mounds around the bases of 19 mature Pinus ponderosa Laws. (ponderosa pine) in a 200-year-old stand in Glacier National Park, Montana. Tree diameter at breast height ranged from 50 to 114 cm. The stand burned at intervals between 13 to 58 years prior to European settlement. This stand had not burned for 69 years. The duff depth 30 cm from the tree bole ranged from 3 to 39 cm. Duff depth increased with tree diameter and decreased with distance from the bole. Duff depth 90 cm from the bole averaged one-half the depth 30 cm from the bole. Duff consumption and its effect on cambium mortality were quantified following a late summer, low intensity fire. Duff moisture contents on a dry weight basis were: fermentation (20%) and humus (36%). Smoldering combustion consumed 98% of the duff beneath the trees. Two patterns of duff burning were documented: downward spreading and lateral spreading. JF - WILDLAND FIRE. AU - Ryan, K C AU - Frandsen, W H AD - USDA For. Serv., Intermt. Res. Stn., Intermt. Fire Sci. Lab., P.O. Box 8089, Missoula, MT 59807, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 107 EP - 118 VL - 1 IS - 2 KW - fires KW - Montana, Glacier National Park KW - Health & Safety Science Abstracts KW - Pinus ponderosa KW - mortality KW - ecology KW - thermodynamics KW - H SE1.8.1:FIRE & SMOKE KW - H SE8.27:FIRES IN NATURAL ENVIRONMENTS UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16040307?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=WILDLAND+FIRE.&rft.atitle=Basal+injury+from+smoldering+fires+in+mature+Pinus+ponderosa+Laws.&rft.au=Ryan%2C+K+C%3BFrandsen%2C+W+H&rft.aulast=Ryan&rft.aufirst=K&rft.date=1991-01-01&rft.volume=1&rft.issue=2&rft.spage=107&rft.isbn=&rft.btitle=&rft.title=WILDLAND+FIRE.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinus ponderosa; ecology; mortality; thermodynamics ER - TY - JOUR T1 - Development of dwarf mistletoe infections on inoculated western hemlock trees in southeast Alaska. AN - 16039824; 2609607 AB - In the autumn of 1977, 1978, and 1979, mature seeds of hemlock dwarf mistletoe (Arceuthobium tsugense ) were placed on needles and twigs of young western hemlock trees growing on a clearcut in Juneau, Alaska to provide information on seed retention and germination, infection development and survival, and generation time. Retention over one winter of 1,956 placed seeds averaged 65 percent while germination of retained seeds was 33 percent. Two hundred and sixty infections developed, 78 percent of which produced dwarf mistletoe shoots; however, over the 11 to 12 years that infections were observed, no seeds were produced and shoots were frequently broken or damaged. Plant damage, branch death, pollination biology, and environmental conditions are discussed as possible reasons for the lack of seed production and failure to complete the life cycle. Comparisons are made to other inoculation studies with A. tsugense . These comparisons indicate that the initial process of infection development, after mistletoe seeds are captured on needles or twigs, does not appear to account for the markedly lower infection levels that have been noted between stands in southeast Alaska and those further south. JF - Northwest Science AU - Shaw, CG III AU - Loopstra, E M AD - USDA Forest Serv., Rocky Mt. Forest and Range Exp. Stn., Fort Collins, CO 80526, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 48 EP - 52 VL - 65 IS - 1 SN - 0029-344X, 0029-344X KW - infection KW - Ecology Abstracts KW - USA, Alaska KW - Arceuthobium tsugense KW - Tsuga heterophylla KW - D 04625:Plants - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16039824?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Northwest+Science&rft.atitle=Development+of+dwarf+mistletoe+infections+on+inoculated+western+hemlock+trees+in+southeast+Alaska.&rft.au=Shaw%2C+CG+III%3BLoopstra%2C+E+M&rft.aulast=Shaw&rft.aufirst=CG&rft.date=1991-01-01&rft.volume=65&rft.issue=1&rft.spage=48&rft.isbn=&rft.btitle=&rft.title=Northwest+Science&rft.issn=0029344X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Arceuthobium tsugense; Tsuga heterophylla; USA, Alaska ER - TY - JOUR T1 - Effect of zinc pretreatment on cisplatin toxicity and trace element metabolism in rats. AN - 16036656; 2608516 AB - Cisplatin (CDDP), an effective chemotherapeutic drug, is toxic to the kidneys. Previous reports suggest that pretreatment of mice, by injection or by diet, with trace elements that induce kidney metallothionein (MT) prevents the toxicity. This study was designed to determine if pretreatment with subcutaneous oil-emulsion (SCOE) doses of Zn would induce synthesis of kidney MT and prevent CDDP toxicity in rats. The effects of this treatment on Cu status was also determined. Young adult male rats were given SCOE doses of Zn (90 mg/kg BW) every other day for 10 days. Control rats were given oil only. At day 7 some rats from the Zn-treated and control groups were given intraperitoneal injections of CDDP (5 mg/kg BW). Three days later tissues and serum were removed for analyses. The concentration of MT in the kidneys of rats injected with Zn was 4 times higher than in rats injected with oil alone. Serum urea and creatinine were elevated in CDDP-treated rats injected with Zn, which indicates that the increase in kidney MT did not protect them from CDDP toxicity. JF - Journal of Trace Elements in Experimental Medicine AU - Reeves, P G AU - Nelson, K L AD - USDA, ARS, Hum. Nutr. Res. Cent., Box 7166, University Stn., Grand Forks, ND 58202, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 89 EP - 101 VL - 4 IS - 2 SN - 0896-548X, 0896-548X KW - cisplatin KW - effects on KW - toxicity KW - zinc KW - rats KW - Toxicology Abstracts KW - kidney KW - antineoplastic drugs KW - X 24112:Chronic exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16036656?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Trace+Elements+in+Experimental+Medicine&rft.atitle=Effect+of+zinc+pretreatment+on+cisplatin+toxicity+and+trace+element+metabolism+in+rats.&rft.au=Reeves%2C+P+G%3BNelson%2C+K+L&rft.aulast=Reeves&rft.aufirst=P&rft.date=1991-01-01&rft.volume=4&rft.issue=2&rft.spage=89&rft.isbn=&rft.btitle=&rft.title=Journal+of+Trace+Elements+in+Experimental+Medicine&rft.issn=0896548X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - antineoplastic drugs; kidney ER - TY - JOUR T1 - Chemically mediated associative learning: An important function in the foraging behavior of Microplitis croceipes (Cresson). AN - 16026093; 2591656 AB - When experienced by contact with feces from hosts feeding on cowpeas, laboratory-reared females of Microplitis croceipes , a larval parasitoid of Heliothis spp., orient and fly to odors of the same feces, whereas naive laboratory-reared females do not. Flight-tunnel studies revealed that associative learning occurs during female encounters with hosts and host products. When females antennate host feces, they learn to recognize the volatile odors associated with the feces. Females even can be conditioned to respond to novel and otherwise unattractive odors such as vanilla extract by exposure to these volatile substances in association with a water extract of the feces. They apparently link the volatile odors with a nonvolatile host-specific recognition chemical found in the feces. The antennating stimulant, 13-methylhentriacontane, was found to be a valuable ingredient, apparently as a facilitator of the initial antennation and subsequent linkage of the volatiles to the nonvolatile host recognition cue. JF - Journal of Chemical Ecology AU - Lewis, W J AU - Tumlinson, J H AU - Krasnoff, S AD - Insect Biol. and Popul. Manage. Res. Lab., USDA, ARS, P.O. Box 748, Tifton, GA 31793, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1309 EP - 1326 VL - 17 IS - 7 SN - 0098-0331, 0098-0331 KW - foraging behavior KW - Chemoreception Abstracts; Entomology Abstracts; Ecology Abstracts; Animal Behavior Abstracts KW - olfactory discrimination KW - Braconidae KW - Microplitis croceipes KW - Hymenoptera KW - associative learning KW - Y 25493:Insects KW - Z 05201:Parasitism: entomophagous KW - D 04659:Insects KW - Y 25693:Insects KW - Z 05195:Learning KW - Y 25613:Insects KW - R 18054:Others UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16026093?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Chemically+mediated+associative+learning%3A+An+important+function+in+the+foraging+behavior+of+Microplitis+croceipes+%28Cresson%29.&rft.au=Lewis%2C+W+J%3BTumlinson%2C+J+H%3BKrasnoff%2C+S&rft.aulast=Lewis&rft.aufirst=W&rft.date=1991-01-01&rft.volume=17&rft.issue=7&rft.spage=1309&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Microplitis croceipes; Braconidae; Hymenoptera; associative learning; olfactory discrimination ER - TY - JOUR T1 - Isolation of substance from sweet potato (Ipomoea batatas ) periderm tissue that inhibits seed germination. AN - 16025646; 2594071 AB - Chromatographic procedures were used to isolate inhibitors of seed germination from sweet potato root periderm tissue. The inhibitory activity of all fractions was monitored using a proso millet seed germination bioassay. A single HPLC peak, representing approximately 1.2% of the periderm dry weight, accounted for most of the inhibitory activity. The active fraction was labile in methanolic solution. Further fractionation of this peak by HPLC methods was not successful. In vitro seed germination dose-response relationships were established for the peak. The various seed species exhibited an extremely wide range of sensitivity. The I sub(50) values were 0.16, 0.013 and 0.011 mg/ml for redroot pigweed, velvetleaf, and proso millet, respectively. Tall morning glory was not inhibited by any concentration tested. JF - Journal of Chemical Ecology AU - Peterson, J K AU - Harrison, HF Jr AD - USDA, Agric. Res. Serv., U.S. Veg. Lab., 2875 Savannah Highw., Charleston, SC 29414, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 943 EP - 952 VL - 17 IS - 5 SN - 0098-0331, 0098-0331 KW - seed germination KW - inhibitors KW - isolation KW - Ecology Abstracts KW - Ipomoea batatas KW - D 04640:Other angiosperms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16025646?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Isolation+of+substance+from+sweet+potato+%28Ipomoea+batatas+%29+periderm+tissue+that+inhibits+seed+germination.&rft.au=Peterson%2C+J+K%3BHarrison%2C+HF+Jr&rft.aulast=Peterson&rft.aufirst=J&rft.date=1991-01-01&rft.volume=17&rft.issue=5&rft.spage=943&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Ipomoea batatas ER - TY - JOUR T1 - Efficacy and persistence of a granulosis virus against infestations of Plodia interpunctella (Huebner) (Lepidoptera: Pyralidae) on raisins. AN - 16024131; 2594339 AB - Laboratory tests were conducted on the temperature stability of a formulation of a granulosis virus of Plodia interpunctella (Huebner). Efficacy of the formulation on raisins during extended high temperature storage was of particular interest as was the ability of the formulation to control incipient populations in the commodity. Two concentrations of the formulation were tested at temperatures of 27, 32, and 38 degree C storage for 0, 1, 3, 6, and 12 months to determine the influence of temperature on efficacy. The efficacy against previously infested raisins was determined at 27 degree C and with three concentrations of the formulation. The studies confirm the high level of control that can be obtained with this virus. At 32 and 38 degree C efficacy was substantially reduced after 1-3 months in storage. However, raisins would rarely be subjected to these higher temperatures for long periods without affecting quality. When incipient populations were treated, varying degrees of control were obtained depending on dosage and the age of larvae at the time of treatment. Control of the survivor's progeny was at least as good as that of the originally treated insects. JF - Journal of Stored Products Research AU - Vail, P V AU - Tebbets, J S AU - Cowan, D C AU - Jenner, KE AD - Hortic. Crops Res. Lab., USDA-ARS, 2021 S. Peach Ave., Fresno, CA 93727, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 103 EP - 107 VL - 27 IS - 2 SN - 0022-474X, 0022-474X KW - granulosis virus KW - formulations KW - efficacy KW - larvae KW - raisins KW - Lepidoptera KW - Plodia interpunctella KW - Pyralidae KW - biological control KW - fruits KW - pathogenicity KW - pest attack KW - stored products KW - Entomology Abstracts; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Virology & AIDS Abstracts KW - A 01014:Others KW - V 22160:Viral infections of invertebrates KW - W 30513:Pest control KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16024131?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Stored+Products+Research&rft.atitle=Efficacy+and+persistence+of+a+granulosis+virus+against+infestations+of+Plodia+interpunctella+%28Huebner%29+%28Lepidoptera%3A+Pyralidae%29+on+raisins.&rft.au=Vail%2C+P+V%3BTebbets%2C+J+S%3BCowan%2C+D+C%3BJenner%2C+KE&rft.aulast=Vail&rft.aufirst=P&rft.date=1991-01-01&rft.volume=27&rft.issue=2&rft.spage=103&rft.isbn=&rft.btitle=&rft.title=Journal+of+Stored+Products+Research&rft.issn=0022474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Plodia interpunctella; Pyralidae; Lepidoptera; biological control; fruits; stored products; pest attack; pathogenicity ER - TY - JOUR T1 - An algorithm for estimating surface suspended sediment concentrations with Landsat MSS digital data. AN - 16021153; 2598576 AB - Algorithms for Landsat MSS digital data are needed to reduce the necessity of calibrating each Landsat scene if these data are to be useful in monitoring programs for surface suspended sediments. In this study digital data were extracted from 16 Landsat Multispectral Scanner (MSS) scenes collected between Mar 1987 and Aug 1988 over Enid Reservoir in North Central Mississippi. These data were converted to radiance and reflectance data for comparison with field measurements of surface suspended sediment concentrations. Results suggest that it may be possible to develop an algorithm for widespread use for estimating surface suspended sediments. JF - Water Resources Bulletin AU - Ritchie, J C AU - Cooper, C M AD - USDA, ARS, Hydrol. Lab., BARC-E, Build. 265, Beltsville, MD 20705, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 373 EP - 379 VL - 27 IS - 3 SN - 0043-1370, 0043-1370 KW - Landsat data KW - Mississippi Enid Reservoir KW - USA Mississippi, Enid Reservoir KW - algorithm KW - approximation KW - radiance KW - reflectance KW - reservoirs (water) KW - resuspended sediments KW - sediment load KW - suspended load KW - Pollution Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - erosion KW - Freshwater KW - Landsat KW - sediments KW - remote sensing KW - Q2 09262:Methods and instruments KW - Q2 09393:Remote geosensing KW - Q2 09264:Sediments and sedimentation KW - P 2000:FRESHWATER POLLUTION KW - Q2 09186:Chemistry of suspended matter UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16021153?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Bulletin&rft.atitle=An+algorithm+for+estimating+surface+suspended+sediment+concentrations+with+Landsat+MSS+digital+data.&rft.au=Ritchie%2C+J+C%3BCooper%2C+C+M&rft.aulast=Ritchie&rft.aufirst=J&rft.date=1991-01-01&rft.volume=27&rft.issue=3&rft.spage=373&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Bulletin&rft.issn=00431370&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - sediment load; erosion; approximation; sediments; radiance; reflectance; suspended load; remote sensing; Landsat; Freshwater ER - TY - JOUR T1 - Design and use of outdoor microcosm laboratory tanks for the evaluation of shrimp diets. AN - 16020480; 2590643 AB - A tank field permitting large-scale outdoor testing of diets has been constructed and evaluated. The small size of the tanks in this outdoor microcosm laboratory (OML) optimizes labor and utility costs, thus reducing experiment cost. The OML has been in use for 3 years, demonstrating applicability to a number of research areas, especially feeds testing. Under similar temperature, feed, stocking, and management conditions, shrimp growth, feed conversion ratio (FCR), and survival values closely reproduce those measured in production-scale round ponds. JF - Aquacultural engineering. Barking AU - Freeman, D W AU - DUerr, E O AD - USDA-ARS Aquacult. Proj., Route 2, P.O. Box 481, Tishomingo, OK 73460, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 89 EP - 97 VL - 10 IS - 2 SN - 0144-8609, 0144-8609 KW - diets KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Oceanic Abstracts; ASFA Aquaculture Abstracts KW - Marine KW - culture tanks KW - aquaculture systems KW - shrimp culture KW - Q3 08583:Shellfish culture KW - Q1 08583:Shellfish culture KW - O 5060:Aquaculture UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16020480?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aquacultural+engineering.+Barking&rft.atitle=Design+and+use+of+outdoor+microcosm+laboratory+tanks+for+the+evaluation+of+shrimp+diets.&rft.au=Freeman%2C+D+W%3BDUerr%2C+E+O&rft.aulast=Freeman&rft.aufirst=D&rft.date=1991-01-01&rft.volume=10&rft.issue=2&rft.spage=89&rft.isbn=&rft.btitle=&rft.title=Aquacultural+engineering.+Barking&rft.issn=01448609&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - culture tanks; shrimp culture; aquaculture systems; Marine ER - TY - JOUR T1 - Biological control agents of noctuid larvae (Lepidoptera: Noctuidae) in the Imperial Valley of California. AN - 16020311; 2591068 AB - Parasitoids and nuclear polyhedrosis viruses were obtained and identified from larvae of Autographa californica (Speyer), Heliothis virescens (Fabricius), Helicoverpa zea (Boddie), Spodoptera exigua (Huebner), and Trichoplusia ni (Huebner) collected from alfalfa, cotton, lettuce, and sugarbeet in the Imperial Valley, CA. Parasitoids reared from H. virescens and H. zea were comprised of five tachinid, two ichneumonid, and two braconid species with Lespesia archippivora (Riley) and Hyposoter exiguae (Viereck) dominant. Parasitoids reared from the looper species were comprised of five tachinid, three ichneumonid, three braconid, and one encyrtid species with Voria ruralis (Fallen), Microplitis brassicae Muesebeck, and Copidosoma truncatellum (Dalman) dominant. Parasitoids reared from S. exigua were comprised of four tachinid, three ichneumonid, and four braconid species with Lespesia archippivora (Riley), Pristomerus spinator (F.), Chelonus insularis Cresson, and Cotesia marginiventris (Cresson) dominant. Nuclear polyhedrosis viruses were identified from all species. Baculoviruses identified in all species were either of the mNPV or xNPV types. JF - Southwestern Entomologist AU - Henneberry, T J AU - Vail, P V AU - Pearson, A C AU - Sevacherian, V AD - Western Cotton Res. Lab., USDA-Agric. Res. Serv., Phoenix, AZ 85040, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 81 EP - 90 VL - 16 IS - 1 SN - 0147-1724, 0147-1724 KW - nuclear polyhedrosis virus KW - larvae KW - crop fields KW - USA, California, Imperial Valley KW - Autographa californica KW - Helicoverpa zea KW - Heliothis virescens KW - Hymenoptera KW - Lepidoptera KW - Noctuidae KW - Spodoptera exigua KW - Trichoplusia ni KW - biological control KW - parasitoids KW - pathogens KW - Entomology Abstracts; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Virology & AIDS Abstracts KW - USA, California KW - A 01014:Others KW - V 22160:Viral infections of invertebrates KW - W 30513:Pest control KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16020311?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Southwestern+Entomologist&rft.atitle=Biological+control+agents+of+noctuid+larvae+%28Lepidoptera%3A+Noctuidae%29+in+the+Imperial+Valley+of+California.&rft.au=Henneberry%2C+T+J%3BVail%2C+P+V%3BPearson%2C+A+C%3BSevacherian%2C+V&rft.aulast=Henneberry&rft.aufirst=T&rft.date=1991-01-01&rft.volume=16&rft.issue=1&rft.spage=81&rft.isbn=&rft.btitle=&rft.title=Southwestern+Entomologist&rft.issn=01471724&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Noctuidae; Autographa californica; Heliothis virescens; Helicoverpa zea; Spodoptera exigua; Trichoplusia ni; Lepidoptera; Hymenoptera; USA, California; biological control; pathogens; parasitoids ER - TY - JOUR T1 - Nitrogenase activity, growth and carbon and nitrogen allocation in wintergreen and deciduous lupin seedlings. AN - 16018172; 2589967 AB - Measurement of nitrogenase activity, growth and C and N composition of seedlings of lupins that colonize disturbed sites at Mount St. Helens, revealed: Nitrogen fixation can begin within 2 weeks after germination. Germination patterns, growth and allocation of C and N are related to initial seed size or phenology. Dense seedling populations may be significant contributors to soil C and N pools. JF - Functional Ecology AU - Halvorson, J J AU - Black, R A AU - Smith, J L AU - Franz, E H AD - USDA-ARS 215 Johnson Hall, Washington State Univ., Pullman, WA 99164, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 554 EP - 561 VL - 5 IS - 4 SN - 0269-8463, 0269-8463 KW - growth KW - nitrogen KW - carbon KW - nitrogenase KW - USA, Montana, St. Helens Mt. KW - Ecology Abstracts KW - resource allocation KW - enzymatic activity KW - Pyrolaceae KW - Lupinus KW - D 04625:Plants - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16018172?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Functional+Ecology&rft.atitle=Nitrogenase+activity%2C+growth+and+carbon+and+nitrogen+allocation+in+wintergreen+and+deciduous+lupin+seedlings.&rft.au=Halvorson%2C+J+J%3BBlack%2C+R+A%3BSmith%2C+J+L%3BFranz%2C+E+H&rft.aulast=Halvorson&rft.aufirst=J&rft.date=1991-01-01&rft.volume=5&rft.issue=4&rft.spage=554&rft.isbn=&rft.btitle=&rft.title=Functional+Ecology&rft.issn=02698463&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lupinus; Pyrolaceae; resource allocation; enzymatic activity ER - TY - JOUR T1 - A re-assessment of bacterial growth efficiency: The heat production and membrane potential of Streptococcus bovis in batch and continuous culture. AN - 16017568; 2587026 AB - Glucose-limited, continuous cultures (dilution rate 0.1 h super(-1)) of Streptococcus bovis JB1 fermented glucose at a rate of 3.9 mu mol mg protein super(-1) h super(-1) and produced acetate, formate and ethanol. Based on a maximum ATP yield of 32 cells/mol ATP and 3 ATP/glucose, the theoretical glucose consumption for growth would have been 2.1 mu mol mg protein super(-1) h super(-1). Because the maintenance energy requirement was 1.7 mu mol/mg protein/h, virtually all of the glucose consumption could be explained by growth and maintenance and the Y sub(ATP) was 30. Glucose-limited, continuous cultures produced heat at a rate of 0.29 mW/mg protein, and this value was similar to the enthalpy change of the fermentation (0.32 mW/mg protein). JF - Archives of Microbiology AU - Russell, J B AD - agric. Res. Serv., USDA and Dep. Anim. Sci., Cornell Univ., Ithaca, NY 14853, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 559 EP - 565 VL - 155 IS - 6 SN - 0302-8933, 0302-8933 KW - Streptococcus bovis KW - glucose KW - growth KW - batch culture KW - continuous culture KW - heat production KW - Microbiology Abstracts B: Bacteriology KW - membrane potential KW - fermentation KW - rumen microorganisms KW - thermogenesis KW - J 02722:Biodegradation, growth, nutrition and leaching UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16017568?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Archives+of+Microbiology&rft.atitle=A+re-assessment+of+bacterial+growth+efficiency%3A+The+heat+production+and+membrane+potential+of+Streptococcus+bovis+in+batch+and+continuous+culture.&rft.au=Russell%2C+J+B&rft.aulast=Russell&rft.aufirst=J&rft.date=1991-01-01&rft.volume=155&rft.issue=6&rft.spage=559&rft.isbn=&rft.btitle=&rft.title=Archives+of+Microbiology&rft.issn=03028933&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - fermentation; rumen microorganisms; membrane potential; thermogenesis ER - TY - JOUR T1 - Bacterial phytotoxins: Mechanisms of action. AN - 16016909; 2586957 AB - Many species of phytopathogenic procaryotes produce toxins that appear to function in disease development. They affect the plant in different ways, the end result of which is the elicitation of chlorosis, necrosis, watersoaking, growth abnormalities or wilting. The most extensively studied toxins cause chlorosis. They specifically inhibit diverse enzymes, all critical to the plant cell. This inhibition results in a complex series of metabolic dysfunctions ultimately resulting in symptom expression. Substances causing growth abnormalities consist of known phytohormones and other compounds with plant hormone-like activities, but which have no structural relationship to the known hormones. The former act in the usual manner but, because of their elevated levels and imbalances, the host's regulatory mechanisms are overwhelmed and abnormal growth results (hyperplasia, shoot or root formation); the mechanisms of action of the latter group are unknown. High molecular weight, carbohydrate-containing substances, also acting in unknown ways, cause tissue watersoaking or wilting. JF - Experientia. Basel AU - Durbin, R D AD - Agric. Res. Serv., USDA and Dep. Plant Pathol., Univ. Wisconsin, Madison, WI 53706, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 776 EP - 783 VL - 47 IS - 8 SN - 0014-4754, 0014-4754 KW - bacteria KW - phytotoxicity KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - reviews KW - phytotoxins KW - plant diseases KW - crops KW - J 02880:Plant diseases KW - A 01023:Others KW - A 01024:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16016909?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Experientia.+Basel&rft.atitle=Bacterial+phytotoxins%3A+Mechanisms+of+action.&rft.au=Durbin%2C+R+D&rft.aulast=Durbin&rft.aufirst=R&rft.date=1991-01-01&rft.volume=47&rft.issue=8&rft.spage=776&rft.isbn=&rft.btitle=&rft.title=Experientia.+Basel&rft.issn=00144754&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - plant diseases; phytotoxins; crops; reviews ER - TY - JOUR T1 - Description of a scale for rating the clinical response of cattle poisoned by larkspur. AN - 16015066; 2590550 AB - Larkspur poisoning is a major cause of acute death of cattle on mountain and high plains rangelands of western United States. A nonlethal method to quantify dose response in cattle is needed to better estimate the toxicity of larkspur plants and the response of cattle to larkspur poisoning and to provide a basis for reference during studies. A numerical system of rating the clinical signs of larkspur poisoning was developed and used to describe the response of 10 Hereford cows given a repeated single daily dose of larkspur (Delphinium occidentale x barbeyi ) by gavage. Larkspur poisoning resulted from a short-term cumulative effect, and a statistically significant increase in score was essentially maximal by 4 days. At the dose given, this effect did not persist for more than 4 days after cessation of dosing. JF - American Journal of Veterinary Research AU - Olsen, J D AU - Sisson, D V AD - USDA, Agric. Res. Serv., Poisonous Plant Res. Lab., Logan, UT 84321, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 488 EP - 493 VL - 52 IS - 3 SN - 0002-9645, 0002-9645 KW - Delphinium occidentale x barbeyi KW - rating scale KW - larkspur KW - cattle KW - USA, Western KW - Toxicology Abstracts KW - toxicity testing KW - poisoning KW - X 24172:Plants KW - X 24221:Toxicity testing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16015066?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Journal+of+Veterinary+Research&rft.atitle=Description+of+a+scale+for+rating+the+clinical+response+of+cattle+poisoned+by+larkspur.&rft.au=Olsen%2C+J+D%3BSisson%2C+D+V&rft.aulast=Olsen&rft.aufirst=J&rft.date=1991-01-01&rft.volume=52&rft.issue=3&rft.spage=488&rft.isbn=&rft.btitle=&rft.title=American+Journal+of+Veterinary+Research&rft.issn=00029645&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - poisoning; toxicity testing ER - TY - JOUR T1 - Ortho-aminoacetophenone repellency to birds: Similarities to methyl anthranilate. AN - 16011599; 2586010 AB - Methyl anthranilate is an effective bird repellent at concentrations greater than or equal to 1.0% (g/g). Ortho-aminoacetophenone (OAP) has an odor similar to that of methyl anthranilate and is chemically (structurally) similar. Coincidentally, OAP is present in the scent gland secretions of mustelid species that prey on birds. For these reasons, we chose to test the bird repellency of this material and 3 isomers to European starlings (Sturnus vulgaris ). Ortho-aminoacetophenone was repellent at concentrations less than or equal to 0.01% in both choice and no-choice feeding tests. The other structural isomers (meta-, para-, alpha-) were less effective. Chemically, the results suggest that hydrogen-bonded ring structure formation and basicity predict bird repellent activity. We speculate that methyl anthranilate and OAP are avoided because of perceptual and/or chemical similarities. JF - Journal of Wildlife Management AU - Mason, J R AU - Clark, L AU - Shah, P S AD - USDA, Anim. and Plant Health Insp. Serv., Denver Wildl. Res. Cent., c/o Monell Chem. Senses Cent., 3500 Market St., Philadelphia, PA 19104-3308, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 334 EP - 340 VL - 55 IS - 2 SN - 0022-541X, 0022-541X KW - repellancy KW - isomers KW - ortho-aminoacetophenone KW - methyl-anthranilate KW - Ecology Abstracts KW - Sturnus vulgaris KW - D 04672:Mammals KW - D 04710:Control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16011599?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Wildlife+Management&rft.atitle=Ortho-aminoacetophenone+repellency+to+birds%3A+Similarities+to+methyl+anthranilate.&rft.au=Mason%2C+J+R%3BClark%2C+L%3BShah%2C+P+S&rft.aulast=Mason&rft.aufirst=J&rft.date=1991-01-01&rft.volume=55&rft.issue=2&rft.spage=334&rft.isbn=&rft.btitle=&rft.title=Journal+of+Wildlife+Management&rft.issn=0022541X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Sturnus vulgaris ER - TY - JOUR T1 - MiteSim - a simulation model of the Banks grass mite (Acari: Tetranychidae) and the predatory mite, Neoseiulus fallacis (Acari: Phytoseiidae) on maize: Model development and validation. AN - 16009573; 2580846 AB - A simulation model (MiteSim) of the mite predator/prey system consisting of Banks grass mite (BGM), Oligonychus pratensis (Banks), and the predatory mite (NEO), Neoseiulus fallacis (Garman), was developed and validated. This model included the effects of temperature, humidity and predation and was coupled to a comprehensive plant-microenvironment model (Cupid). Leaf temperatures, stomatal and boundary layer resistances, and canopy air temperature and humidity are calculated by Cupid. A submodel (POPVPD) uses this information from Cupid to calculate leaf surface humidity. Mite developmental rates and fecundity are each calculated as a function of both leaf surface temperature and humidity in MiteSim. NEO consumption rates are calculated as a function of temperature and prey density. The model predicted the predator/prey population dynamics well for a laboratory microcosm. JF - Ecological Modelling AU - Berry, J S AU - Holtzer, TO AU - Norman, J M AD - Rangeland Insect Lab., USDA Agric. Res. Serv., Bozeman, MT 59717-0366, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 291 EP - 317 VL - 53 IS - 3-4 SN - 0304-3800, 0304-3800 KW - predatory-prey interactions KW - models KW - ecology KW - mites KW - temperature KW - predator prey equations KW - thermal variables measurement KW - MiteSim KW - Acari KW - Neoseiulus fallacis KW - Oligonychus pratensis KW - Phytoseiidae KW - Tetranychidae KW - Zea mays KW - agriculture KW - humidity KW - population dynamics KW - simulation KW - Entomology Abstracts; Ecology Abstracts KW - D 04660:Arachnids KW - Z 05205:Populations & general ecology KW - D 04003:Modeling, mathematics, computer applications KW - Z 05156:Techniques UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16009573?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Modelling&rft.atitle=MiteSim+-+a+simulation+model+of+the+Banks+grass+mite+%28Acari%3A+Tetranychidae%29+and+the+predatory+mite%2C+Neoseiulus+fallacis+%28Acari%3A+Phytoseiidae%29+on+maize%3A+Model+development+and+validation.&rft.au=Berry%2C+J+S%3BHoltzer%2C+TO%3BNorman%2C+J+M&rft.aulast=Berry&rft.aufirst=J&rft.date=1991-01-01&rft.volume=53&rft.issue=3-4&rft.spage=291&rft.isbn=&rft.btitle=&rft.title=Ecological+Modelling&rft.issn=03043800&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Oligonychus pratensis; Neoseiulus fallacis; Zea mays; Acari; Tetranychidae; Phytoseiidae; humidity; agriculture; simulation; population dynamics ER - TY - JOUR T1 - Influence of feed ingredients on the flavor quality of farm-raised catfish. AN - 16009327; 2581949 AB - Channel catfish (Ictalurus punctatus ) were grown from 75 g to 150 g on 21 experimental diets to examine the influence of commonly used feed ingredients on the flavor quality of the fish. Feed components, at levels used in commercial feeds, were substituted individually in semi-purified diets. A trained sensory panel evaluated the flavor of the experimental fish using quantitative sensory techniques. While the trained panelists could discriminate among some diets on the basis of particular flavor attributes, untrained laboratory personnel representing the average consumer were not able to discern differences. The significance of the findings for the farm-raised catfish industry in that the practice of least-cost formulation for feeds may be followed without concern that the flavor quality of the fish will be affected adversely. JF - Aquaculture AU - Johnsen, P B AU - Dupree, H K AD - USDA, Agric. Res. Serv., Southern Reg. Res. Cent., P.O. Box 19687, New Orleans, LA 70179, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 139 EP - 150 VL - 96 IS - 2 SN - 0044-8486, 0044-8486 KW - effects KW - feeding experiments KW - feeds KW - fish culture KW - flavor KW - human food KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Chemoreception Abstracts; ASFA Aquaculture Abstracts KW - diets KW - Freshwater KW - Ictalurus punctatus KW - food composition KW - aquaculture KW - R 18121:Flavor & aroma KW - Q3 08582:Fish culture KW - Q1 08582:Fish culture UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16009327?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aquaculture&rft.atitle=Influence+of+feed+ingredients+on+the+flavor+quality+of+farm-raised+catfish.&rft.au=Johnsen%2C+P+B%3BDupree%2C+H+K&rft.aulast=Johnsen&rft.aufirst=P&rft.date=1991-01-01&rft.volume=96&rft.issue=2&rft.spage=139&rft.isbn=&rft.btitle=&rft.title=Aquaculture&rft.issn=00448486&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - feeding experiments; food composition; aquaculture; diets; human food; feeds; flavor; Ictalurus punctatus; Freshwater ER - TY - JOUR T1 - Identification of a gene for resistance to wheat streak mosaic virus in maize. AN - 16001808; 2566121 AB - Wheat streak mosaic virus (WSMV) induces generalized mosaic symptoms in selected maize inbreds. During 1988 and 1989, WSMV was detected in many lines in our maize nursery. WSMV symptoms were associated with the expression of the polymitotic (po) marker in a B73 genetic background. The polymitotic locus is on the short arm of maize chromosome 6. An isolate of WSMV (WSMV-W) from naturally infected plants was used to rub-inoculate greenhouse-grown maize plants segregating (po/po or po/+)B73, and the symptom responses of these plants confirmed the presence of a gene linked to po that controlled resistance to WSMV. Restriction fragment length polymorphism (RFLP) analysis located this gene on either the short arm of chromosome 6 or on the long arm proximal to the RFLP marker locus UMC59. JF - Phytopathology AU - McMullen, MD AU - Louie, R AD - USDA, ARS and Dep. Agron., Ohio Agric. Res. and Dev. Cent., Wooster, OH 44691, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 624 EP - 627 VL - 81 IS - 6 SN - 0331-949X, 0331-949X KW - wheat streak mosaic virus KW - mosaic disease KW - lines KW - chromosome 6 KW - segregation KW - Genetics Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Virology & AIDS Abstracts KW - disease resistance KW - genes KW - gene mapping KW - Zea mays KW - restriction fragment length polymorphism KW - V 22187:Control & treatment KW - A 01030:General KW - A 01026:Gramineous crops KW - G 07357:GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16001808?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Phytopathology&rft.atitle=Identification+of+a+gene+for+resistance+to+wheat+streak+mosaic+virus+in+maize.&rft.au=McMullen%2C+MD%3BLouie%2C+R&rft.aulast=McMullen&rft.aufirst=MD&rft.date=1991-01-01&rft.volume=81&rft.issue=6&rft.spage=624&rft.isbn=&rft.btitle=&rft.title=Phytopathology&rft.issn=0331949X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Zea mays; disease resistance; genes; gene mapping; restriction fragment length polymorphism ER - TY - JOUR T1 - Isolation and characterization of p-coumaroyl esterase from the anaerobic fungus Neocallimastix strain MC-2. AN - 15998189; 2565942 AB - An extracellular p-coumaroyl esterase produced by the anaerobic fungus Neocallimastix strain MC-2 released p-coumaroyl groups from O-(5-O-((E)-p-coumaroyl)- alpha -L-arabinofuranosyl)-(1 arrow right 3)-O- beta -D-xylopyranosyl-(1 arrow right 4)-D-xylopyranose (PAXX). The esterase was purified 121-fold from culture medium in successive steps involving ultrafiltration, column chromatography on S-Sepharose and hydroxylapatite, isoelectric focusing, and gel filtration. The native enzyme had an apparent mass of 11 kDa under nondenaturing conditions and a mass of 5.8 kDa under denaturing conditions, suggesting that the enzyme may exist as a dimer. The isoelectric point was 4.7, and the pH optimum was 7.2. The purified esterase had 100 times more activity towards PAXX than towards the analogous feruloyl ester (FAXX). The apparent K sub(m) and V sub(max) of the purified p-coumaroyl esterase for PAXX at pH 7.2 and 40 degree C were 19.4 mu M and 5.1 mu mol min super(-1) mg super(-1), respectively. JF - Applied and Environmental Microbiology AU - Borneman, W S AU - Ljungdahl, L G AU - Hartley, R D AU - Akin, DE AD - Richard B. Russell Agric. Res. Cent., ARS, USDA, Athens, GA 30613, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 2337 EP - 2344 VL - 57 IS - 8 SN - 0099-2240, 0099-2240 KW - Neocallimastix KW - activity KW - cell walls KW - characterization KW - digestion KW - extracellular enzymes KW - p-coumaroyl esterase KW - plants KW - purification KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - A 01006:Enzymes & cofactors KW - K 03020:Fungi UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15998189?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Isolation+and+characterization+of+p-coumaroyl+esterase+from+the+anaerobic+fungus+Neocallimastix+strain+MC-2.&rft.au=Borneman%2C+W+S%3BLjungdahl%2C+L+G%3BHartley%2C+R+D%3BAkin%2C+DE&rft.aulast=Borneman&rft.aufirst=W&rft.date=1991-01-01&rft.volume=57&rft.issue=8&rft.spage=2337&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - extracellular enzymes ER - TY - JOUR T1 - Effects of honey bees on colonies of Exoneura asimillima , an Australian native bee. AN - 15997450; 2566440 AB - Honey bee hives were placed, during two consecutive summers, in an experimental site which contained natural and artificially placed colonies of Exoneura asimillima , a semi-social, native bee. Two classes of colonies were studied: founders, and established colonies. Nests and contents were collected from an experimental site and three control sites following several months of exposure at the experimental site to the apiary honey bee population. Nest contents were analyzed for differences among sites in colony population parameters which could have been caused by resource competition with introduced honey bees. Colony founding and overall colony survival were also considered. During the first season, the average number of large larvae plus prepupae per colony was significantly higher in the experimental site than in the control site. In the experimental site during the second season there were, relative to the control sites, significantly fewer total numbers of adult males and females in established nests and in all nests combined, significantly more immatures of all stages in founder nests and significantly lower adult male:female ratio. JF - Australian journal of ecology. Oxford AU - Sugden, E A AU - Pyke, G H AD - USDA, ARS, Subtrop. Agric. Res. Lab., Honey Bee Res. Unit, 2413 E. Highw. 83, Weslaco, TX 78596, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 171 EP - 181 VL - 16 IS - 2 SN - 0307-692X, 0307-692X KW - environmental impact KW - Exoneura asimillima KW - Entomology Abstracts; Ecology Abstracts KW - Apis mellifera KW - introduced species KW - indigenous species KW - Australia KW - Hymenoptera KW - Apidae KW - population dynamics KW - competition KW - Z 05208:Social entomology KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15997450?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Australian+journal+of+ecology.+Oxford&rft.atitle=Effects+of+honey+bees+on+colonies+of+Exoneura+asimillima+%2C+an+Australian+native+bee.&rft.au=Sugden%2C+E+A%3BPyke%2C+G+H&rft.aulast=Sugden&rft.aufirst=E&rft.date=1991-01-01&rft.volume=16&rft.issue=2&rft.spage=171&rft.isbn=&rft.btitle=&rft.title=Australian+journal+of+ecology.+Oxford&rft.issn=0307692X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Apis mellifera; Hymenoptera; Apidae; Australia; population dynamics; introduced species; indigenous species; competition ER - TY - JOUR T1 - Seasonal flight patterns of Scolytidae (Coleoptera) in black walnut plantations in North Carolina and Illinois. AN - 15995826; 2563375 AB - The seasonal flight patterns of 74 species of Scolytidae collected in window traps in black walnut plantations in North Carolina and Illinois are described and compared. Flying height distributions and seasonal flight activities of Xyleborinus saxeseni (Ratzeburg), Xyleborus affinis Eichhoff, Xyleborus xylographus (Say), and Xylosandrus germanus (Blandford) are considered in detail. JF - Coleopterists Bulletin AU - Weber, B C AU - McPherson, JE AD - USDA Forest Serv., 12th and Independence Ave., S.W., P.O. Box 96090, Washington, DC 20090, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 45 EP - 56 VL - 45 IS - 1 SN - 0010-065X, 0010-065X KW - Scolytidae KW - plantations KW - Ecology Abstracts; Entomology Abstracts KW - USA, North Carolina KW - Coleoptera KW - USA, Illinois KW - phenology KW - Juglans nigra KW - flight activity KW - Z 05197:Habits & life histories KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15995826?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Coleopterists+Bulletin&rft.atitle=Seasonal+flight+patterns+of+Scolytidae+%28Coleoptera%29+in+black+walnut+plantations+in+North+Carolina+and+Illinois.&rft.au=Weber%2C+B+C%3BMcPherson%2C+JE&rft.aulast=Weber&rft.aufirst=B&rft.date=1991-01-01&rft.volume=45&rft.issue=1&rft.spage=45&rft.isbn=&rft.btitle=&rft.title=Coleopterists+Bulletin&rft.issn=0010065X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Juglans nigra; Coleoptera; USA, North Carolina; USA, Illinois; flight activity; phenology ER - TY - JOUR T1 - Fungitoxic effects of Balansia cyperi . AN - 15995270; 2573032 AB - Fungitoxic effects of the fungus Balansia cyperi infecting the sedge Cyperus rotundus were examined. Comparisons of fungal colonizers of B. cyperi -infected and uninfected C. rotundus showed Rhizoctonia solani to inhabit leaves from uninfected plants but not leaves from B. cyperi -infected plants. In vitro bioassays with solvent extracts of B. cyperi mycelia and culture filtrates showed growth inhibition of test fungi, including Fusarium oxysporum and R. solani . Solvent extracts of leaves from B. cyperi -infected plants inhibited growth of most test fungi including F. oxysporum, R. oryzae , and R. solani . Extracts from uninfected plants inhibited the latter two species but to a lesser degree. Results suggest that B. cyperi infecting C. rotundus potentially may deter infection of its host by other more pathogenic fungi. JF - Mycologia AU - Stovall, ME AU - Clay, K AD - South. Reg. Res. Cent., ARS, USDA, 1100 Robert E. Lee Blvd., New Orleans, LA 70179, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 288 EP - 295 VL - 83 IS - 3 SN - 0027-5514, 0027-5514 KW - Balansia cyperi KW - antifungal activity KW - prevention KW - infection KW - extracts KW - leaves KW - Rhizoctonia oryzae KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Cyperus rotundus KW - endophytes KW - Rhizoctonia solani KW - Fusarium oxysporum KW - A 01028:Others KW - K 03089:Fungi: plant UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15995270?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mycologia&rft.atitle=Fungitoxic+effects+of+Balansia+cyperi+.&rft.au=Stovall%2C+ME%3BClay%2C+K&rft.aulast=Stovall&rft.aufirst=ME&rft.date=1991-01-01&rft.volume=83&rft.issue=3&rft.spage=288&rft.isbn=&rft.btitle=&rft.title=Mycologia&rft.issn=00275514&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Cyperus rotundus; Fusarium oxysporum; Rhizoctonia solani; endophytes ER - TY - JOUR T1 - Improved media for selecting nitrate-nonutilizing mutants in Aspergillus flavus . AN - 15993909; 2572956 AB - Selection and identification of nitrate-nonutilizing (nit) mutants of Aspergillus flavus was compared on six chlorate-containing agar media. Three isolates of A. flavus were used. Nit mutants isolated comprised three phenotypic classes, equivalent to niaD, nirA super(-), and cnx mutants of A. nidulans). There were significant differences among isolates and among media in number and types of nit mutants isolated. The most effective medium contained only nitrate as a nitrogen source, whereas most previously described media for isolation of nit mutants contain both nitrate and an amino acid. Morphology of nit mutants was more distinctive on this medium than on other media. The nitrate-only medium yielded mainly niaD mutants; other media yielded more nirA super(-) mutants, which complement niaD mutants. Few cnx mutants were found. Use of a nitrate-only medium in conjunction with another medium should optimize isolation of nit mutants and complementary pairs of mutants. JF - Mycologia AU - Bayman, P AU - Cotty, P J AD - USDA, South. Reg. Res. Cent., P.O. Box 19687, New Orleans, LA 70179, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 311 EP - 316 VL - 83 IS - 3 SN - 0027-5514, 0027-5514 KW - Aspergillus flavus KW - selection KW - nitrate KW - chlorate KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Microbiology Abstracts A: Industrial & Applied Microbiology KW - media (selective) KW - deficient mutant KW - nutrient utilization KW - media (culture) KW - K 03079:Fungi KW - K 03069:Fungi KW - A 01117:Fungi KW - K 03074:Fungi UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15993909?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mycologia&rft.atitle=Improved+media+for+selecting+nitrate-nonutilizing+mutants+in+Aspergillus+flavus+.&rft.au=Bayman%2C+P%3BCotty%2C+P+J&rft.aulast=Bayman&rft.aufirst=P&rft.date=1991-01-01&rft.volume=83&rft.issue=3&rft.spage=311&rft.isbn=&rft.btitle=&rft.title=Mycologia&rft.issn=00275514&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - media (selective); media (culture); deficient mutant; nutrient utilization ER - TY - JOUR T1 - Evidence for a novel insecticidally active exotoxin produced by the HD 116 strain of Bacillus thuringiensis var. morrisoni . AN - 15991607; 2575835 AB - Liquid chromatographic and bioassay data provide evidence for a novel exotoxin produced by the HD 116 strain of Bacillus thuringiensis var. morrisoni . The exotoxin from HD 116 differs from the well known beta-exotoxin produced by the HD 59 strain of Bacillus thuringiensis var. thuringiensis . Chromatograms of aliquots of filtered fermentation broth taken before and after inoculation with the organisms HD 116 and HD 59 were compared. Based on retention times of the obtained peaks, chromatographic fractions were obtained and activity against first instar larvae of the Colorado potato beetle (Coleoptera: Chrysomelidae) was determined. Our conclusion that the new exotoxin may be a diphosphate analog of thuringiensin is based on a comparison of relative retention times among several adenine nucleotides. We have tentatively named this new extracellular exotoxin sigma-exotoxin. JF - Journal of Entomological Science AU - Argauer, R J AU - Cantwell, GE AU - Cantelo, W W AD - Environ. Chem. Lab., Nat. Resour. Inst., USDA-ARS, Beltsville, MD 20705, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 205 EP - 213 VL - 26 IS - 2 SN - 0749-8004, 0749-8004 KW - Bacillus thuringiensis KW - subsp.morrisoni KW - liquid chromatography KW - Bacillus thuringiensis morrisoni KW - Chrysomelidae KW - Coleoptera KW - Leptinotarsa decemlineata KW - biological control KW - exotoxins KW - pathogens KW - toxicity KW - Entomology Abstracts; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - A 01014:Others KW - Z 05182:Pathology KW - W 30513:Pest control KW - A 01023:Others UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15991607?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Entomological+Science&rft.atitle=Evidence+for+a+novel+insecticidally+active+exotoxin+produced+by+the+HD+116+strain+of+Bacillus+thuringiensis+var.+morrisoni+.&rft.au=Argauer%2C+R+J%3BCantwell%2C+GE%3BCantelo%2C+W+W&rft.aulast=Argauer&rft.aufirst=R&rft.date=1991-01-01&rft.volume=26&rft.issue=2&rft.spage=205&rft.isbn=&rft.btitle=&rft.title=Journal+of+Entomological+Science&rft.issn=07498004&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Chrysomelidae; Coleoptera; Leptinotarsa decemlineata; toxicity; pathogens; exotoxins; biological control ER - TY - JOUR T1 - Evaluation of airborne video imagery for distinguishing black mangrove (Avicennia germinans ) on the lower Texas Gulf Coast. AN - 15988772; 2555227 AB - Airborne color-infrared (CIR) video imagery was evaluated for mapping black mangrove (Avicennia germinans ) populations on the lower Texas gulf coast. Video imagery of black mangrove sites was obtained in December 1989. Results showed that black mangrove populations had a distinct red signature on the CIR video imagery that could be separated from other vegetation, soil, and water. Computer-based image analyses of the imagery showed that black mangrove populations could be quantified. Airborne video data provides a near-real-time tool for distinguishing and delineating black mangrove communities and should be useful for assessing damage to populations following catastrophic weather events such as freezes and tropical storms. Aerial surveys are also less costly to conduct with video than with photography. JF - Journal of Coastal Research AU - Everitt, J H AU - Escobar, DE AU - Judd, F W AD - USDA-Agric. Res. Serv., Remote Sens. Res. Unit, 2413 E. Highw. 83, Weslaco, TX 78596-8344, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1169 EP - 1173 VL - 7 IS - 4 SN - 0749-0208, 0749-0208 KW - USA, Texas Coast KW - airborne sensing KW - infrared imagery KW - quantitative distribution KW - remote sensing KW - vegetation cover KW - Ecology Abstracts; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Marine KW - Avicennia germinans KW - videotape recordings KW - ASW, USA, Texas KW - mangroves KW - aerial photography KW - O 1070:Ecology/Community Studies KW - Q1 08382:Ecological techniques and apparatus KW - Q1 08221:General KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15988772?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Coastal+Research&rft.atitle=Evaluation+of+airborne+video+imagery+for+distinguishing+black+mangrove+%28Avicennia+germinans+%29+on+the+lower+Texas+Gulf+Coast.&rft.au=Everitt%2C+J+H%3BEscobar%2C+DE%3BJudd%2C+F+W&rft.aulast=Everitt&rft.aufirst=J&rft.date=1991-01-01&rft.volume=7&rft.issue=4&rft.spage=1169&rft.isbn=&rft.btitle=&rft.title=Journal+of+Coastal+Research&rft.issn=07490208&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - quantitative distribution; mangroves; airborne sensing; vegetation cover; aerial photography; infrared imagery; videotape recordings; Avicennia germinans; ASW, USA, Texas; Marine ER - TY - JOUR T1 - Effect of C sub(6) to C sub(9) alkenals on aflatoxin production in corn, cottonseed, and peanuts. AN - 15987796; 2556769 AB - The effect on aflatoxin production in Aspergillus flavus -inoculated corn, cottonseed, and peanuts in static culture in the presence of gaseous phase C sub(6) to C sub(9) alkenals was investigated. Aflatoxin B sub(1) production was stimulated in corn at the lowest alkenal concentration (1- mu l level) tested. Aflatoxin B sub(1) was completely eliminated at the highest alkenal concentrations (20- mu l level) tested in both treated corn and cottonseed cultures. JF - Applied and Environmental Microbiology AU - Zeringue, HJ Jr AD - South. Reg. Res. Cent., ARS, USDA, P.O. Box 19687, New Orleans, LA 70179, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 2433 EP - 2434 VL - 57 IS - 8 SN - 0099-2240, 0099-2240 KW - alkenals KW - inhibition KW - biosynthesis KW - grain KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Arachis hypogaea KW - Aspergillus flavus KW - aflatoxins KW - Gossypium hirsutum KW - Zea mays KW - seeds KW - A 01022:Mycotoxins KW - K 03082:Mycotoxins UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15987796?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Effect+of+C+sub%286%29+to+C+sub%289%29+alkenals+on+aflatoxin+production+in+corn%2C+cottonseed%2C+and+peanuts.&rft.au=Zeringue%2C+HJ+Jr&rft.aulast=Zeringue&rft.aufirst=HJ&rft.date=1991-01-01&rft.volume=57&rft.issue=8&rft.spage=2433&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aspergillus flavus; Gossypium hirsutum; Arachis hypogaea; Zea mays; aflatoxins; seeds ER - TY - JOUR T1 - Potential of Gliocladium roseum for biocontrol of Verticillium dahliae . AN - 15986417; 2557302 AB - A bioassay system was developed to evaluate fungi for biocontrol potential against Verticillium dahliae . Microsclerotia of V. dahliae were embedded in squares of nylon mesh. The squares were buried in nonsterile soil amended with preparations of the test fungi grown on vermiculite/wheat bran (3:1, w/w). After recovery from soil, viability of the microsclerotia was assessed by observing growth of V. dahliae on agar medium. Gliocladium roseum was the most effective species among 11 fungi tested. No viable microsclerotia were recovered from soils amended with G. roseum at a rate of 1.0% (w/w). The isolate of G. roseum used, the ratio of vermiculite to bran in the preparation, and the rate of antagonist preparation added to soil all significantly affected the viability of microsclerotia. JF - Phytopathology AU - Keinath AU - Fravel AU - Papavizas, G C AD - USDA ARS, Plant Sci. Inst., Biocontrol Plant Dis. Lab., Beltsville, MD 20705, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 644 EP - 648 VL - 81 IS - 6 SN - 0331-949X, 0331-949X KW - Gliocladium roseum KW - infection KW - early dying KW - Solanum tuberosum KW - Verticillium dahliae KW - biological control KW - plant diseases KW - sclerotia KW - wilt KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - A 01028:Others KW - K 03089:Fungi: plant KW - A 01031:Antifungal & fungicidal agents KW - W 30513:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15986417?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Phytopathology&rft.atitle=Potential+of+Gliocladium+roseum+for+biocontrol+of+Verticillium+dahliae+.&rft.au=Keinath%3BFravel%3BPapavizas%2C+G+C&rft.aulast=Keinath&rft.aufirst=&rft.date=1991-01-01&rft.volume=81&rft.issue=6&rft.spage=644&rft.isbn=&rft.btitle=&rft.title=Phytopathology&rft.issn=0331949X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Verticillium dahliae; Solanum tuberosum; biological control; wilt; plant diseases; sclerotia ER - TY - JOUR T1 - A study of cornstarch granule digestion by an unusually high molecular weight alpha -amylase secreted by Lactobacillus amylovorus . AN - 15984489; 2557081 AB - The cells of Lactobacillus amylovorus (NRRL B-4540), grown in a medium containing 2% cornstarch as the sole carbon source, secreted an amylase activity that rapidly solubilized cornstarch. Fourier transform infrared (FTIR) spectroscopic analyses showed that 80-90% of starch was consumed by bacteria in a 10-day-old culture medium. The remnant of starch granules digested in the culture medium inoculated with the cells of L. amylovorus have also lost their characteristic iodine-binding capacity as visualized by starch dye-binding microplate assay and light microscopy. Scanning electron microscopy (SEM) of granules from a 48-h culture medium showed hollow and fragmented granules with a pitting phenomenon characteristically produced by alpha -amylase activity. Analysis of an enzyme preparation from a culture medium of L. amylovorus revealed that the putative enzyme appears to be a single protein band of unusually high M sub(r) (150,000) on SDS gels stained for amylase activity. JF - Current Microbiology AU - Imam, SH AU - Burgess-Cassler, A AU - Cote, G L AU - Gordon, SH AU - Baker, F L AD - Biopolym. Res. Unit, Natl. Cent. Agric. Util. Res., ARS, USDA, 1815 N. University St., Peoria, IL 61604, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 365 EP - 370 VL - 22 IS - 6 SN - 0343-8651, 0343-8651 KW - Lactobacillus amylovorus KW - high molecular weight KW - activity KW - degradation KW - alpha -amylase KW - Zea mays KW - starch grains KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - W 30401:Enzymes and cofactors KW - A 01006:Enzymes & cofactors KW - J 02728:Enzymes KW - A 01016:Microbial degradation KW - W 30540:Energy, minerals and chemical feedstocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15984489?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Current+Microbiology&rft.atitle=A+study+of+cornstarch+granule+digestion+by+an+unusually+high+molecular+weight+alpha+-amylase+secreted+by+Lactobacillus+amylovorus+.&rft.au=Imam%2C+SH%3BBurgess-Cassler%2C+A%3BCote%2C+G+L%3BGordon%2C+SH%3BBaker%2C+F+L&rft.aulast=Imam&rft.aufirst=SH&rft.date=1991-01-01&rft.volume=22&rft.issue=6&rft.spage=365&rft.isbn=&rft.btitle=&rft.title=Current+Microbiology&rft.issn=03438651&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Zea mays; starch grains ER - TY - JOUR T1 - Diversity of Xanthomonas campestris pv. citrumelo strains associated with epidemics of citrus bacterial spot in Florida citrus nurseries: Correlation of detached leaf, monoclonal antibody, and restriction fragment length polymorphism assays. AN - 15981347; 2551878 AB - The heterogeneity of 194 previously uncharacterized strains of Xanthomonas campestris pv. citrumelo isolated from citrus bacterial spot epidemics in four citrus nurseries in central Florida was evaluated by virulence reactions on detached leaves, reaction to a panel of monoclonal antibodies (MAbs), and reaction to a panel of restriction fragment length polymorphism (RFLP) probes. Detached-leaf assays were performed on the 194 strains that had been differentiated into five serological groups based on reactions with six MAbs. A subset of 27 strains, selected because of their diverse reactions to MAbs and the detached-leaf assay, were differentiated into five reaction types by RFLP analysis. There was good agreement between serological reaction patterns and RFLP results. Both assays were capable of distinguishing strongly aggressive from less aggressive strains as indicated by detached-leaf assay. JF - Phytopathology AU - Gottwald, T R AU - Alvarez, A M AU - Hartung, J S AU - Benedict, A A AD - USDA-ARS, Hortic. Res. Lab., Orlando, FL 32802, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 749 EP - 753 VL - 81 IS - 7 SN - 0331-949X, 0331-949X KW - spot KW - pv.citrumelo KW - strains KW - virulence KW - USA, Florida KW - leaves KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - Citrus KW - restriction fragment length polymorphism KW - serotyping KW - monoclonal antibodies KW - Xanthomonas campestris KW - J 02880:Plant diseases KW - A 01027:Fruit trees UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15981347?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Phytopathology&rft.atitle=Diversity+of+Xanthomonas+campestris+pv.+citrumelo+strains+associated+with+epidemics+of+citrus+bacterial+spot+in+Florida+citrus+nurseries%3A+Correlation+of+detached+leaf%2C+monoclonal+antibody%2C+and+restriction+fragment+length+polymorphism+assays.&rft.au=Gottwald%2C+T+R%3BAlvarez%2C+A+M%3BHartung%2C+J+S%3BBenedict%2C+A+A&rft.aulast=Gottwald&rft.aufirst=T&rft.date=1991-01-01&rft.volume=81&rft.issue=7&rft.spage=749&rft.isbn=&rft.btitle=&rft.title=Phytopathology&rft.issn=0331949X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Xanthomonas campestris; Citrus; serotyping; monoclonal antibodies; restriction fragment length polymorphism ER - TY - JOUR T1 - Life history of the western pine shoot borer (Lepidoptera: Olethreutidae) and effects on lodgepole pine in central Oregon. AN - 15980740; 2550836 AB - The biology of the western pine shoot borer, Eucosma sonomana Kearfott, was investigated on young lodgepole pine (Pinus contorta Dougl.) from 1987 through 1989 in central Oregon. In the stands studied, 65-80% of the terminals were infested. About 50% of the infested terminals contained two or more larvae. Symptoms of attack on lodgepole pine (short needles, short terminal shoots, dead shoots, and exit holes) were similar to those ponderosa pine (P. ponderosa Douglas ex Laws.). Our observations suggest that exclusion of shoot borers increased the average height growth in two young lodgepole pine stands by approximately equals 24% per year. At intermediate elevations for lodgepole pine (1,340-1,370 m), moth flight and oviposition began in April with the accumulation of 55 degree-days (DD) above 5.5 degree C and before terminal growth on lodgepole pine had begun. The first larvae appeared in May at 240 DD, when moth flight and 75% complete and terminal growth on lodgepole pine was 40% complete. Larvae began leaving terminals for winter hibernation in early July at 600 DD, when terminal growth was 99% complete; the last larvae left in mid-August at 940 DD. JF - Journal of Economic Entomology AU - Mitchell, R G AU - Sower, L L AD - Pac. Northwest Res. Stn., USDA, Forest Serv., Portland, OR 97208, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 206 EP - 211 VL - 84 IS - 1 SN - 0022-0493, 0022-0493 KW - USA, Oregon KW - Eucosma sonomana KW - Ecology Abstracts; Entomology Abstracts KW - Pinus contorta KW - life history KW - infestation KW - Lepidoptera KW - Olethreutidae KW - pest attack KW - Z 05197:Habits & life histories KW - Z 05203:Relations to plants KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15980740?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Life+history+of+the+western+pine+shoot+borer+%28Lepidoptera%3A+Olethreutidae%29+and+effects+on+lodgepole+pine+in+central+Oregon.&rft.au=Mitchell%2C+R+G%3BSower%2C+L+L&rft.aulast=Mitchell&rft.aufirst=R&rft.date=1991-01-01&rft.volume=84&rft.issue=1&rft.spage=206&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Olethreutidae; Lepidoptera; Pinus contorta; pest attack; life history; infestation ER - TY - JOUR T1 - Environmental profile of Drunella (Eatonella) doddsi (Needham) (Ephemeroptera: Ephemerellidae). AN - 15980620; 2544279 AB - Data from 813 stream stations in 11 western states (USA) have been analyzed to provide a description of the niche width of Drunella (Eatonella) doddsi Needham. The concept of niche width refers to a species' distribution according to environmental conditions, reflecting environmental tolerances. Drunella doddsi was found over a broad range of elevations, and average minimum stream flows. However, its distribution was highly correlated to streams with moderate to high gradients, coarse substrates, dense riparian vegetation, low to moderate levels of alkalinity, very low levels of sulfates, and low specific conductance. This narrow niche width seems to indicate an intolerance of D. doddsi to many types of environmental conditions. Specific habitat selection also requires competitive prevalence over other species that would utilize that habitat. JF - Journal of freshwater ecology. La Crosse, WI AU - Mangum, F A AU - Winget, R N AD - Intermt. Reg., USDA, For. Serv., Federal Build. 324-25th St., Ogden, UT 84401, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 11 EP - 22 VL - 6 IS - 1 SN - 0270-5060, 0270-5060 KW - altitude KW - biological surveys KW - niche breadth KW - niches KW - streams KW - ASFA 1: Biological Sciences & Living Resources; Entomology Abstracts; Ecology Abstracts KW - environmental factors KW - Ephemerellidae KW - Freshwater KW - Drunella doddsi KW - USA KW - Ephemeroptera KW - habitat selection KW - competition KW - Q1 08482:Ecosystems and energetics KW - D 04659:Insects KW - Z 05210:Aquatic entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15980620?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+freshwater+ecology.+La+Crosse%2C+WI&rft.atitle=Environmental+profile+of+Drunella+%28Eatonella%29+doddsi+%28Needham%29+%28Ephemeroptera%3A+Ephemerellidae%29.&rft.au=Mangum%2C+F+A%3BWinget%2C+R+N&rft.aulast=Mangum&rft.aufirst=F&rft.date=1991-01-01&rft.volume=6&rft.issue=1&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=Journal+of+freshwater+ecology.+La+Crosse%2C+WI&rft.issn=02705060&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - environmental factors; habitat selection; biological surveys; competition; altitude; streams; Ephemerellidae; Ephemeroptera; Drunella doddsi; USA; Freshwater ER - TY - JOUR T1 - Effects of cotton plant allelochemicals and nutrients on behavior and development of tobacco budworm. AN - 15977410; 2550768 AB - Female moths of the tobacco budworm, Heliothis virescens (F.), oviposit in the terminals of the cotton plant, Gossypium hirsutum (L.). The hatched larvae migrate to the terminal area and then to small squares (buds), on which they feed, finally burrowing into the anthers where they grow and develop. They attempt to avoid gossypol glands as they feed. The calyx crown of resistant lines (which is avoided) is high in the terpenoid aldehydes (TAs) including gossypol. HPLC data showed that the gossypol content of both susceptible and resistant glanded lines is equal, while the hemigossypolone and heliocides H sub(1) and H sub(2) are greatly increased in resistant lines and presumably are more closely associated with resistance. Analysis for total amino acids in cotton square tissues showed that there was a gradation from the calyx and calyx crown, which were lowest, to the anthers, the site of final insect development, which were highest. Synthetic diets mimicking amino acid distribution in anthers were found to be successful for larval growth and development. JF - Journal of Chemical Ecology AU - Hedin, P A AU - Parrott, W L AU - Jenkins, J N AD - Crop Sci. Res. Lab., USDA-ARS, Mississippi State, MS 39762-5367, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1107 EP - 1122 VL - 17 IS - 6 SN - 0098-0331, 0098-0331 KW - allelochemicals KW - effects on KW - behaviour KW - feeding behaviour KW - Ecology Abstracts; Animal Behavior Abstracts; Entomology Abstracts; Chemoreception Abstracts KW - development KW - plants KW - Lepidoptera KW - Noctuidae KW - Heliothis virescens KW - host plants KW - Gossypium hirsutum KW - nutrients KW - oviposition KW - Z 05197:Habits & life histories KW - D 04659:Insects KW - Y 25693:Insects KW - Z 05199:Feeding KW - Z 05196:Environmental effects KW - R 18052:Feeding KW - Z 05192:Reproductive behavior UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15977410?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Effects+of+cotton+plant+allelochemicals+and+nutrients+on+behavior+and+development+of+tobacco+budworm.&rft.au=Hedin%2C+P+A%3BParrott%2C+W+L%3BJenkins%2C+J+N&rft.aulast=Hedin&rft.aufirst=P&rft.date=1991-01-01&rft.volume=17&rft.issue=6&rft.spage=1107&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lepidoptera; Heliothis virescens; Gossypium hirsutum; Noctuidae; plants; nutrients; development; host plants; oviposition ER - TY - JOUR T1 - Effect of immunosuppression with cyclophosphamide, cyclosporin, or dexamethasone on Salmonella colonization of broiler chicks. AN - 15976010; 2549879 AB - One-day-old broiler chicks were divided into four groups: untreated controls and three groups treated with the immunosuppressive drugs cyclophosphamide, cyclosporin, or dexamethasone on days 1-4 of age. On day 5, all groups were challenged orally with 10 super(4) Salmonella typhimurium). Suppression of immunocompetency was demonstrated in the treatment groups by significant decrease (P < 0.05) in weights of bursas of Fabricius, and diminished mitogen-induced T and B lymphocyte blastogenesis and cutaneous basophil hypersensitivity responses. There were no significant differences among the four groups in the number of Salmonella in the cecal contents or in the number of cecal-culture-positive chicks on day 10 post-challenge at 15 days of age. Results indicated that impairment of B or T lymphocyte responses had little influence on the resistance of young chicks to Salmonella cecal colonization. JF - Avian Diseases AU - Corrier, DE AU - Elissalde, M H AU - Ziprin, R L AU - DeLoach, J R AD - USDA, ARS, Food Anim. Prot. Res. Lab., Route 5, Box 810, College Station, TX 77840, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 40 EP - 45 VL - 35 IS - 1 SN - 0005-2086, 0005-2086 KW - Salmonella typhimurium KW - cyclophosphamide KW - cyclosporin KW - chickens KW - Microbiology Abstracts B: Bacteriology KW - immunosuppression KW - Salmonella KW - colonization KW - J 02861:Microflora UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15976010?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+Diseases&rft.atitle=Effect+of+immunosuppression+with+cyclophosphamide%2C+cyclosporin%2C+or+dexamethasone+on+Salmonella+colonization+of+broiler+chicks.&rft.au=Corrier%2C+DE%3BElissalde%2C+M+H%3BZiprin%2C+R+L%3BDeLoach%2C+J+R&rft.aulast=Corrier&rft.aufirst=DE&rft.date=1991-01-01&rft.volume=35&rft.issue=1&rft.spage=40&rft.isbn=&rft.btitle=&rft.title=Avian+Diseases&rft.issn=00052086&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Salmonella; immunosuppression; colonization ER - TY - JOUR T1 - Unresponsiveness of vaccinated BALB/c mice to a second inoculation of lipopolysaccharide from Brucella abortus strain 2308. AN - 15975672; 2549908 AB - A study was conducted to determine whether the protection induced in mice by a primary inoculation of lipopolysaccharide from Brucella abortus would be enhanced by a second inoculation given at different time intervals. Protection was challenged by exposure of the mice to a virulent culture of B. abortus strain 2308. Reduced mean viable count and/or splenic weights were the criteria of protection. There was no significant difference (P > 0.05) in the protective responses among mice given a single inoculation. Vaccinated mice were significantly (P < 0.05) better protected than were nonvaccinated mice. Mice given vaccinal inoculations simultaneous with challenge exposure were less protected (P < 0.001) than were mice vaccinated prior to challenge, but were better protected (P < 0.010) than were nonvaccinated mice. JF - Veterinary Microbiology AU - Pugh, GW Jr AU - Phillips, M AU - Tabatabai, L B AU - McDonald, T J AD - Natl. Anim. Dis. Cent., ARS, USDA, P.O. Box 70, Ames, IA 50010, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 167 EP - 177 VL - 26 IS - 1-2 SN - 0378-1135, 0378-1135 KW - Brucella abortus KW - lipopolysaccharides KW - Immunology Abstracts; Microbiology Abstracts B: Bacteriology KW - immunoglobulin M KW - immunoglobulin G KW - immunity KW - vaccination KW - J 02834:Vaccination and immunization KW - F 06807:Active immunization UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15975672?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Veterinary+Microbiology&rft.atitle=Unresponsiveness+of+vaccinated+BALB%2Fc+mice+to+a+second+inoculation+of+lipopolysaccharide+from+Brucella+abortus+strain+2308.&rft.au=Pugh%2C+GW+Jr%3BPhillips%2C+M%3BTabatabai%2C+L+B%3BMcDonald%2C+T+J&rft.aulast=Pugh&rft.aufirst=GW&rft.date=1991-01-01&rft.volume=26&rft.issue=1-2&rft.spage=167&rft.isbn=&rft.btitle=&rft.title=Veterinary+Microbiology&rft.issn=03781135&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - vaccination; immunity; immunoglobulin M; immunoglobulin G ER - TY - JOUR T1 - Production of the siderophore aerobactin by a halophilic pseudomonad. AN - 15973666; 2545921 AB - A bacterial strain, isolated from a cyanobacterial culture, was identified as Pseudomonas sp. strain X40. Under iron-limiting conditions, the Pseudomonas sp. produced aerobactin, a dihydroxamate siderophore previously found only in the family Enterobacteriaceae. Aerobactin was identified by electrophoretic mobility, spectrophotometric titration, proton nuclear magnetic resonance spectroscopy, mass spectrometry, acid hydrolysis, and biological activity. Aerobactin was used as a siderophore in the Pseudomonas sp. and Escherichia coli . Two iron-repressed outer membrane proteins were observed in the Pseudomonas sp., neither of which had electrophoretic mobility identical to that of the aerobactin outer membrane receptor protein from E. coli . DNA hybridization assays showed no hybridization to the aerobactin genes from the E. coli plasmid pColV, indicating that the genetic determinants for aerobactin production by Pseudomonas strain X40 differ substantially from those found in the archetypic enteric plasmid pColV-K30. JF - Applied and Environmental Microbiology AU - Buyer, J S AU - Lorenzo, Vde AU - Neilands, J B AD - Soil Microb. Syst. Lab., Build. 318 BARC-E, ARS, USDA, Beltsville, MD 20705, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 2246 EP - 2250 VL - 57 IS - 8 SN - 0099-2240, 0099-2240 KW - aerobactin KW - electrophoretic mobility KW - halophilic bacteria KW - iron KW - production KW - siderophores KW - ASFA 1: Biological Sciences & Living Resources; Microbiology Abstracts B: Bacteriology KW - chelates KW - Pseudomonas KW - biosynthesis KW - Q1 08206:Physiology, biochemistry, biophysics KW - J 02732:Other cell constituents and metabolites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15973666?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Production+of+the+siderophore+aerobactin+by+a+halophilic+pseudomonad.&rft.au=Buyer%2C+J+S%3BLorenzo%2C+Vde%3BNeilands%2C+J+B&rft.aulast=Buyer&rft.aufirst=J&rft.date=1991-01-01&rft.volume=57&rft.issue=8&rft.spage=2246&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - chelates; biosynthesis; iron; siderophores; halophilic bacteria; electrophoretic mobility; Pseudomonas ER - TY - JOUR T1 - Comparison of culture methods for production of Colletotrichum truncatum spores for use as a mycoherbicide. AN - 15972702; 2547093 AB - Four culture systems were compared: dialysis membranes (MF); liquid shake flasks (LF); solid particles with humidity control (SFC); and solid particles without humidity control (SFE). A Plackett-Burman fractional factorial experimental design was employed with 10 total variables. Eight media components, plus two levels of inoculum, were tested in all systems. Other variables were light vs. dark for MF, agitation level for LF, vermiculite vs. rice hulls for SFC, and particle size for SFE. High yeast extract (1 g/l) produced more spores than low (0.3 g/l) for all culture systems. Carbohydrate (sucrose) at 20 g/l produced more spores than at 40 g/l for SFC. MgSO sub(4) multiplied by 7H sub(2)O at 2 g/l was better than none for LF and SFC. For MF, LF, SFC, and SFE, respectively, the overall average numbers of spores per ml of medium were 0.53, 0.72, 0.28, and 0.073 x 10 super(7), while the highest numbers of spores were 1.25, 2.75, 1.52, and 0.46 x 10 super(7). JF - FEMS Microbiology Letters AU - Silman, R W AU - Nelsen, T C AU - Bothast, R J AD - Ferment. Biochem. Res., North. Reg. Res. Cent., USDA, ARS, 1815 N. University St., Peoria, IL 61604, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 69 EP - 74 VL - 79 IS - 1 SN - 0378-1097, 0378-1097 KW - Colletotrichum truncatum KW - production KW - methodology KW - mycoherbicides KW - biological control KW - culture systems KW - herbicides KW - spores KW - weed control KW - weeds KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - A 01014:Others KW - K 03069:Fungi KW - W 30513:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15972702?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=FEMS+Microbiology+Letters&rft.atitle=Comparison+of+culture+methods+for+production+of+Colletotrichum+truncatum+spores+for+use+as+a+mycoherbicide.&rft.au=Silman%2C+R+W%3BNelsen%2C+T+C%3BBothast%2C+R+J&rft.aulast=Silman&rft.aufirst=R&rft.date=1991-01-01&rft.volume=79&rft.issue=1&rft.spage=69&rft.isbn=&rft.btitle=&rft.title=FEMS+Microbiology+Letters&rft.issn=03781097&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - spores; culture systems; biological control; weeds; herbicides; weed control ER - TY - JOUR T1 - Hydrologic effects of two methods of harvesting mature southern pine. AN - 15972145; 2552776 AB - Hydrologic responses to logging with skidders and responses to logging with a cable yarder are compared. After a 23-year calibration with an undisturbed control catchment, mixed stands of shortleaf pine (Pinus echinata ) and hardwoods were clearfelled on two small catchments in the hilly Coastal Plain of north Mississippi and observed for five years. Runoff increased 370 mm (skidded) and 116 mm (yarded) during the first year with 1876 mm of rainfall, and 234 mm (skidded) and 228 mm (yarded) during the second year when 1388 mm of precipitation equaled the calibration mean. Sediment concentrations for the yarded catchment during the first two years averaged 641 and 1,629 mg/L, respectively, and yields were 6,502 and 12,086 kg/ha. Compared to calibration means of 74 mg/L and 142 kg/ha, these extreme values can be attributed largely to transport of sediment stored in the channel and to erosion of subsurface flow paths. JF - Water Resources Bulletin AU - Ursic, S J AD - USDA, Forest Serv., South. Forest Exp. Stn., Forest Hydrol. Lab., P.O. Box 947, Oxford, MS 38655, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 303 EP - 315 VL - 27 IS - 2 SN - 0043-1370, 0043-1370 KW - Pinus echinata KW - USA, Mississippi, Coastal Plain KW - forest industry KW - forestry KW - harvesting machines KW - hydrology KW - man-induced effects KW - ASFA 3: Aquatic Pollution & Environmental Quality; Health & Safety Science Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - erosion KW - sediment transport KW - Freshwater KW - runoff KW - sediments KW - H SE1.20:FORESTRY KW - Q2 09264:Sediments and sedimentation KW - Q2 09171:Dynamics of lakes and rivers KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15972145?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Bulletin&rft.atitle=Hydrologic+effects+of+two+methods+of+harvesting+mature+southern+pine.&rft.au=Ursic%2C+S+J&rft.aulast=Ursic&rft.aufirst=S&rft.date=1991-01-01&rft.volume=27&rft.issue=2&rft.spage=303&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Bulletin&rft.issn=00431370&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - sediment transport; forest industry; erosion; runoff; sediments; man-induced effects; harvesting machines; forestry; Pinus echinata; Freshwater ER - TY - JOUR T1 - An improved invert emulsion with high water retention for mycoherbicide delivery. AN - 15965309; 2542487 AB - An invert emulsion with low viscosity and excellent water-holding properties was developed for delivery of fungal weed pathogens (mycoherbicides. Alternaria cassiae , a pathogen of sicklepod, proliferated after incorporation of spores in the emulsion. The oil phase (CDQ-1) contained paraffin wax, a paraffinic spray oil, and an unsaturated monoglyceride emulsifier (Myverol 18-99). The oil phase was mixed 1:1 (by weight) with water to form the invert, which was sprayed onto glass plates for testing of water retention properties. Water contents ranged from 22% (with A. cassiae present) to 41% (without fungus) for 0.6 to 0.7-mm super(2) spray deposits after 24-h storage at 21 C and 65% relative humidity. An invert emulsion containing lactofen was prepared using the CDQ-1 formulation. JF - Weed Technology AU - Connick, WJ Jr AU - Daigle, D J AU - Quimby, PC Jr AD - South. Reg. Res. Cent., USDA, ARS, New Orleans, LA 70179, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 442 EP - 444 VL - 5 IS - 2 SN - 0890-037X, 0890-037X KW - Alternaria cassiae KW - emulsions KW - inoculum KW - spores KW - mycoherbicides KW - paraffin KW - Cassia obtusifolia KW - biological control KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - A 01028:Others KW - K 03089:Fungi: plant KW - W 30513:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15965309?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Weed+Technology&rft.atitle=An+improved+invert+emulsion+with+high+water+retention+for+mycoherbicide+delivery.&rft.au=Connick%2C+WJ+Jr%3BDaigle%2C+D+J%3BQuimby%2C+PC+Jr&rft.aulast=Connick&rft.aufirst=WJ&rft.date=1991-01-01&rft.volume=5&rft.issue=2&rft.spage=442&rft.isbn=&rft.btitle=&rft.title=Weed+Technology&rft.issn=0890037X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Cassia obtusifolia; biological control ER - TY - JOUR T1 - Cyclohexanedione modification of arginine at the active site of Aspergillus ficuum phytase. AN - 15962120; 2547541 AB - Reaction of Aspergillus ficuum phytase with the arginine specific modifier 1,2-cyclohexanedione causes a rapid loss of activity. The inactivation can be partially reversed by 0.2 M hydroxylamine and exhibits pseudo-first order kinetics. The reaction order and second order rate constant of inactivation were 0.87 and 6.72/M/Min, respectively. Amino acid analysis of modified phytase indicates that about 7 arginine of the total 19 were modified. While the chymotryptic maps of treated and untreated phytase were virtually identical, the tryptic maps had 4 peaks of altered mobility. An Arg containing tripeptide was identified in the phytase which is also present in other phosphohydrolases and may represent one of the labile Arg involved in the formation of the active site. JF - Biochemical and Biophysical Research Communications AU - Ullah, AHJ AU - Cummins, B J AU - Dischinger, HC Jr AD - South. Reg. Res. Cent., ARS, USDA, New Orleans, LA 70124, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 45 EP - 53 VL - 178 IS - 1 SN - 0006-291X, 0006-291X KW - 1,2-cyclohexanedione KW - 3-phytase KW - Aspergillus ficuum KW - active sites KW - activity KW - arginine KW - chemical modification KW - tryptic peptides KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - K 03020:Fungi UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15962120?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemical+and+Biophysical+Research+Communications&rft.atitle=Cyclohexanedione+modification+of+arginine+at+the+active+site+of+Aspergillus+ficuum+phytase.&rft.au=Ullah%2C+AHJ%3BCummins%2C+B+J%3BDischinger%2C+HC+Jr&rft.aulast=Ullah&rft.aufirst=AHJ&rft.date=1991-01-01&rft.volume=178&rft.issue=1&rft.spage=45&rft.isbn=&rft.btitle=&rft.title=Biochemical+and+Biophysical+Research+Communications&rft.issn=0006291X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - CONF T1 - Prospects for genetic control of the gypsy moth. AN - 15959865; 2532402 AB - Male gypsy moths, Lymantria dispar L., that have been irradiated as pupae with a substerilizing dose of gamma radiation (10 krads) and mated with normal females, yield sterile F sub(1) progeny. This inherited sterility enhances classical sterile-insect release methods, since control is exerted on the target population for two generations with a release in the first generation. However, difficulties associated with large-scale deployment of partially sterile males renders genetic control impractical on a large scale. Diapausing F sub(1) eggs (progeny of 10-krad male x normal female) can be stockpiled in the laboratory and released into target populations, greatly simplifying deployment of sterile insects. With the release of F sub(1) eggs, the overflooding of fertile males by F sub(1) sterile males will reduce reproduction in the year of release, provided that F sub(1) egg and larval hatch, establishment, development and survival are comparable to that in wild populations. JF - Forest Ecology and Management AU - Schwalbe, C P AU - Mastro, V C AU - Hansen, R W Y1 - 1991 PY - 1991 DA - 1991 SP - 163 EP - 171 VL - 39 IS - 1-4 KW - Lymantria dispar KW - Lepidoptera KW - Lymantriidae KW - biological control KW - genetic control KW - sterile-release KW - Genetics Abstracts; Biotechnology and Bioengineering Abstracts; Entomology Abstracts KW - USA KW - W 30513:Pest control KW - Z 05207:Agricultural & general applied entomology KW - G 07367:GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15959865?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Prospects+for+genetic+control+of+the+gypsy+moth.&rft.au=Schwalbe%2C+C+P%3BMastro%2C+V+C%3BHansen%2C+R+W&rft.aulast=Schwalbe&rft.aufirst=C&rft.date=1991-01-01&rft.volume=39&rft.issue=1-4&rft.spage=163&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Biological control of Pythium damping-off of cotton with seed-coating preparations of Gliocladium virens . AN - 15959610; 2536894 AB - Air-dried and ground seed-coating preparations of Gliocladium virens were variable in their efficacy for biocontrol of cotton seedling disease induced by Pythium ultimum . Disease suppression was dependent on the proper strain-substrate combination and on the amount of material used. Treatment in excess of that required to coat the seed resulted in phytotoxicity. The loss of disease suppression with time in open storage in the lab was associated with a diminution in the amount of antifungal gliovirin in the preparation and a lengthening of time for propagule germination of the biocontrol agent. Combination treatments with reduced levels of metalaxyl fungicide and the biocontrol preparation resulted in a synergistic effect that gave disease suppression equal to that of full-strength fungicide treatment. JF - Phytopathology AU - Howell, C R AD - South. Crops Res. Lab., USDA, ARS, Rt. Box 805, College Station, TX 77840, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 738 EP - 741 VL - 81 IS - 7 SN - 0331-949X, 0331-949X KW - Gliocladium virens KW - seeds KW - coatings KW - metalaxyl KW - biosynthesis KW - gliovirin KW - Gossypium hirsutum KW - Pythium ultimum KW - biological control KW - damping-off KW - seed treatments KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - A 01028:Others KW - K 03089:Fungi: plant KW - A 01031:Antifungal & fungicidal agents KW - A 01041:N-containing fungicides KW - W 30513:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15959610?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Phytopathology&rft.atitle=Biological+control+of+Pythium+damping-off+of+cotton+with+seed-coating+preparations+of+Gliocladium+virens+.&rft.au=Howell%2C+C+R&rft.aulast=Howell&rft.aufirst=C&rft.date=1991-01-01&rft.volume=81&rft.issue=7&rft.spage=738&rft.isbn=&rft.btitle=&rft.title=Phytopathology&rft.issn=0331949X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pythium ultimum; Gossypium hirsutum; biological control; seed treatments; damping-off ER - TY - JOUR T1 - Predation by two species of histerid beetles on the horn fly. AN - 15958775; 2537100 AB - The histerids, Phelister panamensis LeConte, and Phelister haemorrhous Marseul, were evaluated in the laboratory to determine their potential as biological control agents for immature stages of the horn fly, Haematobia irritans (L.). Phelister panamensis was the better predator, causing significant reductions in horn fly progeny at predator:prey ratios of 1:100 horn fly eggs. Phelister haemorrhous caused significant horn fly population reductions when predator:prey ratios were 1:50 for all stage predation and 1:33.3 for larval-pupal predation. Both species were more efficient as egg predators. JF - Southwestern Entomologist AU - Summerlin, J W AU - Roth, J P AU - Fincher, G T AD - USDA-ARS, Food Anim. Prot. Res. Lab., Route 5, Box 810, College Station, TX 77840, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 45 EP - 50 VL - 16 IS - 1 SN - 0147-1724, 0147-1724 KW - Phelister panamensis KW - Phelister haemorrhous KW - Ecology Abstracts; Entomology Abstracts KW - biological control KW - Coleoptera KW - predation KW - Histeridae KW - Haematobia irritans KW - Diptera KW - Muscidae KW - D 04659:Insects KW - Z 05199:Feeding UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15958775?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Southwestern+Entomologist&rft.atitle=Predation+by+two+species+of+histerid+beetles+on+the+horn+fly.&rft.au=Summerlin%2C+J+W%3BRoth%2C+J+P%3BFincher%2C+G+T&rft.aulast=Summerlin&rft.aufirst=J&rft.date=1991-01-01&rft.volume=16&rft.issue=1&rft.spage=45&rft.isbn=&rft.btitle=&rft.title=Southwestern+Entomologist&rft.issn=01471724&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Haematobia irritans; Histeridae; Coleoptera; Muscidae; Diptera; predation; biological control ER - TY - JOUR T1 - Phytotoxins of microbial origin. AN - 15958012; 2533019 AB - It seems probable that there are many natural product phytotoxins yet to be discovered in microorganisms, and those discoveries may serve two interrelated purposes: the use of natural products as biodegradable agricultural chemicals, and the use of these templates for synthetic elaboration to alter selectivity and, if necessary, specific activity, without deleting the biodegradable properties. Finally, if significant gene splicing is to be accomplished, the characteristics of secondary metabolites must be absolutely known to serve minimally as gene benchmarks, and the metabolic pathways by which these important natural products are derived must be elucidated. Microorganisms have an uncanny way of suppressing genetic expression without deleting it. Consequently, much interdisciplinary work remains to be done. JF - HANDBOOK OF NATURAL TOXINS. 1991. AU - Cutler, H G AD - Richard B. Russell Cent., Agric. Res. Serv., USDA, Athens, GA 30601, USA A2 - Keeler, RF A2 - Tu, AT (eds) Y1 - 1991 PY - 1991 DA - 1991 SN - 1521-446X, 1521-446X KW - phytotoxins KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - reviews KW - toxins KW - genes KW - microorganisms KW - J 02822:Biosynthesis and physicochemical properties KW - K 03040:Fungi KW - A 01023:Others UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15958012?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Bacteriology+Abstracts+%28Microbiology+B%29&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Cutler%2C+H+G&rft.aulast=Cutler&rft.aufirst=H&rft.date=1991-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0824783751&rft.btitle=Phytotoxins+of+microbial+origin.&rft.title=Phytotoxins+of+microbial+origin.&rft.issn=1521446X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - reviews; toxins; microorganisms; genes ER - TY - JOUR T1 - Swainsonine, the locoweed toxin: Analysis and distribution. AN - 15954912; 2532891 AB - The closely related genera Astragalus and Oxytropis of the plant family Leguminosae are circumglobal in distribution. The North American species have been subjected to extensive taxonomic analysis and Astragalus has been classified into 368 species and 184 varieties, whereas Oxytropis has been grouped into 35 species. In the western United States certain individual species of these genera have been classified as "locoweeds" because of their propensity to cause a neurological disease known as locoism in livestock that consume them. Both qualitative and quantitative methods of analysis for swainsonine are now established. These methods will evolve in the direction of greater sensitivity, selectivity, and convenience. Such techniques are merely tools, not an end in themselves. They provide the means with which to study the far more interesting problems of swainsonine occurrence and distribution in plants, fungi and animals. They may at least provide the essential information necessary to prevent livestock losses due to locoweeds, a problem that has affected producers for over a century. JF - HANDBOOK OF NATURAL TOXINS. 1991. AU - Molyneux, R J AU - James, L F AD - Western Reg. Res. Cent., Agric. Res. Serv., USDA, Albany, CA 94706, USA A2 - Keeler, RF A2 - Tu, AT (eds) Y1 - 1991 PY - 1991 DA - 1991 SN - 1521-446X, 1521-446X KW - swainsonine KW - analysis KW - distribution KW - locoweed toxin KW - USA, Western KW - Toxicology Abstracts KW - reviews KW - toxins KW - Oxytropis KW - Astragalus KW - X 24172:Plants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15954912?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Toxicology+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Molyneux%2C+R+J%3BJames%2C+L+F&rft.aulast=Molyneux&rft.aufirst=R&rft.date=1991-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0824783751&rft.btitle=Swainsonine%2C+the+locoweed+toxin%3A+Analysis+and+distribution.&rft.title=Swainsonine%2C+the+locoweed+toxin%3A+Analysis+and+distribution.&rft.issn=1521446X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Astragalus; Oxytropis; reviews; toxins ER - TY - JOUR T1 - Characterization of outer membrane and secreted proteins of Leptospira interrogans serovar pomona . AN - 15953616; 2527186 AB - Outer membrane and secreted proteins were isolated from Leptospira interrogans serovar pomona and characterized by sodium dodecyl sulfate polyacrylamide gel electrophoresis, immunoblot and radio immunoprecipitation techniques. The L. interrogans outer membranes were extracted with Triton X-114 and contained several proteins. The major cellular protein with a molecular mass of 31 kDa was associated exclusively with the L. interrogans outer membrane. Using a whole cell immunoprecipitation method, five hydrophobic, Triton X-114 extractable proteins (22, 26, 31, 36 and 42 kDa) were exposed on the surface of L. interrogans . The 31 kDa protein was heat labile and was a potent antigen in animals experimentally infected with L. interrogans serovar pomona . Several proteins were secreted by L. interrogans including a 60 kDa protein tentatively identified as the L. interrogans hemolysin. JF - Microbial Pathogenesis AU - Zuerner, R L AU - Knudtson, W AU - Bolin, CA AU - Trueba, G AD - Natl. Anim. Dis. Cent., USDA, ARS, P.O. Box 70, Ames, IA 50010, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 311 EP - 322 VL - 10 IS - 4 SN - 0882-4010, 0882-4010 KW - Leptospira interrogans ser. pomona KW - extraction KW - Microbiology Abstracts B: Bacteriology KW - outer membranes KW - hydrophobicity KW - proteins KW - antigens KW - immunoprecipitation KW - J 02832:Antigenic properties and virulence UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15953616?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Microbial+Pathogenesis&rft.atitle=Characterization+of+outer+membrane+and+secreted+proteins+of+Leptospira+interrogans+serovar+pomona+.&rft.au=Zuerner%2C+R+L%3BKnudtson%2C+W%3BBolin%2C+CA%3BTrueba%2C+G&rft.aulast=Zuerner&rft.aufirst=R&rft.date=1991-01-01&rft.volume=10&rft.issue=4&rft.spage=311&rft.isbn=&rft.btitle=&rft.title=Microbial+Pathogenesis&rft.issn=08824010&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - outer membranes; immunoprecipitation; proteins; hydrophobicity; antigens ER - TY - JOUR T1 - Sequence analysis and comparison of avocado fruit and bean abscission cellulases. AN - 15953576; 2533131 AB - A 1700 nucleotide cDNA clone for a bean (Phaseolus vulgaris cv Red Kidney) abscission cellulase (endo-(1,4)- beta -D-glucanase) has been identified and sequenced. This cDNA clone contains a 1485 nucleotide open reading frame which includes coding sequences for a putative signal peptide and mature protein. The nucleotide and deduced amino acid sequences for the bean abscission cellulase are compared to the previously reported sequences of an avocado fruit ripening cellulase. JF - Plant Physiology AU - Tucker, M L AU - Milligan, S B AD - USDA, ARS, Plant Mol. Biol. Lab., Rm. 207, Build. 006, BARC-W, Beltsville, MD 20705, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 928 EP - 933 VL - 95 IS - 3 SN - 0032-0889, 0032-0889 KW - Persea americana KW - Phaseolus vulgaris KW - amino acid sequence KW - cDNA KW - cellulase KW - comparison KW - genes KW - nucleotide sequence KW - predictions KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Genetics Abstracts; Biochemistry Abstracts 2: Nucleic Acids KW - N 14640:Structure & sequence KW - G 07355:GENERAL) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15953576?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Plant+Physiology&rft.atitle=Sequence+analysis+and+comparison+of+avocado+fruit+and+bean+abscission+cellulases.&rft.au=Tucker%2C+M+L%3BMilligan%2C+S+B&rft.aulast=Tucker&rft.aufirst=M&rft.date=1991-01-01&rft.volume=95&rft.issue=3&rft.spage=928&rft.isbn=&rft.btitle=&rft.title=Plant+Physiology&rft.issn=00320889&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - genes ER - TY - JOUR T1 - Seasonal periodicity of fall armyworm, (Lepidoptera: Noctuidae) in the Caribbean Basin and northward to Canada. AN - 15950605; 2529948 AB - Sex pheromone traps were used to monitor the seasonal periodicity of the fall armyworm, Spodoptera frugiperda (J. E. Smith), moth over a 2-year period at eight locations from French Guiana northward to Canada. Results indicated a seasonal progression of movement by fall armyworm from the southern most locations in the United States into Canada. Although the fall armyworm survives throughout the year in the Caribbean Basin, analysis of moth capture and meteorological data for the region provided no direct evidence that this reservoir of continuous populations contributed significantly to the influx of this pest into the temperate regions of North America where it normally does not survive the winter. Weather disturbances along the Atlantic seaboard of the northeastern U.S. and Canada in October 1984 and an associated precipitous decline in moth captures in pheromone traps supports a previous hypothesis of a return (southward) migration by fall armyworm. JF - Journal of Entomological Science AU - Mitchell, E R AU - McNeil, J N AU - Westbrook, J K AU - Silvain, J F AU - Lalanne-Cassou, B AU - Chalfant, R B AU - Pair, S D AU - Waddill, V H AU - Sotomayor-Rios, A AU - Proshold, F I AD - Insect Attractants, Behav., and Basic Biol. Res. Lab., USDA-ARS Gainesville, FL 32604, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 39 EP - 50 VL - 26 IS - 1 SN - 0749-8004, 0749-8004 KW - periodicity KW - migration KW - Animal Behavior Abstracts; Entomology Abstracts; Ecology Abstracts KW - Western Hemisphere KW - Spodoptera frugiperda KW - Lepidoptera KW - winter KW - Noctuidae KW - survival KW - Z 05204:Dispersal & migration KW - D 04659:Insects KW - Y 25653:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15950605?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Entomological+Science&rft.atitle=Seasonal+periodicity+of+fall+armyworm%2C+%28Lepidoptera%3A+Noctuidae%29+in+the+Caribbean+Basin+and+northward+to+Canada.&rft.au=Mitchell%2C+E+R%3BMcNeil%2C+J+N%3BWestbrook%2C+J+K%3BSilvain%2C+J+F%3BLalanne-Cassou%2C+B%3BChalfant%2C+R+B%3BPair%2C+S+D%3BWaddill%2C+V+H%3BSotomayor-Rios%2C+A%3BProshold%2C+F+I&rft.aulast=Mitchell&rft.aufirst=E&rft.date=1991-01-01&rft.volume=26&rft.issue=1&rft.spage=39&rft.isbn=&rft.btitle=&rft.title=Journal+of+Entomological+Science&rft.issn=07498004&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Spodoptera frugiperda; Lepidoptera; Noctuidae; Western Hemisphere; winter; survival ER - TY - JOUR T1 - The insect gut: A new source of ecdysiotropic peptides. AN - 15950235; 2523243 AB - Proctodaea of European corn borer (Ostrinia nubilalis ) and gypsy moth (Lymantria dispar ) last instars (larvae) contain prothoracicotropic factors that stimulate the prothoracic glands (PGs) of the gypsy moth to produce both ecdysone and 3-dehydroecdysone (precursors to the insect molting hormone) in a dose-dependent manner. In a separate in vivo assay, injections of proctodaeal extracts into gypsy moth larvae that were head-ligated before the release of the molt-stimulating brain hormone, PTTH, resulted in a pupal molt. JF - Experientia. Basel AU - Gelman, D B AU - Thyagaraja, B S AU - Kelly, T J AU - Masler, E P AU - Bell, R A AU - Borkovec, AB AD - Insect Reprod. Lab., ARS, USDA, BARC-E, Beltsville, MD 20705, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 77 EP - 80 VL - 47 IS - 1 SN - 0014-4754, 0014-4754 KW - Lepidoptera KW - Lymantria dispar KW - Lymantriidae KW - Ostrinia nubilalis KW - Pyralidae KW - ecdysteroids KW - gut KW - proctodaea KW - prothoracicotropic hormones KW - source KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Entomology Abstracts KW - Z 05174:Hormones UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15950235?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Experientia.+Basel&rft.atitle=The+insect+gut%3A+A+new+source+of+ecdysiotropic+peptides.&rft.au=Gelman%2C+D+B%3BThyagaraja%2C+B+S%3BKelly%2C+T+J%3BMasler%2C+E+P%3BBell%2C+R+A%3BBorkovec%2C+AB&rft.aulast=Gelman&rft.aufirst=D&rft.date=1991-01-01&rft.volume=47&rft.issue=1&rft.spage=77&rft.isbn=&rft.btitle=&rft.title=Experientia.+Basel&rft.issn=00144754&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Population dynamics of waterhyacinth and the biological control agent Neochetina eichhorniae (Coleoptera: Curculionidae) at a southeast Texas location. AN - 15945978; 2527392 AB - Population dynamics of waterhyacinth, Eichhornia crassipes ((Martinus) Solms-Laubach), and a biological control agent, the weevil Neochetina eichhorniae (Warner), were quantified at a site in Wallisville, Tex., during 1987 and 1988. A decline of waterhyacinth occurred that was most pronounced during the 1988 growing season. Changes included decreases in (1) living above water biomass/m super(2) ( approximately equals -57%), (2) living below water biomass/m super(2) ( approximately equals -39%), (3) number of living leaves/plant ( approximately equals -50%), and (4) weight/plant (-40%). Associated with these decreases was a 1.5-fold increase in plant density. The waterhyacinth was severely damaged by N. eichhorniae). Highest numbers of N. eichhorniae adults (>55 weevils/m super(2)) occurred in samples collected 15 Sep 1987. Decreases in the number of weevils for both sexes followed. JF - Environmental Entomology AU - Grodowitz, MJ AU - Stewart, R M AU - Cofrancesco, A F AD - USDA-ARS, Aquat. Plant Manage. Lab., c/o U.S. Army Corps Eng., Waterways Exp. Stn., Vicksburg, MS 39180, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 652 EP - 660 VL - 20 IS - 2 SN - 0046-225X, 0046-225X KW - plant control KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts; Entomology Abstracts KW - herbivores KW - biological control KW - Coleoptera KW - aquatic plants KW - Freshwater KW - Eichhornia crassipes KW - Curculionidae KW - Neochetina eichhorniae KW - USA, Texas KW - population dynamics KW - D 04640:Other angiosperms KW - Q1 08221:General KW - Q1 08442:Population dynamics KW - Z 05207:Agricultural & general applied entomology KW - Q1 08485:Species interactions: pests and control KW - Q1 08301:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15945978?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Population+dynamics+of+waterhyacinth+and+the+biological+control+agent+Neochetina+eichhorniae+%28Coleoptera%3A+Curculionidae%29+at+a+southeast+Texas+location.&rft.au=Grodowitz%2C+MJ%3BStewart%2C+R+M%3BCofrancesco%2C+A+F&rft.aulast=Grodowitz&rft.aufirst=MJ&rft.date=1991-01-01&rft.volume=20&rft.issue=2&rft.spage=652&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - herbivores; biological control; plant control; aquatic plants; population dynamics; Coleoptera; Curculionidae; Neochetina eichhorniae; Eichhornia crassipes; USA, Texas; Freshwater ER - TY - JOUR T1 - Estimating adult coccinellid populations in wheat fields by removal, sweepnet, and visual count sampling. AN - 15945838; 2526860 AB - Removal sampling, sweepnet sampling, and visual count sampling conducted while walking at constant velocity through a field were used to sample populations of adults of five coccinellid species in plots established in spring wheat fields, Triticum aestivum L. Estimates of absolute population density obtained from two 20-min removal samples taken from each of six 5- by 5-m sub-plots per plot proved reliable and were used to convert estimates obtained from sweepnet sampling (180 sweeps per plot) and visual counts (36 min per plot walking at 10 m/min) into absolute estimate of population density. Population density estimates obtained by removed sampling were quite precise except for species with low capture efficiencies and low population densities. Crop plant growth stage influenced the numbers of beetles caught in sweepnet samples and was incorporated in regression models for converting sweepnet catch to absolute density. JF - Canadian Entomologist AU - Elliott, N C AU - Kieckhefer, R W AU - Kauffman, W C AD - USDA, ARS, SPA, Plant Sci. and Water Conserv. Lab., 1301 N. Western Rd., Stillwater, OK 74075, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 13 EP - 22 VL - 123 IS - 1 SN - 0008-347X, 0008-347X KW - population levels KW - Entomology Abstracts; Ecology Abstracts KW - Triticum aestivum KW - Coleoptera KW - sampling KW - agricultural land KW - Coccinellidae KW - Z 05205:Populations & general ecology KW - D 04001:Methodology - general KW - D 04659:Insects KW - Z 05207:Agricultural & general applied entomology KW - Z 05156:Techniques UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15945838?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Entomologist&rft.atitle=Estimating+adult+coccinellid+populations+in+wheat+fields+by+removal%2C+sweepnet%2C+and+visual+count+sampling.&rft.au=Elliott%2C+N+C%3BKieckhefer%2C+R+W%3BKauffman%2C+W+C&rft.aulast=Elliott&rft.aufirst=N&rft.date=1991-01-01&rft.volume=123&rft.issue=1&rft.spage=13&rft.isbn=&rft.btitle=&rft.title=Canadian+Entomologist&rft.issn=0008347X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Triticum aestivum; Coccinellidae; Coleoptera; sampling; agricultural land ER - TY - JOUR T1 - Overwintering survival and emergence pattern for the sunflower beetle (Coleoptera: Chrysomelidae) in the Northern Great Plains. AN - 15945181; 2523928 AB - Adult sunflower beetle, Zygogramma exclamationis (F.), emergence began as early as 20 April and continued for an average of 48 d each year during 1985-1988. First emergence began at a mean of 232 degree-days (DD) (Julian date (JD) 120) and by 395 DD (JD 131), 50% of the adults had emerged. Calendar date and DD were equally accurate in predicting first and 50% emergence. Cumulative emergence of females was more rapid than that of males in three of the four study years, but patterns were similar. Initial feeding by adults probably occurred on native and volunteer sunflower, Helianthus annuus L., because most had emerged before commercial sunflower in North Dakota and Minnesota were available. Winter survival of adults varied from 3 to 51% during the four years, with no difference between inhabitants of clay or sandy-loam soils. JF - Journal of Economic Entomology AU - Charlet, L D AD - North Crop Sci. Lab., USDA-ARS, State University Stn. Fargo, ND 58105, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 132 EP - 135 VL - 84 IS - 1 SN - 0022-0493, 0022-0493 KW - Zygogramma exclamationis KW - Ecology Abstracts; Entomology Abstracts KW - North America KW - Coleoptera KW - overwintering KW - emergence KW - Chrysomelidae KW - Z 05197:Habits & life histories KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15945181?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Overwintering+survival+and+emergence+pattern+for+the+sunflower+beetle+%28Coleoptera%3A+Chrysomelidae%29+in+the+Northern+Great+Plains.&rft.au=Charlet%2C+L+D&rft.aulast=Charlet&rft.aufirst=L&rft.date=1991-01-01&rft.volume=84&rft.issue=1&rft.spage=132&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Chrysomelidae; Coleoptera; North America; overwintering; emergence ER - TY - JOUR T1 - Plant terpenoids as pesticides. AN - 15944886; 2532938 AB - The many thousands of terpenoid compounds produced by plants are a largely untapped potential resource of new pesticides and templates for new pesticide chemistries. Few of these compounds have been tested for any pesticidal activity and even fewer have been adequately screened for a broad range of pesticidal activities. Considering the success of the pyrethroids, the potential for discovery of useful pesticides from other plant terpenoids appears great. Plant-produced terpenoids are more likely to be effective against herbivores and plant pathogens than against weeds. Still, effective and selective herbicides have been developed from native plant terpenoids. Advances in molecular biology and biotechnology may soon give us the option of building terpenoid pesticide synthesis into crop plants and of industrial production of plant secondary compounds, including terpenoids, for pesticidal use. JF - HANDBOOK OF NATURAL TOXINS. 1991. AU - Duke, SO AD - South. Weed Sci. Lab., ARS, USDA, Stoneville, MS 38776, USA A2 - Keeler, RF A2 - Tu, AT (eds) Y1 - 1991 PY - 1991 DA - 1991 SN - 1521-446X, 1521-446X KW - terpenoids KW - plant extracts KW - Health & Safety Science Abstracts; Entomology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Toxicology Abstracts KW - reviews KW - plants KW - fungicides KW - pesticides KW - H SE5.1:BASIC APPROACHES, CONCEPTS, AND THEORY KW - X 24172:Plants KW - A 01031:Antifungal & fungicidal agents KW - Z 05183:Toxicology & resistance UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15944886?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Toxicology+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Duke%2C+SO&rft.aulast=Duke&rft.aufirst=SO&rft.date=1991-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0824783751&rft.btitle=Plant+terpenoids+as+pesticides.&rft.title=Plant+terpenoids+as+pesticides.&rft.issn=1521446X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - plants; pesticides; reviews; fungicides; plant extracts ER - TY - JOUR T1 - Influence of drought stress and low irradiance on plant water relations and structural constituents in needles of Pinus ponderosa seedlings. AN - 15944815; 2524622 AB - The influence of low light on tolerance to prolonged drought was tested on unshaded and shaded seedlings of ponderosa pine (Pinus ponderosa var. scopulorum Dougl. ex Laws.). Unshaded seedlings of P. ponderosa var. ponderosa were also drought stressed to compare varietal responses to drought. The maximum irradiance received by shaded seedlings was 10% of full light. Seedlings were progressively drought stressed until predawn water potentials ( psi sub(x)) were -5.0 MPa. Relative water content (RWC) and the reciprocal of psi sub(x) were analyzed by means of an unusual application of the pressure-volume relationship for determination of RWC of the apoplast (RWC sub(a)), osmotic potential at full turgor ( psi sub(oft)), and ratio of fully turgid weight to dry weight. Major varietal differences in drought response were in RWC sub(a) and needle cellulose content. JF - Tree Physiology AU - Vance, N C AU - Zaerr, J B AD - USDA Forest Serv., Pacific Northwest Res. Stn., 3200 Jefferson Way, Corvallis, OR 97331, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 175 EP - 184 VL - 8 IS - 2 SN - 0829-318X, 0829-318X KW - irradiance KW - morphology KW - drought KW - Ecology Abstracts KW - Pinus ponderosa KW - water relations KW - seedlings KW - D 04635:Conifers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15944815?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tree+Physiology&rft.atitle=Influence+of+drought+stress+and+low+irradiance+on+plant+water+relations+and+structural+constituents+in+needles+of+Pinus+ponderosa+seedlings.&rft.au=Vance%2C+N+C%3BZaerr%2C+J+B&rft.aulast=Vance&rft.aufirst=N&rft.date=1991-01-01&rft.volume=8&rft.issue=2&rft.spage=175&rft.isbn=&rft.btitle=&rft.title=Tree+Physiology&rft.issn=0829318X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinus ponderosa; water relations; seedlings ER - TY - JOUR T1 - Control of Salmonella typhimurium, Listeria monocytogenes , and Escherichia coli 0157:H7 on beef in a model spray chilling system. AN - 15944509; 2531540 AB - Simulated water spray chilling cycles were modified to include acetic acid as a sanitizer. The modified cycles were tested for effectiveness in reducing levels of S. typhimurium, L. monocytogenes , and E. coli 0157:H7 on beef lean and fat tissue. Reductions of up to 3 log cycles were obtained for all three bacterial species on fat tissue. Reduction was less on lean tissue with the same treatments, although the modified cycles reduced populations when compared to the control cycle. JF - Journal of Food Science AU - Dickson, J S AD - USDA-ARS, Roman L. Hruska U.S. Meat Anim. Res. Cent., P.O. Box 166, Clay Center, NE 18933, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 191 EP - 193 VL - 56 IS - 1 SN - 0022-1147, 0022-1147 KW - Salmonella typhimurium KW - acetic acid KW - Microbiology Abstracts B: Bacteriology KW - Listeria monocytogenes KW - cold storage KW - meat KW - Escherichia coli KW - J 02705:Others UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15944509?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Food+Science&rft.atitle=Control+of+Salmonella+typhimurium%2C+Listeria+monocytogenes+%2C+and+Escherichia+coli+0157%3AH7+on+beef+in+a+model+spray+chilling+system.&rft.au=Dickson%2C+J+S&rft.aulast=Dickson&rft.aufirst=J&rft.date=1991-01-01&rft.volume=56&rft.issue=1&rft.spage=191&rft.isbn=&rft.btitle=&rft.title=Journal+of+Food+Science&rft.issn=00221147&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Listeria monocytogenes; Escherichia coli; meat; cold storage ER - TY - JOUR T1 - Fecundity, parity, and adult feeding relationships among Nyssorhynchus malaria vectors from Venezuela. AN - 15943281; 2528134 AB - Relative to their pre-engorgement weights, nulliparous Anopheles nuneztovari consumed significantly smaller blood meals than A. marajoara, A. triannulatus or A. aquasalis . When females were deprived of sugar before blood feeding, only one-quarter of A. nuneztovari , but more than two-thirds of A. marajoara, A. triannulatus and A. aquasalis matured eggs. Sugar feeding before blood or two successive blood meals by sugar-deprived females increased the proportion of nulliparous A. nuneztovari which developed eggs, but not significantly so. Nearly all individuals of nulliparous, sugar-fed A. marajoara, A. triannulatus and A. aquasalis matured eggs after one blood feeding. JF - Memorias do Instituto Oswaldo Cruz AU - Lounibos, L P AU - Conn, J AD - USDA, Med. and Vet. Entomol. Res. Lab., P.O. Box 14565, Gainesville, FL 32604, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 57 EP - 66 VL - 86 IS - 1 SN - 0074-0276, 0074-0276 KW - biological vectors KW - blood meals KW - feeding behaviour KW - human diseases KW - nutritional requirements KW - parity KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Entomology Abstracts KW - disease transmission KW - Anopheles KW - Culicidae KW - blood KW - Freshwater KW - vectors KW - fecundity KW - malaria KW - Venezuela KW - Diptera KW - public health KW - Z 05206:Medical & veterinary entomology KW - Q5 08524:Public health, medicines, dangerous organisms KW - Q1 08425:Nutrition and feeding habits UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15943281?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Memorias+do+Instituto+Oswaldo+Cruz&rft.atitle=Fecundity%2C+parity%2C+and+adult+feeding+relationships+among+Nyssorhynchus+malaria+vectors+from+Venezuela.&rft.au=Lounibos%2C+L+P%3BConn%2C+J&rft.aulast=Lounibos&rft.aufirst=L&rft.date=1991-01-01&rft.volume=86&rft.issue=1&rft.spage=57&rft.isbn=&rft.btitle=&rft.title=Memorias+do+Instituto+Oswaldo+Cruz&rft.issn=00740276&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - nutritional requirements; fecundity; vectors; biological vectors; disease transmission; human diseases; malaria; feeding behaviour; blood; public health; parity; blood meals; Anopheles; Culicidae; Diptera; Venezuela; Freshwater ER - TY - JOUR T1 - Rodenticide flavor characteristics assessed through generalization of conditioned flavor avoidance. AN - 15942333; 2517632 AB - Little information is available concerning the flavor qualities of toxicants or bait formulations. Using generalization of flavor avoidance learning (FAL) in Experiment 1, we investigated the flavor of alpha-chlorohydrin, alpha-naphthylthiourea, calciferol, scilliroside, and sodium (Na) warfarin as perceived by Sprague-Dawley rats (Rattus norvegicus ). Scilliroside was apparently tasteless. For the other toxicant, FAL was observed. Alpha-chlorohydrin and alpha-naphthylthiourea avoidance generalized to "bitter" and "sour" flavors, calciferol avoidance generalized to "bitter" and "sweet" flavors, and Na warfarin FAL generalized to "bitter," sweet," and "salty" flavors. In Experiment 2 we used generalization of FAL to examine the flavor of strychnine in agar or water. Strong FAL was observed, although avoidance generalization was narrower for strychnine in agar than in water. In Experiment 3 we examined FAL among alpha-chlorohydrin, alpha-naphthylthiourea, calciferol, strychnine, and Na warfarin. Flavor avoidance learning and generalization were obtained for some (but not all) rodenticides. JF - Journal of Wildlife Management AU - Mason, J R AU - Reidinger, RF Jr AU - Stewart, C N AD - USDA, Anim. and Plant Health Inspect. Serv., Denver Wildl. Res. Cent., 3500 Market St., Philadelphia, PA 19104, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 188 EP - 198 VL - 55 IS - 1 SN - 0022-541X, 0022-541X KW - rodenticides KW - conditioned avoidance KW - Animal Behavior Abstracts; Ecology Abstracts KW - flavor KW - Rattus norvegicus KW - D 04672:Mammals KW - D 04710:Control KW - Y 25607:Mammals (excluding primates) KW - Y 25887:Mammals (excluding primates) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15942333?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Wildlife+Management&rft.atitle=Rodenticide+flavor+characteristics+assessed+through+generalization+of+conditioned+flavor+avoidance.&rft.au=Mason%2C+J+R%3BReidinger%2C+RF+Jr%3BStewart%2C+C+N&rft.aulast=Mason&rft.aufirst=J&rft.date=1991-01-01&rft.volume=55&rft.issue=1&rft.spage=188&rft.isbn=&rft.btitle=&rft.title=Journal+of+Wildlife+Management&rft.issn=0022541X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Rattus norvegicus; flavor ER - TY - JOUR T1 - Detecting local adaptation in phytophagous insects using repeated measures designs. AN - 15940393; 2515790 AB - Substantial variation among experimental units may occur in studies that address effects of the host plant on insect performance or preference. Efficiency in demonstrating host effects can be enhanced by recognizing that variation among insects is often important and, more particularly, by using an experimental design appropriate for these conditions. Performance data from studies that address local adaptation in phytophagous insects are often analyzed with a two factor ANOVA, testing for host species, population, and host species x population effects. Local adaptation to different hosts would be indicated by a significant interaction term. Commonly, a completely randomized design is employed. A repeated measures design involving an allocation of siblings across host species can provide considerably more powerful tests on the host x population interaction than a completely randomized design. JF - Environmental Entomology AU - Horton AU - Chapman, P L AU - Capinera, J L AD - USDA-ARS, 3706 W. Nob Hill Blvd., Yakima, WA 98902, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 410 EP - 418 VL - 20 IS - 2 SN - 0046-225X, 0046-225X KW - herbivores KW - methodology KW - Ecology Abstracts; Entomology Abstracts KW - host plants KW - adaptations KW - Insecta KW - Z 05205:Populations & general ecology KW - D 04002:Surveying and remote sensing KW - Z 05156:Techniques UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15940393?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Detecting+local+adaptation+in+phytophagous+insects+using+repeated+measures+designs.&rft.au=Horton%3BChapman%2C+P+L%3BCapinera%2C+J+L&rft.aulast=Horton&rft.aufirst=&rft.date=1991-01-01&rft.volume=20&rft.issue=2&rft.spage=410&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Insecta; adaptations; host plants ER - TY - JOUR T1 - Overwintering and spring emergence of three coccinellid species in the coastal plain of South Carolina. AN - 15939398; 2514500 AB - Overwintering sites and spring emergence periods of three commonly occurring coccinellids were studied from 1984 to 1989 in the upper coastal plain area of South Carolina. In addition, experiments were conducted to determine the influence of temperature and photoperiod upon the feeding activity of overwintering Hippodamia convergens (Guerin-Meneville) when removed from hibernation sites. Feeding activity began shortly after removal from hibernation, increased with increasing temperatures and continued during both the photoperiod and the scotoperiod. Broomsedge, Andropogon virginicum L., was found to be an important overwintering site for H. convergens. Coleomegilla maculata (De Geer) and Coccinella septempunctata L. often shared the same overwintering habitat. JF - Environmental Entomology AU - Roach, SH AU - Thomas, WM AD - Cotton Prod. Res. Unit, USDA-ARS, P.O. Box 2131, Florence, SC 29503, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 540 EP - 544 VL - 20 IS - 2 SN - 0046-225X, 0046-225X KW - Hippodamia convergens KW - Ecology Abstracts; Entomology Abstracts KW - Coleoptera KW - emergence KW - Coleomegilla maculata KW - Coccinella septempunctata KW - habitat KW - USA, South Carolina KW - overwintering KW - Coccinellidae KW - Z 05197:Habits & life histories KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15939398?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Overwintering+and+spring+emergence+of+three+coccinellid+species+in+the+coastal+plain+of+South+Carolina.&rft.au=Roach%2C+SH%3BThomas%2C+WM&rft.aulast=Roach&rft.aufirst=SH&rft.date=1991-01-01&rft.volume=20&rft.issue=2&rft.spage=540&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Coccinella septempunctata; Coleomegilla maculata; Coccinellidae; Coleoptera; USA, South Carolina; overwintering; emergence; habitat ER - TY - JOUR T1 - Why do populations of southern pine beetles (Coleoptera: Scolytidae) fluctuate?. AN - 15937194; 2515751 AB - It is widely believed that population outbreaks of the southern pine beetle (Dendroctonus frontalis Zimm.) are caused by vagaries of climate, such as periods of severe drought. According to this view, D. frontalis population dynamics are dominated by density-independent processes. We have statistically analyzed a 30-yr record of D. frontalis activity in east Texas and have assessed the relative roles of density-independent and density-dependent factors in beetle population fluctuations. Regressions of the rate of population change on three climatic variables were not significant. By contrast, both time-series and regression analyses provided strong and consistent evidence for delayed density regulation of D. frontalis populations. Thus, in contrast to previous analyses, we conclude that D. frontalis outbreaks are driven not by stochastic fluctuations of weather, but by some unknown population process acting in a delayed density-dependent manner. JF - Environmental Entomology AU - Turchin, P AU - Lorio, PL Jr AU - Taylor, AD AU - Billings, R F AD - USDA-Forest Serv., Southern Forest Exp. Stn., Pineville, LA 71360, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 401 EP - 409 VL - 20 IS - 2 SN - 0046-225X, 0046-225X KW - Dendroctonus frontalis KW - Ecology Abstracts; Entomology Abstracts KW - Scolytidae KW - Coleoptera KW - pest outbreaks KW - USA, Texas KW - population dynamics KW - Z 05205:Populations & general ecology KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15937194?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Why+do+populations+of+southern+pine+beetles+%28Coleoptera%3A+Scolytidae%29+fluctuate%3F.&rft.au=Turchin%2C+P%3BLorio%2C+PL+Jr%3BTaylor%2C+AD%3BBillings%2C+R+F&rft.aulast=Turchin&rft.aufirst=P&rft.date=1991-01-01&rft.volume=20&rft.issue=2&rft.spage=401&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Scolytidae; Coleoptera; USA, Texas; population dynamics; pest outbreaks ER - TY - JOUR T1 - Dispersal and seasonal occurrence of Noctuidonema guyanense , an ectoparasitic nematode of adult fall armyworm (Lepidoptera: Noctuidae), in the United States. AN - 15932614; 2524988 AB - Migrant Spodoptera frugiperda (J. E. Smith) adult males were collected at 17 widely separated locations throughout the eastern half of the United States and were examined to determine if Noctuidonema guyanense Remillet and Silvain, an ectoparasitic nematode of adult Lepidoptera, were transported with the host. Nematodes were recovered from all locations where moths were captured. Nematode populations and parasitism of fall armyworm males were higher in the eastern states than in the Plains, Midwestern, and Central states (e.g., west Texas, Iowa, and Ohio). Percent parasitism and the number of nematodes per infested fall armyworm changed over time at each location. The initial immigrant fall armyworm males at a given location generally had few or no nematodes. These data suggest that moths with a moderate number of nematodes may be less able to disperse. JF - Journal of Entomological Science AU - Simmons, A M AU - Rogers, CE AD - Insect Biol. and Popul. Manage. Res. Lab., USDA-ARS Tifton, GA 31793-0748, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 136 EP - 148 VL - 26 IS - 1 SN - 0749-8004, 0749-8004 KW - Noctuidonema guyanense KW - Ecology Abstracts; Entomology Abstracts KW - parasites KW - Spodoptera frugiperda KW - phenology KW - dispersal KW - Lepidoptera KW - USA KW - Noctuidae KW - D 04656:Nematodes KW - Z 05205:Populations & general ecology KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15932614?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Entomological+Science&rft.atitle=Dispersal+and+seasonal+occurrence+of+Noctuidonema+guyanense+%2C+an+ectoparasitic+nematode+of+adult+fall+armyworm+%28Lepidoptera%3A+Noctuidae%29%2C+in+the+United+States.&rft.au=Simmons%2C+A+M%3BRogers%2C+CE&rft.aulast=Simmons&rft.aufirst=A&rft.date=1991-01-01&rft.volume=26&rft.issue=1&rft.spage=136&rft.isbn=&rft.btitle=&rft.title=Journal+of+Entomological+Science&rft.issn=07498004&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lepidoptera; Noctuidae; Spodoptera frugiperda; USA; dispersal; phenology; parasites ER - TY - JOUR T1 - Hydrogen oxidation by the host-controlled uptake hydrogenase phenotype of Bradyrhizobium japonicum in symbiosis with soybean host plants. AN - 15930847; 2509854 AB - Symbioses between uptake hydrogenase host-regulated (Hup-hr) phenotypes of Bradyrhizobium japonicum and exotic, agronomically unadapted soybean germ plasm were examined for expression of uptake hydrogenase activity. Determinations for hydrogen evolution and uptake hydrogenase activity identified five plant introduction (PI) lines which formed hydrogen-oxidizing symbioses with strains USDA 61 and PA3 6c. Hup-hr strains belonging to serogroup 94 expressed uptake hydrogenase activity in symbioses with PI 181696 and PI 219655 at rates sufficient to prevent hydrogen from escaping the nodules. The identification of soybean germ plasm forming hydrogen-oxidizing symbioses with Hup-hr bradyrhizobia potentially has implications for enhancing nitrogen fixation efficiency in soybean production. JF - Applied and Environmental Microbiology AU - van Berkum, P AU - Sloger, C AD - Soybean and Alfalfa Res. Lab., ARS, USDA, HH-19, Build. 011, BARC-W, Beltsville, MD 20705, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1863 EP - 1865 VL - 57 IS - 6 SN - 0099-2240, 0099-2240 KW - Bradyrhizobium japonicum KW - oxidation KW - phenotypes KW - symbiosis KW - uptake hydrogenase host-regulated phenotype KW - hydrogen KW - hydrogenase KW - Glycine max KW - germplasm KW - nodulation KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - A 01051:Nitrogen cycle KW - J 02901:Soil and plants KW - W 30514:Soil organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15930847?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Hydrogen+oxidation+by+the+host-controlled+uptake+hydrogenase+phenotype+of+Bradyrhizobium+japonicum+in+symbiosis+with+soybean+host+plants.&rft.au=van+Berkum%2C+P%3BSloger%2C+C&rft.aulast=van+Berkum&rft.aufirst=P&rft.date=1991-01-01&rft.volume=57&rft.issue=6&rft.spage=1863&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Glycine max; nodulation; germplasm ER - TY - JOUR T1 - 1-Naphthyl acetate esterase activity from cultures of the symbiont yeast of the cigarette beetle (Coleoptera: Anobiidae). AN - 15930427; 2509877 AB - The 1-naphthyl acetate esterase activity from the cell-free preparation of cultures of the yeast-like symbiont, Symbiotaphrina kochii Jurzitza ex. W. Gams and v. Arx, of the cigarette beetle, Lasioderma serricorne (F.), was investigated with isoelectric focusing, gel filtration chromatography, selective inhibition, and temperature and solvent stability studies. Gel filtration indicated that activity was predominantly due to one enzyme (or closely related enzyme forms) with a molecular weight of approximately 38,000. The isoelectric point of most of the activity ranged from pH 4.6 to 4.8. The presence of three bands in this region suggested that isoenzymes were present. The apparent K sub(m) for the symbiont esterase was 114 mu M and the V sub(max) was 8.9 nmole/min/mg protein. The symbiont esterase was relatively resistant to acetone, sensitive to temperature treatments, and partially inhibited by relatively high concentrations of organophosphates and thiol reagents, but not by chelators. JF - Journal of Economic Entomology AU - Shen, S K AU - Dowd, P F AD - Zoonotic Dis. Lab., USDA-ARS, BARC-East, Beltsville, MD 20705, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 402 EP - 407 VL - 84 IS - 2 SN - 0022-0493, 0022-0493 KW - 1-naphthyl acetate esterase KW - Anobiidae KW - Coleoptera KW - Lasioderma serricorne KW - Symbiotaphrina kochii KW - activity KW - characterization KW - purification KW - symbionts KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Entomology Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - K 03020:Fungi KW - K 03088:Fungi: animal KW - Z 05200:Symbiosis & commensalism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15930427?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=1-Naphthyl+acetate+esterase+activity+from+cultures+of+the+symbiont+yeast+of+the+cigarette+beetle+%28Coleoptera%3A+Anobiidae%29.&rft.au=Shen%2C+S+K%3BDowd%2C+P+F&rft.aulast=Shen&rft.aufirst=S&rft.date=1991-01-01&rft.volume=84&rft.issue=2&rft.spage=402&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - symbionts ER - TY - JOUR T1 - Cloning and comparison of xylanase genes from ruminal and colonic Bacteroides species. AN - 15930231; 2522819 AB - The gene encoding xylanase activity in the ruminal bacterium Bacteroides ruminicola D31d was cloned and expressed in Escherichia coli with the plasmid vector pUC18. The gene was isolated on a 4.7-kilobase pair partial PstI genomic DNA fragment. The xylanase activity expressed in E. coli was cell associated and could degrade both oatspelt xylan and Remazol Brilliant Blue-xylan. The xylanase did not have detectable activity against carboxymethylcellulose. JF - Current Microbiology AU - Whitehead, T R AU - Lee, DA AD - Ferment. Biochem. Res. Unit, North. Reg. Res. Cent., USDA, ARS, 1815 N. University St., Peoria, IL, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 15 EP - 19 VL - 23 IS - 1 SN - 0343-8651, 0343-8651 KW - xylan endo-1,3- beta -xylosidase KW - cloning KW - gene expression KW - use KW - Escherichia coli KW - comparison KW - Bacteroides KW - genes KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts B: Bacteriology; Genetics Abstracts; Biochemistry Abstracts 2: Nucleic Acids KW - N 14640:Structure & sequence KW - W 30134:Microorganisms KW - G 07320:Bacterial genetics KW - J 02740:Genetics and evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15930231?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Current+Microbiology&rft.atitle=Cloning+and+comparison+of+xylanase+genes+from+ruminal+and+colonic+Bacteroides+species.&rft.au=Whitehead%2C+T+R%3BLee%2C+DA&rft.aulast=Whitehead&rft.aufirst=T&rft.date=1991-01-01&rft.volume=23&rft.issue=1&rft.spage=15&rft.isbn=&rft.btitle=&rft.title=Current+Microbiology&rft.issn=03438651&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Bacteroides; genes ER - TY - JOUR T1 - Structure and composition of streetside trees of residential areas in state of Maryland, U.S.A. AN - 15930120; 2517682 AB - The composition and structure of streetside trees in residential areas were surveyed for three counties within the State of Maryland, U.S.A.: Wicomico, Prince Georges, and Anne Arundel. In the rapidly developing county of Princes Georges, streetside trees were dominated by non-native species. Anne Arundel County, with its moderate urban growth, had a higher percentage of native species than Prince Georges, but a lower percentage than Wicomico. In the slowly developing county of Wicomico, native species dominated its composition. Structurally, each of the three counties had a preponderance of small diameter trees ( 30 cm dbh) than Prince Georges County. JF - ABORIC. J. AU - Zipperer, W C AU - Rowntree, R A AU - Stevens, J C AD - U.S.D.A. For. Serv., Northeastern For. Exp. Stn., SUNY Coll. Environ. Sci. and For., Syracuse, NY 13210, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1 EP - 11 VL - 15 IS - 1 KW - species composition KW - Ecology Abstracts KW - trees KW - urban environments KW - USA, Maryland KW - D 04695:Urban environments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15930120?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ABORIC.+J.&rft.atitle=Structure+and+composition+of+streetside+trees+of+residential+areas+in+state+of+Maryland%2C+U.S.A.&rft.au=Zipperer%2C+W+C%3BRowntree%2C+R+A%3BStevens%2C+J+C&rft.aulast=Zipperer&rft.aufirst=W&rft.date=1991-01-01&rft.volume=15&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=ABORIC.+J.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - USA, Maryland; trees; urban environments ER - TY - JOUR T1 - Infectivity of Serratia marcescens (Eubacteriales: Enterobacteriaceae) in Stomoxys calcitrans (Diptera: Muscidae). AN - 15929812; 2515744 AB - Serratia marcescens Bizio, a facultative pathogen of insects, was isolated from stable flies, Stomoxys calcitrans (L.), collected from Nebraska beef cattle feedlots and dairies. Infection rates in laboratory-reared stable flies infected by topical exposures to the bacterium were 57 and 64% in two experiments. Per os exposures to sucrose and water solutions, and bovine blood inoculated with S. marcescens , produced mortality rates of about 45 and 10%, respectively. JF - Journal of Medical Entomology AU - Watson, D W AU - Petersen, J J AD - USDA-ARS, Midwest Livest. Insects Res. Unit, Univ. Nebraska, Lincoln, NE 68583, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 190 EP - 192 VL - 28 IS - 1 SN - 0022-2585, 0022-2585 KW - Serratia marcescens KW - infectivity KW - Entomology Abstracts; Microbiology Abstracts B: Bacteriology KW - Stomoxys calcitrans KW - mortality KW - Diptera KW - Muscidae KW - J 02870:Invertebrate bacteriology KW - Z 05182:Pathology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15929812?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Medical+Entomology&rft.atitle=Infectivity+of+Serratia+marcescens+%28Eubacteriales%3A+Enterobacteriaceae%29+in+Stomoxys+calcitrans+%28Diptera%3A+Muscidae%29.&rft.au=Watson%2C+D+W%3BPetersen%2C+J+J&rft.aulast=Watson&rft.aufirst=D&rft.date=1991-01-01&rft.volume=28&rft.issue=1&rft.spage=190&rft.isbn=&rft.btitle=&rft.title=Journal+of+Medical+Entomology&rft.issn=00222585&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Stomoxys calcitrans; Muscidae; Diptera; mortality ER - TY - JOUR T1 - Relationship of microhabitat to incidence of house fly (Diptera: Muscidae) immatures and their parasitoids at dairy farms in central New York. AN - 15929008; 2514745 AB - Weekly observations were made on the presence of house fly, Musca domestica L., and stable fly, Stomoxys calcitrans (L.), eggs, larvae, and pupae, during 21 wk at nine dairies in Cayuga County, New York. Laboratory-reared fly pupae were exposed at each site to monitor parasitoid activity. Incidence of fly immatures was significantly related to substrate, moisture, and location, but not to indoor or outdoor exposure. Incidence was greatest at wet sites, particularly in manure, bedding, and feed, and lowest at dry sites. Locations with the highest incidence were lean-to, silo, calf pen, outdoor manure pile, outdoor manure ramp, and manure lagoon. Incidence of Muscidifurax raptor Girault and Sanders, Urolepis rufipes (Ashmead), Spalangia cameroni Perkins (Hymenoptera: Pteromalidae) and total parasitism were positively associated with the presence of fly immatures, but Phygadeuon fumator Gravenhorst (Hymenoptera: Ichneumonidae) was independent. JF - Environmental Entomology AU - Smith, L AU - Rutz, DA AD - Stored-Prod. Insects Res. and Dev. Lab., P.O. Box 22909, USDA-ARS, Savannah, GA 31403, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 669 EP - 674 VL - 20 IS - 2 SN - 0046-225X, 0046-225X KW - Musca domestica KW - Ecology Abstracts; Entomology Abstracts KW - Stomoxys calcitrans KW - dairies KW - Ichneumonidae KW - parasitoids KW - USA, New York KW - microenvironments KW - habitat utilization KW - Hymenoptera KW - Diptera KW - Muscidae KW - Pteromalidae KW - D 04659:Insects KW - Z 05201:Parasitism: entomophagous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15929008?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Relationship+of+microhabitat+to+incidence+of+house+fly+%28Diptera%3A+Muscidae%29+immatures+and+their+parasitoids+at+dairy+farms+in+central+New+York.&rft.au=Smith%2C+L%3BRutz%2C+DA&rft.aulast=Smith&rft.aufirst=L&rft.date=1991-01-01&rft.volume=20&rft.issue=2&rft.spage=669&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Stomoxys calcitrans; Pteromalidae; Ichneumonidae; Hymenoptera; Muscidae; Diptera; USA, New York; microenvironments; parasitoids; habitat utilization; dairies ER - TY - JOUR T1 - Biology and control of jointed goatgrass (Aegilops cylindrica ), a review. AN - 15927872; 2518099 AB - Jointed goatgrass is a winter annual grass weed which is believed to have been introduced into North America as a contaminant in winter wheat seed. This review summarizes jointed goatgrass seed germination, dormancy, physiology, yield loss estimates in winter wheat, and both herbicidal and non-chemical methods of managing jointed goatgrass. JF - Weed Science AU - Donald, W W AU - Ogg, AG Jr AD - USDA, Agric. Res. Serv., Cropping Syst. and Water Quality Res. Unit., Univ. Missouri, Columbia, MO 65211, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 3 EP - 17 VL - 5 IS - 1 SN - 0043-1745, 0043-1745 KW - life history KW - herbicides KW - Ecology Abstracts KW - North America KW - reviews KW - biological control KW - ecophysiology KW - Aegilops cylindrica KW - D 04636:Grasses UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15927872?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Weed+Science&rft.atitle=Biology+and+control+of+jointed+goatgrass+%28Aegilops+cylindrica+%29%2C+a+review.&rft.au=Donald%2C+W+W%3BOgg%2C+AG+Jr&rft.aulast=Donald&rft.aufirst=W&rft.date=1991-01-01&rft.volume=5&rft.issue=1&rft.spage=3&rft.isbn=&rft.btitle=&rft.title=Weed+Science&rft.issn=00431745&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aegilops cylindrica; North America; ecophysiology; biological control; reviews ER - TY - JOUR T1 - Ammonium and glutamate assimilation by tryptophan-catabolic variants of Bradyrhizobium japonicum USDA 26. AN - 15927695; 2501754 AB - Tryptophan-catabolic variants, tan 4b and 18ac, of Bradyrhizobium japonicum USDA 26 were isolated from enrichment cultures in nitrogen (N)-limited media containing either ammonium or glutamate. Presence of exogenous tryptophan (trp) in the medium led to sparse restricted growth and elicited selective growth of tan-coloured variants over that of parental USDA 26. A 36% increase in cellular uptake-accumulation of the ammonia analogue ( super(14)C)-methylamine was found with trp-induced tan 18ac cells over that measured with either ammonium-induced tan 18ac or trp-induced tan 4b. The assimilation patterns of uniformly labelled ( super(14)C)-glutamate also differed when tan 18ac was compared with tan 4b. These studies of tan variants isolated from enrichment cultures suggest that bradyrhizobial populations can be manipulated by changing the N sources that limit their growth. JF - Journal of applied bacteriology. Oxford AU - Kaneshiro, T AD - USDA-ARS-NRRC-PB, 1815 N. University, Peoria, IL 61604, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 66 EP - 70 VL - 70 IS - 1 SN - 0021-8847, 0021-8847 KW - ammonia KW - assimilation KW - variants KW - glutamic acid KW - tryptophan KW - Microbiology Abstracts B: Bacteriology KW - Bradyrhizobium japonicum KW - J 02732:Other cell constituents and metabolites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15927695?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+applied+bacteriology.+Oxford&rft.atitle=Ammonium+and+glutamate+assimilation+by+tryptophan-catabolic+variants+of+Bradyrhizobium+japonicum+USDA+26.&rft.au=Kaneshiro%2C+T&rft.aulast=Kaneshiro&rft.aufirst=T&rft.date=1991-01-01&rft.volume=70&rft.issue=1&rft.spage=66&rft.isbn=&rft.btitle=&rft.title=Journal+of+applied+bacteriology.+Oxford&rft.issn=00218847&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Bradyrhizobium japonicum ER - TY - JOUR T1 - Microhabitat associations of hymenopterous parasitoids that attack house fly pupae at dairy farms in central New York. AN - 15927677; 2514693 AB - Samples of laboratory-reared fly pupae were exposed weekly throughout the fly-breeding season for 2 yr at eight dairy farms. Microhabitats were classified by type of location, substrate, exposure (to sunlight and weather), and substrate moisture content. Total parasitism was fairly evenly distributed over all types of fly-breeding microhabitats; however, several parasitoid species exhibited strong associations with specific types of microhabitats. Muscidifurax raptor Girault and Sanders was most abundant in feed and straw, and occurred primarily at outdoor sites (regardless of moisture), and dry sheltered or indoor sites. Phygadeuon fumator Gravenhorst was most abundant in calf bedding, particularly at moist or wet indoor or sheltered sites, which was where M. raptor was not abundant, and outdoor feed. JF - Environmental Entomology AU - Smith, L AU - Rutz, DA AD - Stored-Prod. Insects Res. and Dev. Lab., USDA-ARS, P.O. Box 22909, Savannah, GA 31403, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 675 EP - 684 VL - 20 IS - 2 SN - 0046-225X, 0046-225X KW - Hymenoptera KW - dairies KW - Ecology Abstracts; Entomology Abstracts KW - parasitoids KW - USA, New York KW - microenvironments KW - habitat utilization KW - Diptera KW - Muscidae KW - D 04659:Insects KW - Z 05201:Parasitism: entomophagous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15927677?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Microhabitat+associations+of+hymenopterous+parasitoids+that+attack+house+fly+pupae+at+dairy+farms+in+central+New+York.&rft.au=Smith%2C+L%3BRutz%2C+DA&rft.aulast=Smith&rft.aufirst=L&rft.date=1991-01-01&rft.volume=20&rft.issue=2&rft.spage=675&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Muscidae; Diptera; USA, New York; microenvironments; parasitoids; habitat utilization ER - TY - JOUR T1 - (Z)-oxacyclotridec-10-en-2-one does not appear to be responsible for resistance to adult alfalfa weevil feeding exhibited by Medicago rugosa . AN - 15927033; 2509193 AB - Steam distillate prepared from leaves of Medicago rugosa Desr. could inhibit feeding by adult alfalfa weevils (Hypera postica (Cyll.) on membrane filters, whereas an equivalent amount of steam distillate prepared using M. sativa L. had no effect on weevil feeding. Earlier work established that a 12-carbon lactone, (Z)-oxacyclotridec-10-en-2-one, was responsible for the feeding deterrent properties of the steam distillate from M. rugosa . The concentration of this volatile varied with plant age and leaf position. The maximum concentration in leaves of M. rugosa (area basis) was estimated, on the basis of tests using an inert substrate, to be too low to cause a detectable inhibition of feeding. No correlation between lactone content and weevil feeding was detected when leaves from similar positions on plants of different ages were used in a multiple choice bioassay. JF - Journal of Chemical Ecology AU - Doss, R P AU - Johnson, KJR AD - USDA-ARS Hortic. Crops Res. Unit, 3420 N.W. Orchard Ave., Corvallis, OR 97330, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 535 EP - 542 VL - 17 IS - 3 SN - 0098-0331, 0098-0331 KW - Medicago rugosa KW - (Z)-oxacyclotridec-10-en-2-one KW - Ecology Abstracts; Entomology Abstracts KW - deterrents KW - Coleoptera KW - feeding KW - Hypera postica KW - pest resistance KW - Curculionidae KW - Z 05203:Relations to plants KW - D 04659:Insects KW - Z 05175:Pheromones, repellents & attractants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15927033?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=%28Z%29-oxacyclotridec-10-en-2-one+does+not+appear+to+be+responsible+for+resistance+to+adult+alfalfa+weevil+feeding+exhibited+by+Medicago+rugosa+.&rft.au=Doss%2C+R+P%3BJohnson%2C+KJR&rft.aulast=Doss&rft.aufirst=R&rft.date=1991-01-01&rft.volume=17&rft.issue=3&rft.spage=535&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Hypera postica; Curculionidae; Coleoptera; pest resistance; feeding; deterrents ER - TY - JOUR T1 - Mint root borer, Fumibotys fumalis (Guenee): Identification and field tests of female sex pheromone gland components. AN - 15924090; 2514968 AB - Compounds identified in sex pheromone gland extracts of female Fumibotys fumalis (Guenee) consisted of (E,E)-10,12-tetradecadienyl acetate, (Z)-11-tetradecenyl acetate, (E)-11-tetradecenyl acetate, and (Z)-9-tetradecenyl acetate in a ratio of 100:18:8:4, respectively. The compounds were identified by electroantennographic, gas chromatographic, mass spectrometric, and chemical derivatization procedures. In mint fields synthetic compounds in gray elastomeric septa at ratios found in the sex pheromone gland and at doses of 3 or 10 mg of the diene produced trap catch comparable to traps baited with three females. JF - Journal of Chemical Ecology AU - Davis, H G AU - McDonough, L M AU - Smithhisler, CL AU - Brown, D F AU - Leonhardt, BA AU - Voerman, S AU - Chapman, P S AD - Agric. Res. Serv., USDA, Yakima, WA 98902, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 249 EP - 258 VL - 17 IS - 2 SN - 0098-0331, 0098-0331 KW - Fumibotys fumalis KW - chemical composition KW - electroantennograms KW - Chemoreception Abstracts; Entomology Abstracts; Ecology Abstracts; Animal Behavior Abstracts KW - Pyralidae KW - Lepidoptera KW - pheromone traps KW - sex pheromone KW - D 04659:Insects KW - Z 05175:Pheromones, repellents & attractants KW - Y 25883:Insects KW - R 18051:Reproductive behavior UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15924090?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Mint+root+borer%2C+Fumibotys+fumalis+%28Guenee%29%3A+Identification+and+field+tests+of+female+sex+pheromone+gland+components.&rft.au=Davis%2C+H+G%3BMcDonough%2C+L+M%3BSmithhisler%2C+CL%3BBrown%2C+D+F%3BLeonhardt%2C+BA%3BVoerman%2C+S%3BChapman%2C+P+S&rft.aulast=Davis&rft.aufirst=H&rft.date=1991-01-01&rft.volume=17&rft.issue=2&rft.spage=249&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lepidoptera; Pyralidae; sex pheromone; pheromone traps ER - TY - JOUR T1 - The developmental gene Knotted-1 is a member of a maize homeobox gene family. AN - 15923973; 2508825 AB - We show that the Kn1 gene encodes a homeodomain-containing protein, the first identified in the plant kingdom. Sequence comparisons strongly suggest that Kn1 acts as a transcription factor. Here we use the Kn1 homeobox to isolate other expressed homeobox genes in maize. The Kn1 homeobox may permit the isolation of genes that, like animal and fungal counterparts, regulate cell fate determination. JF - Nature AU - Vollbrecht, E AU - Veit, B AU - Sinha, N AU - Hake, S AD - USDA-ARS Plant Gene Expression Cent., 800 Buchanan St., Albany, CA 94710, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 241 EP - 243 VL - 350 IS - 6315 SN - 0028-0836, 0028-0836 KW - Knotted-1 gene KW - Zea mays KW - amino acid sequence KW - cDNA KW - gene families KW - gene products KW - genes KW - homeobox KW - nucleotide sequence KW - predictions KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Genetics Abstracts; Biochemistry Abstracts 2: Nucleic Acids KW - N 14640:Structure & sequence KW - G 07357:GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15923973?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature&rft.atitle=The+developmental+gene+Knotted-1+is+a+member+of+a+maize+homeobox+gene+family.&rft.au=Vollbrecht%2C+E%3BVeit%2C+B%3BSinha%2C+N%3BHake%2C+S&rft.aulast=Vollbrecht&rft.aufirst=E&rft.date=1991-01-01&rft.volume=350&rft.issue=6315&rft.spage=241&rft.isbn=&rft.btitle=&rft.title=Nature&rft.issn=00280836&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Host-derived volatiles as attractants and pheromone synergists for driedfruit beetle, Carpophilus hemipterus . AN - 15923200; 2514900 AB - The attractiveness of representative host materials, host extracts, and individual volatiles (primarily carboxylic acids, alcohols, and esters) to Carpophilus hemipterus (L.) (Coleoptera: Nitidulidae) adults in wind-tunnel bioassays was examined. Attractiveness of the materials was examined alone and in combination with the aggregation pheromone. Host materials and extracts were often attractive on their own, and the attractancy was synergized when they were combined with the pheromone. Propanoic and butanoic acids, methanol, 2-propanol, 1-heptanol, methyl butanoate, and propanal were among the most effective attractants relative to the pheromone, but many other compounds significantly synergized the pheromone (typically three- to four fold). Attractiveness and synergism were influenced by the carbon chain length and branching of the substituents. Straight-chain compounds that had at least three carbon atoms were generally effective as synergists. Many branched-chain compounds were also effective synergists. In general, the degree of attractiveness and synergism could be predicted fairly well with the physicochemical steric (Es) parameter, although the lipophilicity (Pi) parameter also appeared to be useful in explaining the lower activity of short-chain substituents. JF - Journal of Chemical Ecology AU - Dowd, P F AU - Bartelt, R J AD - Mycotoxin Res. Unit, Natl. Cent. Agric. Util. Res., USDA, Agric. Res. Serv., Peoria, IL 61604, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 285 EP - 308 VL - 17 IS - 2 SN - 0098-0331, 0098-0331 KW - Carpophilus hemipterus KW - volatiles KW - Chemoreception Abstracts; Ecology Abstracts; Animal Behavior Abstracts; Entomology Abstracts KW - hosts KW - attractants KW - Nitidulidae KW - Coleoptera KW - attractancy KW - aggregation pheromone KW - D 04659:Insects KW - Z 05175:Pheromones, repellents & attractants KW - R 18052:Feeding KW - Y 25883:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15923200?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Host-derived+volatiles+as+attractants+and+pheromone+synergists+for+driedfruit+beetle%2C+Carpophilus+hemipterus+.&rft.au=Dowd%2C+P+F%3BBartelt%2C+R+J&rft.aulast=Dowd&rft.aufirst=P&rft.date=1991-01-01&rft.volume=17&rft.issue=2&rft.spage=285&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Coleoptera; Nitidulidae; aggregation pheromone; hosts; attractancy; attractants ER - TY - JOUR T1 - Seasonal and relative abundance of hymenopterous parasitoids attacking house fly pupae at dairy farms in central New York. AN - 15923043; 2514809 AB - A survey of indigenous parasitoids attacking Musca domestica L. and Stomoxys calcitrans (L.) pupae was conducted for 2 yr at eight dairies by exposing weekly samples of laboratory-reared fly pupae (sentinel bags). Mean relative abundance of each species was 59% Muscidifurax raptor Girault and Sanders, 14% Urolepis rufipes (Ashmead), 11% Phygadeuon fumator Gravenhorst, 10% Spalangia cameroni Perkins, 3% Spalangia nigroaenea Curtis, and 2% Trichomalopsis dubius (Ashmead). Rare species included Pachycrepoideus vindemmiae (Rondani), Nadonia vitripennis (Walker), Dibrachys cavus (Walker), Spalangia nigra Latreille, and Macroneura vesicularis (Retzius). Total parasitism was phenologically synchronized with the house fly population occurring between 17 May and 27 October, but it peaked 1-2 mo after the fly population peaked. JF - Environmental Entomology AU - Smith, L AU - Rutz, DA AD - Stored-Prod. Insects Res. and Dev. Lab., USDA-ARS, P.O. Box 22909, Savannah, GA 31403, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 661 EP - 668 VL - 20 IS - 2 SN - 0046-225X, 0046-225X KW - Musca domestica KW - Ecology Abstracts; Entomology Abstracts KW - Stomoxys calcitrans KW - dairies KW - parasitoids KW - phenology KW - USA, New York KW - Hymenoptera KW - Diptera KW - Muscidae KW - abundance KW - D 04659:Insects KW - Z 05201:Parasitism: entomophagous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15923043?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Seasonal+and+relative+abundance+of+hymenopterous+parasitoids+attacking+house+fly+pupae+at+dairy+farms+in+central+New+York.&rft.au=Smith%2C+L%3BRutz%2C+DA&rft.aulast=Smith&rft.aufirst=L&rft.date=1991-01-01&rft.volume=20&rft.issue=2&rft.spage=661&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Stomoxys calcitrans; Hymenoptera; Muscidae; Diptera; USA, New York; parasitoids; phenology; abundance; dairies ER - TY - JOUR T1 - Aphid transmission of barley yellow dwarf virus: Acquisition access periods and virus concentration requirements. AN - 15922819; 2502843 AB - The duration of access periods and the availability of virus in source plants are two factors that influence the transmission of barley yellow dwarf virus (BYDV) by its aphid vectors. This study was conducted to quantify the relationships among acquisition access period (AAP), virus titer in infected oats, and transmission of three isolates of BYDV from New York by two aphid vector species. Thirteen AAPs, ranging from 15 min to 72 hr, were examine,d and virus titer was quantified from each virus source leaf by using enzyme-linked immunosorbent assay (ELISA). Two leaves from each plant were used as independent virus sources to test the effect of leaf age, in addition to virus titer, on acquisition efficiency. The transmission efficiency of various BYDV isolates is differentially influenced by several factors including aphid vector, length of acquisition feeding period and physiological age of source tissue. In addition, our results suggest that virus titer, as it is affected by age and infection stage of the source tissue, can have a strong influence on acquisition and transmission efficiency of aphid vectors. JF - Phytopathology AU - Gray, S M AU - Power, A G AU - Smith, D M AU - Seaman, A J AU - Altman, N S AD - USDA-ARS and Dep. Plant Pathol., Cornell Univ., Ithaca, NY 14853, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 539 EP - 545 VL - 81 IS - 5 SN - 0331-949X, 0331-949X KW - barley yellow dwarf virus KW - epidemiology KW - time KW - acquisition access period KW - Avena byzantina KW - Entomology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Virology & AIDS Abstracts KW - disease transmission KW - Aphididae KW - vectors KW - Rhopalosiphum padi KW - Sitobion avenae KW - Homoptera KW - Z 05207:Agricultural & general applied entomology KW - A 01026:Gramineous crops KW - V 22186:Transmission UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15922819?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Phytopathology&rft.atitle=Aphid+transmission+of+barley+yellow+dwarf+virus%3A+Acquisition+access+periods+and+virus+concentration+requirements.&rft.au=Gray%2C+S+M%3BPower%2C+A+G%3BSmith%2C+D+M%3BSeaman%2C+A+J%3BAltman%2C+N+S&rft.aulast=Gray&rft.aufirst=S&rft.date=1991-01-01&rft.volume=81&rft.issue=5&rft.spage=539&rft.isbn=&rft.btitle=&rft.title=Phytopathology&rft.issn=0331949X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Rhopalosiphum padi; Sitobion avenae; Aphididae; Homoptera; vectors; disease transmission ER - TY - JOUR T1 - Antagonistic effects of lactobacilli and pediococci to control intestinal colonization by human enteropathogens in live poultry. AN - 15916531; 2502166 JF - Journal of applied bacteriology. Oxford AU - Juven, B J AU - Meinersmann, N J AU - Stern, N J AD - USDA, ARS, Richard B. Russell Agric. Res. Cent., Athens, GA 30613, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 95 EP - 103 VL - 70 IS - 2 SN - 0021-8847, 0021-8847 KW - Lactobacillus KW - antagonism KW - chickens KW - Microbiology Abstracts B: Bacteriology KW - Pediococcus KW - reviews KW - pathogens KW - colonization KW - J 02861:Microflora UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15916531?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+applied+bacteriology.+Oxford&rft.atitle=Antagonistic+effects+of+lactobacilli+and+pediococci+to+control+intestinal+colonization+by+human+enteropathogens+in+live+poultry.&rft.au=Juven%2C+B+J%3BMeinersmann%2C+N+J%3BStern%2C+N+J&rft.aulast=Juven&rft.aufirst=B&rft.date=1991-01-01&rft.volume=70&rft.issue=2&rft.spage=95&rft.isbn=&rft.btitle=&rft.title=Journal+of+applied+bacteriology.+Oxford&rft.issn=00218847&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pediococcus; colonization; pathogens; reviews ER - TY - JOUR T1 - Vegetation and wildland fire: Implications of global climate change. AN - 15914527; 2499178 AB - Climate, vegetation, and fire are interrelated so that any change in one will affect the others. Increases in greenhouse gases, especially carbon dioxide, are expected to increase average surface temperatures and alter precipitation patterns. These changes will alter numerous biochemical processes of vegetative communities. Changes in growth rates, carbon allocation patterns, nutrient cycling, and competitive interactions will lead to direct changes in the structure and species composition of many plant communities. Major shifts in vegetation zones will occur in many regions. Climate change will affect fire potential by influencing the frequency and severity of weather favorable for fire. Climate-driven changes in the structure and composition of plant communities will also affect fire potential by altering the physical and chemical properties of fuels. Changes in timing and severity of fire will modify the rate at which communities respond to climate change. JF - Environment International AU - Ryan, K C AD - For. Serv., USDA, Intermt. Fire Sci. Lab., Missoula, MT 59807, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 169 EP - 178 VL - 17 IS - 2-3 SN - 0160-4120, 0160-4120 KW - fires KW - vegetation patterns KW - Health & Safety Science Abstracts; Ecology Abstracts KW - community composition KW - reviews KW - vegetation KW - carbon cycle KW - climate KW - D 04100:Terrestrial ecosystems - general KW - H SE8.27:FIRES IN NATURAL ENVIRONMENTS UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15914527?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environment+International&rft.atitle=Vegetation+and+wildland+fire%3A+Implications+of+global+climate+change.&rft.au=Ryan%2C+K+C&rft.aulast=Ryan&rft.aufirst=K&rft.date=1991-01-01&rft.volume=17&rft.issue=2-3&rft.spage=169&rft.isbn=&rft.btitle=&rft.title=Environment+International&rft.issn=01604120&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - climate; carbon cycle; community composition; reviews; vegetation; vegetation patterns ER - TY - JOUR T1 - Effect of lactational intensity on extrathyroidal 5'-deiodinase activity in rats. AN - 15912125; 2502477 AB - Concentrations of thyroxine and triiodothyronine in serum and 5'-monodeiodination activity in liver and kidney were studied in lactating Sprague-Dawley rats with different litter sizes. Litter sizes were adjusted at birth to 0 (postpartum nonlactating group), 4, 8, 12, and 16 pups per lactating rat. Serum and tissue samples were collected from lactating rats and pups on d 12 of lactation and from 6 nulliparous females. Nulliparous and postpartum nonlactating rats did not differ in serum thyroxine, triiodothyronine concentrations, or in 5'-deiodinase activity in liver and kidney. The thyroid status of the dam may influence thyroid status and growth of offspring. JF - Journal of Dairy Science AU - Kahl, S AU - Bitman, J AU - Capuco, A V AU - Keys, JE AD - Milk Secretion and Mastitis Lab., USDA, ARS, Livestock and Poult. Sci. Inst., Beltsville, MD 20705, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 811 EP - 818 VL - 74 IS - 3 SN - 0022-0302, 0022-0302 KW - 5'-deiodinase KW - activity KW - kidney KW - lactation KW - liver KW - rats KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15912125?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Dairy+Science&rft.atitle=Effect+of+lactational+intensity+on+extrathyroidal+5%27-deiodinase+activity+in+rats.&rft.au=Kahl%2C+S%3BBitman%2C+J%3BCapuco%2C+A+V%3BKeys%2C+JE&rft.aulast=Kahl&rft.aufirst=S&rft.date=1991-01-01&rft.volume=74&rft.issue=3&rft.spage=811&rft.isbn=&rft.btitle=&rft.title=Journal+of+Dairy+Science&rft.issn=00220302&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Bacillus thuringiensis Berliner and Beauveria bassiana (Balsamo) Vuillimen for European corn borer control: Program for immediate and season-long suppression. AN - 15909036; 2494674 AB - Combinations of Bacillus thuringiensis Berliner subspecies Kurstaki and Beauveria bassiana (Balsamo) Vuillimen formulated on granules were applied separately and in combination to field corn to suppress larval populations of the European corn borer, Ostrinia nubilalis (Huebner). Research was conducted in 2 separate years. Laboratory-reared O. nubilalis eggs or larvae were placed on the plant during either the whorl stage (V6) or the pollen-shedding stage (R1) to simulate first- and second-generation O. nubilalis oviposition periods, respectively. Efficacy was determined by measuring the length of European corn borer tunnels in the corn stalk at harvest time. In the 1st year, first generation, and second generation (of 2nd year) B. thuringiensis and B. bassiana alone and in combination caused significant reductions in tunneling compared with that in the check population. JF - Canadian Entomologist AU - Lewis, L C AU - Bing, LA AD - Corn Insects Res. Unit, USDA ARS MWA, RR 3, Box 45B, Ankeny, IA 50021, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 387 EP - 393 VL - 123 IS - 2 SN - 0008-347X, 0008-347X KW - Bacillus thuringiensis KW - subsp.kurstaki KW - larvae KW - formulations KW - efficacy KW - crop fields KW - Bacillus thuringiensis kurstaki KW - Beauveria bassiana KW - Lepidoptera KW - Ostrinia nubilalis KW - Pyralidae KW - Zea mays KW - biological control KW - Entomology Abstracts; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - A 01014:Others KW - W 30513:Pest control KW - Z 05207:Agricultural & general applied entomology KW - K 03088:Fungi: animal UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15909036?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Entomologist&rft.atitle=Bacillus+thuringiensis+Berliner+and+Beauveria+bassiana+%28Balsamo%29+Vuillimen+for+European+corn+borer+control%3A+Program+for+immediate+and+season-long+suppression.&rft.au=Lewis%2C+L+C%3BBing%2C+LA&rft.aulast=Lewis&rft.aufirst=L&rft.date=1991-01-01&rft.volume=123&rft.issue=2&rft.spage=387&rft.isbn=&rft.btitle=&rft.title=Canadian+Entomologist&rft.issn=0008347X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Bacillus thuringiensis kurstaki; Beauveria bassiana; Ostrinia nubilalis; Zea mays; Pyralidae; Lepidoptera; biological control ER - TY - JOUR T1 - Spatial density dependence in parasitism of Heliothis virescens (Lepidoptera: Noctuidae) by Microplitis croceipes (Hymenoptera: Braconidae) in the field. AN - 15905834; 2491855 AB - A field experiment addressed four questions concerning the interaction between Microplitis croceipes (Cresson) and Heliothis spp.: (1) what is the relation between the proportion of hosts parasitized and host density? (2) does this relation depend on the size of the areas (spatial scale) at which it is measured? (3) what is the relation between parasitoid search rate and host density? and (4) what is the relation between parasitoid distribution and host distribution? To answer these questions a cotton field was artificially infested with various densities of Heliothis virescens (F.). M. croceipes was released uniformly across the field. At the scale of 30 by 60 m plots, the proportion of hosts parasitized by M. croceipes (adjusted for competition with other parasitoid species) increased from 0.41 plus or minus 0.08 (x super(-) plus or minus SE) to 0.60 plus or minus 0.06 as host density increased from 6,178 to 16,896 larvae/ha. JF - Environmental Entomology AU - Hopper, K R AU - Powell, JE AU - King, E G AD - Eur. Parasite Lab., USDA-ARS, 13-15 rue de la Masse, 78910 Orgerus-Behoust, France Y1 - 1991 PY - 1991 DA - 1991 SP - 292 EP - 302 VL - 20 IS - 1 SN - 0046-225X, 0046-225X KW - Heliothis virescens KW - field trials KW - Braconidae KW - Hymenoptera KW - Lepidoptera KW - Microplitis croceipes KW - Noctuidae KW - biological control KW - density dependence KW - host-parasite interactions KW - spatial distribution KW - Biotechnology and Bioengineering Abstracts; Ecology Abstracts; Entomology Abstracts KW - D 04659:Insects KW - Z 05201:Parasitism: entomophagous KW - W 30513:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15905834?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Spatial+density+dependence+in+parasitism+of+Heliothis+virescens+%28Lepidoptera%3A+Noctuidae%29+by+Microplitis+croceipes+%28Hymenoptera%3A+Braconidae%29+in+the+field.&rft.au=Hopper%2C+K+R%3BPowell%2C+JE%3BKing%2C+E+G&rft.aulast=Hopper&rft.aufirst=K&rft.date=1991-01-01&rft.volume=20&rft.issue=1&rft.spage=292&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Microplitis croceipes; Noctuidae; Lepidoptera; Braconidae; Hymenoptera; host-parasite interactions; density dependence; spatial distribution; biological control ER - TY - JOUR T1 - Yellow-bellied sapsuckers feeding at red-cockaded woodpecker resin wells. AN - 15905029; 2492725 JF - Wilson Bulletin AU - Rudolph, D C AU - Conner, R N AU - Schaefer, R R AD - Wildl. Habitat and Silvic. Lab., South. Forest Exp. Stn., USDA Forest Serv., Nacogdoches, TX 75962, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 122 EP - 123 VL - 103 IS - 1 SN - 0043-5643, 0043-5643 KW - feeding behaviour KW - resin wells KW - Ecology Abstracts; Animal Behavior Abstracts KW - interspecific relationships KW - Picoides borealis KW - Sphyrapicus varius KW - D 04671:Birds KW - Y 25496:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15905029?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wilson+Bulletin&rft.atitle=Yellow-bellied+sapsuckers+feeding+at+red-cockaded+woodpecker+resin+wells.&rft.au=Rudolph%2C+D+C%3BConner%2C+R+N%3BSchaefer%2C+R+R&rft.aulast=Rudolph&rft.aufirst=D&rft.date=1991-01-01&rft.volume=103&rft.issue=1&rft.spage=122&rft.isbn=&rft.btitle=&rft.title=Wilson+Bulletin&rft.issn=00435643&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Sphyrapicus varius; Picoides borealis; interspecific relationships ER - TY - JOUR T1 - Effects of base-soluble proteins and methanol-soluble polysaccharides from corn on mycelial growth of Aspergillus flavus . AN - 15904559; 2480754 AB - The antifungal activity of base-soluble proteins (BSP) and methanol-soluble polysaccharides (PS) from Aspergillus flavus resistant (Yellow Creole) and susceptible (Huffman) genotypes of corn were investigated by in vitro studies. Bioassays of fungal growth inhibition in agar media showed antifungal activity by proteins and polysaccharides only from the Huffman genotype. Microgramme quantities of protein and polysaccharides were required to retard fungal growth. The polysaccharides have molecular weights greater than 3.5 kilodaltons. Cathodic PAGE of native protein from the two genotypes showed six protein bands with differences in staining intensity of individual components. SDS-PAGE showed four distinct bands in Yellow Creole that were absent in Huffman. Both of the protein samples contained traces of carbohydrate. Analysis of hydrolyzed polysaccharide from the two genotypes showed different proportions of mannose and glucose. JF - Mycopathologia AU - Neucere, J N AU - Godshall, MA AD - USDA, ARS, South. Reg. Res. Cent., P.O. Box 19687, New Orleans, LA 70179, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 103 EP - 108 VL - 113 IS - 2 SN - 0301-486X, 0301-486X KW - Aspergillus flavus KW - bioassays KW - polysaccharides KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - antifungal agents KW - proteins KW - A 01067:Antifungal & fungicidal KW - K 03063:Effects of physical & chemical factors UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15904559?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mycopathologia&rft.atitle=Effects+of+base-soluble+proteins+and+methanol-soluble+polysaccharides+from+corn+on+mycelial+growth+of+Aspergillus+flavus+.&rft.au=Neucere%2C+J+N%3BGodshall%2C+MA&rft.aulast=Neucere&rft.aufirst=J&rft.date=1991-01-01&rft.volume=113&rft.issue=2&rft.spage=103&rft.isbn=&rft.btitle=&rft.title=Mycopathologia&rft.issn=0301486X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - antifungal agents; proteins ER - TY - JOUR T1 - Salmonellosis prevention. The importance of husbandry and the farm environment. AN - 15901792; 2473175 AB - Most traditional approaches to minimizing and eliminating Salmonella contamination are directed at slaughtering, processing, food service and retail operations. A major control point of public health significance - husbandry and the farm environment - is often overlooked. This paper defines the livestock and poultry husbandry principles on which the control of Salmonella at the production level should be based. The Salmonella cycles is so complex that developing a system for breaking it presents a formidable long-term challenge to the public health community. But the critical importance of the farm in perpetuating the disease process demands near-term improvement of husbandry and environmental practices. Preventive action in the production phase of the cycle is feasible through cooperative efforts. JF - Journal of Environment and Health AU - Franco, DA AU - Williams, CE AD - USDA, Food Saf. and Insp. Serv., Slaughter Oper. Staff, Insp. Oper., Washington, DC 20250, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 34 EP - 38 VL - 53 IS - 5 SN - 0022-0892, 0022-0892 KW - salmonellosis KW - prevention KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - poultry KW - livestock KW - farms KW - meat KW - husbandry KW - Salmonella KW - public health KW - J 02862:Infection KW - A 01017:Human foods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15901792?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environment+and+Health&rft.atitle=Salmonellosis+prevention.+The+importance+of+husbandry+and+the+farm+environment.&rft.au=Franco%2C+DA%3BWilliams%2C+CE&rft.aulast=Franco&rft.aufirst=DA&rft.date=1991-01-01&rft.volume=53&rft.issue=5&rft.spage=34&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environment+and+Health&rft.issn=00220892&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Salmonella; farms; husbandry; public health; livestock; poultry; meat ER - TY - JOUR T1 - Impact of Bangasternus orientalis (Coleoptera: Curculionidae) on achene production of Centaurea solstitialis (Asterales: Asteraceae) at a low and high elevation site in California. AN - 15901489; 2491964 AB - The efficacy of Bangasternus orientalis Capiomont against its host Centaurea solstitialis L. was determined at two different sites (low and high elevation) in California over a 2-yr period. Host plant and weevil phenology were delayed at the high elevation site. Consequently, the initiation of secondary flower buds (high elevation site) was extended well into November, long after the ovipositing adult weevil population had expired. More than 50% of the egg-bearing test heads did not become infested with mature pupae because of larval mortality. After seed reduction by the weevil, 70% of the seeds remained in the test heads. Our data suggest that B. orientalis appears to be ineffective by itself as a biological control agent of yellow starthistle in California. JF - Environmental Entomology AU - Maddox, D M AU - Joley, D B AU - Mayfield, A AU - Mackey, B E AD - USDA-ARS, Plant Prot. Res., Albany, CA 94710, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 335 EP - 337 VL - 20 IS - 1 SN - 0046-225X, 0046-225X KW - Bangasternus orientalis KW - efficacy KW - Asteraceae KW - Centaurea solstitialis KW - Coleoptera KW - Curculionidae KW - biological control KW - vertical distribution KW - Biotechnology and Bioengineering Abstracts; Ecology Abstracts; Entomology Abstracts KW - USA, California KW - W 30513:Pest control KW - Z 05207:Agricultural & general applied entomology KW - D 04710:Control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15901489?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Impact+of+Bangasternus+orientalis+%28Coleoptera%3A+Curculionidae%29+on+achene+production+of+Centaurea+solstitialis+%28Asterales%3A+Asteraceae%29+at+a+low+and+high+elevation+site+in+California.&rft.au=Maddox%2C+D+M%3BJoley%2C+D+B%3BMayfield%2C+A%3BMackey%2C+B+E&rft.aulast=Maddox&rft.aufirst=D&rft.date=1991-01-01&rft.volume=20&rft.issue=1&rft.spage=335&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Centaurea solstitialis; Coleoptera; Curculionidae; Asteraceae; USA, California; biological control; vertical distribution ER - TY - JOUR T1 - In vivo production of a nuclear polyhedrosis virus utilizing tobacco budworm and a multicellular larval rearing container. AN - 15901409; 2478525 AB - The effects of viral inoculum and incubation period on virus yield in a method of in vivo production of the multicapsid nuclear polyhedrosis virus of Heliothis armigera (Hubner) were examined utilizing Heliothis virescens larvae reared in multicellular containers. Trays of diet were surface contaminated with virus levels ranging from 54 to 2708 polyhedral inclusion bodies (PIB) per mm super(2) of diet at 7 days after egg infestation. The virus was harvested either at 6 or 7 days after treatment. Within the ranges of this study, the greatest quantity virus was obtained when the diet was inoculated with the 54 PIB level, and the virus was harvested at 7 days. This combination resulted in an average production of 2919 x 10 super(9) PIB per tray, with 5.7 x 10 super(9) PIB per larvae and 523 collectable larvae per tray. JF - Journal of Entomological Science AU - Bell, M R AD - South. Field Crop Insect Manage. Lab., USDA-ARS, Stoneville, MS 38776, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 69 EP - 75 VL - 26 IS - 1 SN - 0749-8004, 0749-8004 KW - nuclear polyhedrosis virus KW - polyhedra KW - formation KW - inoculum KW - production KW - larvae KW - Heliothis virescens KW - Lepidoptera KW - Noctuidae KW - biological control KW - inclusion bodies KW - mass rearing KW - Entomology Abstracts; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Virology & AIDS Abstracts KW - A 01014:Others KW - V 22160:Viral infections of invertebrates KW - Z 05182:Pathology KW - W 30513:Pest control KW - A 01114:Viruses KW - W 30310:Microorganisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15901409?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Entomological+Science&rft.atitle=In+vivo+production+of+a+nuclear+polyhedrosis+virus+utilizing+tobacco+budworm+and+a+multicellular+larval+rearing+container.&rft.au=Bell%2C+M+R&rft.aulast=Bell&rft.aufirst=M&rft.date=1991-01-01&rft.volume=26&rft.issue=1&rft.spage=69&rft.isbn=&rft.btitle=&rft.title=Journal+of+Entomological+Science&rft.issn=07498004&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Heliothis virescens; Noctuidae; Lepidoptera; inclusion bodies; mass rearing; biological control ER - TY - JOUR T1 - Cylindrical inclusion bodies of wheat streak mosaic virus and three other potyviruses only self-assemble in mixed infections. AN - 15899606; 2495977 AB - Potyviruses produce cylindrical inclusions (CIs) in the cytoplasm of infected cells. Immunogold labelling and electron microscopy of embedded and sectioned wheat and maize cells doubly infected by different potyviruses revealed no mixing of inclusion proteins in CIs. The viruses were wheat streak mosaic virus (WSMV), agropyron mosaic virus and hordeum mosaic virus, in wheat, and WSMV and maize dwarf mosaic virus in maize. The three viruses in wheat were indistinguishable morphologically and in ultrastructural features but can be separated by serology and host range. The absence of phenotypic mixing in CIs showed that in the presence of CI proteins of other potyviruses, assembly was either highly virus-specific, or that no opportunity existed for CI proteins to assemble into hybrid CIs in mixed infections. JF - Journal of General Virology AU - Langenberg, W G AD - ARS, USDA, Dep. Plant Pathol., Univ. Nebraska, Lincoln, NE 68583, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 493 EP - 497 VL - 72 IS - 3 SN - 0022-1317, 0022-1317 KW - wheat streak mosaic virus KW - mixed infection KW - self-assembly KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Virology & AIDS Abstracts KW - agropyron mosaic virus KW - hordeum mosaic virus KW - inclusion bodies KW - Triticum aestivum KW - cylindrical bodies KW - Zea mays KW - maize dwarf mosaic virus KW - A 01026:Gramineous crops KW - V 22045:Assembly, maturation & release KW - V 22183:Symptomatology, pathology & etiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15899606?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+General+Virology&rft.atitle=Cylindrical+inclusion+bodies+of+wheat+streak+mosaic+virus+and+three+other+potyviruses+only+self-assemble+in+mixed+infections.&rft.au=Langenberg%2C+W+G&rft.aulast=Langenberg&rft.aufirst=W&rft.date=1991-01-01&rft.volume=72&rft.issue=3&rft.spage=493&rft.isbn=&rft.btitle=&rft.title=Journal+of+General+Virology&rft.issn=00221317&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - agropyron mosaic virus; hordeum mosaic virus; maize dwarf mosaic virus; Zea mays; Triticum aestivum; inclusion bodies; cylindrical bodies ER - TY - JOUR T1 - Growth, death, and oxygen uptake kinetics of Pichia stipitis on xylose. AN - 15899098; 2494940 AB - Pichia stipitis NRRL Y-7124 has potential application in the fermentation of xylose-rich waste streams produced by wood hydrolysis. Kinetic models of cell growth, death, and oxygen uptake were investigated in batch and oxygen-limited continuous cultures fed a rich synthetic medium. Variables included rates of dilution (D) and oxygen transfer (K sub(I)a)and concentrations of xylose (X), ethanol (E), and dissolved oxygen (C sub(OX)). Sustained cell growth required the presence of oxygen. Given excess xylose, specific growth rate ( mu ) was a Monod function of C sub(OX). Specific oxygen uptake rate was proportional to mu by a yield coefficient relating biomass production to oxygen consumption; but oxygen uptake for maintenance was negligible. Thus steady-state C sub(OX) depended only on D, while steady-state biomass concentration was controlled by both D and K sub(I)a. JF - Biotechnology and Bioengineering AU - Slininger, P J AU - Branstrator, LE AU - Bothast, R J AU - Okos, M R AU - Ladisch, M R AD - Ferment. Biochem. Res. Unit, North. Reg. Res. Cent., USDA, Agric. Res. Serv., 1815 N. University St., Peoria, IL 61604, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 973 EP - 980 VL - 37 IS - 10 SN - 0006-3592, 0006-3592 KW - Pichia stipitis KW - growth KW - mortality KW - uptake KW - kinetics KW - xylose KW - oxygen KW - dissolved oxygen KW - fermentation KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - K 03097:Food microbiology & fermentation KW - A 01015:Fermentation & related processes KW - W 30540:Energy, minerals and chemical feedstocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15899098?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biotechnology+and+Bioengineering&rft.atitle=Growth%2C+death%2C+and+oxygen+uptake+kinetics+of+Pichia+stipitis+on+xylose.&rft.au=Slininger%2C+P+J%3BBranstrator%2C+LE%3BBothast%2C+R+J%3BOkos%2C+M+R%3BLadisch%2C+M+R&rft.aulast=Slininger&rft.aufirst=P&rft.date=1991-01-01&rft.volume=37&rft.issue=10&rft.spage=973&rft.isbn=&rft.btitle=&rft.title=Biotechnology+and+Bioengineering&rft.issn=00063592&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - fermentation; dissolved oxygen ER - TY - JOUR T1 - In vitro infectivity of a clonal isolate of Syngrapha falcifera (celery looper) multiple nuclear polyhedrosis virus. AN - 15898149; 2478623 JF - Journal of Invertebrate Pathology AU - McIntosh, AH AD - USDA, ARS, Biol. Control Insects Res. Lab., Columbia, MO 65205, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 441 EP - 442 VL - 57 IS - 3 SN - 0022-2011, 0022-2011 KW - Syngrapha falcifera KW - isolates KW - infectivity KW - in vitro KW - cell lines KW - polyhedra KW - inclusion bodies KW - Lepidoptera KW - Noctuidae KW - nuclear polyhedrosis virus KW - Entomology Abstracts; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Virology & AIDS Abstracts KW - A 01014:Others KW - V 22160:Viral infections of invertebrates KW - Z 05182:Pathology KW - W 30513:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15898149?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Invertebrate+Pathology&rft.atitle=In+vitro+infectivity+of+a+clonal+isolate+of+Syngrapha+falcifera+%28celery+looper%29+multiple+nuclear+polyhedrosis+virus.&rft.au=McIntosh%2C+AH&rft.aulast=McIntosh&rft.aufirst=AH&rft.date=1991-01-01&rft.volume=57&rft.issue=3&rft.spage=441&rft.isbn=&rft.btitle=&rft.title=Journal+of+Invertebrate+Pathology&rft.issn=00222011&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - nuclear polyhedrosis virus; Lepidoptera; Noctuidae ER - TY - JOUR T1 - Replication of Heliothis zea nuclear polyhedrosis virus in cloned cell lines. AN - 15897986; 2478171 AB - Clones from two Heliothis zea (Lepidoptera: Noctuidae) ovarian cell lines, BCIRL-Hz-AM1 (AM1) and BCIRL-Hz-AM3 (AM3), were generated and their ability to produce H. zea nuclear polyhedrosis virus (HzSNPV) was compared. Titers of extracellular virus (ECV) ranged from 5.5 (AM3-F9) to 44.9 x 10 super(5) PFU/ml (AM1-A4), with the parental cell lines AM3 and AM1 producing 14.8 and 26.4 x 10 super(5) PFU/ml, respectively. Concentrations of polyhedral inclusion bodies (PIB) produced by the cloned lines ranged from 0.7 (AM3-F9) to 59.6 x 10 super(6) PIB/ml (AM1-B3), while the parental cell lines generated 6.5 (AM3) and 12.9 x 10 super(6) PIB/ml (AM1). The percentage of cells from the cloned lines that produced PIB ranged from 39 to 86.4% for AM3-F9 and AM1-A7, respectively, with the parental lines exhibiting 49.1% (AM3) and 75.3% (AM1) cells with PIB. JF - Journal of Invertebrate Pathology AU - Lenz, C J AU - McIntosh, AH AU - Mazzacano, C AU - Monderloh, U AD - Biol. Control Insects Res. Lab., USDA, ARS, Res. Park, P.O. Box 7629, Columbia, MO 65205, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 227 EP - 233 VL - 57 IS - 2 SN - 0022-2011, 0022-2011 KW - Heliothis zea KW - cell lines KW - clones KW - replication KW - Lepidoptera KW - Noctuidae KW - inclusion bodies KW - nuclear polyhedrosis virus KW - Entomology Abstracts; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Virology & AIDS Abstracts KW - A 01014:Others KW - V 22160:Viral infections of invertebrates KW - Z 05182:Pathology KW - W 30513:Pest control KW - A 01114:Viruses KW - W 30310:Microorganisms KW - V 22041:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15897986?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Invertebrate+Pathology&rft.atitle=Replication+of+Heliothis+zea+nuclear+polyhedrosis+virus+in+cloned+cell+lines.&rft.au=Lenz%2C+C+J%3BMcIntosh%2C+AH%3BMazzacano%2C+C%3BMonderloh%2C+U&rft.aulast=Lenz&rft.aufirst=C&rft.date=1991-01-01&rft.volume=57&rft.issue=2&rft.spage=227&rft.isbn=&rft.btitle=&rft.title=Journal+of+Invertebrate+Pathology&rft.issn=00222011&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - nuclear polyhedrosis virus; Noctuidae; Lepidoptera; inclusion bodies ER - TY - JOUR T1 - Differential allelochemical detoxification mechanism in tissue cultures of Antennaria microphylla and Euphorbia esula . AN - 15897205; 2472947 AB - Callus and suspension cultures of Antennaria microphylla (small everlasting) and the noxious weed Euphorbia esula (leafy spurge) can glucosylate benzene-1,4-diol (hydroquinone) to the corresponding monoglucoside, arbutin. HPLC analysis of extracts from callus tissue corroborates the presence of hydroquinone in the cells of small everlasting. Constitutive levels of a UDPG-dependent glucosyltransferase were detected in cell-free extracts of this tissue. Although this detoxification enzyme was induced in leafy spurge suspension culture cells grown in the presence of hydroquinone, the activity was six-fold lower than that measured in small everlasting. Differential ability to detoxify hydroquinone provides a basis for the observed allelopathic interaction between small everlasting and leafy spurge. JF - Journal of Chemical Ecology AU - Hogan, ME AU - Manners, G D AD - USDA, ARS, West. Reg. Res. Cent., 800 Buchanan St., Albany, CA 94710, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 167 EP - 174 VL - 17 IS - 1 SN - 0098-0331, 0098-0331 KW - allelochemicals KW - Antennaria microphylla KW - Euphorbia esula KW - callus culture KW - detoxification KW - hydroquinones KW - suspension culture KW - tissue culture KW - weed control KW - Biotechnology and Bioengineering Abstracts KW - W 30513:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15897205?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Differential+allelochemical+detoxification+mechanism+in+tissue+cultures+of+Antennaria+microphylla+and+Euphorbia+esula+.&rft.au=Hogan%2C+ME%3BManners%2C+G+D&rft.aulast=Hogan&rft.aufirst=ME&rft.date=1991-01-01&rft.volume=17&rft.issue=1&rft.spage=167&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Effect of salt on fermentation of alfalfa. 1. Treatment with potassium chloride. AN - 15896195; 2495267 AB - Potassium chloride was added to alfalfa before ensiling in experimental silos to determine the effects of potassium addition on fermentation. Well-mixed, wilted (50% DM), third-cutting alfalfa was divided, and KCl was added at a rate of 38.1 g KCl/kg wet forage. Forage was packed into experimental plastic cylinders (610 x 102 mm) and allowed to ferment for 1, 4, 7, 28, and 60 d when DM, protein, ammonia, and 2-amino N, pH, lactic and acetic acids, soluble sugar and starch, and total anaerobes were measured. Addition of KCl to alfalfa at the time of ensiling inhibited microbial activity and slowed acid production and the rate of pH decline of the resulting silage. Even though rate of pH decline was faster (.023 vs. .015 units/d) for control than for treated forage, proteolysis, estimated by changes in protein N, ammonia N, and 2-amino N, was not inhibited. Faster rates of pH decline caused by increased microbial activity may not effectively inhibit proteolysis. JF - Journal of Dairy Science AU - Shockey, W L AU - Barta, AL AD - USDA, ARS, U.S. Dairy Forage Res. Cent., Ohio Cluster, Dep. Dairy Sci., OH, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 155 EP - 159 VL - 74 IS - 1 SN - 0022-0302, 0022-0302 KW - Medicago sativa KW - inhibition KW - growth KW - pH KW - potassium chloride KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - anaerobic bacteria KW - fermentation KW - silage KW - A 01018:Animal foods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15896195?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Dairy+Science&rft.atitle=Effect+of+salt+on+fermentation+of+alfalfa.+1.+Treatment+with+potassium+chloride.&rft.au=Shockey%2C+W+L%3BBarta%2C+AL&rft.aulast=Shockey&rft.aufirst=W&rft.date=1991-01-01&rft.volume=74&rft.issue=1&rft.spage=155&rft.isbn=&rft.btitle=&rft.title=Journal+of+Dairy+Science&rft.issn=00220302&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - silage; fermentation; anaerobic bacteria ER - TY - JOUR T1 - Efficacy of ground application of the gypsy moth (Lepidoptera: Lymantriidae) nucleopolyhedrosis virus product, Gypchek. AN - 15896156; 2478636 AB - Low and moderate density gypsy moth (Lymantria dispar L.) populations in eastern Maryland were treated with the nucleopolyhedrosis virus product, Gypchek, using ground hydraulic equipment. A tank mix containing Orzan LS-50 (12% by vol) as a sunlight protectant, and Rhoplex B60A (2% by vol) as a sticker, was applied to six woodlots at the rate of 378 liters and 2.5 x 10 super(12) polyhedral inclusion bodies per ha. This rate reduced numbers of egg masses by 81% compared with numbers in six control woodlots. Larval mortality was significantly higher in treated than in control woodlots, but defoliation differences between sprayed and control woodlots were not significant. Foliage collected 14 d after spray retained sufficient activity to kill up to 38% of gypsy moth larvae in laboratory bioassays. JF - Journal of Economic Entomology AU - Podgwaite, J D AU - Reardon, R C AU - Kolodny-Hirsch, D M AU - Walton, G S AD - Cent. Biol. Control, Northeast. For. Insects and Dis., For. Serv., USDA, 51 Mill Pond Rd., Hamden, CT 06514, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 440 EP - 444 VL - 84 IS - 2 SN - 0022-0493, 0022-0493 KW - Lymantria dispar KW - pathogens KW - formulations KW - sprays KW - Gypchek KW - woodlots KW - Lepidoptera KW - Lymantriidae KW - biological control KW - forest products KW - nuclear polyhedrosis virus KW - Entomology Abstracts; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Virology & AIDS Abstracts KW - USA, Maryland KW - A 01014:Others KW - V 22160:Viral infections of invertebrates KW - W 30513:Pest control KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15896156?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Efficacy+of+ground+application+of+the+gypsy+moth+%28Lepidoptera%3A+Lymantriidae%29+nucleopolyhedrosis+virus+product%2C+Gypchek.&rft.au=Podgwaite%2C+J+D%3BReardon%2C+R+C%3BKolodny-Hirsch%2C+D+M%3BWalton%2C+G+S&rft.aulast=Podgwaite&rft.aufirst=J&rft.date=1991-01-01&rft.volume=84&rft.issue=2&rft.spage=440&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - nuclear polyhedrosis virus; Lymantriidae; Lepidoptera; USA, Maryland; biological control; forest products ER - TY - JOUR T1 - In situ intestinal absorption of 2-chloro-N-isopropylacetanilide (propachlor) and non-biliary excretion of metabolites into the intestinal tract of rats, pigs and chickens. AN - 15894019; 2476396 AB - Propachlor was absorbed from in situ intestinal loops of rats and pigs, with absorption half-times of 7 multiplied by 5 and 16 multiplied by 5 min, respectively. Water-soluble super(14)C-labelled metabolites that accumulated in the intestinal loops accounted for 31%, 53% and 25% of the starting super(14)C for rats, pigs and chickens, respectively. Propachlor(S)cysteine was identified as the major metabolite in the pig intestinal lumen (43% of the water-soluble super(14)C). Intestinal metabolism and intestinal excretion of water-soluble metabolites of propachlor are important physiological processes that occur in a variety of animal species. These processes provide a route by which metabolites of xenobiotics may reach the intestinal lumen in animals which are poor biliary excretors. JF - Xenobiotica AU - Struble, C B AD - Biosci. Res. Lab., ARS, USDA, Fargo, ND 58105, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 85 EP - 95 VL - 21 IS - 1 SN - 0049-8254, 0049-8254 KW - propachlor KW - absorption KW - metabolites KW - excretion KW - rats KW - pigs KW - chickens KW - Toxicology Abstracts KW - herbicides KW - intestine KW - X 24133:Metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15894019?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Xenobiotica&rft.atitle=In+situ+intestinal+absorption+of+2-chloro-N-isopropylacetanilide+%28propachlor%29+and+non-biliary+excretion+of+metabolites+into+the+intestinal+tract+of+rats%2C+pigs+and+chickens.&rft.au=Struble%2C+C+B&rft.aulast=Struble&rft.aufirst=C&rft.date=1991-01-01&rft.volume=21&rft.issue=1&rft.spage=85&rft.isbn=&rft.btitle=&rft.title=Xenobiotica&rft.issn=00498254&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - herbicides; intestine ER - TY - JOUR T1 - Effect of salt on fermentation of alfalfa. 2. Treatment with sodium chloride, Clostridium butyricum , and lactic acid bacteria. AN - 15893156; 2495299 AB - Pure cultures of anaerobic bacteria were grown in KCl- and NaCl-treated media, and NaCl was added to alfalfa (Medicago sativa L.) inoculated with Clostridium butyricum to determine effects of salt on growth of silage bacteria and fermentation of potentially putrefactive alfalfa silage. Pure cultures of Lactobacillus plantarum, Streptococcus faecium , and C. butyricum were grown in media containing 0, 100, 200, 400, 600, or 1200 mM NaCl or KCl. Growth of C. butyricum did not occur with 100 mM or higher NaCl and 200 mM or higher KCl. Growth of the lactic acid bacteria, although slower compared to no added salt, was evident at all added salt concentrations. Salt (NaCl) inhibited growth of Clostridium and, apparently, epiphytic lactic acid bacteria. Sodium chloride alone added to Clostridium -inoculated alfalfa did not result in a well-preserved silage. Inoculation with lactic acid bacteria was more effective than NaCl in contributing to a well-preserved silage. JF - Journal of Dairy Science AU - Shockey, W L AU - Borger, D C AD - USDA, ARS, U.S. Dairy Forage Res. Cent., Ohio Cluster, Dep. Dairy Sci., Wooster, OH 44691, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 160 EP - 166 VL - 74 IS - 1 SN - 0022-0302, 0022-0302 KW - Medicago sativa KW - in vitro KW - starter cultures KW - inoculation KW - growth KW - inhibition KW - effects on KW - sodium chloride KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - Clostridium butyricum KW - lactic acid bacteria KW - fermentation KW - silage KW - A 01018:Animal foods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15893156?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Dairy+Science&rft.atitle=Effect+of+salt+on+fermentation+of+alfalfa.+2.+Treatment+with+sodium+chloride%2C+Clostridium+butyricum+%2C+and+lactic+acid+bacteria.&rft.au=Shockey%2C+W+L%3BBorger%2C+D+C&rft.aulast=Shockey&rft.aufirst=W&rft.date=1991-01-01&rft.volume=74&rft.issue=1&rft.spage=160&rft.isbn=&rft.btitle=&rft.title=Journal+of+Dairy+Science&rft.issn=00220302&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Clostridium butyricum; silage; fermentation; lactic acid bacteria ER - TY - JOUR T1 - Influence of phenolic acids on microbial populations in the rhizosphere of cucumber. AN - 15892765; 2475465 AB - Experiments were conducted to determine whether changes in soil microbial populations that occur in response to additions of certain allelopathic phenolic acids to bulk soil also occur in the rhizosphere. Cucumber seedlings were transplanted into cups containing a nutrient-enriched mixture of Portsmouth B sub(1) soil and sand and were watered five times (one every 48 hr) with aqueous solutions of ferulic, p-coumaric, or vanillic acid (each at 0, 0.25, or 0.50 mu mol/g soil material). Leaf growth was suppressed by up to 42% by phenolic acids, but changes in root growth varied with the compound and concentration in solution. Significant increases (over 600% relative to controls) in populations of fast-growing bacteria in the rhizosphere were detected after two but not after five treatments, and increases (400% relative to controls) in numbers of fungal propagules were detected after five treatments. Such increases suggested that chronic exposure to a phenolic acid might result in high populations of rhizosphere microorganisms that could metabolize the compounds and thus alter observable responses by the plant. JF - Journal of Chemical Ecology AU - Shafer AU - Blum, U AD - USDA, ARS and Dep. Plant Pathol., North Carolina State Univ., Raleigh, NC 27695-7616, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 369 EP - 390 VL - 17 IS - 2 SN - 0098-0331, 0098-0331 KW - Cucumis sativus KW - population levels KW - allelopathy KW - exudates KW - metabolism KW - chronic effects KW - acute effects KW - phenolic acids KW - ferulic acid KW - vanillic acid KW - p-coumaric acid KW - Ecology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology; Microbiology Abstracts B: Bacteriology KW - roots KW - rhizosphere microorganisms KW - K 03095:Soil KW - A 01047:General KW - J 02901:Soil and plants KW - D 04620:Microorganisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15892765?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Influence+of+phenolic+acids+on+microbial+populations+in+the+rhizosphere+of+cucumber.&rft.au=Shafer%3BBlum%2C+U&rft.aulast=Shafer&rft.aufirst=&rft.date=1991-01-01&rft.volume=17&rft.issue=2&rft.spage=369&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - rhizosphere microorganisms; roots ER - TY - JOUR T1 - Reproduction and damage by Russian wheat aphid (Homoptera: Aphididae) as influenced by fungal endophytes and cool-season turfgrasses. AN - 15892634; 2479128 AB - In the Pacific Northwest of the United States, certain cool-season turfgrasses grown for seed are colonized by Russian wheat aphid, Diuraphis noxia (Mordvilko). The objectives of our study were to determine which turfgrass species are colonized and damaged by the aphid, to determine if genetic resistance occurs within genotypes of the same species, and to determine if fungal endophytes enhance aphid resistance in turfgrasses. Compared with cereal species and intermediate wheatgrass (Elytrigia intermedia (Host) Nevski subsp. intermedia ), turfgrass species were not as susceptible to Russian wheat aphid. Festuca spp. were better hosts than other grass species. Perennial ryegrass (Lolium perenne L. "Repell" and "Regal") had resistance 6 wk after infestation. "Repell" and "Regal" were infected with a fungal endophyte, Acremonium lolii Latch, Christenson, & Samuels. "Mustang" was infected with Acremonium coenophialum Morgan-Jones & Gams, and "Wrangler" was infected with an unidentified species of Acremonium . Sheep fescue "Bighorn" and strong creeping fed fescue (F. rubra L. subsp. rubra , "Ruby" were infected with Epichloe typhina (Pers. ex Fr.) Tul. "Repell" and "Regal" showed the greatest resistance to aphid feeding, suggesting that plant resistance may have been enhanced by the presence of fungal endophytes. JF - Journal of Economic Entomology AU - Kindler, S D AU - Breen, J P AU - Springer, T L AD - Wheat and Other Cereal Crops Res. Unit, USDA-ARS, 1301 N. Western St., Stillwater, OK 74075, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 685 EP - 692 VL - 84 IS - 2 SN - 0022-0493, 0022-0493 KW - Diuraphis noxia KW - effects on KW - survival KW - Gramineae KW - Entomology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Aphididae KW - reproduction KW - pest resistance KW - fungi KW - endophytes KW - Acremonium KW - Poaceae KW - Homoptera KW - pest attack KW - K 03089:Fungi: plant KW - Z 05207:Agricultural & general applied entomology KW - A 01026:Gramineous crops UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15892634?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Reproduction+and+damage+by+Russian+wheat+aphid+%28Homoptera%3A+Aphididae%29+as+influenced+by+fungal+endophytes+and+cool-season+turfgrasses.&rft.au=Kindler%2C+S+D%3BBreen%2C+J+P%3BSpringer%2C+T+L&rft.aulast=Kindler&rft.aufirst=S&rft.date=1991-01-01&rft.volume=84&rft.issue=2&rft.spage=685&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Acremonium; Aphididae; Homoptera; Poaceae; pest resistance; endophytes; fungi; pest attack; reproduction ER - TY - JOUR T1 - Natural variability of three geographic isolates of gypsy moth (Lepidoptera: Lymantriidae) nuclear polyhedrosis virus. AN - 15891424; 2478897 AB - Variations in biological activities of three geographic isolates of gypsy moth, Lymantria dispar (L.), nuclear polyhedrosis virus (NPV) were determined in the laboratory. The median LC sub(50) varied from 0.17 plus or minus 0.19 polyhedral inclusion bodies (PIB) per mm super(2) (Abington, Massachusetts isolate) to 17.4 plus or minus 13.5 PIB per mm super(2) (Dalmatia, Yugoslavia), a difference of about 102-fold. Activity of samples within the two North American isolates (Abington, Mass., and Hamden, Conn.) was approximately 15- and 20-fold, respectively; variation of individual samples within the Dalmatia isolate was approximately 17.5-fold at LC sub(50). JF - Journal of Economic Entomology AU - Shapiro, M AU - Robertson, J L AD - Insect Pathol. Lab., USDA ARS, BARC-W, Beltsville, MD 20705, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 71 EP - 75 VL - 84 IS - 1 SN - 0022-0493, 0022-0493 KW - nuclear polyhedrosis virus KW - geographical variations KW - geographical isolates KW - Lepidoptera KW - Lymantria dispar KW - Lymantriidae KW - biological control KW - pathogenicity KW - Entomology Abstracts; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Virology & AIDS Abstracts KW - A 01014:Others KW - V 22160:Viral infections of invertebrates KW - Z 05182:Pathology KW - W 30513:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15891424?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Natural+variability+of+three+geographic+isolates+of+gypsy+moth+%28Lepidoptera%3A+Lymantriidae%29+nuclear+polyhedrosis+virus.&rft.au=Shapiro%2C+M%3BRobertson%2C+J+L&rft.aulast=Shapiro&rft.aufirst=M&rft.date=1991-01-01&rft.volume=84&rft.issue=1&rft.spage=71&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lymantria dispar; Lymantriidae; Lepidoptera; biological control; pathogenicity ER - TY - JOUR T1 - Production, purification, and characterization of beta -(1-4)-endoxylanase of Streptomyces roseiscleroticus . AN - 15889430; 2486010 AB - Twelve species of Streptomyces that formerly belonged to the genus Chainia were screened for the production of xylanase and cellulase. One species, Streptomyces roseiscleroticus (Chainia rosea ) NRRL B-11019, produced up to 16.2 IU of xylanase per ml in 48 h. A xylanase from S. roseiscleroticus was purified and characterized. The enzyme was a debranching beta -(1-4)-endoxylanase showing high activity on xylan but essentially no activity against acid-swollen (Walseth) cellulose. It had a very low apparent molecular weight of 5,500 by native gel filtration, but its denatured molecular weight was 22,600 by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. It has an isoelectric point of 9.5. The pH and temperature optima for hydrolysis of arabinoxylan were 6.5 to 7.0 and 60 multiplied by C respectively, and more than 75% of the optimum enzyme activity was retained at pH 8.0. The xylanase had a K sub(m) of 7.9 mg/ml and an apparent V sub(max) of 305 mu mol/min/mg of protein. JF - Applied and Environmental Microbiology AU - Grabski, A C AU - Jeffries, T W AD - Inst. Microb. and Biochem. Technol., Forest Prod. Lab., Forest Serv., USDA, Madison, WI 53705-2398, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 987 EP - 992 VL - 57 IS - 4 SN - 0099-2240, 0099-2240 KW - Chainia KW - Streptomyces roseiscleroticus KW - biosynthesis KW - endo-1,4- beta -xylanase KW - isoelectric points KW - kinetics KW - molecular weight KW - purification KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - W 30401:Enzymes and cofactors KW - A 01006:Enzymes & cofactors KW - J 02728:Enzymes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15889430?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Production%2C+purification%2C+and+characterization+of+beta+-%281-4%29-endoxylanase+of+Streptomyces+roseiscleroticus+.&rft.au=Grabski%2C+A+C%3BJeffries%2C+T+W&rft.aulast=Grabski&rft.aufirst=A&rft.date=1991-01-01&rft.volume=57&rft.issue=4&rft.spage=987&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - molecular weight; isoelectric points ER - TY - JOUR T1 - Germination and hyphal growth of VAM fungi during and after storage in soil at five matric potentials. AN - 15888242; 2468562 AB - Four vesicular-arbuscular mycorrhizal (VAM) fungi, Gigaspora margarita Becker & Hall, Glomus mosseae, Glomus intraradices , and Acaulospora longula , were studied to characterize the variety of responses of VAM fungi to storage. Spores were stored at 23 degree C for up to 4 months in soil at several matric potentials ( psi m), then removed and exposed for 1 month in soil at field capacity to induce germination. Net germinability, was effectively zero for Gi. margarita . Net germinability of spores of G. intraradices increased with decreasing storage psi m. Net germinability of spores of G. mosseae was inversely proportional to duration of storage and independent of psi m. Net germinability of A. longula increased with duration of storage and was independent of moisture availability during storage. JF - Soil Biology and Biochemistry AU - Douds, DD Jr AU - Schenck, N C AD - USDA ARS East. Reg. Res. Cent., 600 E. Mermaid Lane, Philadelphia, PA 19118, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 177 EP - 183 VL - 23 IS - 2 SN - 0038-0717, 0038-0717 KW - Gigaspora margarita KW - effects on KW - Acaulospora longula KW - Ecology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Glomus mosseae KW - water potential KW - Glomus intraradices KW - germination KW - storage conditions KW - vesicular-arbuscular mycorrhizas KW - hyphae KW - soil KW - A 01047:General KW - D 04623:Fungi KW - K 03096:Mycorrhiza UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15888242?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Biology+and+Biochemistry&rft.atitle=Germination+and+hyphal+growth+of+VAM+fungi+during+and+after+storage+in+soil+at+five+matric+potentials.&rft.au=Douds%2C+DD+Jr%3BSchenck%2C+N+C&rft.aulast=Douds&rft.aufirst=DD&rft.date=1991-01-01&rft.volume=23&rft.issue=2&rft.spage=177&rft.isbn=&rft.btitle=&rft.title=Soil+Biology+and+Biochemistry&rft.issn=00380717&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Glomus mosseae; Glomus intraradices; storage conditions; water potential; hyphae; germination; vesicular-arbuscular mycorrhizas; soil ER - TY - JOUR T1 - Thermal inactivation kinetics of food-borne yeasts. AN - 15887977; 2483844 AB - The thermal inactivation kinetics of three food-borne yeasts from heat-treated products-two Sacc. cerevisiae and one Zygosacc. rouxii -have been determined. Thermal treatment and evaluation of results were carried out according to the dynamic heat destruction method. Results for 0.5% (w/w) glucose as heating medium expressed in D sub(55) values were 1.05, 2.67 and 0.16 min, respectively. The respective z values were 4.00, 6.23 and 5.55 degree C. The apparent activation energy for heat destruction calculated from the Arrhenius plot for the three yeasts were 5.05 super(*)10 super(5), 3.61 super(*)10 super(5) and 3.60 super(*)10 super(5) Jmol super(-1). Applying Eyring's theory of absolute reaction rates for thermal destruction, values for enthalpy and entropy of activation could be calculated. JF - Journal of Food Science AU - Toeroek, T AU - King, AD Jr AD - USDA ARS, West. Reg. Res. Cent., 800 Buchanan St., Albany, CA 94710, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 6 EP - 9 VL - 56 IS - 1 SN - 0022-1147, 0022-1147 KW - Saccharomyces cerevisiae KW - isolates KW - preservation KW - kinetics KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - heat resistance KW - heat inactivation KW - Zygosaccharomyces rouxii KW - food KW - K 03097:Food microbiology & fermentation KW - A 01019:Sterilization, preservation & packaging UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15887977?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Food+Science&rft.atitle=Thermal+inactivation+kinetics+of+food-borne+yeasts.&rft.au=Toeroek%2C+T%3BKing%2C+AD+Jr&rft.aulast=Toeroek&rft.aufirst=T&rft.date=1991-01-01&rft.volume=56&rft.issue=1&rft.spage=6&rft.isbn=&rft.btitle=&rft.title=Journal+of+Food+Science&rft.issn=00221147&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Zygosaccharomyces rouxii; food; heat inactivation; heat resistance ER - TY - JOUR T1 - Comparative study on the identification of food-borne yeasts. AN - 15886696; 2470297 AB - Morphologically distinct yeast colonies from partially and fully processed fruits and vegetables were isolated over a 3-year period. Identification of 239 strains was achieved by using standard methods, commercial identification kits (API 20C and API YEAST-IDENT), and a simplified system for food-borne yeasts. The identified strains of fruit origin represented 36 species belonging to 19 genera. Among strains of vegetable origin, 34 species representing 17 genera were identified. The simplified identification system and the conventional method provided the same results in 80% of the cases. The commercial identification kits were easy to use but were not appropriate for food-borne yeast species. Computer-assisted identification was helpful. JF - Applied and Environmental Microbiology AU - Toeroek, T AU - King, AD Jr AD - West. Reg. Res. Cent., USDA, Albany, CA 94710, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1207 EP - 1212 VL - 57 IS - 4 SN - 0099-2240, 0099-2240 KW - yeasts KW - identification KW - isolation KW - biochemical characteristics KW - API 20C test KW - API YEAST-IDENT test KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - API test KW - food contamination KW - fruits KW - vegetables KW - K 03069:Fungi KW - A 01017:Human foods KW - K 03002:Fungi KW - A 01117:Fungi KW - K 03098:Spoilage & biodegradation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15886696?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Comparative+study+on+the+identification+of+food-borne+yeasts.&rft.au=Toeroek%2C+T%3BKing%2C+AD+Jr&rft.aulast=Toeroek&rft.aufirst=T&rft.date=1991-01-01&rft.volume=57&rft.issue=4&rft.spage=1207&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - food contamination; API test; fruits; vegetables ER - TY - JOUR T1 - Movement of corn rootworm beetles, Diabrotica spp. (Coleoptera: Chrysomelidae), at cornfield boundaries in relation to sex, reproductive status, and crop phenology. AN - 15886579; 2468077 AB - Canopy and bidirectional Malaise traps were used to estimate the flight activity of northern corn rootworms, Diabrotica barberi Smith & Lawrence, and western corn rootworms, D. virgifera virgifera LeConte, above the plant canopy and at the lateral boundaries of cornfields. Capture of beetles in both types of traps was greatest during pre- and post-flowering intervals, particularly for northern corn rootworms, indicating increased flight activity in response to changes in habitat quality. Based on comparison of ratios of northern/western corn rootworms in the field with those ratios in traps, northern corn rootworm beetles were generally more active at field boundaries than western corn rootworm. There were marked differences in flight activity between males and females and between reproductively immature and mature females of both species. JF - Environmental Entomology AU - Naranjo, SE AD - Western Cotton Res. Lab., USDA-ARS, 4135 E. Broadway Rd., Phoenix, AZ 85040, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 230 EP - 240 VL - 20 IS - 1 SN - 0046-225X, 0046-225X KW - Diabrotica KW - crop fields KW - Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - Coleoptera KW - dispersal KW - trapping KW - flight activity KW - Chrysomelidae KW - Z 05204:Dispersal & migration KW - D 04659:Insects KW - Y 25503:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15886579?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Movement+of+corn+rootworm+beetles%2C+Diabrotica+spp.+%28Coleoptera%3A+Chrysomelidae%29%2C+at+cornfield+boundaries+in+relation+to+sex%2C+reproductive+status%2C+and+crop+phenology.&rft.au=Naranjo%2C+SE&rft.aulast=Naranjo&rft.aufirst=SE&rft.date=1991-01-01&rft.volume=20&rft.issue=1&rft.spage=230&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Chrysomelidae; Coleoptera; trapping; flight activity; dispersal ER - TY - JOUR T1 - Microbial flora and storage quality of partially processed lettuce. AN - 15886157; 2485660 AB - Storage of partially processed lettuce resulted in an increase in microbial population, pH, and change in package atmosphere composition (increasing CO sub(2) and decreasing O sub(2)). Microbial populations varied in size with variations in processing and packaging. Typical initial log sub(10) counts per g were: bacteria 3.4-5.1, yeasts 2.5-3.2; molds were infrequent. Commercial packaging inhibited bacterial growth and retarded browning. Although Gram-negative bacteria were numerically dominant, a large yeast population was also found. Species in the genera Pseudomonas, Erwinia , and Serratia were the most frequently isolated bacteria. Cryptococcus, Pichia, Torulaspora and Trichosporon spp. were the most common yeasts. JF - Journal of Food Science AU - King, AD Jr AU - Magnuson, JA AU - Toeroek, T AU - Goodman, N AD - USDA, ARS West. Reg. Res. Cent., 800 Buchanan St., Albany, CA 94710, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 459 EP - 461 VL - 56 IS - 2 SN - 0022-1147, 0022-1147 KW - Lactuca sativa KW - gram-negative bacteria KW - partial processing KW - Torulaspora KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Microbiology Abstracts A: Industrial & Applied Microbiology KW - vegetables KW - Pichia KW - Pseudomonas KW - Cryptococcus KW - food contamination KW - food processing KW - Serratia KW - Trichosporon KW - yeasts KW - Erwinia KW - A 01017:Human foods KW - K 03098:Spoilage & biodegradation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15886157?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Food+Science&rft.atitle=Microbial+flora+and+storage+quality+of+partially+processed+lettuce.&rft.au=King%2C+AD+Jr%3BMagnuson%2C+JA%3BToeroek%2C+T%3BGoodman%2C+N&rft.aulast=King&rft.aufirst=AD&rft.date=1991-01-01&rft.volume=56&rft.issue=2&rft.spage=459&rft.isbn=&rft.btitle=&rft.title=Journal+of+Food+Science&rft.issn=00221147&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pseudomonas; Erwinia; Serratia; Cryptococcus; Pichia; Trichosporon; food processing; vegetables; food contamination; yeasts ER - TY - JOUR T1 - Cyclonerodiol from a novel source, Trichoderma koningii : Plant growth regulatory activity. AN - 15885722; 2483877 JF - Agricultural and Biological Chemistry AU - Cutler, H G AU - Jacyno, J M AU - Phillips, R S AU - VonTersch, R L AU - Cole, P D AU - Montemurro, N AD - USDA, ARS, Richard B. Russell Cent., P.O. Box 5677, Athens, GA 30613, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 243 EP - 244 VL - 55 IS - 1 SN - 0002-1369, 0002-1369 KW - Trichoderma koningii KW - isolation KW - structure KW - stimulation KW - growth KW - plants KW - cyclonerodiol KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - A 01014:Others KW - K 03060:Fungi UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15885722?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Agricultural+and+Biological+Chemistry&rft.atitle=Cyclonerodiol+from+a+novel+source%2C+Trichoderma+koningii+%3A+Plant+growth+regulatory+activity.&rft.au=Cutler%2C+H+G%3BJacyno%2C+J+M%3BPhillips%2C+R+S%3BVonTersch%2C+R+L%3BCole%2C+P+D%3BMontemurro%2C+N&rft.aulast=Cutler&rft.aufirst=H&rft.date=1991-01-01&rft.volume=55&rft.issue=1&rft.spage=243&rft.isbn=&rft.btitle=&rft.title=Agricultural+and+Biological+Chemistry&rft.issn=00021369&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Effects of adjuvant-augmented germling vaccines in turkey poults challenged with Aspergillus fumigatus . AN - 15884495; 2483852 AB - Turkey poults were vaccinated with combinations of two different germling preparations and three adjuvants (N-acetylmuranyl-L-alanyl-D-isoglutamine, Pasteurella multocida lipopolysaccharide (LPS), and avridine) at 1 and 2 weeks of age, and their immunity was challenged by sublethal exposure to aerosols of Aspergillus fumigatus conidia at 1 month of age. Fewer turkeys in the groups given vaccines prepared from germlings grown on Dorset's and Henley's medium (D&H) had organisms in lung tissue at 2 weeks after challenge exposure as compared with those vaccinated with germling grown on neopeptone dialysate (Neo). The LPS of P. multocida appeared to be the most efficacious of the adjuvants in the D&H vaccine group, as A. fumigatus was isolated from only one of eight turkeys in this group; the number of organisms per gram of lung tissue was low compared with other vaccine groups at 2 weeks after challenge exposure; and poults given D&H vaccine with LPS as adjuvant had less-severe lung lesions than other groups. JF - Avian Diseases AU - Richard, J L AU - Peden, WM AU - Sacks, J M AD - USDA, ARS, North. Reg. Res. Cent., 1815 N. University St., Peoria, IL 61604, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 93 EP - 99 VL - 35 IS - 1 SN - 0005-2086, 0005-2086 KW - turkeys KW - juveniles KW - lipopolysaccharides KW - antigens KW - avridine KW - N-acetylmuramyl-L-alanyl-D-isoglutamine KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Immunology Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - vaccines KW - adjuvants KW - Pasteurella multocida KW - vaccination KW - Aspergillus fumigatus KW - immunity KW - K 03086:Immunology & vaccination KW - F 06807:Active immunization KW - A 01102:Bacteria and fungi KW - K 03088:Fungi: animal UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15884495?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+Diseases&rft.atitle=Effects+of+adjuvant-augmented+germling+vaccines+in+turkey+poults+challenged+with+Aspergillus+fumigatus+.&rft.au=Richard%2C+J+L%3BPeden%2C+WM%3BSacks%2C+J+M&rft.aulast=Richard&rft.aufirst=J&rft.date=1991-01-01&rft.volume=35&rft.issue=1&rft.spage=93&rft.isbn=&rft.btitle=&rft.title=Avian+Diseases&rft.issn=00052086&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aspergillus fumigatus; Pasteurella multocida; vaccination; vaccines; adjuvants; immunity ER - TY - JOUR T1 - Influence of nutrition during conidiation of Colletotrichum truncatum on conidial germination and efficacy in inciting disease in Sesbania exaltata . AN - 15884412; 2484967 AB - Conidia of Colletotrichum truncatum (NRRL 13737) were produced in semidefined, liquid media, with total carbon concentrations of 4 g/L and carbon/nitrogen ratios of 40:1, 15:1, and 5:1. Conidia produced in 5:1 medium were longer and thinner than conidia from 15:1 and 40:1 media, and a higher proportion contained two, rather than one, nuclei per conidium. After either 6 or 12 hr on cellophane membranes, a greater proportion of conidia produced in the 5:1 medium had germinated compared with conidia from 15:1 and 40:1 media. Germination on attached leaves of Sesbania exaltata was greatest with conidia from 5:1 medium when assayed after either 6 or 24 hr. Equality of variance tests implied that the leaf environment had a greater influence on the germination of conidia from 15:1 medium than conidia from 40:1 or 5:1 media. All conidial treatments caused losses in biomass of seedlings of S. exaltata . JF - Phytopathology AU - Schisler, DA AU - Jackson, MA AU - Bothast, R J AD - USDA, ARS, Ferment. Biochem. Res. Unit, Natl. Cent. Agric. Util. Res., Peoria, IL 61604, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 458 EP - 461 VL - 81 IS - 4 SN - 0331-949X, 0331-949X KW - Colletotrichum truncatum KW - biological control KW - phylloplane KW - infectivity KW - pathogenicity KW - mycoherbicides KW - C/N ratios KW - Sesbania exaltata KW - conidia KW - nutrient requirements KW - spore germination KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - A 01028:Others KW - K 03089:Fungi: plant KW - W 30513:Pest control KW - K 03074:Fungi UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15884412?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Phytopathology&rft.atitle=Influence+of+nutrition+during+conidiation+of+Colletotrichum+truncatum+on+conidial+germination+and+efficacy+in+inciting+disease+in+Sesbania+exaltata+.&rft.au=Schisler%2C+DA%3BJackson%2C+MA%3BBothast%2C+R+J&rft.aulast=Schisler&rft.aufirst=DA&rft.date=1991-01-01&rft.volume=81&rft.issue=4&rft.spage=458&rft.isbn=&rft.btitle=&rft.title=Phytopathology&rft.issn=0331949X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Sesbania exaltata; conidia; spore germination; nutrient requirements ER - TY - JOUR T1 - The preparation and efficacy of manually emulsified Newcastle disease oil-emulsion vaccines. AN - 15883926; 2483675 AB - Experimental Newcastle disease oil-emulsion vaccines were prepared by manually shaking small quantities of antigen, surfactant, and mineral oil and compared with oil-emulsion vaccines made by the more conventional mechanical methods. Emulsion stability (prolonged emulsification of aqueous antigen) of the manually prepared vaccines was achieved by four different processes and tested for efficacy in broilers. White rock broilers were vaccinated at 3-5 weeks of age and bled at 1-to-2 week intervals thereafter for 8 weeks. Cumulative 8-week hemagglutination-inhibition (HI) mean titers (reciprocals) ranged from 15 to 250 for manually emulsified vaccines and from 18 to 240 for mechanically emulsified vaccines. Eight-week cumulative mean HI responses induced by manually emulsified vaccines were never significantly lower than their specific mechanically emulsified comparison vaccines and were occasionally significantly higher. JF - Avian Diseases AU - Stone, H D AD - USDA, ARS, Southeast Poult. Res. Lab., 934 College Station Rd., Athens, GA 30605, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 8 EP - 16 VL - 35 IS - 1 SN - 0005-2086, 0005-2086 KW - Newcastle disease virus KW - oils KW - emulsions KW - manual emulsification KW - chickens KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Immunology Abstracts; Virology & AIDS Abstracts KW - vaccines KW - hemagglutination inhibition KW - immunogenicity KW - vaccination KW - A 01100:Viruses KW - F 06807:Active immunization KW - V 22098:Immunization: Vaccines & vaccination: Animal UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15883926?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+Diseases&rft.atitle=The+preparation+and+efficacy+of+manually+emulsified+Newcastle+disease+oil-emulsion+vaccines.&rft.au=Stone%2C+H+D&rft.aulast=Stone&rft.aufirst=H&rft.date=1991-01-01&rft.volume=35&rft.issue=1&rft.spage=8&rft.isbn=&rft.btitle=&rft.title=Avian+Diseases&rft.issn=00052086&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - vaccines; vaccination; immunogenicity; hemagglutination inhibition ER - TY - JOUR T1 - Amantadine resistance among hemagglutinin subtype 5 strains of avian influenza virus. AN - 15883754; 2483594 AB - Several avian influenza virus strains of hemagglutinin subtype 5 were assayed for sensitivity to the antiviral drug amantadine. Most strains exhibited little sensitivity to the drug as measured by plaque reduction. The A/Chicken/Scotland/59 (CS59), however, was highly sensitive, making it easily distinguishable for the other H5 strains. Drug sensitivity of the viruses was also assayed in chicken embryos. The in ovo patterns of amantadine sensitivity differed from those detected in cell culture. The CS59 isolate could not be distinguished from all the other strains on the basis of its response to amantadine in ovo. Although amantadine protected chickens inoculated with CS59 from morbidity and mortality, drug-resistant viruses were readily isolated from the infected birds. As found with other amantadine resistant variants, the structure of the matrix gene was altered in the resistant isolates. JF - Avian Diseases AU - Wainright, PO AU - Perdue, M L AU - Brugh, M AU - Beard, C W AD - USDA, ARS, Southeast Poult. Res. Lab., 934 College Station Rd., Athens, GA 30605, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 31 EP - 39 VL - 35 IS - 1 SN - 0005-2086, 0005-2086 KW - amantadine KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Virology & AIDS Abstracts KW - hemagglutinins KW - drug resistance KW - typing KW - drug sensitivity testing KW - A 01064:Microbial resistance KW - V 22100:Antiviral agents UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15883754?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+Diseases&rft.atitle=Amantadine+resistance+among+hemagglutinin+subtype+5+strains+of+avian+influenza+virus.&rft.au=Wainright%2C+PO%3BPerdue%2C+M+L%3BBrugh%2C+M%3BBeard%2C+C+W&rft.aulast=Wainright&rft.aufirst=PO&rft.date=1991-01-01&rft.volume=35&rft.issue=1&rft.spage=31&rft.isbn=&rft.btitle=&rft.title=Avian+Diseases&rft.issn=00052086&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - drug resistance; drug sensitivity testing; hemagglutinins; typing ER - TY - JOUR T1 - Factors that influence germination and mycoherbicidal activity of Alternaria cassiae . AN - 15880384; 2470352 AB - The influences of pH, surfactants, and nutrients on germination were investigated to develop a basis for improvement of Alternaria cassiae mycoherbicide formulations. In vitro results indicated that a formulation with a pH of approximately 6.5 containing 0.1 to 1% Tween 80, 0.02 M potassium phosphate buffer, and 1% dehydrated potato dextrose broth best promoted germination. Sicklepod plants at the 2 to 3 true-leaf stage were sprayed with test solutions, incubated in the dark at 100% relative humidity (28 C) for 6 h, and placed in a growth chamber maintained at 30 C. Assessment of the plants after 2 d indicated that the ability of the formulation components to induce germination of Alternaria cassiae in vitro corresponded well with their ability to improve infection of sicklepod seedlings. JF - Weed Science AU - Daigle, D J AU - Cotty, P J AD - South. Reg. Res. Cent., USDA, Agric. Res. Serv., New Orleans, LA 70179, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 82 EP - 86 VL - 5 IS - 1 SN - 0043-1745, 0043-1745 KW - Alternaria cassiae KW - pathogens KW - pH KW - polysorbate 80 KW - media (culture) KW - formulations KW - infection KW - spores KW - effects on KW - mycoherbicides KW - Cassia obtusifolia KW - biological control KW - spore germination KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - A 01028:Others KW - K 03089:Fungi: plant KW - W 30513:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15880384?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Weed+Science&rft.atitle=Factors+that+influence+germination+and+mycoherbicidal+activity+of+Alternaria+cassiae+.&rft.au=Daigle%2C+D+J%3BCotty%2C+P+J&rft.aulast=Daigle&rft.aufirst=D&rft.date=1991-01-01&rft.volume=5&rft.issue=1&rft.spage=82&rft.isbn=&rft.btitle=&rft.title=Weed+Science&rft.issn=00431745&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Cassia obtusifolia; biological control; spore germination ER - TY - JOUR T1 - Effects of elevated atmospheric CO sub(2) on water relations of soya bean. AN - 15877306; 2464180 AB - Soya bean (Glycine max (L.) Merr. "Bragg") plants were grown in large containers in open-top field chambers under five atmospheric CO sub(2) concentrations (349-946 mu l l super(-1)) and two water regimes. Rate of soil water depletion for the high CO sub(2) treatments started to decrease under well-watered conditions during anthesis and by early pod formation under water-stressed conditions. During reproductive growth, normal and stressed plants at 349 mu l l super(-1) (ambient level) received irrigation water 29 and 12 times, respectively, compared with 21 and 9 times, respectively, at 946 mu l l super(-1) CO sub(2). At both anthesis and pod fill, plants grown under CO sub(2) enrichment exhibited greater leaf area. Nevertheless, water use per plant either remained constant (stressed plants at anthesis) or else declined (well-watered plants at pod fill; both moisture levels during pod fill) in response to CO sub(2) enrichment. JF - Agriculture, Ecosystems & Environment AU - Prior, SA AU - Rogers, H H AU - Sionit, N AU - Patterson, R P AD - USDA-ARS Natl. Soil Dyn. Lab., Auburn, AL 36831-0792, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 13 EP - 25 VL - 35 IS - 1 SN - 0167-8809, 0167-8809 KW - Glycine max KW - water KW - Pollution Abstracts KW - stress KW - atmosphere KW - growth KW - carbon dioxide KW - P 0000:AIR POLLUTION KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15877306?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Agriculture%2C+Ecosystems+%26+Environment&rft.atitle=Effects+of+elevated+atmospheric+CO+sub%282%29+on+water+relations+of+soya+bean.&rft.au=Prior%2C+SA%3BRogers%2C+H+H%3BSionit%2C+N%3BPatterson%2C+R+P&rft.aulast=Prior&rft.aufirst=SA&rft.date=1991-01-01&rft.volume=35&rft.issue=1&rft.spage=13&rft.isbn=&rft.btitle=&rft.title=Agriculture%2C+Ecosystems+%26+Environment&rft.issn=01678809&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - carbon dioxide; atmosphere; stress; growth ER - TY - JOUR T1 - Mycotoxin formation by different geographic isolates of Fusarium crookwellenese . AN - 15871209; 2461614 AB - Eighteen Fusarium crookwellense isolates from the continents of Australia, Europe, and North America were compared for their ability to produce mycotoxins on corn at 25 degree C after 2 weeks. Extracts from corn fermented with each Fusarium isolate were analyzed by thin-layer chromatography (TLC) and gas chromatography/mass spectroscopy (GS/MS) for mycotoxins. Toxins detected were zearalenone (13 isolates), fusarin C (11 isolates), nivalenol (4 isolates), and diacetoxyscirpenol (2 isolates). Zearalenone and fusarin C were produced by isolates from each continent, while nivalenol was detected in the Fusarium isolates originating from Australia and one isolate from the United States. JF - Mycopathologia AU - Vesonder, R F AU - Golinski, P AU - Plattner, R AU - Zietkiewicz, D L AD - North. Reg. Res. Cent., ARS, USDA, 1815 N. University St., Peoria, IL 61604, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 11 EP - 14 VL - 113 IS - 1 SN - 0301-486X, 0301-486X KW - Fusarium crookwellense KW - production KW - zearalenone KW - fusarin C KW - nivalenol KW - diacetoxyscirpenol KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - gas chromatography KW - geographical isolation KW - mass spectroscopy KW - mycotoxins KW - A 01022:Mycotoxins KW - K 03082:Mycotoxins UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15871209?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mycopathologia&rft.atitle=Mycotoxin+formation+by+different+geographic+isolates+of+Fusarium+crookwellenese+.&rft.au=Vesonder%2C+R+F%3BGolinski%2C+P%3BPlattner%2C+R%3BZietkiewicz%2C+D+L&rft.aulast=Vesonder&rft.aufirst=R&rft.date=1991-01-01&rft.volume=113&rft.issue=1&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=Mycopathologia&rft.issn=0301486X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - geographical isolation; mycotoxins; gas chromatography; mass spectroscopy ER - TY - JOUR T1 - Fermentation and aerobic metabolism of cellodextrins by yeasts. AN - 15870988; 2460736 AB - The fermentation and aerobic metabolism of cellodextrins by 14 yeast species or strains was monitored. When grown aerobically, Candida wickerhamii, C. guilliermondii , and C. molischiana metabolized cellodextrins of degree of polymerization 3 to 6. C. wickerhamii and C. molischiana also fermented these substrates, while C. guilliermondii fermented only cellodextrins of degree of polymerization less than or equal to 3. Debaryomyces polymorphus, Pichia guilliermondii, Clavispora lusitaniae , and one of two strains of Kluyveromyces lactis metabolized glucose, cellobiose, and cellotriose when grown aerobically. These yeasts also fermented these substrates, except for K. lactis , which fermented only glucose and cellobiose. With two exceptions, Rhodotorula minuta and P. guilliermondii , only the yeasts that metabolized cellodextrins of degree of polymerization >3 produced an enzyme(s) that hydrolyzed cellotretose. JF - Applied and Environmental Microbiology AU - Freer, S N AD - North. Reg. Res. Cent., ARS, USDA, Peoria, IL 61604, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 655 EP - 659 VL - 57 IS - 3 SN - 0099-2240, 0099-2240 KW - yeasts KW - cellodextrins KW - aerobic conditions KW - anaerobic conditions KW - metabolic pathways KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - K 03097:Food microbiology & fermentation KW - W 30600:Fermentation and process engineering KW - A 01016:Microbial degradation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15870988?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Fermentation+and+aerobic+metabolism+of+cellodextrins+by+yeasts.&rft.au=Freer%2C+S+N&rft.aulast=Freer&rft.aufirst=S&rft.date=1991-01-01&rft.volume=57&rft.issue=3&rft.spage=655&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - aerobic conditions; anaerobic conditions; metabolic pathways ER - TY - JOUR T1 - Solubilization of gellan gels by chelation of cations. AN - 15856101; 2456246 AB - Chelation solubilization of gellan under mild conditions has been accomplished for the first time by exposure to either 10 mM sodium citrate buffer (pH 6.0) or to 1 mM sodium hexametaphosphate (pH 6.6). The citrate system was preferred for most applications since it is a ubiquitous cellular component, its solutions are autoclavable, and because viable plant tissues, fungi, and bacteria could be recovered from culture. Such recovery is not possible from more commonly used media such as agar. JF - Biotechnology Techniques AU - Doner, L W AU - Becard, G AD - East. Reg. Res. Cent., ARS, USDA, 600 E. Mermaid Lane, Philadelphia, PA 19118, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 25 EP - 28 VL - 5 IS - 1 SN - 0951-208X, 0951-208X KW - gellan KW - solubilization KW - chelation KW - cells KW - mycelia KW - recovery KW - cations KW - media (culture) KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - A 01113:General KW - W 30310:Microorganisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15856101?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biotechnology+Techniques&rft.atitle=Solubilization+of+gellan+gels+by+chelation+of+cations.&rft.au=Doner%2C+L+W%3BBecard%2C+G&rft.aulast=Doner&rft.aufirst=L&rft.date=1991-01-01&rft.volume=5&rft.issue=1&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Biotechnology+Techniques&rft.issn=0951208X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - media (culture); cations ER - TY - JOUR T1 - Computer simulation of Boophilus cattle tick (Acari: Ixodidae) population dynamics. AN - 15853510; 2447739 AB - A comprehensive computer model was developed for simulation of the population dynamics of the cattle ticks, Boophilus microplus (Canestrini) and B. annulatus (Say). The model is deterministic and based on a dynamic life table with weekly time steps. The model simulates the effects of major environmental variables, such as ambient temperature, saturation deficit, precipitation, type of pasture, type of cattle, and cattle density on Boophilus cattle tick population dynamics. General validity of the model is established by comparing simulated and observed yearly densities of standard female ticks/host/day. B. microplus population comparisons were made for a series of years using weekly weather data from two locations in Queensland, Australia. The model also produced acceptable values for initial population growth rate, generation time, and 3-yr population density when historical weather at 7 locations in Australia and 23 locations in the Americas were used. This model provides a framework for the study of Babesia transmission by Boophilus ticks. JF - Journal of Medical Entomology AU - Mount, G A AU - Haile, D G AU - Davey, R B AU - Cooksey, L M AD - Insects Affecting Man and Animals Res. Lab., USDA-ARS, Gainesville, FL 32604, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 223 EP - 240 VL - 28 IS - 2 SN - 0022-2585, 0022-2585 KW - population dynamics KW - models KW - Entomology Abstracts; Ecology Abstracts KW - environmental factors KW - Boophilus annulatus KW - Boophilus microplus KW - Ixodidae KW - Australia KW - Acari KW - New World KW - Z 05202:Parasitism: non-entomophagous KW - D 04660:Arachnids KW - Z 05206:Medical & veterinary entomology KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15853510?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Medical+Entomology&rft.atitle=Computer+simulation+of+Boophilus+cattle+tick+%28Acari%3A+Ixodidae%29+population+dynamics.&rft.au=Mount%2C+G+A%3BHaile%2C+D+G%3BDavey%2C+R+B%3BCooksey%2C+L+M&rft.aulast=Mount&rft.aufirst=G&rft.date=1991-01-01&rft.volume=28&rft.issue=2&rft.spage=223&rft.isbn=&rft.btitle=&rft.title=Journal+of+Medical+Entomology&rft.issn=00222585&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Boophilus microplus; Boophilus annulatus; Acari; Ixodidae; Australia; New World; environmental factors ER - TY - JOUR T1 - Influence of corn planting date on the survival and on some reproductive parameters of Diabrotica virgifera virgifera (Coleoptera: Chrysomelidae). AN - 15852159; 2437510 AB - The effects of three different planting dates of corn and three times of infestation on the survival and subsequent fecundity, egg viability, and longevity of Diabrotica virgifera virgifera LeConte were examined under field conditions in eastern South Dakota. Earlier planting and infesting dates resulted in greater survival of adults. Male-female survivorship was affected by the treatments because only the second infestation date, despite planting date, produced a 1:1 male/female sex ratio. When corn was planted and infested at the same time on the first or third date, the sex ratios were 1:1.5 and 2:1, respectively. Female longevity was significantly affected by the latest corn planting and infestation treatment. The various treatments had little effect on fecundity of individual adults derived from the treatment plots or on the viability of their eggs. JF - Environmental Entomology AU - Fisher, J R AU - Sutter, G R AU - Branson, T F AD - Rangeland Insect Lab., USDA-ARS, Montana State Univ., Bozeman, MT 59717, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 185 EP - 189 VL - 20 IS - 1 SN - 0046-225X, 0046-225X KW - Diabrotica virgifera KW - Ecology Abstracts; Entomology Abstracts KW - USA, South Dakota KW - Coleoptera KW - planting KW - phenology KW - Zea mays KW - survival KW - Chrysomelidae KW - Z 05205:Populations & general ecology KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15852159?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Influence+of+corn+planting+date+on+the+survival+and+on+some+reproductive+parameters+of+Diabrotica+virgifera+virgifera+%28Coleoptera%3A+Chrysomelidae%29.&rft.au=Fisher%2C+J+R%3BSutter%2C+G+R%3BBranson%2C+T+F&rft.aulast=Fisher&rft.aufirst=J&rft.date=1991-01-01&rft.volume=20&rft.issue=1&rft.spage=185&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Zea mays; Chrysomelidae; Coleoptera; USA, South Dakota; survival; planting; phenology ER - TY - JOUR T1 - Role of the fall armyworm (Lepidoptera: Noctuidae) pheromone and other factors in the capture of bumblebees (Hymenoptera: Apidae) by Universal Moth Traps. AN - 15842309; 2436752 AB - The International Pheromone Systems Universal moth trap (Unitrap), when baited with the pheromone of fall armyworm, Spodoptera frugiperda (J. E. Smith), has intermittently been observed to capture large numbers of bumblebees in addition to fall armyworm males. Studies were undertaken in Graham County, N.C., in 1988 and 1989 to determine the contributing factors. Investigation revealed that the yellow color of the traps was attractive to bumblebees, but the color alone did not influence their subsequent movement into the trap and resulting capture. Fall armyworm pheromone alone, particularly when used in combination with a No-Pest resin strip containing dichlorovos insecticide (to kill trapped insects), significantly increased the capture of bumblebees in yellow Unitraps. The green Unitrap alone was totally unattractive to bumblebees. Unitraps captured the greatest number of bumblebees when positioned adjacent to, and at the same height as, pollinating corn tassels. JF - Environmental Entomology AU - Gross, H R AU - Carpenter, JE AD - Insect Biol. and Popul. Manage. Res. Lab., USDA-ARS, Tifton, GA 31793, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 377 EP - 381 VL - 20 IS - 1 SN - 0046-225X, 0046-225X KW - Spodoptera frugiperda KW - Chemoreception Abstracts; Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - USA, North Carolina KW - Lepidoptera KW - pheromone traps KW - Noctuidae KW - Hymenoptera KW - Apidae KW - nontarget organisms KW - attractancy KW - Z 05207:Agricultural & general applied entomology KW - D 04710:Control KW - R 18053:Pest control KW - Y 25883:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15842309?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Role+of+the+fall+armyworm+%28Lepidoptera%3A+Noctuidae%29+pheromone+and+other+factors+in+the+capture+of+bumblebees+%28Hymenoptera%3A+Apidae%29+by+Universal+Moth+Traps.&rft.au=Gross%2C+H+R%3BCarpenter%2C+JE&rft.aulast=Gross&rft.aufirst=H&rft.date=1991-01-01&rft.volume=20&rft.issue=1&rft.spage=377&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Noctuidae; Lepidoptera; Hymenoptera; Apidae; USA, North Carolina; pheromone traps; attractancy; nontarget organisms ER - TY - JOUR T1 - Effect of rust on yield and digestibility of pearl millet forage. AN - 15835209; 2435859 AB - The effects of infection by Puccinia substriata var. indica on yield and digestibility of pearl millet forage was examined in 1988 and 1989. Dwarf hybrids Tifleaf 1 (susceptible) and Tifleaf 2 (resistant), and tall hybrids Gahi 3 (susceptible) and Tift 85DA x 186 (experimental cultivar Gahi 4, resistant) were inoculated or treated with fungicide after the first harvest to establish different levels of disease. For both dwarf and tall hybrids, there were no consistent differences in yield or digestibility between the disease-free plots of susceptible and resistant cultivars. Green yield, dry-matter yield, and forage quality as measured by in vitro digestibility were negative correlated with final rust severity and area under the disease progress curve of dwarf and tall hybrids. Dry-matter concentration was unaffected by disease. JF - Phytopathology AU - Wilson, J P AU - Gates, R N AU - Hanna, W W AD - USDA-ARS Forage and Turf Unit, Univ. Georgia Coastal Plain Exp. Stn., Tifton, GA 31793-0748, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 233 EP - 236 VL - 81 IS - 2 SN - 0331-949X, 0331-949X KW - Puccinia substriata KW - f.sp.indica KW - effects on KW - yield KW - digestibility KW - in vitro KW - forage KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Pennisetum glaucum KW - rust KW - K 03089:Fungi: plant KW - A 01026:Gramineous crops UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15835209?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Phytopathology&rft.atitle=Effect+of+rust+on+yield+and+digestibility+of+pearl+millet+forage.&rft.au=Wilson%2C+J+P%3BGates%2C+R+N%3BHanna%2C+W+W&rft.aulast=Wilson&rft.aufirst=J&rft.date=1991-01-01&rft.volume=81&rft.issue=2&rft.spage=233&rft.isbn=&rft.btitle=&rft.title=Phytopathology&rft.issn=0331949X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pennisetum glaucum; rust ER - TY - JOUR T1 - Occurrence and distribution patterns of mediterranean fruit fly (Diptera: Tephritidae) in desert areas in Chile and Peru. AN - 15834512; 2437539 AB - The occurrence and distribution of the Mediterranean fruit fly, Ceratitis capitata (Wiedemann), in desert areas near the Peru-Chilean border were monitored with protein-and trimedlure-baited traps. The results showed a distinct pattern of increase and decline related to C. capitata population trends in Tacna Valley, Peru. C. capitata was most abundant in the Aeropuerto frontier location and the inland Gallinazo location. All frontier locations showed similar seasonal population trends and yearly variation in total catches between trap sites related to long-range fly movement. The synchronous population dispersal pattern of males and females suggests it is an important survival behavior mechanism for C. capitata populations in the arid areas of Chile and Peru. JF - Environmental Entomology AU - Harris, E J AU - Olalquiaga, G AD - Trop. Fruit and Veg. Res. Lab., USDA-ARS, Honolulu, HI 96804, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 174 EP - 178 VL - 20 IS - 1 SN - 0046-225X, 0046-225X KW - Ceratitis capitata KW - Ecology Abstracts; Entomology Abstracts KW - monitoring KW - Chile KW - zoogeography KW - Tephritidae KW - Peru KW - Diptera KW - population dynamics KW - Z 05230:Neotropical region KW - Z 05205:Populations & general ecology KW - D 04659:Insects KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15834512?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Occurrence+and+distribution+patterns+of+mediterranean+fruit+fly+%28Diptera%3A+Tephritidae%29+in+desert+areas+in+Chile+and+Peru.&rft.au=Harris%2C+E+J%3BOlalquiaga%2C+G&rft.aulast=Harris&rft.aufirst=E&rft.date=1991-01-01&rft.volume=20&rft.issue=1&rft.spage=174&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Tephritidae; Diptera; Chile; Peru; zoogeography; population dynamics; monitoring ER - TY - JOUR T1 - An inexpensive humidifying and cooling system for inhalation chambers. AN - 15831156; 2433756 AB - A relative inexpensive method for humidifying and cooling the intake air supply of an animal inhalation chamber is described. Specifically, incorporation of a humidifier into the air intake supply and circulation of cold water around the aerosol intake line is required. Descriptive statistics of 3 sets of relative humidity and temperature data from combustion trials of a military smoke product showed that: (1) mean within-chamber relative humidities were increased approximately 2.5 times over ambient conditions, (2) mean within-chamber temperatures were reduced approximately 10 degree C, and (3) mean within-chamber relative humidities and temperatures were maintained at 44.4 and 42.5% and at 21.2 and 21.7 degree C during a series of 1-h combustion tests of the smoke product at 500 and 250 l/min air flow rates, respectively. JF - Inhalation Toxicology AU - Sterner, R T AU - Johns, B E AU - Crane, KA AU - Shumake, SA AU - Gaddis, SE AD - USDA/APHIS.S&T, Denver Wildl. Res. Cent., Build. 16, Fed. Cent., Denver, CO 80225-0266, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 139 EP - 144 VL - 3 IS - 1 SN - 0895-8378, 0895-8378 KW - inhalation KW - chambers KW - Toxicology Abstracts KW - toxicity testing KW - smoke KW - X 24221:Toxicity testing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15831156?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Inhalation+Toxicology&rft.atitle=An+inexpensive+humidifying+and+cooling+system+for+inhalation+chambers.&rft.au=Sterner%2C+R+T%3BJohns%2C+B+E%3BCrane%2C+KA%3BShumake%2C+SA%3BGaddis%2C+SE&rft.aulast=Sterner&rft.aufirst=R&rft.date=1991-01-01&rft.volume=3&rft.issue=1&rft.spage=139&rft.isbn=&rft.btitle=&rft.title=Inhalation+Toxicology&rft.issn=08958378&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - toxicity testing; smoke ER - TY - JOUR T1 - Identification of dsRNAs associated with soybean dwarf virus-infected soybean. AN - 15830072; 2436005 AB - Double-stranded (ds) RNA was isolated from leaves of soybean cultivar Wayne infected with the dwarfing (D) or yellowing (Y) strain of soybean dwarf virus (SDV). Each strain produced two virus-specific dsRNAs. SDV-D dsRNAs were estimated to have molecular weights of 3.4 and 1.9 x 10 super(6) Da. The corresponding SDV-Y species were larger, having estimated molecular weights of 3.6 and 2.2 x 10 super(6) Da. Northern blot hybridization analyses showed the strains are related and that the two dsRNAs correspond to viral genomic-length and 3' subgenomic-length species. The detection of SDV dsRNA by polyacrylamide gel electrophoresis (dsRNA profiles) was improved by combining S sub(1) nuclease with DNase in a one-step treatment of nucleic acids isolated by CF-11 column chromatography to remove contaminating single-stranded RNA. The size-specificity of SDV-D and SDV-Y dsRNAs was shown to be a useful phenotypic marker for in vitro strain differentiation. JF - Phytopathology AU - Smith, O P AU - Hunst, P L AU - Hewings, AD AU - Stone, AL AU - Tolin, SA AU - Damsteegt, V D AD - USDA-ARS, Foreign Dis.-Weed Sci. Res., Fort Detrick, Build. 1301, Frederick, MD 21702, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 131 EP - 134 VL - 81 IS - 2 SN - 0331-949X, 0331-949X KW - soybean dwarf virus KW - double-stranded KW - infected KW - leaves KW - isolation KW - biotyping KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Virology & AIDS Abstracts KW - RNA KW - hybridization analysis KW - Glycine max KW - A 01025:Leguminous crops KW - V 22183:Symptomatology, pathology & etiology KW - V 22031:Viral nucleic acids UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15830072?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Phytopathology&rft.atitle=Identification+of+dsRNAs+associated+with+soybean+dwarf+virus-infected+soybean.&rft.au=Smith%2C+O+P%3BHunst%2C+P+L%3BHewings%2C+AD%3BStone%2C+AL%3BTolin%2C+SA%3BDamsteegt%2C+V+D&rft.aulast=Smith&rft.aufirst=O&rft.date=1991-01-01&rft.volume=81&rft.issue=2&rft.spage=131&rft.isbn=&rft.btitle=&rft.title=Phytopathology&rft.issn=0331949X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Glycine max; RNA; hybridization analysis ER - TY - CONF T1 - Short-rotation energy plantations in north central United States: An economic analysis. AN - 15811669; 2414556 AB - Interest in using intensive silviculture to produce high yields of biomass for energy has increased remarkably in the north central region of the United States. The North Central Forest Experiment Station is cooperating with others in establishing trial plantations throughout the north central region to obtain accurate estimates of biomass yields and costs of producing biomass for energy. The financial attractiveness of two woody biomass plantation alternatives for agricultural land was investigated-a basic short-rotation intensive culture plantation system on average agricultural land and a system on erodible agricultural land that is eligible for government financial incentives. Early growth from selected trial plantations has been greater than expected. JF - Energy Sources AU - Lothner, D C Y1 - 1991 PY - 1991 DA - 1991 SP - 111 EP - 117 VL - 13 IS - 1 KW - United States KW - Health & Safety Science Abstracts KW - biomass KW - agriculture KW - economics KW - energy recovery KW - H SE1.26:ENERGY CONSERVATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15811669?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+Sources&rft.atitle=Short-rotation+energy+plantations+in+north+central+United+States%3A+An+economic+analysis.&rft.au=Lothner%2C+D+C&rft.aulast=Lothner&rft.aufirst=D&rft.date=1991-01-01&rft.volume=13&rft.issue=1&rft.spage=111&rft.isbn=&rft.btitle=&rft.title=Energy+Sources&rft.issn=00908312&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Attack strategy as an indicator of host range in metopiine and pimpline ichneumonidae (Hymenoptera). AN - 15810715; 2419818 AB - Askew & Shaw tested the relationship between attack strategy and host range by comparing the number of host families for idiobiont and koinobiont chalcidoid Hymenoptera associated with arboreal leaf miners in Britain. They found that idiobionts attack about 2.8 times more families of hosts than koinobionts, indicating that in these communities, idiobiosis/koinobiosis is quantitatively related to the degree of host specialization. However, beyond this test, there are no quantitative data that idiobionts generally have broader host ranges than koinobionts. Our purpose here is to test the hypothesis further by comparing the known host associations of two subfamilies of Ichneumonidae which attack forest Lepidoptera: One composed of idiobionts (Pimplinae; excluding the tribe Polysphinctini which are associated with spiders) and the other koinobionts (Metopiinae). JF - Ecological Entomology AU - Sheehan, W AU - Hawkins, BA AD - Insect Biol. and Pop. Manage. Res. Lab., USDA-ARS, P.O. Box 748, Tifton, GA 31793, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 129 EP - 131 VL - 16 IS - 1 SN - 0307-6946, 0307-6946 KW - Hymenoptera KW - koinobiosis KW - idiobiosis KW - Pimplinae KW - Metopiinae KW - Ecology Abstracts; Entomology Abstracts KW - host range KW - Ichneumonidae KW - parasitoids KW - D 04659:Insects KW - Z 05201:Parasitism: entomophagous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15810715?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Entomology&rft.atitle=Attack+strategy+as+an+indicator+of+host+range+in+metopiine+and+pimpline+ichneumonidae+%28Hymenoptera%29.&rft.au=Sheehan%2C+W%3BHawkins%2C+BA&rft.aulast=Sheehan&rft.aufirst=W&rft.date=1991-01-01&rft.volume=16&rft.issue=1&rft.spage=129&rft.isbn=&rft.btitle=&rft.title=Ecological+Entomology&rft.issn=03076946&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Ichneumonidae; host range; parasitoids ER - TY - JOUR T1 - Relationship between leaf freckles and wilt severity and yield losses in closely related maize hybrids. AN - 15782436; 2396822 AB - The relationship between severity of leaf freckles and wilt, caused by Clavibacter michiganense subsp. nebraskense , and the percentage of grain yield loss was examined in a set of 42 closely related maize hybrids. Forty-two sister inbred lines, derived from a modified backcrossing program that used the inbred A632 as the recurrent parent, were crossed to A619. The resulting hybrids were evaluated over 2 yr in a split-plot field experiment with hybrids as whole plots and inoculated vs. uninoculated treatments as split plots. The hybrids varied widely in reaction of leaf freckles and wilt and in yield loss sustained from the disease. The percentages of yield loss were significantly correlated with disease severities in both years and in the combined analysis. Several hybrids had high disease severity but sustained insignificant yield loss compared with susceptible hybrids, indicating possible leaf freckles and wilt tolerance. JF - Phytopathology AU - Carson, M L AU - Wicks, ZW III AD - USDA-ARS, Box 7616, Dep. Plant Pathol., North Carolina State Univ., Raleigh, NC 27695-7616, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 95 EP - 98 VL - 81 IS - 1 SN - 0331-949X, 0331-949X KW - Clavibacter michiganense KW - subsp.nebraskense KW - hybrids KW - yield KW - Gross's wilt KW - leaf freckles KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - wilt KW - Zea mays KW - disease tolerance KW - leaves KW - J 02880:Plant diseases KW - A 01026:Gramineous crops UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15782436?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Phytopathology&rft.atitle=Relationship+between+leaf+freckles+and+wilt+severity+and+yield+losses+in+closely+related+maize+hybrids.&rft.au=Carson%2C+M+L%3BWicks%2C+ZW+III&rft.aulast=Carson&rft.aufirst=M&rft.date=1991-01-01&rft.volume=81&rft.issue=1&rft.spage=95&rft.isbn=&rft.btitle=&rft.title=Phytopathology&rft.issn=0331949X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Zea mays; wilt; leaves; disease tolerance ER - TY - JOUR T1 - Dissipation of alachlor under in-situ and simulated vadose zone conditions AN - 13730158; 199102877 AB - A field study was conducted to determine the effect of in-situ conditions 0, 30 and 100 cm below the soil surface on the degradation of alachlor in groundwater. A laboratory experiment was conducted to determine the effect of oxygen content and soil on alachlor degradation in groundwater. No degradation occurred when alachlor was exposed to surface conditions (0 cm). The average half life of alachlor at 30 and 100 cm depths was more than 56 d. The long half life indicated that microbial degradation might have been limited by the microbial population and the dissolved organic carbon content of the groundwater. The oxygen level did not affect the overall degradation level but it did affect the relative distribution of carbon-14 between soil and water. No degradation occurred in a no-soil treatment or in sterile surface soil. JF - Bulletin of Environmental Contamination and Toxicology AU - Isensee, A R AD - USDA-ARS, Beltsville, Md. Y1 - 1991 PY - 1991 DA - 1991 SP - 519 EP - 526 VL - 46 IS - 4 SN - 0007-4861, 0007-4861 KW - Modelling (-general-) KW - Aqualine Abstracts KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13730158?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+Environmental+Contamination+and+Toxicology&rft.atitle=Dissipation+of+alachlor+under+in-situ+and+simulated+vadose+zone+conditions&rft.au=Isensee%2C+A+R&rft.aulast=Isensee&rft.aufirst=A&rft.date=1991-01-01&rft.volume=46&rft.issue=4&rft.spage=519&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+Environmental+Contamination+and+Toxicology&rft.issn=00074861&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Direct solution to surface irrigation advance inverse problem AN - 13729025; 199104580 AB - The double-sweep routine commonly used to solve the continuity and momentum equations for surface irrigation models was modified to solve one global parameter at each time step. A procedure was developed for solving for either one infiltration parameter, the Kostiakov k parameter, or one roughness parameter, the Manning n parameter using the equations of continuity and momentum and a series of known advance times and distances. A procedure for determining the shape of the infiltration function, Kostiakov a, was also developed. The sensitivity of this last parameter to the assumptions made and to measurement errors is discussed. JF - Journal of Irrigation and Drainage Engineering AU - Clemmens, A J AD - USDA/ARS Phoenix, Ariz. Y1 - 1991 PY - 1991 DA - 1991 SP - 578 EP - 594 VL - 117 IS - 4 SN - 0733-9437, 0733-9437 KW - Modelling (-general-) KW - Aqualine Abstracts KW - AQ 00005:Underground Services and Water Use UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13729025?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Irrigation+and+Drainage+Engineering&rft.atitle=Direct+solution+to+surface+irrigation+advance+inverse+problem&rft.au=Clemmens%2C+A+J&rft.aulast=Clemmens&rft.aufirst=A&rft.date=1991-01-01&rft.volume=117&rft.issue=4&rft.spage=578&rft.isbn=&rft.btitle=&rft.title=Journal+of+Irrigation+and+Drainage+Engineering&rft.issn=07339437&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Field study on irrigation delivery performance AN - 13727211; 199104579 AB - The ability of an irrigation district to match water deliveries to farmers' requirements and to account for deliveries was assessed by comparing deliveries along 2 monitored lateral canals with the associated orders and bills. No bill could be found for 16.8 per cent of deliveries. Seventy-two per cent of deliveries occurred within a day of the required delivery date, which was within the period allowed for in irrigation district policy. Deliveries were also assessed in terms of flow rate, duration and accuracy of billing. Economic and environmental effects of inaccurate deliveries are discussed. JF - Journal of Irrigation and Drainage Engineering AU - Palmer, J D AU - Clemmens, A J AU - Dedrick, A R AD - USDA/ARS Phoenix, Ariz. Y1 - 1991 PY - 1991 DA - 1991 SP - 567 EP - 577 VL - 117 IS - 4 SN - 0733-9437, 0733-9437 KW - Aqualine Abstracts KW - AQ 00005:Underground Services and Water Use UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13727211?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Irrigation+and+Drainage+Engineering&rft.atitle=Field+study+on+irrigation+delivery+performance&rft.au=Palmer%2C+J+D%3BClemmens%2C+A+J%3BDedrick%2C+A+R&rft.aulast=Palmer&rft.aufirst=J&rft.date=1991-01-01&rft.volume=117&rft.issue=4&rft.spage=567&rft.isbn=&rft.btitle=&rft.title=Journal+of+Irrigation+and+Drainage+Engineering&rft.issn=07339437&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Deposition of atmospheric ions to pine branches and surrogate surfaces in the vicinity of Emerald lake watershed, Sequoia national park AN - 13721848; S199240632 AB - Dry deposition was measured on branches of the native conifers Pinus contorta and Pinus monticola, with or without Teflon coating, and on 2 surrogate surfaces (nylon and paper filters) during three 1-2 week exposure periods in summer 1987 on the western slope of the Sierra Nevada, Calif. Deposition fluxes of anions and cations were similar on all natural surfaces but considerably higher on both surrogate surfaces, and Duncan's multiple range test and orthogonal comparisons indicated that nylon and paper filters were very poor surrogates for estimating deposition on natural surfaces. There was a large deficit of anions compared to cations for all surfaces. Deposition fluxes of nitrate, ammonium and sulphate to pines were considerably higher than those measured in the eastern Sierra Nevada during the same period, but several times lower than fluxes at a highly polluted site in the San Gabriel mountains. High deposition fluxes of nitrate and ammonium ions compared to sulphate ions indicated the importance of nitrogen compound deposition to vegetation in the study area, and the possible role of organic acids in dry deposition processes also required further study. There are 33 references. JF - Atmospheric Environment AU - Bytnerowicz, A AU - Dawson, P J AU - Morrison, CL AU - Poe, M P AD - USDA Forest Service, Riverside, Calif. Y1 - 1991 PY - 1991 DA - 1991 SP - 2203 EP - 2210 VL - 25A IS - 10 SN - 1352-2310, 1352-2310 KW - Rilsan KW - Filters (see also packed columns, groups below) KW - Pollution (s/a contamination, individ grps below) KW - Aqualine Abstracts KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13721848?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=Deposition+of+atmospheric+ions+to+pine+branches+and+surrogate+surfaces+in+the+vicinity+of+Emerald+lake+watershed%2C+Sequoia+national+park&rft.au=Bytnerowicz%2C+A%3BDawson%2C+P+J%3BMorrison%2C+CL%3BPoe%2C+M+P&rft.aulast=Bytnerowicz&rft.aufirst=A&rft.date=1991-01-01&rft.volume=25A&rft.issue=10&rft.spage=2203&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - SuppNotes - Publication focus: Case Study. N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Estimating changes in recreational fishing participation from national water quality policies AN - 13720916; S199240015 AB - Changes in water-based recreational activity were among the off-site effects of policies affecting levels of agricultural nonpoint-source pollution, and a complete evaluation of these effects should connect major changes in water quality with changes in recreational activity. Experience with a sequential decision model suggested that changes in recreational fishing activity due to regional water quality improvements could be simulated in an aggregate sense. A participation model and a visitation model, together describing an individual's decisions about fishing, were useful in estimating the number of extra days devoted to fishing as a result of water quality improvements. JF - Water Resources Research AU - Ribaudo, MO AU - Piper, S L AD - USDA, Washington, D.C. Y1 - 1991 PY - 1991 DA - 1991 SP - 1757 EP - 1763 VL - 27 IS - 7 SN - 0043-1397, 0043-1397 KW - Modelling (-general-) KW - Pollution (s/a contamination, individ grps below) KW - Aqualine Abstracts KW - AQ 00005:Underground Services and Water Use UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13720916?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Estimating+changes+in+recreational+fishing+participation+from+national+water+quality+policies&rft.au=Ribaudo%2C+MO%3BPiper%2C+S+L&rft.aulast=Ribaudo&rft.aufirst=MO&rft.date=1991-01-01&rft.volume=27&rft.issue=7&rft.spage=1757&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - SuppNotes - Publication focus: Theoretical. N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Effects of forest fertilization on stream water chemistry in the Appalachians AN - 13720760; 199200044 AB - The effect of forest fertilization on streamwater chemistry was monitored in 2 mountainous catchments in the Fernow Experimental Forest which was planted with mature mixed hardwoods. Simultaneous treatment with 336 kg nitrogen per ha as ammonium nitrate and 225 kg phosphate per ha as triple superphosphate increased predicted untreated annual nutrient outputs in the first year after treatment by more than 18 times for nitrogen ions and up to 3 times for calcium and magnesium ions; outputs remained significantly elevated during the 3 post-treatment years studied. Phosphate outputs decreased slightly after treatment, probably due to phosphorus-limiting soil conditions, but increased by 44-65 per cent in the third post-treatment year. Stream exports accounted for only about 20 per cent applied nitrogen, and estimated potential losses to deep seepage were substantial on the leakier catchment. When nutrient losses associated with groundwater recharge were included, nitrogen losses from both catchments averaged 27.5 per cent. Less than 1 per cent applied phosphorus was exported from either catchment. Forest fertilization in the central Appalachians would alter streamwater chemistry but percentage nutrient losses could be maintained at acceptable levels. JF - Water Resources Bulletin AU - Edwards, P J AU - Kochenderfer, J N AU - Seegrist, D W AD - USDA Forest Service, Parsons, W. Va. Y1 - 1991 PY - 1991 DA - 1991 SP - 265 EP - 274 VL - 27 IS - 2 SN - 0043-1370, 0043-1370 KW - Ammonium nitrate KW - Reduction KW - Aqualine Abstracts KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13720760?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Bulletin&rft.atitle=Effects+of+forest+fertilization+on+stream+water+chemistry+in+the+Appalachians&rft.au=Edwards%2C+P+J%3BKochenderfer%2C+J+N%3BSeegrist%2C+D+W&rft.aulast=Edwards&rft.aufirst=P&rft.date=1991-01-01&rft.volume=27&rft.issue=2&rft.spage=265&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Bulletin&rft.issn=00431370&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - SuppNotes - Publication focus: Case Study. N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Assessing the spatial distribution of evapotranspiration using remotely sensed inputs AN - 13720199; 199200958 AB - The development of remote sensing techniques is outlined and the evaluation of evaporation using remotely sensed data on both local and regional scales reviewed. Analytical approaches adopted are described including the local-scale energy balance (LSEB) method and sensitivity analysis of LSEB. Problems encountered in the development of operational systems are discussed including spatial resolution, atmospheric interference, estimation of aerodynamic resistance, spatial extrapolation of ground-based meteorological data, partial vegetation cover and the extension of instantaneous values to daily totals. Resolution of these problems and the future prospects for operational monitoring for evapotranspiration are examined. There are 125 references. JF - Journal of Environmental Quality AU - Moran AU - Jackson, R D AD - USDA-ARS, Phoenix, Ariz. Y1 - 1991 PY - 1991 DA - 1991 SP - 725 EP - 737 VL - 20 IS - 4 SN - 0047-2425, 0047-2425 KW - Analysis KW - Spatial KW - Aqualine Abstracts KW - AQ 00001:Water Resources and Supplies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13720199?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Assessing+the+spatial+distribution+of+evapotranspiration+using+remotely+sensed+inputs&rft.au=Moran%3BJackson%2C+R+D&rft.aulast=Moran&rft.aufirst=&rft.date=1991-01-01&rft.volume=20&rft.issue=4&rft.spage=725&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - A functional model of solute transport that accounts for bypass AN - 13720130; S199240302 AB - A simplified mathematical model of 1-dimensional solute transport was developed which simulated the vertical movement of trace elements and non-volatile organic chemicals through the vadose zone of the soil, while taking account of hydraulic bypass. Plant water uptake was taken into account, assuming no uptake of solutes. The model was tested by application to movement of chloride through a soil lysimeter for 1100 d. The best simulation of the measured chloride data was obtained using a spatially and temporarily variable mobility coefficient. JF - Journal of Environmental Quality AU - Corwin, D L AU - Waggoner, B L AU - Rhoades, J D AD - USDA-ARS, Riverside, Calif. Y1 - 1991 PY - 1991 DA - 1991 SP - 647 EP - 658 VL - 20 IS - 3 SN - 0047-2425, 0047-2425 KW - Modelling (-general-) KW - Aqualine Abstracts KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13720130?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=A+functional+model+of+solute+transport+that+accounts+for+bypass&rft.au=Corwin%2C+D+L%3BWaggoner%2C+B+L%3BRhoades%2C+J+D&rft.aulast=Corwin&rft.aufirst=D&rft.date=1991-01-01&rft.volume=20&rft.issue=3&rft.spage=647&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - SuppNotes - Publication focus: Experimental. N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - What are we doing to water AN - 13718984; S199240656 AB - The impact of rapid development of water resources, together with increasing dependence on high technology input, on the resources themselves is examined and the environmental awareness now being integrated with water management discussed. The benefits and disadvantages of agricultural engineering practices (such as fertilizers, pesticides, irrigation and drainage) are considered and the extent of agriculturally induced groundwater contamination assessed. Recommended actions to reduce this contamination are outlined. JF - Agricultural Engineering AU - van Schilfgaarde, J AD - USDA, Fort Collins, Colo. Y1 - 1991 PY - 1991 DA - 1991 SP - 8 EP - 10 VL - 72 IS - 3 KW - Doing KW - Reduction KW - Aqualine Abstracts KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13718984?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Agricultural+Engineering&rft.atitle=What+are+we+doing+to+water&rft.au=van+Schilfgaarde%2C+J&rft.aulast=van+Schilfgaarde&rft.aufirst=J&rft.date=1991-01-01&rft.volume=72&rft.issue=3&rft.spage=8&rft.isbn=&rft.btitle=&rft.title=Agricultural+Engineering&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Precipitation distributions and Green-Ampt runoff AN - 13717900; 199200567 AB - A Green-Ampt infiltration model and the Soil Conservation Service's TR-20 hydrograph model was used to compute 10-year and 100-year storm runoff volumes and peak discharges. The results were compared with predictions made using the U.S. Geological Survey's regional regression equations relating peak discharge to drainage area for hypothetical catchments similar to those of eastern Montana. The application of the Green-Ampt equation led to estimates of volume and peak discharge sustainability greater than those estimated using the Geological Survey equations. The closest match was produced by the Soil Conservation Service type-I distribution for the frequencies and drainage areas considered. JF - Journal of Irrigation and Drainage Engineering AU - van Mullem, JA AD - Soil Conservation Service, Bozeman, Mont. Y1 - 1991 PY - 1991 DA - 1991 SP - 944 EP - 959 VL - 117 IS - 6 SN - 0733-9437, 0733-9437 KW - Green-Ampt Approach KW - Modelling (-general-) KW - U.s. geological survey KW - Aqualine Abstracts KW - AQ 00001:Water Resources and Supplies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13717900?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Irrigation+and+Drainage+Engineering&rft.atitle=Precipitation+distributions+and+Green-Ampt+runoff&rft.au=van+Mullem%2C+JA&rft.aulast=van+Mullem&rft.aufirst=JA&rft.date=1991-01-01&rft.volume=117&rft.issue=6&rft.spage=944&rft.isbn=&rft.btitle=&rft.title=Journal+of+Irrigation+and+Drainage+Engineering&rft.issn=07339437&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - SuppNotes - Publication focus: Theoretical. N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Variation in polygalacturonase production among Aspergillus flavus isolates. AN - 80309604; 2128015 AB - Pectinase production by Aspergillus flavus was determined by measuring clear zones formed around colonies stained with ruthenium red. Several isolates produced red zones instead of clear zones. Red zones were reproduced with pectinesterase and correlated with absence of specific polygalacturonases. Of 87 isolates tested, 15 produced red zones. JF - Applied and environmental microbiology AU - Cotty, P J AU - Cleveland, T E AU - Brown, R L AU - Mellon, J E AD - Southern Regional Research Center, U.S. Department of Agriculture, New Orleans, Louisiana 70179-0687. Y1 - 1990/12// PY - 1990 DA - December 1990 SP - 3885 EP - 3887 VL - 56 IS - 12 SN - 0099-2240, 0099-2240 KW - Aflatoxins KW - 0 KW - Polygalacturonase KW - EC 3.2.1.15 KW - Index Medicus KW - Aflatoxins -- biosynthesis KW - Soil Microbiology KW - Gossypium KW - Aspergillus flavus -- enzymology KW - Polygalacturonase -- biosynthesis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80309604?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+environmental+microbiology&rft.atitle=Variation+in+polygalacturonase+production+among+Aspergillus+flavus+isolates.&rft.au=Cotty%2C+P+J%3BCleveland%2C+T+E%3BBrown%2C+R+L%3BMellon%2C+J+E&rft.aulast=Cotty&rft.aufirst=P&rft.date=1990-12-01&rft.volume=56&rft.issue=12&rft.spage=3885&rft.isbn=&rft.btitle=&rft.title=Applied+and+environmental+microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-05-06 N1 - Date created - 1991-05-06 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Cited By: J Invertebr Pathol. 1965 Dec;7(4):513-4 [5848798] Appl Microbiol. 1975 Dec;30(6):1034-5 [813577] J Gen Microbiol. 1969 Nov;59(1):119-24 [5365362] N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Microflora of partially processed lettuce. AN - 80309237; 2082830 AB - Bacteria, yeasts, and molds isolated from partially processed iceberg lettuce were taxonomically classified. The majority of bacterial isolates were gram-negative rods. Pseudomonas, Erwinia, and Serratia species were commonly found. Yeasts most frequently isolated from lettuce included members of the genera Candida, Cryptococcus, Pichia, Torulaspora, and Trichosporon. Comparatively few molds were isolated; members of the genera Rhizopus, Cladosporium, Phoma, Aspergillus, and Penicillium were identified. JF - Applied and environmental microbiology AU - Magnuson, J A AU - King, A D AU - Török, T AD - Western Regional Research Center, U.S. Department of Agriculture, Albany, California 94710. Y1 - 1990/12// PY - 1990 DA - December 1990 SP - 3851 EP - 3854 VL - 56 IS - 12 SN - 0099-2240, 0099-2240 KW - Index Medicus KW - Vegetables KW - Food Handling KW - Fungi -- classification KW - Food Microbiology KW - Bacteria -- isolation & purification KW - Bacteria -- classification KW - Fungi -- isolation & purification UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80309237?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+environmental+microbiology&rft.atitle=Microflora+of+partially+processed+lettuce.&rft.au=Magnuson%2C+J+A%3BKing%2C+A+D%3BT%C3%B6r%C3%B6k%2C+T&rft.aulast=Magnuson&rft.aufirst=J&rft.date=1990-12-01&rft.volume=56&rft.issue=12&rft.spage=3851&rft.isbn=&rft.btitle=&rft.title=Applied+and+environmental+microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-05-06 N1 - Date created - 1991-05-06 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Cited By: Appl Environ Microbiol. 1986 Jul;52(1):59-63 [3089158] Am J Epidemiol. 1988 Dec;128(6):1312-21 [3057879] Appl Environ Microbiol. 1989 Aug;55(8):1925-7 [2506809] Appl Microbiol. 1972 Oct;24(4):567-70 [4628795] Appl Microbiol. 1974 Dec;28(6):987-91 [4217591] Appl Environ Microbiol. 1976 Mar;31(3):453-4 [820254] Appl Environ Microbiol. 1976 Jun;31(6):847-52 [820256] N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Partial reduction in ribulose 1,5-bisphosphate carboxylase/oxygenase activity by carboxypeptidase A. AN - 80224975; 2275551 AB - Treatment with carboxypeptidase A of ribulose bisphosphate carboxylase/oxygenase (rubisco) from spinach and Chlamydomonas, but not tobacco, reduced activity by 60-70%. Further studies with the spinach enzyme indicated that only one amino acid from each of the large (valine) and small (tyrosine) subunits was removed and the loss of activity was correlated with modification of the large subunit. The modified enzyme also had a two-fold greater Km for RuBP but CO2/O2 specificity was only 5% lower and may not be significantly different. The relative rates of release of valine and tyrosine also depended on the presence or absence of RuBP or CO2 plus Mg during treatment. The results indicate that the C-terminal amino acid in the large subunit of spinach, which is not located near the active site region, plays a previously unrecognized role in determining the catalytic activity of the enzyme. JF - Archives of biochemistry and biophysics AU - Portis, A R AD - United States Department of Agriculture, University of Illinois, Urbana 61801. Y1 - 1990/12// PY - 1990 DA - December 1990 SP - 397 EP - 400 VL - 283 IS - 2 SN - 0003-9861, 0003-9861 KW - Macromolecular Substances KW - 0 KW - Carboxypeptidases KW - EC 3.4.- KW - Carboxypeptidases A KW - EC 3.4.17.1 KW - Ribulose-Bisphosphate Carboxylase KW - EC 4.1.1.39 KW - Index Medicus KW - Plants, Toxic KW - Tobacco -- enzymology KW - Chlamydomonas -- enzymology KW - Kinetics KW - Plants -- enzymology KW - Ribulose-Bisphosphate Carboxylase -- antagonists & inhibitors KW - Carboxypeptidases -- pharmacology KW - Carboxypeptidases -- metabolism KW - Ribulose-Bisphosphate Carboxylase -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80224975?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Archives+of+biochemistry+and+biophysics&rft.atitle=Partial+reduction+in+ribulose+1%2C5-bisphosphate+carboxylase%2Foxygenase+activity+by+carboxypeptidase+A.&rft.au=Portis%2C+A+R&rft.aulast=Portis&rft.aufirst=A&rft.date=1990-12-01&rft.volume=283&rft.issue=2&rft.spage=397&rft.isbn=&rft.btitle=&rft.title=Archives+of+biochemistry+and+biophysics&rft.issn=00039861&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-02-28 N1 - Date created - 1991-02-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Stimulation and release of prostaglandins and thromboxane from macrophages by cotton dust associated lipopolysaccharides. AN - 80208636; 2270833 AB - Decreases in the ventilation capacity of human lungs following the inspiration of cotton dust correlates more closely with the concentration of endotoxin in the dust than with any other parameter measured thus far. A lipopolysaccharide isolated from the endotoxin of Enterobacter agglomerans, a common bacterial contaminant of cotton fiber, stimulated isolated rat macrophages to produce and release prostaglandins 6 keto-PGF1 alpha, PGF2 alpha, PGE2, PGD2, PGA2, and PGB2 and thromboxane B2. If in vivo human pulmonary macrophages respond in a similar fashion by releasing these arachidonic acid metabolites or their immediate precursors in response to stimulation by cotton dust associated lipopolysaccharides, some of the acute pulmonary changes observed in humans following inspiration of cotton dust could be caused by increased release of these biologically active compounds. Daily release of arachidonic acid metabolites at concentrations significantly above normal homeostatic levels could produce some of the pathophysiologic pulmonary changes observed in byssinotics. This paper reports the results of an experiment to quantitate arachidonic acid metabolite production following macrophage stimulation by E. agglomerans lipopolysaccharide. Procedures are described for the stimulation of macrophages by cotton dust associated lipopolysaccharide, for the separation and identification of arachidonic acid and its metabolites by high-performance liquid chromatography, and for the quantification of those products by radioisotope techniques. JF - American Industrial Hygiene Association journal AU - Elissalde, M H AU - Beier, R C AD - United States Department of Agriculture, Food Animal Protection Research Laboratory, College Station, TX 77840. Y1 - 1990/12// PY - 1990 DA - December 1990 SP - 652 EP - 658 VL - 51 IS - 12 SN - 0002-8894, 0002-8894 KW - Lipopolysaccharides KW - 0 KW - Prostaglandins KW - Thromboxane B2 KW - 54397-85-2 KW - Index Medicus KW - Rats KW - Animals KW - Scintillation Counting KW - Enterobacter KW - Male KW - Chromatography, High Pressure Liquid KW - Byssinosis -- metabolism KW - Lipopolysaccharides -- pharmacology KW - Prostaglandins -- biosynthesis KW - Thromboxane B2 -- biosynthesis KW - Macrophages -- drug effects KW - Macrophages -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80208636?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Industrial+Hygiene+Association+journal&rft.atitle=Stimulation+and+release+of+prostaglandins+and+thromboxane+from+macrophages+by+cotton+dust+associated+lipopolysaccharides.&rft.au=Elissalde%2C+M+H%3BBeier%2C+R+C&rft.aulast=Elissalde&rft.aufirst=M&rft.date=1990-12-01&rft.volume=51&rft.issue=12&rft.spage=652&rft.isbn=&rft.btitle=&rft.title=American+Industrial+Hygiene+Association+journal&rft.issn=00028894&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-02-21 N1 - Date created - 1991-02-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - The effects of low levels of dietary toxic weed seeds (jimson weed, Datura stramonium and sicklepod, Cassia obtusifolia) on the relative size of rat liver and levels and function of cytochrome P-450. AN - 80174550; 2260115 AB - Preliminary studies and previous work by other investigators have shown that jimsonweed and sicklepod seeds are very toxic. Such seeds and others are co-harvested and are often found mingling with commercial grain destined for human consumption. Low levels of these seeds were studied here to determine whether such levels would show signs of intoxication in rats by modulating growth, liver weight and relative size, cytochrome P-450 levels and function, and other relevant parameters proven to be sensitive to low levels of toxicants. Assessment of these factors showed that jimson weed does give indications of intoxication at low levels, whereas the highly toxic sicklepod does not give discernible indications. JF - Toxicology letters AU - Crawford, L AU - Friedman, M AD - U.S. Department of Agriculture, Western Regional Research Center, Albany, CA 94710. Y1 - 1990/12// PY - 1990 DA - December 1990 SP - 175 EP - 181 VL - 54 IS - 2-3 SN - 0378-4274, 0378-4274 KW - Cytochrome P-450 Enzyme System KW - 9035-51-2 KW - Index Medicus KW - Rats, Inbred Strains KW - Rats KW - Administration, Oral KW - Animals KW - Oxygen Consumption KW - Body Weight -- drug effects KW - Cytochrome P-450 Enzyme System -- metabolism KW - Male KW - Organ Size -- drug effects KW - Plants, Toxic KW - Seeds KW - Liver -- enzymology KW - Plant Poisoning -- enzymology KW - Liver -- drug effects KW - Datura stramonium KW - Plants, Medicinal UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80174550?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology+letters&rft.atitle=The+effects+of+low+levels+of+dietary+toxic+weed+seeds+%28jimson+weed%2C+Datura+stramonium+and+sicklepod%2C+Cassia+obtusifolia%29+on+the+relative+size+of+rat+liver+and+levels+and+function+of+cytochrome+P-450.&rft.au=Crawford%2C+L%3BFriedman%2C+M&rft.aulast=Crawford&rft.aufirst=L&rft.date=1990-12-01&rft.volume=54&rft.issue=2-3&rft.spage=175&rft.isbn=&rft.btitle=&rft.title=Toxicology+letters&rft.issn=03784274&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-01-29 N1 - Date created - 1991-01-29 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - A user-friendly, functional model of contaminant transport through the vadose zone AN - 52824320; 1996-055046 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Corwin, D L Y1 - 1990/12// PY - 1990 DA - December 1990 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1990 KW - solute transport KW - water quality KW - unsteady flow KW - halogens KW - data processing KW - unsaturated zone KW - simulation KW - ground water KW - transport KW - chloride ion KW - mass balance KW - trace elements KW - mobility KW - soils KW - liquid phase KW - chlorine KW - concentration KW - pollutants KW - prediction KW - pollution KW - adsorption KW - water balance KW - TETrans KW - porosity KW - aquifers KW - models KW - computer programs KW - boron KW - hydraulic conductivity KW - leaching KW - permeability KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52824320?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=A+user-friendly%2C+functional+model+of+contaminant+transport+through+the+vadose+zone&rft.au=Corwin%2C+D+L&rft.aulast=Corwin&rft.aufirst=D&rft.date=1990-12-01&rft.volume=1990&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1990 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 21 N1 - PubXState - MI N1 - Document feature - illus. N1 - SuppNotes - Paper No. 90-2547 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - adsorption; aquifers; boron; chloride ion; chlorine; computer programs; concentration; data processing; ground water; halogens; hydraulic conductivity; leaching; liquid phase; mass balance; mobility; models; permeability; pollutants; pollution; porosity; prediction; simulation; soils; solute transport; TETrans; trace elements; transport; unsaturated zone; unsteady flow; water balance; water quality ER - TY - JOUR T1 - Advanced numerical methods in groundwater and water quality modeling AN - 52824251; 1996-055045 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Ascough, James C, II AU - Monke, E J AU - Lane, L J Y1 - 1990/12// PY - 1990 DA - December 1990 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1990 KW - computer programs KW - water quality KW - numerical models KW - data processing KW - hydraulic conductivity KW - equations KW - algorithms KW - preferential flow KW - ground water KW - aquifers KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52824251?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Advanced+numerical+methods+in+groundwater+and+water+quality+modeling&rft.au=Ascough%2C+James+C%2C+II%3BMonke%2C+E+J%3BLane%2C+L+J&rft.aulast=Ascough&rft.aufirst=James&rft.date=1990-12-01&rft.volume=1990&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1990 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 10 N1 - PubXState - MI N1 - Document feature - illus. N1 - SuppNotes - Paper No. 90-2544 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - algorithms; aquifers; computer programs; data processing; equations; ground water; hydraulic conductivity; numerical models; preferential flow; water quality ER - TY - JOUR T1 - Erosion risk assessment for soil conservation planning AN - 52817345; 1996-055054 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Thomas, A W AU - Snyder, W M AU - Mills, W C AU - Dillard, A L Y1 - 1990/12// PY - 1990 DA - December 1990 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1990 KW - United States KW - erosion KW - rills KW - Universal Soil Loss Equation KW - erosion features KW - simulation KW - conservation KW - climate effects KW - soil erosion KW - soils KW - hydrology KW - experimental studies KW - rainfall KW - prediction KW - water erosion KW - equations KW - preventive measures KW - Oconee County Georgia KW - models KW - physical properties KW - risk assessment KW - Georgia KW - erodibility KW - slope stability KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52817345?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Erosion+risk+assessment+for+soil+conservation+planning&rft.au=Thomas%2C+A+W%3BSnyder%2C+W+M%3BMills%2C+W+C%3BDillard%2C+A+L&rft.aulast=Thomas&rft.aufirst=A&rft.date=1990-12-01&rft.volume=1990&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1990 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 14 N1 - PubXState - MI N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Paper No. 90-2570 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - climate effects; conservation; equations; erodibility; erosion; erosion features; experimental studies; Georgia; hydrology; models; Oconee County Georgia; physical properties; prediction; preventive measures; rainfall; rills; risk assessment; simulation; slope stability; soil erosion; soils; United States; Universal Soil Loss Equation; water erosion ER - TY - JOUR T1 - Mutational analysis of viroid pathogenicity: tomato apical stunt viroid. AN - 80389059; 2131097 AB - A series of nucleotide substitutions within the pathogenicity domain of tomato apical stunt viroid have been evaluated for their effects upon infectivity and symptom expression. None of the 12 A----G substitutions and one C----U substitution that were examined abolished infectivity in a whole plant bioassay, and the resulting progeny were characterized by nucleotide sequence analysis of cDNAs amplified by the polymerase chain reaction. Four of the 13 substitutions gave rise to altered progeny, but the patterns of sequence changes observed were unexpectedly complex. Mutations that did not rapidly revert to the wild-type sequence are located near the right border of the pathogenicity domain, a region which shows considerable natural sequence variability. None had a detectable effect upon symptom expression. The ability to observe viroid sequence evolution in vivo may provide insight into the molecular interactions responsible for viroid host range and symptom formation. JF - Molecular plant-microbe interactions : MPMI AU - Owens, R A AD - Microbiology and Plant Pathology Laboratory, Plant Sciences Institute, USDA-ARS Beltsville, MD 20705. PY - 1990 SP - 374 EP - 380 VL - 3 IS - 6 SN - 0894-0282, 0894-0282 KW - DNA, Viral KW - 0 KW - RNA, Viral KW - Index Medicus KW - Virus Replication -- genetics KW - Base Sequence KW - Molecular Sequence Data KW - DNA, Viral -- isolation & purification KW - Mutagenesis KW - Viroids -- pathogenicity KW - Plant Viruses -- genetics KW - Plant Viruses -- pathogenicity KW - Viroids -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80389059?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Molecular+plant-microbe+interactions+%3A+MPMI&rft.atitle=Mutational+analysis+of+viroid+pathogenicity%3A+tomato+apical+stunt+viroid.&rft.au=Owens%2C+R+A&rft.aulast=Owens&rft.aufirst=R&rft.date=1990-11-01&rft.volume=3&rft.issue=6&rft.spage=374&rft.isbn=&rft.btitle=&rft.title=Molecular+plant-microbe+interactions+%3A+MPMI&rft.issn=08940282&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-12-06 N1 - Date created - 1991-12-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - A dual dominant selection, dual marker gene amplification model for environmental surveillance of recombinant viral vaccines. AN - 80322809; 2087597 AB - A simple dual dominant selection marker gene model is proposed for recombinant DNA (rDNA) viral vaccines. Marker genes are also used as targets for in vitro DNA amplification (polymerase chain reaction). Environmentally stable and destabilized rDNA viruses are easily recovered and identified. Use of the model would facilitate evaluation of pressing environmental and safety issues surrounding release of rDNA herpesviruses and poxviruses into the biosphere. JF - Research in virology AU - Katz, J B AD - Diagnostic Virology Laboratory, United States Department of Agriculture, Ames, IA 50010. PY - 1990 SP - 591 EP - 596 VL - 141 IS - 6 SN - 0923-2516, 0923-2516 KW - DNA, Recombinant KW - 0 KW - DNA, Viral KW - Genetic Markers KW - Vaccines, Synthetic KW - Viral Vaccines KW - Index Medicus KW - Environmental Monitoring KW - Polymerase Chain Reaction KW - Models, Genetic KW - Vaccines, Synthetic -- genetics KW - Herpesviridae -- immunology KW - Viral Vaccines -- genetics KW - Poxviridae -- genetics KW - Herpesviridae -- genetics KW - DNA, Recombinant -- immunology KW - Poxviridae -- immunology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80322809?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Research+in+virology&rft.atitle=A+dual+dominant+selection%2C+dual+marker+gene+amplification+model+for+environmental+surveillance+of+recombinant+viral+vaccines.&rft.au=Katz%2C+J+B&rft.aulast=Katz&rft.aufirst=J&rft.date=1990-11-01&rft.volume=141&rft.issue=6&rft.spage=591&rft.isbn=&rft.btitle=&rft.title=Research+in+virology&rft.issn=09232516&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-05-21 N1 - Date created - 1991-05-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Simulated Erosion and Fertilizer Effects on Winter Wheat Cropping Intermountain Dryland Area AN - 19114904; 9107352 AB - Topsoil losses from erosion in the intermountain dry-farming area reduces crop yields. The hypothesis was tested that the effects of erosion on water storage and wheat (Triticum aestivum L.) could be partially alleviated by applying appropriate fertilizers. Two sites were used, one on Rexburg silt loam, a coarse-silty, mixed, frigid Calcic Haploxeroll, the other on Newdale silt loam, a coarse-silty, mixed, frigid Calciorthidic Haploxeroll. Topsoil-depth treatments were +15, 0, -15, or -30 cm changes relative to the original surface. After making the soil depth changes, 54 kg P/ha were incorporated on one half of each topsoil depth plot and the other half received no P. These P or no P plots were split for applications of 0, 34 or 68 kg N/ha. Phosphorus had no effect on wheat yield. Without fertilizer N, yields on -15 and -30 cm plots were reduced 46 and 55%, respectively, but increased 69% from the addition of 15 cm of topsoil, compared with the 0 cm plot. Removing 15 and 30 cm of topsoil also reduced the upper limit of N-fertilized production to 80 and 65%, respectively, of production on undisturbed N-fertilized plots. Three kilograms fertilizer N/ha each crop year offset each centimeter of soil removed, but only to the new lower production limit. All plots had similar amounts of stored, available soil water in the spring, but a large fraction of this water remained unused at harvest on plots with 15 and 30 cm of topsoil removed because the low-yielding wheat did not use as much water. Profile water differences at harvest were no longer apparent by the next spring, following winter recharge. Unused water at harvest, which partially filled the soil profile, reduced winter infiltration and contributed to subsequent runoff from precipitation on those plots. Adding N fertilizer was only a partial solution to topsoil deficiencies. (Author's abstract) JF - Soil Science Society of America Journal SSSJD4, Vol. 54, No. 6, p 1720-1725, November/December 1990. 2 fig, 2 tab, 24 ref. AU - Massee, T W AD - USDA-ARS, Soil and Water Management Research Unit, 3793 N 3600 E. Kimberly, Idaho Y1 - 1990/11// PY - 1990 DA - Nov 1990 KW - Water Resources Abstracts KW - Agriculture KW - Crop yield KW - Fertilizers KW - Soil erosion KW - Wheat KW - Available water KW - Harvesting KW - Infiltration KW - Loam KW - Nutrient concentrations KW - Precipitation KW - Seasonal distribution KW - Silt KW - Soil treatment KW - Soil types KW - Topsoil KW - Water storage KW - SW 0870:Erosion and sedimentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19114904?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Simulated+Erosion+and+Fertilizer+Effects+on+Winter+Wheat+Cropping+Intermountain+Dryland+Area&rft.au=Massee%2C+T+W&rft.aulast=Massee&rft.aufirst=T&rft.date=1990-11-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Rainfall Distribution under a Corn Canopy: Implications for Managing Agrochemicals AN - 19096045; 9106401 AB - A greater understanding of the spatial patterns of water inputs to soil will aid the development of agricultural practices to reduce leaching and runoff of agrochemicals. A study was initiated to investigate the process of stemflow, and to provide quantitative data on the distribution of rainfall under a corn canopy. Rainfall distribution under the canopies of replicate conventional till corn plots was investigated by placing rainfall collectors at discrete locations within small 1.6-m by 0.76-m areas of the plots. Collection cups were also fixed around the stalks of individual corn plants to quantify stemflow. Results obtained from eight storm events in 1987 revealed that corn plants channel 19 to 49% of the total rain inputs down the stem to the base of the stalk. This stemflow plus the rainfall impinging directly in the planting furrow, accounted for approximately 42% of the total water inputs from a given storm event. These increased water inputs to the planting furrow may have implications in modeling solute leaching and runoff as well as to modifying current fertilizer and pesticide application methods. (Author's abstract) JF - Agronomy Journal AGJOAT, Vol. 82, No. 6, p 1166-1169, November/December 1990. 1 fig, 4 tab, 10 ref. AU - Parkin, T B AU - Codling, EE AD - USDA-ARS, National Soil Tilth Lab., 2150 Pammel Dr., Ames, IA 50011 Y1 - 1990/11// PY - 1990 DA - Nov 1990 KW - Water Resources Abstracts KW - Agricultural engineering KW - Farm management KW - Rainfall distribution KW - Rainfall-runoff relationships KW - Soil-water-plant relationships KW - Stemflow KW - Agricultural chemicals KW - Canopy KW - Corn KW - Furrows KW - Leaching KW - Path of pollutants KW - Soil water KW - Spatial distribution KW - SW 0860:Water and plants KW - SW 1060:Conservation in agricultural use UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19096045?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Rainfall+Distribution+under+a+Corn+Canopy%3A+Implications+for+Managing+Agrochemicals&rft.au=Parkin%2C+T+B%3BCodling%2C+EE&rft.aulast=Parkin&rft.aufirst=T&rft.date=1990-11-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Production of fumonisins by Fusarium moniliforme and Fusarium proliferatum isolates associated with equine leukoencephalomalacia and a pulmonary edema syndrome in swine. AN - 80247155; 2285324 AB - Fumonisin B1 (FB1) and FB2 were isolated from corn cultures of both Fusarium moniliforme and Fusarium proliferatum. Respective concentrations in culture materials of FB1 and FB2 ranged from 960 to 2,350 and 120 to 320 micrograms/g for F. moniliforme and from 1,670 to 2,790 and 150 to 320 micrograms/g for F. proliferatum. Thin-layer chromatography, gas chromatography-mass spectroscopy, high-performance liquid chromatography, and liquid secondary ion mass spectroscopy were used for detection. Fumonisins from F. proliferatum have not previously been reported. JF - Applied and environmental microbiology AU - Ross, P F AU - Nelson, P E AU - Richard, J L AU - Osweiler, G D AU - Rice, L G AU - Plattner, R D AU - Wilson, T M AD - Animal and Plant Health Inspection Service, U.S. Department of Agriculture, Ames, Iowa 50010. Y1 - 1990/10// PY - 1990 DA - October 1990 SP - 3225 EP - 3226 VL - 56 IS - 10 SN - 0099-2240, 0099-2240 KW - Fumonisins KW - 0 KW - Mycotoxins KW - fumonisin B2 KW - 116355-84-1 KW - fumonisin B1 KW - 3ZZM97XZ32 KW - Index Medicus KW - Swine KW - Animals KW - Zea mays -- microbiology KW - Food Microbiology KW - Horses KW - Disease Outbreaks KW - Pulmonary Edema -- veterinary KW - Horse Diseases -- chemically induced KW - Fusarium -- metabolism KW - Animal Feed KW - Mycotoxins -- biosynthesis KW - Fusarium -- isolation & purification KW - Pulmonary Edema -- chemically induced KW - Mycotoxins -- adverse effects KW - Food Contamination KW - Swine Diseases -- chemically induced KW - Encephalomalacia -- veterinary KW - Encephalomalacia -- chemically induced UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80247155?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+environmental+microbiology&rft.atitle=Production+of+fumonisins+by+Fusarium+moniliforme+and+Fusarium+proliferatum+isolates+associated+with+equine+leukoencephalomalacia+and+a+pulmonary+edema+syndrome+in+swine.&rft.au=Ross%2C+P+F%3BNelson%2C+P+E%3BRichard%2C+J+L%3BOsweiler%2C+G+D%3BRice%2C+L+G%3BPlattner%2C+R+D%3BWilson%2C+T+M&rft.aulast=Ross&rft.aufirst=P&rft.date=1990-10-01&rft.volume=56&rft.issue=10&rft.spage=3225&rft.isbn=&rft.btitle=&rft.title=Applied+and+environmental+microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-03-20 N1 - Date created - 1991-03-20 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Cited By: Vet Rec. 1971 May 8;88(19):484-6 [4996341] Onderstepoort J Vet Res. 1976 Sep;43(3):113-22 [1012650] J Vet Diagn Invest. 1990 Jul;2(3):213-6 [2094447] Appl Environ Microbiol. 1988 Jul;54(7):1806-11 [2901247] Onderstepoort J Vet Res. 1988 Dec;55(4):197-203 [3217091] Onderstepoort J Vet Res. 1981 Jun;48(2):129-31 [7312307] N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Prevention of coccidiosis in the chukar partridge (Alectoris chukar) by medication with sulfadimethoxine and ormetoprim (Rofenaid). AN - 80190729; 2263542 AB - Rofenaid (a 5:3 mixture of sulfadimethoxine and ormetoprim) was effective in preventing coccidiosis of chukar partridges. Levels of .0100 or .0125% sulfadimethoxine, with the corresponding level of ormetoprim in the ration, gave the best results. These levels markedly reduced mortality in severe infections (over 75% mortality in unmedicated chukars) and eliminated mortality in medicated groups when infections produced 52% mortality or less in unmedicated controls. In the latter infections, Rofenaid also protected against the depression in weight gain seen 6 days postinoculation in unmedicated chukars. Studies in uninoculated chukars showed that Rofenaid has a wide safety margin and did not produce adverse effects even at levels of .0300% sulfadimethoxine. Rofenaid should, therefore, be an effective medication for the prevention of coccidiosis in chukars in the field. Data from the present studies are being submitted to the IR-4 Program of the Food and Drug Administration for consideration of approval for the use of Rofenaid in chukar partridges. JF - Poultry science AU - Ruff, M D AU - Wilkins, G C AD - Livestock and Poultry Sciences Institute, USDA, Beltsville, Maryland 20705. Y1 - 1990/10// PY - 1990 DA - October 1990 SP - 1675 EP - 1680 VL - 69 IS - 10 SN - 0032-5791, 0032-5791 KW - Anti-Infective Agents KW - 0 KW - Drug Combinations KW - Pyrimidines KW - ormetoprim, sulfadimethoxine drug combination KW - Sulfadimethoxine KW - 30CPC5LDEX KW - Index Medicus KW - Animals KW - Poultry KW - Animal Feed KW - Body Weight -- drug effects KW - Sulfadimethoxine -- adverse effects KW - Pyrimidines -- adverse effects KW - Poultry Diseases -- prevention & control KW - Anti-Infective Agents -- therapeutic use KW - Anti-Infective Agents -- adverse effects KW - Pyrimidines -- therapeutic use KW - Sulfadimethoxine -- therapeutic use KW - Coccidiosis -- prevention & control KW - Coccidiosis -- veterinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80190729?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Poultry+science&rft.atitle=Prevention+of+coccidiosis+in+the+chukar+partridge+%28Alectoris+chukar%29+by+medication+with+sulfadimethoxine+and+ormetoprim+%28Rofenaid%29.&rft.au=Ruff%2C+M+D%3BWilkins%2C+G+C&rft.aulast=Ruff&rft.aufirst=M&rft.date=1990-10-01&rft.volume=69&rft.issue=10&rft.spage=1675&rft.isbn=&rft.btitle=&rft.title=Poultry+science&rft.issn=00325791&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-02-07 N1 - Date created - 1991-02-07 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Linkage, expression, and distribution of the pyrethroid resistance gene in the horn fly (Diptera: Muscidae). AN - 80169930; 2258511 AB - A sex-linked gene for pyrethroid resistance in the horn fly, Haematobia irritans (L.), showed complete linkage to the male-determining gene in a laboratory colony that had been inbred for 10 generations. Within susceptible, heterozygous, and resistant populations, the level of resistance that was expressed was greater for females than for males. The increase in level of resistance conferred by the gene was similar for females and males. Preliminary synergism and allelism tests supported our supposition that the same gene was responsible for resistance in California, Florida, and Texas populations. JF - Journal of economic entomology AU - McDonald, P T AU - Schmidt, C D AD - U.S. Livestock Insects Laboratory, USDA-ARS, Kerrville, Texas 78029. Y1 - 1990/10// PY - 1990 DA - October 1990 SP - 1718 EP - 1722 VL - 83 IS - 5 SN - 0022-0493, 0022-0493 KW - Insecticides KW - 0 KW - Pyrethrins KW - Permethrin KW - 509F88P9SZ KW - Index Medicus KW - Animals KW - Insecticide Resistance -- genetics KW - Male KW - Female KW - Genetic Linkage KW - Gene Expression KW - Muscidae -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80169930?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+economic+entomology&rft.atitle=Linkage%2C+expression%2C+and+distribution+of+the+pyrethroid+resistance+gene+in+the+horn+fly+%28Diptera%3A+Muscidae%29.&rft.au=McDonald%2C+P+T%3BSchmidt%2C+C+D&rft.aulast=McDonald&rft.aufirst=P&rft.date=1990-10-01&rft.volume=83&rft.issue=5&rft.spage=1718&rft.isbn=&rft.btitle=&rft.title=Journal+of+economic+entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-01-25 N1 - Date created - 1991-01-25 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Differential survival of male and female partially resistant horn flies (Diptera: Muscidae) on steers treated with permethrin. AN - 80166964; 2258510 AB - Males and females from a heterozygous, resistant strain (SR) of the horn fly, Haematobia irritans (L.), were tested for survival until reproductive maturity on steers with ear tags in outdoor, screened enclosures and on steers sprayed on the neck in an indoor isolation room. After 6 d, female SR flies on outdoor steers with one tag had 10 times greater survival than males; almost no SR flies on steers with two ear tags survived. Survival of male and female SR flies on steers sprayed on the neck was reduced during the first 24 h, but not thereafter. Lower survival of males compared with females on treated steers reflected differential survival of the sexes during exposure to treated cloths in a laboratory bioassay. Hair samples from neck, back, rump, and lower legs of steers with ear tags in outdoor pens were tested for toxicity to the SR flies. These bioassays indicated high localization of insecticide on the neck of steers with ear tags. JF - Journal of economic entomology AU - McDonald, P T AU - Schmidt, C D AD - U.S. Livestock Insects Laboratory, USDA-ARS, Kerrville, Texas 78029. Y1 - 1990/10// PY - 1990 DA - October 1990 SP - 1715 EP - 1717 VL - 83 IS - 5 SN - 0022-0493, 0022-0493 KW - Insecticides KW - 0 KW - Pyrethrins KW - Permethrin KW - 509F88P9SZ KW - Index Medicus KW - Animals KW - Cattle KW - Insecticide Resistance KW - Male KW - Female KW - Ectoparasitic Infestations -- drug therapy KW - Insecticides -- therapeutic use KW - Pyrethrins -- therapeutic use KW - Ectoparasitic Infestations -- veterinary KW - Cattle Diseases -- drug therapy KW - Muscidae UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80166964?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+economic+entomology&rft.atitle=Differential+survival+of+male+and+female+partially+resistant+horn+flies+%28Diptera%3A+Muscidae%29+on+steers+treated+with+permethrin.&rft.au=McDonald%2C+P+T%3BSchmidt%2C+C+D&rft.aulast=McDonald&rft.aufirst=P&rft.date=1990-10-01&rft.volume=83&rft.issue=5&rft.spage=1715&rft.isbn=&rft.btitle=&rft.title=Journal+of+economic+entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-01-25 N1 - Date created - 1991-01-25 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Iron regulation of ferritin gene expression. AN - 80155736; 2123493 AB - Ferritin is a ubiquitous iron-storage protein found in the cells of animals, plants, molds, and bacteria which it protects from toxic intracellular levels of iron. Ferritin stores iron within a hollow protein shell formed by subunits of two types, H and L. The 5' untranslated regions of the two subunit mRNAs contain an almost identical 28-nucleotide sequence which regulates translation by binding to a specific cell sap protein. When cell iron level is low, this repressor protein obstructs translation of stored ferritin mRNAs, whereas increased iron levels release this protein, thus permitting extensive ferritin subunit synthesis to respond rapidly. Similar motifs in the 3' untranslated region of transferrin receptor mRNA interact with this protein to regulate breakdown of the mRNA and thus change the receptor population. Finally, transcription of the H and L genes can be independently increased by iron and other factors. In the case of iron, synthesis of the L-mRNA is increased preferentially since ferritin shells with a preponderance of L-subunits store iron more efficiently. Thus regulation of ferritin synthesis at the translational and transcriptional levels and by transferrin receptor mRNA abundance at the level of breakdown provide a coordinated mechanism for protecting cells against the effects of excess iron. JF - Journal of cellular biochemistry AU - Munro, H N AD - USDA Human Nutrition Research Center on Aging, Tufts, Boston, Massachusetts 02111. Y1 - 1990/10// PY - 1990 DA - October 1990 SP - 107 EP - 115 VL - 44 IS - 2 SN - 0730-2312, 0730-2312 KW - Carrier Proteins KW - 0 KW - Iron-Regulatory Proteins KW - RNA, Messenger KW - RNA-Binding Proteins KW - Receptors, Transferrin KW - Ferritins KW - 9007-73-2 KW - Iron KW - E1UOL152H7 KW - Index Medicus KW - Animals KW - Protein Biosynthesis KW - Carrier Proteins -- metabolism KW - Sequence Homology, Nucleic Acid KW - Humans KW - Nucleic Acid Conformation KW - Protein Binding KW - RNA Processing, Post-Transcriptional KW - Rats KW - Base Sequence KW - Genes KW - Receptors, Transferrin -- biosynthesis KW - Receptors, Transferrin -- genetics KW - Protein Conformation KW - RNA, Messenger -- metabolism KW - Iron -- pharmacology KW - Ferritins -- genetics KW - Gene Expression Regulation -- drug effects KW - RNA, Messenger -- genetics KW - Ferritins -- biosynthesis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80155736?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+cellular+biochemistry&rft.atitle=Iron+regulation+of+ferritin+gene+expression.&rft.au=Munro%2C+H+N&rft.aulast=Munro&rft.aufirst=H&rft.date=1990-10-01&rft.volume=44&rft.issue=2&rft.spage=107&rft.isbn=&rft.btitle=&rft.title=Journal+of+cellular+biochemistry&rft.issn=07302312&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-01-15 N1 - Date created - 1991-01-15 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Maternal cigarette smoking during pregnancy, adiposity, social class, and perinatal outcome in Cardiff, Wales, 1965-1977. AN - 80064029; 2222619 AB - There have been several reports in which maternal nutritional status has been implicated as either a mediating or moderating factor in the relationship between maternal cigarette smoking and birthweight and perinatal survival. Also, there is evidence that the effects of maternal cigarette smoking on both intrauterine growth and fetal viability are more intense among women of lower social status. The well-maintained data set of the Cardiff Births Survey from 1965-1977 afforded an opportunity to review these issues among over 50,000 births in south Wales (the survey took place in Cardiff City through 1973 and subsequently included suburban areas of South Glamorgan). The major findings were: (1) Smoking was much more common with descending maternal social status; (2) among upper status women, smokers had similar or slightly greater mean Quetelet's indices (kg/m2) than nonsmokers. Among lower status women, smokers were considerably thinner than nonsmokers; (3) the greater the adiposity of the mother, the less the association between cigarette smoking and depressed birthweight; (4) perinatal mortality was significantly higher among heavy smokers (10 or more cigarettes a day) than among nonsmokers; and (5) neither the decrease in birthweight nor the excess mortality associated with smoking was greater among those of lower rather than upper social status, except among class I women, among whom smoking was only minimally associated with depressed birthweight. With the inclusion of the South Glamorgan suburban population in the survey after 1974, the excess mortality associated with heavy smoking dropped from 53 to 16%.(ABSTRACT TRUNCATED AT 250 WORDS) JF - American journal of perinatology AU - Rush, D AU - Andrews, J AU - Kristal, A AD - USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA 02111. Y1 - 1990/10// PY - 1990 DA - October 1990 SP - 319 EP - 326 VL - 7 IS - 4 SN - 0735-1631, 0735-1631 KW - Index Medicus KW - Regression Analysis KW - Age Factors KW - Social Class KW - Humans KW - Adult KW - Retrospective Studies KW - Wales -- epidemiology KW - Birth Weight -- drug effects KW - Female KW - Pregnancy KW - Fetus -- drug effects KW - Pregnancy Outcome -- epidemiology KW - Body Weight -- physiology KW - Smoking -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80064029?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+journal+of+perinatology&rft.atitle=Maternal+cigarette+smoking+during+pregnancy%2C+adiposity%2C+social+class%2C+and+perinatal+outcome+in+Cardiff%2C+Wales%2C+1965-1977.&rft.au=Rush%2C+D%3BAndrews%2C+J%3BKristal%2C+A&rft.aulast=Rush&rft.aufirst=D&rft.date=1990-10-01&rft.volume=7&rft.issue=4&rft.spage=319&rft.isbn=&rft.btitle=&rft.title=American+journal+of+perinatology&rft.issn=07351631&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-12-04 N1 - Date created - 1990-12-04 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Premature bovine parturition induced by ponderosa pine: effects of pine needles, bark and branch tips. AN - 80017643; 2209013 AB - Three components of Ponderosa pine trees were administered via gavage to pregnant cows to determine their ability to induce premature parturition. When tips of branches, bark or needles were administered (2.7 kg/day) starting at 250 d of pregnancy, early parturition was induced in an average of 3.4, 5.0 and 9.1 d, respectively, compared to 31.8 d for water gavaged controls (P less than 0.01). Less pine material was required to induce parturition with tips and bark (9.4 and 11.2 kg/cow, respectively) than with needles (25.0 kg/cow P less than 0.05). Cows fed pine material retained fetal membranes longer after parturition; 13.0 d for needles, 10.5 d for bark and greater than 3.0 d for tips versus less than 0.5 d for controls (P less than 0.01). However, 2 of the cows fed tips died within 48 hours after parturition with fetal membranes intact and the other 2 cows fed tips became depressed, pyrexic and emaciated. They survived after extended veterinary care with antibiotic and fluid therapy. Administration of pine materials modified serum progesterone concentration profiles; there was significant elevation in progesterone 1-3 days after pine material was administered. Subsequently, pine material induced a premature decline in progesterone levels prior to parturition, which occurred more rapidly in cows fed bark and tips suggesting a dose response relationship. Pine material also modified serum cortisol concentration profiles; the main difference was a prolonged elevation in cows receiving tips. Branch tips and bark from Ponderosa pine are more potent in inducing parturition than needles. JF - The Cornell veterinarian AU - Panter, K E AU - James, L F AU - Molyneux, R J AU - Short, R E AU - Sisson, D V AD - USDA, Agriculture Research Service, Poisonous Plant Research Laboratory, Logan, Utah 84321. Y1 - 1990/10// PY - 1990 DA - October 1990 SP - 329 EP - 338 VL - 80 IS - 4 SN - 0010-8901, 0010-8901 KW - Progesterone KW - 4G7DS2Q64Y KW - Hydrocortisone KW - WI4X0X7BPJ KW - Index Medicus KW - Animals KW - Cattle KW - Progesterone -- blood KW - Hydrocortisone -- blood KW - Female KW - Pregnancy KW - Obstetric Labor, Premature -- etiology KW - Trees KW - Obstetric Labor, Premature -- veterinary KW - Cattle Diseases -- etiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80017643?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Cornell+veterinarian&rft.atitle=Premature+bovine+parturition+induced+by+ponderosa+pine%3A+effects+of+pine+needles%2C+bark+and+branch+tips.&rft.au=Panter%2C+K+E%3BJames%2C+L+F%3BMolyneux%2C+R+J%3BShort%2C+R+E%3BSisson%2C+D+V&rft.aulast=Panter&rft.aufirst=K&rft.date=1990-10-01&rft.volume=80&rft.issue=4&rft.spage=329&rft.isbn=&rft.btitle=&rft.title=The+Cornell+veterinarian&rft.issn=00108901&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-11-20 N1 - Date created - 1990-11-20 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - A review of entic Spodosols in Vermont AN - 50477281; 1992-020660 JF - Proceedings - International Soil Correlation Meeting (ISCOM) AU - Villars, Thomas R A2 - Kimble, J. M. A2 - Nettleton, W. D. Y1 - 1990/10// PY - 1990 DA - October 1990 SP - 381 EP - 385 PB - Soil Conservation Service, USDA, [Lincoln, NE] VL - 5 KW - United States KW - soils KW - soil group KW - morphology KW - classification KW - properties KW - Vermont KW - Spodosols KW - pedons KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50477281?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+-+International+Soil+Correlation+Meeting+%28ISCOM%29&rft.atitle=A+review+of+entic+Spodosols+in+Vermont&rft.au=Villars%2C+Thomas+R&rft.aulast=Villars&rft.aufirst=Thomas&rft.date=1990-10-01&rft.volume=5&rft.issue=&rft.spage=381&rft.isbn=&rft.btitle=&rft.title=Proceedings+-+International+Soil+Correlation+Meeting+%28ISCOM%29&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Fifth international soil correlation meeting (ISCOM); characterization, classification, and utilization of Spodosols N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1992-01-01 N1 - Number of references - 11 N1 - PubXState - NE] N1 - Document feature - 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - #03237 N1 - SubjectsTermNotLitGenreText - classification; morphology; pedons; properties; soil group; soils; Spodosols; United States; Vermont ER - TY - JOUR T1 - Role of water table in Spodosol formation AN - 50477214; 1992-020649 JF - Proceedings - International Soil Correlation Meeting (ISCOM) AU - Nichols, J D AU - Collins, Mary E AU - Hurt, G W A2 - Kimble, J. M. A2 - Nettleton, W. D. Y1 - 1990/10// PY - 1990 DA - October 1990 SP - 238 EP - 241 PB - Soil Conservation Service, USDA, [Lincoln, NE] VL - 5 KW - United States KW - soils KW - soil group KW - morphology KW - water table KW - pedogenesis KW - Aquods KW - classification KW - horizons KW - Spodosols KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50477214?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+-+International+Soil+Correlation+Meeting+%28ISCOM%29&rft.atitle=Role+of+water+table+in+Spodosol+formation&rft.au=Nichols%2C+J+D%3BCollins%2C+Mary+E%3BHurt%2C+G+W&rft.aulast=Nichols&rft.aufirst=J&rft.date=1990-10-01&rft.volume=5&rft.issue=&rft.spage=238&rft.isbn=&rft.btitle=&rft.title=Proceedings+-+International+Soil+Correlation+Meeting+%28ISCOM%29&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Fifth international soil correlation meeting (ISCOM); characterization, classification, and utilization of Spodosols N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1992-01-01 N1 - Number of references - 17 N1 - PubXState - NE] N1 - Last updated - 2012-06-07 N1 - CODEN - #03237 N1 - SubjectsTermNotLitGenreText - Aquods; classification; horizons; morphology; pedogenesis; soil group; soils; Spodosols; United States; water table ER - TY - JOUR T1 - Consequences of agricultural management on classification of Spodosols in northeastern Maine AN - 50476073; 1992-020644 JF - Proceedings - International Soil Correlation Meeting (ISCOM) AU - LaFlamme, K J AU - Rourke, R V A2 - Kimble, J. M. A2 - Nettleton, W. D. Y1 - 1990/10// PY - 1990 DA - October 1990 SP - 192 EP - 199 PB - Soil Conservation Service, USDA, [Lincoln, NE] VL - 5 KW - United States KW - soils KW - soil group KW - northeastern Maine KW - classification KW - agriculture KW - Maine KW - management KW - Spodosols KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50476073?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+-+International+Soil+Correlation+Meeting+%28ISCOM%29&rft.atitle=Consequences+of+agricultural+management+on+classification+of+Spodosols+in+northeastern+Maine&rft.au=LaFlamme%2C+K+J%3BRourke%2C+R+V&rft.aulast=LaFlamme&rft.aufirst=K&rft.date=1990-10-01&rft.volume=5&rft.issue=&rft.spage=192&rft.isbn=&rft.btitle=&rft.title=Proceedings+-+International+Soil+Correlation+Meeting+%28ISCOM%29&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Fifth international soil correlation meeting (ISCOM); characterization, classification, and utilization of Spodosols N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1992-01-01 N1 - Number of references - 14 N1 - PubXState - NE] N1 - Document feature - 10 tables N1 - Last updated - 2012-06-07 N1 - CODEN - #03237 N1 - SubjectsTermNotLitGenreText - agriculture; classification; Maine; management; northeastern Maine; soil group; soils; Spodosols; United States ER - TY - JOUR T1 - Physical properties of spodic horizons AN - 50473368; 1992-020650 JF - Proceedings - International Soil Correlation Meeting (ISCOM) AU - Paetzold, R F A2 - Kimble, J. M. A2 - Nettleton, W. D. Y1 - 1990/10// PY - 1990 DA - October 1990 SP - 242 EP - 251 PB - Soil Conservation Service, USDA, [Lincoln, NE] VL - 5 KW - United States KW - soils KW - soil group KW - physical properties KW - Aquods KW - Orthods KW - Humods KW - properties KW - horizons KW - Spodosols KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50473368?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+-+International+Soil+Correlation+Meeting+%28ISCOM%29&rft.atitle=Physical+properties+of+spodic+horizons&rft.au=Paetzold%2C+R+F&rft.aulast=Paetzold&rft.aufirst=R&rft.date=1990-10-01&rft.volume=5&rft.issue=&rft.spage=242&rft.isbn=&rft.btitle=&rft.title=Proceedings+-+International+Soil+Correlation+Meeting+%28ISCOM%29&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Fifth international soil correlation meeting (ISCOM); characterization, classification, and utilization of Spodosols N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1992-01-01 N1 - Number of references - 7 N1 - PubXState - NE] N1 - Document feature - illus. incl. 9 tables N1 - Last updated - 2012-06-07 N1 - CODEN - #03237 N1 - SubjectsTermNotLitGenreText - Aquods; horizons; Humods; Orthods; physical properties; properties; soil group; soils; Spodosols; United States ER - TY - JOUR T1 - A novel metabolic form of the 32 kDa-D1 protein in the grana-localized reaction center of photosystem II. AN - 79980091; 2203777 AB - Two forms of the 32 kDa-D1 reaction center protein of photosystem II (PSII), having slightly different mobilities on denaturing polyacrylamide gels, have been resolved in Spirodela oligorrhiza, Glycine max L., Gossypium hirsutum L., Triticum aestivum L., and Zea mays L. The protein band with faster mobility is identified as the 32 kDa-D1 protein, and the less mobile band as a novel form, designated 32*. The two forms are structurally similar based on immunological and partial proteolytic tests. 32* is associated exclusively with the grana and is present in the PSII reaction center. Temporally, 32* appears several hours after the translocation of newly synthesized and processed 32 kDa-D1 protein from the stroma lamellae to the grana. Formation of the 32* is strictly light-dependent under physiological light intensities and correlates with a reciprocal loss of the 32-kDa form. Light induced formation of 32* is inhibited by 3-(3,4-dichlorophenyl)-1,1-dimethylurea but is not coupled to linear electron transport. JF - The Journal of biological chemistry AU - Callahan, F E AU - Ghirardi, M L AU - Sopory, S K AU - Mehta, A M AU - Edelman, M AU - Mattoo, A K AD - Plant Molecular Biology Laboratory, United States Department of Agriculture-ARS, Beltsville Agricultural Research Center (West), Maryland 20705. Y1 - 1990/09/15/ PY - 1990 DA - 1990 Sep 15 SP - 15357 EP - 15360 VL - 265 IS - 26 SN - 0021-9258, 0021-9258 KW - Dinitrophenols KW - 0 KW - Herbicides KW - Light-Harvesting Protein Complexes KW - Peptide Fragments KW - Photosynthetic Reaction Center Complex Proteins KW - Photosystem II Protein Complex KW - Plant Proteins KW - Chlorophyll KW - 1406-65-1 KW - Diuron KW - 9I3SDS92WY KW - 2,4-Dinitrophenol KW - Q13SKS21MN KW - dinoseb KW - YD44ZEM22M KW - Index Medicus KW - Darkness KW - Herbicides -- pharmacology KW - Electron Transport KW - Diuron -- pharmacology KW - Kinetics KW - Peptide Fragments -- isolation & purification KW - Dinitrophenols -- pharmacology KW - Light KW - Molecular Weight KW - Plant Proteins -- biosynthesis KW - 2,4-Dinitrophenol -- analogs & derivatives KW - Plants -- metabolism KW - Plant Proteins -- isolation & purification KW - Chlorophyll -- biosynthesis KW - Cytoplasmic Granules -- metabolism KW - Chlorophyll -- isolation & purification UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79980091?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Journal+of+biological+chemistry&rft.atitle=A+novel+metabolic+form+of+the+32+kDa-D1+protein+in+the+grana-localized+reaction+center+of+photosystem+II.&rft.au=Callahan%2C+F+E%3BGhirardi%2C+M+L%3BSopory%2C+S+K%3BMehta%2C+A+M%3BEdelman%2C+M%3BMattoo%2C+A+K&rft.aulast=Callahan&rft.aufirst=F&rft.date=1990-09-15&rft.volume=265&rft.issue=26&rft.spage=15357&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+biological+chemistry&rft.issn=00219258&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-10-11 N1 - Date created - 1990-10-11 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Influence of dietary fat on fecal mutagenicity in premenopausal women. AN - 79977210; 2394504 AB - A dietary intervention study was conducted on 31 premenopausal women (age: 20-40 years) to investigate the relationship between dietary fat and fecal mutagenicity. After a free-living period (baseline) of one menstrual cycle, the subjects were placed on a high-fat diet (40% calories from fat) for 4 menstrual cycles, followed by a low-fat diet (20% calories from fat) for 4 menstrual cycles. One-half of the subjects were randomly assigned throughout the study to a diet with a P:S ratio of 1.0 while the other half was assigned to one with a P:S ratio of 0.3; body weight by group remained constant. Three-day stool samples were collected at the mid-follicular period during the free-living phase and during the 4th menstrual cycle of each of the 2 controlled diet periods. Mutagenicity was assayed by the SOS chromotest. Reduction of dietary fat was accompanied by a significant decrease in fecal mutagenicity in both P:S groups. Combined values, i.e., both P:S groups, were 20.3 units for high-fat diets vs. 8.78 for low-fat diets. JF - International journal of cancer AU - Nair, P P AU - Shami, S AU - Sainz, E AU - Menon, M AU - Jerabek, L B AU - Jones, D Y AU - Judd, J T AU - Campbell, W S AU - Schiffman, M H AU - Taylor, P R AD - Lipid Nutrition Laboratory, Beltsville Human Nutrition Research Center, ARS, USDA, MD 20705. Y1 - 1990/09/15/ PY - 1990 DA - 1990 Sep 15 SP - 374 EP - 377 VL - 46 IS - 3 SN - 0020-7136, 0020-7136 KW - Dietary Fats KW - 0 KW - Index Medicus KW - Mutagenicity Tests KW - SOS Response (Genetics) KW - Random Allocation KW - Humans KW - Adult KW - Energy Intake KW - Female KW - Feces -- analysis KW - Dietary Fats -- metabolism KW - Diet UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79977210?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+journal+of+cancer&rft.atitle=Influence+of+dietary+fat+on+fecal+mutagenicity+in+premenopausal+women.&rft.au=Nair%2C+P+P%3BShami%2C+S%3BSainz%2C+E%3BMenon%2C+M%3BJerabek%2C+L+B%3BJones%2C+D+Y%3BJudd%2C+J+T%3BCampbell%2C+W+S%3BSchiffman%2C+M+H%3BTaylor%2C+P+R&rft.aulast=Nair&rft.aufirst=P&rft.date=1990-09-15&rft.volume=46&rft.issue=3&rft.spage=374&rft.isbn=&rft.btitle=&rft.title=International+journal+of+cancer&rft.issn=00207136&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-10-09 N1 - Date created - 1990-10-09 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - The food safety of transgenic animals. AN - 80223126; 1366792 JF - Bio/technology (Nature Publishing Company) AU - Berkowitz, D B AD - Food Safety and Inspection Service, U.S. Department of Agriculture, Washington, DC 20250. Y1 - 1990/09// PY - 1990 DA - September 1990 SP - 819 EP - 825 VL - 8 IS - 9 SN - 0733-222X, 0733-222X KW - Biotechnology KW - Animals KW - Consumer Product Safety KW - Food Contamination KW - Animals, Genetically Modified -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80223126?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bio%2Ftechnology+%28Nature+Publishing+Company%29&rft.atitle=The+food+safety+of+transgenic+animals.&rft.au=Berkowitz%2C+D+B&rft.aulast=Berkowitz&rft.aufirst=D&rft.date=1990-09-01&rft.volume=8&rft.issue=9&rft.spage=819&rft.isbn=&rft.btitle=&rft.title=Bio%2Ftechnology+%28Nature+Publishing+Company%29&rft.issn=0733222X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-03-05 N1 - Date created - 1991-03-05 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Characterization of Listeria monocytogenes isolates by Southern blot hybridization. AN - 80179687; 1979702 AB - A synthetic deoxyribonucleotide probe for virulent Listeria monocytogenes, designated ADO7, was evaluated for its ability to identify restriction fragments of L. monocytogenes with nucleic acid sequences homologous with the beta-hemolysin gene by Southern blot hybridization of clinical and food isolates. The synthetic probe hybridized with three restriction fragments (approximately 1.1, 0.86, and 0.76 kb) of the serotype 1/2A isolates. Southern blot hybridization of the serogroup 4B isolates indicated that the nucleic acid sequences homologous with the beta-hemolysin gene probe were limited to a single restriction fragment of approximately 1 kb. JF - Veterinary microbiology AU - Wesley, I V AU - Wesley, R D AU - Heisick, J AU - Harrell, F AU - Wagner, D AD - Physiopathology Research Unit, USDA-Agricultural Research Service, Ames, IA. Y1 - 1990/09// PY - 1990 DA - September 1990 SP - 341 EP - 353 VL - 24 IS - 3-4 SN - 0378-1135, 0378-1135 KW - DNA Probes KW - 0 KW - DNA, Bacterial KW - Hemolysin Proteins KW - Index Medicus KW - Listeriosis -- epidemiology KW - Animals KW - Sequence Homology, Nucleic Acid KW - Blotting, Southern KW - Humans KW - Restriction Mapping KW - Hemolysin Proteins -- genetics KW - Nucleic Acid Hybridization KW - Disease Outbreaks KW - Listeriosis -- microbiology KW - Listeria monocytogenes -- genetics KW - Food Microbiology KW - Polymorphism, Restriction Fragment Length KW - DNA, Bacterial -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80179687?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Veterinary+microbiology&rft.atitle=Characterization+of+Listeria+monocytogenes+isolates+by+Southern+blot+hybridization.&rft.au=Wesley%2C+I+V%3BWesley%2C+R+D%3BHeisick%2C+J%3BHarrell%2C+F%3BWagner%2C+D&rft.aulast=Wesley&rft.aufirst=I&rft.date=1990-09-01&rft.volume=24&rft.issue=3-4&rft.spage=341&rft.isbn=&rft.btitle=&rft.title=Veterinary+microbiology&rft.issn=03781135&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-01-31 N1 - Date created - 1991-01-31 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Evaluation of Alternative Land Management and Cropping Practices for Soil Conservation AN - 19132509; 9202005 AB - A model was developed to allow land planners and managers to assess erosion under alternative management practices. It is based on the universal soil loss equation but uses subfactors for crop cover and management. Readily available agronomic data and field expert opinion were used in formulating the method. Locally-derived data were used to validate the model which was then applied to agricultural systems in New South Wales, ranking the relative erosion hazard associated with crop and land management practices. The approach has a number of advantages: (1) it is computer-based and interactive, meaning that users need not undertake any calculations manually and can easily change the inputs to the program; (2) it provides a means of introducing the concepts of soil loss prediction directly into the planning process; and (3) the model not only allows quantification of soil loss but also provides a framework that is readily understood by farmers and other land managers. (White-Reimer-PTT) JF - Soil Use and Management SUMAEU, Vol. 6, No. 3, p 120-124, September 1990. 2 fig,2 tab, 15 ref. AU - Edwards, K AU - Rosewell, C J AD - Soil Conservation Service of New South Wales, c/o CSIRO Division of Water Resources, GPO Box 1666, Canberra 2601, ACT, Australia Y1 - 1990/09// PY - 1990 DA - Sep 1990 KW - Water Resources Abstracts KW - *Agricultural practices KW - *Erosion control KW - *Land management KW - *Model studies KW - *Soil conservation KW - Alternative planning KW - Australia KW - Computer models KW - Crop production KW - New South Wales KW - Universal soil loss equation KW - SW 5080:Evaluation, processing and publication KW - SW 2080:Watershed protection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19132509?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Evaluation+of+Alternative+Land+Management+and+Cropping+Practices+for+Soil+Conservation&rft.au=Edwards%2C+K%3BRosewell%2C+C+J&rft.aulast=Edwards&rft.aufirst=K&rft.date=1990-09-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Properties of the maize transposable element Activator in transgenic tobacco plants: a versatile inter-species genetic tool. AN - 80413284; 1967055 AB - The maize controlling element Activator (Ac) transposes autonomously from an integrated T-DNA vector to new sites in the genomes of tobacco and other heterologous plant species. Here we demonstrate that critical functions required for transposition of Ac in maize are conserved in tobacco and that Ac transposes at high frequency for at least five generations. Ac structure and terminal sequences are conserved upon transposition and a characteristic 8-bp duplication of target sequences is generated upon integration. Ac remains unmethylated, transcriptionally active, and capable to trans-activate transposition of the nonautonomous Dissociation (Ds) element throughout several generations. In tobacco, as in maize, Ac transposes adjacent to low copy or unique DNA, and transcriptional analysis of unique target DNA provides evidence that an Ac element transposed into a gene. In maize, increasing copies of Ac delay the timing and reduce the frequency of early transposition of Ac and Ds. In tobacco, increasing copies of Ac correlate with an increased frequency of Ds trans-activation. These data firmly establish that the Ac and Ds transposable elements are versatile genetic tools well suited for use as insertional mutagens and demonstrate that thorough investigation of mechanism and regulation of transposition is facilitated in heterologous settings. JF - The Plant cell AU - Hehl, R AU - Baker, B AD - Plant Gene Expression Center, United States Department of Agriculture, Albany, California 94710. Y1 - 1990/08// PY - 1990 DA - August 1990 SP - 709 EP - 721 VL - 2 IS - 8 SN - 1040-4651, 1040-4651 KW - Ac KW - DNA Transposable Elements KW - 0 KW - Index Medicus KW - Base Sequence KW - Plants, Genetically Modified KW - Blotting, Southern KW - Restriction Mapping KW - Recombination, Genetic KW - Molecular Sequence Data KW - Transcription, Genetic KW - Gene Expression Regulation KW - Methylation KW - Chromosome Mapping KW - Mutagenesis, Insertional KW - Plants, Toxic KW - Tobacco -- genetics KW - Zea mays -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80413284?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Plant+cell&rft.atitle=Properties+of+the+maize+transposable+element+Activator+in+transgenic+tobacco+plants%3A+a+versatile+inter-species+genetic+tool.&rft.au=Hehl%2C+R%3BBaker%2C+B&rft.aulast=Hehl&rft.aufirst=R&rft.date=1990-08-01&rft.volume=2&rft.issue=8&rft.spage=709&rft.isbn=&rft.btitle=&rft.title=The+Plant+cell&rft.issn=10404651&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-11-03 N1 - Date created - 1992-11-03 N1 - Date revised - 2017-01-13 N1 - Gene symbol - Ac N1 - SuppNotes - Cited By: Nature. 1974 Nov 15;252(5480):226-7 [4421263] Mol Gen Genet. 1987 Aug;209(1):193-7 [17186623] Anal Biochem. 1983 Jul 1;132(1):6-13 [6312838] J Mol Biol. 1983 Nov 15;170(4):827-42 [6315951] Gene. 1983 Dec;26(1):101-6 [6323249] Cell. 1984 Jun;37(2):635-43 [6327080] Anal Biochem. 1984 May 1;138(2):267-84 [6204550] Gene. 1985;33(1):103-19 [2985470] EMBO J. 1987 Feb;6(2):295-302 [3034583] Genetics. 1987 Sep;117(1):109-16 [2822530] Cell. 1989 Jan 27;56(2):181-91 [2536297] Proc Natl Acad Sci U S A. 1989 Apr;86(7):2219-23 [2538837] EMBO J. 1989 Apr;8(4):997-1004 [2545443] Mol Gen Genet. 1989 May;217(1):53-9 [2549368] Proc Natl Acad Sci U S A. 1989 Dec;86(23):9385-8 [2556710] Inf Dent. 1990 May 31;72(22):1985, 1987-8, 1993 passim [2202681] Plant Mol Biol. 1989 Jul;13(1):109-18 [2562778] Cold Spring Harb Symp Quant Biol. 1951;16:13-47 [14942727] Proc Natl Acad Sci U S A. 1950 Jun;36(6):344-55 [15430309] Cell. 1978 Dec;15(4):1397-410 [215325] N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Myopathy in cattle induced by alkaloid extracts from Thermopsis montanta, Laburnum anagyroides and a Lupinus sp. AN - 80132758; 2246392 AB - A purified alkaloid preparation containing N-methylcytisine, cytisine, 5,6-dehydrolupanine, thermopsine and anagyrine from Thermopsis montana induced prolonged recumbency and microscopic acute hyaline skeletal myodegeneration with myofibre regeneration in cattle similar in type and severity to that induced by Thermopsis montanta plant material. This indicates that the alkaloid(s) of Thermopsis montana are responsible for the myopathy caused by the plant. An alkaloid preparation containing mostly anagyrine from a Lupinus sp. and an alkaloid preparation containing only cytisine from Laburnum anagyroides each caused microscopic skeletal muscle degeneration and necrosis similar to, but less severe than, the alkaloid extract from T. montana, but without clinical recumbency. Dosage and severity of response suggest that neither of those two alkaloids alone can account for the effects induced by Thermopsis. The data suggest that quinolizidine alkaloids with a alpha-pyridone A-ring may be responsible for the lesions and that individual alpha-pyridones may have additive effects. JF - Journal of comparative pathology AU - Keeler, R F AU - Baker, D C AD - USDA, ARS, Poisonous Plant Research Laboratory, Logan, Utah 84321. Y1 - 1990/08// PY - 1990 DA - August 1990 SP - 169 EP - 182 VL - 103 IS - 2 SN - 0021-9975, 0021-9975 KW - Alkaloids KW - 0 KW - Plant Extracts KW - Index Medicus KW - Mass Spectrometry KW - Animals KW - Cattle KW - Blood Chemical Analysis KW - Chromatography, Gas KW - Cattle Diseases -- blood KW - Muscular Diseases -- chemically induced KW - Muscular Diseases -- blood KW - Cattle Diseases -- physiopathology KW - Cattle Diseases -- chemically induced KW - Muscular Diseases -- physiopathology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80132758?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+comparative+pathology&rft.atitle=Myopathy+in+cattle+induced+by+alkaloid+extracts+from+Thermopsis+montanta%2C+Laburnum+anagyroides+and+a+Lupinus+sp.&rft.au=Keeler%2C+R+F%3BBaker%2C+D+C&rft.aulast=Keeler&rft.aufirst=R&rft.date=1990-08-01&rft.volume=103&rft.issue=2&rft.spage=169&rft.isbn=&rft.btitle=&rft.title=Journal+of+comparative+pathology&rft.issn=00219975&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-01-09 N1 - Date created - 1991-01-09 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Toxicological evaluation of morning glory seed: subchronic 90-day feeding study. AN - 80124541; 2242829 AB - Diets containing 0.8, 2.53 and 8.0% field variety morning glory seed were fed to male and female rats (20 per group) in a 90-day subchronic feeding study. Gross clinical observations, body weight, and feed and water intake were recorded weekly. At 90 days, all surviving rats were autopsied, organs were weighed, and blood chemistry analyses, haematology, and bone-marrow evaluation for evidence of clastogenic effects were performed. Tissues from control (0% seed) and high-dose (8.0% seed) rats were examined histologically. Effects of morning glory seed were noted mainly in the high-dose group of both sexes. These included increases in mortality, feed consumption (on a body-weight basis), water consumption, serum alkaline phosphatase and potassium, white blood cell count, and brain and liver weights (as a percentage of body weight); body-weight gain and serum glucose were decreased. Significant changes seen in high-dose females alone were: increased haemoglobin, serum constituents (urea nitrogen, glutamic-pyruvic transaminase, glutamic-oxaloacetic transaminase, and ornithine carbamyl transferase), and organ weights (heart, kidney, spleen and pancreas as a percentage of body weight), and decreases in serum albumin, total protein, albumin:globulin ratio, and calcium. Significant changes occurring in high-dose males alone were: increased testicular weight (as a percentage of body weight), increased serum phosphorus, and decreased serum cholesterol. Liver degeneration in the high-dose females was greater than that in the controls. Mortality at 8.0% seed in the diet was 40% in males and 10% in females. At 0.8% seed, the only parameter that differed significantly from that of the controls was a final body-weight reduction in females without a corresponding reduction in feed consumption. JF - Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association AU - Dugan, G M AU - Gumbmann, M R AD - Western Regional Research Center, US Department of Agriculture, Albany, CA 94710. Y1 - 1990/08// PY - 1990 DA - August 1990 SP - 553 EP - 559 VL - 28 IS - 8 SN - 0278-6915, 0278-6915 KW - Alkaloids KW - 0 KW - Index Medicus KW - Rats, Inbred Strains KW - Rats KW - Administration, Oral KW - Animals KW - Sex Factors KW - Body Weight -- drug effects KW - Male KW - Female KW - Organ Size -- drug effects KW - Seeds KW - Plant Poisoning -- enzymology KW - Alkaloids -- toxicity KW - Plant Poisoning -- mortality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80124541?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Food+and+chemical+toxicology+%3A+an+international+journal+published+for+the+British+Industrial+Biological+Research+Association&rft.atitle=Toxicological+evaluation+of+morning+glory+seed%3A+subchronic+90-day+feeding+study.&rft.au=Dugan%2C+G+M%3BGumbmann%2C+M+R&rft.aulast=Dugan&rft.aufirst=G&rft.date=1990-08-01&rft.volume=28&rft.issue=8&rft.spage=553&rft.isbn=&rft.btitle=&rft.title=Food+and+chemical+toxicology+%3A+an+international+journal+published+for+the+British+Industrial+Biological+Research+Association&rft.issn=02786915&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-01-03 N1 - Date created - 1991-01-03 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Use of ivermectin to control the lesser mealworm (Coleoptera: Tenebrionidae) in a simulated poultry broiler house. AN - 80101759; 2235843 AB - Broiler chickens were fed ivermectin at a level of 2 ppm for 5 wk to determine its efficacy against the lesser mealworm, Alphitobius diaperinus. This treatment essentially eliminated lesser mealworm larvae; no ivermectin residues were found in the livers of the treated chickens, even without a withdrawal period. However, the feeding of ivermectin may reduce body weights body weight gain and feed efficiency at older ages. JF - Poultry science AU - Miller, R W AD - Livestock Insects Laboratory, LPSI, ARS, USDA, Beltsville, Maryland 20705. Y1 - 1990/08// PY - 1990 DA - August 1990 SP - 1281 EP - 1284 VL - 69 IS - 8 SN - 0032-5791, 0032-5791 KW - Ivermectin KW - 70288-86-7 KW - Index Medicus KW - Weight Gain -- drug effects KW - Animals KW - Age Factors KW - Housing, Animal KW - Body Weight -- drug effects KW - Time Factors KW - Liver -- chemistry KW - Male KW - Larva -- drug effects KW - Chickens -- parasitology KW - Ivermectin -- adverse effects KW - Ivermectin -- pharmacology KW - Ivermectin -- analysis KW - Ivermectin -- administration & dosage KW - Beetles -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80101759?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Poultry+science&rft.atitle=Use+of+ivermectin+to+control+the+lesser+mealworm+%28Coleoptera%3A+Tenebrionidae%29+in+a+simulated+poultry+broiler+house.&rft.au=Miller%2C+R+W&rft.aulast=Miller&rft.aufirst=R&rft.date=1990-08-01&rft.volume=69&rft.issue=8&rft.spage=1281&rft.isbn=&rft.btitle=&rft.title=Poultry+science&rft.issn=00325791&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-12-27 N1 - Date created - 1990-12-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Fate of malathion and chlorpyrifos methyl in rough rice and milling fractions before and after parboiling and cooking. AN - 80032587; 1698842 AB - Long-grain rough rice treated with malathion (14 ppm) or chlorpyrifos methyl (Reldan) (6 ppm or 12 ppm) was sampled after 1,6, and 12 wk. Samples from each treatment were processed raw or were parboiled with fresh steeping water, once-used, and twice-used steeping water. Three replicates of rough rice and of each milling fraction were preserved, and three of milled rice were cooked. Chemical residues were measured on rough rice, hulls, brown rice, bran, milled rice, and cooked rice. Parboiling reduced residues on rough rice and hulls but tended to increase residues in the other fractions. Residues of Reldan in bran were substantially increased by parboiling. Doubling the amount of Reldan applied to rough rice approximately doubled the residues found in the milling fractions. Small amounts of the protectants survived all processing including cooking. Residues of malathion in cooked rice averaged about 0.016 ppm in nonparboiled and 0.013 ppm in parboiled rice. Residue of Reldan in cooked rice was commensurate with the amount applied to rough rice. When applied to rough rice at 6 ppm, residues of Reldan in cooked rice averaged 0.05 ppm in nonparboiled rice and 0l.065 ppm in parboiled rice. When applied to rough rice at 12 ppm, residues in cooked rice averaged .053 ppm in nonparboiled rice and 0.15 ppm in parboiled rice. Legal tolerances were not exceeded in any milling fraction. Reuse of the steeping water had little or no effect on residues. JF - Journal of economic entomology AU - Cogburn, R R AU - Simonaitis, R A AU - Webb, B D AD - USDA-ARS, Beaumont, Tex. 77713. Y1 - 1990/08// PY - 1990 DA - August 1990 SP - 1636 EP - 1639 VL - 83 IS - 4 SN - 0022-0493, 0022-0493 KW - Pesticide Residues KW - 0 KW - Chlorpyrifos KW - JCS58I644W KW - Malathion KW - U5N7SU872W KW - Index Medicus KW - Hot Temperature KW - Oryza -- analysis KW - Chlorpyrifos -- analysis KW - Food Contamination -- prevention & control KW - Malathion -- analysis KW - Pesticide Residues -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80032587?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+economic+entomology&rft.atitle=Fate+of+malathion+and+chlorpyrifos+methyl+in+rough+rice+and+milling+fractions+before+and+after+parboiling+and+cooking.&rft.au=Cogburn%2C+R+R%3BSimonaitis%2C+R+A%3BWebb%2C+B+D&rft.aulast=Cogburn&rft.aufirst=R&rft.date=1990-08-01&rft.volume=83&rft.issue=4&rft.spage=1636&rft.isbn=&rft.btitle=&rft.title=Journal+of+economic+entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-11-20 N1 - Date created - 1990-11-20 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Effect of cis-diamminedichloroplatinum (II) on metallothionein induction and trace element metabolism in rats fed different amounts of dietary zinc. AN - 80420682; 15539228 AB - Recent studies have suggested that the induction of metallothionein synthesis in kidneys of mice by the acute administration of bismuth and other trace elements might protect against cis-diamminedichloroplatinum (II) nephrotoxicity. The present study was designed to determine the effects of dietary zinc and cis-diamminedichloroplatinum (II) on the induction of liver and kidney metallothionein and its subsequent effect on nephrotoxicity and trace element metabolism in rats. Male rats were fed diets containing 5, 20, 80, or 320 mg zinc/kg diet for 3 weeks. Each dietary group was subdivided into 3 groups. In one group, each rat received an i.p. injection of 7.5 mg cis-diamminedichloroplatinum (II)/kg b.w. All other rats received saline. During the next three days a second group of rats was pair-fed to the cis-diamminedichloroplatinum (II) injected group. A third group received no treatment and was allowed to eat ad libitum. Results showed that when dietary zinc was increased from 5 mg/kg diet to higher amounts, kidney metallothionein concentration increased twofold. cis-diamminedichloroplatinum (II) treatment increased kidney metallothionein even further, but elevated metallothionein gave no protection from the toxic effects of the drug. Serum copper concentration and ceruloplasmin activity were significantly lower with higher concentrations of dietary zinc, which indicated that these rats were mildly copper-deficient. There was a small but significant depression of superoxide dismutase activity and a highly significant increase in thiobarbituric acid reactive substances in kidneys of rats treated with cis-diamminedichloroplatinum (II) compared to either pair-fed or ad libitum controls. This supports the hypothesis that part of the mechanism for cis-diamminedichloroplatinum (II)-induced toxicity might be caused by free-radical generation. However, the data do not support the hypothesis that metallothionein induction protects the kidney from cis-diamminedichloroplatinum (II) toxicity. JF - The Journal of nutritional biochemistry AU - Reeves, P G AU - Saari, J T AD - United States Department of Agriculture, Agricultural Research Service, Grand Forks Human Nutrition Research Center, Grand Forks, ND 58202-7166, USA. Y1 - 1990/07// PY - 1990 DA - July 1990 SP - 374 EP - 381 VL - 1 IS - 7 SN - 0955-2863, 0955-2863 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80420682?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Journal+of+nutritional+biochemistry&rft.atitle=Effect+of+cis-diamminedichloroplatinum+%28II%29+on+metallothionein+induction+and+trace+element+metabolism+in+rats+fed+different+amounts+of+dietary+zinc.&rft.au=Reeves%2C+P+G%3BSaari%2C+J+T&rft.aulast=Reeves&rft.aufirst=P&rft.date=1990-07-01&rft.volume=1&rft.issue=7&rft.spage=374&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+nutritional+biochemistry&rft.issn=09552863&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-03-21 N1 - Date created - 2004-11-12 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Cutaneous ulceration and necrosis in pigs fed aflatoxin- and T-2 toxin-contaminated diets. AN - 80339877; 2094450 JF - Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc AU - Harvey, R B AU - Kubena, L F AU - Corrier, D E AU - Huff, W E AU - Rottinghaus, G E AD - USDA, Agricultural Research Service, Veterinary Toxicology and Entomology Research Laboratory, College Station 77840. Y1 - 1990/07// PY - 1990 DA - July 1990 SP - 227 EP - 229 VL - 2 IS - 3 SN - 1040-6387, 1040-6387 KW - Aflatoxins KW - 0 KW - T-2 Toxin KW - I3FL5NM3MO KW - Index Medicus KW - Swine KW - Animals KW - Necrosis KW - Drug Interactions KW - Lip KW - Zea mays KW - Oryza KW - Nose KW - Mouth KW - Penis KW - Male KW - Soybeans KW - Skin Ulcer -- veterinary KW - Animal Feed -- toxicity KW - Skin Ulcer -- chemically induced KW - Swine Diseases -- chemically induced KW - Aflatoxins -- toxicity KW - Swine Diseases -- pathology KW - T-2 Toxin -- toxicity KW - Skin Ulcer -- pathology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80339877?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+veterinary+diagnostic+investigation+%3A+official+publication+of+the+American+Association+of+Veterinary+Laboratory+Diagnosticians%2C+Inc&rft.atitle=Cutaneous+ulceration+and+necrosis+in+pigs+fed+aflatoxin-+and+T-2+toxin-contaminated+diets.&rft.au=Harvey%2C+R+B%3BKubena%2C+L+F%3BCorrier%2C+D+E%3BHuff%2C+W+E%3BRottinghaus%2C+G+E&rft.aulast=Harvey&rft.aufirst=R&rft.date=1990-07-01&rft.volume=2&rft.issue=3&rft.spage=227&rft.isbn=&rft.btitle=&rft.title=Journal+of+veterinary+diagnostic+investigation+%3A+official+publication+of+the+American+Association+of+Veterinary+Laboratory+Diagnosticians%2C+Inc&rft.issn=10406387&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-07-02 N1 - Date created - 1991-07-02 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Efficacy of a hydrated sodium calcium aluminosilicate to reduce the toxicity of aflatoxin and T-2 toxin. AN - 80104296; 2235827 AB - A hydrated sodium calcium aluminosilicate (HSCAS) was incorporated into diets (.5%) containing 3.5 mg of aflatoxin (AF) per kg and 8.0 mg of T-2 toxin (T-2) per kg, singly, and in combination. Male broiler chicks (n = 480) were provided with feed and water for ad libitum consumption from 1 to 21 days of age. Body weight gains were significantly depressed by AF and T-2, singly, and further decreased by the combination of the two toxins. Efficiency of feed utilization was not affected. The AF alone and the AF plus T-2 combination caused increases in relative liver, kidney, proventriculus, gizzard, spleen, and pancreas weights. Treatment-related changes in hematological and serum biochemical values and enzyme activities were observed. Oral lesions were observed only in chicks receiving the T-2 diets. The HSCAS fed singly did not alter any of the parameters measured but it did diminish the toxicity of AF for many parameters but did not appear to alter the toxicity of T-2. Addition of HSCAS to the AF plus T-2 combination diet diminished some of the effects of the toxin combination. These findings indicate that HSCAS can diminish many of the adverse effects of dietary AF in the chicken, but it has no effect on T-2 toxicity. JF - Poultry science AU - Kubena, L F AU - Harvey, R B AU - Huff, W E AU - Corrier, D E AU - Phillips, T D AU - Rottinghaus, G E AD - USDA/ARS-Veterinary Toxicology and Entomology Research Laboratory, College Station, Texas 77840. Y1 - 1990/07// PY - 1990 DA - July 1990 SP - 1078 EP - 1086 VL - 69 IS - 7 SN - 0032-5791, 0032-5791 KW - Aflatoxins KW - 0 KW - Aluminum Silicates KW - T-2 Toxin KW - I3FL5NM3MO KW - Index Medicus KW - Animals KW - Animal Feed KW - Weight Gain KW - Organ Size KW - Male KW - Poultry Diseases -- prevention & control KW - Chickens KW - Aluminum Silicates -- pharmacology KW - Poultry Diseases -- chemically induced KW - Aflatoxins -- antagonists & inhibitors KW - T-2 Toxin -- antagonists & inhibitors UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80104296?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Poultry+science&rft.atitle=Efficacy+of+a+hydrated+sodium+calcium+aluminosilicate+to+reduce+the+toxicity+of+aflatoxin+and+T-2+toxin.&rft.au=Kubena%2C+L+F%3BHarvey%2C+R+B%3BHuff%2C+W+E%3BCorrier%2C+D+E%3BPhillips%2C+T+D%3BRottinghaus%2C+G+E&rft.aulast=Kubena&rft.aufirst=L&rft.date=1990-07-01&rft.volume=69&rft.issue=7&rft.spage=1078&rft.isbn=&rft.btitle=&rft.title=Poultry+science&rft.issn=00325791&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-12-05 N1 - Date created - 1990-12-05 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Effects of florfenicol, chloramphenicol, and thiamphenicol on phagocytosis, chemiluminescence, and morphology of bovine polymorphonuclear neutrophil leukocytes. AN - 80084068; 2229585 AB - Florfenicol, chloramphenicol, and thiamphenicol were tested in vitro to determine their potential toxic effects on bovine neutrophils. Antibiotics were tested at 4000, 2000, and 10 micrograms/ml of incubation mixture. Percentage phagocytosis was determined by incubations with neutrophils isolated from milk of five cows and 32P-labeled Staphylococcus aureus and 5% skim milk. The effect of 4000 micrograms of each antibiotic on chemiluminescence was determined on neutrophils isolated from mammary secretions of three nulliparous heifers. Morphological evaluation by transmission and scanning electron microscopy was performed on neutrophils isolated from two heifers at antibiotic concentrations of 4000 and 10 micrograms/ml. Chloramphenicol depressed phagocytosis at the high and medium doses and blocked chemiluminescence activity at the high dose. No effects were observed for florfenicol and thiamphenicol. Transmission electron microscopic examination showed that at the high concentration of drugs, 99, 99, 97, and 76% of the neutrophils treated with florfenicol, chloramphenicol, thiamphenicol, and dimethyl sulfoxide were abnormal. Examination by scanning electron microscopy showed that the percentage of neutrophils without pseudopodia averaged 67, 94, 32, and 16%, respectively. Results indicated that neither florfenicol nor thiamphenicol altered neutrophil function, but they did alter neutrophil morphology, although to a lesser extent than did chloramphenicol. JF - Journal of dairy science AU - Paape, M J AU - Miller, R H AU - Ziv, G AD - Milk Secretion and Mastitis, Laboratory USDA, ARS, Beltsville, MD 20705. Y1 - 1990/07// PY - 1990 DA - July 1990 SP - 1734 EP - 1744 VL - 73 IS - 7 SN - 0022-0302, 0022-0302 KW - Anti-Bacterial Agents KW - 0 KW - Chloramphenicol KW - 66974FR9Q1 KW - florfenicol KW - 9J97307Y1H KW - Thiamphenicol KW - FLQ7571NPM KW - Index Medicus KW - Molecular Structure KW - Animals KW - Mammary Glands, Animal -- cytology KW - Luminescent Measurements KW - Cells, Cultured KW - Anti-Bacterial Agents -- chemistry KW - Anti-Bacterial Agents -- pharmacology KW - Microscopy, Electron KW - Phagocytosis -- drug effects KW - Female KW - Microscopy, Electron, Scanning KW - Neutrophils -- drug effects KW - Chloramphenicol -- pharmacology KW - Thiamphenicol -- pharmacology KW - Neutrophils -- ultrastructure KW - Neutrophils -- immunology KW - Cattle -- immunology KW - Chloramphenicol -- chemistry KW - Thiamphenicol -- analogs & derivatives KW - Thiamphenicol -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80084068?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+dairy+science&rft.atitle=Effects+of+florfenicol%2C+chloramphenicol%2C+and+thiamphenicol+on+phagocytosis%2C+chemiluminescence%2C+and+morphology+of+bovine+polymorphonuclear+neutrophil+leukocytes.&rft.au=Paape%2C+M+J%3BMiller%2C+R+H%3BZiv%2C+G&rft.aulast=Paape&rft.aufirst=M&rft.date=1990-07-01&rft.volume=73&rft.issue=7&rft.spage=1734&rft.isbn=&rft.btitle=&rft.title=Journal+of+dairy+science&rft.issn=00220302&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-12-06 N1 - Date created - 1990-12-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Integration of enzyme-linked immunosorbent assay with conventional chromatographic procedures for quantitation of aflatoxin in individual cotton bolls, seeds, and seed sections. AN - 80031808; 2120181 AB - Integration of an enzyme-linked immunosorbent assay (ELISA) with conventional chromatographic methods proved the versatility of ELISA as a research tool and allowed for rapid assessment of aflaxtoxin in individual cottonseeds, parts of cottonseed, and composite samples of seeds taken from individual cotton bolls. Aqueous acetone was substituted for methanol in the extraction procedure prescribed by ELISA. The substitution allowed the use of a common extract for all analytical methods. An aliquot of the extract was used to screen samples by ELISA. Negative samples were identified, and toxin levels between 1 and 70 ng/g were quantitated by ELISA. Samples with toxin levels beyond the upper limit of detection by ELISA were then subjected to more time-consuming conventional cleanup prior to quantitation by liquid chromatography (LC) or thin-layer chromatography (TLC). Toxin levels detected by LC or TLC ranged from 100 to 845,000 ng/g sample. The screen by ELISA detected large numbers of toxin-negative cotton bolls or individual seeds in minimum analysis time. The combination of techniques verified the presence of seed with no toxin adjacent to toxin-containing seed in the same lock. Toxin-negative portions of individual seed with high toxin in another portion were identified for the first time. Integration of techniques provided needed information on distribution patterns of aflatoxin in cotton so that preventive measures can be developed. JF - Journal - Association of Official Analytical Chemists AU - Lee, L S AU - Wall, J H AU - Cotty, P J AU - Bayman, P AD - U.S. Department of Agriculture, Southern Regional Research Center, New Orleans, LA 70179. PY - 1990 SP - 581 EP - 584 VL - 73 IS - 4 SN - 0004-5756, 0004-5756 KW - Aflatoxins KW - 0 KW - Cottonseed Oil KW - Indicators and Reagents KW - Aflatoxin B1 KW - 9N2N2Y55MH KW - Index Medicus KW - Spectrometry, Fluorescence KW - Aspergillus flavus -- analysis KW - Chromatography, Liquid KW - Enzyme-Linked Immunosorbent Assay KW - Chromatography, Thin Layer KW - Cottonseed Oil -- analysis KW - Aflatoxins -- analysis KW - Gossypium -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80031808?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+-+Association+of+Official+Analytical+Chemists&rft.atitle=Integration+of+enzyme-linked+immunosorbent+assay+with+conventional+chromatographic+procedures+for+quantitation+of+aflatoxin+in+individual+cotton+bolls%2C+seeds%2C+and+seed+sections.&rft.au=Lee%2C+L+S%3BWall%2C+J+H%3BCotty%2C+P+J%3BBayman%2C+P&rft.aulast=Lee&rft.aufirst=L&rft.date=1990-07-01&rft.volume=73&rft.issue=4&rft.spage=581&rft.isbn=&rft.btitle=&rft.title=Journal+-+Association+of+Official+Analytical+Chemists&rft.issn=00045756&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-11-02 N1 - Date created - 1990-11-02 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Adverse influence of social facilitation and learning context in training cattle to avoid eating larkspur. AN - 79936450; 2166731 AB - Through conditioned food aversion learning, livestock can be trained to avoid eating harmful plants. The objectives of this study were to determine whether social facilitation will extinguish an aversion to larkspur (a poisonous plant on mountain rangelands) and to determine whether the aversion can be reinforced to withstand social facilitation in a group-feeding and field-grazing situation. Two groups of heifers offered fresh larkspur were simultaneously infused intraruminally with lithium chloride (LiCl) to create an association between the taste of larkspur and LiCl-induced gastrointestinal distress. A third control group was infused with water. Heifers from one averted group (extinction) were paired with nonaverted controls and offered larkspur. When the extinction group sampled larkspur, and LiCl was not infused, the aversion was extinguished rapidly. Heifers in the other averted group (reinforcement), being infused with LiCl whenever they sampled larkspur, abstained from eating larkspur in the group-feeding situation. Heifers were then taken to larkspur-infested rangeland. After the control heifers began eating larkspur, the averted heifers started to sample it and the aversion was extinguished in three of four heifers. However, the aversion was renewed when the heifers were returned to the pen- and group-feeding situation where the aversion was created. Reinforced aversion was overcome by social facilitation in an unfamiliar field-grazing environment. JF - Journal of animal science AU - Ralphs, M H AU - Olsen, J D AD - USDA/ARS Poisonous Plant Research Laboratory, Logan, UT 84321. Y1 - 1990/07// PY - 1990 DA - July 1990 SP - 1944 EP - 1952 VL - 68 IS - 7 SN - 0021-8812, 0021-8812 KW - Chlorides KW - 0 KW - Lithium KW - 9FN79X2M3F KW - Lithium Chloride KW - G4962QA067 KW - Index Medicus KW - Animals KW - Cattle KW - Chlorides -- adverse effects KW - Gastrointestinal Diseases -- chemically induced KW - Lithium -- adverse effects KW - Gastrointestinal Diseases -- veterinary KW - Female KW - Food Preferences KW - Aversive Therapy KW - Plant Poisoning -- veterinary KW - Social Facilitation KW - Plant Poisoning -- prevention & control KW - Cattle Diseases -- prevention & control KW - Cattle Diseases -- chemically induced UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79936450?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+animal+science&rft.atitle=Adverse+influence+of+social+facilitation+and+learning+context+in+training+cattle+to+avoid+eating+larkspur.&rft.au=Ralphs%2C+M+H%3BOlsen%2C+J+D&rft.aulast=Ralphs&rft.aufirst=M&rft.date=1990-07-01&rft.volume=68&rft.issue=7&rft.spage=1944&rft.isbn=&rft.btitle=&rft.title=Journal+of+animal+science&rft.issn=00218812&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-09-20 N1 - Date created - 1990-09-20 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Effects of Fusarium moniliforme and corn associated with equine leukoencephalomalacia on rat neurotransmitters and metabolites. AN - 79837908; 1972578 AB - Fusarium moniliforme (FM) is associated with equine leukoencephalomalacia (ELEM) and hepatotoxicities in horses and rats. The neurochemical effects of ELEM-associated corn naturally infected with FM and FM strain MRC 826 were studied in rats. Increases in brain 5-hydroxyindoleacetic acid (5-HIAA, major metabolite of serotonin, 5-HT) and 5-HIAA/5-HT ratios were observed in rats fed the ELEM-FM corn. These rats had reduced body weights (17%, P less than 0.01) and increased brain weight/body weight ratios (14%, P less than 0.01) as compared with controls that were fed commercial corn. Rats fed a rodent chow supplemented (16%, w/w) with corn cultures of FM (MRC 826) had brain 5-HT and 5-HIAA increased (11% and 60%, P less than 0.01, respectively). At 20% FM (MRC 826)-chow diet, the 5-HIAA levels were increased (18%, P less than 0.01). In both the 16% and 20% diets, brain 5-HIAA/5-HT ratios were increased (45%, P less than 0.01 and 10%, P less than 0.05), body weights reduced (30% and 18%, P less than 0.01) and brain weight/body weight ratios increased (40% and 16%, P less than 0.01), respectively. The incidences of microscopic liver lesions (particularly bile duct proliferations, hepatocellular hyperplasia, and focal necrosis) were consistent with rats fed the FM contaminated and FM-fortified diets. These results suggest a possible FM (ELEM-associated)-induced dysfunction in either 5-HT metabolism or 5-HIAA elimination in rat brains. JF - Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.) AU - Porter, J K AU - Voss, K A AU - Bacon, C W AU - Norred, W P AD - Richard B. Russell Agricultural Research Center, U.S. Department of Agriculture, Agriculture Research Service, Athens, Georgia 30613. Y1 - 1990/07// PY - 1990 DA - July 1990 SP - 265 EP - 269 VL - 194 IS - 3 SN - 0037-9727, 0037-9727 KW - Fumonisins KW - 0 KW - Mycotoxins KW - Neurotransmitter Agents KW - fumonisin B2 KW - 116355-84-1 KW - fumonisin B1 KW - 3ZZM97XZ32 KW - Index Medicus KW - Rats KW - Body Weight KW - Animals KW - Zea mays KW - Horse Diseases -- etiology KW - Brain Chemistry KW - Horses KW - Encephalomalacia -- etiology KW - Encephalomalacia -- veterinary KW - Mycotoxins -- analysis KW - Male KW - Fusarium -- physiology KW - Animal Feed KW - Neurotransmitter Agents -- metabolism KW - Food Microbiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79837908?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Society+for+Experimental+Biology+and+Medicine.+Society+for+Experimental+Biology+and+Medicine+%28New+York%2C+N.Y.%29&rft.atitle=Effects+of+Fusarium+moniliforme+and+corn+associated+with+equine+leukoencephalomalacia+on+rat+neurotransmitters+and+metabolites.&rft.au=Porter%2C+J+K%3BVoss%2C+K+A%3BBacon%2C+C+W%3BNorred%2C+W+P&rft.aulast=Porter&rft.aufirst=J&rft.date=1990-07-01&rft.volume=194&rft.issue=3&rft.spage=265&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Society+for+Experimental+Biology+and+Medicine.+Society+for+Experimental+Biology+and+Medicine+%28New+York%2C+N.Y.%29&rft.issn=00379727&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-07-20 N1 - Date created - 1990-07-20 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - A Chemical Method for Determining Endotoxins in Cotton Dust and Lint Without Extraction AN - 754891914; 13497483 AB - Endotoxins present on cotton and released during carding have been implicated as a cause of byssinosis, a lung dysfunction found in some textile mill workers. The endotoxin content of cotton lints and dusts is frequently determined by the Limulus amoebocyte lysate (LAL) test. Although this test is a very effective measure of endotoxin in drugs and parenteral solutions, it is subject to interferences and false positives from other components in a more complex matrix such as cotton dust. To obviate these problems, we are investigating the quantitation of endotoxins by determining the 3- hydroxymyristic acid content of the sample. This fatty acid is reported to be unique to the lipid A portion of lipopolysaccharides from gram-negative bacteria and has been reported as a marker for endotoxin by others. A major source of error in deter mining endotoxins in cotton lints and dusts appears to lie with the extraction procedures used to remove the endotoxin from the cellulosic matrix. This is true for both chemical and LAL assays. To eliminate this time-consuming and error-producing step, we are investigating the direct hydrolysis of the endotoxin while still on the cellulosic matrix. The amount of 3-hydroxymyristic acid is determined by HPLC of the phenacyl ester and related to endotoxin content using a calibration curve prepared from E. agglom erans, generally the predominant bacterial species on cotton fiber. Endotoxin values for direct hydrolysis are from 10 to 40 times greater than those obtained for aqueous or phenol-water extracts of the same lints or dusts, implying that endotoxin from both intact and lysed bacteria may be quantitated. Reproducibility is improved over that obtained for extracts of cotton lints and dusts. JF - Textile Research Journal AU - Morris, Nancy M AU - Catalano, Edwin A AD - USDA ARS, Southern Regional Research Center, New Orleans, Louisiana 70124, U.S.A Y1 - 1990/07// PY - 1990 DA - Jul 1990 SP - 421 EP - 426 PB - Sage Publications Ltd., 6 Bonhill St. London EC2A 4PU UK VL - 60 IS - 7 SN - 0040-5175, 0040-5175 KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - Endotoxins KW - High-performance liquid chromatography KW - Cotton KW - Byssinosis KW - Esters KW - Hydrolysis KW - Dust KW - Fibers KW - Workers KW - Limulus KW - Lung KW - Textiles KW - Gram-negative bacteria KW - Fatty acids KW - Lipopolysaccharides KW - Lipid A KW - Mining KW - Drugs KW - Quantitation KW - A 01380:Plant Protection, Fungicides & Seed Treatments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754891914?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Textile+Research+Journal&rft.atitle=A+Chemical+Method+for+Determining+Endotoxins+in+Cotton+Dust+and+Lint+Without+Extraction&rft.au=Morris%2C+Nancy+M%3BCatalano%2C+Edwin+A&rft.aulast=Morris&rft.aufirst=Nancy&rft.date=1990-07-01&rft.volume=60&rft.issue=7&rft.spage=421&rft.isbn=&rft.btitle=&rft.title=Textile+Research+Journal&rft.issn=00405175&rft_id=info:doi/10.1177%2F004051759006000708 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-09-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - High-performance liquid chromatography; Endotoxins; Cotton; Byssinosis; Esters; Hydrolysis; Dust; Workers; Fibers; Textiles; Lung; Gram-negative bacteria; Fatty acids; Lipopolysaccharides; Lipid A; Mining; Quantitation; Drugs; Limulus DO - http://dx.doi.org/10.1177/004051759006000708 ER - TY - JOUR T1 - Up-regulation of the intestinal 1,25-dihydroxyvitamin D receptor during hypervitaminosis D: a comparison between vitamin D2 and vitamin D3. AN - 79852797; 2163637 AB - Concentrations of intestinal 1,25-dihydroxyvitamin D receptor were measured in rats receiving pharmacological amounts (25,000 IU/rat daily for 6 days) of either vitamin D2 or vitamin D3. The data showed that both hypervitaminosis D2 and hypervitaminosis D3 resulted in significant up-regulation of intestinal 1,25-dihydroxyvitamin D receptor (fmol/mg protein) relative to controls (409 +/- 24, vitamin D2-treated; 525 +/- 41, vitamin D3-treated; and 249 +/- 19, control). The 1,25-dihydroxyvitamin D receptor enhancement also was accompanied by elevated plasma 25-hydroxyvitamin D and hypercalcemia. These data suggest that increased target-tissue 1,25-dihydroxyvitamin D receptor may play a role in enhancing target-tissue responsiveness and, thus, have a significant role in mediating the toxic effects of hypervitaminosis D. JF - Biochemical and biophysical research communications AU - Beckman, M J AU - Horst, R L AU - Reinhardt, T A AU - Beitz, D C AD - National Animal Disease Center, Agriculture Research Service, USDA, Ames, IA 50010. Y1 - 1990/06/29/ PY - 1990 DA - 1990 Jun 29 SP - 910 EP - 915 VL - 169 IS - 3 SN - 0006-291X, 0006-291X KW - Ergocalciferols KW - 0 KW - Receptors, Calcitriol KW - Receptors, Steroid KW - Calcitriol KW - FXC9231JVH KW - Calcium KW - SY7Q814VUP KW - Index Medicus KW - Rats KW - Body Weight KW - Animals KW - Calcium -- blood KW - Up-Regulation KW - Male KW - Ergocalciferols -- metabolism KW - Ergocalciferols -- blood KW - Receptors, Steroid -- metabolism KW - Calcitriol -- metabolism KW - Intestines -- metabolism KW - Calcitriol -- blood UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79852797?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemical+and+biophysical+research+communications&rft.atitle=Up-regulation+of+the+intestinal+1%2C25-dihydroxyvitamin+D+receptor+during+hypervitaminosis+D%3A+a+comparison+between+vitamin+D2+and+vitamin+D3.&rft.au=Beckman%2C+M+J%3BHorst%2C+R+L%3BReinhardt%2C+T+A%3BBeitz%2C+D+C&rft.aulast=Beckman&rft.aufirst=M&rft.date=1990-06-29&rft.volume=169&rft.issue=3&rft.spage=910&rft.isbn=&rft.btitle=&rft.title=Biochemical+and+biophysical+research+communications&rft.issn=0006291X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-08-06 N1 - Date created - 1990-08-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Influence of water table elevation on water quality AN - 50097184; 1996-001477 JF - International Summer Meeting - American Society of Agricultural Engineers AU - Fausey, N R AU - Ward, A D AU - Logan, T J AU - Tamburello, S AU - Doklovic, A AU - Anonymous Y1 - 1990/06// PY - 1990 DA - June 1990 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1990 KW - United States KW - water quality KW - water management KW - irrigation KW - ground water KW - nitrate ion KW - chemical composition KW - Ohio KW - soils KW - concentration KW - monitoring KW - pollutants KW - herbicides KW - agriculture KW - pollution KW - optimization KW - potentiometric surface KW - metolachlor KW - aquifers KW - water table KW - physical properties KW - organic compounds KW - infiltration KW - seasonal variations KW - hydraulic conductivity KW - pesticides KW - permeability KW - land use KW - Wooster Ohio KW - soil management KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50097184?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Summer+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Influence+of+water+table+elevation+on+water+quality&rft.au=Fausey%2C+N+R%3BWard%2C+A+D%3BLogan%2C+T+J%3BTamburello%2C+S%3BDoklovic%2C+A%3BAnonymous&rft.aulast=Fausey&rft.aufirst=N&rft.date=1990-06-01&rft.volume=1990&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Summer+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1990 international summer meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 37 N1 - PubXState - MI N1 - Document feature - illus. incl. 7 tables N1 - SuppNotes - Paper No. 90-2067 N1 - Last updated - 2012-06-07 N1 - CODEN - #03997 N1 - SubjectsTermNotLitGenreText - agriculture; aquifers; chemical composition; concentration; ground water; herbicides; hydraulic conductivity; infiltration; irrigation; land use; metolachlor; monitoring; nitrate ion; Ohio; optimization; organic compounds; permeability; pesticides; physical properties; pollutants; pollution; potentiometric surface; seasonal variations; soil management; soils; United States; water management; water quality; water table; Wooster Ohio ER - TY - JOUR T1 - Predicting soil erodibility from soil strength measurements AN - 50097127; 1996-001462 JF - International Summer Meeting - American Society of Agricultural Engineers AU - Elliot, W J AU - Laflen, J M AU - Olivieri, L J AU - Kohl, K D AU - Anonymous Y1 - 1990/06// PY - 1990 DA - June 1990 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1990 KW - soils KW - numerical models KW - erosion KW - strength KW - rills KW - Universal Soil Loss Equation KW - statistical analysis KW - prediction KW - mechanical properties KW - equations KW - models KW - physical properties KW - conservation KW - chemical properties KW - erodibility KW - regression analysis KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50097127?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Summer+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Predicting+soil+erodibility+from+soil+strength+measurements&rft.au=Elliot%2C+W+J%3BLaflen%2C+J+M%3BOlivieri%2C+L+J%3BKohl%2C+K+D%3BAnonymous&rft.aulast=Elliot&rft.aufirst=W&rft.date=1990-06-01&rft.volume=1990&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Summer+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1990 international summer meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 30 N1 - PubXState - MI N1 - Document feature - illus. incl. 11 tables N1 - SuppNotes - Paper no. 90-2009 N1 - Last updated - 2012-06-07 N1 - CODEN - #03997 N1 - SubjectsTermNotLitGenreText - chemical properties; conservation; equations; erodibility; erosion; mechanical properties; models; numerical models; physical properties; prediction; regression analysis; rills; soils; statistical analysis; strength; Universal Soil Loss Equation ER - TY - JOUR T1 - Variability of auger hole hydraulic conductivity values for a commerce silt loam AN - 50094409; 1996-001482 JF - International Summer Meeting - American Society of Agricultural Engineers AU - Rogers, J S AU - Selim, H M AU - Carter, C E AU - Fouss, J L AU - Anonymous Y1 - 1990/06// PY - 1990 DA - June 1990 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1990 KW - wells KW - soils KW - water quality KW - clastic sediments KW - water management KW - observation wells KW - silt KW - Ernst equation KW - variations KW - measurement KW - ground water KW - water table KW - spatial variations KW - physical properties KW - loam KW - sediments KW - hydraulic conductivity KW - auger holes KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50094409?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Summer+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Variability+of+auger+hole+hydraulic+conductivity+values+for+a+commerce+silt+loam&rft.au=Rogers%2C+J+S%3BSelim%2C+H+M%3BCarter%2C+C+E%3BFouss%2C+J+L%3BAnonymous&rft.aulast=Rogers&rft.aufirst=J&rft.date=1990-06-01&rft.volume=1990&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Summer+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1990 international summer meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 16 N1 - PubXState - MI N1 - Document feature - illus. incl. 5 tables N1 - SuppNotes - Paper No.90-2084 N1 - Last updated - 2012-06-07 N1 - CODEN - #03997 N1 - SubjectsTermNotLitGenreText - auger holes; clastic sediments; Ernst equation; ground water; hydraulic conductivity; loam; measurement; observation wells; physical properties; sediments; silt; soils; spatial variations; variations; water management; water quality; water table; wells ER - TY - JOUR T1 - Gully erosion research AN - 50089982; 1996-001463 JF - International Summer Meeting - American Society of Agricultural Engineers AU - Robinson, Kerry M AU - Anonymous Y1 - 1990/06// PY - 1990 DA - June 1990 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1990 KW - soils KW - bedload KW - soil mechanics KW - erosion KW - clastic sediments KW - stress KW - agriculture KW - erosion features KW - preventive measures KW - physical properties KW - transport KW - erosion control KW - dams KW - sediments KW - alluvium KW - soil erosion KW - gullies KW - land use KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50089982?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Summer+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Gully+erosion+research&rft.au=Robinson%2C+Kerry+M%3BAnonymous&rft.aulast=Robinson&rft.aufirst=Kerry&rft.date=1990-06-01&rft.volume=1990&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Summer+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1990 international summer meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 8 N1 - PubXState - MI N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Paper No. 90-2013 N1 - Last updated - 2012-06-07 N1 - CODEN - #03997 N1 - SubjectsTermNotLitGenreText - agriculture; alluvium; bedload; clastic sediments; dams; erosion; erosion control; erosion features; gullies; land use; physical properties; preventive measures; sediments; soil erosion; soil mechanics; soils; stress; transport ER - TY - JOUR T1 - Transport of sediment from soils of different textures AN - 50085655; 1996-001465 JF - International Summer Meeting - American Society of Agricultural Engineers AU - Line, D E AU - Mayer, L D AU - Anonymous Y1 - 1990/06// PY - 1990 DA - June 1990 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1990 KW - soils KW - hydrology KW - granulometry KW - experimental studies KW - stream transport KW - erosion KW - rills KW - rainfall KW - statistical analysis KW - rates KW - calibration KW - critical flow KW - equilibrium KW - models KW - saltation KW - physical properties KW - transport KW - runoff KW - sediments KW - soil erosion KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50085655?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Summer+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Transport+of+sediment+from+soils+of+different+textures&rft.au=Line%2C+D+E%3BMayer%2C+L+D%3BAnonymous&rft.aulast=Line&rft.aufirst=D&rft.date=1990-06-01&rft.volume=1990&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Summer+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1990 international summer meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 7 N1 - PubXState - MI N1 - Document feature - 3 tables N1 - SuppNotes - Paper No. 90-2015 N1 - Last updated - 2012-06-07 N1 - CODEN - #03997 N1 - SubjectsTermNotLitGenreText - calibration; critical flow; equilibrium; erosion; experimental studies; granulometry; hydrology; models; physical properties; rainfall; rates; rills; runoff; saltation; sediments; soil erosion; soils; statistical analysis; stream transport; transport ER - TY - JOUR T1 - Alteration of intracellular traffic by monensin; mechanism, specificity and relationship to toxicity. AN - 79775163; 2160275 AB - Monensin, a monovalent ion-selective ionophore, facilitates the transmembrane exchange of principally sodium ions for protons. The outer surface of the ionophore-ion complex is composed largely of nonpolar hydrocarbon, which imparts a high solubility to the complexes in nonpolar solvents. In biological systems, these complexes are freely soluble in the lipid components of membranes and, presumably, diffuse or shuttle through the membranes from one aqueous membrane interface to the other. The net effect for monensin is a trans-membrane exchange of sodium ions for protons. However, the interaction of an ionophore with biological membranes, and its ionophoric expression, is highly dependent on the biochemical configuration of the membrane itself. One apparent consequence of this exchange is the neutralization of acidic intracellular compartments such as the trans Golgi apparatus cisternae and associated elements, lysosomes, and certain endosomes. This is accompanied by a disruption of trans Golgi apparatus cisternae and of lysosome and acidic endosome function. At the same time, Golgi apparatus cisternae appear to swell, presumably due to osmotic uptake of water resulting from the inward movement of ions. Monensin effects on Golgi apparatus are observed in cells from a wide range of plant and animal species. The action of monensin is most often exerted on the trans half of the stacked cisternae, often near the point of exit of secretory vesicles at the trans face of the stacked cisternae, or, especially at low monensin concentrations or short exposure times, near the middle of the stacked cisternae. The effects of monensin are quite rapid in both animal and plant cells; i.e., changes in Golgi apparatus may be observed after only 2-5 min of exposure. It is implicit in these observations that the uptake of osmotically active cations is accompanied by a concomitant efflux of H+ and that a net influx of protons would be required to sustain the ionic exchange long enough to account for the swelling of cisternae observed in electron micrographs. In the Golgi apparatus, late processing events such as terminal glycosylation and proteolytic cleavages are most susceptible to inhibition by monensin. Yet, many incompletely processed molecules may still be secreted via yet poorly understood mechanisms that appear to bypass the Golgi apparatus. In endocytosis, monensin does not prevent internalization. However, intracellular degradation of internalized ligands may be prevented.(ABSTRACT TRUNCATED AT 400 WORDS) JF - Biochimica et biophysica acta AU - Mollenhauer, H H AU - Morré, D J AU - Rowe, L D AD - Veterinary Toxicology and Entomology Research Laboratory, United States Department of Agriculture, College Station, Texas 77840. Y1 - 1990/05/07/ PY - 1990 DA - 1990 May 07 SP - 225 EP - 246 VL - 1031 IS - 2 SN - 0006-3002, 0006-3002 KW - Protons KW - 0 KW - Monensin KW - 906O0YJ6ZP KW - Sodium KW - 9NEZ333N27 KW - Potassium KW - RWP5GA015D KW - Index Medicus KW - Exocytosis -- drug effects KW - Animals KW - Humans KW - Endocytosis -- drug effects KW - Potassium -- metabolism KW - Sodium -- metabolism KW - Monensin -- toxicity KW - Golgi Apparatus -- drug effects KW - Monensin -- pharmacology KW - Biological Transport -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79775163?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochimica+et+biophysica+acta&rft.atitle=Alteration+of+intracellular+traffic+by+monensin%3B+mechanism%2C+specificity+and+relationship+to+toxicity.&rft.au=Mollenhauer%2C+H+H%3BMorr%C3%A9%2C+D+J%3BRowe%2C+L+D&rft.aulast=Mollenhauer&rft.aufirst=H&rft.date=1990-05-07&rft.volume=1031&rft.issue=2&rft.spage=225&rft.isbn=&rft.btitle=&rft.title=Biochimica+et+biophysica+acta&rft.issn=00063002&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-06-26 N1 - Date created - 1990-06-26 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Diminution of aflatoxicosis in growing chickens by the dietary addition of a hydrated, sodium calcium aluminosilicate. AN - 79864575; 1973286 AB - The amelioration of aflatoxicosis in broiler and Leghorn chickens was examined by feeding a hydrated, sodium calcium aluminosilicate (HSCAS) or activated charcoal. In three experiments, HSCAS or activated charcoal at a concentration of .5% of the total diet were incorporated into diets for broiler and Leghorn chicks containing either no added, purified aflatoxin B1 (AFB1), 7.5 mg of AFB1 per kg, or 5 mg of aflatoxin (AF) per kg (produced by Aspergillus parasiticus on rice). Compared to the controls, the AFB1 reduced BW gains at 0 to 3 wk by 21 to 38% in broilers; and the AF reduced BW gains at 0 to 4 wk in Leghorns by 20 percent. The HSCAS significantly diminished the growth-inhibitory effects of AFB1 or of AF on growing chicks by 50 to 67 percent. Feeding 5 mg of AF per kg of diet with or without charcoal to Leghorn chicks caused a significant increase in the relative weights of the liver, kidney, proventriculus, and gizzard as well as significant increases in activity of serum gamma glutamyltransferase; also, significant decreases in the relative bursa weights as well as the concentrations of serum total protein and albumin. With the exception of the relative bursa weights, the toxic effects caused by aflatoxin were prevented or were reduced by adding hydrated, sodium calcium aluminosilicate. These data suggest that HSCAS can modulate the toxicity of AFB1 and AF in the chicken; however, adding activated charcoal to the diet did not appear to have protective properties against the effects of aflatoxin B1 or of aflatoxin. JF - Poultry science AU - Kubena, L F AU - Harvey, R B AU - Phillips, T D AU - Corrier, D E AU - Huff, W E AD - United States Department of Agriculture, College Station, Texas. Y1 - 1990/05// PY - 1990 DA - May 1990 SP - 727 EP - 735 VL - 69 IS - 5 SN - 0032-5791, 0032-5791 KW - Aflatoxins KW - 0 KW - Aluminum Silicates KW - Blood Proteins KW - Zeolites KW - 1318-02-1 KW - Charcoal KW - 16291-96-6 KW - Cholesterol KW - 97C5T2UQ7J KW - Aflatoxin B1 KW - 9N2N2Y55MH KW - gamma-Glutamyltransferase KW - EC 2.3.2.2 KW - Index Medicus KW - Cholesterol -- blood KW - Animals KW - Animal Feed KW - Charcoal -- therapeutic use KW - Food Contamination KW - gamma-Glutamyltransferase -- blood KW - Weight Gain KW - Male KW - Blood Proteins -- analysis KW - Aflatoxins -- poisoning KW - Poultry Diseases -- prevention & control KW - Chickens KW - Mycotoxicosis -- prevention & control KW - Mycotoxicosis -- etiology KW - Aluminum Silicates -- therapeutic use KW - Mycotoxicosis -- veterinary KW - Poultry Diseases -- chemically induced UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79864575?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Poultry+science&rft.atitle=Diminution+of+aflatoxicosis+in+growing+chickens+by+the+dietary+addition+of+a+hydrated%2C+sodium+calcium+aluminosilicate.&rft.au=Kubena%2C+L+F%3BHarvey%2C+R+B%3BPhillips%2C+T+D%3BCorrier%2C+D+E%3BHuff%2C+W+E&rft.aulast=Kubena&rft.aufirst=L&rft.date=1990-05-01&rft.volume=69&rft.issue=5&rft.spage=727&rft.isbn=&rft.btitle=&rft.title=Poultry+science&rft.issn=00325791&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-08-13 N1 - Date created - 1990-08-13 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Rates and Mechanisms of Discontinuous Gully Erosion in a Red-Brown Earth Catchment, New South Wales, Australia AN - 19114670; 9101877 AB - Rainfall, runoff, sediment discharge, and gully expansion were measured for five years in a small catchment in central New South Wales. Sixty percent of the sediment produced from this catchment originated from gully erosion. Gully head erosion was episodic depending on pipe development, cracking, and soil detachment during small runoff events which prepared the heads for rapid soil movement from infrequent large runoff events. On the average each year 5.5 tons of soil were released from the gully heads, 2.5 tons were deposited in the drainage line, and 6. 4 tons passed over the weir. In some years very little erosion occurred, in others a large quantity of soil was moved. In this environment erosion from both sources occurred during the same runoff events, particularly after there had been a considerable period of soil detachment with little or no runoff to cause soil movement. In other words, most soil movement occurred in the early stages of some very large runoff events. Soil was detached, both in the gullies and on the ground surface by a variety of mechanisms (soil shrinkage, stock trampling, short duration or low intensity rain) and was then flushed into and along the drainage by large runoff events. (Stoehr-PTT) JF - Earth Surface Processes and Landforms ESPLDB, Vol. 15, No. 3, p 277-282, May 1990. 5 fig, 2 tab, 3 ref. AU - Crouch, R J AD - Soil Conservation Service Y1 - 1990/05// PY - 1990 DA - May 1990 KW - Water Resources Abstracts KW - Australia Gully erosion Sediment discharge Sediment yield Soil KW - erosion Drainage systems New South Wales Rainfall Runoff KW - SW 0870:Erosion and sedimentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19114670?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Rates+and+Mechanisms+of+Discontinuous+Gully+Erosion+in+a+Red-Brown+Earth+Catchment%2C+New+South+Wales%2C+Australia&rft.au=Crouch%2C+R+J&rft.aulast=Crouch&rft.aufirst=R&rft.date=1990-05-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Stream Sediment Loading and Rainfall--A Look at the Issue AN - 19108573; 9102086 AB - Sediment loadings in a stream measured after an intense storm have frequently led to the conclusion that significant soil erosion is associated only with a few storms, or that they are solely a function of peak storm intensities. The issue of the nature of the relationship between stream loading and storm intensity and whether stream sediment loading can best be explained by storm intensity (rainfall) or whether a more general average rainfall measure is superior was examined. Based on data covering the years 1947 to 1985 for the Iowa River watershed north of Iowa City, a nonlinear relationship between stream sediment loading and rainfall is indicated. Moreover, average monthly rainfall better explains sediment loading than do other measures of storm (rainfall) intensity. Finally, when the structural stability of the estimated relationships between stream loading and storm intensity are estimated, the conclusion is that the relationship between stream loading and rainfall is stable over the sample period. (Author 's abstract) JF - Water, Air and Soil Pollution WAPLAC, Vol. 51, No. 1/2, p 95-104 , May 1990. 3 fig, 1 tab, 16 ref. AU - Hyberg, B AU - Uri, N D AD - Economic Research Service Y1 - 1990/05// PY - 1990 DA - May 1990 KW - Water Resources Abstracts KW - Erosion Rainfall intensity Sediment load Soil erosion Iowa River KW - Statistical analysis Storms Temporal distribution KW - SW 0870:Erosion and sedimentation KW - SW 0815:Precipitation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19108573?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Stream+Sediment+Loading+and+Rainfall--A+Look+at+the+Issue&rft.au=Hyberg%2C+B%3BUri%2C+N+D&rft.aulast=Hyberg&rft.aufirst=B&rft.date=1990-05-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Integrated Analysis of Policy Options for Protection of Groundwater Quality AN - 19104845; 9101101 AB - A regional authority should use an integrated framework when assessing the potential impacts of any policy initiative directed at improving groundwater quality. A policy model was therefore developed relying on three decision components (farm-level production decisions model, a household decisions model, and a regional policy decision model) where the objective is one of identifying the trade-offs that a regional authority will be confronted with as it strives to balance the preferences of farmers and households while endeavoring to maximize net economic welfare. The basic rule developed indicates that the regional authority must choose a policy whereby any increase (decrease) in regional income is just equal to the decrease (increase) in net benefits to households. The model developed does require a fair amount of information on the transport and fate of pesticides and fertilizers used in the agricultural production process, dose-response relationships for computing health risks and costs associated with excessive illnesses (and mortality), costs of remedial action options etc. (Author 's abstract) JF - Environmental Geology and Water Sciences EGWSEI, Vol. 15, No. 3, p 233-241, May/June 1990. 1 fig, 1 tab, 33 ref. AU - Huang, W Y AU - Uri, N D AD - Economic Research Service Y1 - 1990/05// PY - 1990 DA - May 1990 KW - Water Resources Abstracts KW - Groundwater quality Groundwater resources Model studies Policy KW - making Resource management Water pollution control Water quality KW - control Fertilizers Human diseases Pesticides Political aspects KW - Public participation KW - SW 3070:Water quality control KW - SW 4050:Water law and institutions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19104845?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Integrated+Analysis+of+Policy+Options+for+Protection+of+Groundwater+Quality&rft.au=Huang%2C+W+Y%3BUri%2C+N+D&rft.aulast=Huang&rft.aufirst=W&rft.date=1990-05-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Ablation of exaggerated meal-stimulated gastrin release in duodenal ulcer patients after clearance of Helicobacter (Campylobacter) pylori infection. AN - 85221509; pmid-2327380 AB - An exaggerated increase in meal-stimulated gastrin is a common finding in patients with duodenal ulcer. Duodenal ulcer patients also exhibit an increase in the number of parietal cells, which results in an increase in maximum acid output. There are also data to suggest that acid hypersecretion may not predate the ulcer disease, but is acquired, possibly due to the trophic effects of the exaggerated gastrin release on parietal cells. We investigated meal-stimulated gastrin release in nine Helicobacter pylori-infected individuals; eight patients with chronic duodenal ulcer and one H. pylori-infected healthy control, both before and after therapy designed to eradicate H. pylori infection. We also simultaneously measured intragastric pH in six duodenal ulcer patients. Eradication of the H. pylori infection reversed the exaggerated meal-stimulated gastrin release (gastrin secretion fell from 141 + 16 pg/ml/h before treatment to 98 +/- 7 pg/ml/h after, p less than 0.01) without affecting intragastric pH. Whereas exaggerated meal-stimulated gastrin release may be an important pathogenetic feature of duodenal ulcer disease, we conclude that it is secondary to the H. pylori infection. This study provides further insight into the role of H. pylori in the pathogenesis of duodenal ulcer disease. We postulate that reversal of the abnormalities in gastrin secretion will be associated with a gradual return of gastric secretion to normal. JF - The American Journal of Gastroenterology AU - Graham, D Y AU - Opekun, A AU - Lew, G M AU - Evans, D J AU - Klein, P D AU - Evans, D G AD - Department of Medicine, USDA/ARS Children's Nutrition Research Center, Houston, Texas. PY - 1990 SP - 394 EP - 398 VL - 85 IS - 4 SN - 0002-9270, 0002-9270 KW - Metronidazole KW - Support, U.S. Gov't, P.H.S. KW - Organometallic Compounds KW - Human KW - Salicylates KW - Tetracycline KW - Gastrins KW - Bismuth KW - Duodenal Ulcer KW - Drug Therapy, Combination KW - Campylobacter Infections KW - Middle Age KW - Support, Non-U.S. Gov't KW - Support, U.S. Gov't, Non-P.H.S. KW - Male KW - Female KW - Food UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/85221509?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acomdisdome&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+American+Journal+of+Gastroenterology&rft.atitle=Ablation+of+exaggerated+meal-stimulated+gastrin+release+in+duodenal+ulcer+patients+after+clearance+of+Helicobacter+%28Campylobacter%29+pylori+infection.&rft.au=Graham%2C+D+Y%3BOpekun%2C+A%3BLew%2C+G+M%3BEvans%2C+D+J%3BKlein%2C+P+D%3BEvans%2C+D+G&rft.aulast=Graham&rft.aufirst=D&rft.date=1990-04-01&rft.volume=85&rft.issue=4&rft.spage=394&rft.isbn=&rft.btitle=&rft.title=The+American+Journal+of+Gastroenterology&rft.issn=00029270&rft_id=info:doi/ LA - eng DB - ComDisDome N1 - Last updated - 2010-05-07 ER - TY - JOUR T1 - Production of Salmonella enteritidis-contaminated eggs by experimentally infected hens. AN - 79873328; 2196046 AB - Laying hens of three different ages were experimentally infected with a strain of Salmonella enteritidis by either oral inoculation or contact transmission. Total egg production was depressed in exposed hens of all three age groups. Persistent intestinal shedding was observed in a small number of hens. Eggs with contents contaminated by S. enteritidis were produced by exposed hens at a high frequency, but only during a fairly short period of time that extended through approximately 1 week postinoculation for older hens and through 2 weeks for younger hens. S. enteritidis was recovered from whole yolks and albumen of these eggs at similar frequencies, but not from the content of yolks. Eggs with contaminated shells were also produced, but at a lower frequency. Contaminated eggs were produced by orally inoculated and contact-exposed hens at similar frequencies. S. enteritidis was not isolated from the contents of eggs laid by hens infected with other S. enteritidis strains. JF - Avian diseases AU - Gast, R K AU - Beard, C W AD - United States Department of Agriculture, Southeast Poultry Research Laboratory, Athens, Georgia 30605. PY - 1990 SP - 438 EP - 446 VL - 34 IS - 2 SN - 0005-2086, 0005-2086 KW - Index Medicus KW - Feces -- microbiology KW - Egg Shell KW - Animals KW - Egg White KW - Egg Yolk KW - Cloaca -- microbiology KW - Oviposition KW - Intestines -- microbiology KW - Female KW - Salmonella Infections, Animal -- microbiology KW - Food Microbiology KW - Poultry Diseases -- physiopathology KW - Poultry Diseases -- microbiology KW - Chickens -- microbiology KW - Salmonella Infections, Animal -- physiopathology KW - Eggs KW - Salmonella enteritidis -- isolation & purification UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79873328?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+diseases&rft.atitle=Production+of+Salmonella+enteritidis-contaminated+eggs+by+experimentally+infected+hens.&rft.au=Gast%2C+R+K%3BBeard%2C+C+W&rft.aulast=Gast&rft.aufirst=R&rft.date=1990-04-01&rft.volume=34&rft.issue=2&rft.spage=438&rft.isbn=&rft.btitle=&rft.title=Avian+diseases&rft.issn=00052086&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-08-14 N1 - Date created - 1990-08-14 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Virulence and toxigenicity of capsular serogroup D Pasteurella multocida strains isolated from avian hosts. AN - 79872276; 2369378 AB - Five capsular serogroup D strains of Pasteurella multocida isolated from avian hosts were examined for virulence and toxigenicity. Virulence was based on development of lethal infections or lesions following intramuscular exposure of turkey poults. The four strains isolated from turkeys varied from slightly to moderately virulent; the strain isolated from a chicken was avirulent. Poults exposed by intra-airsac inoculation with relatively few organisms of the more virulent of the strains had a high mortality rate; however, intranasal exposure of poults with this strain did not cause clinical disease or establish infections. All strains from turkeys were toxigenic, producing heat-labile toxins that killed poults when administered intraperitoneally and caused focal dermal lesions when administered intradermally. Using these criteria, the strain from a chicken was not toxigenic. The demonstration of virulence, particularly the high mortality in poults exposed via air sacs, indicates avian capsular serogroup D strains are a potential cause of fowl cholera. JF - Avian diseases AU - Rhoades, K R AU - Rimler, R B AD - National Animal Disease Center, United States Department of Agriculture, Ames, Iowa 50010. PY - 1990 SP - 384 EP - 388 VL - 34 IS - 2 SN - 0005-2086, 0005-2086 KW - Bacterial Toxins KW - 0 KW - Index Medicus KW - Virulence KW - Animals KW - Chickens -- microbiology KW - Turkeys -- microbiology KW - Pasteurella Infections -- veterinary KW - Pasteurella Infections -- microbiology KW - Poultry Diseases -- microbiology KW - Pasteurella -- pathogenicity KW - Bacterial Toxins -- biosynthesis KW - Pasteurella -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79872276?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+diseases&rft.atitle=Virulence+and+toxigenicity+of+capsular+serogroup+D+Pasteurella+multocida+strains+isolated+from+avian+hosts.&rft.au=Rhoades%2C+K+R%3BRimler%2C+R+B&rft.aulast=Rhoades&rft.aufirst=K&rft.date=1990-04-01&rft.volume=34&rft.issue=2&rft.spage=384&rft.isbn=&rft.btitle=&rft.title=Avian+diseases&rft.issn=00052086&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-08-14 N1 - Date created - 1990-08-14 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Comparison of enrichment and plating media for isolation of Yersinia. AN - 79831933; 2356183 AB - Yersinia enterocolitica (Serotypes 0:3 or 0:8), Yersinia frederiksenii, Yersinia kristensenii, or Yersinia intermedia along with 10(8) cells of each of three extraneous organisms (Escherichia coli, Enterobacter aerogenes, Pseudomonas fragi), all commonly found on market poultry, were inoculated into five enrichment media followed by streaking onto 11 plating media to determine the most-efficacious combinations for future surveys or assessment studies. For Yersinia enterocolitica (0:8), infrequent recoveries were made using yeast extract-rosebengal-bile oxalate sorbose broth and phosphate-buffered saline (4 C) followed by plating onto pectin, DNase-Tween 80 (polyoxyethylene sorbitan monooleate)-sorbitol, MacConkey-Tween 80, or cefsulodin-irgasan-novobiocin (CIN) agars. With Y. enterocolitica (0:3), recoveries were most frequently made using phosphate-buffered saline, sorbitol bile (incubated for 17 days) and yeast extract-rosebengal-bile oxalate sorbose broth followed by plating onto pectin, CIN, bismuth sulfite (Difco Laboratories, Detroit, MI), or modified Rimler-Shotts agar. For Y. frederiksenii, Y. kristensenii, and Y. intermedia, incubation in sorbitol bile for 17 days or in yeast extract-rosebengal-bile oxalate sorbose broth, followed by plating onto CIN, pectin, DNase-Tween/80-sorbitol, cellobiose-arginine-lysine agar, or MacConkey-Tween 80 agar yielded the most-frequent recoveries. Overall, the CIN and pectin agars performed best for the recovery of the Yersinia bacterium; the modified selenite broth and the bismuth-sulfite plating agars were unsatisfactory in the present study. JF - Poultry science AU - Cox, N A AU - Bailey, J S AU - Del Corral, F AU - Shotts, E B AD - USDA/ARS-Richard B. Russell Agricultural Research Center, Athens, Georgia 30613. Y1 - 1990/04// PY - 1990 DA - April 1990 SP - 686 EP - 693 VL - 69 IS - 4 SN - 0032-5791, 0032-5791 KW - Culture Media KW - 0 KW - Index Medicus KW - Meat KW - Animals KW - Chickens KW - Food Microbiology KW - Yersinia -- isolation & purification UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79831933?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Poultry+science&rft.atitle=Comparison+of+enrichment+and+plating+media+for+isolation+of+Yersinia.&rft.au=Cox%2C+N+A%3BBailey%2C+J+S%3BDel+Corral%2C+F%3BShotts%2C+E+B&rft.aulast=Cox&rft.aufirst=N&rft.date=1990-04-01&rft.volume=69&rft.issue=4&rft.spage=686&rft.isbn=&rft.btitle=&rft.title=Poultry+science&rft.issn=00325791&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-07-26 N1 - Date created - 1990-07-26 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - The in vivo erythrocyte micronucleus test: measurement at steady state increases assay efficiency and permits integration with toxicity studies. AN - 79776562; 2111256 AB - The mouse erythrocyte micronucleus assay has been traditionally carried out using one or two exposures to the test agent, followed by sampling at two or three postexposure times to obtain a sample near the time of the transient peak of micronucleated polychromatic erythrocytes (PCEs). We have demonstrated that frequencies of micronucleated RNA-positive (PCEs) and RNA-negative erythrocytes in blood and bone marrow come to steady state during "continuous" exposure via diet or drinking water, or during repeated daily exposures to test agents by ip injection, gavage, or inhalation. Under these exposure conditions, frequencies of micronucleated cells in peripheral blood approached steady state within 2-3 days in RNA-positive erythrocytes and in 5-6 weeks in RNA-negative erythrocytes. With exposure durations of 6 days (monocrotaline or Crotalaria seeds in diet), 10 days (triethylenemelamine, mitomycin C, 7,12-dimethylbenzanthracene, or colchicine, ip daily), 90 days (triethylenemelamine or urethan in drinking water or 1,3-butadiene via inhalation), or 2 years (benezene by daily gavage), frequencies of micronucleated cells attained and remained at steady state for prolonged periods. At steady state, frequencies of micronucleated RNA-positive cells in bone marrow samples were similar to those in RNA-positive and RNA-negative cells in peripheral blood (e.g., triethylenemelamine in drinking water at 4 micrograms/ml resulted in frequencies of micronucleated RNA-negative erythrocytes in peripheral blood of 27/1000 after 45 days of exposure and 24/1000 after 90 days, with a frequency of 28/1000 in bone marrow RNA-positive erythrocytes after 90 days). The data suggest that the efficiency of the assay would be markedly improved by using a repeated dose schedule with a single sample taken at steady state, rather than scoring multiple samples at various times after a single dose. This approach allows the frequency of micronucleated cells to be measured in a sample of bone marrow or blood obtained at almost any stage of routine toxicity testing. JF - Fundamental and applied toxicology : official journal of the Society of Toxicology AU - MacGregor, J T AU - Wehr, C M AU - Henika, P R AU - Shelby, M D AD - Food Safety Research Unit, Western Regional Research Center, U.S. Department of Agriculture, Albany, California 94710. Y1 - 1990/04// PY - 1990 DA - April 1990 SP - 513 EP - 522 VL - 14 IS - 3 SN - 0272-0590, 0272-0590 KW - Butadienes KW - 0 KW - Mitomycins KW - Pyrrolizidine Alkaloids KW - Urethane KW - 3IN71E75Z5 KW - Mitomycin KW - 50SG953SK6 KW - 9,10-Dimethyl-1,2-benzanthracene KW - 57-97-6 KW - Monocrotaline KW - 73077K8HYV KW - Triethylenemelamine KW - F7IY6HZG9D KW - Benzene KW - J64922108F KW - 1,3-butadiene KW - JSD5FGP5VD KW - Colchicine KW - SML2Y3J35T KW - Index Medicus KW - Mitomycins -- toxicity KW - Animals KW - Plants, Toxic -- analysis KW - Benzene -- toxicity KW - Mice KW - Pyrrolizidine Alkaloids -- toxicity KW - Triethylenemelamine -- toxicity KW - Bone Marrow Cells KW - Colchicine -- toxicity KW - Mice, Inbred Strains KW - Butadienes -- toxicity KW - 9,10-Dimethyl-1,2-benzanthracene -- toxicity KW - Diet KW - Urethane -- toxicity KW - Bone Marrow -- drug effects KW - Male KW - Erythrocytes -- ultrastructure KW - Erythrocytes -- drug effects KW - Micronucleus Tests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79776562?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Fundamental+and+applied+toxicology+%3A+official+journal+of+the+Society+of+Toxicology&rft.atitle=The+in+vivo+erythrocyte+micronucleus+test%3A+measurement+at+steady+state+increases+assay+efficiency+and+permits+integration+with+toxicity+studies.&rft.au=MacGregor%2C+J+T%3BWehr%2C+C+M%3BHenika%2C+P+R%3BShelby%2C+M+D&rft.aulast=MacGregor&rft.aufirst=J&rft.date=1990-04-01&rft.volume=14&rft.issue=3&rft.spage=513&rft.isbn=&rft.btitle=&rft.title=Fundamental+and+applied+toxicology+%3A+official+journal+of+the+Society+of+Toxicology&rft.issn=02720590&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-06-28 N1 - Date created - 1990-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Condemnation of beef because of Sarcocystis hirsuta infection. AN - 79739347; 2109746 AB - Carcasses from 18 Holstein cows from Nevada, California, and Oregon were condemned because of grossly visible sarcocysts of Sarcocystis hirsuta. Sarcocysts were white to dull white, 2 to 7 mm long, and approximately 1 mm wide. Sarcocysts were most numerous in muscles of diaphragm, flank, and limbs and were able to infect laboratory-raised cats. JF - Journal of the American Veterinary Medical Association AU - Dubey, J P AU - Udtujan, R M AU - Cannon, L AU - Lindsay, D S AD - Zoonotic Diseases Laboratory, Livestock and Poultry Sciences Institute, USDA-ARS, Beltsville, MD 20705. Y1 - 1990/04/01/ PY - 1990 DA - 1990 Apr 01 SP - 1095 EP - 1096 VL - 196 IS - 7 SN - 0003-1488, 0003-1488 KW - Index Medicus KW - California KW - Oregon KW - Animals KW - Cattle KW - Nevada KW - Female KW - Meat KW - Sarcocystosis -- parasitology KW - Sarcocystis -- growth & development KW - Food Contamination KW - Cattle Diseases -- parasitology KW - Sarcocystosis -- veterinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79739347?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Veterinary+Medical+Association&rft.atitle=Condemnation+of+beef+because+of+Sarcocystis+hirsuta+infection.&rft.au=Dubey%2C+J+P%3BUdtujan%2C+R+M%3BCannon%2C+L%3BLindsay%2C+D+S&rft.aulast=Dubey&rft.aufirst=J&rft.date=1990-04-01&rft.volume=196&rft.issue=7&rft.spage=1095&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Veterinary+Medical+Association&rft.issn=00031488&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-05-31 N1 - Date created - 1990-05-31 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Early embryonic death in lambs induced by Veratrum californicum. AN - 79693438; 2318044 AB - Both field and laboratory observations have suggested the possibility of embryonic death from 14th day ingestion of Veratrum californicum by pregnant sheep. An experiment was conducted to tabulate the incidence of embryonic death from 14th day ingestion of high doses of plant material. Six of eight ewes so dosed were non-pregnant at term (75%), compared to none in controls, and were, therefore, believed to have experienced embryonic death from the plant ingestion. Results suggest that ingestion of plant material could account for many open ewes at lambing time in ranching operations where Veratrum has been ingested in early gestation. JF - The Cornell veterinarian AU - Keeler, R F AD - USDA/ARS/Poisonous Plant Research Laboratory, Logan, UT 84321. Y1 - 1990/04// PY - 1990 DA - April 1990 SP - 203 EP - 207 VL - 80 IS - 2 SN - 0010-8901, 0010-8901 KW - Index Medicus KW - Animals KW - Sheep KW - Female KW - Pregnancy KW - Plants, Toxic KW - Fetal Death -- veterinary KW - Veratrum KW - Fetal Death -- etiology KW - Plants, Medicinal KW - Plant Poisoning -- veterinary KW - Sheep Diseases -- etiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79693438?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Cornell+veterinarian&rft.atitle=Early+embryonic+death+in+lambs+induced+by+Veratrum+californicum.&rft.au=Keeler%2C+R+F&rft.aulast=Keeler&rft.aufirst=R&rft.date=1990-04-01&rft.volume=80&rft.issue=2&rft.spage=203&rft.isbn=&rft.btitle=&rft.title=The+Cornell+veterinarian&rft.issn=00108901&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-05-10 N1 - Date created - 1990-05-10 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Tennessee-Tombigbee Waterway Canal Section Effect on Adjacent Bottomland Hardwoods AN - 19122158; 9105147 AB - Landowners, environmentalists, and project management personnel have all expressed concern as to what effect the Tennessee-Tombigbee Waterway Canal Section, with its operating water level above the adjacent flood plain surface, would have on the bottomland hardwoods. A seven-year (1982- 1989) study was made in the bottomland hardwood plain to measure the alluvial aquifer levels, the groundwater levels, the soil moisture, and the vegetative growth. Measurements were made once monthly to track seasonal changes distinguished from pre-pool and post-pool changes using piezometers, tensiometers, soil moisture blocks, and a nuclear moisture probe. The pre-pool alluvial piezometer water levels clearly show a seasonal wet/dry summer pattern which is continued at the higher post- pool levels. The soil moisture tension and total soil moisture values continue the seasonal fluctuations during both pre-pool and post-pool periods. The Canal pool influence extends from about 1000 feet to 1500 feet outside the Canal levee centerline, typical for dry and wet periods, respectively. The influence appears to be diminished, due to aquifer material resistance, to about 1.0 foot of additional artesian head at the 1300-foot distance, about 0.5 foot below natural ground. The clay soil material supporting the vegetative growth is about 10 feet thick, providing an effective barrier against the alluvial artesian pressure influencing vegetative growth. Piezometers show that vegetative consumptive use is greater than water movement through the soil. The continued measurements from 1982-1989 show normal growth rates for the selected trees. It is concluded that there is no impact and, therefore, no vegetative changes caused by the Canal impoundment. (See also W91- 05137) (Fish-PTT) JF - Proceedings, Twentieth Mississippi Water Resources Conference, April 10-11, 1990. Jackson, Mississippi. Water Resources Research Institute, Mississippi State University, Mississippi State, Mississippi 39762. 1990. p 92-97, 3 fig, 8 ref. AU - Ulmer, R L AD - Soil Conservation Service Y1 - 1990/04// PY - 1990 DA - Apr 1990 KW - Water Resources Abstracts KW - Bottomland Canals Environmental impact Flood plain management KW - Forest hydrology Tennessee Alluvial aquifers Artesian head Clays KW - Groundwater level Moisture tension Piezometers Plant growth KW - Seasonal variation Soil water Tensiometers KW - SW 4070:Ecological impact of water development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19122158?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Tennessee-Tombigbee+Waterway+Canal+Section+Effect+on+Adjacent+Bottomland+Hardwoods&rft.au=Ulmer%2C+R+L&rft.aulast=Ulmer&rft.aufirst=R&rft.date=1990-04-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Rice and Furrow Irrigation Management AN - 19113390; 9105159 AB - Water use on rice fields has been monitored by the Soil Conservation Service (SCS) since 1987. Three rice fields were monitored during the summer of 1989 to determine how well water was managed on each. Furrow irrigation requires a high level of labor input to schedule and operate. Observations and measurement indicate that on most Mississippi Delta cotton land, intake rates decrease after an initial rate to a lower rate. Long opportunity (soak) times contribute more to runoff than soil moisture. It would appear advisable to use high furrow rates (15 gpm) for long (1320-ft) rows and lower rates (7 gpm) for shorter (800-ft) rows to push water to the end of the furrows, get a majority of rows out, then shut off the water and move to another set. This may mean one more irrigation during the course of a season. Irrigating every other middle would appear to be advisable to prevent waterlogging the soil if hit by thunderstorms after irrigating. This would necessitate more irrigations which may be unfeasible if gated pipe needs to be moved. Moving pipe causes one to schedule irrigations by the ability to move pipe rather than the needs or capabilities of the soil or plant. The use of flowmeters can help to determine furrow stream sizes and number of gates to open. Tailwater recovery pits are also a possibility if runoff from large irrigated areas can be captured. (See also W91-05137) (Fish-PTT) JF - Proceedings, Twentieth Mississippi Water Resources Conference, April 10-11, 1990. Jackson, Mississippi. Water Resources Research Institute, Mississippi State University, Mississippi State, Mississippi 39762. 1990. p 178-185, 4 fig, 2 tab. AU - Rodrigue, P B AD - Soil Conservation Service Y1 - 1990/04// PY - 1990 DA - Apr 1990 KW - Water Resources Abstracts KW - Agricultural water Furrow irrigation Irrigation efficiency KW - Irrigation management Mississippi Rice Furrow drainage KW - Irrigation practices Pipes Runoff Soil water Water management KW - SW 1060:Conservation in agricultural use UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19113390?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Rice+and+Furrow+Irrigation+Management&rft.au=Rodrigue%2C+P+B&rft.aulast=Rodrigue&rft.aufirst=P&rft.date=1990-04-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Sylvaticin: a new cytotoxic and insecticidal acetogenin from Rollinia sylvatica (Annonaceae). AN - 79666070; 2178957 AB - Sylvaticin (I), a new tetrahydroxy annonaceous acetogenin with nonadjacent tetrahydrofuran rings, has been isolated from the dried fruits of Rollinia sylvatica St. Hil. (Annonaceae). This compound is extremely cytotoxic to human tumor cells and shows promising insect control properties. JF - Experientia AU - Mikolajczak, K J AU - Madrigal, R V AU - Rupprecht, J K AU - Hui, Y H AU - Liu, Y M AU - Smith, D L AU - McLaughlin, J L AD - USDA-ARS, Northern Regional Research Center, Peoria, Illinois 61604. Y1 - 1990/03/15/ PY - 1990 DA - 1990 Mar 15 SP - 324 EP - 327 VL - 46 IS - 3 SN - 0014-4754, 0014-4754 KW - Antineoplastic Agents, Phytogenic KW - 0 KW - Furans KW - Insecticides KW - Plant Extracts KW - sylvaticin KW - Index Medicus KW - Animals KW - Chemistry KW - Chemical Phenomena KW - Gas Chromatography-Mass Spectrometry KW - Magnetic Resonance Spectroscopy KW - Plant Extracts -- pharmacology KW - Furans -- immunology KW - Plant Extracts -- analysis KW - Furans -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79666070?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Experientia&rft.atitle=Sylvaticin%3A+a+new+cytotoxic+and+insecticidal+acetogenin+from+Rollinia+sylvatica+%28Annonaceae%29.&rft.au=Mikolajczak%2C+K+J%3BMadrigal%2C+R+V%3BRupprecht%2C+J+K%3BHui%2C+Y+H%3BLiu%2C+Y+M%3BSmith%2C+D+L%3BMcLaughlin%2C+J+L&rft.aulast=Mikolajczak&rft.aufirst=K&rft.date=1990-03-15&rft.volume=46&rft.issue=3&rft.spage=324&rft.isbn=&rft.btitle=&rft.title=Experientia&rft.issn=00144754&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-04-26 N1 - Date created - 1990-04-26 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Effect of copper deficiency and cis-diamminedichloroplatinum (II) treatment on the activities of renal microvillar enzymes in rats. AN - 80409088; 1983771 AB - Recent studies have shown that some manifestations of cis-diamminedichloroplatinum (II) (cis-Pt) induced nephrotoxicity in animals may be exacerbated if the animals are nutritionally deprived of copper. The objective of the present study was to determine the effects of cis-Pt induced toxicity on enzyme activities in the kidney microvilli of rats with different copper statuses. Weanling male rats were fed copper-deficient (CuD) (less than 1 mg/kg Cu of diet) or copper-adequate (CuA) (5 mg/L of Cu in drinking water) regimens. After 24 days, rats were given i.v. injections of either cis-Pt (5 mg/kg BW) or saline in a 2 x 2 factorial design. At days 2 and 4 post-injection rats were killed and tubular microvilli isolated from the kidney cortex. Each preparation was assayed for the activities of 5 membrane-bound enzymes. Angiotensin-I converting enzyme (ACE) activity was 20 to 30% higher in the microvilli of CuD rats than in controls. Cis-Pt treatment enhanced ACE activity as well, and activity in treated rats was 60 to 110% higher than in controls. At day 2 there was a 20% greater increase in ACE activity in cis-Pt-treated CuD rats than in CuA rats. Aminopeptidase N activity was 35% lower in CuD rats than controls, but activity was not affected by cis-Pt. Gamma-glutamyltransferase activity was lowered by as much as 30% in cis-Pt-treated rats when compared to controls, but there was no effect of copper deficiency. Alkaline phosphatase and neutral endopeptidase 24.11 activities were significantly lower in microvilli of cis-Pt-treated rats than in those not treated.(ABSTRACT TRUNCATED AT 250 WORDS) JF - Journal of trace elements and electrolytes in health and disease AU - Reeves, P G AU - Noordewier, B AU - Saari, J T AD - United States Department of Agriculture, Grand Forks Human Nutrition Research Center, ND 58202. Y1 - 1990/03// PY - 1990 DA - March 1990 SP - 11 EP - 19 VL - 4 IS - 1 SN - 0931-2838, 0931-2838 KW - Copper KW - 789U1901C5 KW - gamma-Glutamyltransferase KW - EC 2.3.2.2 KW - Alkaline Phosphatase KW - EC 3.1.3.1 KW - Aminopeptidases KW - EC 3.4.11.- KW - Antigens, CD13 KW - EC 3.4.11.2 KW - Peptidyl-Dipeptidase A KW - EC 3.4.15.1 KW - Neprilysin KW - EC 3.4.24.11 KW - Zinc KW - J41CSQ7QDS KW - Cisplatin KW - Q20Q21Q62J KW - Index Medicus KW - Animals KW - Neprilysin -- metabolism KW - Microvilli -- enzymology KW - Cell Membrane -- enzymology KW - gamma-Glutamyltransferase -- metabolism KW - Microvilli -- metabolism KW - Alkaline Phosphatase -- metabolism KW - Blood Urea Nitrogen KW - Liver -- chemistry KW - Rats, Inbred Strains KW - Rats KW - Zinc -- analysis KW - Microvilli -- drug effects KW - Aminopeptidases -- metabolism KW - Peptidyl-Dipeptidase A -- metabolism KW - Male KW - Cisplatin -- therapeutic use KW - Kidney -- metabolism KW - Kidney -- pathology KW - Cisplatin -- toxicity KW - Copper -- metabolism KW - Kidney -- enzymology KW - Kidney -- drug effects KW - Copper -- deficiency UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80409088?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+trace+elements+and+electrolytes+in+health+and+disease&rft.atitle=Effect+of+copper+deficiency+and+cis-diamminedichloroplatinum+%28II%29+treatment+on+the+activities+of+renal+microvillar+enzymes+in+rats.&rft.au=Reeves%2C+P+G%3BNoordewier%2C+B%3BSaari%2C+J+T&rft.aulast=Reeves&rft.aufirst=P&rft.date=1990-03-01&rft.volume=4&rft.issue=1&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=Journal+of+trace+elements+and+electrolytes+in+health+and+disease&rft.issn=09312838&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-08-11 N1 - Date created - 1992-08-11 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - New food safety initiatives in the Food Safety and Inspection Service, U.S. Department of Agriculture. AN - 79692537; 2180881 AB - The production of meat and poultry products has become increasingly complex. Technological growth has contributed to the need for sophistication in determining the origin and risk of food-borne microbial infections as well as environmental contaminants. The increasing use of agricultural chemicals in animal production and to some extent in processed foods has led to the presence of chemical residues in meat and poultry. These changes have caused the Food Safety and Inspection Service (FSIS), a public health agency within the United States Department of Agriculture (USDA), to institute new food safety initiatives and procedures for inspection of meat and poultry products. The goal is to reduce risks to the public health from conditions observed during antemortem and postmortem inspection or detected during processing. FSIS is committed to scientific innovation and has implemented several rapid inplant tests that have given the Agency inexpensive, less disruptive methods to determine product adulteration contamination. JF - Journal of animal science AU - Norcross, M A AU - Post, A R AD - Food Safety and Inspection Service, USDA, Washington, DC 20250. Y1 - 1990/03// PY - 1990 DA - March 1990 SP - 863 EP - 869 VL - 68 IS - 3 SN - 0021-8812, 0021-8812 KW - Index Medicus KW - United States KW - Meat KW - Animals KW - Poultry KW - Government Agencies KW - Food Contamination KW - Drug Residues KW - Food Inspection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79692537?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+animal+science&rft.atitle=New+food+safety+initiatives+in+the+Food+Safety+and+Inspection+Service%2C+U.S.+Department+of+Agriculture.&rft.au=Norcross%2C+M+A%3BPost%2C+A+R&rft.aulast=Norcross&rft.aufirst=M&rft.date=1990-03-01&rft.volume=68&rft.issue=3&rft.spage=863&rft.isbn=&rft.btitle=&rft.title=Journal+of+animal+science&rft.issn=00218812&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-05-01 N1 - Date created - 1990-05-01 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - WEPP: Modeling for the User AN - 19092841; 9109586 AB - The Water Erosion Prediction Project is a project of several federal agencies to develop a soil erosion prediction technology that will replace the Universal Soil Loss Equation. A major contributor to the project has been the commitment by the U. S. Department of Agriculture (USDA) and other federal agencies to use the technology once developed and to participate in its development. A second major milestone was the development of a set of user requirements of the technologies capabilities, the science used, how the technology was to be implemented. The project has been conducted by a core team of scientists and users of the technology with the users responsible for the user friendly aspects of the technology. The scientists and users have been located at a number of locations around the country and communications have been through an electronic mail system, core team meetings and component work sessions. The major criticism of the planning process was that the agency chiefs accepted a plan to which no funding was attached. Another criticism of WEPP planning has been a lack of uniform support across all agencies. (See also W91-09570) (Author's abstract) JF - IN: Transferring Models to Users. American Water Resources Association, Bethesda, Maryland. 1990. p 161-169. 1 tab, 6 ref. AU - Laflen, J M AU - Schertz, D L AD - USDA Agricultural Research Service, National Soil Erosion Research Laboratory, West Lafayette, Indiana, 47907 Y1 - 1990/03// PY - 1990 DA - Mar 1990 KW - Water Resources Abstracts KW - Computer models KW - Erosion KW - Model studies KW - Soil erosion KW - Computer programs KW - Computers KW - Decision making KW - Hydrologic models KW - Interagency cooperation KW - Land management KW - Land use KW - Planning KW - Prediction KW - Simulation KW - Technology transfer KW - WEPP KW - SW 5080:Evaluation, processing and publication KW - SW 0870:Erosion and sedimentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19092841?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=WEPP%3A+Modeling+for+the+User&rft.au=Laflen%2C+J+M%3BSchertz%2C+D+L&rft.aulast=Laflen&rft.aufirst=J&rft.date=1990-03-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Toxicological evaluation of sicklepod and black nightshade seeds in short-term feeding studies in rats. AN - 79775323; 2341088 AB - Nutritionally complete diets containing sicklepod or black nightshade seed at 1, 2, 4, 8, 16 and 32% were fed to groups of three to five male Sprague-Dawley rats in a series of short-term (8-9 days) toxicity studies. Gross clinical observations, body weights and feed and water intake data were recorded. Clinical chemistry analyses, haematology, histology and bone-marrow evaluation for evidence of clastogenic effects were performed. In addition, groups of five female rats were fed sicklepod seed at the same dosages to compare effects on body weight and feed and water consumption. For sicklepod, all of the animals fed diet containing 32% seed and one (female) fed diet containing 16% seed died by day 8. Body-weight gain and feed and water consumption were decreased with increasing doses of sicklepod seed. Other effects of sicklepod seed included: testicular hypospermia at dosages of 8% or greater, and bone-marrow depletion, reduced numbers of polychromatic erythrocytes in the bone marrow, increased neutrophil:lymphocyte ratio, and red nasal discharge at 16%. Black nightshade seed was relatively non-toxic compared with the sicklepod. The principal adverse effects of black nightshade were decreased body-weight gain and feed consumption, which occurred during the first 3 days of the study in animals fed 32% seed. JF - Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association AU - Dugan, G M AU - Gumbmann, M R AD - Western Regional Research Center, US Department of Agriculture, Albany, CA 94710. Y1 - 1990/02// PY - 1990 DA - February 1990 SP - 101 EP - 107 VL - 28 IS - 2 SN - 0278-6915, 0278-6915 KW - Index Medicus KW - Drinking KW - Animals KW - Mortality KW - Blood Chemical Analysis KW - Organ Size KW - Blood Cell Count KW - Rats, Inbred Strains KW - Rats KW - Body Weight KW - Bone Marrow Cells KW - Eating KW - Diet KW - Female KW - Male KW - Plants, Toxic KW - Seeds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79775323?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Food+and+chemical+toxicology+%3A+an+international+journal+published+for+the+British+Industrial+Biological+Research+Association&rft.atitle=Toxicological+evaluation+of+sicklepod+and+black+nightshade+seeds+in+short-term+feeding+studies+in+rats.&rft.au=Dugan%2C+G+M%3BGumbmann%2C+M+R&rft.aulast=Dugan&rft.aufirst=G&rft.date=1990-02-01&rft.volume=28&rft.issue=2&rft.spage=101&rft.isbn=&rft.btitle=&rft.title=Food+and+chemical+toxicology+%3A+an+international+journal+published+for+the+British+Industrial+Biological+Research+Association&rft.issn=02786915&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-06-27 N1 - Date created - 1990-06-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Inhibition of protein synthesis in rat primary hepatocytes by extracts of Fusarium moniliforme-contaminated corn. AN - 79775170; 2341093 AB - Mycological screening of two separate lots of corn samples that caused field cases of equine leukoencephalomalacia (ELEM) revealed heavy contamination with the fungus Fusarium moniliforme. Neutral and acidic fractions of a chloroform-methanol (1:1, v/v) extract of the corn were evaluated for toxicity using rat primary hepatocytes. The extracts had little effect on the release of lactate dehydrogenase from the hepatocytes, and were without effect on unscheduled DNA synthesis, indicating low cell lethality and lack of genotoxicity. However, neutral extracts of the corn were found to contain potent inhibitor(s) of protein synthesis as measured by incorporation of [3H]valine into the hepatocytes. When an isolate of F. moniliforme obtained from the corn samples or an isolate of F. moniliforme from South Africa that had previously been shown to cause ELEM (MRC 826) were grown on autoclaved seed corn, neutral extracts of the culture materials similarly inhibited protein synthesis. Whether the compound(s) responsible for inhibition of protein synthesis is associated with any of the toxic syndromes associated with F. moniliforme remains to be determined. The use of primary hepatocytes may be a useful bioassay for elucidating biologically active secondary metabolites of fungi. JF - Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association AU - Norred, W P AU - Bacon, C W AU - Porter, J K AU - Voss, K A AD - Richard B. Russell Agricultural Research Center, United States Department of Agriculture, Athens, GA 30613. Y1 - 1990/02// PY - 1990 DA - February 1990 SP - 89 EP - 94 VL - 28 IS - 2 SN - 0278-6915, 0278-6915 KW - Irritants KW - 0 KW - Mycotoxins KW - Plant Extracts KW - Protein Synthesis Inhibitors KW - DNA KW - 9007-49-2 KW - L-Lactate Dehydrogenase KW - EC 1.1.1.27 KW - Valine KW - HG18B9YRS7 KW - Index Medicus KW - Rats, Inbred Strains KW - Rats KW - Animals KW - In Vitro Techniques KW - Rabbits KW - Valine -- metabolism KW - DNA -- biosynthesis KW - Male KW - L-Lactate Dehydrogenase -- metabolism KW - Plant Extracts -- pharmacology KW - Zea mays -- microbiology KW - Fusarium -- metabolism KW - Mycotoxins -- pharmacology KW - Liver -- drug effects KW - Liver -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79775170?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Food+and+chemical+toxicology+%3A+an+international+journal+published+for+the+British+Industrial+Biological+Research+Association&rft.atitle=Inhibition+of+protein+synthesis+in+rat+primary+hepatocytes+by+extracts+of+Fusarium+moniliforme-contaminated+corn.&rft.au=Norred%2C+W+P%3BBacon%2C+C+W%3BPorter%2C+J+K%3BVoss%2C+K+A&rft.aulast=Norred&rft.aufirst=W&rft.date=1990-02-01&rft.volume=28&rft.issue=2&rft.spage=89&rft.isbn=&rft.btitle=&rft.title=Food+and+chemical+toxicology+%3A+an+international+journal+published+for+the+British+Industrial+Biological+Research+Association&rft.issn=02786915&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-06-27 N1 - Date created - 1990-06-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Toxicological and nutritional evaluation of velvetleaf seed: subchronic 90-day feeding study and protein efficiency ratio assay. AN - 79773762; 2341094 AB - Velvetleaf seed, a common weed contaminant in grain, was fed to male and female rats (20 per group) in a 90-day subchronic feeding study. Diets contained 0, 2.5, 5.0 or 10.0% seed. Gross clinical observations, body weights, and feed and water intake data were recorded weekly. After 91-93 days, all of the animals were autopsied, organ weights were obtained, and clinical chemistry analyses, haematology and bone-marrow evaluation for evidence of clastogenic effects were performed. Tissues from control (0% seed) and high-dose animals were examined histologically. Few effects from velvetleaf seed in the diet were noted. Body-weight gain, water consumption, organ weights, bone marrow, and haematology measurements were similar to those of control rats. Male rats fed 2.5 or 10% seed consumed less feed/kg body weight than did the controls. For males fed 10% seed, the alkaline phosphatase concentration and albumin:globulin ratio were significantly increased compared with the 0% control values. For females fed 10% seed, serum glucose and cholesterol values were decreased compared with those for groups fed 0 or 2.5% seed. No histopathology was associated with ingestion of 10% velvetleaf seed. The protein quality (protein efficiency ratio) of velvetleaf seed, although lower than that of casein, was higher than values reported in the literature for corn, wheat and soya. JF - Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association AU - Dugan, G M AU - Gumbmann, M R AD - Western Regional Research Center, US Department of Agriculture, Albany, CA 94710. Y1 - 1990/02// PY - 1990 DA - February 1990 SP - 95 EP - 99 VL - 28 IS - 2 SN - 0278-6915, 0278-6915 KW - Plant Proteins KW - 0 KW - Index Medicus KW - Rats, Inbred Strains KW - Rats KW - Eating KW - Drinking KW - Body Weight KW - Animals KW - Blood Chemical Analysis KW - Nutritive Value KW - Eye Diseases -- etiology KW - Organ Size KW - Male KW - Female KW - Plants, Toxic KW - Seeds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79773762?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Food+and+chemical+toxicology+%3A+an+international+journal+published+for+the+British+Industrial+Biological+Research+Association&rft.atitle=Toxicological+and+nutritional+evaluation+of+velvetleaf+seed%3A+subchronic+90-day+feeding+study+and+protein+efficiency+ratio+assay.&rft.au=Dugan%2C+G+M%3BGumbmann%2C+M+R&rft.aulast=Dugan&rft.aufirst=G&rft.date=1990-02-01&rft.volume=28&rft.issue=2&rft.spage=95&rft.isbn=&rft.btitle=&rft.title=Food+and+chemical+toxicology+%3A+an+international+journal+published+for+the+British+Industrial+Biological+Research+Association&rft.issn=02786915&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-06-27 N1 - Date created - 1990-06-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Fly pupae as attractant carriers for toxic baits for red imported fire ants (Hymenoptera: Formicidae). AN - 79711968; 2324379 AB - Eight laboratory-reared ant species were fed baits of house fly, Musca domestica L., pupae treated with hydramethylnon. Two fire ant species, Solenopsis invicta Buren and Solenopsis geminata (F.), and Pheidole morrissi (Forel) were killed; average percentage of mortality of the five other species was less than 20%. In contrast, all species that were fed the commercial fire ant bait containing hydramethylnon (Amdro) died or were adversely affected. In the field, applications of house fly pupae and eye gnat, Hippelates pusio Loew, pupae dipped in acetone solutions of fenoxycarb significantly reduced population indices of the red imported fire ant, S. invicta, compared with commercial formulations of fenoxycarb (Logic) and hydramethylnon (Amdro). Field observations showed that the pupae of either species can be carried or moved by one or two worker ants. The smooth, hard cuticle of the pupae make them easy to handle and apply with application equipment. The current cost of house fly pupae is considerably more than the cost of a granular carrier, pregel defatted corn grits. However, if mass-production methods reduce this price differential, fly pupae could become an effective and more species-specific fire ant bait carrier. JF - Journal of economic entomology AU - Williams, D F AU - Lofgren, C S AU - Vander Meer, R K AD - Insects Affecting Man and Animals Research Laboratory, USDA-ARS, Gainesville, Florida 32604. Y1 - 1990/02// PY - 1990 DA - February 1990 SP - 67 EP - 73 VL - 83 IS - 1 SN - 0022-0493, 0022-0493 KW - Carbamates KW - 0 KW - Drug Carriers KW - Insecticides KW - Phenylcarbamates KW - Pyrimidinones KW - hydramethylnon KW - J265GZ7MFJ KW - fenoxycarb KW - JEN0LSV1G9 KW - Index Medicus KW - Animals KW - Pupa KW - Houseflies KW - Ants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79711968?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+economic+entomology&rft.atitle=Fly+pupae+as+attractant+carriers+for+toxic+baits+for+red+imported+fire+ants+%28Hymenoptera%3A+Formicidae%29.&rft.au=Williams%2C+D+F%3BLofgren%2C+C+S%3BVander+Meer%2C+R+K&rft.aulast=Williams&rft.aufirst=D&rft.date=1990-02-01&rft.volume=83&rft.issue=1&rft.spage=67&rft.isbn=&rft.btitle=&rft.title=Journal+of+economic+entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-05-21 N1 - Date created - 1990-05-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Effects of diuron and fluometuron metabolites on the growth and fiber quality of cotton (Gossypium hirsutum). AN - 79706696; 2322667 JF - Bulletin of environmental contamination and toxicology AU - Moorman, T B AU - Koskinen, W C AD - Agricultural Research Service, USDA, Southern Weed Science Laboratory, Stoneville, MS 38776. Y1 - 1990/02// PY - 1990 DA - February 1990 SP - 260 EP - 267 VL - 44 IS - 2 SN - 0007-4861, 0007-4861 KW - Herbicides KW - 0 KW - Methylurea Compounds KW - Soil KW - fluometuron KW - 296378G1S8 KW - Diuron KW - 9I3SDS92WY KW - Index Medicus KW - Biotransformation KW - Soil -- analysis KW - Methylurea Compounds -- toxicity KW - Diuron -- metabolism KW - Herbicides -- metabolism KW - Diuron -- toxicity KW - Gossypium -- growth & development KW - Herbicides -- toxicity KW - Methylurea Compounds -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79706696?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+environmental+contamination+and+toxicology&rft.atitle=Effects+of+diuron+and+fluometuron+metabolites+on+the+growth+and+fiber+quality+of+cotton+%28Gossypium+hirsutum%29.&rft.au=Moorman%2C+T+B%3BKoskinen%2C+W+C&rft.aulast=Moorman&rft.aufirst=T&rft.date=1990-02-01&rft.volume=44&rft.issue=2&rft.spage=260&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+environmental+contamination+and+toxicology&rft.issn=00074861&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-05-18 N1 - Date created - 1990-05-18 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Strategies for control of toxoplasmosis. AN - 79596543; 2404929 JF - Journal of the American Veterinary Medical Association AU - Leighty, J C AD - USDA, Science Department, Washington, DC 20250. Y1 - 1990/01/15/ PY - 1990 DA - 1990 Jan 15 SP - 281 EP - 286 VL - 196 IS - 2 SN - 0003-1488, 0003-1488 KW - Index Medicus KW - Meat KW - Food Contamination -- prevention & control KW - Animals KW - Toxoplasmosis, Congenital -- prevention & control KW - Patient Education as Topic KW - Vaccination -- veterinary KW - Humans KW - Female KW - Pregnancy KW - Pregnancy Complications, Infectious -- prevention & control KW - Toxoplasmosis -- prevention & control KW - Toxoplasmosis, Animal -- prevention & control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79596543?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Veterinary+Medical+Association&rft.atitle=Strategies+for+control+of+toxoplasmosis.&rft.au=Leighty%2C+J+C&rft.aulast=Leighty&rft.aufirst=J&rft.date=1990-01-15&rft.volume=196&rft.issue=2&rft.spage=281&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Veterinary+Medical+Association&rft.issn=00031488&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-03-15 N1 - Date created - 1990-03-15 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Effect of vanadium, iodine and their interaction on growth, blood variables, liver trace elements and thyroid status indices in rats. AN - 80341563; 2095166 AB - A two-factor, two-by-three factorially arranged experiment was performed to ascertain whether iodine affects the response of rats to vanadium deprivation. Male weanling Wistar-Kyoto rats were fed a 16% casein 68% acid-washed ground corn diet for 8 weeks. The variables were supplemental vanadium at 0 or 1 microgram/g and supplemental iodine at 0, 0.33 or 25 micrograms/g. Vanadium deprivation increased thyroid weight and thyroid weight/body weight ratio and decreased the concentration of vanadium in liver. Vanadium and iodine interacted such that, as dietary iodine was increased, plasma glucose increased in the vanadium-deficient rats but decreased in the vanadium-supplemented rats. Also, as dietary iodine was increased, thyroid peroxidase activity decreased; the decrease was more marked in the vanadium-supplemented than the vanadium-deprived rats. The findings suggest that vanadium may have a physiological role affecting iodine metabolism and thyroid function. JF - Magnesium and trace elements AU - Uthus, E O AU - Nielsen, F H AD - United States Department of Agriculture, Grand Forks Human Nutrition Research Center, N. Dak. Y1 - 1990 PY - 1990 DA - 1990 SP - 219 EP - 226 VL - 9 IS - 4 SN - 1015-3845, 1015-3845 KW - Trace Elements KW - 0 KW - Vanadium KW - 00J9J9XKDE KW - Iodine KW - 9679TC07X4 KW - Iodide Peroxidase KW - EC 1.11.1.8 KW - Index Medicus KW - Animals KW - Drug Interactions KW - Rats, Inbred WKY KW - Liver -- metabolism KW - Blood -- drug effects KW - Trace Elements -- metabolism KW - Rats KW - Thyroid Gland -- drug effects KW - Liver -- drug effects KW - Iodide Peroxidase -- antagonists & inhibitors KW - Diet KW - Growth -- drug effects KW - Male KW - Iodine -- pharmacology KW - Vanadium -- pharmacology KW - Iodine -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80341563?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Magnesium+and+trace+elements&rft.atitle=Effect+of+vanadium%2C+iodine+and+their+interaction+on+growth%2C+blood+variables%2C+liver+trace+elements+and+thyroid+status+indices+in+rats.&rft.au=Uthus%2C+E+O%3BNielsen%2C+F+H&rft.aulast=Uthus&rft.aufirst=E&rft.date=1990-01-01&rft.volume=9&rft.issue=4&rft.spage=219&rft.isbn=&rft.btitle=&rft.title=Magnesium+and+trace+elements&rft.issn=10153845&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-07-10 N1 - Date created - 1991-07-10 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - The potential for the toxic principles of Astragalus and related plants to appear in meat and milk. AN - 80332328; 2128722 JF - Veterinary and human toxicology AU - James, L F AU - Molyneux, R J AU - Panter, K E AD - USDA-ARS Poisonous Plant Research Lab, Logan, UT 84321. Y1 - 1990 PY - 1990 DA - 1990 SP - 104 EP - 109 VL - 32 Suppl SN - 0145-6296, 0145-6296 KW - Alkaloids KW - 0 KW - Toxins, Biological KW - Mannosidases KW - EC 3.2.1.- KW - Selenium KW - H6241UJ22B KW - Swainsonine KW - RSY4RK37KQ KW - Index Medicus KW - Selenium -- analysis KW - Animals KW - Selenium -- poisoning KW - Selenium -- pharmacokinetics KW - Humans KW - Plant Poisoning -- veterinary KW - Mannosidases -- antagonists & inhibitors KW - Alkaloids -- pharmacokinetics KW - Alkaloids -- analysis KW - Alkaloids -- poisoning KW - Structure-Activity Relationship KW - Plants, Toxic KW - Toxins, Biological -- pharmacokinetics KW - Milk -- metabolism KW - Food Contamination KW - Meat -- analysis KW - Toxins, Biological -- analysis KW - Milk -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80332328?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Veterinary+and+human+toxicology&rft.atitle=The+potential+for+the+toxic+principles+of+Astragalus+and+related+plants+to+appear+in+meat+and+milk.&rft.au=James%2C+L+F%3BMolyneux%2C+R+J%3BPanter%2C+K+E&rft.aulast=James&rft.aufirst=L&rft.date=1990-01-01&rft.volume=32+Suppl&rft.issue=&rft.spage=104&rft.isbn=&rft.btitle=&rft.title=Veterinary+and+human+toxicology&rft.issn=01456296&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-06-13 N1 - Date created - 1991-06-13 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Cyclopiazonic acid: toxicity and tissue distribution. AN - 80332189; 2092402 JF - Veterinary and human toxicology AU - Norred, W P AD - Toxicology and Mycotoxins Research Unit, Richard B Russell Agricultural Research Center, ARS/USDA, Athens, GA 30613. Y1 - 1990 PY - 1990 DA - 1990 SP - 20 EP - 5; discussion 25-6 VL - 32 Suppl SN - 0145-6296, 0145-6296 KW - Indoles KW - 0 KW - Mycotoxins KW - cyclopiazonic acid KW - X9TLY4580Z KW - Index Medicus KW - Animals KW - Muscles -- metabolism KW - Meat -- analysis KW - Tissue Distribution KW - Indoles -- pharmacokinetics KW - Indoles -- toxicity KW - Mycotoxins -- pharmacokinetics KW - Mycotoxins -- toxicity KW - Mycotoxins -- analysis KW - Indoles -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80332189?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Veterinary+and+human+toxicology&rft.atitle=Cyclopiazonic+acid%3A+toxicity+and+tissue+distribution.&rft.au=Norred%2C+W+P&rft.aulast=Norred&rft.aufirst=W&rft.date=1990-01-01&rft.volume=32+Suppl&rft.issue=&rft.spage=20&rft.isbn=&rft.btitle=&rft.title=Veterinary+and+human+toxicology&rft.issn=01456296&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-06-13 N1 - Date created - 1991-06-13 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Pyrrolizidine alkaloids in milk: thresholds of intoxication. AN - 80331025; 2092411 JF - Veterinary and human toxicology AU - Molyneux, R J AU - James, L F AD - Western Regional Research Center, USDA, Albany, CA 94710. Y1 - 1990 PY - 1990 DA - 1990 SP - 94 EP - 103 VL - 32 Suppl SN - 0145-6296, 0145-6296 KW - Pyrrolizidine Alkaloids KW - 0 KW - Index Medicus KW - Molecular Structure KW - Animals KW - Humans KW - Liver -- drug effects KW - Pyrrolizidine Alkaloids -- poisoning KW - Food Contamination KW - Pyrrolizidine Alkaloids -- analysis KW - Milk -- chemistry KW - Pyrrolizidine Alkaloids -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80331025?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Veterinary+and+human+toxicology&rft.atitle=Pyrrolizidine+alkaloids+in+milk%3A+thresholds+of+intoxication.&rft.au=Molyneux%2C+R+J%3BJames%2C+L+F&rft.aulast=Molyneux&rft.aufirst=R&rft.date=1990-01-01&rft.volume=32+Suppl&rft.issue=&rft.spage=94&rft.isbn=&rft.btitle=&rft.title=Veterinary+and+human+toxicology&rft.issn=01456296&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-06-13 N1 - Date created - 1991-06-13 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Conium, Lupinus, and Nicotiana alkaloids: fetal effects and the potential for residues in milk. AN - 80331001; 2092410 JF - Veterinary and human toxicology AU - Panter, K E AU - Keeler, R F AD - USDA-ARS Poisonous Plant Research Laboratory, Logan, Utah 84321. Y1 - 1990 PY - 1990 DA - 1990 SP - 89 EP - 93; discussion 93-4 VL - 32 Suppl SN - 0145-6296, 0145-6296 KW - Alkaloids KW - 0 KW - Index Medicus KW - Plants, Toxic KW - Animals KW - Humans KW - Tobacco KW - Fetal Diseases -- chemically induced KW - Food Contamination KW - Abnormalities, Drug-Induced -- etiology KW - Alkaloids -- analysis KW - Milk -- chemistry KW - Alkaloids -- poisoning UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80331001?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Veterinary+and+human+toxicology&rft.atitle=Conium%2C+Lupinus%2C+and+Nicotiana+alkaloids%3A+fetal+effects+and+the+potential+for+residues+in+milk.&rft.au=Panter%2C+K+E%3BKeeler%2C+R+F&rft.aulast=Panter&rft.aufirst=K&rft.date=1990-01-01&rft.volume=32+Suppl&rft.issue=&rft.spage=89&rft.isbn=&rft.btitle=&rft.title=Veterinary+and+human+toxicology&rft.issn=01456296&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-06-13 N1 - Date created - 1991-06-13 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Toxins from Fusarium moniliforme, a common fungus in corn. AN - 80329315; 2092406 JF - Veterinary and human toxicology AU - Voss, K A AD - Toxicology and Mycotoxins Research Unit, Agricultural Research Service, USDA, Athens, GA 30613. Y1 - 1990 PY - 1990 DA - 1990 SP - 57 EP - 63 VL - 32 Suppl SN - 0145-6296, 0145-6296 KW - Mycotoxins KW - 0 KW - Index Medicus KW - Animals KW - Humans KW - Fusarium KW - Zea mays -- microbiology KW - Mycotoxins -- biosynthesis KW - Liver -- drug effects KW - Mycotoxins -- toxicity KW - Mycotoxins -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80329315?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Veterinary+and+human+toxicology&rft.atitle=Toxins+from+Fusarium+moniliforme%2C+a+common+fungus+in+corn.&rft.au=Voss%2C+K+A&rft.aulast=Voss&rft.aufirst=K&rft.date=1990-01-01&rft.volume=32+Suppl&rft.issue=&rft.spage=57&rft.isbn=&rft.btitle=&rft.title=Veterinary+and+human+toxicology&rft.issn=01456296&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-06-13 N1 - Date created - 1991-06-13 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Spirosolane-containing Solanum species and induction of congenital craniofacial malformations. AN - 80305549; 2080514 AB - Comparison by GC analysis of purified alkaloid extracts of Solanum species revealed no measurable free solasodine, other spirosolanes, or any non-spirosolane steroidal alkaloid aglycones in unhydrolyzed total alkaloid fractions of fruit of Solanum elaeagnifolium Cav. (silverleaf nightshade), Solanum sarrachoides (S. villosum Lam.--hairy nightshade), Solanum dulcamara L. (European bittersweet nightshade) or Solanum melongena L. (eggplant). All alkaloidal material was apparently present as glycoside. Conversely, sprouts of Solanum tuberosum L. (potato) contained 67% of its alkaloids as glycosides, which was freed only upon hydrolysis with the remaining 33% present as free solanidine. GC/MS analysis of hydrolysates of purified extracts of the test Solanum species revealed that solasodine was a principal or sole aglycone of the alkaloid glycosides in each of the test species except Solanum tuberosum. In the latter, solanidine was the sole aglycone. Among the test species, exclusive of S. tuberosum, only S. dulcamara contained aglycones other than solasodine. In addition to solasodine, S. dulcamara contained appreciable amounts of an unknown spirosolane, an aglycone provisionally identified as soladulcidine. The induction of congenital craniofacial malformations in hamsters by high oral doses of the four Solanum species that contained mainly solasodine glycosides--S. elaeagnifolium, S. dulcamara, S. sarrachoides and S. melongena was compared to inductions of malformations by Solanum tuberosum, that contained mainly solanidane glycosides. Compared to controls, Solanum elaeagnifolium and Solanum dulcamara fruit both induced a high percentage incidence of deformed litters (20.4 and 16.3, respectively) that was statistically significant (P less than 0.001 level) while percentage incidence of deformed litters induced by Solanum sarrachoides and Solanum melongena fruit (9.5 and 7.6 respectively) were both higher than controls (3.4%), in neither case was the incidence statistically significant (P less than .05). Deformed litter incidence induced by sprouts of Solanum tuberosum was 24.0%, (P less than 0.001). JF - Toxicon : official journal of the International Society on Toxinology AU - Keeler, R F AU - Baker, D C AU - Gaffield, W AD - United States Department of Agriculture, Poisonous Plant Research Laboratory, Logan, UT 84321. Y1 - 1990 PY - 1990 DA - 1990 SP - 873 EP - 884 VL - 28 IS - 8 SN - 0041-0101, 0041-0101 KW - Glycosides KW - 0 KW - Solanaceous Alkaloids KW - Teratogens KW - tomatidine KW - 2B73S48786 KW - Tomatine KW - 31U6547O08 KW - solasodine KW - L40Y453Y96 KW - Index Medicus KW - Animals KW - Solanum tuberosum -- analysis KW - Gas Chromatography-Mass Spectrometry KW - Female KW - Pregnancy KW - Cricetinae KW - Glycosides -- toxicity KW - Plants, Toxic -- analysis KW - Tomatine -- chemistry KW - Tomatine -- toxicity KW - Glycosides -- chemistry KW - Craniofacial Dysostosis -- pathology KW - Solanaceous Alkaloids -- chemistry KW - Tomatine -- analogs & derivatives KW - Solanaceous Alkaloids -- toxicity KW - Craniofacial Dysostosis -- chemically induced UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80305549?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicon+%3A+official+journal+of+the+International+Society+on+Toxinology&rft.atitle=Spirosolane-containing+Solanum+species+and+induction+of+congenital+craniofacial+malformations.&rft.au=Keeler%2C+R+F%3BBaker%2C+D+C%3BGaffield%2C+W&rft.aulast=Keeler&rft.aufirst=R&rft.date=1990-01-01&rft.volume=28&rft.issue=8&rft.spage=873&rft.isbn=&rft.btitle=&rft.title=Toxicon+%3A+official+journal+of+the+International+Society+on+Toxinology&rft.issn=00410101&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-05-01 N1 - Date created - 1991-05-01 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Multiple congenital contractures (MCC) and cleft palate induced in goats by ingestion of piperidine alkaloid-containing plants: reduction in fetal movement as the probable cause. AN - 79925984; 2381024 AB - Fetal movement, observed by ultrasound imaging, was significantly reduced (P less than or equal to 0.001) in pregnant goats gavaged with Conium seed and Nicotiana glauca and temporarily reduced with fresh Conium plant. Conium seed and Nicotiana glauca induced cleft palate and multiple congenital contractures in 100% of the kids born to pregnant goats gavaged with these plants. Multiple congenital contractures included torticollis, scoliosis, lordosis, arthrogryposis, rib cage anomalies, over extension, and flexure and rigidity of the joints. However, in goats gavaged with fresh Conium plant, fetal movement was inhibited for only about 5 hours after each individual dosage and gradually returned to control levels 12 hours after dosing. Fetal malformations in this group were limited from modest to moderate contractures of the front limbs, which resolved by 8-10 weeks post partum. No cleft palates were induced. Fetal movement was not inhibited in goats fed Lupinus caudatus and no cleft palates or multiple congenital contractures were induced in their offspring. The duration of the reduction in fetal movement appears to be an important factor in the severity and permanence of the deformities, particularly with cleft palate, spinal column defects, and severe joint deviation and fixation. JF - Journal of toxicology. Clinical toxicology AU - Panter, K E AU - Bunch, T D AU - Keeler, R F AU - Sisson, D V AU - Callan, R J AD - USDA/ARS/Poisonous Plant Research Laboratory, Logan, Utah. Y1 - 1990 PY - 1990 DA - 1990 SP - 69 EP - 83 VL - 28 IS - 1 SN - 0731-3810, 0731-3810 KW - Alkaloids KW - 0 KW - Piperidines KW - Abridged Index Medicus KW - Index Medicus KW - Administration, Oral KW - Maternal-Fetal Exchange KW - Animals KW - Goats KW - Female KW - Pregnancy KW - Cleft Palate -- chemically induced KW - Fetal Movement -- drug effects KW - Piperidines -- toxicity KW - Alkaloids -- toxicity KW - Abnormalities, Drug-Induced -- etiology KW - Abnormalities, Multiple -- etiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79925984?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+toxicology.+Clinical+toxicology&rft.atitle=Multiple+congenital+contractures+%28MCC%29+and+cleft+palate+induced+in+goats+by+ingestion+of+piperidine+alkaloid-containing+plants%3A+reduction+in+fetal+movement+as+the+probable+cause.&rft.au=Panter%2C+K+E%3BBunch%2C+T+D%3BKeeler%2C+R+F%3BSisson%2C+D+V%3BCallan%2C+R+J&rft.aulast=Panter&rft.aufirst=K&rft.date=1990-01-01&rft.volume=28&rft.issue=1&rft.spage=69&rft.isbn=&rft.btitle=&rft.title=Journal+of+toxicology.+Clinical+toxicology&rft.issn=07313810&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-09-12 N1 - Date created - 1990-09-12 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Repin, a sesquiterpene lactone from Acroptilon repens possessing exceptional biological activity. AN - 79805968; 2348202 AB - Consumption of Russian knapweed (Acroptilon repens) by horses results in the necrosis of neural cells in the substantia nigra. Repin, one of the sesquiterpene lactones found in Russian knapweed, has been shown to possess high toxicity toward chick embryo sensory neurons. The possible causal relationship between repin and equine nigropallidial encephalomacia disease prompted a more complete structural assignment of repin, which was accomplished by X-ray and 1H-nmr analyses. JF - Journal of natural products AU - Stevens, K L AU - Riopelle, R J AU - Wong, R Y AD - United States Department of Agriculture, Western Regional Research Center, Albany, California 94710. PY - 1990 SP - 218 EP - 221 VL - 53 IS - 1 SN - 0163-3864, 0163-3864 KW - Lactones KW - 0 KW - Sesquiterpenes KW - repin KW - 11024-67-2 KW - Index Medicus KW - Molecular Structure KW - Animals KW - Chick Embryo KW - Horses KW - Magnetic Resonance Spectroscopy KW - Plants -- analysis KW - Lactones -- isolation & purification KW - Sesquiterpenes -- toxicity KW - Lactones -- toxicity KW - Sesquiterpenes -- isolation & purification UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79805968?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+natural+products&rft.atitle=Repin%2C+a+sesquiterpene+lactone+from+Acroptilon+repens+possessing+exceptional+biological+activity.&rft.au=Stevens%2C+K+L%3BRiopelle%2C+R+J%3BWong%2C+R+Y&rft.aulast=Stevens&rft.aufirst=K&rft.date=1990-01-01&rft.volume=53&rft.issue=1&rft.spage=218&rft.isbn=&rft.btitle=&rft.title=Journal+of+natural+products&rft.issn=01633864&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-07-06 N1 - Date created - 1990-07-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Chronology of patulin-induced alterations in membrane function of cultured renal cells, LLC-PK. AN - 79588787; 2153317 AB - In a previous study we compared the effects of patulin (PAT) and ouabain, a specific inhibitor of the Na(+)-K+ ATPase, and found significant differences with regard to the kinetics of Na+ influx and K+ efflux, and sulfhydryl reactivity in LLC-PK1 cells. The purpose of the present study was to determine the relationship between Na+ influx, K+ efflux, membrane potential ([3H]tetraphenylphosphonium accumulation), cellular viability [lactate dehydrogenase (LDH) release], and changes in cell morphology (blebs). The effects of PAT are concentration and time dependent. At concentrations of PAT above 10 microM there is a transient increase in intracellular electronegativity (less than 1 hr) followed by a sustained depolarization (greater than 1 hr) which is correlated with complete Na+ influx, K+ efflux, total LDH release, and bleb formation. However, at PAT concentrations of 5-10 microM there is a sustained increased intracellular electronegativity (4-8 hr) which is associated with partial Na+ influx and K+ efflux, no significant LDH release, and relatively few blebs. The hyperpolarizing effect may be a result of increased permeability to K+ relative to Na+. At times and concentrations which result in increased intracellular electronegativity, PAT has no effect on [3H]ouabain binding and thus increased Na+/K+ pump turnover does not seem to be the cause of the transient hyperpolarizing effect of PAT. These results are consistent with the hypothesis that PAT causes alterations in plasma membrane permeability which favor K+ efflux relative to Na+ influx. The toxic effects of PAT are irreversible in LLC-PK1 cells after even short pretreatment with PAT. The primary toxic lesion appears to be at some level other than that involving inhibition of macromolecular synthesis, perhaps the plasma membrane itself. JF - Toxicology and applied pharmacology AU - Riley, R T AU - Hinton, D M AU - Showker, J L AU - Rigsby, W AU - Norred, W P AD - Russell Research Center, United States Department of Agriculture, Athens, Georgia 30613. Y1 - 1990/01// PY - 1990 DA - January 1990 SP - 128 EP - 141 VL - 102 IS - 1 SN - 0041-008X, 0041-008X KW - Indicators and Reagents KW - 0 KW - Onium Compounds KW - Organophosphorus Compounds KW - Potassium Channels KW - Pyrans KW - Sodium Channels KW - Ouabain KW - 5ACL011P69 KW - Patulin KW - 95X2BV4W8R KW - L-Lactate Dehydrogenase KW - EC 1.1.1.27 KW - tetraphenylphosphonium KW - U9IF5Y5IND KW - Index Medicus KW - Electron Probe Microanalysis KW - Animals KW - Cell Membrane -- drug effects KW - Dose-Response Relationship, Drug KW - Cell Line -- drug effects KW - Membrane Potentials -- physiology KW - Sodium Channels -- metabolism KW - Rabbits KW - Cells, Cultured -- drug effects KW - Potassium Channels -- drug effects KW - Onium Compounds -- pharmacokinetics KW - Organophosphorus Compounds -- pharmacokinetics KW - Potassium Channels -- metabolism KW - Ouabain -- pharmacokinetics KW - Cell Survival -- drug effects KW - Cells, Cultured -- metabolism KW - Membrane Potentials -- drug effects KW - Cell Membrane -- metabolism KW - Time Factors KW - Sodium Channels -- drug effects KW - Ouabain -- pharmacology KW - Cell Survival -- physiology KW - L-Lactate Dehydrogenase -- metabolism KW - Kidney -- metabolism KW - Patulin -- toxicity KW - Kidney -- drug effects KW - Pyrans -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79588787?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology+and+applied+pharmacology&rft.atitle=Chronology+of+patulin-induced+alterations+in+membrane+function+of+cultured+renal+cells%2C+LLC-PK.&rft.au=Riley%2C+R+T%3BHinton%2C+D+M%3BShowker%2C+J+L%3BRigsby%2C+W%3BNorred%2C+W+P&rft.aulast=Riley&rft.aufirst=R&rft.date=1990-01-01&rft.volume=102&rft.issue=1&rft.spage=128&rft.isbn=&rft.btitle=&rft.title=Toxicology+and+applied+pharmacology&rft.issn=0041008X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1990-02-22 N1 - Date created - 1990-02-22 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - CPAPER T1 - Rural Employment in the Year 2000: An Analysis of the BLS Employment Projections T2 - Rural Sociological Society AN - 61731059; 90S23901 AB - An analysis of US Bureau of Labor Statistics' employment projections for the period 1988-2000 is drawn on to critically examine the labor shortage & skills mismatch themes that have dominated recent policy debate on education & training. Focus is on the claims of the Hudson Instit's Workforce 2000 report, the most quoted source of data on future labor shortages & skills mismatches. It is shown that the Hudson Instit account is simplistic & methodologically flawed in a number of important ways, including: (1) very high levels of occupational aggregation & selective use of skill indicators without sufficient justification, (2) no data on the wage levels of future jobs, (3) no historical data for comparison purposes, (4) no attention to the industry dimension of the future job structure, & (5) no attention to the spatial/regional impact of trends in job skills & workforce quality. This last point is explored in detail through metropolitan/nonmetropolitan comparisons of projected job skill trends. It is shown that these trends differ substantially in metropolitan & nonmetropolitan areas & are likely to enhance the already serious rural disadvantage in job opportunities. Implications for the role of education & training in rural areas are discussed. JF - Rural Sociological Society AU - Teixeira, Ruy A AU - Mishel, Lawrence Y1 - 1990///0, PY - 1990 DA - 0, 1990 KW - rural employment projections, education/training needs, Hudson Institute's Workforce 2000 report criticized KW - US Bureau of Labor Statistics data KW - Rural Population KW - Unemployment KW - United States of America KW - Employment KW - Rural Areas KW - proceeding KW - 0686: complex organization; modes of production, employment patterns, social division of labor KW - 0621: complex organization; jobs, work organization, workplaces, & unions KW - 1116: rural sociology and agriculture; rural sociology (village, agriculture) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/61731059?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Asocabs&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Rural+Sociological+Society&rft.atitle=Rural+Employment+in+the+Year+2000%3A+An+Analysis+of+the+BLS+Employment+Projections&rft.au=Teixeira%2C+Ruy+A%3BMishel%2C+Lawrence&rft.aulast=Teixeira&rft.aufirst=Ruy&rft.date=1990-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Rural+Sociological+Society&rft.issn=&rft_id=info:doi/ LA - English DB - Sociological Abstracts N1 - Date revised - 2009-03-10 N1 - Publication note - 1990 N1 - Last updated - 2016-09-28 ER - TY - CPAPER T1 - Worker Displacement in Rural Labor Markets: Economic Restructuring as a Source of Employment Insecurity T2 - Rural Sociological Society AN - 61712716; 90S23898 AB - Increased global competition, new automation technologies, & numerous plant closings suggest that many US workers found themselves suddenly without jobs in the 1980s. Here, investigated is whether rural workers are at a relatively high risk of being displaced from their jobs, & how the personal losses resulting from displacement differ for rural & urban workers. Information on job displacement & migration from the Jan & Mar 1986 & 1988 Current Population Surveys reveals that many nonmetropolitan workers were displaced from full-time jobs in 1981 & 1986; they faced a higher risk of job displacement than did metropolitan workers, & also suffered larger economic losses. Regression analysis indicates that much of the rural disadvantage reflects labor market conditions (eg, industrial mix) & demographic characteristics (eg, lower education levels) rather than rurality per se. Though the problem of job displacement has been a greater source of economic insecurity for nonmetropolitan workers than for metropolitan in recent years, policies to diversify local economies & upgrade human capital should reduce the costs of rural displacement. JF - Rural Sociological Society AU - Swaim, Paul L Y1 - 1990///0, PY - 1990 DA - 0, 1990 KW - job displacement risk, rural vs urban workers, US KW - 1986-1988 Current Population Surveys KW - Risk KW - Rural Urban Differences KW - Unemployment KW - United States of America KW - Plant Closure KW - proceeding KW - 0686: complex organization; modes of production, employment patterns, social division of labor KW - 1116: rural sociology and agriculture; rural sociology (village, agriculture) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/61712716?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Asocabs&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Rural+Sociological+Society&rft.atitle=Worker+Displacement+in+Rural+Labor+Markets%3A+Economic+Restructuring+as+a+Source+of+Employment+Insecurity&rft.au=Swaim%2C+Paul+L&rft.aulast=Swaim&rft.aufirst=Paul&rft.date=1990-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Rural+Sociological+Society&rft.issn=&rft_id=info:doi/ LA - English DB - Sociological Abstracts N1 - Date revised - 2009-03-10 N1 - Publication note - 1990 N1 - Last updated - 2016-09-28 ER - TY - CPAPER T1 - Some Ideas for Rural Development: Implications from a Study of Growth and Stability of Earnings in Rural Economies T2 - Rural Sociological Society AN - 61698774; 90S23890 AB - An investigation of the characteristics of rural US counties & commuting zones that performed better & worse in terms of growth & stability of earnings between 1979 & 1987. Factors associated with particularly good & particularly poor performance are identified, & lessons that can be learned by examining places with substantial economic restructuring are discussed. JF - Rural Sociological Society AU - Sears, David W AU - Redman, John AU - Kusmin, Lorin Y1 - 1990///0, PY - 1990 DA - 0, 1990 KW - rural economic performance, cross-county comparison, US KW - 1979-1987 KW - Rural Development KW - United States of America KW - Performance KW - Economic Systems KW - proceeding KW - 0715: social change and economic development; social change & economic development KW - 1116: rural sociology and agriculture; rural sociology (village, agriculture) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/61698774?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Asocabs&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Rural+Sociological+Society&rft.atitle=Some+Ideas+for+Rural+Development%3A+Implications+from+a+Study+of+Growth+and+Stability+of+Earnings+in+Rural+Economies&rft.au=Sears%2C+David+W%3BRedman%2C+John%3BKusmin%2C+Lorin&rft.aulast=Sears&rft.aufirst=David&rft.date=1990-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Rural+Sociological+Society&rft.issn=&rft_id=info:doi/ LA - English DB - Sociological Abstracts N1 - Date revised - 2009-03-10 N1 - Publication note - 1990 N1 - Last updated - 2016-09-28 ER - TY - JOUR T1 - Riparian area management; riparian and wetland classification review AN - 52335924; 2000-052872 JF - Technical Reference - U. S. Department of the Interior, Bureau of Land Management Service Center AU - Gebhardt, Karl AU - Leonard, Steve AU - Staidl, George AU - Prichard, Don Y1 - 1990 PY - 1990 DA - 1990 SP - 56 PB - U. S. Department of the Interior, Bureau of Land Management Service Center, Denver, CO KW - soils KW - protection KW - succession KW - terrestrial environment KW - landform description KW - water management KW - biogeography KW - vegetation KW - habitat KW - spatial variations KW - riparian environment KW - natural resources KW - wetlands KW - land management KW - classification KW - fluvial features KW - paludal environment KW - ecology KW - climate KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52335924?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Gebhardt%2C+Karl%3BLeonard%2C+Steve%3BStaidl%2C+George%3BPrichard%2C+Don&rft.aulast=Gebhardt&rft.aufirst=Karl&rft.date=1990-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Riparian+area+management%3B+riparian+and+wetland+classification+review&rft.title=Riparian+area+management%3B+riparian+and+wetland+classification+review&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 48 N1 - PubXState - CO N1 - Document feature - illus. N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - #04988 N1 - SubjectsTermNotLitGenreText - biogeography; classification; climate; ecology; fluvial features; habitat; land management; landform description; natural resources; paludal environment; protection; riparian environment; soils; spatial variations; succession; terrestrial environment; vegetation; water management; wetlands ER - TY - JOUR T1 - Measurement of soil water content AN - 50607471; 1991-010730 JF - Remote Sensing Reviews AU - Baker, John M A2 - Goel, Narendra S. A2 - Norman, John M. Y1 - 1990 PY - 1990 DA - 1990 SP - 263 EP - 279 PB - Harwood Academic Publishers VL - 5 IS - 1 SN - 0275-7257, 0275-7257 KW - soils KW - moisture KW - water regimes KW - applications KW - remote sensing KW - measurement KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50607471?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Remote+Sensing+Reviews&rft.atitle=Measurement+of+soil+water+content&rft.au=Baker%2C+John+M&rft.aulast=Baker&rft.aufirst=John&rft.date=1990-01-01&rft.volume=5&rft.issue=1&rft.spage=263&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+Reviews&rft.issn=02757257&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1991-01-01 N1 - Number of references - 42 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - applications; measurement; moisture; remote sensing; soils; water regimes ER - TY - JOUR T1 - Development and application of a method to estimate short-term alpine sediment transfer in the Colorado Front Range, U.S.A. AN - 50561162; 1991-041889 JF - Mountain Research and Development AU - Summer, Rebecca M Y1 - 1990 PY - 1990 DA - 1990 SP - 321 EP - 332 PB - International Mountain Society, Boulder, CO VL - 10 IS - 4 SN - 0276-4741, 0276-4741 KW - United States KW - methods KW - Mummy Range KW - Front Range KW - transport KW - sedimentary petrology KW - sedimentation KW - Colorado KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50561162?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mountain+Research+and+Development&rft.atitle=Development+and+application+of+a+method+to+estimate+short-term+alpine+sediment+transfer+in+the+Colorado+Front+Range%2C+U.S.A.&rft.au=Summer%2C+Rebecca+M&rft.aulast=Summer&rft.aufirst=Rebecca&rft.date=1990-01-01&rft.volume=10&rft.issue=4&rft.spage=321&rft.isbn=&rft.btitle=&rft.title=Mountain+Research+and+Development&rft.issn=02764741&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1991-01-01 N1 - Number of references - 66 N1 - PubXState - CO N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Colorado; Front Range; methods; Mummy Range; sedimentary petrology; sedimentation; transport; United States ER - TY - JOUR T1 - Argillic horizon formation in late Wisconsinan eolian materials in Southwest Colorado, U.S.A AN - 50310225; 1993-042761 JF - Proceedings of the International Working Meeting on Soil Micromorphology AU - Nettleton, W D AU - Price, A B AU - Bowman, G A A2 - Douglas, Lowell A. Y1 - 1990 PY - 1990 DA - 1990 SP - 149 EP - 154 PB - [Sub-Commission of Soil Micromorphology of International Society of Soil Science], [Paris] VL - 8 KW - upper Wisconsinan KW - United States KW - soils KW - clay KW - Quaternary KW - micromorphology KW - clastic sediments KW - southwestern Colorado KW - Aridisols KW - Wisconsinan KW - upper Pleistocene KW - Cenozoic KW - transport KW - Western U.S. KW - sediments KW - parent materials KW - Pleistocene KW - horizons KW - wind transport KW - Colorado KW - Mollisols KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50310225?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+International+Working+Meeting+on+Soil+Micromorphology&rft.atitle=Argillic+horizon+formation+in+late+Wisconsinan+eolian+materials+in+Southwest+Colorado%2C+U.S.A&rft.au=Nettleton%2C+W+D%3BPrice%2C+A+B%3BBowman%2C+G+A&rft.aulast=Nettleton&rft.aufirst=W&rft.date=1990-01-01&rft.volume=8&rft.issue=&rft.spage=149&rft.isbn=0444883029&rft.btitle=&rft.title=Proceedings+of+the+International+Working+Meeting+on+Soil+Micromorphology&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - VIIIth international working meeting of Soil micromorphology N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from PASCAL, Institute de l'Information Scientifique et Technique, Vandoeuvre-les-Nancy, France N1 - Date revised - 1993-01-01 N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Elsevier Sci. Pub. N1 - Last updated - 2012-06-07 N1 - CODEN - #00176 N1 - SubjectsTermNotLitGenreText - Aridisols; Cenozoic; clastic sediments; clay; Colorado; horizons; micromorphology; Mollisols; parent materials; Pleistocene; Quaternary; sediments; soils; southwestern Colorado; transport; United States; upper Pleistocene; upper Wisconsinan; Western U.S.; wind transport; Wisconsinan ER - TY - JOUR T1 - Micromorphology and classification of secondary calcium carbonate accumulations that surround or occur on the undersides of coarse fragments in Idaho (U.S.A.) AN - 50308085; 1993-042782 JF - Proceedings of the International Working Meeting on Soil Micromorphology AU - Blank, R R AU - Fosberg, M A A2 - Douglas, Lowell A. Y1 - 1990 PY - 1990 DA - 1990 SP - 341 EP - 346 PB - [Sub-Commission of Soil Micromorphology of International Society of Soil Science], [Paris] VL - 8 KW - United States KW - soils KW - Idaho KW - micromorphology KW - coarse-grained materials KW - Western U.S. KW - classification KW - calcium carbonate KW - Aridisols KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50308085?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+International+Working+Meeting+on+Soil+Micromorphology&rft.atitle=Micromorphology+and+classification+of+secondary+calcium+carbonate+accumulations+that+surround+or+occur+on+the+undersides+of+coarse+fragments+in+Idaho+%28U.S.A.%29&rft.au=Blank%2C+R+R%3BFosberg%2C+M+A&rft.aulast=Blank&rft.aufirst=R&rft.date=1990-01-01&rft.volume=8&rft.issue=&rft.spage=341&rft.isbn=0444883029&rft.btitle=&rft.title=Proceedings+of+the+International+Working+Meeting+on+Soil+Micromorphology&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - VIIIth international working meeting of Soil micromorphology N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from PASCAL, Institute de l'Information Scientifique et Technique, Vandoeuvre-les-Nancy, France N1 - Date revised - 1993-01-01 N1 - Number of references - 10 N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Elsevier Sci. Pub. N1 - Last updated - 2012-06-07 N1 - CODEN - #00176 N1 - SubjectsTermNotLitGenreText - Aridisols; calcium carbonate; classification; coarse-grained materials; Idaho; micromorphology; soils; United States; Western U.S. ER - TY - JOUR T1 - Effect of long-term cultivation on aggregate stability, organic carbon distribution, and porosity of two soil series AN - 50298065; 1993-042825 JF - Proceedings of the International Working Meeting on Soil Micromorphology AU - Livingston, S J AU - Norton, L D AU - West, L T A2 - Douglas, Lowell A. Y1 - 1990 PY - 1990 DA - 1990 SP - 89 EP - 95 PB - [Sub-Commission of Soil Micromorphology of International Society of Soil Science], [Paris] VL - 8 KW - soils KW - organic materials KW - aggregate KW - density KW - micromorphology KW - agriculture KW - porosity KW - Alfisols KW - organic compounds KW - carbon KW - organic carbon KW - erodibility KW - Mollisols KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50298065?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+International+Working+Meeting+on+Soil+Micromorphology&rft.atitle=Effect+of+long-term+cultivation+on+aggregate+stability%2C+organic+carbon+distribution%2C+and+porosity+of+two+soil+series&rft.au=Livingston%2C+S+J%3BNorton%2C+L+D%3BWest%2C+L+T&rft.aulast=Livingston&rft.aufirst=S&rft.date=1990-01-01&rft.volume=8&rft.issue=&rft.spage=89&rft.isbn=0444883029&rft.btitle=&rft.title=Proceedings+of+the+International+Working+Meeting+on+Soil+Micromorphology&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - VIIIth international working meeting of Soil micromorphology N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from PASCAL, Institute de l'Information Scientifique et Technique, Vandoeuvre-les-Nancy, France N1 - Date revised - 1993-01-01 N1 - Number of references - 7 N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Elsevier Sci. Pub. N1 - Last updated - 2012-06-07 N1 - CODEN - #00176 N1 - SubjectsTermNotLitGenreText - aggregate; agriculture; Alfisols; carbon; density; erodibility; micromorphology; Mollisols; organic carbon; organic compounds; organic materials; porosity; soils ER - TY - JOUR T1 - Comparison of the components used in several sediment yield models AN - 25595289; 2001-63-012524 (CE); 0110792 (EN) AB - Models are being developed to better understand the complex erosion processes that occur on agricultural watersheds. These models have been developed with different purposes or problems to solve and thus may require different equations, parameters, and assumptions. In order for a model to be used properly, a clear concept of the system a model is developed for must be understood by both model developers and eventual users. This research reviewed the methods used by CREAMS, SWRRB, EPIC, ANSWERS, and AGNPS to predict runoff and erosion. The research found that while most models use the SCS curve number method to predict runoff and various forms and parameters of the Universal Soil Loss Equation (USLE) to predict erosion, there is not a standard method of prediction for runoff and erosion used by the developers of models. Knowing similarities and differences between models would be important for users in applying a model and for researchers developing or modifying erosion models. The five models discussed in this research include the latest concepts as well as recently developed equations, all of which can be modified to improve the models as further research developments are made. JF - TRANS ASAE AU - Bingner, R L AD - USDA-Agricultural Research Service, Oxford, MS, USA PY - 1990 SP - 1229 EP - 1238 PB - American Society of Agricultural Engineers, 2950 Niles Road, St. Joseph, MI, 49085-9659, USA, [mailto:hq@asae.org], [URL:http://www.asae.org] VL - 33 IS - 4 SN - 0001-2351, 0001-2351 KW - Civil Engineering (CE); Environmental Engineering (EN) KW - Mathematical models KW - Erosion KW - Runoff KW - Similarity KW - Watersheds KW - Sediments KW - Article KW - EE 483:SOIL MECHANICS AND FOUNDATIONS (EN) KW - EE 444:WATER RESOURCES KW - EE 631:FLUID FLOW KW - EE 442:FLOOD CONTROL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/25595289?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=TRANS+ASAE&rft.atitle=Comparison+of+the+components+used+in+several+sediment+yield+models&rft.au=Bingner%2C+R+L&rft.aulast=Bingner&rft.aufirst=R&rft.date=1990-01-01&rft.volume=33&rft.issue=4&rft.spage=1229&rft.isbn=&rft.btitle=&rft.title=TRANS+ASAE&rft.issn=00012351&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 ER - TY - JOUR T1 - Comparison of estimates of snow input with a small alpine catchment AN - 25591574; 2001-63-033206 (CE); 2001-63-005453 (MT); 0112765 (EN) AB - We have used five methods to estimate the snow water equivalent input to the Glacier Lakes Ecosystem Experiments Site (GLEES) in south-central Wyoming during the winter 1987-1988 and to obtain an estimate of the errors. The methods are: (1) the Martinec and Rango degree-day method; (2) Wooldridge et al. method of determining the average yearly snowfall from tree morphology; (3) precipitation gage measurements from the Wyoming Water Research Center Snowy Range Observatory; (4) NADP collector data; (5) an independent estimate from snow core data from a small catchment in the GLESS. Estimated water input ranged from a low of 65 cm H sub(2)O (liquid water equivalent) for the precipitation gage to a high of 85 cm H sub(2)O for the Martinec and Rango method. An evaluation of the biases in the methods indicate that the true value may be nearer the high end of this range. JF - J HYDROL AU - Sommerfeld, R A AU - Musselman, R C AU - Wooldridge, G L AD - USDA Forest Service, Fort Collins, CO, USA PY - 1990 SP - 295 EP - 307 PB - Elsevier Science Publishing Co , Inc , P.O. Box 882, Madison Square Station, New York, NY, 10159-0882, USA, [mailto:usinfo-f@elsevier.com], [URL:http://www.elsevier.com] VL - 120 IS - 1-4 SN - 0022-1694, 0022-1694 KW - Civil Engineering (CE); Mechanical & Transportation Engineering (MT); Environmental Engineering (EN) KW - Precipitation KW - Equivalence KW - Gages KW - Catchments KW - Glaciers KW - Snowfall KW - Errors KW - Liquids KW - Trees KW - Observatories KW - Morphology KW - Ecosystems KW - Lakes KW - Accumulators KW - Article KW - EE 454:ENVIRONMENTAL ENGINEERING KW - EE 443:METEOROLOGY KW - EE 444:WATER RESOURCES KW - EE 442:FLOOD CONTROL (EN) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/25591574?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=J+HYDROL&rft.atitle=Comparison+of+estimates+of+snow+input+with+a+small+alpine+catchment&rft.au=Sommerfeld%2C+R+A%3BMusselman%2C+R+C%3BWooldridge%2C+G+L&rft.aulast=Sommerfeld&rft.aufirst=R&rft.date=1990-01-01&rft.volume=120&rft.issue=1-4&rft.spage=295&rft.isbn=&rft.btitle=&rft.title=J+HYDROL&rft.issn=00221694&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 ER - TY - JOUR T1 - Climate change effects on the snowmelt hydrology of western North American mountain basins AN - 25590474; 2001-34-002478 (CE); 0113067 (EN) AB - Several effects of increasing atmospheric CO sub(2) content on climate are considered--namely, increasing atmospheric temperature, changing snowmelt equivalent at the beginning of the snowmelt, and changing precipitation during the snowmelt runoff season. The effects that these changes would have on runoff from mountain basins were evaluated by use of the snowmelt runoff model (SRM). The major effect on runoff was caused by increasing temperature. An increase in total seasonal runoff resulted, but the more interesting and significant effect was a redistribution of runoff to the months April and May. Depending on whether snowmelt season precipitation and winter snow accumulation increased or decreased, the temperature effect on the hydrograph was magnified or diminished. The model results indicated a potential serious problem in western North America where climate change could widen the gap between water supply and water demand as well as causing existing water storage and distribution systems to be ineffective. JF - IEEE TRANS GEOSCI REMOTE SENS AU - Rango, Albert AU - van Katwijk, Victor F AD - USDA-ARS Beltsville Agricultural Res Center, MD, USA PY - 1990 SP - 970 EP - 974 PB - Institute of Electrical and Electronics Engineers, Inc , 445Hoes Ln, Piscataway, NJ, 08854-1331, UK, [mailto:inspec@ieee.org], [URL:http://iee.org.uk] VL - 28 IS - 5 SN - 0196-2892, 0196-2892 KW - Civil Engineering (CE); Environmental Engineering (EN) KW - Runoff KW - Climate KW - Mountains KW - Precipitation KW - Basins KW - Water supply KW - Temperature effects KW - Temperature KW - Hydrology KW - Marketing KW - Demand KW - Storage KW - Snow accumulation KW - Equivalence KW - Article KW - EE 723:COMPUTER SOFTWARE, DATA HANDLING AND APPLICATIONS (EN) KW - EE 443:METEOROLOGY KW - EE 444:WATER RESOURCES KW - EE 446:WATERWORKS KW - EE 442:FLOOD CONTROL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/25590474?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=IEEE+TRANS+GEOSCI+REMOTE+SENS&rft.atitle=Climate+change+effects+on+the+snowmelt+hydrology+of+western+North+American+mountain+basins&rft.au=Rango%2C+Albert%3Bvan+Katwijk%2C+Victor+F&rft.aulast=Rango&rft.aufirst=Albert&rft.date=1990-01-01&rft.volume=28&rft.issue=5&rft.spage=970&rft.isbn=&rft.btitle=&rft.title=IEEE+TRANS+GEOSCI+REMOTE+SENS&rft.issn=01962892&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 ER - TY - JOUR T1 - Safety and Potency Testing of Federally Licensed Fish Bacterins AN - 20539467; 9225377 AB - Federally licensed fish biologicals include Vibrio anguillarum-V. ordalii and Yersinia ruckeri bacterins. Three commercial firms are licensed to produce and market these bacterins. Standard test procedures are established for the safety and potency testing of Vibrio anguillarum-V. ordalii and Yersinia ruckeri bacterins and are being developed for Aeromonas salmonicida bacterins. The National Veterinary Services Laboratories (NVSL) routinely tests production lots for safety and potency in salmonids, primarily rainbow trout Oncorhynchus mykiss. Test methods have proven satisfactory with good agreement of test results between those of licensed firms and the NVSL. Recommendations for potency test standards are presented. JF - Journal of Aquatic Animal Health AU - Cardella, Matteo A AU - Eimers, Mark E AD - U.S. Department of Agriculture, Animal and Plant Health Inspection Service Science and Technology, National Veterinary Services Laboratories Ames, Iowa 50010, USA Y1 - 1990/01// PY - 1990 DA - Jan 1990 SP - 49 EP - 55 PB - American Fisheries Society, 5410 Grosvenor Ln. VL - 2 IS - 1 SN - 0899-7659, 0899-7659 KW - Microbiology Abstracts B: Bacteriology; Microbiology Abstracts A: Industrial & Applied Microbiology; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Yersinia ruckeri KW - Aquatic animals KW - Vibrio KW - Bacterins KW - Fish diseases KW - Anadromous species KW - Bacterial diseases KW - Oncorhynchus mykiss KW - Aeromonas salmonicida KW - J 02410:Animal Diseases KW - O 5080:Legal/Governmental KW - Q1 08484:Species interactions: parasites and diseases KW - A 01300:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20539467?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Aquatic+Animal+Health&rft.atitle=Safety+and+Potency+Testing+of+Federally+Licensed+Fish+Bacterins&rft.au=Cardella%2C+Matteo+A%3BEimers%2C+Mark+E&rft.aulast=Cardella&rft.aufirst=Matteo&rft.date=1990-01-01&rft.volume=2&rft.issue=1&rft.spage=49&rft.isbn=&rft.btitle=&rft.title=Journal+of+Aquatic+Animal+Health&rft.issn=08997659&rft_id=info:doi/10.1577%2F1548-8667%281990%290022.3.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-05-01 N1 - Last updated - 2015-03-30 N1 - SubjectsTermNotLitGenreText - Aquatic animals; Bacterins; Fish diseases; Anadromous species; Bacterial diseases; Yersinia ruckeri; Vibrio; Oncorhynchus mykiss; Aeromonas salmonicida DO - http://dx.doi.org/10.1577/1548-8667(1990)002<0049:SAPTOF>2.3.CO;2 ER - TY - JOUR T1 - Precipitation Simulation Model for Mountainous Areas AN - 19160128; 9204539 AB - The use of a Markov chain-mixed exponential (MCME) model was investigated as a means of obtaining synthetic daily precipitation amounts at a site based on knowledge of the mean annual precipitation of the site. Data was taken from 25 National Weather Service stations in Idaho. A relationship between annual precipitation and some of the parameters in the MCME model existed, and other parameters could be assumed constant. Two sets of 50-year, daily precipitation records were generated for three test stations, Couer d'Alene, Idaho Falls, and Riggins. Simulations of mean annual precipitation using maximum likelihood parameter sets varied from the same precipitation at Riggins to 4% greater than the historical record at Idaho Falls. No pattern was found for overestimation or underestimation from either parameter set and simulated monthly values followed the seasonal trends at the three test sites. (See also W92-04441) (Brunone-PTT) JF - IN: Hydraulics/Hydrology of Arid Lands (H2AL). American Society of Civil Engineers, New York. 1990. p 578-583. 1 tab, 6 ref. AU - Hanson, CL AU - Woolhiser, DA AD - Agricultural Research Service (USDA-ARS), 270 South Orchard, Boise, Idaho Y1 - 1990 PY - 1990 DA - 1990 KW - Water Resources Abstracts KW - *Idaho KW - *Markov chains KW - *Mathematical models KW - *Meteorology KW - *Model studies KW - *Mountains KW - *Precipitation KW - *Rainfall distribution KW - *Simulation analysis KW - Maximum likelihood estimation KW - Meteorological data KW - Synthetic hydrology KW - Temporal distribution KW - SW 5080:Evaluation, processing and publication KW - SW 0815:Precipitation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19160128?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Precipitation+Simulation+Model+for+Mountainous+Areas&rft.au=Hanson%2C+CL%3BWoolhiser%2C+DA&rft.aulast=Hanson&rft.aufirst=CL&rft.date=1990-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Pressure and Stress Distributions Due to a Submerged Impinging Jet AN - 19155250; 9210963 AB - The pressure and shear stress distribution at a smooth planar boundary in the impingement region of a submerged vertical jet in water was examined. A model with a temperature compensated pressure transducer was used to measure pressure fluctuations, and a hot-film anemometer probe measured the boundary shear stress; voltage readings were taken at predetermined radial locations from the stagnation point of the jet for a range of differential heads. The mean pressure and shear stress distributions were found to be similar to those measured in previous air jet studies, although the peak shear stress determined from the experimental results appeared to be slightly closer to the stagnation point than that determined from the air jet studies. An empirical relationship was developed for describing the shear stress distribution along the entire planar boundary in the impingement region, as well as for the maximum pressure, the pressure distribution, and the maximum shear stress. The shear stress distribution equation indicates that stress observed at the boundary in the impingement zone is weakly dependent on the Reynolds number, as corroborated using the measured experimental data. (See also W92-10876) (Fish-PTT) JF - IN: Hydraulic Engineering: Proceedings of the 1990 National Conference. American Society of Civil Engineers, New York. 1990. p 525-530, 9 fig, 1 tab, 3 ref. AU - Hanson, G J AU - Robinson, K M AU - Temple, D M AD - USDA, ARS, Hydraulic Engineering Research Unit, 1301 N. Western, Stillwater, OK 74075 Y1 - 1990 PY - 1990 DA - 1990 KW - Water Resources Abstracts KW - *Hydraulic engineering KW - *Scour KW - *Hydraulic models KW - *Numerical analysis KW - *Channel scour KW - *Shear stress KW - *Jets KW - *Stress analysis KW - *Pressure distribution KW - Pressure-measuring instruments KW - Reynolds number KW - *Model studies KW - Boundary processes KW - SW 5080:Evaluation, processing and publication KW - SW 6020:Hydraulics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19155250?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Pressure+and+Stress+Distributions+Due+to+a+Submerged+Impinging+Jet&rft.au=Hanson%2C+G+J%3BRobinson%2C+K+M%3BTemple%2C+D+M&rft.aulast=Hanson&rft.aufirst=G&rft.date=1990-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Field Techniques to Evaluate Surface Irrigation Systems with Relevance to Developing Nations AN - 19152112; 9204233 AB - Team members of the Irrigation Management Service (IMS), operating as part of a Soil Conservation Service program, determine two primary irrigation parameters when they evaluate surface irrigation systems. These parameters are field application efficiency (FAE) and distribution uniformity (DU). FAE is an indicator of management practices, whereas DU indicates the physical system's ability to apply water uniformly across the field. FAE is defined as the amount of water stored in the root zone divided by the amount applied during the irrigation. This amount stored depends on the amount of available moisture in the active crop root zone and the water holding capacity of the soil. DU measures how uniformly water has infiltrated at various locations along the length of a run. It is defined as the ratio of the minimum amount of water infiltrated (usually represented by the low quarter of the field) to the average amount infiltrated. Once FAE and DU values are determined for the irrigation event, the next step is to provide the grower with alternatives to consider for improving the use of irrigation water in future irrigation events. A physical system concern is the balance of efficiency (FAE) with the uniformity of application (DU). Some surface irrigation systems cannot physically apply amounts less than 100 mm with adequate uniformity. Trained personnel working from a mobile irrigation laboratory also instruct the grower in sound techniques of irrigation water management. A tenet of the Arizona IMS program is that the procedures and techniques for on-farm evaluations be simple so that growers and irrigators can readily, with proper instruction, conduct their own system evaluations and thus make more informed on-farm IWM decisions. (See also W92-04112) (Rochester-PTT) JF - IN: Visions of the Future. ASAE Publication 04-90. American Society of Agricultural Engineers, St. Joseph, Michigan. 1990. p 750-756, 3 fig, 2 tab, 4 ref. AU - Ekholt, BA AD - USDA Soil Conservation Service's Irrigation Management Service, Casa Grande, Arizona Y1 - 1990 PY - 1990 DA - 1990 KW - Water Resources Abstracts KW - *Developing countries KW - *Infiltration KW - *Irrigation KW - *Irrigation efficiency KW - *Surface irrigation KW - Distribution uniformity KW - Field application efficiency KW - Irrigation Management Service KW - Performance evaluation KW - Public participation KW - Spatial distribution KW - Technology transfer KW - Water management KW - SW 4050:Water law and institutions KW - SW 1060:Conservation in agricultural use UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19152112?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Field+Techniques+to+Evaluate+Surface+Irrigation+Systems+with+Relevance+to+Developing+Nations&rft.au=Ekholt%2C+BA&rft.aulast=Ekholt&rft.aufirst=BA&rft.date=1990-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Irrigation Management Service's Role in Improving Irrigation Water Use in Arizona AN - 19136944; 9204121 AB - The Irrigation Management Service (IMS) of the USDA Soil Conservation Service provides technical and education assistance to growers in Pinal County, Arizona, one of the most intensely surface-irrigated cotton regions in the world. Since the program 's inception in July 1987, the IMS team has conducted more than 120 field evaluations of actual irrigation events with the aim of providing the grower with management and physical change alternatives to apply the required amount of irrigation water more effectively. In addition to technical expertise, IMS provides education assistance directly to the grower. Procedures , techniques, and equipment used IMS are simple and can be readily adopted by growers to manage their own irrigation water. The aim of the IMS is to provide interested growers with the procedures and practices necessary to improve irrigation water application. (See also W92-04112) (Rochester-PTT) JF - IN: Visions of the Future. ASAE Publication 04-90. American Society of Agricultural Engineers, St. Joseph, Michigan. 1990. p 61-63, 1 ref. AU - Haynes, CA AU - Ekholt, BA AD - USDA Soil Conservation Service, Casa Grande, Arizona Y1 - 1990 PY - 1990 DA - 1990 KW - Water Resources Abstracts KW - *Administrative agencies KW - *Arizona KW - *Irrigation KW - *Irrigation management KW - *Irrigation programs KW - *Water use efficiency KW - Cotton KW - Education KW - Extension services KW - Irrigation Management Service KW - Surface irrigation KW - Water conservation KW - SW 4050:Water law and institutions KW - SW 4040:Water demand KW - SW 1060:Conservation in agricultural use UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19136944?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Irrigation+Management+Service%27s+Role+in+Improving+Irrigation+Water+Use+in+Arizona&rft.au=Haynes%2C+CA%3BEkholt%2C+BA&rft.aulast=Haynes&rft.aufirst=CA&rft.date=1990-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Irrigation Efficiency and Uniformity AN - 19130868; 9205733 AB - The management of irrigation systems is important for the efficient use of natural resources and crop production. An evaluation of systems can be made with a number of efficiency and uniformity definitions; the appropriate selection of the definitions is a function of the system and desired objectives for use of the water supply. It may be necessary to reduce surface runoff or decrease deep percolation. An increase of one efficiency may decrease another. The following examples illustrate the approach to system evaluation. Surface irrigation systems can be optimized for maximum profit considering flow rate and irrigation time as design variables. For each combination of flow and time, average and variability of water application can be used in a water production function to calculate yield and revenue. Costs include the irrigation water, drain water disposal, and runoff disposal or recirculation. Total cost is charged against yield revenue to give profit, and the combination of flow rate and irrigation time giving the greatest profit is optimal. A similar method is used for sprinkler systems, but the design variables are sprinkler spacing, applied water and pressure. Expenses include water, energy, pipe, sprinklers, and pumping plant costs. Although drainage cost was not included in this study, it could have been included since average and variability of application are calculated. Revenue is found using a water production function which relates yield to applied water and uniformity. Although not reported in this literature, a parallel analysis could be conducted for micro-irrigation systems. (See also W92-05728) (Lantz-PTT) JF - IN: Management of Farm Irrigation Systems. American Society of Agricultural Engineers, St. Joseph, MI. 1990. p 125-149, 2 fig, 63 ref. AU - Heermann, D F AU - Wallender, W W AU - Bos, M G AD - USDA-ARS, Irrigation and Drainage Group, Fort Collins, CO Y1 - 1990 PY - 1990 DA - 1990 KW - Water Resources Abstracts KW - *Crop production KW - *Crop yield KW - *Irrigation design KW - *Irrigation efficiency KW - *Irrigation management KW - *Irrigation practices KW - *Irrigation uniformity KW - Costs KW - Irrigation KW - Irrigation systems KW - Sprinkler irrigation KW - Surface irrigation KW - SW 1060:Conservation in agricultural use UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19130868?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Irrigation+Efficiency+and+Uniformity&rft.au=Heermann%2C+D+F%3BWallender%2C+W+W%3BBos%2C+M+G&rft.aulast=Heermann&rft.aufirst=D&rft.date=1990-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Summary of Irrigation Practices within the Pinal Active Management Area, Central Arizona AN - 19129718; 9204118 AB - The USDA Soil Conservation Service (SCS) operates Arizona's only mobile irrigation laboratory. This Irrigation Management Service (IMS) is based at the Pinal County SCS Field Office in Casa Grande, Arizona, in the heart of the Southwestern desert. Information collected during field evaluations of single irrigation events provides the information base from which generalizations about the condition of irrigation practices within Pinal County can be deduced. Farm irrigation systems in Pinal County are predominantly surface systems, although some trickle and sprinkle systems exist. IMS evaluation information was collected on level and graded surface irrigation systems. The results of the current IMS information base of field evaluations suggest that the type of irrigation with the highest field application efficiency (and second highest distribution uniformity) is a graded border system. Owners and operators are making physical changes (land leveling, concrete ditch lining, shortening lengths of run, etc.) to reduce irrigation water use, but lack the desire to make corresponding management changes (e.g., change traditional set times, reduce or increase flow rate per furrow, or lengthen irrigation frequency). (See also W92-04112) (Rochester-PTT) JF - IN: Visions of the Future. ASAE Publication 04-90. American Society of Agricultural Engineers, St. Joseph, Michigan. 1990. p 40-46, 2 fig, 4 tab, 2 ref. AU - Ekholt, BA AU - Jones, R D AD - USDA-SCS Irrigation Management Service, Casa Grande, Arizona Y1 - 1990 PY - 1990 DA - 1990 KW - Water Resources Abstracts KW - *Arizona KW - *Field tests KW - *Irrigation KW - *Irrigation management KW - *Irrigation practices KW - *Pinal Active Management Area KW - Agricultural engineering KW - Arid lands KW - Border irrigation KW - Irrigation design KW - Management planning KW - Soil conservation KW - SW 1060:Conservation in agricultural use UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19129718?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Summary+of+Irrigation+Practices+within+the+Pinal+Active+Management+Area%2C+Central+Arizona&rft.au=Ekholt%2C+BA%3BJones%2C+R+D&rft.aulast=Ekholt&rft.aufirst=BA&rft.date=1990-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Feedback Control of Cablegation Systems AN - 19128837; 9204220 AB - Cablegation is an automated furrow irrigation system fabricated from gated pipe, a plug that blocks water flow and slides through the pipe, and a controller that reels out cable to regulate the rate of plug movement. Feedback control involves automatically sensing information about irrigation performance such as stream advance rates or tailwater runoff rate and modifying the application to improve performance. A field evaluation of experimental feedback controllers for furrow cablegation systems was conducted on existing cablegation systems in northeastern Colorado. One field covered 11.3 ha and was rectangular, with runs of 390 m and a uniform field slope (0.5%). The other field consisted of 3.2 ha and was extremely irregular in shape and slope, with furrow lengths varying from 95 to 290 m. Both fields were planted to corn. The cablegation feedback control system requires only one sensor location and one control point. There are four components in the system: (1) runoff sensor, (2) small microcomputer, (3) data communication system between sensor and controller, and (4) an electronic cablegation controller. The system did not operate effectively on the flat field with widely varying infiltration, but it responded quickly to changing row lengths and inflow rates on the steep field. (See also W92-04112) (Rochester-PTT) JF - IN: Visions of the Future. ASAE Publication 04-90. American Society of Agricultural Engineers, St. Joseph, Michigan. 1990. p 667-674, 5 fig, 6 ref. AU - Humphries, M AU - Trout, T J AD - USDA-Agricultural Research Service, Soil and Water Management Unit, 3793 N. 3600 E., Kimberly, Idaho 83341 Y1 - 1990 PY - 1990 DA - 1990 KW - Water Resources Abstracts KW - *Automation KW - *Control systems KW - *Furrow irrigation KW - *Irrigation KW - *Irrigation efficiency KW - Cablegation KW - Computers KW - Data acquisition KW - Gates KW - Performance evaluation KW - Runoff KW - Sensors KW - Slopes KW - Valves KW - SW 5040:Data acquisition KW - SW 6030:Hydraulic machinery KW - SW 1060:Conservation in agricultural use UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19128837?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Feedback+Control+of+Cablegation+Systems&rft.au=Humphries%2C+M%3BTrout%2C+T+J&rft.aulast=Humphries&rft.aufirst=M&rft.date=1990-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - An Evaluation of Precipitation Measurements in the Arctic AN - 19128324; 9203682 AB - Arctic winters are characterized by months of very low temperatures, light density snowfall, and incessant winds which redistribute enormous volumes of snow. Data for windswept cold regions is severely lacking for technological studies and blowing snow control projects. Continued resource demands require better hydrometeorological data to minimize future negative environmental impacts. A precipitation gage, without adequate artificial windshielding has little chance of catching the correct amount of new snowfall in wind-driven Arctic snowstorms. New windshields available today are providing improved accuracy. A series of Wyoming windshields were built in Alaska in the 1970s which generated 170 water years of record through 1988. The accuracy of the Wyoming shield data compared to true or total snowfall water-equivalent is still an unknown, and will never be known until the fundamental problem of determining 'ground truth' is resolved. The small amount of data collected suggest that Wyoming windshields in Alaska result in a precipitation catch efficiency on the order of 90 percent of total snowfall as compared to other sources of data. Also, the Wyoming shielded gage's catch was 200 percent greater than the National Weather Service's standard unshielded precipitation gages when used during November through April (the coldest period) and 100 percent more for the whole winter. Implications remain firm that unshielded gages suffer a serious catch deficiency at windy, exposed locations. Wyoming shielded gages may provide the best available estimate of snowfall at remote, windy, and exposed locations. (See also W92-03663) (Collins-PTT) JF - IN: Cold Regions Hydrology and Hydraulics. American Society of Civil Engineers, New York. 1990. p 617-639, 2 fig, 4 tab, 19 ref , append. AU - Clagett, G P AD - U.S.D.A., Soil Conservation Service, 201 E. 9th Avenue, Suite 300, Anchorage, Alaska Y1 - 1990 PY - 1990 DA - 1990 KW - Water Resources Abstracts KW - *Alaska KW - *Cold regions KW - *Cold regions hydrology KW - *Instrumentation KW - *Meteorological data collection KW - *Rain gages KW - *Wind effects KW - Blowing snow KW - Data interpretation KW - Measuring instruments KW - Performance evaluation KW - Snow accumulation KW - Wyoming windshields KW - SW 5040:Data acquisition KW - SW 0820:Snow, ice and frost UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19128324?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=An+Evaluation+of+Precipitation+Measurements+in+the+Arctic&rft.au=Clagett%2C+G+P&rft.aulast=Clagett&rft.aufirst=G&rft.date=1990-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Aufeis Formation and Prevention AN - 19126594; 9203675 AB - Aufeis is a seasonal accumulation of ice which is superimposed on the frozen surface of a stream or landscape. Aufeis accumulation is common in areas of continuous or discontinuous permafrost, but also occurs in more temperate settings where a source of winter flow of water coincides with prolonged freezing conditions. Aufeis accumulation constitutes a major management problem for roadways, culverts and structures which have been located in areas susceptible to ice accumulation, or whose construction impedes water movement in the soil mantle or in surficial channels. Accumulation of aufeis can affect the hydrologic regimen of river basins, and can have localized impact on water quality, fluvial geomorphology, and ecological systems. Approaches to aufeis control include passive and active engineering measures. Probably the most important measure is to emphasize adequate site investigation and pre-construction terrain analysis to understand potential for aufeis problems, and to avoid wherever possible, sites of potential aufeis accumulation. (See also W92-03663) (Author's abstract) JF - IN: Cold Regions Hydrology and Hydraulics. American Society of Civil Engineers, New York. 1990. p 433-458, 14 fig, 37 ref. AU - Slaughter, C W AD - Institute of Northern Forestry, Pacific Northwest Station, USDA Forest Service, 308 Tanana Drive, Fairbanks, Alaska Y1 - 1990 PY - 1990 DA - 1990 KW - Water Resources Abstracts KW - *Cold regions KW - *Cold regions hydrology KW - *Frozen ground KW - *Ice formation KW - *Icings KW - *Streams KW - Culverts KW - Engineering KW - Hydraulic structures KW - Hydrologic aspects KW - Roads KW - Structure KW - SW 0820:Snow, ice and frost UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19126594?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Aufeis+Formation+and+Prevention&rft.au=Slaughter%2C+C+W&rft.aulast=Slaughter&rft.aufirst=C&rft.date=1990-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Single-Stage and Two-Stage Decision Modeling of the Recreational Demand for Water AN - 19117565; 9101699 AB - Past rivalry over access to water has usually been between the farmers who irrigate, and new agricultural, industrial and municipal demands. Recently, the recreational demand for water has become another consideration in water allocation decisions. The significance of the recreational demand for water as a fishery resource is examined in this study by applying two different frameworks to the decision to fish recreationally. The consistency of the estimated responses to changes in fishery resources across both decision frameworks testifies to the importance of streams as a recreational fishery resource. Modeling behavior within the household production framework allows all downstream effects to be estimated, not just impacts at particular sites. Marginal values of water as a recreational fishery resource are estimated based on daily values of fishing derived in prior research. (Author 's abstract) JF - Journal of Agricultural Economics Research, Vol. 42, No. 1, p 16-26, Winter 1990. 1 fig, 4 tab, 26 ref. AU - Hallam, JA AU - Hansen, L T AD - Economic Research Service Y1 - 1990/01// PY - 1990 DA - Jan 1990 KW - Water Resources Abstracts KW - Fisheries Model studies Recreation Water demand Competing use KW - Decision making Fishing Water supply KW - SW 4040:Water demand UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19117565?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Single-Stage+and+Two-Stage+Decision+Modeling+of+the+Recreational+Demand+for+Water&rft.au=Hallam%2C+JA%3BHansen%2C+L+T&rft.aulast=Hallam&rft.aufirst=JA&rft.date=1990-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Correlation of Erosion Measurements and Soil Caesium-137 Content AN - 19113099; 9102913 AB - Progress in erosion research has been substantially restrained because there is no simple technique for the estimation of long-term soil loss rates. A technique has been developed that uses a calibration between measured soil loss from small plots with measured soil CS-137 content (expressed as a percentage loss relative to the Cs-137 content of a local stable reference soil). Sites of soil loss measurement throughout Australia were sampled by coring to determine their relative Cs-137 content. Measurements made on erosion/runoff plots are confined to the effects of shallow, ephemeral rills and sheet erosion by water. Plotting the average soil loss results against residual cesium content relative to a local, stable reference site indicated that their relationship was exponential. Soil loss data were therefore log-transformed and a regular regression analysis was performed on the data. Precision was considerably improved by partitioning the data into sets for cultivated soils and pasture land. These regressions were highly significant for pasture plot results and for cultivated sites. The measured soil losses form erosion/runoff plots are real data which may be extrapolated to other areas if an acceptable correlation is found with an easily measured soil attribute. The 95% confidence limits on the regressions reflect real field variability. Comparisons of prediction of soil erosion by the regression method and by the proportional method indicate that estimates by the proportional method are approximately 10 times greater. The regression represents a simple and rapid tool for the estimation of net soil loss from sites which have a uniform and continuous history of land- use. (Fish-PTT) JF - International Journal of Radiation Applications & Instrumentation. A, Appl. Radiation & Isotopes ARISEF, Vol. 41, No. 8, p 713-717, 1990. 2 fig, 1 tab, 43 ref. AU - Loughran, R J AU - Campbell, B L AU - Elliott, G L AD - Soil Conservation Service Y1 - 1990 PY - 1990 DA - 1990 KW - Water Resources Abstracts KW - Cesium radioisotopes Erosion Land use Regression analysis Soil KW - erosion Tracers Australia Cultivated lands Data interpretation KW - Land management Rills Sheet erosion Soil management KW - SW 2060:Effects on water of human nonwater activities KW - SW 0870:Erosion and sedimentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19113099?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Correlation+of+Erosion+Measurements+and+Soil+Caesium-137+Content&rft.au=Loughran%2C+R+J%3BCampbell%2C+B+L%3BElliott%2C+G+L&rft.aulast=Loughran&rft.aufirst=R&rft.date=1990-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Socio-Economic Data Relating to the Water Quality Initiative AN - 19098669; 9102999 AB - The U.S. Department of Agriculture has access to several types of socioeconomic data that can be used to study the Water Quality Initiative. General data types are primary source data (derived from surveys), secondary source data (derived from external sources), and analytic models which yield useful data for water quality research (primary or secondary source data filtered through Economic Research Service (ERS) modeling or analytic capabilities). Specific types of data available include: financial data, such as prices received as well as farm costs and returns; cropping practices and land use; input use, including pesticides, fertilizers, machinery, and labor; sociological and demographic data; and international and trade data. These data are made available through the internal ERS database (ARIES); publicly available datasets for distribution via electronic media; periodic ERS reports which include statistical or data tables; and ERS reports. The data or surveys specifically relating to water quality that ERS maintains include: Farm Costs and Returns Survey, Objective Yield Survey, Water Quality Survey, and an agrichemical leaching loss algorithm and associated database. Approximately $1.0 million has been made for the database component of the Water Quality Initiative and currently a pilot cotton survey is underway. Data or analytic capabilities needed by economists include: linkages to geophysical and hydrogeologic databases; filling in the ' Black Box ' (fate, transport, and impact of agricultural chemicals); and better understanding of alternatives to traditional agriculture. (See also W91-02985) (Fish-PTT) JF - Information Exchange on Models and Data Needs Relating to the Impact of Agricultural Practices on Water Quality: Workshop Proceedings. U.S. Geological Survey, Reston, Virginia. 1990. p 63-65. AU - Crutchfield AD - Economic Research Service Y1 - 1990 PY - 1990 DA - 1990 KW - Water Resources Abstracts KW - Agriculture Data collections Databases Economic evaluation KW - Nonpoint pollution sources Water pollution control Water quality KW - management Data storage and retrieval Farm management Model KW - studies KW - SW 5080:Evaluation, processing and publication KW - SW 3070:Water quality control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19098669?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Socio-Economic+Data+Relating+to+the+Water+Quality+Initiative&rft.au=Crutchfield&rft.aulast=Crutchfield&rft.aufirst=&rft.date=1990-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Soil Conservation Service Climatic Data Access Facility AN - 19097915; 9102998 AB - Reliable, readily accessible climatic data are essential for planning and implementing resource management systems. Climate parameters are the driving forces in the processes associated with the hydrologic cycle, soil erosion, and plant growth. They are thus key to any concerted effort aimed at addressing water quality and quantity issues in the agricultural environment. An interdisciplinary task force was commissioned to study alternative means to correct the deficiency of the Soil Conservation Service to acquire, manage, interpret, and effectively use climate data in its operations. The recommendation of that task force was to create a Climate Data Access Facility (CDAF) to serve as the primary focal point for intra-agency climate data access. It is not the intent of CDAF to duplicate databases and services that can more efficiently be obtained elsewhere; only those data that are required to support operational programs or that are frequently used will be kept online for interactive retrieval. The CDAF cannot fulfill its intended purpose without a national network of support personnel. A small dedicated staff will operate the CDAF, augmented by climatic liaisons at technical centers. (See also W91-02985) (Fish-PTT) JF - Information Exchange on Models and Data Needs Relating to the Impact of Agricultural Practices on Water Quality: Workshop Proceedings. U.S. Geological Survey, Reston, Virginia. 1990. p 61-62. AU - Shafer, BA AD - Soil Conservation Service Y1 - 1990 PY - 1990 DA - 1990 KW - Water Resources Abstracts KW - Agriculture Climatic data Data storage and retrieval Hydrologic KW - data collections Nonpoint pollution sources Resources management KW - Water pollution control Hydrologic cycle Management planning KW - Soil conservation KW - SW 5080:Evaluation, processing and publication KW - SW 0815:Precipitation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19097915?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Soil+Conservation+Service+Climatic+Data+Access+Facility&rft.au=Shafer%2C+BA&rft.aulast=Shafer&rft.aufirst=BA&rft.date=1990-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Development of the National Resources Inventory AN - 19097864; 9103000 AB - The U.S. Department of Agriculture 's Soil Conservation Service (SCS) has conducted periodic inventories of the nation 's soil, water, and related resources for over 50 years. The National Resources Inventory (NRI) produces estimates of non-federal land cover and use, rates of sheet, rill, and wind erosion, conservation treatment needs, the extent of highly erodible cropland, and many other resource characteristics and related soil properties, based upon data collected at scientifically- selected random sample sites located in all U.S. counties. The 1987 NRI updated selected 1982 NRI data items for a subsample of 1982 NRI sample sites; it was specifically designed to detect significant 5-year trends in the condition of the nation 's natural resources. Sufficient data were collected from a statistically-selected sample to allow for analysis of resource conditions at the state level. For the 1987 NRI, data were collected for nearly 1 million sample sites. The NRI is the federal government 's principal source of information on the status, condition, and trend of soil, water, and related resources on the nation 's nonfederal lands. NRI data serve a wide range of purposes, among them: monitoring trends, helping formulate state and national policy, appraising progress of conservation programs, providing information to agency management, and aiding in research and modeling efforts. The 1987 NRI data are being made available in many forms: a USDA statistical bulletin, a computerized system available at Iowa State University, and through SCS state offices. (See also W91-02985) (Fish-PTT) JF - Information Exchange on Models and Data Needs Relating to the Impact of Agricultural Practices on Water Quality: Workshop Proceedings. U.S. Geological Survey, Reston, Virginia. 1990. p 69-71, 3 ref. AU - Shafer, BA AU - Goebel, J J AD - Soil Conservation Service Y1 - 1990 PY - 1990 DA - 1990 KW - Water Resources Abstracts KW - Agriculture Data collections Natural resources Nonpoint KW - pollution sources Resources management Water pollution control KW - Water resources data Conservation Environmental policy KW - Governmental interrelations Land use Water sampling KW - SW 5080:Evaluation, processing and publication KW - SW 3070:Water quality control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19097864?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Development+of+the+National+Resources+Inventory&rft.au=Shafer%2C+BA%3BGoebel%2C+J+J&rft.aulast=Shafer&rft.aufirst=BA&rft.date=1990-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Properties of aldose reductase from the methanol yeast Candida biodinii AN - 16815260; 3758807 AB - In addition to xylose isomerase and sorbitol dehydrogenase activities, Candida biodinii contains aldose reductase activity. This aldose reductase does not appear to contribute to sorbitol formation because it has negligible activity with glucose as a substrate. The high activity of this aldose reductase with non-sugar aldehydes suggests that there may be industrial potential for this or other yeast aldose reductases in the production of various diols and triols, particularly since this enzyme acts irreversibly on these aldehyde substrates. (DBO) JF - Journal of Fermentation and Bioengineering AU - Bolen, P L AU - McCracken, DA AD - Northern Reg. Res. Cent., USDA, Peoria, IL 61604, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 211 EP - 214 VL - 69 IS - 4 SN - 0922-338X, 0922-338X KW - Candida biodinii KW - NAD KW - aldose reductase KW - glucose KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - enzymatic activity KW - anion-exchange chromatography KW - A 01117:Fungi KW - W2 32310:Enzymes and cofactors KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16815260?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Fermentation+and+Bioengineering&rft.atitle=Properties+of+aldose+reductase+from+the+methanol+yeast+Candida+biodinii&rft.au=Bolen%2C+P+L%3BMcCracken%2C+DA&rft.aulast=Bolen&rft.aufirst=P&rft.date=1990-01-01&rft.volume=69&rft.issue=4&rft.spage=211&rft.isbn=&rft.btitle=&rft.title=Journal+of+Fermentation+and+Bioengineering&rft.issn=0922338X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - enzymatic activity; anion-exchange chromatography ER - TY - JOUR T1 - State-of-the-art timber harvest in an Arizona mixed conifer forest has minimal effect on overland flow and erosion AN - 16749243; 3722614 AB - When the Thomas Creek, Arizona, USA, watershed was logged for the first time, the latest state-of-the-art harvesting was applied. Trees were cut in patches and by group selection, and logs skidded by crawler tractor. Although overland flow and sediment delivery, measured on small sub-drainages of the watershed, were inconsequential, sediment deliveries from severely disturbed areas and undisturbed forest floor were significantly different (41 and 6 kg/ha/year, respectively). The highest erosion rates (128 kg/ha/year) were created by monitoring activities which entailed the use of over-snow vehicles and trail bikes. Nearly instantaneous rises in the hydrograph at the start of storms were caused by pipe flows. Significant increases of flow volumes and peak flows after timber harvest increased magnitudes of channel adjustment processes (erosion) that had existed already before logging. This development was judged positively, because it suggests more rapid attainment of a new dynamic equilibrium. The study demonstrated that mixed conifer forests can be harvested without detrimental effects on the watershed if state-of-the-art techniques are used. (DBO) JF - Hydrological Sciences Journal/Journal des Sciences Hydrologiques AU - Heede, B H AU - King, R M AD - USDA Forest Serv., Rocky Mountain Forest and Range Exp. Stn., Fort Collins, CO 80526-2098, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 623 EP - 636 VL - 35 IS - 6 SN - 0262-6667, 0262-6667 KW - USA, Arizona, Thomas Creek KW - ASFA 3: Aquatic Pollution & Environmental Quality KW - forest industry KW - environmental impact KW - vegetation cover KW - Freshwater KW - soil erosion KW - land use KW - stormwater runoff KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16749243?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrological+Sciences+Journal%2FJournal+des+Sciences+Hydrologiques&rft.atitle=State-of-the-art+timber+harvest+in+an+Arizona+mixed+conifer+forest+has+minimal+effect+on+overland+flow+and+erosion&rft.au=Heede%2C+B+H%3BKing%2C+R+M&rft.aulast=Heede&rft.aufirst=B&rft.date=1990-01-01&rft.volume=35&rft.issue=6&rft.spage=623&rft.isbn=&rft.btitle=&rft.title=Hydrological+Sciences+Journal%2FJournal+des+Sciences+Hydrologiques&rft.issn=02626667&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - forest industry; vegetation cover; environmental impact; soil erosion; land use; stormwater runoff; Freshwater ER - TY - JOUR T1 - Effects of CO sub(2)-induced climatic changes on snowpack and streamflow AN - 16742443; 3722608 AB - Atmospheric concentrations of carbon dioxide (CO sub(2)) may double during the next century, causing changes in the Earth's climate. Warming of up to 4 degree C, slight cooling, and 10% changes in precipitation have been projected. Researchers have studied the possible impacts these changes may have on various aspects of the hydrological cycle, but little emphasis has been placed on snow accumulation and melt. In this study, the effects of climatic change on streamflow from a snowmelt-dominated basin in southwestern Montana, USA, are investigated. The National Weather Service River Forecast System model (NWSRFS) was first calibrated using data for the 1973-1984 period. Daily temperature and precipitation values were then changed, and the model run again to assess the effects on snowpack and streamflow of some possible climatic changes. Results indicate that streamflow may vary by from -22 to +45% depending on the combination of climatic changes imposed. (DBO) JF - Hydrological Sciences Journal/Journal des Sciences Hydrologiques AU - Cooley, K R AD - USDA, Agricult. Res. Serv., Pacific West Area, NW Watershed Res. Cent., 800 Park Blvd., Plaza IV, Suite 105, Boise, ID 83712, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 511 EP - 522 VL - 35 IS - 5 SN - 0262-6667, 0262-6667 KW - mathematical data KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - hydrologic cycle KW - snow KW - melt water KW - runoff KW - greenhouse effect KW - meteorological data KW - climatic changes KW - carbon dioxide KW - Q2 09241:General KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16742443?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrological+Sciences+Journal%2FJournal+des+Sciences+Hydrologiques&rft.atitle=Effects+of+CO+sub%282%29-induced+climatic+changes+on+snowpack+and+streamflow&rft.au=Cooley%2C+K+R&rft.aulast=Cooley&rft.aufirst=K&rft.date=1990-01-01&rft.volume=35&rft.issue=5&rft.spage=511&rft.isbn=&rft.btitle=&rft.title=Hydrological+Sciences+Journal%2FJournal+des+Sciences+Hydrologiques&rft.issn=02626667&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - hydrologic cycle; runoff; melt water; snow; greenhouse effect; meteorological data; carbon dioxide; climatic changes ER - TY - JOUR T1 - Characterization of bovine septicemic, bovine diarrheal, and human enteroinvasive Escherichia coli that hybridize with K88 and F41 accessory gene probes but do not express these adhesins. AN - 16665756; 3027480 AB - Certain DNA probes derived from accessory genes of cloned K88 and F41 determinants hybridize with Escherichia coli strains that express K88 or F41 and with certain other E. coli strains that do not express these antigens. We found that these probes hybridized with human enteroinvasive E. coli , and with bovine E. coli isolates which produced a fatal septicemia in experimentally infected piglets. These strains did not hybridize with probes derived from the structural subunit genes encoding the K88 and F41 antigens. E. coli strains isolated from turkeys with septicemia, Shigella and Salmonella strains did not hybridize to the K88 and F41 accessory gene probes. The K88 and F41 accessory gene probes hybridized with a 200 kb plasmid which is required for invasion by human enteroinvasive E. coli . The K88 and F41 accessory gene homology in the bovine isolates was located on a 150 kb transmissible plasmid but was unrelated to plasmids encoding aerobactin, Vir, or colicin V, which are suspected virulence factors in septicemic E. coli . A common plasmid-encoded antigen was associated with bovine isolates that hybridized with the K88 and F41 accessory gene probes. This included strains which express CS31A, a surface antigen associated with bovine septicemic E. coli , which also hybridized with the K88 and F4 accessory gene probes. The results suggest that the K88 and F41 accessory gene probes hybridized with sequences that may be associated with a common mechanism of pilus expression in distinct groups of E. coli pathogens. JF - Microbial Pathogenesis AU - Casey, T A AU - Moseley, S L AU - Moon, H W AD - Physiopathol. Res. Unit, Natl. Animal Dis. Cent., USDA-Agric. Res. Serv., Ames, IA 50010, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 383 EP - 392 VL - 8 IS - 6 SN - 0882-4010, 0882-4010 KW - Microbiology Abstracts B: Bacteriology KW - hybridization analysis KW - DNA KW - Escherichia coli KW - probes KW - enterotoxins KW - J 02832:Antigenic properties and virulence UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16665756?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Microbial+Pathogenesis&rft.atitle=Characterization+of+bovine+septicemic%2C+bovine+diarrheal%2C+and+human+enteroinvasive+Escherichia+coli+that+hybridize+with+K88+and+F41+accessory+gene+probes+but+do+not+express+these+adhesins.&rft.au=Casey%2C+T+A%3BMoseley%2C+S+L%3BMoon%2C+H+W&rft.aulast=Casey&rft.aufirst=T&rft.date=1990-01-01&rft.volume=8&rft.issue=6&rft.spage=383&rft.isbn=&rft.btitle=&rft.title=Microbial+Pathogenesis&rft.issn=08824010&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Escherichia coli; hybridization analysis; DNA; probes; enterotoxins ER - TY - JOUR T1 - Stormflow and sediment loss from intensively managed forest watersheds in East Texas AN - 16596425; 3655401 AB - Five small (4 ha) forested watersheds in East Texas were instrumented in December 1980 to determine the effect of forest harvesting, mechanical site preparation, and livestock grazing on stormflow, peak discharge rate, and sediment loss. After three pretreatment years, four of the watersheds were treated as follows: (1) clearcutting followed by roller chopping; (2) clearcutting following by shearing and windrowing; (3) clearcutting following by shearing, windrowing, and continuous grazing; and (4) clearcutting followed by shearing, windrowing, and rotational grazing. Clearcut harvesting and all site preparation treatments significantly increased stormflow, peak discharge, and sediment losses over the undisturbed condition. Roller chopping and shearing/windrowing had little impact on sediment loss from these watersheds and appears to be a sound forest conservation practice for gently sloping watersheds (<8 percent). As applied, livestock grazing had minimal impact on stormflow and peak discharge. The moderately stocked continuously grazed treatment had little impact on sediment loss, but the high stocking density of the rotational grazing treatment increased sediment losses over the undisturbed condition. Sediment losses from these intensively managed forest watersheds, even though significantly greater than from undisturbed conditions, were within the range of sediment losses from undisturbed watersheds in the Southeast, below the range of losses from mechanically prepared watersheds elsewhere, and well below potential losses from pasture and cropland. (DBO) JF - Water Resources Bulletin AU - Blackburn, W H AU - Knight, R W AU - Wood, J C AU - Pearson, HA AD - USDA-Agric. Res. Serv., 270 S. Orchard, Boise, ID 83705, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 465 EP - 478 VL - 26 IS - 3 SN - 0043-1370, 0043-1370 KW - USA, Texas, East KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - river discharge KW - sediment transport KW - forest industry KW - environmental impact KW - watersheds KW - Freshwater KW - resource management KW - Q2 09264:Sediments and sedimentation KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16596425?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Bulletin&rft.atitle=Stormflow+and+sediment+loss+from+intensively+managed+forest+watersheds+in+East+Texas&rft.au=Blackburn%2C+W+H%3BKnight%2C+R+W%3BWood%2C+J+C%3BPearson%2C+HA&rft.aulast=Blackburn&rft.aufirst=W&rft.date=1990-01-01&rft.volume=26&rft.issue=3&rft.spage=465&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Bulletin&rft.issn=00431370&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - river discharge; forest industry; sediment transport; environmental impact; watersheds; resource management; Freshwater ER - TY - JOUR T1 - Polymorphism in Brucella spp. due to highly repeated DNA. AN - 16404727; 2883453 AB - The species of Brucella are very closely related, but Brucella ovis does not express detectable amounts of a protein, designated BCSP31, that is common to the other species. We studied the lack of expression of BCSP31 by Southern analysis. DNAs from the B. ovis culture collection strains and field isolates were probed with a 1.3-kb HindIII fragment encoding BCSP31 of Brucella abortus . The large difference between B. ovis and B. abortus in the number of copies of the repeated DNA is interesting in the context of the closeness of the Brucella species. JF - Journal of Bacteriology AU - Halling, S M AU - Zehr, E S AD - USDA-ARS, Natl. Anim. Dis. Cent., P.O. Box 70, Ames, IA 50010, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 6637 EP - 6640 VL - 172 IS - 12 SN - 0021-9193, 0021-9193 KW - repeated sequence KW - Microbiology Abstracts B: Bacteriology; Biochemistry Abstracts 2: Nucleic Acids KW - polymorphism KW - DNA KW - Brucella abortus KW - Brucella ovis KW - requirements KW - N 14610:Occurrence, isolation & assay KW - J 02740:Genetics and evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16404727?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Bacteriology&rft.atitle=Polymorphism+in+Brucella+spp.+due+to+highly+repeated+DNA.&rft.au=Halling%2C+S+M%3BZehr%2C+E+S&rft.aulast=Halling&rft.aufirst=S&rft.date=1990-01-01&rft.volume=172&rft.issue=12&rft.spage=6637&rft.isbn=&rft.btitle=&rft.title=Journal+of+Bacteriology&rft.issn=00219193&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Brucella ovis; Brucella abortus; polymorphism; requirements; DNA ER - TY - JOUR T1 - Fate of heavy metals in an abandoned lead-zinc tailings pond: 1. Vegetation. AN - 16327262; 2839215 AB - A 50-yr-old abandoned tailings pond from a Pb-Zn processing mill was studied to determine relationships among depositional processes, physical and chemical properties of surface soils, vegetation development, and plant foliar concentrations of Zn, Cd, Cu, and Pb. Foliar concentrations of Cd, Zn, Cu and Pb in blue grama (Bouteloua gracilis ) and creeping bentgrass (Agrostis stolonifera ) showed no significant differences among the soil/vegetation types in which they dominated. Concentrations of Cd and Pb in foliage of alkali muhly (Muhlenbergia asperifolia ), a ubiquitous grass species, were higher at the south than the north end of the pond. Metal concentrations in alkali muhly showed significant linear relationships to soil concentrations of metals. The results were evaluated in terms of tailings pond reclamation. JF - Journal of Environmental Quality AU - Chambers, J C AU - Sidle, R C AD - Intermountain Res. Stn., USDA-For. Serv., 860 N. 1200 E., Logan, UT 84321, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 745 EP - 751 VL - 20 IS - 4 SN - 0047-2425, 0047-2425 KW - USA, New Mexico, Alamitos Canyon KW - fate KW - mineral processing KW - vegetation cover KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - Freshwater KW - mine tailings KW - pollution effects KW - land reclamation KW - heavy metals KW - Q5 08503:Characteristics, behavior and fate KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16327262?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Fate+of+heavy+metals+in+an+abandoned+lead-zinc+tailings+pond%3A+1.+Vegetation.&rft.au=Chambers%2C+J+C%3BSidle%2C+R+C&rft.aulast=Chambers&rft.aufirst=J&rft.date=1990-01-01&rft.volume=20&rft.issue=4&rft.spage=745&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - vegetation cover; mineral processing; mine tailings; pollution effects; land reclamation; heavy metals; fate; Freshwater ER - TY - JOUR T1 - Wilderness management: Has it come of age?. AN - 16322522; 2838831 AB - After 25 years of existence, the size and diversity of the National Wilderness Preservation System have placed increasing pressures on managers to maintain the original goals of the system. JF - Journal of Soil and Water Conservation AU - Cole, D N AD - For. Sci. Lab., Intermountain Res. Stn., Forest Serv., USDA, P.O. Box 8089, Missoula, MT 59807, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 360 EP - 364 VL - 45 IS - 3 SN - 0022-4561, 0022-4561 KW - environment protection KW - environmental legislation KW - government policies KW - government policy KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - legislation KW - nature conservation KW - USA KW - natural resources KW - land use KW - resource management KW - Q5 08523:Conservation, wildlife management and recreation KW - P 9000:ENVIRONMENTAL ACTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16322522?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Soil+and+Water+Conservation&rft.atitle=Wilderness+management%3A+Has+it+come+of+age%3F.&rft.au=Cole%2C+D+N&rft.aulast=Cole&rft.aufirst=D&rft.date=1990-01-01&rft.volume=45&rft.issue=3&rft.spage=360&rft.isbn=&rft.btitle=&rft.title=Journal+of+Soil+and+Water+Conservation&rft.issn=00224561&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - nature conservation; natural resources; legislation; environmental legislation; resource management; land use; government policies; USA ER - TY - JOUR T1 - Chromosome mapping in Pseudomonas syringae pv. syringae strain PS224. AN - 16301329; 2815998 AB - A conjugation system for mapping the chromosome of Pseudomonas syringae pv. syringae PS224 has been developed using the IncP-10 plasmid R91-5; pMO22, a Tn501-loaded derivative of R91-5; and pMO75, R91-5 loaded with Tn5. Nine different donor origins were identified with R91-5 and pMO22. By insertion of Tn5 into various sites of the chromosome, an additional six donor origins were available using pMO75 as the donor plasmid. In all, 36 markers were located on three linkage groups. Many donor strains were unstable and the limited availability of stable donor strains has limited the extent to which markers have been located. This instability of donor strains is in marked contrast to the highly stable donor strains found in P. putida using the same plasmids. As in P. aeruginosa and P. putida , auxotrophic markers in P. syringae do not show the clustering of related markers found in enterobacteria. JF - Microbiology AU - Nordeen, RO AU - Holloway, B W AD - USDA Agric. Res. Serv., Plant Mol. Biol. Lab., Beltsville, MD 20705, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 1231 EP - 1239 VL - 136 IS - 7 SN - 0022-1287, 0022-1287 KW - Genetics Abstracts; Biochemistry Abstracts 2: Nucleic Acids; Microbiology Abstracts B: Bacteriology KW - genes KW - site-directed mutagenesis KW - nucleotide sequence KW - genetic analysis KW - plasmids KW - Pseudomonas putida KW - Pseudomonas syringae KW - N 14640:Structure & sequence KW - G 07320:Bacterial genetics KW - J 02740:Genetics and evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16301329?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Microbiology&rft.atitle=Chromosome+mapping+in+Pseudomonas+syringae+pv.+syringae+strain+PS224.&rft.au=Nordeen%2C+RO%3BHolloway%2C+B+W&rft.aulast=Nordeen&rft.aufirst=RO&rft.date=1990-01-01&rft.volume=136&rft.issue=7&rft.spage=1231&rft.isbn=&rft.btitle=&rft.title=Microbiology&rft.issn=00221287&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pseudomonas syringae; Pseudomonas putida; plasmids; nucleotide sequence; genes; site-directed mutagenesis; genetic analysis ER - TY - JOUR T1 - Metal content of fungal sporocarps from urban, rural, and sludge-treated sites. AN - 16249003; 2770256 AB - Fungal sporocarps can influence metal cycling by the uptake of trace metals, which are then readily available for consumption and incorporation into higher food chain levels. This study was conducted to determine if increased sporocarp metal concentrations occurred relative to substrate metal availability in rural, urban, smelter impacted or municipal sewage sludge-treated sites. Fungal fruiting bodies were collected from rural forests, from urban forests receiving point-source metal pollution and from forests that had been treated with municipal sewage sludge. Metal concentrations in fungal sporocarps were found to be significantly higher on sewage sludge-treated sites when all species were considered. Smelter pollution and serpentinite soil, however, were also found to elevate some metals to levels similar to those found at sludge-amended areas. Individual species appear to be the most important factor for predicting metal uptake from impacted soils and possible inclusion into food chains. JF - Journal of Environmental Quality AU - Zabowski, D AU - Zasoski, R J AU - Littke, W AU - Ammirati, J AD - For. Sci. Lab., USDA-FS PNW Res. Stn., 1133 N. Western Ave., Wenatchee, WA 98801, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 372 EP - 377 VL - 19 IS - 3 SN - 0047-2425, 0047-2425 KW - sporocarps KW - sludges KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - rural environments KW - food chains KW - bioaccumulation KW - fungi KW - metals KW - urban environments KW - K 03099:Pollution KW - A 01055:Other soil treatments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16249003?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Metal+content+of+fungal+sporocarps+from+urban%2C+rural%2C+and+sludge-treated+sites.&rft.au=Zabowski%2C+D%3BZasoski%2C+R+J%3BLittke%2C+W%3BAmmirati%2C+J&rft.aulast=Zabowski&rft.aufirst=D&rft.date=1990-01-01&rft.volume=19&rft.issue=3&rft.spage=372&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - fungi; metals; bioaccumulation; urban environments; rural environments; food chains ER - TY - JOUR T1 - Effect of conventional vs. no-tillage on pesticide leaching to shallow groundwater. AN - 16246830; 2768632 AB - A field site was established at Beltsville, MD, USA, in 1986 to assess the effect of conventional and no-till cultural practices on the movement of pesticides into shallow groundwater. Groundwater samples taken from unconfined (< 1.5 m deep) and confined (< 3 m deep) monitoring wells in 1986-1988 were analyzed for atrazine (6-chloro-N-ethyl-N'-(1-methylethyl)-1,3,5-triazine-2,4-diamine), deethylatrazine (6-chloro-N-(1-methylethyl)-1,3,5-triazine-2,4-diamine), alachlor (2-chloro-N-(2,6-diethylphenyl)-N-(methoxymethyl)-acetamide), cyanazine (2-((4-chloro-6-(ethylamino)-1,3,5-triazine-2-yl)amino)-2-methylpr opanenitrile), and carbofuran (2,3-dihydro-2,2-dimethyl-7-benzofuranyl methylcarbamate). Pesticide residues in unconfined groundwater were usually higher (ca. 2 to 4x) than in confined groundwater. Rainfall timing relative to pesticide application was critically important to pesticide leaching. JF - Journal of Environmental Quality AU - Isensee, A R AU - Nash, R G AU - Helling, C S AD - USDA-ARS, Beltsville Agric. Res. Cent., Build. 050, BARC-West, Beltsville, MD 20705, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 434 EP - 440 VL - 19 IS - 3 SN - 0047-2425, 0047-2425 KW - USA, Maryland, Beltsville KW - inland water environment KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - groundwater pollution KW - agricultural runoff KW - Freshwater KW - pesticides KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16246830?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Effect+of+conventional+vs.+no-tillage+on+pesticide+leaching+to+shallow+groundwater.&rft.au=Isensee%2C+A+R%3BNash%2C+R+G%3BHelling%2C+C+S&rft.aulast=Isensee&rft.aufirst=A&rft.date=1990-01-01&rft.volume=19&rft.issue=3&rft.spage=434&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - inland water environment; agricultural runoff; groundwater pollution; pesticides; Freshwater ER - TY - JOUR T1 - Nutritional status of elderly smokers and non-smokers. AN - 16244235; 2772817 AB - Nutrient intake and biochemical nutrient markers were compared for 87 smoking and 637 non-smoking elderly residents of the Boston area. Intakes were estimated with three-day diet records and nutrient supplement use histories for vitamin A, thiamine, riboflavin, vitamin B6 and B12, folate, vitamin C, zinc, calcium, iron and magnesium. Smokers' dietary intakes of all nutrients except for vitamin B12 and zinc were significantly lower than non-smokers' intakes after adjustment for age and sex. Biochemical markers of nutritional status included plasma retinol, total carotenoids and vitamin E; erythrocyte enzyme activity coefficients for thiamine, riboflavin and vitamin B6; plasma vitamin B12, folate and vitamin C; and serum zinc, calcium, iron and magnesium. Lower blood levels of carotenoids, retinol, riboflavin, vitamin C and magnesium and higher levels of calcium were seen in smokers compared to non-smokers after adjustment for age and sex. JF - J. NUTR. MED. AU - Sulsky, SI AU - Jacques, P F AU - Jacob, R A AU - Hartz, S C AD - Epidemiol. Program, USDA Human Nutr. Res. Cent. Aging, Tufts Univ., Boston, MA 02111, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 187 EP - 194 VL - 1 IS - 3 KW - Toxicology Abstracts KW - geriatrics KW - smoking KW - man KW - nutritional status KW - X 24180:Social poisons & drug abuse UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16244235?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=J.+NUTR.+MED.&rft.atitle=Nutritional+status+of+elderly+smokers+and+non-smokers.&rft.au=Sulsky%2C+SI%3BJacques%2C+P+F%3BJacob%2C+R+A%3BHartz%2C+S+C&rft.aulast=Sulsky&rft.aufirst=SI&rft.date=1990-01-01&rft.volume=1&rft.issue=3&rft.spage=187&rft.isbn=&rft.btitle=&rft.title=J.+NUTR.+MED.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - smoking; nutritional status; geriatrics; man ER - TY - JOUR T1 - Dissolved and suspended solids transport from Coastal Plain watersheds. AN - 16233922; 2758669 AB - This study was conducted to determine the concentrations and loads of dissolved and suspended solids in Coastal Plain stream-flow; to examine relationships between concentrations, loads, and flow rate; and to determine overall streamflow water quality for these parameters. Dissolved solids and suspended sediment concentrations were determined on weekly or high-flow storm event streamflow samples collected at gaging stations on three subwatersheds (B, 334.3 km super(2); F, 114.9 km super(2); and K, 16.7 km super(2)) of the Little River Watersheds located near Tifton, GA. Overall, the study showed that, as measured on these watersheds, Coastal Plain streamflow is of good quality in terms of both dissolved and suspended solids. This good quality may reflect land-use practices designed to prevent soil erosion, but primarily reflects the Coastal Plain landform shape, which causes sediments eroded from the uplands to be deposited in the riparian zone before they can enter streamflow. JF - Journal of Environmental Quality AU - Hubbard, R K AU - Sheridan, J M AU - Marti, L R AD - USDA-ARS, Southeast Watershed Res. Lab., Tifton, GA 31793, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 413 EP - 420 VL - 19 IS - 3 SN - 0047-2425, 0047-2425 KW - USA, Georgia, Tifton, Little R. KW - dissolved inorganic matter KW - stream flow KW - suspended load KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - water quality KW - erosion KW - suspended particulate matter KW - Freshwater KW - resuspended sediments KW - land use KW - Q2 09264:Sediments and sedimentation KW - P 2000:FRESHWATER POLLUTION KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16233922?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Dissolved+and+suspended+solids+transport+from+Coastal+Plain+watersheds.&rft.au=Hubbard%2C+R+K%3BSheridan%2C+J+M%3BMarti%2C+L+R&rft.aulast=Hubbard&rft.aufirst=R&rft.date=1990-01-01&rft.volume=19&rft.issue=3&rft.spage=413&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - water quality; erosion; suspended particulate matter; dissolved inorganic matter; stream flow; resuspended sediments; land use; suspended load; Freshwater ER - TY - JOUR T1 - Modeling linked watershed and lake processes for water quality management decisions. AN - 16232611; 2761074 AB - A physically based modeling approach is used to link watershed with lake processes and to simulate their responses to land management and weather conditions. Components of the watershed model, AGNPS (agricultural nonpoint-source model), are hydrology, erosion, sediment transport, transport of nitrogen and phosphorus, and chemical oxygen demand. Using a cellular structure, runoff, sediment, and chemical variables from the watershed provide input to a lake model. This one-dimensional model of water bodies simulates temperature stratification, mixing by wind, sedimentation, inflow density current, and algal growth. Unsteady advection-diffusion equations characterize the dynamics of suspended sediment, soluble and sediment-attached N and P, and chlorophyll. This model, AGNPS-LAKE, is driven by random generation of weather conditions on a daily basis. Resulting impacts of alternative management plans are simulated by changing agricultural practices and land use, thereby modifying inflow characteristics to a lake. JF - Journal of Environmental Quality AU - Summer, R M AU - Alonso, C V AU - Young, R A AD - USDA-ARS, Box 1430, Durant, OK 74702-1430, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 421 EP - 427 VL - 19 IS - 3 SN - 0047-2425, 0047-2425 KW - AGNPS-LAKE KW - eutrophic lakes KW - lake basins KW - nutrients (mineral) KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - water quality KW - erosion KW - lakes KW - Freshwater KW - resuspended sediments KW - meteorology KW - hydrology KW - agriculture KW - mathematical models KW - USA, Minnesota KW - runoff KW - management KW - land use KW - P 2000:FRESHWATER POLLUTION KW - Q5 08502:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16232611?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Modeling+linked+watershed+and+lake+processes+for+water+quality+management+decisions.&rft.au=Summer%2C+R+M%3BAlonso%2C+C+V%3BYoung%2C+R+A&rft.aulast=Summer&rft.aufirst=R&rft.date=1990-01-01&rft.volume=19&rft.issue=3&rft.spage=421&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - hydrology; water quality; erosion; lakes; agriculture; mathematical models; resuspended sediments; lake basins; runoff; eutrophic lakes; nutrients (mineral); management; meteorology; land use; USA, Minnesota; Freshwater ER - TY - JOUR T1 - Ergobalansine, a new ergot-type peptide alkaloid isolated from Cenchrus echinatus (sandbur grass) infected with Balansia obtecta , and produced in liquid cultures of B. obtecta and Balansia cyperi . AN - 16230125; 2765406 AB - An EtOH extract of Cenchrus echinatus (sandbur grass) infected with Balansia obtecta , a fungal endophyte of the Clavicipitaceae, has yielded ergobalansine, a new ergot-type alkaloid. Ergobalansine is a peptide derivative of lysergic acid, but differs from from other known ergopeptine alkaloids in that the characteristic proline residue has been replaced by an alanine residue. The structure of ergobalansine was determined by analysis of super(1)H nmr, super(13)C nmr, and mass spectra of the parent compound and of hte C-8 epimer (ergobalansinine) and by comparison of these to spectra of the common ergopeptine alkaloids. JF - J. NAT. PROD. (LLOYDIA). AU - Powell, R G AU - Plattner, R D AU - Yates, S G AU - Clay, K AU - Leuchtmann, A AD - Bioactive Constituents Res., USDA/ARS Northern Reg. Res. Cent., 1815 N. University St., Peoria, IL 61604, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 1272 EP - 1279 VL - 53 IS - 5 KW - Balansia obtecta KW - alkaloids KW - ergobalansine KW - ergobalansinine KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - structure KW - endophytes KW - Cenchrus echinatus KW - liquid culture KW - ergot KW - K 03040:Fungi KW - A 01002:Acids, amino acids, peptides & proteins UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16230125?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=J.+NAT.+PROD.+%28LLOYDIA%29.&rft.atitle=Ergobalansine%2C+a+new+ergot-type+peptide+alkaloid+isolated+from+Cenchrus+echinatus+%28sandbur+grass%29+infected+with+Balansia+obtecta+%2C+and+produced+in+liquid+cultures+of+B.+obtecta+and+Balansia+cyperi+.&rft.au=Powell%2C+R+G%3BPlattner%2C+R+D%3BYates%2C+S+G%3BClay%2C+K%3BLeuchtmann%2C+A&rft.aulast=Powell&rft.aufirst=R&rft.date=1990-01-01&rft.volume=53&rft.issue=5&rft.spage=1272&rft.isbn=&rft.btitle=&rft.title=J.+NAT.+PROD.+%28LLOYDIA%29.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Cenchrus echinatus; liquid culture; endophytes; structure; ergot ER - TY - JOUR T1 - Isolation of Leptospira interrogans serovar bratislava from stillborn and weak pigs in Iowa. AN - 16192242; 2726462 AB - Leptospira interrogans serovar bratislava was isolated from a herd of swine in Iowa with a history of stillborn and weak neonatal pigs. Placentas, kidneys, and lungs of stillborn and weak pigs from 3 litters were processed to detect leptospires by use of bacteriologic culture and fluorescent antibody testing. Sera from stillborn and weak pigs were tested to detect agglutinating antibody against leptospires. Small numbers of leptospires were sometimes detected in tissues by use of the fluorescent antibody test. Serovar bratislava was isolated from placentas, stillborn pigs or weak pigs from each of the 3 litters. JF - Journal of the American Veterinary Medical Association AU - Bolin, CA AU - Cassells, JA AD - USDA, Agric. Res. Serv., Natl. Anim. Dis. Cent., P.O. Box 70, Ames, IA 50010, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 1601 EP - 1604 VL - 196 IS - 10 SN - 0003-1488, 0003-1488 KW - pigs KW - Microbiology Abstracts B: Bacteriology KW - agglutination KW - media (isolation) KW - Leptospira interrogans KW - placenta KW - fluorescent antibody test KW - bacteriology KW - J 02862:Infection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16192242?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Veterinary+Medical+Association&rft.atitle=Isolation+of+Leptospira+interrogans+serovar+bratislava+from+stillborn+and+weak+pigs+in+Iowa.&rft.au=Bolin%2C+CA%3BCassells%2C+JA&rft.aulast=Bolin&rft.aufirst=CA&rft.date=1990-01-01&rft.volume=196&rft.issue=10&rft.spage=1601&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Veterinary+Medical+Association&rft.issn=00031488&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Leptospira interrogans; media (isolation); bacteriology; agglutination; placenta; fluorescent antibody test ER - TY - JOUR T1 - Diameter measurement in bald cypress. AN - 16114906; 2670734 AB - The usual practice of measuring diameter at 4.5 feet (1.3 m) or D sub(bh) is meaningless in wetland tree species such as bald cypress (Taxodium distichum (L.) Rich.), due to the presence of fluted basal swells. Since buttress dimensions usually have no consistent relation to volume or form in the tree, the current practice among life-sciences professionals is to measure stem diameter 18 in (50 cm) above "pronounced" butt swelling. This measure is termed normal diameter (D sub(n)). The paper contrasts the use of six fixed-height diameter-measurement points ranging from 6 ft (1.8 m) to 11 ft (3.4 m) against D sub(n) (a variable-height measurement point) for predicting cubic volume. Results show an increase in precision using the upper five fixed-height measurements over D sub(n) and a considerable increase in precision using diameter measured at 10 ft (3.0 m) and 11 ft (3.4 m). Since results improved only slightly using diameter measured at 11 ft (3.4 m) over 10 ft (3.0 m), diameter at 10 ft (D sub(10)) is recommended as a better alternative than D sub(n) for working with cypress. JF - Forest Ecology and Management AU - Parresol, B R AU - Hotvedt, JE AD - Inst. Quant. Stud., South. Forest Exp. Stn., USDA Forest Serv., 701 Loyola Ave., New Orleans, LA 70113, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 509 EP - 515 VL - 33-34 IS - 1-4 SN - 0378-1127, 0378-1127 KW - analytical techniques KW - diameter KW - measuring techniques KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - wetlands KW - Taxodium distichum KW - Freshwater KW - measurement KW - size KW - D 04635:Conifers KW - Q1 08382:Ecological techniques and apparatus KW - D 04001:Methodology - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16114906?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Diameter+measurement+in+bald+cypress.&rft.au=Parresol%2C+B+R%3BHotvedt%2C+JE&rft.aulast=Parresol&rft.aufirst=B&rft.date=1990-01-01&rft.volume=33-34&rft.issue=1-4&rft.spage=509&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - wetlands; analytical techniques; size; measurement; measuring techniques; Taxodium distichum; Freshwater ER - TY - JOUR T1 - Inventory technology: "Ebb tides", "flash floods" and "whirlpools". AN - 16113628; 2671479 AB - The development and implementation of inventory techniques are cyclic. For a long while, our inventory procedures in the USDA Forest Service have been rather stable. Now, given new information requirements and an onslaught of new technology, our needs, capabilities, and methodologies are rapidly changing. This paper reviews past ("ebb tides") and emerging techniques ("flash floods"). It also lists some of the problems ("whirlpools") we will encounter in implementing the changes. While the paper addresses resource inventories within the USDA Forest service, the potential and problems are applicable to the inventory of any ecosystem including the forested wetlands. Lastly, some thoughts for follow-up global actions are presented. JF - Forest Ecology and Management AU - Lund, H G AD - USDA Forest Serv., Timber Manage. Staff, P.O. Box 96090, Washington, DC 20090-6090, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 559 EP - 570 VL - 33-34 IS - 1-4 SN - 0378-1127, 0378-1127 KW - biological surveys KW - methodology KW - reviews KW - vegetation cover KW - vegetation patterns KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - forests KW - community composition KW - inventories KW - wetlands KW - Q1 08382:Ecological techniques and apparatus KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16113628?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Inventory+technology%3A+%22Ebb+tides%22%2C+%22flash+floods%22+and+%22whirlpools%22.&rft.au=Lund%2C+H+G&rft.aulast=Lund&rft.aufirst=H&rft.date=1990-01-01&rft.volume=33-34&rft.issue=1-4&rft.spage=559&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - forests; community composition; inventories; wetlands; vegetation cover; biological surveys; reviews ER - TY - JOUR T1 - Composition and vulnerability of bottomland hardwood forests of the coastal plain province in the South Central United States. AN - 16110450; 2670522 AB - A past history of declines in forest area affirms the need for documentation on the extent and species composition of today's bottomland hardwood ecosystem. This paper summarizes the forest composition and related vulnerability of bottomland hardwood forests using data from the many existing resource bulletins and the current inventory data base maintained by the USDA Forest Service. These forests support a complex mix of tree species. The 6.1 million-ha ecosystem is common in three physiographic sections of the Province. The East and West Gulf sections are typified by moist-site cover types, with stands widely dispersed. The Mississippi Alluvial Plain contains both moist- and wet-site cover types. Southern portions of the Mississippi Alluvial Plain are characterized by wet-site cover types with stands being concentrated spatially. Cover types are susceptible to varying degrees of human-induced disturbance, which may ultimately lead to permanent removal of forest cover. JF - Forest Ecology and Management AU - McWilliams, W H AU - Rosson, JF Jr AD - USDA Forest Serv., South. Forest Exp. Stn., Box 906, Starkville, MS 39759, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 485 EP - 501 VL - 33-34 IS - 1-4 SN - 0378-1127, 0378-1127 KW - USA, Coastal Plain Province KW - spatial distribution KW - species composition KW - vegetation cover KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - forests KW - community composition KW - environmental impact KW - development projects KW - coastal zone KW - USA KW - Q1 08463:Habitat community studies KW - D 04125:Temperate forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16110450?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Composition+and+vulnerability+of+bottomland+hardwood+forests+of+the+coastal+plain+province+in+the+South+Central+United+States.&rft.au=McWilliams%2C+W+H%3BRosson%2C+JF+Jr&rft.aulast=McWilliams&rft.aufirst=W&rft.date=1990-01-01&rft.volume=33-34&rft.issue=1-4&rft.spage=485&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - forests; coastal zone; community composition; vegetation cover; environmental impact; development projects; spatial distribution; USA ER - TY - JOUR T1 - Dimensional weights and forage of Barclay willow and sweetgale on moose ranges in the wetlands of the Copper River Delta, Alaska. AN - 16110045; 2670568 AB - Above-ground shoots of Barclay willow (Salix barclayi ) and sweetgale (Myrica gale var. tomentosa ) from shrub-swamp on the wetlands of the Copper River Delta, Alaska, were harvested at the early-growth, full-growth, and early-dormancy stages of growth. Seven dimensional measurements (vertical height, basal stem diameter, upper stem diameter, basal stem length, crown depth, maximum crown diameter, second crown diameter) were made on each above-ground shoot before harvest. The cross-sectional area of the crown was calculated from crown diameters and also used as a non-destructive measurement. Each shoot was sorted into four individual (basal stem, branch, terminal twig, leaf) and two combined (crown wood, total above-ground) dimensional weight categories and the oven-dry weights of each category determined. Measurements were used as independent variables in forward, stepwise multiple regression to develop a "best model" estimator of mean dimensional weight at each growth stage. JF - Forest Ecology and Management AU - Thilenius, J F AD - USDA, Pacific Northwest Forest Stn., For. Sci. Lab., P.O. Box 20909, Juneau, AK 99802-0909, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 463 EP - 483 VL - 33-34 IS - 1-4 SN - 0378-1127, 0378-1127 KW - Myrica gale tomentosa KW - USA, Alaska, Copper R. Delta KW - food resources KW - growth KW - weight KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - biomass KW - wetlands KW - Salix barclayi KW - Freshwater KW - D 04640:Other angiosperms KW - Q1 08463:Habitat community studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16110045?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Dimensional+weights+and+forage+of+Barclay+willow+and+sweetgale+on+moose+ranges+in+the+wetlands+of+the+Copper+River+Delta%2C+Alaska.&rft.au=Thilenius%2C+J+F&rft.aulast=Thilenius&rft.aufirst=J&rft.date=1990-01-01&rft.volume=33-34&rft.issue=1-4&rft.spage=463&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - wetlands; biomass; food resources; Salix barclayi; Freshwater ER - TY - JOUR T1 - Use of AVHRR imagery for large-scale forest inventories. AN - 16108425; 2670627 AB - Satellite-based remote-sensing observations provide a continuous source of data useful for evaluating forest vegetation over large areas. The Advanced Very High Resolution Radiometer (AVHRR) sensor aboard the National Oceanic and Atmospheric Administration's (NOAA's) series of polar-orbiting environmental satellites is well suited for large-scale studies, providing worldwide coverage daily in five spectral bands with a spatial resolution of 1.1 km. Research is being conducted by the Forest Inventory and Analysis unit of the Southern Forest Experiment Station, USDA Forest Service, on the use of AVHRR data for forest-inventory applications. Digital image data from the AVHRR sensor were used in an unsupervised clustering procedure to produce generalized land-cover classifications of three states in the southern United States. JF - Forest Ecology and Management AU - Teuber, K B AD - USDA For. Serv., South. Forest Exp. Stn., P.O. Box 906, Starkville, MS 39759, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 621 EP - 631 VL - 33-34 IS - 1-4 SN - 0378-1127, 0378-1127 KW - Advanced Very High Resolution Radiometer KW - biological surveys KW - remote sensing KW - satellite sensing KW - vegetation cover KW - vegetation surveys KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - USA, South KW - forests KW - USA KW - satellites KW - D 04125:Temperate forests KW - D 04002:Surveying and remote sensing KW - Q1 08383:Biogeography and biogeographic regions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16108425?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Use+of+AVHRR+imagery+for+large-scale+forest+inventories.&rft.au=Teuber%2C+K+B&rft.aulast=Teuber&rft.aufirst=K&rft.date=1990-01-01&rft.volume=33-34&rft.issue=1-4&rft.spage=621&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - forests; vegetation cover; satellite sensing; satellites; biological surveys; vegetation surveys; USA, South; USA ER - TY - JOUR T1 - Effect of second-generation European corn borers and stalk rot fungi on popcorn hybrids. AN - 16096407; 2655682 AB - A 3-year study was conducted to determine the effects of 2nd-generation European corn borer (ECB), Ostrinia nubilalis (Huebner) and stalk rot (SR) fungi on six popcorn hybrids. Total and harvestable yield losses were due to either ECB or SR or a summation of the two, with no loss due to an interaction. SR inoculation slightly increased ECB infestation while infestation by ECB considerably increased incidence of SR. Popcorn hybrid P206 has a low level of resistance to ECB and had less yield loss due to ECB infestation than did other hybrids. Popping expansion was slightly reduced by both ECB infestation and SR infection in all popcorn hybrids tested. JF - Maydica AU - Jarvis, J L AU - Ziegler, KE AU - Webber, D F AU - Guthrie, W D AD - Corn Insects Res. Unit, Agric. Res. Serv., USDA, Ankeny, IA 55021, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 259 EP - 265 VL - 35 IS - 3 SN - 0025-6153, 0025-6153 KW - Zea mays KW - effects on KW - hybrids KW - popcorn KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Microbiology Abstracts A: Industrial & Applied Microbiology; Genetics Abstracts KW - disease resistance KW - plant breeding KW - Ostrinia nubilalis KW - fungi KW - stalk rot KW - K 03089:Fungi: plant KW - A 01030:General KW - A 01026:Gramineous crops KW - G 07357:GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16096407?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Maydica&rft.atitle=Effect+of+second-generation+European+corn+borers+and+stalk+rot+fungi+on+popcorn+hybrids.&rft.au=Jarvis%2C+J+L%3BZiegler%2C+KE%3BWebber%2C+D+F%3BGuthrie%2C+W+D&rft.aulast=Jarvis&rft.aufirst=J&rft.date=1990-01-01&rft.volume=35&rft.issue=3&rft.spage=259&rft.isbn=&rft.btitle=&rft.title=Maydica&rft.issn=00256153&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Ostrinia nubilalis; plant breeding; stalk rot; fungi; disease resistance ER - TY - JOUR T1 - A culture unit system for the study of responses of mycorrhizal and non-mycorrhizal seedlings to treatments. AN - 16094587; 2654713 AB - The culture unit described was designed to provide a method whereby the experimental condition of the substrate solution can be maintained or manipulated while retaining the axenic integrity of the system. The culture unit was equipped with a modified polypropylene lid allowing entry and exit of treatment solutions that had been previously sterilized. Loblolly pine (Pinus taeda L.) inoculated by Pisolithus tinctorius (Pers.) Coker and Couch was grown axenically for up to six months in this culture unit system. Growth of roots and mycorrhizal morphology in this system were similar to those observed in other systems. JF - Plant and Soil AU - Melhuish, JH Jr AU - Wong, B L AU - McQuattie, C J AD - USDA Forest Serv., Northeast. Forest Exp. Stn., Berea, KY 40403, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 157 EP - 163 VL - 129 IS - 2 SN - 0032-079X, 0032-079X KW - Pisolithus tinctorius KW - pure culture KW - growth KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - roots KW - Pinus taeda KW - mycorrhizas KW - A 01047:General KW - K 03096:Mycorrhiza UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16094587?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Plant+and+Soil&rft.atitle=A+culture+unit+system+for+the+study+of+responses+of+mycorrhizal+and+non-mycorrhizal+seedlings+to+treatments.&rft.au=Melhuish%2C+JH+Jr%3BWong%2C+B+L%3BMcQuattie%2C+C+J&rft.aulast=Melhuish&rft.aufirst=JH&rft.date=1990-01-01&rft.volume=129&rft.issue=2&rft.spage=157&rft.isbn=&rft.btitle=&rft.title=Plant+and+Soil&rft.issn=0032079X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinus taeda; roots; mycorrhizas ER - TY - JOUR T1 - Artificial mixing of spermatozoa from honeybees and evidence for sperm competition. AN - 16089594; 2652695 AB - In each of 6 experiments, about 300 mu l of honeybee (Apis mellifera L.) semen was diluted, mixed, and used to inseminate about 20 queens. In two experiments having semen mixtures with about 50% marked sperm, the 95% confidence interval for percent marked progeny was plus or minus 9 multiplied by 7% among the 22 queens in group 1 (semen was diluted 1:1 and stirred for 3--5 min) and plus or minus 9 multiplied by 0% among the 16 queens in group 6 (semen diluted 1:40 and centrifuged). The confidence intervals were similar and both were significantly greater than plus or minus 4 multiplied by 5% (expected 95% confidence interval when sampling a perfect mix with 500 workers from each queen) (P < 0 multiplied by 01). In experiments having a very low frequency of marked spermatozoa in the mixture (1%, 2%, and 4%), at least one marked worker was found among the 500 progeny from each queen (n = 68 queens), even when insemination doses were < 0 multiplied by 2% of the total semen mixture. JF - Journal of Apicultural Research AU - Harbo, J R AD - Agric. Res. Serv., USDA, Honey Bee Breed., Genet. and Physiol. Res., Baton Rouge, LA 70820, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 151 EP - 158 VL - 29 IS - 3 SN - 0021-8839, 0021-8839 KW - sperm competition KW - Entomology Abstracts; Ecology Abstracts; Animal Behavior Abstracts KW - Apis mellifera KW - Hymenoptera KW - Apidae KW - D 04659:Insects KW - Y 25423:Insects KW - Z 05192:Reproductive behavior UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16089594?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Apicultural+Research&rft.atitle=Artificial+mixing+of+spermatozoa+from+honeybees+and+evidence+for+sperm+competition.&rft.au=Harbo%2C+J+R&rft.aulast=Harbo&rft.aufirst=J&rft.date=1990-01-01&rft.volume=29&rft.issue=3&rft.spage=151&rft.isbn=&rft.btitle=&rft.title=Journal+of+Apicultural+Research&rft.issn=00218839&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Apis mellifera; Apidae; Hymenoptera ER - TY - JOUR T1 - Field evaluation of granular starch formulations of Bacillus thuringiensis against Ostrinia nubilalis (Lepidoptera: Pyralidae). AN - 16035779; 2599094 AB - Bacillus thuringiensis subsp. kurstaki Berliner was encapsulated within corn-starch granules with the feeding stimulant Coax or the UV screen Congo red and tested at two field sites against European corn borer, Ostrinia nubilalis (Huebner), feeding in whorl-stage corn. These tests were done to determine the relative effect of these additives on efficacy of starch-encapsulated B. thuringiensis . At both sites, all treatments with B. thuringiensis significantly reduced tunneling by O. nubilalis . At one site, significant effects of addition of the phagostimulant were observed. When Coax was added at 1 or 10% of starch dry weight with 400 international units (IU) B. thuringiensis per mg dry granule weight, response of O. nubilalis was equivalent to that obtained with granules containing no feeding stimulant and 1,600 IU/mg. Also, granules with Coax and 400 IU/mg gave a response similar to that obtained from the commercial product Dipel 10G formulated at 1,600 IU/mg. At the other site, the effect of phagostimulant was not significant, primarily because O. nubilalis infestation levels were too low for precise discrimination among treatments. JF - Journal of Economic Entomology AU - McGuire, M R AU - Shasha, B S AU - Lewis, L C AU - Bartelt, R J AU - Kinney, K AD - USDA-ARS, Plant Polym. Res., North. Reg. Res. Cent., Peoria, IL 61604, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 2207 EP - 2210 VL - 83 IS - 6 SN - 0022-0493, 0022-0493 KW - field trials KW - Bacillus thuringiensis KW - subsp.kurstaki KW - Bacillus thuringiensis kurstaki KW - Lepidoptera KW - Ostrinia nubilalis KW - Pyralidae KW - biological control KW - Entomology Abstracts; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - A 01014:Others KW - W 30513:Pest control KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16035779?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Field+evaluation+of+granular+starch+formulations+of+Bacillus+thuringiensis+against+Ostrinia+nubilalis+%28Lepidoptera%3A+Pyralidae%29.&rft.au=McGuire%2C+M+R%3BShasha%2C+B+S%3BLewis%2C+L+C%3BBartelt%2C+R+J%3BKinney%2C+K&rft.aulast=McGuire&rft.aufirst=M&rft.date=1990-01-01&rft.volume=83&rft.issue=6&rft.spage=2207&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Ostrinia nubilalis; Bacillus thuringiensis kurstaki; Pyralidae; Lepidoptera; biological control ER - TY - CONF T1 - Watershed-scale responses to ozone events in a Pinus strobus L. plantation. AN - 16027156; 2590705 AB - High O sub(3) levels during the 1984 growing season in the southern Appalachian Mountains caused extensive damage to a 28 yr old white pine plantation on a 13.4 ha watershed at the Coweeta Hydrologic Laboratory. Ozone stress effects included premature senescence and loss of foliage, stimulation of pine seedling germination, reduced basal area increment, and small but measurable increases in NO sub(3) super(-)-N and K super(+) concentrations in stream water. There were no observable effects of O sub(3) damage on nutrient concentrations of stemwood and foliage but net nutrient accumulation was reduced due to lower stemwood production. Ozone injury did not predispose trees to root pathogens or bark beetle infestations. JF - Water, Air, & Soil Pollution AU - Swank, W T AU - Vose, J M Y1 - 1990 PY - 1990 DA - 1990 SP - 119 EP - 133 VL - 54 IS - special KW - watersheds KW - Appalachian Mts. KW - Pollution Abstracts KW - nutrients KW - ozone KW - Pinus strobus KW - P 0000:AIR POLLUTION KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16027156?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water%2C+Air%2C+%26+Soil+Pollution&rft.atitle=Watershed-scale+responses+to+ozone+events+in+a+Pinus+strobus+L.+plantation.&rft.au=Swank%2C+W+T%3BVose%2C+J+M&rft.aulast=Swank&rft.aufirst=W&rft.date=1990-01-01&rft.volume=54&rft.issue=special&rft.spage=119&rft.isbn=&rft.btitle=&rft.title=Water%2C+Air%2C+%26+Soil+Pollution&rft.issn=00496979&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Resistance of endophyte-infected plants of tall fescue and perennial ryegrass to the Russian wheat aphid (Homoptera: Aphididae). AN - 16014692; 2589519 AB - Fewer aphids of the Russian wheat aphid, Diuraphis noxia (Mordvilko), were found on tall fescue and perennial ryegrass plants harboring systemic fungal endophytes than on endophyte-free plants in laboratory tests. These results indicate that enhanced resistance in some perennial grasses to D. noxia is associated with the presence of endophytic fungi. JF - Journal of the Kansas Entomological Society AU - Clement, S L AU - Pike, K S AU - Kaiser, W J AU - Wilson, AD AD - USDA-ARS, Plant Germplasm Introd. and Testing Res. Unit, Washington State Univ., Pullman, WA 99164-6402, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 646 EP - 648 VL - 63 IS - 4 SN - 0022-8567, 0022-8567 KW - Diuraphis noxia KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology; Entomology Abstracts KW - Festuca arundinacea KW - endophytes KW - Aphididae KW - pest resistance KW - Lolium perenne KW - Homoptera KW - K 03010:Fungi KW - A 01030:General KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16014692?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Kansas+Entomological+Society&rft.atitle=Resistance+of+endophyte-infected+plants+of+tall+fescue+and+perennial+ryegrass+to+the+Russian+wheat+aphid+%28Homoptera%3A+Aphididae%29.&rft.au=Clement%2C+S+L%3BPike%2C+K+S%3BKaiser%2C+W+J%3BWilson%2C+AD&rft.aulast=Clement&rft.aufirst=S&rft.date=1990-01-01&rft.volume=63&rft.issue=4&rft.spage=646&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Kansas+Entomological+Society&rft.issn=00228567&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Festuca arundinacea; Lolium perenne; Aphididae; Homoptera; pest resistance; endophytes ER - TY - JOUR T1 - The National Biological Impact Assessment Program. AN - 16011887; 2589992 AB - The need to safely field test genetically modified organisms is a critical step in the sequence of research leading to the commercialization of biotechnology in agriculture. To address this need the United States Department of Agriculture has established the National Biological Impact Assessment Program (NBIAP) to facilitate the safe field testing of genetically modified organisms. NBIAP fosters safe field testing of genetically modified organisms through a computerized network for information exchange, facilitation of biological monitoring techniques and by providing support for research in biosafety to develop new field testing methods and better predictive models. JF - Toxicological and Environmental Chemistry AU - MacKenzie AU - Larson, J AD - Natl. Biol. Impact Assess. Program, USDA/CSRS, 330 Aerospace Build., 901 D St. SW, Washington, DC 20251-2200, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 115 EP - 120 VL - 28 IS - 2-3 SN - 0277-2248, 0277-2248 KW - toxicity testing KW - National Biological Impact Assessment Program KW - description KW - agricultural lands KW - field trials KW - genetically engineered microorganisms KW - Biotechnology and Bioengineering Abstracts; Toxicology Abstracts KW - X 24240:Miscellaneous KW - W 30000:General topics and reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16011887?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+and+Environmental+Chemistry&rft.atitle=The+National+Biological+Impact+Assessment+Program.&rft.au=MacKenzie%3BLarson%2C+J&rft.aulast=MacKenzie&rft.aufirst=&rft.date=1990-01-01&rft.volume=28&rft.issue=2-3&rft.spage=115&rft.isbn=&rft.btitle=&rft.title=Toxicological+and+Environmental+Chemistry&rft.issn=02772248&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - field trials; genetically engineered microorganisms ER - TY - JOUR T1 - Population performance of Thrips palmi (Thysanoptera: Thripidae) on cucumber infected with a mosaic virus. AN - 16003583; 2566018 AB - Densities of larval, adult, and total populations of melon thrips, Thrips palmi Karny, a nonvector, were significantly higher on leaves of cucumber infected with watermelon mosaic virus 1 than on healthy cucumber leaves. Diseased leaves were also significantly smaller and contained lower levels of nitrogen than healthy leaves. Possible mechanisms affecting the thrips population differences between infected and healthy plants are discussed. JF - Proceedings of the Hawaiian Entomological Society AU - Culliney, T W AD - USDA Forest Serv., Northeast. Forest Exp. Stn., 51 Mill Pond Rd., Hamden, CT 06514, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 85 EP - 90 VL - 30 SN - 0073-134X, 0073-134X KW - Thrips palmi KW - Cucumis sativum KW - mosaic virus KW - watermelon mosaic virus KW - Virology & AIDS Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Entomology Abstracts KW - Thysanoptera KW - population dynamics KW - Thripidae KW - A 01028:Others KW - Z 05207:Agricultural & general applied entomology KW - V 22183:Symptomatology, pathology & etiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16003583?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Hawaiian+Entomological+Society&rft.atitle=Population+performance+of+Thrips+palmi+%28Thysanoptera%3A+Thripidae%29+on+cucumber+infected+with+a+mosaic+virus.&rft.au=Culliney%2C+T+W&rft.aulast=Culliney&rft.aufirst=T&rft.date=1990-01-01&rft.volume=30&rft.issue=&rft.spage=85&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Hawaiian+Entomological+Society&rft.issn=0073134X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Thripidae; Thysanoptera; population dynamics ER - TY - JOUR T1 - Inhibition of the hypersensitive response in tobacco by pectate lyase digests of cell wall and of polygalacturonic acid. AN - 15997480; 2566411 AB - A close association exists between induction of the bacterial hypersensitive response (HR) and stimulation of a prolonged net H super(+) uptake/K super(+) efflux in tobacco cells. The key role played by K super(+) in cellular metabolism suggests that this specific loss of K super(+) may play a critical role in HR. We previously reported that pectate lyase: (1) prevents the HR in tobacco leaves; and (2) stimulates a transient H super(+) decrease (pH increase) and K super(+) increase in supernatants of suspension cells. In addition we found that subsequent exposure of suspension cells to pectate lyase did not elicit additional transient K super(+)/H super(+) responses. The latter results suggested that pectate lyase pretreatment may prevent HR by preventing cells from undergoing the prolonged K super(+)/H super(+) response. The present study demonstrates that treatment of tobacco cell walls with this enzyme results in a heat stable digest which closely mimics the enzyme itself in ability to alter these plant responses. JF - Physiological and Molecular Plant Pathology AU - Baker, C J AU - Mock, N AU - Atkinson, M M AU - Hutcheson, S AD - USDA, ARS, Microbiol. and Plant Pathol. Lab., Beltsville, MD 20705, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 155 EP - 167 VL - 37 IS - 3 SN - 0885-5765, 0885-5765 KW - bacteria KW - plant diseases KW - inhibition KW - cell walls KW - hydrolysates KW - hydrolysis KW - potassium KW - efflux KW - protons KW - uptake KW - polygalacturonic acid KW - pectate lyase KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - hypersensitive response KW - Nicotiana tabacum KW - host-pathogen interactions KW - A 01028:Others KW - J 02880:Plant diseases UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15997480?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physiological+and+Molecular+Plant+Pathology&rft.atitle=Inhibition+of+the+hypersensitive+response+in+tobacco+by+pectate+lyase+digests+of+cell+wall+and+of+polygalacturonic+acid.&rft.au=Baker%2C+C+J%3BMock%2C+N%3BAtkinson%2C+M+M%3BHutcheson%2C+S&rft.aulast=Baker&rft.aufirst=C&rft.date=1990-01-01&rft.volume=37&rft.issue=3&rft.spage=155&rft.isbn=&rft.btitle=&rft.title=Physiological+and+Molecular+Plant+Pathology&rft.issn=08855765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Nicotiana tabacum; hypersensitive response; host-pathogen interactions ER - TY - JOUR T1 - Blood preparation for flow cytometry to identify triploidy in grass carp. AN - 15993222; 2564760 AB - Blood from grass carp (Ctenopharyngodon idella ), ranging in size between 50 and 450 g, was prepared for flow cytometry with fewer steps than have previously been recorded. Two hundred fifty ploidy determinations have been made in 2 h by a two-person team with much less effort than had previously been the norm. This technique compares favorably in efficiency to and is reportedly more accurate than the Coulter counter because of the direct measurement of blood DNA content. JF - Progressive Fish-Culturist AU - Pine, R T AU - Anderson, LWJ AD - USDA, ARS, Aquat. Weed Control Res. Lab., Univ. California, Davis, CA 95616, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 266 EP - 268 VL - 52 IS - 4 SN - 0033-0779, 0033-0779 KW - fish culture KW - flow cytometry KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA Aquaculture Abstracts KW - Ctenopharyngodon idella KW - polyploids KW - DNA KW - aquaculture techniques KW - blood KW - Freshwater KW - measurement KW - Q3 08582:Fish culture KW - Q1 08582:Fish culture UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15993222?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Progressive+Fish-Culturist&rft.atitle=Blood+preparation+for+flow+cytometry+to+identify+triploidy+in+grass+carp.&rft.au=Pine%2C+R+T%3BAnderson%2C+LWJ&rft.aulast=Pine&rft.aufirst=R&rft.date=1990-01-01&rft.volume=52&rft.issue=4&rft.spage=266&rft.isbn=&rft.btitle=&rft.title=Progressive+Fish-Culturist&rft.issn=00330779&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - polyploids; DNA; aquaculture techniques; blood; measurement; Ctenopharyngodon idella; Freshwater ER - TY - JOUR T1 - Phylogenetic relationships among species of Sterigmatomyces and Fellomyces as determined from partial rRNA sequences. AN - 15980334; 2549978 AB - Sequence comparisons of selected regions from small (18S) and large (25S) subunit rRNAs were used to examine species relationships in the anamorphic yeast genera Sterigmatomyces, Fellomyces, Tsuchiyaea , and Kurtzmanomyces . On the basis of sequence similarity, the genus Sterigmatomyces is comprised of Sterigmatomyces halophilus and Sterigmatomyces elviae , while the genus Fellomyces contains three recognized species, Fellomyces fuzhouensis, Fellomyces penicillatus , and Fellomyces polyborus . Tsuchiyaea wingfieldii and Kurtzmanomyces nectairii are well separated from the other species which we examined. Comparisons with selected teleomorphs indicated that the genus Fellomyces is closely related to the genus Sterigmatosporidium , whereas the genus Sterigmatomyces exhibited somewhat closer relatedness with the genus Leucosporidium . JF - International Journal of Systematic Bacteriology AU - Gueho, E AU - Kurtzman, C P AU - Peterson, S W AD - North. Reg. Res. Cent., Agric. Res. Serv., USDA, Peoria, IL 61604, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 60 EP - 65 VL - 40 IS - 1 SN - 0020-7713, 0020-7713 KW - Sterigmatomyces halophilus KW - genetic relationship KW - Sterigmatomyces elviae KW - Fellomyces penicillatus KW - Fellomyces polyborus KW - rRNA 25S KW - rRNA 18S KW - Genetics Abstracts; Biochemistry Abstracts 2: Nucleic Acids; Microbiology Abstracts B: Bacteriology KW - nucleotide sequence KW - Fellomyces fuzhouensis KW - J 02726:RNA and ribosomes KW - G 07320:Bacterial genetics KW - N 14540:Structure, sequence & physical properties KW - J 02740:Genetics and evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15980334?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Systematic+Bacteriology&rft.atitle=Phylogenetic+relationships+among+species+of+Sterigmatomyces+and+Fellomyces+as+determined+from+partial+rRNA+sequences.&rft.au=Gueho%2C+E%3BKurtzman%2C+C+P%3BPeterson%2C+S+W&rft.aulast=Gueho&rft.aufirst=E&rft.date=1990-01-01&rft.volume=40&rft.issue=1&rft.spage=60&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Systematic+Bacteriology&rft.issn=00207713&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Fellomyces fuzhouensis; nucleotide sequence ER - TY - JOUR T1 - Effects of preventing periparturient hypocalcemia in cows by parathyroid hormone administration on hematology, conglutinin, immunoglobulin, and shedding of Staphylococcus aureus in milk. AN - 15978280; 2544557 AB - The effects of hypocalcemia at parturition on concentrations of serum immunoglobulin and conglutinin, number of bacteria shed into milk, and leukograms of dairy cows were investigated from -4 wk prepartum to 4 wk postpartum. Ten healthy multiparous Holstein cows were fed a high calcium diet to induce hypocalcemia at parturition. Five cows received intramuscular parathyroid hormone to prevent hypocalcemia at parturition. All cows experienced a leukopenia (attributable to an absolute and relative neutropenia) during the 1st wk after calving, decreased serum conglutinin activity during the first 3 wk postpartum, and decreased concentration of serum IgG sub(1) during the 3 wk before calving. At parturition, a large increase in organisms was found in foremilk (1000 to 10,000 times more than prepartum values). Neither the hematological changes nor the decreased immunoglobulin concentration was influenced by hypocalcemia or the development of milk fever. This implies that the degree of hypocalcemia observed did not have a large or irreversible influence on bacterial infection, hematological, or humoral immunity changes in periparturient cows. JF - Journal of Dairy Science AU - Kehrli, ME Jr AU - Goff, J P AU - Harp, JA AU - Thurston, J R AU - Norcross, N L AD - Miner. Metab. and Mastitis Res. Lab., Natl. Anim. Dis. Cent., USDA-Agric. Res. Serv., Ames, IA 50010, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 2103 EP - 2111 VL - 73 IS - 8 SN - 0022-0302, 0022-0302 KW - Staphylococcus aureus KW - haematology KW - shedding KW - cattle KW - parathyroid hormone KW - Calcium & Calcified Tissue Abstracts; Microbiology Abstracts B: Bacteriology KW - immunoglobulins KW - hypocalcemia KW - milk KW - parturition KW - J 02861:Microflora KW - T 20056:Parathyroid and parathyroid hormones UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15978280?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Dairy+Science&rft.atitle=Effects+of+preventing+periparturient+hypocalcemia+in+cows+by+parathyroid+hormone+administration+on+hematology%2C+conglutinin%2C+immunoglobulin%2C+and+shedding+of+Staphylococcus+aureus+in+milk.&rft.au=Kehrli%2C+ME+Jr%3BGoff%2C+J+P%3BHarp%2C+JA%3BThurston%2C+J+R%3BNorcross%2C+N+L&rft.aulast=Kehrli&rft.aufirst=ME&rft.date=1990-01-01&rft.volume=73&rft.issue=8&rft.spage=2103&rft.isbn=&rft.btitle=&rft.title=Journal+of+Dairy+Science&rft.issn=00220302&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - milk; parturition; hypocalcemia; immunoglobulins ER - TY - JOUR T1 - Malachius ulkei Horn (Coleoptera: Malachiidae): An egg predator of Paleacrita vernata Peck (Lepidoptera: Geometridae). AN - 15978122; 2550789 AB - In late April and early May of 1979-1981 larvae of Malachius ulkei Horn were found under loose bark on Siberian elm, Ulmus pumila L., Feeding on eggs of spring cankerworm, Paleacrita vernata Peck. Late instars of M. ulkei migrate from surrounding fields to elms ca. 7 to 10 days before elm buds expand; ca. 21 to 24 days later the M. ulkei larvae pupate under loose bark. In laboratory investigations, it was found that larvae ate 62.8 plus or minus 31.0 eggs in 19.5 plus or minus 4.6 days before pupating in 1979 and 222.1 plus or minus 135.0 eggs in 23.3 plus or minus 3.8 days in 1980. the duration of pupation was from 7 to 14 days. After mating, females laid tan eggs singly in and under the bark and in loose debris on the tree. Young larvae were not found in the tree; they apparently leave the tree shortly after hatching. JF - Journal of the Kansas Entomological Society AU - Dix, ME AD - USDA Forest Serv., For. Sci. Lab., East Campus, Univ. Nebraska, Lincoln, NE 68583-0822, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 648 EP - 652 VL - 63 IS - 4 SN - 0022-8567, 0022-8567 KW - Malachius ulkei KW - Ecology Abstracts; Entomology Abstracts KW - Paleacrita vernata KW - Coleoptera KW - predation KW - Lepidoptera KW - Malachiidae KW - eggs KW - Geometridae KW - D 04659:Insects KW - Z 05199:Feeding UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15978122?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Kansas+Entomological+Society&rft.atitle=Malachius+ulkei+Horn+%28Coleoptera%3A+Malachiidae%29%3A+An+egg+predator+of+Paleacrita+vernata+Peck+%28Lepidoptera%3A+Geometridae%29.&rft.au=Dix%2C+ME&rft.aulast=Dix&rft.aufirst=ME&rft.date=1990-01-01&rft.volume=63&rft.issue=4&rft.spage=648&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Kansas+Entomological+Society&rft.issn=00228567&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Malachiidae; Coleoptera; Paleacrita vernata; Geometridae; Lepidoptera; predation; eggs ER - TY - JOUR T1 - Forage quality of rillscale (Atriplex suckleyi ) grown on amended bentonite mine spoil. AN - 15943363; 2524717 AB - At peak standing crop, rillscale (Atriplex suckleyi ) foliage grown on amended bentonite mine spoil contained adequate digestible energy, crude protein, and all mineral elements except phosphorus necessary for cattle, sheep, antelope, and deer. Amendments (sawdust, NPK, gypsum) generally did not affect forage quality. Iron, manganese, aluminum, sodium, and potassium concentrations were high and may have adversely affected forage quality. Forage utility would be limited to a few months during the growing season. JF - Great Basin Naturalist AU - Voorhees, ME AD - USDA Forest Serv., Rocky Mt. Forest and Range Exp. Stn., Rapid City, SD 57701, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 57 EP - 62 VL - 50 IS - 1 SN - 0017-3614, 0017-3614 KW - food quality KW - bentonite KW - mine spoil KW - Ecology Abstracts KW - grazing KW - Atriplex suckleyi KW - livestock KW - D 04640:Other angiosperms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15943363?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Great+Basin+Naturalist&rft.atitle=Forage+quality+of+rillscale+%28Atriplex+suckleyi+%29+grown+on+amended+bentonite+mine+spoil.&rft.au=Voorhees%2C+ME&rft.aulast=Voorhees&rft.aufirst=ME&rft.date=1990-01-01&rft.volume=50&rft.issue=1&rft.spage=57&rft.isbn=&rft.btitle=&rft.title=Great+Basin+Naturalist&rft.issn=00173614&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Atriplex suckleyi; grazing; livestock ER - TY - JOUR T1 - Effects of dwarf mistletoe on growth and mortality of Douglas-fir in the Southwest. AN - 15940048; 2524751 AB - The effects of dwarf mistletoe (Arceuthobium douglasii ) on growth and mortality of Douglas-fir (Pseudotsuga menziesii ) were studied on 387 plots in mixed-conifer stands in three national forests in New Mexico and two in Arizona. Analyses of 8,570 trees showed that low infection ratings (dwarf mistletoe classes 1 or 2) had no significant effect on tree growth, but that losses increased markedly as infection severity increased. Average volume growth losses for trees over 10 inches in diameter were: dwarf mistletoe class 3, 10%; class 4, 25%; class 5, 45%; and class 6, 65%. Mortality of Douglas-fir in stands severely infested with dwarf mistletoe was three to four times that of healthy stands. These high losses confirm the need for silvicultural control of Douglas-fir dwarf mistletoe in the Southwest. JF - Great Basin Naturalist AU - Mathiasen, R L AU - Hawksworth, F G AU - Edminster, C B AD - Forest Pest Manage., USDA Forest Serv., 324 25th St., Ogden, UT 84401, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 173 EP - 179 VL - 50 IS - 2 SN - 0017-3614, 0017-3614 KW - growth KW - Ecology Abstracts KW - Arceuthobium douglasii KW - parasitism KW - USA, Southwest KW - mortality KW - Pseudotsuga menziesii KW - D 04635:Conifers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15940048?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Great+Basin+Naturalist&rft.atitle=Effects+of+dwarf+mistletoe+on+growth+and+mortality+of+Douglas-fir+in+the+Southwest.&rft.au=Mathiasen%2C+R+L%3BHawksworth%2C+F+G%3BEdminster%2C+C+B&rft.aulast=Mathiasen&rft.aufirst=R&rft.date=1990-01-01&rft.volume=50&rft.issue=2&rft.spage=173&rft.isbn=&rft.btitle=&rft.title=Great+Basin+Naturalist&rft.issn=00173614&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Arceuthobium douglasii; Pseudotsuga menziesii; USA, Southwest; mortality; parasitism ER - TY - JOUR T1 - Strategies of nutrient transport by ruminal bacteria. AN - 15919130; 2500284 AB - The survival of bacteria in natural environments like the rumen depends on the ability of the bacteria to scavenge nutrients. It is now evident that ruminal bacteria use a variety of transport mechanisms. Hydrophobic substances, such as ammonia and acetate, are permeable to the lipid bilayers of cell membranes and can be taken up by passive diffusion. Hydrophilic compounds (e.g., sugars, amino acids, peptides) do not easily pass through lipid bilayers and must be transported across cell membranes on carrier proteins. Facilitated diffusion can display saturable kinetics but does not result in accumulation of solute. Active transport can establish extremely high concentration gradients, and this work may be driven by the hydrolysis of chemical bonds (e.g., ATP) or iron gradients, which are coupled to solute symport. Many solute symports involve protons, but sodium systems also are common in ruminal bacteria. The phosphotransferase system chemically modifies sugars as they pass across the cell membrane, and several ruminal bacteria have this method of group translocation. JF - Journal of Dairy Science AU - Russell, J B AU - Strobel, HJ AU - Martin, SA AD - Agric. Res. Serv., USDA, Cornell Univ., Ithaca, NY 14853, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 2996 EP - 3012 VL - 73 IS - 10 SN - 0022-0302, 0022-0302 KW - rumen microorganisms KW - transport KW - diffusion KW - active transport KW - bacteria KW - cell membranes KW - nutrients KW - Biochemistry Abstracts 1: Biological Membranes (till 1993); Microbiology Abstracts B: Bacteriology KW - J 02721:Cell cycle, morphology and motility KW - J 02861:Microflora UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15919130?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Dairy+Science&rft.atitle=Strategies+of+nutrient+transport+by+ruminal+bacteria.&rft.au=Russell%2C+J+B%3BStrobel%2C+HJ%3BMartin%2C+SA&rft.aulast=Russell&rft.aufirst=J&rft.date=1990-01-01&rft.volume=73&rft.issue=10&rft.spage=2996&rft.isbn=&rft.btitle=&rft.title=Journal+of+Dairy+Science&rft.issn=00220302&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - bacteria; nutrients; cell membranes ER - TY - JOUR T1 - Glycine-Glomus-Bradyrhizobium symbiosis. X. Relationships between leaf gas exchange and plant and soil water status in nodulated, mycorrhizal soybean under drought stress. AN - 15911676; 2497876 AB - Soybean (Glycine max (L.) Merr.) plants were colonized by the vesicular-arbuscular mycorrhizal (VAM) fungus Glomus mosseae (Nicol. and Gerd. and Trappe (VAM plants) or fertilized with KH sub(2)PO sub(4) (nonVAM plants) and grown for 50 days under controlled conditions. Plants were harvested over a 4-day period during which the soil was permitted to dry slowly. The harvest was terminated when leaf gas exchange was no longer measurable due to drought stress. Significantly different effects in shoot water content, but not in shoot water potential, were found in VAM and nonVAM plants in response to drought stress. Leaf conductances of the two treatments showed similar response patterns to changes in soil water and shoot water potential but were significantly different in magnitude and trend relative to shoot water content. The relationships between transpiration, CO sub(2) exchange and water-use efficiency (WUE) were the same in VAM and nonVAM plants in response to decreasing soil water and shoot water potential. As a function of shoot water content, however, WUE showed different response patterns in VAM and nonVAM plants. JF - Plant Physiology AU - Bethlenfalvay, G J AU - Brown AU - Franson, R L AD - USDA, ARS, West. Reg. Res. Cent., Albany, CA 94710, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 723 EP - 728 VL - 94 IS - 2 SN - 0032-0889, 0032-0889 KW - vesicular-arbuscular mycorrhizas KW - effects on KW - Ecology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Bradyrhizobium KW - Glycine max KW - water stress KW - symbiosis KW - A 01047:General KW - J 02901:Soil and plants KW - K 03096:Mycorrhiza KW - D 04620:Microorganisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15911676?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Plant+Physiology&rft.atitle=Glycine-Glomus-Bradyrhizobium+symbiosis.+X.+Relationships+between+leaf+gas+exchange+and+plant+and+soil+water+status+in+nodulated%2C+mycorrhizal+soybean+under+drought+stress.&rft.au=Bethlenfalvay%2C+G+J%3BBrown%3BFranson%2C+R+L&rft.aulast=Bethlenfalvay&rft.aufirst=G&rft.date=1990-01-01&rft.volume=94&rft.issue=2&rft.spage=723&rft.isbn=&rft.btitle=&rft.title=Plant+Physiology&rft.issn=00320889&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Bradyrhizobium; Glycine max; symbiosis; water stress ER - TY - JOUR T1 - Communities of filamentous fungi and yeast in decomposing logs of Pseudotsuga menziesii . AN - 15909358; 2506244 AB - We investigated the communities of filamentous fungi and yeasts in logs in advanced stages of decay. Decay stages are generally defined from class I-V, with class I being the least decayed and class V being the most decayed. Fungi were isolated from cross-sections approximately 15 cm thick of Pseudotsuga menziesii logs in decay classes III and IV. Cross sections included portions of logs with and without conifer seedlings. Samples were removed from three vertical positions (top, middle, and bottom) of each cross-section. Comparisons of coefficient of community and detrended correspondence analysis ordinations indicated differences in community structure between class III and class IV logs. No community differences were found between samples with and without conifer seedlings. A total of 18 genera and 36 species of fungi were recovered from samples; more than 50% of recovered genera were dematiaceous hyphomycetes. JF - Mycologia AU - Crawford, R H AU - Carpenter, SE AU - Harmon, ME AD - Pacific Northwest Res. Stn., USDA, Forest Serv., Corvallis, OR 97331, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 759 EP - 765 VL - 82 IS - 6 SN - 0027-5514, 0027-5514 KW - fungi KW - analysis KW - logs KW - Ecology Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - community composition KW - communities KW - filamentous microorganisms KW - decomposition KW - Pseudotsuga menziesii KW - yeasts KW - D 04635:Conifers KW - D 04623:Fungi KW - K 03010:Fungi UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15909358?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mycologia&rft.atitle=Communities+of+filamentous+fungi+and+yeast+in+decomposing+logs+of+Pseudotsuga+menziesii+.&rft.au=Crawford%2C+R+H%3BCarpenter%2C+SE%3BHarmon%2C+ME&rft.aulast=Crawford&rft.aufirst=R&rft.date=1990-01-01&rft.volume=82&rft.issue=6&rft.spage=759&rft.isbn=&rft.btitle=&rft.title=Mycologia&rft.issn=00275514&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pseudotsuga menziesii; yeasts; communities; decomposition; filamentous microorganisms; community composition ER - TY - JOUR T1 - Decreased growth temperature increases soybean stearoyl-acyl carrier protein desaturase activity. AN - 15903604; 2488655 AB - Developing soybean (Glycine max ) seeds respond to a change in growth temperature by changing the level of stearoyl acyl carrier protein desaturase activity in the tissue. After 20 hours in liquid culture, seeds grown at 20 degree C show an increase in activity while seeds grown at 35 degree C show a decrease in activity, relative to their preculture levels. Analysis of the enzyme from both growth conditions shows the change not to be due to induction of kinetically distinct isoenzymes. JF - Plant Physiology AU - Cheesbrough, T M AD - USDA, ARS, Seed Biosynth. Res. Unit, North. Reg. Res. Cent., 1815 N. University St., Peoria, IL 61604, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 555 EP - 559 VL - 93 IS - 2 SN - 0032-0889, 0032-0889 KW - Glycine max KW - activity KW - correlation KW - desaturase KW - enhancement KW - reduction KW - stearoyl-acyl carrier protein KW - temperature KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15903604?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Plant+Physiology&rft.atitle=Decreased+growth+temperature+increases+soybean+stearoyl-acyl+carrier+protein+desaturase+activity.&rft.au=Cheesbrough%2C+T+M&rft.aulast=Cheesbrough&rft.aufirst=T&rft.date=1990-01-01&rft.volume=93&rft.issue=2&rft.spage=555&rft.isbn=&rft.btitle=&rft.title=Plant+Physiology&rft.issn=00320889&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Mixed function oxidase inhibitors affect production of the off-flavor microbial metabolite geosmin. AN - 15897194; 2489178 AB - Geosmin (1,10-trans-dimethyl-trans-(9)-decalol) is produced by the filamentous bacteria Streptomyces tendae Ettlinger and imparts an intense muddy "off-flavor" which degrades the quality of drinking water and pond-raised fish. The effects of the cytochrome P sub(450) mixed-function oxidase inhibitors piperonyl butoxide ( alpha -(2-(2-butoxyethyoxy)ethoxy)-4,5-(methylenedioxy)-2-propyltoluene) , and MGK-264 (N-octyl bicycloheptene dicarboximide) on dry matter, pigment, and geosmin production were determined in S. tendae . Neither piperonyl butoxide nor MGK-264 affected dry matter production, but both compounds decreased pigment synthesis compared to untreated controls. Exposure to MGK-264 and piperonyl butoxide produced differing effects on geosmin production. Piperonyl butoxide (300 mu M) induced approximately a 400% increase in geosmin levels, while MGK-264 (300 mu M) reduced geosmin levels approximately 40% compared to untreated controls. JF - Pesticide Biochemistry and Physiology AU - Dionigi, C P AU - Greene, DA AU - Millie, D F AU - Johnsen, P B AD - USDA, ARS, South. Reg. Res. Cent., Food Flavor Qual. Lab., P.O. Box 19687, New Orleans, LA 70179, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 76 EP - 80 VL - 38 IS - 1 SN - 0048-3575, 0048-3575 KW - N-octyl bicycloheptene dicarboximide KW - Streptomyces tendae KW - alpha -(2-(2-butoxyethyoxy)ethoxy)-4,5-(methylenedioxy)-2-propyl-toluen e KW - biosynthesis KW - geosmin KW - inhibitors KW - off flavor KW - oxidase KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Chemoreception Abstracts KW - R 18122:Taints & off-flavors KW - J 02728:Enzymes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15897194?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Pesticide+Biochemistry+and+Physiology&rft.atitle=Mixed+function+oxidase+inhibitors+affect+production+of+the+off-flavor+microbial+metabolite+geosmin.&rft.au=Dionigi%2C+C+P%3BGreene%2C+DA%3BMillie%2C+D+F%3BJohnsen%2C+P+B&rft.aulast=Dionigi&rft.aufirst=C&rft.date=1990-01-01&rft.volume=38&rft.issue=1&rft.spage=76&rft.isbn=&rft.btitle=&rft.title=Pesticide+Biochemistry+and+Physiology&rft.issn=00483575&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - inhibitors; off flavor ER - TY - JOUR T1 - Identification of restriction fragment length polymorphisms in DNA from Mycobacterium paratuberculosis . AN - 15895918; 2489798 AB - DNAs from 34 mycobactin-dependent isolates of Mycobacterium paratuberculosis and 1 isolate of M. paratuberculosis 18 were digested with four restriction endonucleases. Southern hybridization experiments were performed with a super(32)P-labeled oligonucleotide DNA probe derived from the sequence of IS900, an insertion sequence present in 15 to 20 copies per M. paratuberculosis chromosome. The probe hybridized with DNA from each of the mycobactin-dependent isolates, and restriction fragment length polymorphisms were detected among the isolates with each restriction endonuclease used. Restriction fragment length polymorphism analysis may permit identification of various strains of M. paratuberculosis , which has not been possible with other techniques. JF - Journal of Clinical Microbiology AU - Whipple, D AU - Kapke, P AU - Vary, C AD - Leptospirosis/Mycobact. Res. Unit, Natl. Anim. Dis. Cent., ARS, USDA, Ames, IA 50010, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 2561 EP - 2564 VL - 28 IS - 11 SN - 0095-1137, 0095-1137 KW - Mycobacterium paratuberculosis KW - Biochemistry Abstracts 2: Nucleic Acids; Microbiology Abstracts B: Bacteriology KW - restriction fragment length polymorphism KW - DNA KW - paratuberculosis KW - probes KW - N 14640:Structure & sequence KW - J 02740:Genetics and evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15895918?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Clinical+Microbiology&rft.atitle=Identification+of+restriction+fragment+length+polymorphisms+in+DNA+from+Mycobacterium+paratuberculosis+.&rft.au=Whipple%2C+D%3BKapke%2C+P%3BVary%2C+C&rft.aulast=Whipple&rft.aufirst=D&rft.date=1990-01-01&rft.volume=28&rft.issue=11&rft.spage=2561&rft.isbn=&rft.btitle=&rft.title=Journal+of+Clinical+Microbiology&rft.issn=00951137&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - DNA; restriction fragment length polymorphism; paratuberculosis; probes ER - TY - JOUR T1 - Evaluation of rillscale for herbivore forage on bentonite mine spoils. AN - 15890652; 2465754 AB - The forage quality of rillscale (Atriplex suckleyi ), a native annual species, was evaluated to assess its potential as herbivore forage on bentonite mine spoils. Production estimates were 3432 kg/ha with spoil treatment. Seasonal growth trends and forage quality indicate that rillscale has favorable nutritional qualities for large herbivores. Forage quality was respectable, with dry matter digestibility ranging from 56 percent to 80 percent. Metabolizable energy was 2.51 Mcal/kg and crude protein ranged from 5 to 12 percent. Data for eighteen elements that affect forage quality are presented. These show that rillscale has the capability for making a substantial contribution to the nutrition of large herbivores, although the potential exists for imbalances of iron, magnesium, and zinc. JF - Northwest Science AU - Voorhees, ME AU - Uresk, D W AD - USDA Forest Serv., Rocky Mt. Forest and Range Exp. Stn., Rapid City, SD 57701, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 181 EP - 186 VL - 64 IS - 4 SN - 0029-344X, 0029-344X KW - food quality KW - production KW - herbivory KW - bentonite KW - USA, Wyoming, Black Hills KW - Wyoming, Black Hills KW - Health & Safety Science Abstracts; Ecology Abstracts KW - mining KW - mines KW - environmental restoration KW - Atriplex suckleyi KW - H SE1.20:FORESTRY KW - D 04640:Other angiosperms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15890652?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Northwest+Science&rft.atitle=Evaluation+of+rillscale+for+herbivore+forage+on+bentonite+mine+spoils.&rft.au=Voorhees%2C+ME%3BUresk%2C+D+W&rft.aulast=Voorhees&rft.aufirst=ME&rft.date=1990-01-01&rft.volume=64&rft.issue=4&rft.spage=181&rft.isbn=&rft.btitle=&rft.title=Northwest+Science&rft.issn=0029344X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Atriplex suckleyi; mines; mining; environmental restoration; production; herbivory ER - TY - JOUR T1 - Use of culture filtrates of Ceratocystis ulmi as a bioassay to screen for disease tolerant Ulmus americana . AN - 15886600; 2470138 AB - Callus cultures of elm (Ulmus americana L.) derived from Dutch elm disease susceptible, intermediate-resistant, and resistant genotypes were exposed to the culture filtrates of three pathogenic isolates of Ceratocystis ulmi , the causal agent of Dutch elm disease. Callus fresh weights, cell viability, and reactions of stem cuttings were determined after exposure to various concentrations of the filtrates. Calli from the susceptible elm failed to increase in fresh weight and lost viability after exposure to media containing culture filtrate. Calli from the resistant and the intermediate-resistant elms exhibited growth rates and maintained viability similar to controls not exposed to culture filtrate. Stem cuttings of the susceptible elm wilted after exposure to the culture filtrate. The symptoms were similar to wilt seen with the disease. Cuttings from the resistant elm had no disease symptoms whereas, the intermediate elm had some leaf chlorosis. Callus screening may thus be useful for selection of Ulmus germplasm for Dutch elm disease resistance. JF - Plant Science AU - Pijut, P M AU - Domir, S C AU - Lineberger, R D AU - Schreiber, L R AD - USDA ARS, Nurs. Crops Res. Lab., 359 Main Rd., Delaware, OH 43015, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 191 EP - 196 VL - 70 IS - 2 SN - 0168-9452, 0168-9452 KW - Ulmus americana KW - screening KW - filtrates KW - Ceratocystis ulmi KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - disease resistance KW - Dutch elm disease KW - callus culture KW - K 03089:Fungi: plant KW - A 01045:Diseases & treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15886600?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Plant+Science&rft.atitle=Use+of+culture+filtrates+of+Ceratocystis+ulmi+as+a+bioassay+to+screen+for+disease+tolerant+Ulmus+americana+.&rft.au=Pijut%2C+P+M%3BDomir%2C+S+C%3BLineberger%2C+R+D%3BSchreiber%2C+L+R&rft.aulast=Pijut&rft.aufirst=P&rft.date=1990-01-01&rft.volume=70&rft.issue=2&rft.spage=191&rft.isbn=&rft.btitle=&rft.title=Plant+Science&rft.issn=01689452&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - disease resistance; Dutch elm disease; callus culture ER - TY - JOUR T1 - Immobilization of potato acid phosphatase on succinamidopropyl glass beads for the dephosphorylation of bovine whole casein. AN - 15883033; 2469297 AB - Potato acid phosphatase was immobilized on succinamidopropyl-derivatized glass beads for use in removing phosphate groups from bovine whole casein. Controlled pore glass beads (with and without glyceryl coating) were covalently bound to derivatized glass beads through carbodiimide coupling. JF - Journal of Dairy Science AU - van Hekken, DL AU - Thompson, M P AU - Strange, ED AD - USDA, ARS East. Reg. Res. Cent., 600 E. Mermaid Lane, Philadelphia, PA 19118, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 2720 EP - 2730 VL - 73 IS - 10 SN - 0022-0302, 0022-0302 KW - acid phosphatase KW - casein KW - dephosphorylation KW - immobilized enzymes KW - methodology KW - utilization KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Biotechnology and Bioengineering Abstracts KW - W 30220:Enzyme UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15883033?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Dairy+Science&rft.atitle=Immobilization+of+potato+acid+phosphatase+on+succinamidopropyl+glass+beads+for+the+dephosphorylation+of+bovine+whole+casein.&rft.au=van+Hekken%2C+DL%3BThompson%2C+M+P%3BStrange%2C+ED&rft.aulast=van+Hekken&rft.aufirst=DL&rft.date=1990-01-01&rft.volume=73&rft.issue=10&rft.spage=2720&rft.isbn=&rft.btitle=&rft.title=Journal+of+Dairy+Science&rft.issn=00220302&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Comparative studies of hepatotoxicity and fumonisin B sub(1) and B sub(2) content of water and chloroform/methanol extracts of Fusarium moniliforme) strain MRC 826 culture material. AN - 15882925; 2474266 AB - Fusarium moniliforme has been associated with several diseases including equine leukoencephalomalacia, human esophageal cancer and hepatotoxicity/hepatocarcinogenicity in laboratory animals. The potential health risks to animals and humans posed by F. moniliforme contaminated grains cannot be assessed until the toxins are identified and toxicologically evaluated. As part of a systematic approach to identifying the hepatotoxins produced by F. moniliforme , diets containing aqueous and chloroform/methanol (1:1) extracts of F. moniliforme strain MRC 826 culture material (CM) and/or the extracted CM residues were fed to male Sprague-Dawley rats for four weeks. Serum alanine aminotransferase, aspartate aminotransferase and alkaline phosphatase activities were increased after two and four weeks and microscopic liver lesions were found in those animals fed aqueous CM extract and the CM residue after chloroform/methanol extraction. JF - Mycopathologia AU - Voss, KA AU - Plattner, R D AU - Bacon, C W AU - Norred, W P AD - Toxicol. and Mycotoxin Res. Unit, Agric. Res. Serv., USDA, Richard B. Russell Agric. Res. Cent., P.O. Box 5677, Athens, GA 30613, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 81 EP - 92 VL - 112 IS - 2 SN - 0301-486X, 0301-486X KW - Fusarium moniliforme KW - toxicity KW - enzymatic activity KW - rats KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Toxicology Abstracts KW - toxins KW - liver KW - K 03082:Mycotoxins KW - X 24171:Microbial UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15882925?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mycopathologia&rft.atitle=Comparative+studies+of+hepatotoxicity+and+fumonisin+B+sub%281%29+and+B+sub%282%29+content+of+water+and+chloroform%2Fmethanol+extracts+of+Fusarium+moniliforme%29+strain+MRC+826+culture+material.&rft.au=Voss%2C+KA%3BPlattner%2C+R+D%3BBacon%2C+C+W%3BNorred%2C+W+P&rft.aulast=Voss&rft.aufirst=KA&rft.date=1990-01-01&rft.volume=112&rft.issue=2&rft.spage=81&rft.isbn=&rft.btitle=&rft.title=Mycopathologia&rft.issn=0301486X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - toxins; liver ER - TY - CONF T1 - The interaction between leaf longevity and shoot growth and foliar biomass per shoot in Pinus contorta at two elevations. AN - 15879888; 2460812 AB - Leaf longevity ranged from an average of 5 to 18 years in individual trees of lodgepole pine (Pinus contorta Dougl. ssp. latifolia D.K. Bailey) from six even-aged stands in central Colorado, USA, of which three were at an elevation of 2800 and three at an elevation of 3200 m. Leaf longevity was 38% greater and annual shoot growth increment was 33% less in trees growing at 3200 m than in trees growing at 2800 m elevation. There was no difference in leaf biomass per shoot between the trees at the two elevations. These results suggest that leaf longevity is greater on shoots with low annual growth potential. Thus, a slow-growing tree at high elevation (low annual shoot growth potential) can have the same amount of foliage per shoot as a fast-growing tree at lower elevation. JF - Tree Physiology AU - Schoettle, A W Y1 - 1990 PY - 1990 DA - 1990 SP - 209 EP - 214 VL - 7 IS - 1-4 KW - leaves KW - Ecology Abstracts KW - Pinus contorta latifolia KW - USA, Colorado KW - biomass KW - altitude KW - stems KW - longevity KW - growth KW - D 04635:Conifers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15879888?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tree+Physiology&rft.atitle=The+interaction+between+leaf+longevity+and+shoot+growth+and+foliar+biomass+per+shoot+in+Pinus+contorta+at+two+elevations.&rft.au=Schoettle%2C+A+W&rft.aulast=Schoettle&rft.aufirst=A&rft.date=1990-01-01&rft.volume=7&rft.issue=1-4&rft.spage=209&rft.isbn=&rft.btitle=&rft.title=Tree+Physiology&rft.issn=0829318X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - CONF T1 - ECOPHYS: An ecophysiological growth process model for juvenile poplar. AN - 15879309; 2460816 AB - The ECOPHYS model is an ecophysiological growth process model of juvenile poplar clones growing under near optimal conditions. The theoretical basis for the ECOPHYS model is that (1) individual leaves drive and control growth; (2) the microenvironment at the leaf exerts primary control of photosynthetic rates; (3) leaf orientation is a major determinant of that microenvironment, (4) photosynthates produced by leaves are allocated among meristematic and respiratory sinks; and (5) the plant's genome and microenvironment regulate photosynthate allocation. The major driving variables are solar radiation, temperature, and clonal morphological and physiological factors. The user can interact or override any or all of the input variables to examine the effects of such changes on photosynthetic production and growth. Verification and sensitivity analyses of ECOPHYS are presented and discussed. The use of ECOPHYS as a research tool is illustrated with several examples. Model potential and limitations are discussed. JF - Tree Physiology AU - Rauscher, H M AU - Isebrands, J G AU - Host, GE AU - Dickson, R E AU - Dickmann, DI AU - Crow, T R AU - Michael, DA Y1 - 1990 PY - 1990 DA - 1990 SP - 255 EP - 281 VL - 7 IS - 1-4 KW - ecophysiology KW - models KW - Ecology Abstracts KW - Populus KW - growth KW - D 04640:Other angiosperms KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15879309?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tree+Physiology&rft.atitle=ECOPHYS%3A+An+ecophysiological+growth+process+model+for+juvenile+poplar.&rft.au=Rauscher%2C+H+M%3BIsebrands%2C+J+G%3BHost%2C+GE%3BDickson%2C+R+E%3BDickmann%2C+DI%3BCrow%2C+T+R%3BMichael%2C+DA&rft.aulast=Rauscher&rft.aufirst=H&rft.date=1990-01-01&rft.volume=7&rft.issue=1-4&rft.spage=255&rft.isbn=&rft.btitle=&rft.title=Tree+Physiology&rft.issn=0829318X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - CONF T1 - Assessing seasonal leaf area dynamics and vertical leaf area distribution in eastern white pine (Pinus strobus L.) with a portable light meter. AN - 15877483; 2460807 AB - We evaluated the ability of a portable light meter (Sunfleck Ceptometer, Decagon Devices, Pullman, WA, USA) to quantify seasonal photosynthetically active radiation (PAR, 400-700 nm) interception, projected stand leaf area index (LAI), and vertical LAI distribution in a 32-year-old eastern white pine (Pinus strobus L.) plantation. Canopy PAR transmittance measured with the ceptometer was converted to LAI with the Beer-Lambert Equation. The ceptometer was sensitive to changes in PAR transmittance resulting from foliage growth. Predicted stand LAI ranged from 3.5 in the dormant season to a maximum of 5.3 in late July. Predicted LAI values were within 9% of values determined from destructive sampling. JF - Tree Physiology AU - Vose, J M AU - Swank, W T Y1 - 1990 PY - 1990 DA - 1990 SP - 125 EP - 134 VL - 7 IS - 1-4 KW - leaf area KW - seasonal variations KW - Ecology Abstracts KW - measuring techniques KW - Pinus strobus KW - light interception KW - D 04635:Conifers KW - D 04001:Methodology - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15877483?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tree+Physiology&rft.atitle=Assessing+seasonal+leaf+area+dynamics+and+vertical+leaf+area+distribution+in+eastern+white+pine+%28Pinus+strobus+L.%29+with+a+portable+light+meter.&rft.au=Vose%2C+J+M%3BSwank%2C+W+T&rft.aulast=Vose&rft.aufirst=J&rft.date=1990-01-01&rft.volume=7&rft.issue=1-4&rft.spage=125&rft.isbn=&rft.btitle=&rft.title=Tree+Physiology&rft.issn=0829318X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Taxonomic relatedness of Butyrivibrio , Lachnospira, Roseburia , and Eubacterium species as determined by DNA hybridization and extracellular-polysaccharide analysis. AN - 15874244; 2466827 AB - DNA hybridization and extracellular-polysaccharide (EPS) analyses were performed for 19 strains of Butyrivibrio fibrisolvens and six strains of Butyrivibrio crossotus, Lachnospira maltipara, Roseburia cecicola , and Eubacterium rectale . Both methods showed that these strains constitute a heterogeneous group of bacteria, and both methods sorted the strains into related groups. As determined by DNA analysis, 20 strains formed five separate groups of closely related bacteria. Nine of these strains were closely related to two previously established groups of B. fibrisolvens . The groups formed by EPS analysis were similar to those formed by DNA analysis. Our data suggest that for some groups of microorganisms EPS analysis may be a useful adjunct to DNA analysis to clarify complex taxonomic relationships. JF - International Journal of Systematic Bacteriology AU - Mannarelli, B M AU - Stack, R J AU - Lee, D AU - Ericsson, L AD - North. Reg. Res. Cent., ARS, USDA, 1815 N. University St., Peoria, IL 61604, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 370 EP - 378 VL - 40 IS - 4 SN - 0020-7713, 0020-7713 KW - Butyrivibrio fibrisolvens KW - Butyrivibrio crossotus KW - Lachnospira maltiparus KW - polysaccharides KW - Microbiology Abstracts B: Bacteriology KW - hybridization analysis KW - taxonomy KW - Eubacterium rectale KW - Roseburia cecicola KW - J 02710:Identification, taxonomy and typing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15874244?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Systematic+Bacteriology&rft.atitle=Taxonomic+relatedness+of+Butyrivibrio+%2C+Lachnospira%2C+Roseburia+%2C+and+Eubacterium+species+as+determined+by+DNA+hybridization+and+extracellular-polysaccharide+analysis.&rft.au=Mannarelli%2C+B+M%3BStack%2C+R+J%3BLee%2C+D%3BEricsson%2C+L&rft.aulast=Mannarelli&rft.aufirst=B&rft.date=1990-01-01&rft.volume=40&rft.issue=4&rft.spage=370&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Systematic+Bacteriology&rft.issn=00207713&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Roseburia cecicola; Eubacterium rectale; hybridization analysis; taxonomy ER - TY - CONF T1 - Validation of photosynthate production in ECOPHYS, an ecophysiological growth process model of Populus . AN - 15874016; 2460817 AB - A model of photosynthate production is the central component of a larger whole-tree ecophysiological growth process model for Populus (ECOPHYS). This photosynthesis model was validated by comparing predicted photosynthate production values for individual leaves and the total tree with hourly field measurements collected on four days spaced throughout a growing season. Simulated trees had identical numbers of leaves and leaf areas as the sample trees studied in the field, and hourly weather data collected on the plantation site were supplied as a model input. Total production for the four sample days ranged between 200 and 4900 mg CO sub(2) tree super(-1) day super(-1). Model predictions of total daily photosynthate production were within 12% of the observed rates for three of the four sampling days. Diurnal variations in stomatal conductance and ambient CO sub(2) concentrations and seasonal variations in area leaf weight were the primary sources of error. Total leaf area, proportion of sunlit leaf area, and photosynthetic efficiency were the most important factors influencing carbon dioxide exchange rates. JF - Tree Physiology AU - Host, GE AU - Rauscher, H M AU - Isebrands, J G AU - Michael, DA Y1 - 1990 PY - 1990 DA - 1990 SP - 283 EP - 296 VL - 7 IS - 1-4 KW - ecophysiology KW - models KW - Ecology Abstracts KW - photosynthesis KW - Populus KW - growth KW - D 04640:Other angiosperms KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15874016?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tree+Physiology&rft.atitle=Validation+of+photosynthate+production+in+ECOPHYS%2C+an+ecophysiological+growth+process+model+of+Populus+.&rft.au=Host%2C+GE%3BRauscher%2C+H+M%3BIsebrands%2C+J+G%3BMichael%2C+DA&rft.aulast=Host&rft.aufirst=GE&rft.date=1990-01-01&rft.volume=7&rft.issue=1-4&rft.spage=283&rft.isbn=&rft.btitle=&rft.title=Tree+Physiology&rft.issn=0829318X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - CONF T1 - Distribution and metabolism of current photosynthate by single-flush northern red oak seedlings. AN - 15873669; 2460802 AB - Carbon distribution and metabolism by northern red oak seedlings (Quercus rubra L.) were followed for 72 h after a 30-min photosynthetic exposure to super(14)CO sub(2). Approximately 50% of the assimilated carbon was lost during this time, presumably through respiration. Most of the super(14)C recovered in the plant remained in the source leaf. Most of the exported super(14)C was found in stems and especially roots. Position of the source leaf did not affect distribution of translocated super(14)C; however, upper source leaves retained slightly more super(14)C than lower source leaves. Most super(14)C in all tissues was found initially in sugars. Labeled carbon in this fraction decreased rapidly and increased in other chemical fractions, particularly residue (structural carbohydrates and lignin). JF - Tree Physiology AU - Dickson, R E AU - Isebrands, J G AU - Tomlinson, P T Y1 - 1990 PY - 1990 DA - 1990 SP - 65 EP - 77 VL - 7 IS - 1-4 KW - metabolism KW - carbon KW - Ecology Abstracts KW - Quercus rubra KW - translocation KW - seedlings KW - D 04640:Other angiosperms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15873669?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tree+Physiology&rft.atitle=Distribution+and+metabolism+of+current+photosynthate+by+single-flush+northern+red+oak+seedlings.&rft.au=Dickson%2C+R+E%3BIsebrands%2C+J+G%3BTomlinson%2C+P+T&rft.aulast=Dickson&rft.aufirst=R&rft.date=1990-01-01&rft.volume=7&rft.issue=1-4&rft.spage=65&rft.isbn=&rft.btitle=&rft.title=Tree+Physiology&rft.issn=0829318X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Secretion of Ricinus communis glyceraldehyde-3-phosphate dehydrogenase by Escherichia coli . AN - 15869613; 2464881 AB - A plasmid, pWEH1, was constructed containing a fusion of the DNA encoding the signal sequence of the Escherichia coli outer-membrane protein A to the 5'-end of a glyceraldehyde-3-phosphate dehydrogenase cDNA from Ricinus communis . When expressed in E. coli , the fusion protein was secreted by the normal membrane-potential-dependent pathway. Processing by signal peptidase was inhibited by low concentrations of phenethyl alcohol. Quantitative cell fractionation was used to show that the mature plant protein was associated with the bacterial outer membrane. The protein could not be released from the membrane by washing with alkaline sodium carbonate. Radioactivity from (U- super(14)C)-palmitate was incorporated into the heterologous protein. These results suggest that the sequence of this normally cytoplasmic enzyme contains a cryptic lipid-modification site. JF - Molecular Microbiology AU - Hekman, W E AU - Dennis, D T AU - Miernyk, JA AD - Seed Biosynth. Res. Unit, USDA, ARS North. Reg. Res. Cent., Peoria, IL 61604, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 1363 EP - 1369 VL - 4 IS - 8 SN - 0950-382X, 0950-382X KW - Escherichia coli KW - secretions KW - glyceraldehyde-3-phosphate dehydrogenase KW - Ricinus communis KW - cloning KW - gene expression KW - Biotechnology and Bioengineering Abstracts; Genetics Abstracts; Biochemistry Abstracts 2: Nucleic Acids; Microbiology Abstracts B: Bacteriology KW - W 30401:Enzymes and cofactors KW - J 02728:Enzymes KW - G 07357:GENERAL KW - N 14684:Expression of cloned genes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15869613?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Molecular+Microbiology&rft.atitle=Secretion+of+Ricinus+communis+glyceraldehyde-3-phosphate+dehydrogenase+by+Escherichia+coli+.&rft.au=Hekman%2C+W+E%3BDennis%2C+D+T%3BMiernyk%2C+JA&rft.aulast=Hekman&rft.aufirst=W&rft.date=1990-01-01&rft.volume=4&rft.issue=8&rft.spage=1363&rft.isbn=&rft.btitle=&rft.title=Molecular+Microbiology&rft.issn=0950382X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Ricinus communis; cloning; gene expression ER - TY - CONF T1 - Characteristics of high- and low-vigor lodgepole pine trees in old-growth stands. AN - 15867141; 2460815 AB - Lodgepole pine (Pinus contorta var. latifolia Engelm.) trees in an old stand differed widely in appearance. Some appeared healthy, with deep crowns, high leaf areas, nearly conical-shaped crown tops, and branches with live needles extending well back from the tip. Others with similar-sized boles appeared to be in a state of decline, having much shallower crowns, lower leaf areas, crowns that were flattened at the top, and "tufted" branches with needles only near the ends of the branches. Ten trees, five each in these two apparent vigor classes, were selected from a one-hectare area of a mature stand. Trees in the two groups were found to have similar height, diameter at breast height, age, and total volume. As expected from the selection criteria, high-vigor trees had much deeper crowns (P = 0.01) and higher leaf areas (P = 0.10). The volume of heartwood in the bole was higher in the low-vigor trees (P = 0.08), and the volume of the sapwood was higher in the high-vigor trees (P = 0.13). JF - Tree Physiology AU - Kaufmann, M R AU - Watkins, R K Y1 - 1990 PY - 1990 DA - 1990 SP - 239 EP - 246 VL - 7 IS - 1-4 KW - morphology KW - Ecology Abstracts KW - vigor KW - Pinus contorta latifolia KW - branching KW - leaf area KW - D 04635:Conifers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15867141?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tree+Physiology&rft.atitle=Characteristics+of+high-+and+low-vigor+lodgepole+pine+trees+in+old-growth+stands.&rft.au=Kaufmann%2C+M+R%3BWatkins%2C+R+K&rft.aulast=Kaufmann&rft.aufirst=M&rft.date=1990-01-01&rft.volume=7&rft.issue=1-4&rft.spage=239&rft.isbn=&rft.btitle=&rft.title=Tree+Physiology&rft.issn=0829318X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Comparison on receptors for 987P pili of enterotoxigenic Escherichia coli in the small intestines of neonatal and older pigs. AN - 15861311; 2444193 AB - Enterotoxigenic Escherichia coli isolates that express 987P pili colonize the small intestine and cause diarrhea in neonatal (3-week-old) pigs. However, 987P super(+) E. coli) isolates adhere in vitro to small-intestinal epithelial cells from pigs of both ages. In this study, we demonstrated that 3-week-old gnotobiotic pigs, like neonatal pigs, were colonized and developed diarrhea when challenged with 987P super(+) E. coli). We compared 987P receptors in small-intestinal epithelial cell brush borders and in intestinal washes (luminal contents) from <1-day-old, 3-week-old gnotobiotic, and 3- to 4-week-old weaned pigs. Samples were separated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and blotted onto nitrocellulose filters, and 987P binding was demonstrated by immunoassay using purified 987P pili. Receptors for 987P in the mucus of older pigs may inhibit 987P-mediated intestinal colonization by preventing the attachment of 987p super(+) enterotoxigenic E. coli) to intestinal epithelial receptors for 987P. JF - Infection and Immunity AU - Dean, E A AD - Physiopathol. Res. Unit, Natl. Anim. Dis. Cent., ARS, USDA, Ames, IA 50010, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 4030 EP - 4035 VL - 58 IS - 12 SN - 0019-9567, 0019-9567 KW - Escherichia coli KW - adherence KW - colonization KW - pigs KW - Microbiology Abstracts B: Bacteriology KW - gastrointestinal tract KW - gel electrophoresis KW - neonates KW - receptors KW - pili KW - J 02832:Antigenic properties and virulence UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15861311?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Infection+and+Immunity&rft.atitle=Comparison+on+receptors+for+987P+pili+of+enterotoxigenic+Escherichia+coli+in+the+small+intestines+of+neonatal+and+older+pigs.&rft.au=Dean%2C+E+A&rft.aulast=Dean&rft.aufirst=E&rft.date=1990-01-01&rft.volume=58&rft.issue=12&rft.spage=4030&rft.isbn=&rft.btitle=&rft.title=Infection+and+Immunity&rft.issn=00199567&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - pili; gastrointestinal tract; receptors; neonates; gel electrophoresis ER - TY - JOUR T1 - Meteorological determinants of spider ballooning: The roles of thermals vs. vertical windspeed gradient in becoming airborne. AN - 15860854; 2456442 AB - Spiders disperse by ballooning, a form of aeronautic behavior which they initiate by launching themselves into thermals. An attempt was made to define meteorological variables related to production and maintenance of thermals and use them as predictors of the number of aeronauts. Ballooning spiders were collected throughout a full growing season at an agricultural site and a native tall grass prairie 25 km distant, and numbers of ballooners were regressed against variables derived from meteorological data taken at locations near each site. The modified aeronautic index explained 23% of the variation in ballooner numbers at the prairie site, while the proportion of possible sunshine explained 82% of the variation at the agricultural site. However the signs of the partial regression coefficients were contrary to expected. This may be due to the masking of short term meteorological and behavioral events by the averaging of meteorological variables and aeronaut numbers over a week. Alternatively it may indicate that the source of updrafts used by aeronauts may not always be thermals, but may sometime be the vertical gradient in windspeed, a model which is consistent with the contrary signs of the regression coefficients. JF - Oecologia AU - Greenstone, M H AD - Biol. Control Insects Res. Lab., USDA, Agric. Res. Serv., P.O. Box 7629, Columbia, MO 65205, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 164 EP - 168 VL - 84 IS - 2 SN - 0029-8549, 0029-8549 KW - atmospheric conditions KW - effects on KW - thermals KW - ballooning KW - Entomology Abstracts; Ecology Abstracts; Animal Behavior Abstracts KW - wind KW - Araneae KW - dispersal KW - Z 05204:Dispersal & migration KW - D 04660:Arachnids KW - Y 25502:Invertebrates (excluding insects) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15860854?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Oecologia&rft.atitle=Meteorological+determinants+of+spider+ballooning%3A+The+roles+of+thermals+vs.+vertical+windspeed+gradient+in+becoming+airborne.&rft.au=Greenstone%2C+M+H&rft.aulast=Greenstone&rft.aufirst=M&rft.date=1990-01-01&rft.volume=84&rft.issue=2&rft.spage=164&rft.isbn=&rft.btitle=&rft.title=Oecologia&rft.issn=00298549&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Araneae; wind; dispersal ER - TY - JOUR T1 - The pyrenoid is the site of ribulose 1,5-bisphosphate carboxylase/oxygenase accumulation in the hornwort (Bryophyta: Anthocerotae) chloroplast. AN - 15860268; 2445120 AB - Chloroplasts of many species of hornworts (Anthocerotae) have a structure that resembles the pyrenoid of green algae but whether these two structures are homologous has not been determined. We utilized immunogold labelling on thin sections to determine the distribution of ribulose 1,5-bisphosphate carboxylase/oxygenase (RuBisCo), the major protein of algal pyrenoids, in sixteen hornwort species with and without pyrenoids. The data indicate that 1) the hornwort pyrenoid is homologous to algal pyrenoids in the presence of RuBisCo; 2) that at least some of the RuBisCo in the pyrenoid must represent an active form of the enzyme; and 3) that, in the absence of pyrenoids, the RuBisCo is distributed throughout the stroma, as in higher plants. JF - Protoplasma AU - Vaughn, K C AU - Campbell, E O AU - Hasegawa, J AU - Owen, HA AU - Renzaglia, K S AD - S. Weed Sci. Lab., USDA/ARS, P.O. Box 350, Stoneville, MS 38776, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 117 EP - 129 VL - 156 IS - 3 SN - 0033-183X, 0033-183X KW - Anthocerotae KW - accumulation KW - chloroplasts KW - pyrenoids KW - ribulose-bisphosphate carboxylase KW - sites KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15860268?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Protoplasma&rft.atitle=The+pyrenoid+is+the+site+of+ribulose+1%2C5-bisphosphate+carboxylase%2Foxygenase+accumulation+in+the+hornwort+%28Bryophyta%3A+Anthocerotae%29+chloroplast.&rft.au=Vaughn%2C+K+C%3BCampbell%2C+E+O%3BHasegawa%2C+J%3BOwen%2C+HA%3BRenzaglia%2C+K+S&rft.aulast=Vaughn&rft.aufirst=K&rft.date=1990-01-01&rft.volume=156&rft.issue=3&rft.spage=117&rft.isbn=&rft.btitle=&rft.title=Protoplasma&rft.issn=0033183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Congenital skeletal malformations and cleft palate induced in goats by ingestion of Lupinus, Conium and Nicotiana species. AN - 15853343; 2453242 AB - Three piperidine alkaloid containing plants, Conium maculatum (poison-hemlock), Nicotiana glauca (tree tobacco) and Lupinus formosus (lunara lupine), induced multiple congenital contractures (MCC) and palatoschisis in goat kids when their dams were gavaged with the plant during gestation days 30-60. The skeletal abnormalities included fixed extension or flexure of the carpal, tarsal, and fetlock joints, scoliosis, lordosis, torticollis and rib cage abnormalities. Clinical signs of toxicity included those reported in sheep, cattle and pigs--ataxia, incoordination, muscular weakness, prostration and death. One quinolizidine alkaloid containing plant, Lupinus caudatus (tailcup lupine), on the other hand, which is also known to cause MCC in cows, caused only slight signs of toxicity in pregnant goats and no teratogenic effects in their offspring. JF - Toxicon AU - Panter, KE AU - Keeler, R F AU - Bunch, T D AU - Callan, R J AD - USDA, ARS, Poisonous Plant Res. Lab., 1150 E. 1400 N., Logan, UT 84321, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 1377 EP - 1385 VL - 28 IS - 12 SN - 0041-0101, 0041-0101 KW - Conium maculatum KW - goats KW - Toxicology Abstracts KW - reviews KW - ingestion KW - congenital defects KW - Lupinus formosus KW - Nicotiana glauca KW - X 24172:Plants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15853343?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicon&rft.atitle=Congenital+skeletal+malformations+and+cleft+palate+induced+in+goats+by+ingestion+of+Lupinus%2C+Conium+and+Nicotiana+species.&rft.au=Panter%2C+KE%3BKeeler%2C+R+F%3BBunch%2C+T+D%3BCallan%2C+R+J&rft.aulast=Panter&rft.aufirst=KE&rft.date=1990-01-01&rft.volume=28&rft.issue=12&rft.spage=1377&rft.isbn=&rft.btitle=&rft.title=Toxicon&rft.issn=00410101&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Nicotiana glauca; Lupinus formosus; ingestion; congenital defects; reviews ER - TY - CONF T1 - Semiochemicals for use with parasitoids: Status and future. AN - 15853261; 2448001 AB - Allelochemicals are known to serve important roles at all steps in the host-searching sequence of parasitoids. We discuss the various roles of these allelochemics and the type of information needed to develop their use in pest control, which to date has been very limited. Rapid advancements are being made with respect to airborne chemicals and longer-range foraging behavior. Moreover, recent discoveries have shown that genetic diversity in parasitoid populations and phenotypic plasticity of individuals, together with their physiological state, often result in substantial variations in the response to chemical cues. Successful application of semiochemical-parasitoid systems will require management of these intrinsic parasitoid variables as well as management of the foraging environment. We illustrate emerging technology for such an application. JF - Journal of Chemical Ecology AU - Lewis, W J AU - Martin, WR Jr Y1 - 1990 PY - 1990 DA - 1990 SP - 3067 EP - 3090 VL - 16 IS - 11 KW - biological control KW - effects on KW - Chemoreception Abstracts; Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - semiochemicals KW - Braconidae KW - Lepidoptera KW - Noctuidae KW - Hymenoptera KW - Heliothis zea KW - parasitoids KW - Microplitis croceipes KW - host searching behavior KW - D 04659:Insects KW - Z 05207:Agricultural & general applied entomology KW - D 04710:Control KW - R 18052:Feeding KW - Y 25883:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15853261?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Semiochemicals+for+use+with+parasitoids%3A+Status+and+future.&rft.au=Lewis%2C+W+J%3BMartin%2C+WR+Jr&rft.aulast=Lewis&rft.aufirst=W&rft.date=1990-01-01&rft.volume=16&rft.issue=11&rft.spage=3067&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - CONF T1 - Using lake trout as a surrogate of ecosystem health for oligotrophic waters of the Great Lakes. AN - 15851582; 2452447 AB - The Great Lakes Water Quality Agreement (1978) between Canada and the United States provided for the accommodation of ecosystem objectives for the Great Lakes basin ecosystem. For the oligotrophic portions of the Great Lakes, the lake trout was selected as an exemplary organism for the detection of well-being or "health" of the system. The suitability of the lake trout (Salvelinus namaycush ) derived from the fact that it occupied a sensitive, integrative node at the top trophic level of the system. As a terminal predator, the lake trout acted as a major controlling factor over the remainder of the cold-water community. The lake trout, as the organism of choice, best satisfied a comprehensive set of qualifying criteria for indicator organisms. A secondary organism, Pontoporeia hoyi , was selected as complementary to the lake trout as it was indicative of oligotrophic system quality at the mud-water interface of the demersal zone. To provide a practical means for management application of the lake trout as an oligotrophic ecosystem surrogate, a Dichotomous Key was devised and subsequently upgraded to a menu-driven, computer-based expert system. JF - Journal of Great Lakes Research AU - Edwards, C J AU - Ryder, R A AU - Marshall, T R Y1 - 1990 PY - 1990 DA - 1990 SP - 591 EP - 608 VL - 16 IS - 4 KW - ecosystem analysis KW - health KW - Great Lakes KW - pollutant detection KW - Pollution Abstracts; Ecology Abstracts KW - pollution monitoring KW - North America, Great Lakes KW - ecosystems KW - Salvelinus namaycush KW - D 04801:Pollution monitoring and detection KW - P 2000:FRESHWATER POLLUTION KW - D 04668:Fish UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15851582?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Great+Lakes+Research&rft.atitle=Using+lake+trout+as+a+surrogate+of+ecosystem+health+for+oligotrophic+waters+of+the+Great+Lakes.&rft.au=Edwards%2C+C+J%3BRyder%2C+R+A%3BMarshall%2C+T+R&rft.aulast=Edwards&rft.aufirst=C&rft.date=1990-01-01&rft.volume=16&rft.issue=4&rft.spage=591&rft.isbn=&rft.btitle=&rft.title=Journal+of+Great+Lakes+Research&rft.issn=03801330&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Biotic indicators of host preference by the bagworm (Lepidoptera: Psychidae). AN - 15850970; 2452277 AB - Reports of the influence of host nutrition on the bagworm are limited and largely anecdotal. For example, Baerg counted eggs in bags from eight different hosts, and Jones & Parks cited hosts that were most frequently defoliated. Tietz reported a food plant list of 106 species that included clover (Trifolium sp.), corn (Zea mays L.), cotton (Gossypium sp.), and Iris. Sheppard, Neck, and Santamour transferred partially grown larvae from conifers to alternate deciduous and conifer species. However, comparative survival and growth of neonate cohort larvae on different hosts, or on host species other than the donor host, have not been studied. Edmunds & Alstad described the role of donor host adaptation by a monophytophagous species and how progeny success is so influenced. The absence of comparable data on the survival of a polyphagous species prompted our study. Here we report mortality, bag length, and larval development of the bagworm on selected conifer and deciduous hosts. JF - Journal of Economic Entomology AU - Neal, JW Jr AU - Santamour, FS Jr AD - Florist and Nursery Crops Lab., Plant Sci. Inst., Beltsville Agric. Res. Cent., USDA-ARS, Beltsville, MD 20705, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 2393 EP - 2397 VL - 83 IS - 6 SN - 0022-0493, 0022-0493 KW - host preferences KW - Thyridopteryx ephemeraeformis KW - Ecology Abstracts; Entomology Abstracts KW - host plants KW - Psychidae KW - Lepidoptera KW - Z 05203:Relations to plants KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15850970?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Biotic+indicators+of+host+preference+by+the+bagworm+%28Lepidoptera%3A+Psychidae%29.&rft.au=Neal%2C+JW+Jr%3BSantamour%2C+FS+Jr&rft.aulast=Neal&rft.aufirst=JW&rft.date=1990-01-01&rft.volume=83&rft.issue=6&rft.spage=2393&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Psychidae; Lepidoptera; host plants ER - TY - JOUR T1 - Effects of soil phosphorus and Glomus intraradices on growth, nonstructural carbohydrates, and photosynthetic activity of Citrus aurantium . AN - 15847707; 2451288 AB - Sour orange (Citrus aurantium L.) growth in low-P (9-12 ppm) and high-P (420 ppm) soil inoculated with or without Glomus intraradices (G.i .), were evaluated for biomass, carbohydrates, ribulose bisphosphate carboxylase (RuBPCase), phosphoenolpyruvate carboxylase (PEPCase) activity, leaf super(14)CO sub(2) incorporation, and other physiological parameters. Growth of plants in the low-P, noninoculated soil was lowest, with total dry biomass reduced up to half of the low-P, inoculum treatment. Total nonstructural carbohydrates were 40% lower in leaves of plants in the low-P, noninoculated soil, compared with the other treatments. Inoculation of the low-P soil enhanced leaf super(14)CO sub(2) incorporation by 67%, total chlorophyll content by 28%, and RuBPCase activity by 42%, compared with low-P, noninoculated treatment. Improved P-use efficiency by G.i). in low-P soil was comparable to high-P nutrition in improving leaf super(14)CO sub(2) incorporation and concentration of major leaf photosynthetic products that include starch and sucrose. JF - Plant and Soil AU - Nemec, S AU - Vu, JCV AD - USDA, ARS, 2120 Camden Rd., Orlando, FL 32803, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 257 EP - 263 VL - 128 IS - 2 SN - 0032-079X, 0032-079X KW - Glomus intraradices KW - inoculation KW - photosynthesis KW - activity KW - carbohydrates KW - levels KW - phosphoenolpyruvate carboxylase KW - ribulose-bisphosphate carboxylase KW - effects on KW - phosphorus KW - Citrus aurantium KW - growth KW - nutrient deficiency KW - vesicular-arbuscular mycorrhizas KW - Ecology Abstracts; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - D 04640:Other angiosperms KW - A 01047:General KW - K 03096:Mycorrhiza KW - W 30514:Soil organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15847707?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Plant+and+Soil&rft.atitle=Effects+of+soil+phosphorus+and+Glomus+intraradices+on+growth%2C+nonstructural+carbohydrates%2C+and+photosynthetic+activity+of+Citrus+aurantium+.&rft.au=Nemec%2C+S%3BVu%2C+JCV&rft.aulast=Nemec&rft.aufirst=S&rft.date=1990-01-01&rft.volume=128&rft.issue=2&rft.spage=257&rft.isbn=&rft.btitle=&rft.title=Plant+and+Soil&rft.issn=0032079X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Citrus aurantium; vesicular-arbuscular mycorrhizas; growth; nutrient deficiency ER - TY - JOUR T1 - Effects of chilling and temperature preconditioning on the activity of polyamine biosynthetic enzymes in zucchini squash. AN - 15846890; 2451551 AB - Polyamine biosynthesis during chilling stress in zucchini squash (Cucurbita pepo L., cv. "Ambassador") was measured by determining the activities of SAMDC, ADC, and ODC. Stress induced increased in Put were correlated with increase ODC activity. Decreases in the levels of Spd and Spn during chilling may be related to decreased SAMDC activity. Temperature preconditioning adapts squash to subsequent chilling stress and results in increased Spn and Spd levels in response to chilling. The concomitant increase in these two polyamines is correlated with elevated SAMDC activity. JF - Journal of Plant Physiology AU - Kramer, G F AU - Wang, CY AD - Hortic. Crops Qual. Lab., ARS, USDA, Beltsville, MD 20705, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 115 EP - 119 VL - 136 IS - 1 SN - 0176-1617, 0176-1617 KW - Cucurbita pepo KW - adenosylmethionine decarboxylase KW - biosynthesis KW - chilling KW - injury KW - ornithine decarboxylase KW - phosphoenolpyruvate carboxykinase (ATP) KW - polyamines KW - temperature KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15846890?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Plant+Physiology&rft.atitle=Effects+of+chilling+and+temperature+preconditioning+on+the+activity+of+polyamine+biosynthetic+enzymes+in+zucchini+squash.&rft.au=Kramer%2C+G+F%3BWang%2C+CY&rft.aulast=Kramer&rft.aufirst=G&rft.date=1990-01-01&rft.volume=136&rft.issue=1&rft.spage=115&rft.isbn=&rft.btitle=&rft.title=Journal+of+Plant+Physiology&rft.issn=01761617&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Immigration, sex ratio, and local movement of the potato leafhopper (Homoptera: Cicadellidae) in a Pennsylvania alfalfa field. AN - 15844951; 2437455 AB - The distribution and immigration trends of Empoasca fabae (Harris) in a managed alfalfa, Medicago sativa L., field were studied over a 3-yr period. In the second alfalfa growth cycle, E. fabae immigration into the field usually began after the alfalfa reached a height of 5 cm. The rate of immigration into the field was constant until halfway into the crop growth cycle, after which it usually decreased. Sex ratios of adult E. fabae were 80% female in the second growth cycle and 50% female in the third growth cycle. In two of the three years, the sex ratios were 44% female at the end of the third growth cycle. This may have been due to a greater tendency for female than for male E. fabae to leave the field at this time of the year. During the second and third growth cycles of 1980, E. fabae density was about 76% higher in exterior plots than in interior plots. This difference in density did not change appreciably during the second or third growth cycles. JF - Journal of Economic Entomology AU - Flinn, P W AU - Hower, A A AU - Taylor, RAJ AD - USDA-ARS, U.S. Grain Mark. Res. Lab., 1515 College Ave., Manhattan, KS 66502, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 1858 EP - 1862 VL - 83 IS - 5 SN - 0022-0493, 0022-0493 KW - Empoasca fabae KW - Ecology Abstracts; Entomology Abstracts KW - Cicadellidae KW - sex ratio KW - dispersal KW - immigration KW - USA, Pennsylvania KW - Homoptera KW - Medicago sativa KW - Z 05204:Dispersal & migration KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15844951?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Immigration%2C+sex+ratio%2C+and+local+movement+of+the+potato+leafhopper+%28Homoptera%3A+Cicadellidae%29+in+a+Pennsylvania+alfalfa+field.&rft.au=Flinn%2C+P+W%3BHower%2C+A+A%3BTaylor%2C+RAJ&rft.aulast=Flinn&rft.aufirst=P&rft.date=1990-01-01&rft.volume=83&rft.issue=5&rft.spage=1858&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Medicago sativa; Homoptera; Cicadellidae; USA, Pennsylvania; sex ratio; immigration; dispersal ER - TY - JOUR T1 - Effects of major histocompatibility genes and antigen delivery on induction of protective mucosal immunity to E. acervulina following immunization with a recombinant merozoite antigen. AN - 15843350; 2436842 AB - Intramuscular immunization with the recombinant p250 surface antigen of Eimeria acervulina merozoite (rEAMZp250) or oral inoculation with live recombinant Escherichia coli expressing the rEAMZp250 protein resulted in antigen-specific T-cell and humoral responses and conferred a significant reduction in mucosal parasitism compared to immunization with the negative control antigen preparation. Among the major histocompatibility complex (MHC) (B)-congenic chickens receiving intramuscular immunization, strain .6-2 (B super(2)B super(2)) showed significant protection to live E. acervulina) challenge compared to the other strains examined. The results suggest that the B haplotypes of the host and the mode of antigen presentation influence the outcome of protection following an immunization of chickens with recombinant coccidial antigen. JF - Immunology AU - Lillehoj, H S AU - Jenkins, M C AU - Bacon, L D AD - Protozoan Dis. Lab., Livest. and Poult. Sci. Inst., USDA, BARC-E, Build. 1040, Beltsville, MD 20705, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 127 EP - 132 VL - 71 IS - 1 SN - 0019-2805, 0019-2805 KW - Eimeria acervulina KW - antigens KW - immunity KW - Escherichia coli KW - use KW - chickens KW - histocompatibility antigen B KW - merozoites KW - mucosa KW - vaccination KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology; Immunology Abstracts KW - K 03086:Immunology & vaccination KW - W 30409:Vaccines KW - F 06807:Active immunization UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15843350?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Immunology&rft.atitle=Effects+of+major+histocompatibility+genes+and+antigen+delivery+on+induction+of+protective+mucosal+immunity+to+E.+acervulina+following+immunization+with+a+recombinant+merozoite+antigen.&rft.au=Lillehoj%2C+H+S%3BJenkins%2C+M+C%3BBacon%2C+L+D&rft.aulast=Lillehoj&rft.aufirst=H&rft.date=1990-01-01&rft.volume=71&rft.issue=1&rft.spage=127&rft.isbn=&rft.btitle=&rft.title=Immunology&rft.issn=00192805&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - merozoites; vaccination; mucosa ER - TY - JOUR T1 - Interaction of maize weevil (Coleoptera: Curculionidae) and parasitoid Anisopteromalus calandrae (Hymenoptera: Pteromalidae) in a small bulk of stored corn. AN - 15842517; 2432855 AB - Monthly samples of a stored-corn ecosystem in southeastern Georgia were used to examine interaction between the maize weevil, Sitophilus zeamais Motschulsky, and its parasitoid, Anisopteromalus calandrae (Howard). Counts of adults were made when the samples were taken. Counts were made again after the samples had been held at 30 degree C and 60% RH for 1 wk and for 3 wk. Host and parasitoid develop within grain kernels; at any time, their numbers can be divided into interstitial and intrakernel populations. Interstitial populations, estimated by the first count, consisted of adults that were in the interstices of the grain mass when a sample was taken. In these populations, numerical response of the parasitoid to host density was clear and indicated a degree of natural control. The intrakernel populations, estimated by counts 2 and 3 combined, included immature stages and adults that had not yet emerged from grain kernels at the time of sampling. JF - Journal of Economic Entomology AU - Arbogast, R T AU - Mullen, MA AD - Stored-Prod. Insects Res. and Dev. Lab., USDA-ARS, Savannah, GA 31403, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 2462 EP - 2468 VL - 83 IS - 6 SN - 0022-0493, 0022-0493 KW - Coleoptera KW - Anisopteromalus calandrae KW - Curculionidae KW - Hymenoptera KW - Pteromalidae KW - Sitophilus zeamais KW - Zea mays KW - biological control KW - host-parasite interactions KW - stored products KW - Biotechnology and Bioengineering Abstracts; Ecology Abstracts; Entomology Abstracts KW - D 04659:Insects KW - Z 05201:Parasitism: entomophagous KW - W 30513:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15842517?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Interaction+of+maize+weevil+%28Coleoptera%3A+Curculionidae%29+and+parasitoid+Anisopteromalus+calandrae+%28Hymenoptera%3A+Pteromalidae%29+in+a+small+bulk+of+stored+corn.&rft.au=Arbogast%2C+R+T%3BMullen%2C+MA&rft.aulast=Arbogast&rft.aufirst=R&rft.date=1990-01-01&rft.volume=83&rft.issue=6&rft.spage=2462&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Curculionidae; Anisopteromalus calandrae; Hymenoptera; Pteromalidae; Zea mays; Sitophilus zeamais; stored products; host-parasite interactions; biological control ER - TY - JOUR T1 - Control of aquatic plants in static and flowing water by yearling triploid grass carp. AN - 15840603; 2438828 AB - One year old triploid grass carp (Ctenopharyngodon idella ), ranging in weight between 90 and 224 g, were placed in canals having static or flowing water to determine their feeding preferences and ability to control curlyleaf pondweed (Potamogeton crispus ), elodea (Elodea canadensis ), and Eurasian watermilfoil (Myriophylum spicatum ) during winter, summer, and fall temperature regimes. JF - Journal of Aquatic Plant Management AU - Pine, R T AU - Anderson, LWJ AU - Hung, SSO AD - USDA-ARS Aquatic Weed Lab., Univ. California, Davis, CA 95616, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 36 EP - 40 VL - 28 IS - 1 SN - 0146-6623, 0146-6623 KW - biological control KW - plant control KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts; ASFA Aquaculture Abstracts KW - Ctenopharyngodon idella KW - polyploids KW - aquatic plants KW - food preferences KW - Freshwater KW - D 04700:Management KW - Q1 08221:General KW - Q3 08582:Fish culture KW - Q1 08485:Species interactions: pests and control KW - Q5 08522:Protective measures and control KW - Q1 08582:Fish culture UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15840603?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Aquatic+Plant+Management&rft.atitle=Control+of+aquatic+plants+in+static+and+flowing+water+by+yearling+triploid+grass+carp.&rft.au=Pine%2C+R+T%3BAnderson%2C+LWJ%3BHung%2C+SSO&rft.aulast=Pine&rft.aufirst=R&rft.date=1990-01-01&rft.volume=28&rft.issue=1&rft.spage=36&rft.isbn=&rft.btitle=&rft.title=Journal+of+Aquatic+Plant+Management&rft.issn=01466623&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - polyploids; plant control; aquatic plants; food preferences; Ctenopharyngodon idella; Freshwater ER - TY - JOUR T1 - Design of an attract-and-kill device for the boll weevil (Coleoptera: Curculionidae). AN - 15838714; 2439086 AB - Polyvinyl chloride (PVC) was used to formulate a mixture of grandlure, feeding stimulants, and a toxicant as a toxic bait for the cotton boll weevil, Anthonomus grandis (Boheman). Field tests with the PVC formulation revealed that certain aspects of boll weevil orientation dictated placement of the bait device on vertically oriented stakes of about 12-24 mm diameter. A stake coating was prepared which contained natural shellac as a binder, cyfluthrin, a green pigment, and crude cottonseed oil. This coating was applied to wooden stakes, with aluminum pans underneath to facilitate counting of dead boll weevils. Bait devices prepared in this manner appeared to be very effective in killing boll weevils. Their advantage over live traps is that they are less expensive and require no service once they are deployed. They have the potential for becoming an important control method for the boll weevil, particularly in the early and late season periods. JF - Journal of Entomological Science AU - McKibben, G H AU - Smith, J W AU - McGovern, W L AD - Boll Weevil Res. Unit, USDA-ARS, Mississippi State, MS 39762-5367, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 581 EP - 586 VL - 25 IS - 4 SN - 0749-8004, 0749-8004 KW - bait KW - Anthonomus grandis KW - Coleoptera KW - Curculionidae KW - pheromone traps KW - Biotechnology and Bioengineering Abstracts; Chemoreception Abstracts; Entomology Abstracts KW - W 30513:Pest control KW - Z 05207:Agricultural & general applied entomology KW - R 18053:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15838714?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Entomological+Science&rft.atitle=Design+of+an+attract-and-kill+device+for+the+boll+weevil+%28Coleoptera%3A+Curculionidae%29.&rft.au=McKibben%2C+G+H%3BSmith%2C+J+W%3BMcGovern%2C+W+L&rft.aulast=McKibben&rft.aufirst=G&rft.date=1990-01-01&rft.volume=25&rft.issue=4&rft.spage=581&rft.isbn=&rft.btitle=&rft.title=Journal+of+Entomological+Science&rft.issn=07498004&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Anthonomus grandis; Coleoptera; Curculionidae; pheromone traps ER - TY - JOUR T1 - Irradiated boll weevils (Coleoptera: Curculionidae): Isolated field studies of competitiveness. AN - 15833443; 2432829 AB - Field competitiveness of boll weevils, Anthonomus grandis grandis Boheman, subjected to seven dosages of gamma-irradiation between 2 and 40 krad was evaluated over two seasons in isolated small cotton plots. Before irradiation, weevils had been fed diet treated with an ecdysteroid, 3 beta ,5 beta ,14 alpha -trihydroxy-5 beta -cholest-7-en-6-one to prevent egg production by females. Longevity of the group receiving 2 krad was not significantly different from the untreated control. There was no significant difference in the longevity of weevils receiving 4, 6, 8, 10, 20, or 40 krad, but these weevils did not live as long as those receiving the 0 and 2 krad treatments. There was a significant trend toward higher competitiveness around the 10-krad dosage. Up to about 10 krad, any lowering of vigor caused by increasing dosage was apparently overcome by the resulting increase in sterility. JF - Journal of Economic Entomology AU - Winstead, R W AU - Vilavaso, E J AU - McGovern, W L AD - Boll Weevil Res. Unit, USDA-ARS, Mississippi State, MS 39762, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 1853 EP - 1857 VL - 83 IS - 5 SN - 0022-0493, 0022-0493 KW - Coleoptera KW - effects on KW - Anthonomus grandis grandis KW - Curculionidae KW - biological control KW - competitiveness KW - gamma radiation KW - measuring techniques KW - Biotechnology and Bioengineering Abstracts; Entomology Abstracts KW - W 30513:Pest control KW - Z 05207:Agricultural & general applied entomology KW - Z 05156:Techniques UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15833443?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Irradiated+boll+weevils+%28Coleoptera%3A+Curculionidae%29%3A+Isolated+field+studies+of+competitiveness.&rft.au=Winstead%2C+R+W%3BVilavaso%2C+E+J%3BMcGovern%2C+W+L&rft.aulast=Winstead&rft.aufirst=R&rft.date=1990-01-01&rft.volume=83&rft.issue=5&rft.spage=1853&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Curculionidae; Anthonomus grandis grandis; biological control; gamma radiation; competitiveness; measuring techniques ER - TY - JOUR T1 - Carbohydrate reserves, radial growth, and mechanisms of resistance of oak trees to phloem-boring insects. AN - 15832984; 2425608 AB - The twolined chestnut borer, Agrilus bilineatus (Weber) (Coleoptera: Buprestidae), attacks oaks (Quercus spp.) that have been weakened by prior environmental or biotic stress. Our earlier work showed that trees with relatively low winter starch reserves are more likely to be attacked by A. bilineatus the following summer. We hypothesized that such trees may have less energy available for defense (Callus formation and allelochemical synthesis) in tissues wounded by borer larvae. However, wounding experiments showed little or no relationship between winter or summer carbohydrate reserves, callus formation, radial growth, or concentrations of tannins and phenolics in wounded or nonwounded phloem tissues. Trees with relatively low winter carbohydrate reserves were again found to be attractive to adult A. bilineatus , although not all low starch trees were attacked or successfully colonized by borers. There was a trend for carpenterworm larvae, Prinoxystus robiniae (Lepidoptera: Cossidae), a generalist bark and wood borer, to be more successful in establishing galleries on low starch trees. JF - Oecologia AU - Dunn, J P AU - Potter, DA AU - Kimmerer, T W AD - USDA Forest Serv., Forest Insect Res., 2500 Shreveport Highw., Pineville, LA 71360, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 458 EP - 468 VL - 83 IS - 4 SN - 0029-8549, 0029-8549 KW - nutrient status KW - resistance KW - Agrilus bilineatus KW - Entomology Abstracts; Ecology Abstracts KW - Coleoptera KW - Buprestidae KW - Quercus KW - growth KW - D 04640:Other angiosperms KW - Z 05203:Relations to plants KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15832984?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Oecologia&rft.atitle=Carbohydrate+reserves%2C+radial+growth%2C+and+mechanisms+of+resistance+of+oak+trees+to+phloem-boring+insects.&rft.au=Dunn%2C+J+P%3BPotter%2C+DA%3BKimmerer%2C+T+W&rft.aulast=Dunn&rft.aufirst=J&rft.date=1990-01-01&rft.volume=83&rft.issue=4&rft.spage=458&rft.isbn=&rft.btitle=&rft.title=Oecologia&rft.issn=00298549&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Quercus; Coleoptera; Buprestidae; growth ER - TY - JOUR T1 - Nutrient export in stormflow following forest harvesting and site-preparation in East Texas. AN - 15832694; 2441160 AB - In December 1979 nine small (2.57 to 2.79 ha) watersheds in East Texas were instrumented to determine the effects on stormflow water quality of (1) clearcutting, shearing, windrowing and burning; (2) clearcutting, roller chopping, and burning; and (3) undisturbed control. Nutrient losses and concentrations, pH, electrical conductivity, and turbidity were not significantly different for all pre-treated watersheds. Although nutrient losses from all treatments were small, shearing and windrowing had the greatest impact on nutrient export. Roller chopping as applied in this study had a minimal impact on stormflow nutrient losses and should not degrade water quality. JF - Journal of Environmental Quality AU - Blackburn, W H AU - Wood, J C AD - USDA-ARS, Northwest Watershed Res. Cent., 270 S. Orchard, Boise, ID 83705, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 402 EP - 408 VL - 19 IS - 3 SN - 0047-2425, 0047-2425 KW - Texas, Cherokee Cty. KW - USA, Texas Cherokee Cty. KW - forest industry KW - ground water KW - groundwater KW - nutrients KW - water quality control KW - water supplies KW - water supply KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - agricultural pollution KW - water quality KW - agriculture KW - Freshwater KW - nutrient cycles KW - water analysis KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15832694?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Nutrient+export+in+stormflow+following+forest+harvesting+and+site-preparation+in+East+Texas.&rft.au=Blackburn%2C+W+H%3BWood%2C+J+C&rft.aulast=Blackburn&rft.aufirst=W&rft.date=1990-01-01&rft.volume=19&rft.issue=3&rft.spage=402&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - agricultural pollution; water quality; water supply; forest industry; agriculture; water analysis; nutrient cycles; ground water; groundwater; nutrients; water supplies; Freshwater ER - TY - JOUR T1 - Effect of soil temperature on sap flow, shoot gas exchange and water potential of Picea engelmannii (Parry) during snowmelt. AN - 15831536; 2431432 AB - The effect of cold soils on stem sap flow, shoot gas exchange and water potential of Picea engelmannii (Parry) was investigated during the snowmelt period in the Medicine Bow Mountains, Wyoming, USA. Shoot net photosynthetic rates were higher in young trees (1.5-1.8 m in height) growing in cold soils (< 3.5 degree C) associated with snowpack, than trees in warm soils until about 1500 h. Higher shoot photosynthetic rates of trees in cold soils continued after snow was removed and could not be completely explained by higher visible irradiance over highly reflective snow. Following soil warming higher photosynthetic rates were evident in these trees for five days. High nutrient availability associated with snowmelt may improve shoot nutrient status leading to higher gas-exchange rate during snowmelt. Shoot conductance to water vapor was higher in trees in cold soil until midday, when declining shoot conductance led to lower intercellular CO sub(2) concentrations. JF - Oecologia AU - Day, T A AU - DeLucia, E H AU - Smith, W K AD - USDA-ARS, Appalachian Soil and Water Conserv. Res. Lab., Beckley, WV 25802, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 474 EP - 481 VL - 84 IS - 4 SN - 0029-8549, 0029-8549 KW - soil temperature KW - Ecology Abstracts KW - sap KW - Picea engelmannii KW - water potential KW - USA, Wyoming, Medicine Bow Mts. KW - gas exchange KW - D 04635:Conifers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15831536?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Oecologia&rft.atitle=Effect+of+soil+temperature+on+sap+flow%2C+shoot+gas+exchange+and+water+potential+of+Picea+engelmannii+%28Parry%29+during+snowmelt.&rft.au=Day%2C+T+A%3BDeLucia%2C+E+H%3BSmith%2C+W+K&rft.aulast=Day&rft.aufirst=T&rft.date=1990-01-01&rft.volume=84&rft.issue=4&rft.spage=474&rft.isbn=&rft.btitle=&rft.title=Oecologia&rft.issn=00298549&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Picea engelmannii; USA, Wyoming, Medicine Bow Mts.; gas exchange; water potential; sap ER - TY - JOUR T1 - Sperm transfer in normal and gamma-irradiated, laboratory-reared Mediterranean fruit flies (Diptera: Tephritidae). AN - 15828304; 2433810 AB - Normal, unirradiated females of Mediterranean fruit fly, Ceratitis capitata (Wiedemann), were mated with normal or gamma-irradiated males. In natural uninterrupted matings, mean durations in copula for normal males and irradiated males were about 120 and 108 min, respectively. Ten to 38% of the females were not inseminated. Eighty to 99% of the sperm were found in spermathecae after 2 h of mating. Few or no sperm were found in the bursa copulatrix, oviducts, or accessory gland. Mean numbers of sperm per female were about 1,780 and 990 for normal and irradiated males, respectively. A power equation was used to relate duration of copula to number of sperm in the spermathecae. Results are discussed with respect to the sterile insect technique and development of quality control parameters. JF - Journal of Economic Entomology AU - Seo, ST AU - Vargas, R I AU - Gilmore, JE AU - Kurashima, R S AU - Fujimoto AD - Trop. Fruit and Veg. Res. Lab., USDA-ARS, Honolulu, HI 96804, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 1949 EP - 1953 VL - 83 IS - 5 SN - 0022-0493, 0022-0493 KW - spermatozoa KW - transfer KW - effects on KW - sterile insect technique KW - Ceratitis capitata KW - Diptera KW - Tephritidae KW - biological control KW - gamma radiation KW - mating behavior KW - Biotechnology and Bioengineering Abstracts; Animal Behavior Abstracts; Entomology Abstracts KW - Z 05190:Environmental effects KW - W 30513:Pest control KW - Y 25883:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15828304?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Sperm+transfer+in+normal+and+gamma-irradiated%2C+laboratory-reared+Mediterranean+fruit+flies+%28Diptera%3A+Tephritidae%29.&rft.au=Seo%2C+ST%3BVargas%2C+R+I%3BGilmore%2C+JE%3BKurashima%2C+R+S%3BFujimoto&rft.aulast=Seo&rft.aufirst=ST&rft.date=1990-01-01&rft.volume=83&rft.issue=5&rft.spage=1949&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Tephritidae; Diptera; Ceratitis capitata; gamma radiation; mating behavior; biological control ER - TY - JOUR T1 - Reducing microbial populations on beef tissues: Concentration and temperature of an acid mixture. AN - 15827826; 2429763 AB - A mixture of 2% acetic, 1% lactic, 0.25% citric and 0.1% ascorbic acid was applied to beef core samples of muscle inoculated with bacteria. Experimental variables were concentration and temperature of mixed acids and type of microorganism. Overall, an increase in either mixed acids concentration (0 to 3%) or temperature (20 to 70 degree C) resulted in reductions in counts of about one log sub(10) for aerobic bacteria and S. typhimurium , less than one log sub(10) for Enterobacteriaceae , and about one-half log sub(10) for E. coli . Overall, this mixture of acids performed about the same as acetic acid or lactic acid under the same conditions. JF - Journal of Food Science AU - Anderson, ME AU - Marshall, R T AD - Anim. Physiol. and Nutr. Res., USDA, ARS, 254 Agric. Eng., Univ. Missouri, Columbia, MO 65211, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 903 EP - 905 VL - 55 IS - 4 SN - 0022-1147, 0022-1147 KW - Salmonella typhimurium KW - culture KW - concentration KW - temperature KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - spoilage KW - meat KW - Escherichia coli KW - A 01017:Human foods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15827826?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Food+Science&rft.atitle=Reducing+microbial+populations+on+beef+tissues%3A+Concentration+and+temperature+of+an+acid+mixture.&rft.au=Anderson%2C+ME%3BMarshall%2C+R+T&rft.aulast=Anderson&rft.aufirst=ME&rft.date=1990-01-01&rft.volume=55&rft.issue=4&rft.spage=903&rft.isbn=&rft.btitle=&rft.title=Journal+of+Food+Science&rft.issn=00221147&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Escherichia coli; meat; spoilage ER - TY - JOUR T1 - Variations in ergosterol content and ornithine decarboxylase activity of ectomycorrhizal root-soil systems. AN - 15827004; 2423843 AB - Influences of soil P fertilization on temporal changes in ergosterol content and ornithine decarboxylase (E.C. 4.1.1.17, ODC) activity were monitored in rhizosphere soil, non-rhizosphere soil and Pinus contorta roots ectomycorrhizal with Hebeloma crustuliniforme grown in a loamy sand. With addition of mycorrhizal inoculum to loamy sand, ODC activity/mg root increased between 10% and 2 fold within 21 weeks of planting. Inoculation also decreased root mass per seedling. Inoculation increased mycelia mass per root mass by up to 2 fold but not differences were observed for total seedling mass until 35 weeks. Intramatrical mycelia were detrimental to early plant growth, but inoculated seedlings had 1.7 times more root mass and 1.3 times more shoot mass at 35 weeks. Rhizosphere soil contained up to 5 times more mycelia and up to 6 times greater ODC activity than non-rhizosphere soil. JF - Plant and Soil AU - Johnson, B N AU - McGill, W B AD - USDA-ARS, 215 Johnson Hall, Washington State Univ., Pullman, WA 99164-6421, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 71 EP - 79 VL - 127 IS - 1 SN - 0032-079X, 0032-079X KW - ectomycorrhizas KW - content KW - activity KW - phosphorus KW - inoculation KW - growth KW - stimulation KW - roots KW - ergosterol KW - ornithine decarboxylase KW - Ecology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Pinus contorta KW - fertilization KW - Hebeloma crustuliniforme KW - D 04623:Fungi KW - A 01044:General KW - K 03096:Mycorrhiza UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15827004?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Plant+and+Soil&rft.atitle=Variations+in+ergosterol+content+and+ornithine+decarboxylase+activity+of+ectomycorrhizal+root-soil+systems.&rft.au=Johnson%2C+B+N%3BMcGill%2C+W+B&rft.aulast=Johnson&rft.aufirst=B&rft.date=1990-01-01&rft.volume=127&rft.issue=1&rft.spage=71&rft.isbn=&rft.btitle=&rft.title=Plant+and+Soil&rft.issn=0032079X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Hebeloma crustuliniforme; Pinus contorta; fertilization ER - TY - JOUR T1 - Dependence of gypsy moth (Lepidoptera: Lymantriidae) capture on pheromone release rate from laminate and other dispensers. AN - 15822474; 2433987 AB - Emission rates from cotton wicks baited with 1-400 mu g of (+)-disparlure ranged from 7 to 2,000 ng/h at 35 degree C in a laboratory oven. A 100- mu g dose, which is a reference in field tests, produced a rate of 470 ng/h. Release rates, residual lure contents, and captures of male gypsy moths, Lymantria dispar (L.), were correlated with duration of greenhouse aging. High male captures were obtained in tests with controlled-release, plastic laminate dispensers when the pheromone release rate was at least 30 ng/h and the residual content was at least 100 mu g. These thresholds were provided by laminates aged in a greenhouse (mean low, 24.4-27.5 degree C; mean high, 36.7 39.1 degree C) for as long as 8-11 wk. Release rates from the laminate increased 3.5-fold for each 10 degree C increase in temperature. Several commercial dispensers with (+)-disparlure were evaluated, but the laminate design generally performed better than others with respect to the number of males captured. JF - Journal of Economic Entomology AU - Leonhardt, BA AU - Mastro, V C AU - Paszek, E C AU - Schwalbe, C P AU - Devilbiss, ED AD - Insect. Chem. Ecol. Lab., USDA-ARS, Beltsville, MD 20705, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 1977 EP - 1981 VL - 83 IS - 5 SN - 0022-0493, 0022-0493 KW - Lymantria dispar KW - comparison KW - dispensers KW - Lepidoptera KW - Lymantriidae KW - pheromone traps KW - sex pheromone KW - Chemoreception Abstracts; Biotechnology and Bioengineering Abstracts; Entomology Abstracts KW - W 30513:Pest control KW - Z 05207:Agricultural & general applied entomology KW - R 18053:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15822474?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Dependence+of+gypsy+moth+%28Lepidoptera%3A+Lymantriidae%29+capture+on+pheromone+release+rate+from+laminate+and+other+dispensers.&rft.au=Leonhardt%2C+BA%3BMastro%2C+V+C%3BPaszek%2C+E+C%3BSchwalbe%2C+C+P%3BDevilbiss%2C+ED&rft.aulast=Leonhardt&rft.aufirst=BA&rft.date=1990-01-01&rft.volume=83&rft.issue=5&rft.spage=1977&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lymantriidae; Lepidoptera; pheromone traps; sex pheromone ER - TY - JOUR T1 - Nipple attachment behavior in rat pups exposed to alcohol in utero. AN - 15818478; 2421227 AB - Two experiments were conducted to further characterize impaired nipple attachment behavior in 5-day-old rat pups exposed to alcohol prenatally. In Experiment 1, animals were given two different nipple attachment tests. In the pups-on-mother test, which required animals to first locate a nipple, alcohol-exposed pups displayed longer attachment latencies than controls. Furthermore, more than 50% of these pups failed to attach during testing. In the pups-on-nipple test, in which no search for the nipple was necessary, prenatal alcohol did not reliably affect attachment. To assess the extent to which alcohol-exposed pups utilize an olfactory cue for attachment, in Experiment 2, nipple attachment was observed using the pups-on-nipple test before and after olfactory cue removal. Similar to controls, the alcohol-exposed animals only attached to the normally scented nipples. Therefore, prenatal alcohol exposure impaired nipple search performance in young rats, but not attachment once at the nipple. Moreover, these pups performed like controls in response to olfactory cue manipulation. Possible mechanisms for the poor search behavior are discussed. JF - Neurotoxicology and Teratology AU - Rockwood, G A AU - Riley, E P AD - Carbohydr. Nutr. Lab., USDA, ARS, BHNRC, Build. 307, Rm. 312-E, Beltsville, MD 20705, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 383 EP - 389 VL - 12 IS - 4 SN - 0892-0362, 0892-0362 KW - ethanol KW - behaviour KW - rats KW - CSA Neurosciences Abstracts; Animal Behavior Abstracts; Chemoreception Abstracts; Toxicology Abstracts KW - breast feeding KW - olfactory stimuli KW - prenatal experience KW - suckling behavior KW - R 18059:Feeding KW - X 24180:Social poisons & drug abuse KW - N3 11139:Toxicological and psychoactive drug correlates KW - Y 25817:Mammals (excluding primates) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15818478?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Neurotoxicology+and+Teratology&rft.atitle=Nipple+attachment+behavior+in+rat+pups+exposed+to+alcohol+in+utero.&rft.au=Rockwood%2C+G+A%3BRiley%2C+E+P&rft.aulast=Rockwood&rft.aufirst=G&rft.date=1990-01-01&rft.volume=12&rft.issue=4&rft.spage=383&rft.isbn=&rft.btitle=&rft.title=Neurotoxicology+and+Teratology&rft.issn=08920362&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - prenatal experience; breast feeding; olfactory stimuli; suckling behavior ER - TY - JOUR T1 - Effect of alkali treatment on physiological activity of cotton condensed tannin. AN - 15816524; 2427893 AB - Cotton dusts contain condensed tannins and endotoxins, which are suspected of contributing to the development of acute and chronic biological responses in some cotton textile mill workers. Condensed tannin extracted from cotton dust was coated on to cellulose powder, and the tannin coated powder was treated with an alkali solvent system previously developed to reduce the endotoxin content and pulmonary toxicity of cotton dust. Physiological activities of the dusts and powders were compared by assaying the production of the arachidonic acid metabolites prostaglandin F sub(2 alpha ) (PGF sub(2 alpha )), thromboxane A sub(2) (TxA sub(2)) (the precursor to thromboxane B sub(2) (TxB sub(2))), leukotriene C sub(4) (LTC sub(4) and prostaglandin E sub(2) (PGE sub(2)) by guinea pig pulmonary cells obtained by lung lavage. JF - Occupational and Environmental Medicine AU - Rousselle, MA AU - Elissalde, M H AU - Domelsmith, L N AD - USDA, ARS, South. Reg. Res. Cent., New Orleans, LA 70179, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 698 EP - 703 VL - 47 IS - 10 SN - 0007-1072, 0007-1072 KW - alkalies KW - Health & Safety Science Abstracts; Pollution Abstracts KW - occupational health KW - dust KW - physiology KW - textile industry KW - H SI6.8.7:DUST KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15816524?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Occupational+and+Environmental+Medicine&rft.atitle=Effect+of+alkali+treatment+on+physiological+activity+of+cotton+condensed+tannin.&rft.au=Rousselle%2C+MA%3BElissalde%2C+M+H%3BDomelsmith%2C+L+N&rft.aulast=Rousselle&rft.aufirst=MA&rft.date=1990-01-01&rft.volume=47&rft.issue=10&rft.spage=698&rft.isbn=&rft.btitle=&rft.title=Occupational+and+Environmental+Medicine&rft.issn=00071072&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - physiology; dust; textile industry; occupational health ER - TY - JOUR T1 - Sprayable self-encapsulating starch formulations for Bacillus thuringiensis . AN - 15815961; 2422020 AB - Under glasshouse conditions, various cornstarches and adjuvants were examined as encapsulating agents in sprayable formulations for Bacillus thuringiensis subsp. kurstaki Berliner. When these materials were suspended in water and tested for physical factors such as viscosity, clumping, and retention on plant surfaces, a range of responses was observed. All formulations tested had acceptable viscosity, but some formulations clumped. When applied to cotton leaves, certain formulations remained 2 wk. One of these formulations containing equal parts of Mira-sperse (a commercially available pregelatinized cornstarch) and sucrose (6% total solids) was selected for testing persistence of B. thuringiensis insecticidal activity against Ostrinia nubilalis Huebner neonate larvae. When encapsulating agents were present, insecticidal activity decreased over a 2-wk period significantly more slowly than when encapsulating agents were absent. JF - Journal of Economic Entomology AU - McGuire, M R AU - Shasha, B S AD - Plant Polym. Res., North. Reg. Res. Cent., USDA-ARS, 1815 N. University St., Peoria, IL 61604, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 1813 EP - 1817 VL - 83 IS - 5 SN - 0022-0493, 0022-0493 KW - Bacillus thuringiensis KW - subsp.kurstaki KW - formulations KW - encapsulation KW - sprays KW - larvae KW - toxicity KW - starch KW - Bacillus thuringiensis kurstaki KW - Lepidoptera KW - Ostrinia nubilalis KW - Pyralidae KW - biological control KW - Entomology Abstracts; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - A 01014:Others KW - Z 05182:Pathology KW - W 30513:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15815961?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Sprayable+self-encapsulating+starch+formulations+for+Bacillus+thuringiensis+.&rft.au=McGuire%2C+M+R%3BShasha%2C+B+S&rft.aulast=McGuire&rft.aufirst=M&rft.date=1990-01-01&rft.volume=83&rft.issue=5&rft.spage=1813&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Bacillus thuringiensis kurstaki; Pyralidae; Lepidoptera; Ostrinia nubilalis; biological control ER - TY - JOUR T1 - Abundance and identification of the leafmining guild on apple in the Mid-Atlantic states. AN - 15813158; 2418121 AB - The leafmining guild on apple in the northeastern United States was studied from 1983 to 1988. Ten species of leafminers, all Lepidoptera, were encountered during the sampling. Phyllonorycter spp. (P. blancardella and P. crataegella ) were the most ubiquitous and most abundant throughout the region. Lyonetia speculella was also abundant in both managed and unmanaged orchards, indicating a potential to become a pest. Bucculatrix pomifoliella and Coptodisca splendoriferella were abundant in unmanaged orchards, but were only rarely found in managed orchards. Coleophora serratella, Stigmella pomivorella, Parornix geminatella, Tischeria malifoliella and Recurvaria nanella were also found. A key to the most important leafminer species on apple in the mid-Atlantic states, based on leafmine characteristics, is presented. JF - Great Lakes Entomologist AU - Brown, M W AD - USDA, ARS, Appalachian Fruit Res. Stn., 45 Wiltshire Rd., Kearneysville, WV 25430, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 179 EP - 188 VL - 23 IS - 4 SN - 0090-0222, 0090-0222 KW - guilds KW - Entomology Abstracts; Ecology Abstracts KW - herbivores KW - population levels KW - keys KW - USA, Mid-Atlantic Region KW - Gracillariidae KW - Coleophoridae KW - Lepidoptera KW - Lyonetiidae KW - Tischeriidae KW - Malus KW - Z 05203:Relations to plants KW - Z 05130:Lepidoptera KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15813158?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Great+Lakes+Entomologist&rft.atitle=Abundance+and+identification+of+the+leafmining+guild+on+apple+in+the+Mid-Atlantic+states.&rft.au=Brown%2C+M+W&rft.aulast=Brown&rft.aufirst=M&rft.date=1990-01-01&rft.volume=23&rft.issue=4&rft.spage=179&rft.isbn=&rft.btitle=&rft.title=Great+Lakes+Entomologist&rft.issn=00900222&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Malus; Lepidoptera; Gracillariidae; Lyonetiidae; Coleophoridae; Tischeriidae; USA, Mid-Atlantic Region; population levels; keys; herbivores ER - TY - JOUR T1 - Olfactory response of eastern spruce budworm larvae to red spruce needles exposed to acid rain and elevated levels of ozone. AN - 15812187; 2420356 AB - Second-instar eastern spruce budworm larvae, Choristoneura fumiferana (Clem.), were tested in a two-choice, Y-type, wind-tunnel olfactometer for preferences for red spruce, Picea rubens Sarg., needles exposed for eight weeks to charcoal-filtered air (CFA) or 0.15 ppm ozone (O sub(3)) in combination with acidified rainfall at pH 4.2 or 3.0. Volatiles from needles treated with CFA plus pH 4.2 rain (control) were preferred over those from needles exposed to pH 3.0 rain + O sub(3) or O sub(3) alone; O sub(3)-treated needles were chosen over those exposed to pH 3.0 rain + O sub(3). No preference was shown between the pH 4.2 and 3.0 rain treatments. Larvae chose purified air flowing through the olfactometer in preference to needle volatiles from the pH 3.0 rain + O sub(3) treatment. JF - Journal of Chemical Ecology AU - Cannon, WN Jr AD - USDA For. Serv., Northeastern For. Exp. Stn., Delaware, OH 43015, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 3255 EP - 3262 VL - 16 IS - 12 SN - 0098-0331, 0098-0331 KW - Choristoneura fumiferana KW - effects on KW - ozone KW - Chemoreception Abstracts; Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - olfaction KW - acid rain KW - Lepidoptera KW - Tortricidae KW - Picea rubens KW - Z 05167:Behavior KW - D 04659:Insects KW - Y 25693:Insects KW - Z 05178:Environmental effects KW - R 18012:Vertebrates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15812187?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Olfactory+response+of+eastern+spruce+budworm+larvae+to+red+spruce+needles+exposed+to+acid+rain+and+elevated+levels+of+ozone.&rft.au=Cannon%2C+WN+Jr&rft.aulast=Cannon&rft.aufirst=WN&rft.date=1990-01-01&rft.volume=16&rft.issue=12&rft.spage=3255&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Picea rubens; Lepidoptera; Tortricidae; olfaction; acid rain ER - TY - JOUR T1 - Pink bollworm (Lepidoptera: Gelechiidae): Laboratory studies on the effect of cotton plant material on mating and oviposition of laboratory-reared and feral moths. AN - 15812103; 2420303 AB - Percentages of mating and spermatophores per female of feral but not laboratory-reared pink bollworm, Pectinophora gossypiella (Saunders), moths were increased near cotton plant material. Oviposition of feral and laboratory-reared moths increased near cotton plant material. Laboratory-reared pairs tended to begin mating about 1 to 2 h earlier than feral moths. Time in copula ranged from 67 to 81 min and 67 to 79 min for laboratory-reared and feral moths pairs, respectively. Feral female moths laid a higher percentage (66%) of their eggs on the cotton plant material, whereas laboratory-reared females laid a higher percentage (90%) on paper towel oviposition substrates. JF - Journal of Economic Entomology AU - Henneberry, T J AU - Clayton, TE AD - Western Cotton Res. Lab., USDA-ARS, 4135 E. Broadway, Phoenix, AZ 85040, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 1837 EP - 1840 VL - 83 IS - 5 SN - 0022-0493, 0022-0493 KW - Pectinophora gossypiella KW - effects on KW - Chemoreception Abstracts; Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - Gelechiidae KW - Lepidoptera KW - host plants KW - Gossypium KW - oviposition KW - mating KW - D 04659:Insects KW - Y 25693:Insects KW - Y 25423:Insects KW - R 18051:Reproductive behavior KW - Z 05192:Reproductive behavior UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15812103?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Pink+bollworm+%28Lepidoptera%3A+Gelechiidae%29%3A+Laboratory+studies+on+the+effect+of+cotton+plant+material+on+mating+and+oviposition+of+laboratory-reared+and+feral+moths.&rft.au=Henneberry%2C+T+J%3BClayton%2C+TE&rft.aulast=Henneberry&rft.aufirst=T&rft.date=1990-01-01&rft.volume=83&rft.issue=5&rft.spage=1837&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lepidoptera; Gelechiidae; Gossypium; mating; oviposition; host plants ER - TY - JOUR T1 - A novel attractant for Mexican fruit fly, Anastrepha ludens , from fermented host fruit. AN - 15811393; 2418972 AB - Chemicals from fermented chapote fruit were identified and evaluated as attractants for hungry adult Mexican fruit flies in laboratory and greenhouse bioassays. Twenty-eight chemicals identified from an attractive gas-chromatography fraction were as attractive as a chapote volatiles extract (CV) when mixed in the same amounts found in CV. Sixteen of the chemicals were slightly attractive to flies when tested individually. A mixture containing 15 of the chemicals by design and the 16th as an impurity, in arbitrary concentrations, was at least as attractive as the original CV. In a series of experiments, the number of chemicals was reduced to three by elimination of unneccessary components. The three-component mixture retained the attractiveness of the 15-component mixture. The three chemicals were 1,8-cineole, ethyl hexanoate, and hexanol (CEH). Attractiveness of the three-chemical mixture was equal to the sum of the attractiveness of the three individual components, suggesting that each chemical binds to a different receptor type that independently elicits partial attraction behavior. JF - Journal of Chemical Ecology AU - Robacker, D C AU - Tarshis Moreno, AM AU - Garcia, JA AU - Flath, R A AD - Crop Qual. and Fruit Insects Res., ARS, USDA, 2301 South International Blvd., Weslaco, TX 78596, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 2799 EP - 2816 VL - 16 IS - 10 SN - 0098-0331, 0098-0331 KW - attractants KW - Sargentia greggii KW - Chemoreception Abstracts; Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - plant extracts KW - Anastrepha ludens KW - host plants KW - Tephritidae KW - Diptera KW - Z 05194:Communication KW - D 04659:Insects KW - Y 25693:Insects KW - Z 05175:Pheromones, repellents & attractants KW - R 18052:Feeding UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15811393?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=A+novel+attractant+for+Mexican+fruit+fly%2C+Anastrepha+ludens+%2C+from+fermented+host+fruit.&rft.au=Robacker%2C+D+C%3BTarshis+Moreno%2C+AM%3BGarcia%2C+JA%3BFlath%2C+R+A&rft.aulast=Robacker&rft.aufirst=D&rft.date=1990-01-01&rft.volume=16&rft.issue=10&rft.spage=2799&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Anastrepha ludens; Tephritidae; Diptera; host plants; plant extracts ER - TY - JOUR T1 - Overwintering survival and emergence of boll weevils (Coleoptera: Curculionidae) in cotton bolls in Arizona. AN - 15810801; 2415365 AB - Studies were conducted in Phoenix, Ariz., to determine the occurrence of boll weevil, Anthonomus grandis grandis Boheman, infestations in late-season cotton bolls, and the pattern of boll weevil emergence and survival and mortality in the bolls. Boll weevils emerged from bolls buried in moist vermiculite over a period of 232 to 239 d, from 29 January to 2 August. Higher percentages of emergence and lowest mortality in bolls occurred in bolls collected in November as compared with bolls collected in December. Few boll weevils emerged from bolls held under dry conditions in an outdoor insectary for 174 d. However, an average of 16% of the weevils were found alive in the dry bolls in late May. JF - Journal of Economic Entomology AU - Henneberry, T J AU - Meng, T Jr AU - Bariola, LA AD - Western Cotton Res. Lab., USDA-ARS, Phoenix, AZ 85040, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 1879 EP - 1882 VL - 83 IS - 5 SN - 0022-0493, 0022-0493 KW - overwintering KW - Ecology Abstracts; Entomology Abstracts KW - Coleoptera KW - Anthonomus grandis grandis KW - emergence KW - Gossypium KW - Curculionidae KW - survival KW - USA, Arizona, Phoenix KW - D 04659:Insects KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15810801?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Overwintering+survival+and+emergence+of+boll+weevils+%28Coleoptera%3A+Curculionidae%29+in+cotton+bolls+in+Arizona.&rft.au=Henneberry%2C+T+J%3BMeng%2C+T+Jr%3BBariola%2C+LA&rft.aulast=Henneberry&rft.aufirst=T&rft.date=1990-01-01&rft.volume=83&rft.issue=5&rft.spage=1879&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Anthonomus grandis grandis; Gossypium; Coleoptera; Curculionidae; USA, Arizona, Phoenix; survival; emergence ER - TY - JOUR T1 - Relative attraction of the Mediterranean fruit fly (Diptera: Tephritidae) to the eight isomers of trimedlure. AN - 15808979; 2411677 AB - Relative attractiveness tests with the eight individual racemic isomers of trimedlure, tert-butyl 4(and 5)-chloro-cis- and trans-2-methylcyclohexane-1-carboxylate (TML), showed that one of the four cis isomers, TML-Y (tert-butyl cis-5-chloro-cis-2-methylcyclohexane-1-carboxylate), was attractive to Ceratitis capitata (Wiedemann) and long lasting. The isomer is present in cis-TML in a concentration of about 5%. The three other cis isomers, which are present in about equal amounts, were unattractive. The relative attractiveness of the four trans isomers was the same as reported previously. Possible structure-activity relationships are discussed. JF - Journal of Economic Entomology AU - McGovern, T P AU - Warthen, JD Jr AU - Cunningham, R T AD - Trop. Fruit and Veg. Res. Lab., USDA-ARS, Hilo, HI 96720, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 1350 EP - 1354 VL - 83 IS - 4 SN - 0022-0493, 0022-0493 KW - Ceratitis capitata KW - isomers KW - trimedlure KW - Diptera KW - Tephritidae KW - attractancy KW - Biotechnology and Bioengineering Abstracts; Chemoreception Abstracts; Animal Behavior Abstracts; Entomology Abstracts KW - Z 05193:Orientation KW - Y 25693:Insects KW - W 30513:Pest control KW - R 18053:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15808979?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Relative+attraction+of+the+Mediterranean+fruit+fly+%28Diptera%3A+Tephritidae%29+to+the+eight+isomers+of+trimedlure.&rft.au=McGovern%2C+T+P%3BWarthen%2C+JD+Jr%3BCunningham%2C+R+T&rft.aulast=McGovern&rft.aufirst=T&rft.date=1990-01-01&rft.volume=83&rft.issue=4&rft.spage=1350&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Tephritidae; Diptera; attractancy ER - TY - JOUR T1 - Nucleotide and deduced amino acid sequence of the nonstructural phosphoprotein, NS2, of bluetongue virus serotype 17: Comparison to two isolates of serotype 10. AN - 15808882; 2406237 AB - The nucleotide sequence of bluetongue virus (BTV) serotype 17 segment 8 from North America (NA) coding for the nonstructural phosphoprotein, NS2, was determined. This segment contains 1125 base pairs and codes for a protein of 40,581 daltons containing 354 amino acids with a net charge of -8.5 at pH 7.0. The carboxyl terminal portion of the protein is very hydrophilic and has a high degree of potential alpha -helix. Comparison of the nucleotide sequence of BTV-17NA segment 8 with the sequence of BTV-10NA and BTV-10 South Africa (SA) revealed a greater degree of homology between different serotypes within the same geographical area, i.e., 17NA and 10NA, than between isolates of the same serotype located in different areas, i.e., 10NA and 10SA. The same homology relationship as above was found at the amino acid level. JF - Virus Research AU - Grubman, MJ AU - Zellner, M AU - Samal, S AD - USDA, ARS, NAA, Plum Island Anim. Dis. Cent., Box 848, Greenport, NY 11944, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 243 EP - 250 VL - 15 IS - 3 SN - 0168-1702, 0168-1702 KW - amino acid sequence KW - base pairs KW - bluetongue virus KW - helix KW - homology KW - nucleotide sequence KW - phosphoprotein NS2 KW - Microbiology Abstracts B: Bacteriology; Genetics Abstracts; Biochemistry Abstracts 2: Nucleic Acids; Virology & AIDS Abstracts KW - N 14640:Structure & sequence KW - V 22050:Viral genetics including virus reactivation KW - G 07313:Viruses KW - J:20320 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15808882?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Virus+Research&rft.atitle=Nucleotide+and+deduced+amino+acid+sequence+of+the+nonstructural+phosphoprotein%2C+NS2%2C+of+bluetongue+virus+serotype+17%3A+Comparison+to+two+isolates+of+serotype+10.&rft.au=Grubman%2C+MJ%3BZellner%2C+M%3BSamal%2C+S&rft.aulast=Grubman&rft.aufirst=MJ&rft.date=1990-01-01&rft.volume=15&rft.issue=3&rft.spage=243&rft.isbn=&rft.btitle=&rft.title=Virus+Research&rft.issn=01681702&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - nucleotide sequence; amino acid sequence; helix; base pairs ER - TY - JOUR T1 - Landsat TM versus MSS data for forest type identification. AN - 15806671; 2397393 AB - Landsat Thematic Mapper (TM) and Multispectral Scanner (MSS) data were digitally analyzed for forest type identification in the Kisatchie Ranger District, Kisatchie National Forest, Louisiana. Ground-verification maps were produced from field surveys and interpretation of 1:12,000 and 1:58,000 color-infrared (CIR) aerial photography of nine compartments. Stand boundary and soils maps were input to a digital Geographic Information System (GIS) with the Landsat and ground-verification data. JF - Geocarto International AU - Evans, D L AU - Hill, J M AD - USDA For. Serv., South. For. Exp. Stn., For. Sci. Lab., P.O. Box 906, Starkville, MS 39759, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 13 EP - 20 VL - 5 IS - 3 SN - 1010-6049, 1010-6049 KW - Landsat KW - Thematic Mapper KW - aerial photography KW - forestry KW - forests KW - geography KW - information systems KW - photography KW - remote sensing KW - Health & Safety Science Abstracts KW - H SE1.13:INSTRUMENTATION, DEVICES AND CONTROLS UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15806671?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geocarto+International&rft.atitle=Landsat+TM+versus+MSS+data+for+forest+type+identification.&rft.au=Evans%2C+D+L%3BHill%2C+J+M&rft.aulast=Evans&rft.aufirst=D&rft.date=1990-01-01&rft.volume=5&rft.issue=3&rft.spage=13&rft.isbn=&rft.btitle=&rft.title=Geocarto+International&rft.issn=10106049&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - remote sensing; photography; information systems; geography; forests; forestry ER - TY - JOUR T1 - Performance of controlled release dispensers for grandlure, the pheromone of the boll weevil (Coleoptera: Curculionidae). AN - 15806196; 2411656 AB - Comparison of laboratory-measured release rates with boll weevil captures showed that dispensers containing 10 mg of grandlure with a release rate of 10 mu g/hr or higher generally produced weevil captures which were at least 50% as high as those with the reference, fresh cigarette filter. Emission rates of ca. 3 mu g/hr or lower and amounts of residual grandlure of less than or equal to 2 mg generally resulted in weevil captures below the 50% threshold. Comparisons of commercial disperser formulations containing 10 mg of grandlure showed that a Hercon orange plastic laminate (H-OL-T) was most effective in prolonging the release of grandlure in both field and laboratory evaluations. Its emission rate was least affected by temperature changes. Scentry PVC dispensers (S-T-T, S-C-T, S-S-T, and S-YS-T) and the Consep membrane (C-M-T) lost grandlure more rapidly than did the laminate; however, differences in weevil captures were often not significant. Fermone black PVC squares (F-S-T and F-OS-T), AgriSense polymeric rods, (A-50R-T and A-35R-T) and the cigarette filter (CF-T) were less effective in extending the release of grandlure. JF - Journal of Entomological Science AU - Leonhardt, BA AU - Dickerson, WA AU - Ridgeway, R L AU - DeVilbiss, ED AD - Insect Chem. Ecol. Lab., USDA-ARS, Beltsville, MD 20705, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 414 EP - 426 VL - 25 IS - 3 SN - 0749-8004, 0749-8004 KW - Anthonomus grandis KW - grandlure KW - Coleoptera KW - Curculionidae KW - pheromone traps KW - Biotechnology and Bioengineering Abstracts; Chemoreception Abstracts; Entomology Abstracts KW - W 30513:Pest control KW - Z 05207:Agricultural & general applied entomology KW - R 18053:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15806196?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Entomological+Science&rft.atitle=Performance+of+controlled+release+dispensers+for+grandlure%2C+the+pheromone+of+the+boll+weevil+%28Coleoptera%3A+Curculionidae%29.&rft.au=Leonhardt%2C+BA%3BDickerson%2C+WA%3BRidgeway%2C+R+L%3BDeVilbiss%2C+ED&rft.aulast=Leonhardt&rft.aufirst=BA&rft.date=1990-01-01&rft.volume=25&rft.issue=3&rft.spage=414&rft.isbn=&rft.btitle=&rft.title=Journal+of+Entomological+Science&rft.issn=07498004&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Curculionidae; Coleoptera; pheromone traps ER - TY - JOUR T1 - Triadimenol stimulates aflatoxin production by Aspergillus flavus in vitro. AN - 15805110; 2419256 AB - Effects of the sterol biosynthesis-inhibiting fungicide triadimenol on two isolates of Aspergillus flavus were studied in vitro. Concentrations from 1-100 p.p.m. triadimenol stimulated aflatoxin production. Maximum stimulation was about 25-fold in one isolate and 700-fold in the other. Triadimenol concentrations above 2 multiplied by 5 p.p.m. inhibited radial growth in both isolates, and inhibited sclerotium formation in the isolate that made sclerotia. Final pH of cultures increased with fungicide concentration. Changes in sclerotium and aflatoxin formation were correlated with, but not caused by, changes in pH. In vitro responses to triadimenol are evidence of a close relationship between sclerotium and aflatoxin production. Implications for use of triadimenol to control contamination of crops by A. flavus are discussed. JF - Mycological Research AU - Bayman, P AU - Cotty, P J AD - USDA ARS South. Reg. Res. Cent., P.O. Box 19687, New Orleans, LA 70179, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 1023 EP - 1025 VL - 94 IS - 8 SN - 0953-7562, 0953-7562 KW - Aspergillus flavus KW - biosynthesis KW - stimulation KW - triadimenol KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - aflatoxins KW - A 01038:5-membered heterocyclic fungicides KW - A 01022:Mycotoxins KW - K 03082:Mycotoxins UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15805110?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mycological+Research&rft.atitle=Triadimenol+stimulates+aflatoxin+production+by+Aspergillus+flavus+in+vitro.&rft.au=Bayman%2C+P%3BCotty%2C+P+J&rft.aulast=Bayman&rft.aufirst=P&rft.date=1990-01-01&rft.volume=94&rft.issue=8&rft.spage=1023&rft.isbn=&rft.btitle=&rft.title=Mycological+Research&rft.issn=09537562&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - aflatoxins ER - TY - JOUR T1 - Pre-Africanized Apis mellifera (Hymenoptera: Apidae) swarming dynamics in Northeastern Mexico and Southern Texas. AN - 15804244; 2401642 AB - Two transects of clustered, pulp-pot style bait-hives were established in early 1988 to document, in advance of the northward dispersal of the Africanized honey bee, swarming activity and other characteristics of existing Apis mellifera populations in the northeastern Mexican state of Tamaulipas (63 monitoring sites; 252 traps) and in the Rio Grande valley of southern Texas (36 sites; 144 traps). This represents the first such longterm study of subtropical European honey bee swarming dynamics in the Americas. Swarming activity has been present during all months of the ongoing study (March to October) and has been bimodal with highest swarming levels from March to May and September to October. Slightly earlier swarming was observed on the Mexican transect. During the first 8 months of study reported here we captured a total of 277 swarms from the Mexican and 164 from the Texas transect. JF - Journal of the Kansas Entomological Society AU - Rubink, W L AU - Wilson, W T AU - Resendez B, JJ AU - Maki, D L AD - USDA, ARS, Honey Bee Res. Unit, 2413 E. Highw. 83, Weslaco, TX 78596, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 288 EP - 297 VL - 63 IS - 2 SN - 0022-8567, 0022-8567 KW - swarming behavior KW - pre-Africanized KW - Mexico, Northeast KW - Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - Apis mellifera KW - dispersal KW - USA, Texas KW - Hymenoptera KW - Apidae KW - Z 05204:Dispersal & migration KW - D 04659:Insects KW - Y 25423:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15804244?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Kansas+Entomological+Society&rft.atitle=Pre-Africanized+Apis+mellifera+%28Hymenoptera%3A+Apidae%29+swarming+dynamics+in+Northeastern+Mexico+and+Southern+Texas.&rft.au=Rubink%2C+W+L%3BWilson%2C+W+T%3BResendez+B%2C+JJ%3BMaki%2C+D+L&rft.aulast=Rubink&rft.aufirst=W&rft.date=1990-01-01&rft.volume=63&rft.issue=2&rft.spage=288&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Kansas+Entomological+Society&rft.issn=00228567&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Apis mellifera; Hymenoptera; Apidae; USA, Texas; dispersal ER - TY - JOUR T1 - Risking it on wildlands: The evolution of adventure recreation. AN - 15800902; 2402056 AB - Beauty, solitude, and escape from the stresses of society have long been values associated with forests and wildlands. To an increasing number of outdoor recreation seekers, these natural areas are also places to seek adventure. The modern concept of adventure is much different from those that prevailed throughout much of history. This is true both in the type of experience sought and in the reasons for seeking that experience. This article explores the societal influences that led to these more contemporary views surrounding the adventure experience. Underlying this discussion is the belief that adventure, while similar to outdoor recreation, is a distinct type of recreational experience. Although both types of activities involve a combination of individuals, settings, and desired outcomes, only adventure recreation includes the deliberate seeking of risk and danger in a leisure-time setting. JF - Journal of Environmental Education AU - Ewert, A AU - Hollenhorst, S AD - Pacific Southwest Forest and Range Exp. Stn., USDA Forest Serv., Riverside, CA, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 29 EP - 36 VL - 21 IS - 3 SN - 0095-8964, 0095-8964 KW - recreation KW - adventure KW - Ecology Abstracts KW - wilderness KW - risks KW - D 04902:Recreation/landscaping UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15800902?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Education&rft.atitle=Risking+it+on+wildlands%3A+The+evolution+of+adventure+recreation.&rft.au=Ewert%2C+A%3BHollenhorst%2C+S&rft.aulast=Ewert&rft.aufirst=A&rft.date=1990-01-01&rft.volume=21&rft.issue=3&rft.spage=29&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Education&rft.issn=00958964&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - wilderness; risks ER - TY - JOUR T1 - Adhesion of phenol-formaldehyde resin to waterborne emulsion preservatives in aspen veneer. AN - 15800343; 2406405 AB - Four water borne emulsion preservatives-chlorothalonil (CTN), copper naphthenate (CUN), copper octoate (CUO), and zinc naphthenate (ZNN)-and the waterborne salt preservative, ammoniacal copper arsenate (ACA), were tested for their compatibility with phenol-formaldehyde (PF) adhesive. Aspen veneers were treated with preservatives to retentions of 0.2, 0.4, and 0.6 pcf, then bonded with PF adhesive after 10-, 15-, and 20-minute closed assembly times. Effectiveness of adhesion was determined by measuring shear strength and wood failure of bonds while saturated with water. Preservative type, retention level, and length of assembly time significantly affected the durability of bonds. Generally, wood failure decreased as retention level increased. ACA and CUN interfered less with adhesion than did the other preservatives. JF - Forest Products Journal AU - Vick, C B AD - USDA For. Serv., For. Prod. Lab., One Gifford Pinchot Dr., Madison, WI 53705-2398, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 25 EP - 30 VL - 40 IS - 11-12 SN - 0015-7473, 0015-7473 KW - aromatic compound KW - preservation KW - adhesion KW - wood processing KW - emulsions KW - formaldehyde KW - lumber industry KW - Mechanical Engineering Abstracts (ISMEC); Health & Safety Science Abstracts KW - H SI1.23:LUMBER INDUSTRIES UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15800343?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Products+Journal&rft.atitle=Adhesion+of+phenol-formaldehyde+resin+to+waterborne+emulsion+preservatives+in+aspen+veneer.&rft.au=Vick%2C+C+B&rft.aulast=Vick&rft.aufirst=C&rft.date=1990-01-01&rft.volume=40&rft.issue=11-12&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Forest+Products+Journal&rft.issn=00157473&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - formaldehyde; emulsions; lumber industry ER - TY - JOUR T1 - Cloning and sequence analysis of a cDNA encoding the capsid protein of the MAV isolate of barley yellow dwarf virus. AN - 15798567; 2406752 JF - Nucleic Acids Research AU - Rizzo, T M AU - Gray, S M AD - USDA/ARS, Dep. Plant Pathol., Cornell Univ., Ithaca, NY 14853, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 4625 VL - 18 IS - 15 SN - 0305-1048, 0305-1048 KW - barley yellow dwarf virus KW - cDNA KW - capsid protein KW - cloning KW - codons KW - nucleotide sequence KW - open reading frame KW - Microbiology Abstracts B: Bacteriology; Genetics Abstracts; Biochemistry Abstracts 2: Nucleic Acids; Virology & AIDS Abstracts KW - N 14640:Structure & sequence KW - V 22050:Viral genetics including virus reactivation KW - G 07313:Viruses KW - J:20320 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15798567?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nucleic+Acids+Research&rft.atitle=Cloning+and+sequence+analysis+of+a+cDNA+encoding+the+capsid+protein+of+the+MAV+isolate+of+barley+yellow+dwarf+virus.&rft.au=Rizzo%2C+T+M%3BGray%2C+S+M&rft.aulast=Rizzo&rft.aufirst=T&rft.date=1990-01-01&rft.volume=18&rft.issue=15&rft.spage=4625&rft.isbn=&rft.btitle=&rft.title=Nucleic+Acids+Research&rft.issn=03051048&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - nucleotide sequence; capsid protein; codons; cDNA ER - TY - JOUR T1 - Pathogenesis in Aspergillus ear rot of maize: Aflatoxin B sub(1) levels in grains around wound-inoculation sites. AN - 15798191; 2402845 AB - Aflatoxin contamination of preharvest maize intermittently presents serious problems in grain storage and in animal health. To determine whether this mycotoxin can be translocated through the ear in the absence of hyphae, we harvested 21 grains from around each of 21 wound-inoculation sites of maize ears matured at 34/30 C (day/night). Statistical treatment showed that no two grains chosen at random had different average toxin levels: there was no pattern discernible in toxin accumulation. Highly contaminated individual grains rarely had highly contaminated neighbors. Finally, of the 413 grains assayed, almost 80% either were aflatoxin-positive and showed signs of the fungus or were not aflatoxin-positive and had no signs of the fungus. Only 58 grains (14%) had detectable toxin levels without fungal signs. We conclude that long-distance transport of aflatoxin does not occur in infected ears independently of the hyphae. JF - Phytopathology AU - Smart, M G AU - Shotwell, O L AU - Caldwell, R W AD - Ferment. Biochem. Res. Unit and Mycotoxin Res. Unit, USDA-ARS, Northern Reg. Res. Cent., 1815 N. University St., Peoria, IL 61604, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 1283 EP - 1286 VL - 80 IS - 12 SN - 0331-949X, 0331-949X KW - Aspergillus flavus KW - levels KW - inoculation KW - experimental infection KW - aflatoxin B1 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Zea mays KW - grain KW - ear rot KW - K 03089:Fungi: plant KW - A 01022:Mycotoxins KW - K 03082:Mycotoxins KW - A 01026:Gramineous crops UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15798191?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Phytopathology&rft.atitle=Pathogenesis+in+Aspergillus+ear+rot+of+maize%3A+Aflatoxin+B+sub%281%29+levels+in+grains+around+wound-inoculation+sites.&rft.au=Smart%2C+M+G%3BShotwell%2C+O+L%3BCaldwell%2C+R+W&rft.aulast=Smart&rft.aufirst=M&rft.date=1990-01-01&rft.volume=80&rft.issue=12&rft.spage=1283&rft.isbn=&rft.btitle=&rft.title=Phytopathology&rft.issn=0331949X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Zea mays; grain; ear rot ER - TY - JOUR T1 - Heat-treating and drying southern pine lumber infested with pinewood nematodes. AN - 15797938; 2407088 AB - The European Economic Community is considering regulations, including a kiln-dried requirement, for all imported coniferous sawnwood in order to protect European forests from exotic tree pests such as the pinewood nematode, Bursaphelenchus xylophilus . The pinewood nematode is transmitted when its insect vector, the pine sawyer (Monochamus spp.), lays its eggs in freshly cut, felled, dying, or recently dead conifers. Therefore, the nematode may occasionally be present in green lumber. This study was undertaken to determine if the nematode could survive in heat-treated and kiln- or air-dried southern pine lumber. JF - Forest Products Journal AU - Dwinell, L D AD - USDA For. Serv., Southeast. For. Exp. Stn., For. Sci. Lab., Athens, GA 30602, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 53 EP - 56 VL - 40 IS - 11-12 SN - 0015-7473, 0015-7473 KW - lumber industry KW - nematodes KW - Health & Safety Science Abstracts KW - forests KW - Bursaphelenchus xylophilus KW - thermodynamics KW - Monochamus KW - H SE1.20:FORESTRY KW - H SI1.23:LUMBER INDUSTRIES UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15797938?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Products+Journal&rft.atitle=Heat-treating+and+drying+southern+pine+lumber+infested+with+pinewood+nematodes.&rft.au=Dwinell%2C+L+D&rft.aulast=Dwinell&rft.aufirst=L&rft.date=1990-01-01&rft.volume=40&rft.issue=11-12&rft.spage=53&rft.isbn=&rft.btitle=&rft.title=Forest+Products+Journal&rft.issn=00157473&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Bursaphelenchus xylophilus; Monochamus; thermodynamics; forests ER - TY - JOUR T1 - Population distribution of flower thrips and the western flower thrips (Thysanoptera: Thripidae) in nectarines and their relative association with injury to fruit in the Southeastern United States. AN - 15797211; 2398252 AB - Thrips populations and injury attributed to thrips feeding on fruit surfaces was monitored in unsprayed middle Georgia nectarines during 1986-1988. The flower thrips, Frankliniella tritici (Fitch), the western flower thrips, Frankliniella occidentalis (Pergande), and the soybean thrips, Neohydatothrips variabilis (Beach), were the most abundant thrips species recovered from the orchard. Their relative abundance changed each year. The western flower thrips particularly appears to be most damaging in causing russeting on fruit surfaces. Silvering injury was caused by either or both of the flower thrips and coincided with peak populations of adults at or near final fruit swell. Soybean thrips caused little or no injury to fruit. None of the above mentioned flower thrips species were recovered from various weed and grass species in and near the nectarine orchard during two years of overwintering studies. JF - Journal of Entomological Science AU - Yonce, CE AU - Beshear, R J AU - Payne, JA AU - Horton, D L AD - Southeastern Fruit and Tree Nut Res. Lab., USDA-ARS, P.O. Box 87, Bryon, GA 31008, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 427 EP - 438 VL - 25 IS - 3 SN - 0749-8004, 0749-8004 KW - abundance KW - damage KW - Ecology Abstracts; Entomology Abstracts KW - Thysanoptera KW - integrated control KW - USA, Southeast KW - Prunus KW - pests KW - species composition KW - orchards KW - Thripidae KW - D 04659:Insects KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15797211?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Entomological+Science&rft.atitle=Population+distribution+of+flower+thrips+and+the+western+flower+thrips+%28Thysanoptera%3A+Thripidae%29+in+nectarines+and+their+relative+association+with+injury+to+fruit+in+the+Southeastern+United+States.&rft.au=Yonce%2C+CE%3BBeshear%2C+R+J%3BPayne%2C+JA%3BHorton%2C+D+L&rft.aulast=Yonce&rft.aufirst=CE&rft.date=1990-01-01&rft.volume=25&rft.issue=3&rft.spage=427&rft.isbn=&rft.btitle=&rft.title=Journal+of+Entomological+Science&rft.issn=07498004&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Thysanoptera; Thripidae; Prunus; USA, Southeast; species composition; pests; orchards; integrated control ER - TY - JOUR T1 - Pathogenesis in Aspergillus ear rot of maize: Light microscopy of fungal spread from wounds. AN - 15796941; 2402818 AB - We describe the histology of fungal development in maize ears wound inoculated with Aspergillus flavus . Plants were inoculated 21 days after style emergence; wounded grains and adjacent spikelets (with their rachis segments) were harvested at intervals up to 28 days later. Tissues were processed for plastic embedding and 1.5- mu m thick sections were examined by bright field microscopy. The fungus spread from the wound sometime after 14 days postinoculation, and at 28 days postinoculation it could be found in small amounts throughout all rachis tissues except the pith and lignified fibers. The fungus entered the rachillae of adjacent spikelets from the rachis and also from the bracts at their insertion point. The fungus grew through the aerenchyma in the rachilla to the floral axis and innermost layers of the pericarp (the endocarp). JF - Phytopathology AU - Smart, M G AU - Wicklow, D T AU - Caldwell, R W AD - Ferment. Biochem. Res. Unit and Mycotoxin Res. Unit, USDA-ARS, North. Reg. Res. Cent., 1815 N. University St., Peoria, IL 61604, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 1287 EP - 1294 VL - 80 IS - 12 SN - 0331-949X, 0331-949X KW - Aspergillus flavus KW - pathogenesis KW - hyphae KW - disease spread KW - histopathology KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Zea mays KW - grain KW - ear rot KW - K 03089:Fungi: plant KW - A 01026:Gramineous crops UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15796941?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Phytopathology&rft.atitle=Pathogenesis+in+Aspergillus+ear+rot+of+maize%3A+Light+microscopy+of+fungal+spread+from+wounds.&rft.au=Smart%2C+M+G%3BWicklow%2C+D+T%3BCaldwell%2C+R+W&rft.aulast=Smart&rft.aufirst=M&rft.date=1990-01-01&rft.volume=80&rft.issue=12&rft.spage=1287&rft.isbn=&rft.btitle=&rft.title=Phytopathology&rft.issn=0331949X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Zea mays; grain; ear rot ER - TY - JOUR T1 - Population dynamics of alfalfa seed chalcids (Hymenoptera: Eurytomidae) and their parasites in Oklahoma. AN - 15796266; 2395839 AB - Adults of the alfalfa seed chalcid (ASC), Bruchophagus roddi Gussakovskii, were monitored in four counties in Oklahoma from mid-May until the end of September, with maximal population densities generally occurring in August. Female ASC in the alfalfa fields outnumbered males by ratios of 1.5:1 to 2:1. Peaks of adult ASC emergence in different fields ranged from three to six per year. Four genera of ASC parasites were collected: Liodontomerus perplexus Gahan, Tetrastichus bruchophagus Gahan, Trimeromicrus maculatus Gahan, and Eupelmus allynii (French). Percentage of adult parasites in the host/parasite complex was 41.5% in 1983 and 55.7% in 1984. Adult parasites were more numerous than adult ASC during the later part of the season, and peak densities of parasites occurred one week later than peak densities of ASC. Female parasites outnumbered males by ratios of 3:1 to 7:1. This study shows that during the alfalfa seed production season in Oklahoma there is no "safe data" or time period where adult ASC are not present in the fields. JF - Journal of the Kansas Entomological Society AU - Thoenes, S C AU - Moffett, JO AD - USDA-ARS Carl Hayden Bee Res. Cent., 2000 E. Allen Rd., Tucson, AZ 85719, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 361 EP - 368 VL - 63 IS - 3 SN - 0022-8567, 0022-8567 KW - population dynamics KW - Ecology Abstracts; Entomology Abstracts KW - Torymidae KW - Eupelmidae KW - parasitoids KW - Bruchophagus roddi KW - Eulophidae KW - USA, Oklahoma KW - Eurytomidae KW - Hymenoptera KW - Pteromalidae KW - Z 05205:Populations & general ecology KW - Z 05201:Parasitism: entomophagous KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15796266?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Kansas+Entomological+Society&rft.atitle=Population+dynamics+of+alfalfa+seed+chalcids+%28Hymenoptera%3A+Eurytomidae%29+and+their+parasites+in+Oklahoma.&rft.au=Thoenes%2C+S+C%3BMoffett%2C+JO&rft.aulast=Thoenes&rft.aufirst=S&rft.date=1990-01-01&rft.volume=63&rft.issue=3&rft.spage=361&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Kansas+Entomological+Society&rft.issn=00228567&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Hymenoptera; Eurytomidae; Bruchophagus roddi; Torymidae; Eulophidae; Pteromalidae; Eupelmidae; USA, Oklahoma; parasitoids ER - TY - JOUR T1 - Changes in productivity and distribution of nutrients in a chronosequence at Glacier Bay National Park, Alaska. AN - 15795220; 2396052 AB - By assessing productivity and ecosystem nutrient distribution, this work extends the early classic studies of the influence of N sub(2) fixers and conifers on soil development and nitrogen accumulation in a primary succession chronosequence at Glacier Bay, Alaska, U.S.A. The nitrogen-fixing shrub Alnus sinuata) (Sitka alder) dominates recently deglaciated sites along Glacier Bay but is replaced by Picea sitchensis (Sitka spruce) after about 80 years. While Alnus dominated, soil organic matter and nitrogen (N) increased very rapidly. Above-ground biomass accumulated much more rapidly as Picea gained dominance over Alnus . Increase in biomass was accompanied by a decline in soil N. In maturing Picea stands (100-160 years old), N in above-ground biomass, especially current-year foliage, declined, perhaps because N began to accumulate in poorly decomposable organic (O) and podzolic (Bh) soil horizons. JF - Journal of Ecology AU - Bormann, B T AU - Sidle, R C AD - USDA For. Serv., Pacific Northwest Res. Stn., Corvallis, OR 97331, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 561 EP - 578 VL - 78 IS - 3 SN - 0022-0477, 0022-0477 KW - productivity KW - Alnus sinuata KW - Ecology Abstracts KW - nutrient dynamics KW - succession KW - USA, Alaska, Glacier Bay Natl. Park KW - Picea sitchensis KW - soil KW - D 04140:Taiga/tundra KW - D 04600:Soil UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15795220?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Ecology&rft.atitle=Changes+in+productivity+and+distribution+of+nutrients+in+a+chronosequence+at+Glacier+Bay+National+Park%2C+Alaska.&rft.au=Bormann%2C+B+T%3BSidle%2C+R+C&rft.aulast=Bormann&rft.aufirst=B&rft.date=1990-01-01&rft.volume=78&rft.issue=3&rft.spage=561&rft.isbn=&rft.btitle=&rft.title=Journal+of+Ecology&rft.issn=00220477&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Picea sitchensis; USA, Alaska, Glacier Bay Natl. Park; nutrient dynamics; soil; succession ER - TY - JOUR T1 - Patterns of vegetation and grasshopper community composition. AN - 15794331; 2396663 AB - A study was conducted to evaluate differences in rangeland grasshopper communities over environmental gradients in Gallatin Valley, Montana, USA. The concept of habitat type was used as a basis for discriminating between groupings of patches based on vegetation. A total of 39 patches were selected that represented five recognized grassland habitat types, as well as two disturbed types (replanting within a known habitat type). Repeated sampling in 1988 of both the insect and plant communities yielded a total of 40 grasshopper (19664) individuals) and 97 plant species. Detrended Correspondence Analysis (DCA) indicated that patch classifications based on presence and percent cover of plants were appropriate and showed good between-group (habitat type) separation for patches along gradients of precipitation/elevation and plant community complexity. JF - Oecologia AU - Kemp, W P AU - Harvey, S J AU - O'Neill, K M AD - USDA, Agric. Res. Serv., Rangeland Insect Lab. Bozeman, MT 59717, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 299 EP - 308 VL - 83 IS - 3 SN - 0029-8549, 0029-8549 KW - community composition KW - USA, Montana, Gallatin Valley KW - Ecology Abstracts; Entomology Abstracts KW - vegetation patterns KW - Orthoptera KW - gradients KW - Z 05205:Populations & general ecology KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15794331?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Oecologia&rft.atitle=Patterns+of+vegetation+and+grasshopper+community+composition.&rft.au=Kemp%2C+W+P%3BHarvey%2C+S+J%3BO%27Neill%2C+K+M&rft.aulast=Kemp&rft.aufirst=W&rft.date=1990-01-01&rft.volume=83&rft.issue=3&rft.spage=299&rft.isbn=&rft.btitle=&rft.title=Oecologia&rft.issn=00298549&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Orthoptera; vegetation patterns; gradients ER - TY - JOUR T1 - Influence of environment on conidial concentration of Alternaria porri in air and on purple blotch incidence on onion. AN - 15793097; 2403159 AB - A study was conducted to determine the influence of weather variables on conidial concentration of Alternaria porri in air above an onion field in Michigan. Temperature, humidity, leaf wetness, rainfall, solar radiation, wind speed, and concentration of airborne conidia were monitored at the Michigan State University Muck Experimental Farm in 1985 and 1987. Weather instruments and spore trap were placed in the center of an unsprayed 15- x 30-m plot of field seeded Spartan Banner onions. In both years, the natural logarithm of numbers of airborne conidia sampled during the current day (D) was positively correlated with 1) the maximum hourly vapor pressure deficit (VPD) (= saturation-ambient vapor pressure) on D, and 2) the logarithm of the conidial concentration sampled on D-1. A regression equation was developed to predict relative conidial concentration on day D in 1987 that explained 59% of the variability. JF - Phytopathology AU - Everts, K L AU - Lacy, M L AD - USDA-ARS, Dep. Plant Pathol., North Carolina State Univ., Box 7616, Raleigh, NC 27695-7616, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 1387 EP - 1391 VL - 80 IS - 12 SN - 0331-949X, 0331-949X KW - Alternaria porri KW - crop fields KW - epidemiology KW - USA, Michigan KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - conidia KW - environmental conditions KW - purple blotch KW - air spora KW - Allium cepa KW - weather KW - A 01028:Others KW - K 03089:Fungi: plant UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15793097?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Phytopathology&rft.atitle=Influence+of+environment+on+conidial+concentration+of+Alternaria+porri+in+air+and+on+purple+blotch+incidence+on+onion.&rft.au=Everts%2C+K+L%3BLacy%2C+M+L&rft.aulast=Everts&rft.aufirst=K&rft.date=1990-01-01&rft.volume=80&rft.issue=12&rft.spage=1387&rft.isbn=&rft.btitle=&rft.title=Phytopathology&rft.issn=0331949X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Allium cepa; conidia; air spora; purple blotch; weather; environmental conditions ER - TY - JOUR T1 - Aerobic and anaerobic degradation of alachlor in samples from a surface-to-groundwater profile. AN - 15792724; 2392841 AB - Estimates of pesticide degradation rates in subsoils are needed to improve models predicting pesticide movement to groundwater. Biodegradation rates of the herbicide alachlor (2-chloro-(2,6-diethyl-phenyl)-N-(methoxymethyl)acetamide) in surface soil, vadose zone, and aquifer samples collected from a single site near Plains, GA were determined in the laboratory under aerobic and anaerobic conditions. Degradation was described by first-order kinetics during 126 d of incubation. Under aerobic conditions the half life (t sub(1/2)) of alachlor in the surface soil was less than in the vadose zone (t sub(1/2) = 73 to 285 d) and aquifer samples (t sub(1/2) = 320 to 324 d). Alachlor in anaerobic samples degraded less rapidly in the surface and the next deepest (0.6 to 2.4 m) subsoil than under aerobic conditions. JF - Journal of Environmental Quality AU - Pothuluri, J V AU - Moorman, T B AU - Obenhuber, D C AU - Wauchope, R D AD - USDA-ARS, South. Weed Sci. Lab., P.O. Box 350, Stoneville, MS 38776, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 525 EP - 530 VL - 19 IS - 3 SN - 0047-2425, 0047-2425 KW - alachlor KW - aerobic process KW - anaerobic process KW - Health & Safety Science Abstracts; Pollution Abstracts KW - biodegradation KW - herbicides KW - surface water KW - water sampling KW - groundwater KW - P 2000:FRESHWATER POLLUTION KW - H SE5.22:HERBICIDES UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15792724?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Aerobic+and+anaerobic+degradation+of+alachlor+in+samples+from+a+surface-to-groundwater+profile.&rft.au=Pothuluri%2C+J+V%3BMoorman%2C+T+B%3BObenhuber%2C+D+C%3BWauchope%2C+R+D&rft.aulast=Pothuluri&rft.aufirst=J&rft.date=1990-01-01&rft.volume=19&rft.issue=3&rft.spage=525&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - water sampling; groundwater; surface water; herbicides; biodegradation ER - TY - JOUR T1 - Biosynthesis and chemical mimicry of cuticular hydrocarbons from the obligate predator, Microdon albicomatus Novak (Diptera: Syrphidae) and its ant prey, Myrmica incompleta Provancher (Hymenoptera: Formicidae). AN - 15790208; 2398338 AB - The cuticular hydrocarbons of larval Microdon albicomatus , a predatory syrphid fly, are qualitatively identical to those of its prey, the pupae of the myrmicine ant, Myrmica incompleta . Eighteen hydrocarbon components were identified, including n-alkanes, 3-methyl alkanes, 11- and 13-methyl alkanes, a single dimethyl alkane (5,17-dimethyl pentacosane) and two Z-9-monoenes (23:1 and 25:1). The cuticular hydrocarbons of worker M. incompleta were also identified and shown to contain the same components as the ant pupae, but in different relative abundances. A radiolabelling experiment using 1- super(14)C-acetate with the Microdon larvae indicated that the fly biosynthesizes its hydrocarbons rather than procuring them from its prey. JF - Journal of the Kansas Entomological Society AU - Howard, R W AU - Stanley-Samuelson, D W AU - Akre, R D AD - USDA-ARS, U.S. Grain Mark. Res. Lab., 1515 College Ave., Manhattan, KS 66502, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 437 EP - 443 VL - 63 IS - 3 SN - 0022-8567, 0022-8567 KW - Microdon albicomatus KW - biosynthesis KW - Myrmica incompleta KW - Chemoreception Abstracts; Ecology Abstracts; Entomology Abstracts KW - predator-prey interactions KW - Syrphidae KW - Formicidae KW - mimicry KW - hydrocarbons KW - Hymenoptera KW - Diptera KW - D 04659:Insects KW - Z 05198:Defense & offense KW - Z 05173:Biochemistry & metabolism (incl. fat body) KW - R 18052:Feeding UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15790208?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Kansas+Entomological+Society&rft.atitle=Biosynthesis+and+chemical+mimicry+of+cuticular+hydrocarbons+from+the+obligate+predator%2C+Microdon+albicomatus+Novak+%28Diptera%3A+Syrphidae%29+and+its+ant+prey%2C+Myrmica+incompleta+Provancher+%28Hymenoptera%3A+Formicidae%29.&rft.au=Howard%2C+R+W%3BStanley-Samuelson%2C+D+W%3BAkre%2C+R+D&rft.aulast=Howard&rft.aufirst=R&rft.date=1990-01-01&rft.volume=63&rft.issue=3&rft.spage=437&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Kansas+Entomological+Society&rft.issn=00228567&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Diptera; Syrphidae; Hymenoptera; Formicidae; mimicry; hydrocarbons; predator-prey interactions ER - TY - JOUR T1 - Causes of basal scars on Chamaecyparis nootkatensis in southeast Alaska. AN - 15787796; 2394540 AB - Scars on the lower boles of Alaska yellow-cedar (Chamaecyparis nootkatensis (D. Don) Spach) trees are common in some unmanaged forests in southeast Alaska, but their cause has not been determined. The association of these scars with an extensive decline and mortality of unknown cause that affects Alaska yellow-cedar also has been unclear. Data from ground transects indicate that on Baranof and Chichagof Islands over one-half of the Alaska yellow-cedar trees in some stands are scarred, even though other tree species are not affected. Scars generally face upslope, do not girdle the entire circumference of the bole, average 1.5 m in height, and are most common on the best drained, most productive sites. These productive sites lack cedar decline. Callus tissue slowly forms over these basal scars, but decay develops in the wood, reducing wood volume in the valuable butt logs. Recent scars consistently have teeth marks in the exposed wood - evidence that bears cause this damage. Such basal scars are common on islands in southeast Alaska inhabited by brown bears (Ursus arctos ), but not on islands inhabited by black bears (Ursus americanus ). JF - Northwest Science AU - Hennon, P E AU - Hansen, E M AU - Shaw, CG III AD - USDA For. Serv., For. Pest Manage., P.O. Box 21628, Juneau, AK 99802, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 45 EP - 54 VL - 64 IS - 1 SN - 0029-344X, 0029-344X KW - scars KW - Chamaecyparis nootkatensis KW - Ecology Abstracts KW - USA, Alaska KW - Ursus KW - D 04635:Conifers KW - D 04672:Mammals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15787796?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Northwest+Science&rft.atitle=Causes+of+basal+scars+on+Chamaecyparis+nootkatensis+in+southeast+Alaska.&rft.au=Hennon%2C+P+E%3BHansen%2C+E+M%3BShaw%2C+CG+III&rft.aulast=Hennon&rft.aufirst=P&rft.date=1990-01-01&rft.volume=64&rft.issue=1&rft.spage=45&rft.isbn=&rft.btitle=&rft.title=Northwest+Science&rft.issn=0029344X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Ursus; USA, Alaska ER - TY - JOUR T1 - Quantitative genetic analysis of pathogenicity and virulence of Moesziomyces penicillariae . AN - 15785263; 2392329 AB - Forty-five isolates were selected to determine the genetic basis of pathogenicity and virulence of Moesziomyces penicillariae , the smut pathogen of pearl millet. Solopathogenicity of mycelial isolates, sporidial isolates, and sporidial isolates with a low frequency of reversion to the mycelial type were evaluated. The mycelial and revertant isolates expressed the highest levels of solopathogenic ability, as determined by greater numbers of sori formed per panicle. Sporidial isolates expressed the lowest levels of solopathogenic ability. Twenty-two sporidial isolates were used alone and in all combinations to inoculate 3 inflorescences each of Tift 23DA in the greenhouse and Tift 85DB in the field. In the partial diallel inoculations, specific combining ability effects were significant, indicating the presence of nonadditive genes conferring compatibility types. General combining ability effects were also significant, suggesting that the isolates differed in additive genes conferring virulence. JF - Phytopathology AU - Wilson, J P AU - Bondari, J AD - USDA-ARS Forage and Turf Res. Unit, Univ. Georgia, Coastal Plain Exp. Stn., Tifton, GA 31793-0748, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 1173 EP - 1177 VL - 80 IS - 11 SN - 0331-949X, 0331-949X KW - Moesziomyces penicillariae KW - virulence KW - pathogenicity KW - isolates KW - genetic analysis KW - vegetative reproduction KW - compatibility KW - Genetics Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - genes KW - combining ability KW - smut KW - Pennisetum glaucum KW - K 03089:Fungi: plant KW - G 07330:Fungal genetics KW - K 03079:Fungi KW - A 01026:Gramineous crops UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15785263?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Phytopathology&rft.atitle=Quantitative+genetic+analysis+of+pathogenicity+and+virulence+of+Moesziomyces+penicillariae+.&rft.au=Wilson%2C+J+P%3BBondari%2C+J&rft.aulast=Wilson&rft.aufirst=J&rft.date=1990-01-01&rft.volume=80&rft.issue=11&rft.spage=1173&rft.isbn=&rft.btitle=&rft.title=Phytopathology&rft.issn=0331949X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pennisetum glaucum; smut; combining ability; genes ER - TY - JOUR T1 - Chemistry of male mandibular gland secretions of Philanthus triangulum . AN - 15779523; 2390873 AB - Males of the European and African beewolf, Philanthus triangulum , possess a sex specific mandibular gland secretion that is used for marking plant stems in mating territories. The secretion is composed of 90% (Z)-11-eicosen-1-ol plus small amounts of 10-nondecen-2-one, nonadecenal, octadecanoic and octadecenoic acids, and eicosenal. The chemistry of this secretion differs markedly from the secretions of North American Philanthus , which consist of a larger number of components that possess different chemical functionalities and are more volatile. We postulate that the chemical differences between P. triangulum and its New World relatives reflect phylogenetic differences plus a possible reduced necessity for species isolating mechanisms in P. triangulum . JF - Journal of Chemical Ecology AU - Schmidt, JO AU - McDaniel, CA AU - Simon Thomas, RT AD - Carl Hayden Bee Res. Cent., USDA-ARS 2000 E. Allen Rd., Tucson, AZ 85719, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 2135 EP - 2144 VL - 16 IS - 7 SN - 0098-0331, 0098-0331 KW - Philanthus triangulum KW - comparison KW - males KW - Chemoreception Abstracts; Ecology Abstracts; Entomology Abstracts KW - North America KW - Europe KW - Sphecidae KW - mandibular gland KW - secretions KW - Hymenoptera KW - D 04659:Insects KW - R 18051:Reproductive behavior KW - Z 05179:Glands & secretions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15779523?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Chemistry+of+male+mandibular+gland+secretions+of+Philanthus+triangulum+.&rft.au=Schmidt%2C+JO%3BMcDaniel%2C+CA%3BSimon+Thomas%2C+RT&rft.aulast=Schmidt&rft.aufirst=JO&rft.date=1990-01-01&rft.volume=16&rft.issue=7&rft.spage=2135&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Hymenoptera; Sphecidae; North America; Europe; mandibular gland; secretions ER - TY - JOUR T1 - Biology and pathogenicity of Pratylenchus neglectus on alfalfa. AN - 15778145; 2378040 AB - Pratylenchus neglectus reduced the growth of alfalfa cultivars in greenhouse and growth chamber studies. Inocula (1,000, 5,000 and 10,000 nematodes per plant) reduced shoot dry weights of Ranger by 16, 27, and 40%, of Lahontan by 16, 32, and 40%, and of Nevada Synthetic XX (Nev Syn XX) by 18, 26, and 37%, respectively, at 26 plus or minus 2 C. Pratylenchus neglectus at 1,000 nematodes per plant reduced Ranger shoot dry weights by 5, 12, 18, and 27%, at 15, 20, 25, and 30 C, respectively, whereas 5,000 nematodes per plant reduced shoot dry weights by 12, 17, 26, and 38%, respectively, at similar temperatures. Reductions in dry root weights were directly related to reductions in shoot growth. At 1,000 nematodes per plant, Ranger root dry weights were reduced by 3, 14, 40, and 40%, whereas 5,000 nematodes per plant reduced root dry weight by 25, 31, 59, and 63%, respectively, at similar temperature. Similar results were observed on Lahontan and Nev Syn XX at the same inoculum levels and soil temperatures. JF - Journal of Nematology AU - Griffin, G D AU - Gray, F A AD - USDA ARS, Forage and Range Res. Lab., Utah State Univ., Logan, UT 84322, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 546 EP - 551 VL - 22 IS - 4 SN - 0022-300X, 0022-300X KW - biology KW - Ecology Abstracts KW - Pratylenchus neglectus KW - plant diseases KW - pathogenesis KW - Medicago sativa KW - D 04656:Nematodes KW - D 04637:Legumes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15778145?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Nematology&rft.atitle=Biology+and+pathogenicity+of+Pratylenchus+neglectus+on+alfalfa.&rft.au=Griffin%2C+G+D%3BGray%2C+F+A&rft.aulast=Griffin&rft.aufirst=G&rft.date=1990-01-01&rft.volume=22&rft.issue=4&rft.spage=546&rft.isbn=&rft.btitle=&rft.title=Journal+of+Nematology&rft.issn=0022300X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pratylenchus neglectus; Medicago sativa; pathogenesis; plant diseases ER - TY - JOUR T1 - Nutrients and mass in litter and top soil of ten tropical tree plantations. AN - 15776664; 2386966 AB - The importance of litter to nutrient and organic matter storage and the possible influence of species selection on soil fertility in ten stands each consisting of a separate tree species were examined in this study. The plantations had been grown under similar conditions in an arboretum in the Luquillo Experimental Forest, Puerto Rico. The species involved were: Anthocephalus chinensis, Eucalyptus x patentinervis, E. saligna, Hernandia sonora, Hibiscus elatus, Khaya nyasica, Pinus caribaea var. hondurensis, P. elliottii var. densa, Swietenia macrophylla , and Terminalia ivorensis . After 26 yr, litter mass ranged from 5 Mg ha super(-1) in the H. sonora stand to 27.2 Mg ha super(-1) in the P. caribaea stand. Nutrients in the litter (N, P, K, Ca, and Mg) also varied widely, but stands were ranked in different order when ranked by nutrients in the litter than when ranked according to accumulation of mass. JF - Plant and Soil AU - Lugo, A E AU - Cuevas, E AU - Sanchez, MJ AD - Inst. Trop. For., USDA Forest Serv., Southern For. Exp. Stn., Call Box 25000, Rio Piedras, PR 00928-2500, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 263 EP - 280 VL - 125 IS - 2 SN - 0032-079X, 0032-079X KW - nutrient content KW - Puerto Rico, Luquillo Experimental Forest KW - Ecology Abstracts KW - plantations KW - tropical environment KW - biomass KW - trees KW - leaf litter KW - soil KW - D 04126:Tropical forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15776664?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Plant+and+Soil&rft.atitle=Nutrients+and+mass+in+litter+and+top+soil+of+ten+tropical+tree+plantations.&rft.au=Lugo%2C+A+E%3BCuevas%2C+E%3BSanchez%2C+MJ&rft.aulast=Lugo&rft.aufirst=A&rft.date=1990-01-01&rft.volume=125&rft.issue=2&rft.spage=263&rft.isbn=&rft.btitle=&rft.title=Plant+and+Soil&rft.issn=0032079X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - biomass; leaf litter; soil; tropical environment; plantations; trees ER - TY - JOUR T1 - The effect of Trichoderma spp. isolated from burned and non-burned forest soils on the growth and development of Armillaria ostoyae in culture. AN - 15775617; 2378125 AB - Several species of the fungus Armillaria cause root disease in a variety of plants worldwide. We wished to see if prescribed fire would alter the rhizosphere to favor the soil fungus Trichoderma spp. which has been shown to be strongly antagonistic to Armillaria , the fungus that causes Armillaria root disease in conifer forests. We found that isolates of Trichoderma spp. obtained from burned and non-burned soils beneath a ponderosa pine forest in central Oregon were strongly antagonistic to Armillaria ostoyae in culture. Filter-sterilized filtrates of these Trichoderma isolates inhibited rhizomorph formation by A. ostoyae and reduced its growth on solid media. Isolates of Trichoderma represented about 20 percent of the fungi recovered from burned and non-burned soils; however, the isolates obtained from burned soils were more antagonistic to A. ostoyae than were the isolates obtained from non-burned soils. There was also a difference in the species of Trichoderma recovered from burned and non-burned soils. JF - Northwest Science AU - Reaves, J L AU - Shaw, CG III AU - Mayfield, JE AD - USDA For. Serv., Pac. Northwest Res. Stn., For. Sci. Lab., Corvallis, OR 97331, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 39 EP - 44 VL - 64 IS - 1 SN - 0029-344X, 0029-344X KW - Trichoderma KW - effects on KW - development KW - Ecology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - antagonism KW - Pinus KW - fires KW - Armillaria ostoyae KW - forests KW - burnt ground KW - soil KW - growth KW - K 03095:Soil KW - D 04623:Fungi KW - K 03010:Fungi KW - A 01045:Diseases & treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15775617?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Northwest+Science&rft.atitle=The+effect+of+Trichoderma+spp.+isolated+from+burned+and+non-burned+forest+soils+on+the+growth+and+development+of+Armillaria+ostoyae+in+culture.&rft.au=Reaves%2C+J+L%3BShaw%2C+CG+III%3BMayfield%2C+JE&rft.aulast=Reaves&rft.aufirst=J&rft.date=1990-01-01&rft.volume=64&rft.issue=1&rft.spage=39&rft.isbn=&rft.btitle=&rft.title=Northwest+Science&rft.issn=0029344X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Armillaria ostoyae; Pinus; growth; forests; soil; fires; antagonism; burnt ground ER - TY - JOUR T1 - A technique for the quantitative sensory evaluation of farm-raised catfish. AN - 15775323; 2378173 AB - A descriptive analysis panel was trained to use a refined lexicon of flavor descriptors to evaluate farm-raised catfish (Ictalurus punctatus ) flavor using a referenced intensity rating scale. To reduce variance due to within sample variability, a procedure using Blended Individual Fish Samples (BIFS) was developed. The reproducibility of the panel performance, utility of the BIFS and the sensitivity of the method to discriminate differences in fish was demonstrated in three experiments. JF - Journal of Sensory Studies AU - Johnsen, P B AU - Kelly, CA AD - USDA Agric. Res. Serv., South. Reg. Res. Cent., P.O. Box 19687, New Orleans, LA 70179, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 189 EP - 199 VL - 4 IS - 3 SN - 0887-8250, 0887-8250 KW - aquaculture products KW - flavor KW - methodology KW - organoleptic evaluation KW - taste panel evaluation KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA Aquaculture Abstracts; Chemoreception Abstracts; ASFA Marine Biotechnology Abstracts KW - fishery products KW - Freshwater KW - taste KW - Ictalurus punctatus KW - aquaculture KW - quality control KW - organoleptic properties KW - R 18121:Flavor & aroma KW - Q3 08582:Fish culture KW - Q4 27470:Food Products KW - Q1 08627:Food quality and standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15775323?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Sensory+Studies&rft.atitle=A+technique+for+the+quantitative+sensory+evaluation+of+farm-raised+catfish.&rft.au=Johnsen%2C+P+B%3BKelly%2C+CA&rft.aulast=Johnsen&rft.aufirst=P&rft.date=1990-01-01&rft.volume=4&rft.issue=3&rft.spage=189&rft.isbn=&rft.btitle=&rft.title=Journal+of+Sensory+Studies&rft.issn=08878250&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - aquaculture products; fishery products; aquaculture; quality control; taste; organoleptic properties; flavor; organoleptic evaluation; taste panel evaluation; Ictalurus punctatus; Freshwater ER - TY - JOUR T1 - A new peptide in the FMRFamide family isolated from the CNS of the hawkmoth, Manduca sexta . AN - 15774746; 2387184 AB - We have purified a FMRFamide-like peptide from extracts of brain-subesophageal ganglion of the moth, Manduca sexta . The purification was monitored with a new, competitive ELISA, and accomplished with ion exchange and reverse-phase HPLC. The amino acid sequence of the peptide is < Glu-Asp-Val-Val-His-Ser-Phe-Leu-Arg-Phe-amide (pEDVVHSFLRF-NH sub(2)). In a separate purification, an identical peptide was isolated from extracts of brain-associated neurohemal structures. We have named this peptide Manduca)FLRFamide, to indicate its homology with other members of the "FMRFamide" family. In bioassays, chemically synthesized peptide increased the force of neurally evoked contractions in the major power-producing flight muscles, the dorsal longitudinal muscles. JF - Peptides AU - Kingan, T G AU - Teplow, D B AU - Phillips, J M AU - Riehm, J P AU - Rao, K R AU - Hildebrand, J G AU - Homberg, U AU - Kammer, A E AU - Jardine, I AU - Griffin, PR AD - USDA, ARS, Insect Chem. Ecol. Lab., BARC-East, Build. 402, Beltsville, MD 20705, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 849 EP - 856 VL - 11 IS - 4 SN - 0196-9781, 0196-9781 KW - FMRFamide KW - Lepidoptera KW - Manduca sexta KW - Sphingidae KW - amino acid sequence KW - behaviour KW - central nervous system KW - flight KW - isolation KW - neuropeptides KW - new KW - role KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Entomology Abstracts; CSA Neurosciences Abstracts KW - Z 05174:Hormones KW - N3 11080:Neuroendocrinology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15774746?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Peptides&rft.atitle=A+new+peptide+in+the+FMRFamide+family+isolated+from+the+CNS+of+the+hawkmoth%2C+Manduca+sexta+.&rft.au=Kingan%2C+T+G%3BTeplow%2C+D+B%3BPhillips%2C+J+M%3BRiehm%2C+J+P%3BRao%2C+K+R%3BHildebrand%2C+J+G%3BHomberg%2C+U%3BKammer%2C+A+E%3BJardine%2C+I%3BGriffin%2C+PR&rft.aulast=Kingan&rft.aufirst=T&rft.date=1990-01-01&rft.volume=11&rft.issue=4&rft.spage=849&rft.isbn=&rft.btitle=&rft.title=Peptides&rft.issn=01969781&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - flight; central nervous system ER - TY - JOUR T1 - Development of pheromone lure for monitoring field populations of Eoreuma loftini (Lepidoptera: Pyralidae). AN - 15774487; 2382877 AB - Formulations of Mexican rice borer (MRB) pheromone components were more effective in capturing males in fields of sugarcane when dispensed from rubber septa than when evaporated from four other substrates. Concentrations of 0.63-10.0 mg of total pheromone per lure were effective over a 112-day period when formulated in rubber septa in a ratio of 8:1:1.3 of (Z)-13-octadecenyl acetate, (Z)-11-hexadecenyl acetate, and (Z)-13-octadecenal, respectively. Component ratios of 4:1:1.3 anbd 8:1:1.3 were equally effective in capturing male MRB, but efficacy decreased with higher relative concentrations of (Z)-13-octadecenyl acetate. JF - Journal of Chemical Ecology AU - Shaver, T N AU - Brown, HE AU - Hendricks, DE AD - USDA, ARS, Pest Manage. Res. Unit, College Stn., TX 77840, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 2393 EP - 2400 VL - 16 IS - 8 SN - 0098-0331, 0098-0331 KW - pheromone traps KW - Chemoreception Abstracts; Ecology Abstracts; Entomology Abstracts KW - Pyralidae KW - monitoring KW - Eoreuma loftini KW - Lepidoptera KW - attractancy KW - Z 05205:Populations & general ecology KW - D 04659:Insects KW - Z 05207:Agricultural & general applied entomology KW - D 04002:Surveying and remote sensing KW - R 18051:Reproductive behavior KW - Z 05156:Techniques UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15774487?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Development+of+pheromone+lure+for+monitoring+field+populations+of+Eoreuma+loftini+%28Lepidoptera%3A+Pyralidae%29.&rft.au=Shaver%2C+T+N%3BBrown%2C+HE%3BHendricks%2C+DE&rft.aulast=Shaver&rft.aufirst=T&rft.date=1990-01-01&rft.volume=16&rft.issue=8&rft.spage=2393&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Eoreuma loftini; Lepidoptera; Pyralidae; monitoring; attractancy ER - TY - JOUR T1 - Alteration of Talaromyces flavus heat resistance by growth conditions and heating medium composition. AN - 15767790; 2376195 AB - A strain of Talaromyces flavus var. macrosporus (NRRL 13641) was isolated from spoiled fruit drink and identified. It has a heat resistance (l/k) (death rate constant or decimal reduction time) of 191 min at 80 degree C and 6 min at 90 degree C with a calculated z of 6.7 degree C. Several strains of T. flavus were tested to determine the effects on heat resistance of environmental conditions such as pH, organic acids, brix, and type of medium. Heat resistance increased with increased brix in the heating medium. Growth on solid medium compared with liquid medium resulted in greater heat resistance. Growth at 20 degree C and 35 degree C produced ascospores with higher heat resistance than growth at 25 degree C while those produced at 30 degree C had intermediate heat resistance. Five cultures differed significantly in heat resistance. JF - Journal of Food Science AU - King, AD Jr AU - Whitehand, L C AD - USDA, West. Reg. Res. Cent., 800 Buchanan St., Albany, CA 94710. USA Y1 - 1990 PY - 1990 DA - 1990 SP - 830 EP - 832 VL - 55 IS - 3 SN - 0022-1147, 0022-1147 KW - heat KW - resistance KW - alteration KW - growth conditions KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - fruit juices KW - juices KW - Talaromyces flavus KW - A 01019:Sterilization, preservation & packaging KW - K 03063:Effects of physical & chemical factors UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15767790?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Food+Science&rft.atitle=Alteration+of+Talaromyces+flavus+heat+resistance+by+growth+conditions+and+heating+medium+composition.&rft.au=King%2C+AD+Jr%3BWhitehand%2C+L+C&rft.aulast=King&rft.aufirst=AD&rft.date=1990-01-01&rft.volume=55&rft.issue=3&rft.spage=830&rft.isbn=&rft.btitle=&rft.title=Journal+of+Food+Science&rft.issn=00221147&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Talaromyces flavus; juices; fruit juices ER - TY - JOUR T1 - Atrazine and bromide movement through a silt loam soil. AN - 15766367; 2377492 AB - This study was conducted to determine the pattern(s) of movement of Br and atrazine through a field soil as affected by plow- and conservation-till corn (Zea mays L.), under severe leaching conditions. The soil surface inside double-ring infiltrometers was sprayed with chemicals, 1 wk later 10 cm of solution was applied under ponded flow conditions, and soil cores removed the next day for chemical analysis. The distribution patterns of Br and atrazine with soil depth were quite similar, with the largest proportion of the chemical observed in the surface horizon, yet all cores showed some movement of chemicals to the deepest sampling depth (90 cm). However, on average <50% of the applied water, Br, and atrazine could be found. JF - Journal of Environmental Quality AU - Starr, J L AU - Glotfelty, DE AD - USDA-ARS, Nat. Resour. Inst., Environ. Chem. Lab., Beltsville, MD 20705, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 552 EP - 558 VL - 19 IS - 3 SN - 0047-2425, 0047-2425 KW - atrazine KW - bromides KW - soils KW - groundwater contamination KW - Pollution Abstracts KW - Zea mays KW - leachates KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15766367?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Atrazine+and+bromide+movement+through+a+silt+loam+soil.&rft.au=Starr%2C+J+L%3BGlotfelty%2C+DE&rft.aulast=Starr&rft.aufirst=J&rft.date=1990-01-01&rft.volume=19&rft.issue=3&rft.spage=552&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Zea mays; leachates ER - TY - JOUR T1 - Use of sterile releases in an IPM program for control of Hypoderma lineatum and H. bovis (Diptera: Oestridae): A pilot test. AN - 15760847; 2382845 AB - A joint Canadian-U.S. pilot test study was conducted for 4 yr on about 3,800 km super(2) on the Montana-Alberta border to determine the effect of sterile male releases on Hypoderma lineatum) (Villers) and H. bovis (L.) populations remaining after initial chemical treatments. Chemical treatments initially reduced populations, making sterile male releases more efficient. Insect material for release was obtained from yearling animals held in confinement, an expensive, labor-intensive method of production. Sterile males of H. lineatum were released in one-half of the study area and sterile males of H. bovis were released in the other half. The unsterilized species in each half served as a control. Although the number of sterile males released was limited (265-462/yr), each species was eliminated in its respective release area, whereas the control species was not. JF - Journal of Medical Entomology AU - Kunz, SE AU - Scholl, P J AU - Colwell, D D AU - Weintraub, J AD - Knipling-Bushland U.S. Livestock Insects Lab., USDA-ARS, SPA, P.O. Box 232, Kerrville, TX 78029, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 523 EP - 529 VL - 27 IS - 4 SN - 0022-2585, 0022-2585 KW - sterile-release KW - integrated pest management KW - cattle KW - Diptera KW - Hypoderma bovis KW - Hypoderma lineatum KW - Oestridae KW - biological control KW - insecticides KW - integrated control KW - pest control KW - Biotechnology and Bioengineering Abstracts; Ecology Abstracts; Entomology Abstracts KW - North America KW - Z 05206:Medical & veterinary entomology KW - W 30513:Pest control KW - D 04710:Control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15760847?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Medical+Entomology&rft.atitle=Use+of+sterile+releases+in+an+IPM+program+for+control+of+Hypoderma+lineatum+and+H.+bovis+%28Diptera%3A+Oestridae%29%3A+A+pilot+test.&rft.au=Kunz%2C+SE%3BScholl%2C+P+J%3BColwell%2C+D+D%3BWeintraub%2C+J&rft.aulast=Kunz&rft.aufirst=SE&rft.date=1990-01-01&rft.volume=27&rft.issue=4&rft.spage=523&rft.isbn=&rft.btitle=&rft.title=Journal+of+Medical+Entomology&rft.issn=00222585&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Hypoderma lineatum; Hypoderma bovis; Diptera; Oestridae; North America; biological control; insecticides; pest control; integrated control ER - TY - JOUR T1 - Kinetics of mercuric chloride retention by soils. AN - 15759155; 2376683 AB - A nonlinear multireaction model was used to describe kinetic data for HgCl sub(2) retention by five soils. A three-parameter version of the model consisting of a reversible nonlinear (nth order, n < 1) reaction and an irreversible first-order reaction was capable of describing HgCl sub(2) retention data for Cecil and Windsor soils at all initial solution Hg concentrations, and data for Norwood, (finesilty, mixed, thermic, Typic Udifluvent), Olivier, and Sharkey soils at initial solution Hg concentrations below 5 mg/L. A five-parameter version of the model, with an added reversible nonlinear reaction, provided a more accurate description of the retention data for the Norwood, Olivier, and Sharkey soils at initial solution Hg concentrations above 5 mg/L. JF - Journal of Environmental Quality AU - Amacher, M C AU - Selim, H M AU - Iskandar, I K AD - For. Sci. Lab., Intermt. Res. Stn., USDA For. Serv., Logan, UT 84321, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 382 EP - 388 VL - 19 IS - 3 SN - 0047-2425, 0047-2425 KW - mercuric chloride KW - soils KW - Health & Safety Science Abstracts; Pollution Abstracts KW - kinetics KW - P 5000:LAND POLLUTION KW - H SE3.26:MERCURY POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15759155?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Kinetics+of+mercuric+chloride+retention+by+soils.&rft.au=Amacher%2C+M+C%3BSelim%2C+H+M%3BIskandar%2C+I+K&rft.aulast=Amacher&rft.aufirst=M&rft.date=1990-01-01&rft.volume=19&rft.issue=3&rft.spage=382&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - kinetics ER - TY - JOUR T1 - Limnology, vegetation, and classification of coast range slump-formed ponds. AN - 15758612; 2376793 AB - Slump-formed ponds afford scarce riparian and aquatic habitats in north coastal California. This study provides information and a classification system for their management. Fourteen slump-formed ponds were studied in the Coast Range of northwestern California during 1975-1976 for limnological and vegetation characteristics. The ponds averaged 2.4 m maximum depth and 0.56 ha surface area. Subsurface contours and hypsographic curves suggested various stages of basin fill-in. Water quality (dissolved oxygen and temperature) and the presence of algae species (Nygaard's trophic index) provided evidence that the ponds were typically mesotrophic to eutrophic. Algal, submergent, emergent, and riparian vascular plant species were identified. Ponds were classified based on water permanence (ephemeral, astatic, and stable) and successional stage (degree of basin fill-in). Pond classes corresponded to unique combinations of limnological and vegetation characteristics. The pond classification system is useful for guiding management activities to rehabilitate, maintain, and enhance riparian and aquatic habitats associated with the ponds. JF - Northwest Science AU - Marcot, B G AD - USDA For. Serv., Six Rivers Natl. For., 507 F St., Eureka, CA 95521, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 55 EP - 58 VL - 64 IS - 1 SN - 0029-344X, 0029-344X KW - USA, California, Coast Range Mts. KW - limnology KW - vegetation KW - vegetation cover KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - ponds KW - classification KW - Freshwater KW - D 04310:Freshwater KW - Q1 08463:Habitat community studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15758612?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Northwest+Science&rft.atitle=Limnology%2C+vegetation%2C+and+classification+of+coast+range+slump-formed+ponds.&rft.au=Marcot%2C+B+G&rft.aulast=Marcot&rft.aufirst=B&rft.date=1990-01-01&rft.volume=64&rft.issue=1&rft.spage=55&rft.isbn=&rft.btitle=&rft.title=Northwest+Science&rft.issn=0029344X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - ponds; classification; vegetation cover; vegetation; Freshwater ER - TY - JOUR T1 - Amylo-oligosaccharide formation from B. stearothermophilus alpha -amylase action on starches. AN - 15754732; 2375422 AB - The action of alpha -amylase from Bacillus stearothermophilus on starches is distinguished by early dominant quantities of maltohexaose (DP sub(6)), followed by its erosion and increases in amylo-oligosaccharides with various degrees of polymerization (DP): maltose (DP sub(2)), maltotriose (DP sub(3)) and maltopentose (DP sub(5)). Amylolysis of the starches at high substrate concentrations and elevated temperature (95 degree C) gave yields of 11-31% maltohexaose in the hydrolysate compositions. The alpha -amylolysis of jet-cooked ordinary, waxy and high-amylose corn starches is greater with the high-amylose starch than with the starches containing increasing quantities of amylopectin. Starch derivatives with hydroxypropyl groups greatly reduced amylolysis, but these groups did not alter the action patterns. JF - Journal of Food Science AU - Inglett, GE AD - USDA, Agric. Res. Serv., Northern Reg. Res. Cent., 1815 N. University St., Peoria, IL 61604, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 560 EP - 567 VL - 55 IS - 2 SN - 0022-1147, 0022-1147 KW - Bacillus stearothermophilus KW - oligosaccharides KW - temperature KW - starch KW - Microbiology Abstracts B: Bacteriology KW - amylolytic enzymes KW - pH KW - J 02730:Carbohydrates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15754732?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Food+Science&rft.atitle=Amylo-oligosaccharide+formation+from+B.+stearothermophilus+alpha+-amylase+action+on+starches.&rft.au=Inglett%2C+GE&rft.aulast=Inglett&rft.aufirst=GE&rft.date=1990-01-01&rft.volume=55&rft.issue=2&rft.spage=560&rft.isbn=&rft.btitle=&rft.title=Journal+of+Food+Science&rft.issn=00221147&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - amylolytic enzymes; pH ER - TY - JOUR T1 - Ingestion of tall larkspur by cattle. Separating effects of flavor from postingestive consequences. AN - 15753506; 2354140 AB - Tall larkspur (Delphinium spp.) is a palatable but toxic poisonous plant in the western United State. We examined the influences of food flavor and postingestive consequences on consumption of a 33% larkspur pellet during 30-min feeding periods for five days using esophageally fistulated cattle that were sham-fed larkspur pellets. Consumption by the sham-fed group was compared to a control group fed alfalfa pellets, and larkspur group fed only larkspur pellets. Sham-fed cattle did not decrease feed consumption compared to controls, indicating no significant difference in food flavor. The larkspur group decreased feed consumption by 41% relative to control and by 31% relative to sham-fed animals. This reduction in feed consumption indicates the adverse postingestive consequences of tall larkspur ingestion, as the larkspur group apparently developed a conditioned taste aversion to the larkspur pellet. JF - Journal of Chemical Ecology AU - Pfister, JA AU - Provenza, F D AU - Manners, G D AD - USDA-ARS Poison Plant Lab., Utah State Univ., Logan, UT 84322, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 1697 EP - 1706 VL - 16 IS - 5 SN - 0098-0331, 0098-0331 KW - plants KW - Delphinium barbeyi KW - poisonous KW - feeding behaviour KW - alkaloids KW - cattle KW - Animal Behavior Abstracts; Ecology Abstracts; Chemoreception Abstracts KW - palatability KW - taste aversion learning KW - Y 25697:Mammals (excluding primates) KW - D 04672:Mammals KW - R 18059:Feeding UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15753506?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Ingestion+of+tall+larkspur+by+cattle.+Separating+effects+of+flavor+from+postingestive+consequences.&rft.au=Pfister%2C+JA%3BProvenza%2C+F+D%3BManners%2C+G+D&rft.aulast=Pfister&rft.aufirst=JA&rft.date=1990-01-01&rft.volume=16&rft.issue=5&rft.spage=1697&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - palatability; taste aversion learning ER - TY - JOUR T1 - Precipitation nutrient inputs in semiarid environments. AN - 15752174; 2364032 AB - Seasonal and spatial variations in precipitation nutrient inputs were suggested by differences in storm type and air mass origin into southeastern Arizona. Wet precipitation NO sub(3)-N, NH sub(4)-N, PO sub(4)-P, and K inputs were collected at seven sites to determine seasonal and spatial variations in nutrient inputs. Total nutrient inputs and concentrations in summer precipitation were significantly greater than in winter precipitation. Higher summer total inputs and concentrations were attributed to storm type and air mass origin rather than precipitation amount, as summer precipitation accounted for 56% of the precipitation and 79, 69, 66, and 73% of the NO sub(3)-N, NH sub(4)-N, PO sub(4)-P, and K, respectively. Spatial variability in nutrient inputs was limited to specific nutrients, seasons, and sites and attributed to precipitation variability and localized sources. Generally, the air masses and storm types that produced seasonal differences in nutrient inputs and concentrations affected all sites uniformly. JF - Journal of Environmental Quality AU - Emmerich, W E AD - USDA-ARS, Aridland Watershed Manage. Res. Unit, 2000 E. Allen Rd., Tucson, AZ 85719, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 621 EP - 624 VL - 19 IS - 3 SN - 0047-2425, 0047-2425 KW - nutrient sources KW - seasonal variations KW - Ecology Abstracts KW - semiarid environments KW - precipitation KW - D 04130:Arid zones UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15752174?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Precipitation+nutrient+inputs+in+semiarid+environments.&rft.au=Emmerich%2C+W+E&rft.aulast=Emmerich&rft.aufirst=W&rft.date=1990-01-01&rft.volume=19&rft.issue=3&rft.spage=621&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - precipitation; semiarid environments ER - TY - JOUR T1 - Computer simulation of management strategies for American dog ticks (Acari: Ixodidae) and Rocky Mountain spotted fever. AN - 15751828; 2358313 AB - Computer models were developed to simulate the effects of management technologies on populations of the American dog tick, Dermacentor variabilis (Say), principal vector of Rocky Mountain spotted fever (RMSF) in eastern North America. The technologies modeled were area-wide acaricide application, acaricide-food-baited tubes for self-treatment by small mammals, dipping of dogs in acaricides, acaricide-impregnated plastic dog collars, reduction of small mammal host populations (host management), and removal of vegetation that protects free-living tick stages (vegetative management). Submodels for each of these technologies were incorporated into a model (ADTSIM) for the population dynamics of the tick and RMSF transmission. Comparisons of simulated and observed data were used to verify reasonable accuracy of the submodels. These strategies reduced numbers of human cases of RMSF 90% or more by year 20 by maintaining tick densities between 100 and 252 unfed adults/ha. JF - Journal of Medical Entomology AU - Haile, D G AU - Mount, G A AU - Cooksey, L M AD - Insects Affecting Man and Anim. Res. Lab., USDA-ARS, Gainesville, FL 32604, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 686 EP - 696 VL - 27 IS - 4 SN - 0022-2585, 0022-2585 KW - Dermacentor variabilis KW - populations KW - Microbiology Abstracts B: Bacteriology; Entomology Abstracts KW - Ixodidae KW - mathematical models KW - vectors KW - Rocky Mountain spotted fever KW - Acari KW - management KW - J 02855:Human Bacteriology: Others KW - J 02870:Invertebrate bacteriology KW - Z 05206:Medical & veterinary entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15751828?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Medical+Entomology&rft.atitle=Computer+simulation+of+management+strategies+for+American+dog+ticks+%28Acari%3A+Ixodidae%29+and+Rocky+Mountain+spotted+fever.&rft.au=Haile%2C+D+G%3BMount%2C+G+A%3BCooksey%2C+L+M&rft.aulast=Haile&rft.aufirst=D&rft.date=1990-01-01&rft.volume=27&rft.issue=4&rft.spage=686&rft.isbn=&rft.btitle=&rft.title=Journal+of+Medical+Entomology&rft.issn=00222585&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Ixodidae; Acari; Rocky Mountain spotted fever; mathematical models; management; vectors ER - TY - JOUR T1 - Disappearance and recoverability of songbird carcasses in fruit orchards. AN - 15745418; 2357254 AB - Songbird mortality due to agricultural pesticides is often assessed by searching treated areas for carcasses. However, carcass removal by scavengers and the failure of searchers to find carcasses that are present may bias mortality estimates. We conducted two studies in 1987 and 1988 in New York to evaluate such biases at the time of fruit maturation in cherry and apple orchards. In the first study, mean survival times for carcasses were 8.2 d in cherry and 10.4 d in apple orchards. In the second study, searchers located an average of 75% of carcasses placed in orchards. Our results suggest that careful searches conducted within 2 d of application of pesticides in orchards should suffice for detecting significant songbird mortality. However, variable survival times among orchards demonstrate that studies to assess songbird mortality by searching for carcasses should also measure disappearance rates of carcasses. JF - Journal of Field Ornithology AU - Tobin, ME AU - Dolbeer, R A AD - USDA/APHIS/S&T, Denver Wildl. Res. Cent., P.O. Box 10880, Hilo, HI 96721, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 237 EP - 242 VL - 61 IS - 2 SN - 0273-8570, 0273-8570 KW - mortality KW - Ecology Abstracts KW - Aves KW - orchards KW - carcasses KW - D 04671:Birds KW - D 04001:Methodology - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15745418?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Field+Ornithology&rft.atitle=Disappearance+and+recoverability+of+songbird+carcasses+in+fruit+orchards.&rft.au=Tobin%2C+ME%3BDolbeer%2C+R+A&rft.aulast=Tobin&rft.aufirst=ME&rft.date=1990-01-01&rft.volume=61&rft.issue=2&rft.spage=237&rft.isbn=&rft.btitle=&rft.title=Journal+of+Field+Ornithology&rft.issn=02738570&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; carcasses; orchards ER - TY - JOUR T1 - Grazing-mediated differentiation in Agropyron smithii : Evidence from populations with different grazing histories. AN - 15744088; 2360528 AB - Agropyron smithii Rydb. (western wheatgrass) was collected from a heavily grazed area colonized by black-tailed prairie dogs (Cynomys ludovicianus ) and from an adjacent lightly grazed, noncolonized site (ON- and OFF-colony populations, respectively). Biomass yield and distribution of biomass among components of plants of the two populations were not significantly altered by N-addition treatments, indicating that plants were N saturated at all N-additions employed. Defoliation produced a similar relative reduction in cumulative biomass yield of plants of the two populations. Proportional loss of biomass to defoliation was greater in OFF-colony individuals, which had fewer and larger tillers and greater relative investment of biomass in aboveground components under defoliation, than in ON-colony plants. We suggest that rapid production of small tillers contributes to the prevalence of ON-colony growth forms of A. smithii under intensive grazing. JF - Oikos AU - Polley, H W AU - Detling, J K AD - USDA, ARS, Grassland, Soil and Water Res. Lab., 808 E. Blackland Rd., Temple, TX 76502, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 326 EP - 323 VL - 57 IS - 3 SN - 0030-1299, 0030-1299 KW - grazing KW - Ecology Abstracts KW - biomass KW - Agropyron smithii KW - D 04636:Grasses UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15744088?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Oikos&rft.atitle=Grazing-mediated+differentiation+in+Agropyron+smithii+%3A+Evidence+from+populations+with+different+grazing+histories.&rft.au=Polley%2C+H+W%3BDetling%2C+J+K&rft.aulast=Polley&rft.aufirst=H&rft.date=1990-01-01&rft.volume=57&rft.issue=3&rft.spage=326&rft.isbn=&rft.btitle=&rft.title=Oikos&rft.issn=00301299&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Agropyron smithii; biomass ER - TY - JOUR T1 - Forest habitat types of the South Warner Mountains, Modoc County, California. AN - 15743838; 2360678 AB - We describe the forest habitat types of the South Warner Mountains in northeastern California using floristic composition and associated environmental variables from 261 releves. Floristic data were analyzed with an agglomerative polythetic hierarchical cluster analysis. Results indicate four series (Cercocarpus ledifolius, Populus tremuloides, Abies concolor , and Pinus albicaulis ), containing nine habitat types and two phases. Environmental variables (elevation, aspect, slope, surface rock cover, and topographical position) were obtained with principal component analysis and a moisture equivalency index. These results indicate that forest habitat types occur along a complex elevation/soil/moisture gradient. The elevation, aspect, and topographic position were the best predictors of general pattern. Only distribution of Cercocarpus ledifolius and Populus tremuloides series appear to be edaphically controlled. JF - Madrono AU - Riegel, G M AU - Thornburgh, DA AU - Sawyer, JO AD - USDA Agric. Res. Serv., 920 Valley Rd., Reno, NV 89512, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 88 EP - 112 VL - 37 IS - 2 SN - 0024-9637, 0024-9637 KW - forests KW - USA, California, South Warner Mts. KW - Ecology Abstracts KW - community composition KW - D 04125:Temperate forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15743838?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Madrono&rft.atitle=Forest+habitat+types+of+the+South+Warner+Mountains%2C+Modoc+County%2C+California.&rft.au=Riegel%2C+G+M%3BThornburgh%2C+DA%3BSawyer%2C+JO&rft.aulast=Riegel&rft.aufirst=G&rft.date=1990-01-01&rft.volume=37&rft.issue=2&rft.spage=88&rft.isbn=&rft.btitle=&rft.title=Madrono&rft.issn=00249637&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - community composition ER - TY - JOUR T1 - Influence of organic sediment amendments on growth and tuber production by Potamogeton pectinatus L. AN - 15741433; 2352367 AB - Results from experiments with Potamogeton pectinatus grown in an artificial substrate amended with various combinations of peat and glucose or sucrose suggest that plant weight and the number and weight of tubers produced per plant increased significantly when plants were grown in sediment amended with peat. Contrary to expectations, the addition of labile organic components, glucose or sucrose, to the substrate (up to 15%, w/w) did not influence plant growth. Plants grown in sediment amended with peat had higher levels of tissue Fe. The weight of tubers produced per gram of non tuber tissue was not influenced by sediment properties. These results support the hypothesis that the mechanism by which sediment organic matter affects macrophyte growth is by altering sediment density. JF - Journal of freshwater ecology. La Crosse, WI AU - Spencer, D F AD - USDA/ARS Aquatic Weed Lab., Univ. California, Davis, CA 95616, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 255 EP - 263 VL - 5 IS - 3 SN - 0270-5060, 0270-5060 KW - glucose KW - growth KW - habitat improvement (fertilization) KW - iron KW - nutrient concentrations KW - sediment properties KW - tuber production KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - weight KW - Potamogeton pectinatus KW - aquatic plants KW - organic matter KW - Freshwater KW - reproduction KW - environmental effects KW - peat KW - D 04640:Other angiosperms KW - Q1 08422:Environmental effects KW - Q1 08224:Reproduction and development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15741433?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+freshwater+ecology.+La+Crosse%2C+WI&rft.atitle=Influence+of+organic+sediment+amendments+on+growth+and+tuber+production+by+Potamogeton+pectinatus+L.&rft.au=Spencer%2C+D+F&rft.aulast=Spencer&rft.aufirst=D&rft.date=1990-01-01&rft.volume=5&rft.issue=3&rft.spage=255&rft.isbn=&rft.btitle=&rft.title=Journal+of+freshwater+ecology.+La+Crosse%2C+WI&rft.issn=02705060&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - peat; habitat improvement (fertilization); weight; glucose; aquatic plants; organic matter; reproduction; sediment properties; environmental effects; iron; nutrient concentrations; Potamogeton pectinatus; Freshwater ER - TY - JOUR T1 - Influence of two mass-marking techniques on survival and flight behavior of Diabrotica virgifera virgifera (Coleoptera: Chrysomelidae). AN - 15737151; 2357318 AB - Two mass-marking techniques were evaluated in the laboratory to determine effects on survival and flight behavior of Diabrotica virgifera virgifera LeConte. The marking agents were an externally applied fluorescent powder (Day-Glo) and an internal oil soluble dye (Calico oil red) incorporated into an artificial adult diet. Neither technique had a significant influence on survival of 5-10-d-old or 20-25-d-old female or male beetles up to 10 d after marking. Based on tethered-flight assays, marking with fluorescent dust generally had no effect on trivial or sustained flight performance of 5-10-d-old and 20-25-d-old females or 15-d-old males. Beetles marked with the oil-soluble dye experienced reductions in trivial flight performance, including reductions in individual flight duration, frequency of flight, and total flight time in a 23-h period, for up to 2 d after marking. JF - Journal of Economic Entomology AU - Naranjo, SE AD - NortH. Grain Insects Res. Lab., USDA-ARS, Brookings, SD 57006, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 1360 EP - 1364 VL - 83 IS - 4 SN - 0022-0493, 0022-0493 KW - Diabrotica virgifera KW - Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - marking and tracking techniques KW - Coleoptera KW - survival KW - flight activity KW - Chrysomelidae KW - Z 05205:Populations & general ecology KW - D 04659:Insects KW - D 04002:Surveying and remote sensing KW - Y 25863:Insects KW - Z 05156:Techniques UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15737151?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Influence+of+two+mass-marking+techniques+on+survival+and+flight+behavior+of+Diabrotica+virgifera+virgifera+%28Coleoptera%3A+Chrysomelidae%29.&rft.au=Naranjo%2C+SE&rft.aulast=Naranjo&rft.aufirst=SE&rft.date=1990-01-01&rft.volume=83&rft.issue=4&rft.spage=1360&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Chrysomelidae; Coleoptera; marking and tracking techniques; survival; flight activity ER - TY - JOUR T1 - Biochemical activity of centipedegrass against fall armyworm larvae. AN - 15735978; 2359679 AB - Centipedegrass, Eremochloa ophiuroides (Munro) Hack, severely inhibits growth of the fall armyworm larva, Spodoptera frugiperda (J.E. Smith). Fresh centipedegrass extracts and extract fractions were deposited on Celufil, incorporated into meridic-based diets and bioassayed against neonate larvae of the fall armyworm in the laboratory. The methanol extract (F sub(1)) caused the greatest reduction in larval weight. When F sub(1) was partitioned between methylene chloride and water, the activity was transferred to the water-soluble fraction (F sub(5)), which, when further fractionated using preparative C-18 reverse-phase chromatography, yielded active F sub(7) and F sub(8) fractions. Gas chromatograph-mass spectrometry and high-pressure liquid chromatography (HPLC) showed F sub(7) to be 95% caffeoylquinic acids with chlorogenic acid as the major constituent. HPLC analysis of F sub(8) revealed maysin (2"-O- alpha -L-rhamnosyl-6-C-(6-deoxy-xylo-hexos-4-ulosyl)luteolin) and other luteolin derivatives. JF - Journal of Chemical Ecology AU - Wiseman, B R AU - Gueldner, R C AU - Lynch, R E AU - Severson, R F AD - Insect Biol. and Popul. Manage. Res. Lab., USDA, Agric. Res. Serv., Tifton, GA 31793, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 2677 EP - 2690 VL - 16 IS - 9 SN - 0098-0331, 0098-0331 KW - Eremochloa ophiuroides KW - Ecology Abstracts; Entomology Abstracts KW - pest resistance KW - Spodoptera frugiperda KW - Noctuidae KW - Lepidoptera KW - Z 05207:Agricultural & general applied entomology KW - D 04636:Grasses UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15735978?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Biochemical+activity+of+centipedegrass+against+fall+armyworm+larvae.&rft.au=Wiseman%2C+B+R%3BGueldner%2C+R+C%3BLynch%2C+R+E%3BSeverson%2C+R+F&rft.aulast=Wiseman&rft.aufirst=B&rft.date=1990-01-01&rft.volume=16&rft.issue=9&rft.spage=2677&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Spodoptera frugiperda; Lepidoptera; Noctuidae; pest resistance ER - TY - JOUR T1 - Metabolism of the glutathione conjugate of propachlor by in situ perfused kidneys and livers of rats. AN - 15735004; 2354336 AB - (1- super(14)C)Propachlor-GSH was perfused at 0 multiplied by 34, 3 multiplied by 4 and 34 mu mol/h through the portal vein or the right renal artery of anaesthetized rats with biliary and ureteral cannulas. Urine was the predominant route for elimination of the super(14)C regardless of the route of perfusion. Mercapturic acid conjugates were found to be the end-products of metabolism of the super(14)C-propachlor-GSH by rat kidneys and liver, indicating that all enzymes necessary for the catabolism of GSH conjugates to mercapturates were present in each of these tissues. Perfusion of super(14)C-propachlor-GSH at 34 mu mol/h appeared to exceed the metabolic capacity of both liver and kidneys for this substrate. At this dose, parent compound was detected in the bile of portally perfused rats, and the amounts of super(14)C recovered in bile, kidneys and carcasses of renally perfused rats were greater than when smaller dosages were perfused. JF - Xenobiotica AU - Davison, K L AU - Bakke, JE AU - Larsen, G L AD - USDA, ARS, Biosci. Res. Lab., Fargo, ND 58105, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 375 EP - 383 VL - 20 IS - 4 SN - 0049-8254, 0049-8254 KW - propachlor KW - conjugates KW - metabolism KW - glutathione KW - rats KW - Toxicology Abstracts KW - liver KW - kidney KW - X 24133:Metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15735004?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Xenobiotica&rft.atitle=Metabolism+of+the+glutathione+conjugate+of+propachlor+by+in+situ+perfused+kidneys+and+livers+of+rats.&rft.au=Davison%2C+K+L%3BBakke%2C+JE%3BLarsen%2C+G+L&rft.aulast=Davison&rft.aufirst=K&rft.date=1990-01-01&rft.volume=20&rft.issue=4&rft.spage=375&rft.isbn=&rft.btitle=&rft.title=Xenobiotica&rft.issn=00498254&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - kidney; liver ER - TY - JOUR T1 - Comparative survival and demographic statistics for wild oriental fruit fly, Mediterranean fruit fly, and melon fly (Diptera: Tephritidae) on papaya. AN - 15733270; 2356442 AB - Oriental fruit fly,, Dacus dorsalis Hendel; melon fly, Dacus cucurbitae Coquillett; and Mediterranean fruit fly, Ceratitis capitata (Wiedemann) were reared from hosts collected within 40 km of papaya, Carica papaya L., orchards. Survivorship and demographic statistics were compared for experimental F sub(1) populations established on papaya fruit under controlled laboratory conditions. Results are discussed with respect to development of population management strategies in papaya orchards in Hawaii and eradication of fruit flies accidentally introduced into the U.S. mainland. JF - Journal of Economic Entomology AU - Vargas, R I AU - Carey, J R AD - Trop. Fruit and Veg. Res. Lab., USDA-ARS, Honolulu, HI 96804, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 1344 EP - 1349 VL - 83 IS - 4 SN - 0022-0493, 0022-0493 KW - Dacus dorsalis KW - Ecology Abstracts; Entomology Abstracts KW - demography KW - Ceratitis capitata KW - Carica papaya KW - Dacus cucurbitae KW - Tephritidae KW - survival KW - Diptera KW - Z 05205:Populations & general ecology KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15733270?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Comparative+survival+and+demographic+statistics+for+wild+oriental+fruit+fly%2C+Mediterranean+fruit+fly%2C+and+melon+fly+%28Diptera%3A+Tephritidae%29+on+papaya.&rft.au=Vargas%2C+R+I%3BCarey%2C+J+R&rft.aulast=Vargas&rft.aufirst=R&rft.date=1990-01-01&rft.volume=83&rft.issue=4&rft.spage=1344&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Dacus cucurbitae; Ceratitis capitata; Carica papaya; Tephritidae; Diptera; survival; demography ER - TY - JOUR T1 - Sorption behavior of s-triazine and thiocarbamate herbicides on soils. AN - 15732503; 2357148 AB - The soil-water partitioning coefficient (K sub(d)) is an important parameter for predicting the transport of herbicides in soils. We studied the sorption behavior of two s-triazines (atrazine (2-chloro-4-ethylamino-6-isopropylamino-1,3,5 triazine) and prometon (2,4-bis(isopropylamino)-6-methoxy-s-triazine)) and two thiocarbamates (EPTC (s-ethyl dipropylthiocarbamate) and triallate (s-(2,3,3-trichloroallyl)diisopropyl-thiocarbamate)) on two soils (Hanford sandy loam (HSL) (coarse-loamy, mixed, nonacid, thermic Typic Xerorthents) and Tujunga loamy sand (TLS) (mixed, thermic Typic Xeropsamments)) with varying organic matter content and soil texture. The K sub(d)-values were determined with a mass balance equilibrium batch technique in which the solution as well as the sorbed phase concentration was directly measured. JF - Journal of Environmental Quality AU - Singh, G AU - Spencer, W F AU - Cliath, M M AU - van Genuchten, MT AD - USDA-ARS, Dep. Soil and Environ. Sci., Univ. California, Riverside, CA 92521, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 520 EP - 525 VL - 19 IS - 3 SN - 0047-2425, 0047-2425 KW - soils KW - sorption KW - triazine KW - thiocarbamate KW - Health & Safety Science Abstracts; Pollution Abstracts KW - herbicides KW - P 5000:LAND POLLUTION KW - H SE5.22:HERBICIDES UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15732503?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Sorption+behavior+of+s-triazine+and+thiocarbamate+herbicides+on+soils.&rft.au=Singh%2C+G%3BSpencer%2C+W+F%3BCliath%2C+M+M%3Bvan+Genuchten%2C+MT&rft.aulast=Singh&rft.aufirst=G&rft.date=1990-01-01&rft.volume=19&rft.issue=3&rft.spage=520&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - herbicides ER - TY - JOUR T1 - Effects of horn fly and house fly (Diptera: Muscidae) larvae on the development of parasitic nematodes in bovine dung. AN - 15724988; 2341968 AB - Laboratory studies were conducted to determine the effects of horn fly, Haematobia irritans (L.), and house fly, Musca domestica L., larvae on the development of a mixed population of parasitic nematodes in compressed and crumbled bovine dung. Fresh dung (100 g per sample) from a single calf passing trichostrongyle type eggs was infested with 150 horn fly or 150 house fly eggs. After 14-15 d, more horn flies and house flies had emerged from the compressed dung than from the crumbled dung, but more third stage parasitic nematode larvae were recovered from the crumbled dung containing either fly species than from dung containing on flies. JF - Journal of Economic Entomology AU - Devaney, JA AU - Miller, D K AU - Craig, T M AD - Vet. Toxicol. and Entomol. Res. Lab., USDA-ARS, Route 5, Box 810, College Station, TX 77840, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 1446 EP - 1448 VL - 83 IS - 4 SN - 0022-0493, 0022-0493 KW - Haematobia irritans KW - effects on KW - Ecology Abstracts; Entomology Abstracts KW - Musca domestica KW - development KW - dung KW - interspecific relationships KW - Muscidae KW - Diptera KW - Nematoda KW - D 04656:Nematodes KW - D 04659:Insects KW - Z 05206:Medical & veterinary entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15724988?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Effects+of+horn+fly+and+house+fly+%28Diptera%3A+Muscidae%29+larvae+on+the+development+of+parasitic+nematodes+in+bovine+dung.&rft.au=Devaney%2C+JA%3BMiller%2C+D+K%3BCraig%2C+T+M&rft.aulast=Devaney&rft.aufirst=JA&rft.date=1990-01-01&rft.volume=83&rft.issue=4&rft.spage=1446&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Musca domestica; Diptera; Muscidae; Nematoda; dung; development; interspecific relationships ER - TY - JOUR T1 - Nucleotide sequence of pea cDNA encoding chloroplast carbonic anhydrase. AN - 15724042; 2347346 AB - A 1.3 kb cDNA was isolated from a pea (Pisum sativum L.) cDNA library by immunoscreening with rabbit antiserum to spinach carbonic anhydrase (E.C. 4.2.1.1). The 984 bp open reading frame contained the entire coding region of the mature chloroplast protein and its transit peptide. The identity of the protein is verified by the strong homology with carbonic anhydrase from spinach. There is little sequence homology with mammalian isozymes. The transit peptide, based on Edman degradation of the mature polypeptide, is 104 amino acids. This is longer than commonly found for nuclear-encoded chloroplast proteins. JF - Nucleic Acids Research AU - Roeske, CA AU - Ogren, W L AD - Agric. Res. Serv., USDA, 1102 S. Goodwin Ave., Urbana, IL 61801, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 3413 VL - 18 IS - 11 SN - 0305-1048, 0305-1048 KW - Pisum sativum KW - amino acid sequence KW - cDNA KW - carbonate dehydratase KW - genes KW - nucleotide sequence KW - predictions KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Genetics Abstracts; Biochemistry Abstracts 2: Nucleic Acids KW - N 14640:Structure & sequence KW - G 07355:GENERAL) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15724042?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nucleic+Acids+Research&rft.atitle=Nucleotide+sequence+of+pea+cDNA+encoding+chloroplast+carbonic+anhydrase.&rft.au=Roeske%2C+CA%3BOgren%2C+W+L&rft.aulast=Roeske&rft.aufirst=CA&rft.date=1990-01-01&rft.volume=18&rft.issue=11&rft.spage=3413&rft.isbn=&rft.btitle=&rft.title=Nucleic+Acids+Research&rft.issn=03051048&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - genes ER - TY - JOUR T1 - Purification and characterization of pea epicotyl beta -amylase. AN - 15715706; 2340312 AB - The most abundant beta -amylase (EC 3.2.1.2) in pea (Pisum sativum L.) was purified greater than 880-fold from epicotyls of etiolated germinating seedlings by anion exchange and gel filtration chromatography, glycogen precipitation, and preparative electrophoresis. The enzyme was determined to be a beta -amylase by end product analysis and by its inability to hydrolyze beta -limit dextrin and to release dye from starch azure. Pea beta -amylase is an approximate 55 to 57 kilodalton monomer with a pI of 4.35, a pH optimum of 6.0 (soluble starch substrate), an Arrhenius energy of activation of 6.28 kilocalories per mole, and a K sub(m) of 1.67 milligrams per milliliter (soluble starch). The enzyme is strongly inhibited by heavy metals, p-chloromercuriphenylsulfonic acid and N-ethylmaleimide, but much less strongly by iodoacetamide and iodoacetic acid, indicating cysteinyl sulfhydryls are not directly involved in catalysis. JF - Plant Physiology AU - Lizotte, P A AU - Henson, CA AU - Duke, SH AD - USDA Citrus and Subtrop. Prod. Lab., P.O. Box 1909, Winter Haven, FL 33883-1909, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 615 EP - 621 VL - 92 IS - 3 SN - 0032-0889, 0032-0889 KW - Pisum sativum KW - beta -amylase KW - characterization KW - purification KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15715706?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Plant+Physiology&rft.atitle=Purification+and+characterization+of+pea+epicotyl+beta+-amylase.&rft.au=Lizotte%2C+P+A%3BHenson%2C+CA%3BDuke%2C+SH&rft.aulast=Lizotte&rft.aufirst=P&rft.date=1990-01-01&rft.volume=92&rft.issue=3&rft.spage=615&rft.isbn=&rft.btitle=&rft.title=Plant+Physiology&rft.issn=00320889&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Field testing of pheromone disruption on preoutbreak populations of Douglas-fir tussock moth (Lepidoptera: Lymantriidae). AN - 15712768; 2332091 AB - Synthetic sex pheromone of Douglas-fir tussock moth, Orgyia pseudotsugata (McDunnough), was applied at 25 g/ha in hollow fibers to four plots of 16 ha each with preoutbreak level populations in north-central California. Treatment reduced the population level of the next generation by 74 and 68%, respectively, for egg mass and larval samples relative to controls. A key egg parasite, Telenomus californicus Ashmead, was not adversely affected by the treatment. JF - Journal of Economic Entomology AU - Sower, L L AU - Wenz, J M AU - Dahlsten, D L AU - Daterman, GE AD - USDA Forest Serv., Pacific Northwest Res. Stn., Corvallis, OR 97331, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 1487 EP - 1491 VL - 83 IS - 4 SN - 0022-0493, 0022-0493 KW - sex pheromone KW - synthetic KW - disruption KW - Abies concolor KW - Hymenoptera KW - Lepidoptera KW - Lymantriidae KW - Orgyia pseudotsugata KW - Pinus ponderosa KW - Scelionidae KW - Telenomus californicus KW - biological control KW - mating KW - nontarget organisms KW - Chemoreception Abstracts; Biotechnology and Bioengineering Abstracts; Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - USA, California KW - W 30513:Pest control KW - Z 05207:Agricultural & general applied entomology KW - D 04710:Control KW - R 18053:Pest control KW - Y 25883:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15712768?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Field+testing+of+pheromone+disruption+on+preoutbreak+populations+of+Douglas-fir+tussock+moth+%28Lepidoptera%3A+Lymantriidae%29.&rft.au=Sower%2C+L+L%3BWenz%2C+J+M%3BDahlsten%2C+D+L%3BDaterman%2C+GE&rft.aulast=Sower&rft.aufirst=L&rft.date=1990-01-01&rft.volume=83&rft.issue=4&rft.spage=1487&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Orgyia pseudotsugata; Telenomus californicus; Abies concolor; Pinus ponderosa; Lepidoptera; Lymantriidae; Hymenoptera; Scelionidae; USA, California; mating; biological control; nontarget organisms ER - TY - JOUR T1 - Effects of host age, host density and parent age on reproduction of the filth fly parasite Urolepis rufipes (Hymenoptera: Pteromalidae). AN - 15703498; 2332948 AB - Urolepis rufipes Ashmead, a pteromalid wasp, was recently discovered parasitizing house fly and stable fly pupae in eastern Nebraska dairies. Studies have been conducted on the biology of this parasite to evaluate its potential as a biological control agent of stable flies (Stomoxys calcitrans (L.)) and house flies (Musca domestica L.). House fly pupae were suitable as hosts for U. rufipes at all ages; however, significantly higher parasitism occurred on host pupae aged 96-120 h. Parasite-induced mortality (host mortality without progeny production) was higher than for other pteromalid parasites of filth flies under similar conditions. Parasitism increased with parasite--host ratio at 20 degree C; however, the opposite was noted at 30 degree C for parasite--host ratios ranging from 5:50 to 50:50. Fly eclosion decreased as parasite--host ratio increased at 20 degree C, and no host eclosion occurred at the highest parasite--host ratios (20:50 and 50:50) at 30 degree C. JF - Medical and Veterinary Entomology AU - Matthews, J R AU - Petersen, J J AD - Midwest Livest. Insects Res. Unit, ARS, USDA, Dep. Entomol., Univ. Nebraska, Lincoln, NE 68583-0816, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 255 EP - 260 VL - 4 IS - 3 SN - 0269-283X, 0269-283X KW - host-parasite interactions KW - Moscidae KW - Urolepis rufipes KW - Ecology Abstracts; Entomology Abstracts KW - Musca domestica KW - Stomoxys calcitrans KW - reproduction KW - USA, Nebraska KW - Hymenoptera KW - Diptera KW - Pteromalidae KW - D 04659:Insects KW - Z 05201:Parasitism: entomophagous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15703498?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Medical+and+Veterinary+Entomology&rft.atitle=Effects+of+host+age%2C+host+density+and+parent+age+on+reproduction+of+the+filth+fly+parasite+Urolepis+rufipes+%28Hymenoptera%3A+Pteromalidae%29.&rft.au=Matthews%2C+J+R%3BPetersen%2C+J+J&rft.aulast=Matthews&rft.aufirst=J&rft.date=1990-01-01&rft.volume=4&rft.issue=3&rft.spage=255&rft.isbn=&rft.btitle=&rft.title=Medical+and+Veterinary+Entomology&rft.issn=0269283X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Musca domestica; Stomoxys calcitrans; Diptera; Hymenoptera; Pteromalidae; USA, Nebraska; reproduction ER - TY - JOUR T1 - Free radical scavengers inhibit light-dependent degradation of the 32 kDa photosystem II reaction center protein. AN - 15691333; 2323913 AB - Involvement of oxygen-free radicals in the rapid, light-dependent degradation of the 32 kDa photosystem II reaction center protein was investigated. The free radical scavengers propylgallate and uric acid inhibited 32 kDa protein degradation without affecting linear electron flow. The involvement of singlet oxygen was excluded. Protection from degradation was also afforded under ultra-violet and far-red radiations. These data implicate free-radical damage as a common step in the degradation process, and emphasize the oxygen environment as a causative factor in destabilization of the 32 kDa protein. JF - Zeitschrift fuer Naturforschung. Section C AU - Sopory, S K AU - Greenberg, B M AU - Mehta, R A AU - Edelman, M AU - Mattoo, A K AD - Plant Mol. Biol. Lab., Build. 006, Rm. 118, USDA/ARS, Beltsville, MD 20705, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 412 EP - 417 VL - 45 IS - 5 SN - 0939-5075, 0939-5075 KW - Spirodela oligorrhiza KW - degradation KW - dependent KW - free radicals KW - inhibition KW - light KW - photosystem II KW - proteins KW - reaction centers KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15691333?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Zeitschrift+fuer+Naturforschung.+Section+C&rft.atitle=Free+radical+scavengers+inhibit+light-dependent+degradation+of+the+32+kDa+photosystem+II+reaction+center+protein.&rft.au=Sopory%2C+S+K%3BGreenberg%2C+B+M%3BMehta%2C+R+A%3BEdelman%2C+M%3BMattoo%2C+A+K&rft.aulast=Sopory&rft.aufirst=S&rft.date=1990-01-01&rft.volume=45&rft.issue=5&rft.spage=412&rft.isbn=&rft.btitle=&rft.title=Zeitschrift+fuer+Naturforschung.+Section+C&rft.issn=09395075&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Special issue: Herbicides active in the chlorplast. N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Measurement of very low density and low density lipoprotein apolipoprotein (Apo) B-100 and high density lipoprotein Apo A-I production in human subjects using deuterated leucine: Effect of fasting and feeding. AN - 15689779; 2323298 AB - Six normolipidemic male subjects, after an 8-h overnight fast, were given a bolus injection and then a 15-h constant intravenous infusion of (D sub(3))L-leucine. Subjects were studied in the fasted state and on a second occasion in the fed state (small, physiological meals were given every hour for 15 h). Apolipoproteins were isolated by preparative gradient gel electrophoresis from plasma lipoproteins separated by sequential ultracentrifugation. Incorporation of (D sub(3))L-leucine into apolipoproteins was monitored by negative ionization, gas chromatography-mass spectrometry. Production rates were determined by multiplying plasma apolipoprotein pool sizes by fractional production rates (calculated as the rate of isotopic enrichment (IE) of each protein as a fraction of IE achieved by VLDL (d < 1.006 g/ml) apo B-100 at plateau. JF - Journal of Clinical Investigation AU - Cohn, J S AU - Wagner, DA AU - Cohn, S D AU - Millar, J S AU - Schaefer, E J AD - Lipid Metab. Lab., USDA Hum. Nutr. Res. Cent. Aging Tufts Univ., 711 Washington St., Boston, MA 02111, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 804 EP - 811 VL - 85 IS - 3 SN - 0021-9738, 0021-9738 KW - apolipoprotein A-I KW - apolipoprotein B-100 KW - deuterated KW - effects on KW - fasting KW - feeding KW - leucine KW - man KW - measurements KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15689779?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Clinical+Investigation&rft.atitle=Measurement+of+very+low+density+and+low+density+lipoprotein+apolipoprotein+%28Apo%29+B-100+and+high+density+lipoprotein+Apo+A-I+production+in+human+subjects+using+deuterated+leucine%3A+Effect+of+fasting+and+feeding.&rft.au=Cohn%2C+J+S%3BWagner%2C+DA%3BCohn%2C+S+D%3BMillar%2C+J+S%3BSchaefer%2C+E+J&rft.aulast=Cohn&rft.aufirst=J&rft.date=1990-01-01&rft.volume=85&rft.issue=3&rft.spage=804&rft.isbn=&rft.btitle=&rft.title=Journal+of+Clinical+Investigation&rft.issn=00219738&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Thymidine and somatomedin-like activity of fetal pig sera: Effect of fetal decapitation. AN - 15685085; 2323220 AB - The effect of fetal decapitation on porcine serum thymidine and somatomedin activity was studied. Fetal decapitation, at 45 d of gestation, did not alter body weight when compared to controls at 110 d of gestation. JF - Growth, Development & Aging AU - McCusker, R H AU - Campion AD - Richard B. Russell Agric. Res. Cent., USDA, Agric. Res. Serv., P.O. Box 5677, Athens, GA 30613, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 31 EP - 38 VL - 54 IS - 1-2 SN - 0017-4793, 0017-4793 KW - activity KW - decapitation KW - effects on KW - fetuses KW - like KW - pigs KW - somatomedin KW - thymidine KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15685085?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Growth%2C+Development+%26+Aging&rft.atitle=Thymidine+and+somatomedin-like+activity+of+fetal+pig+sera%3A+Effect+of+fetal+decapitation.&rft.au=McCusker%2C+R+H%3BCampion&rft.aulast=McCusker&rft.aufirst=R&rft.date=1990-01-01&rft.volume=54&rft.issue=1-2&rft.spage=31&rft.isbn=&rft.btitle=&rft.title=Growth%2C+Development+%26+Aging&rft.issn=00174793&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Evaluation of D-pulegone as an avian repellent. AN - 15682728; 2313051 AB - Despite increasing demand, few chemical repellents are available for control of avian depredation and nuisance problems. New potential repellents may include flavoring that are used in human and animal foods and are offensive to birds. D-pulegone, a mint flavor, may represent a useful repellent; it is used at low (< 1%) concentrations as a food additive. I assessed the repellency of d-pulegone in 1-cup and 2-cup feeding tests with European starlings (Sturnus vulgaris ). Concentrations as low as 0.01% (g/g) significantly reduced consumption by birds in both 1-cup and 2-cup tests. Further evaluation of d-pulegone and similar compounds (e.g., mangone) appears warranted. JF - Journal of Wildlife Management AU - Mason, J R AD - U.S.D.A. c/o Monell Chemical Senses Cent., 3500 Market St., Philadelphia, PA 19104, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 130 EP - 135 VL - 54 IS - 1 SN - 0022-541X, 0022-541X KW - repellents KW - d-pulegone KW - Animal Behavior Abstracts; Ecology Abstracts KW - Aves KW - wildlife management KW - Sturnus vulgaris KW - D 04710:Control KW - Y 25886:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15682728?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Wildlife+Management&rft.atitle=Evaluation+of+D-pulegone+as+an+avian+repellent.&rft.au=Mason%2C+J+R&rft.aulast=Mason&rft.aufirst=J&rft.date=1990-01-01&rft.volume=54&rft.issue=1&rft.spage=130&rft.isbn=&rft.btitle=&rft.title=Journal+of+Wildlife+Management&rft.issn=0022541X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; Sturnus vulgaris; wildlife management ER - TY - JOUR T1 - Paecilomyces lilacinus , a colonist of Aspergillus flavus sclerotia buried in soil in Illinois and Georgia. AN - 15678872; 2316964 AB - Sclerotia of Aspergillus flavus Link: Fr. are an important source of inoculum in the disease cycle of this aflatoxin-producing fungus. We have been investigating the survival of A. flavus sclerotia that were buried in sandy soils at the University of Illinois River Valley Sand Field, Kilbourne, Illinois, and the Coastal Plains Research Station, Tifton, Georgia. This allows us to contrast survival in a temperate versus near-subtropical latitude on a similar soil type. We wanted to determine the fate of sclerotia while buried in soil up to 3 years in Illinois and Georgia without a susceptible host corp (e.g., peanuts, maize) in order to apply this information in planning crop rotation sequences. JF - Mycologia AU - Wicklow, D T AU - Wilson, D M AD - North. Reg. Res. Cent., ARS/USDA, 1815 N. University St., Peoria, IL 61604, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 393 EP - 395 VL - 82 IS - 3 SN - 0027-5514, 0027-5514 KW - Paecilomyces lilacinus KW - colonist KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Aspergillus flavus KW - USA, Illinois KW - USA, Georgia KW - aflatoxins KW - sclerotia KW - soil KW - K 03095:Soil KW - A 01047:General KW - K 03082:Mycotoxins UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15678872?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mycologia&rft.atitle=Paecilomyces+lilacinus+%2C+a+colonist+of+Aspergillus+flavus+sclerotia+buried+in+soil+in+Illinois+and+Georgia.&rft.au=Wicklow%2C+D+T%3BWilson%2C+D+M&rft.aulast=Wicklow&rft.aufirst=D&rft.date=1990-01-01&rft.volume=82&rft.issue=3&rft.spage=393&rft.isbn=&rft.btitle=&rft.title=Mycologia&rft.issn=00275514&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aspergillus flavus; USA, Illinois; USA, Georgia; soil; sclerotia; aflatoxins ER - TY - JOUR T1 - Volatile seed germination inhibitors from plant residues. AN - 15678389; 2301083 AB - Volatile emissions from residues of the winter cover legumes, Berseem clover (Trifolium alexandrinum L.), hairy vetch (Vicia hirsuta (L.) S.F. Gray), and crimson clover (Trifolium incarnatum L.), inhibited germination and seedling development of onion, carrot, and tomato. Using GC-MS, 31 C sub(2)-C sub(10) hydrocarbons, alcohols, aldehydes, ketones, esters, furans, and monoterpenes were identified in these residue emission mixtures. Mixtures of similar compounds were found in the volatiles released by herbicide-treated aerial and root residues of purple nutsedge (Cyperus rotundus L.) and the late-season woody stems and roots of cotton (Gossypium hirsutum L.). Vapor-phase onion, carrot, and tomato seed germination bioassays were used to determine the time- and concentration-dependent inhibition potential of 33 compounds that were either identified in the plant residue emissions or were structurally similar to identified compounds. JF - Journal of Chemical Ecology AU - Bradow, J M AU - Connick, WJ Jr AD - USDA, ARS, Southern Reg. Res. Cent., P.O. Box 19687, New Orleans, LA 70179, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 645 EP - 666 VL - 16 IS - 3 SN - 0098-0331, 0098-0331 KW - plants KW - residues KW - Ecology Abstracts KW - Lycopersicon esculentum KW - Vicia KW - inhibitors KW - Trifolium KW - allelochemicals KW - seed germination KW - Allium cepa KW - Daucus carota KW - D 04625:Plants - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15678389?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Volatile+seed+germination+inhibitors+from+plant+residues.&rft.au=Bradow%2C+J+M%3BConnick%2C+WJ+Jr&rft.aulast=Bradow&rft.aufirst=J&rft.date=1990-01-01&rft.volume=16&rft.issue=3&rft.spage=645&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Trifolium; Vicia; Allium cepa; Daucus carota; Lycopersicon esculentum; inhibitors; seed germination; allelochemicals ER - TY - JOUR T1 - Myocardial lesions in copper deficiency modified by dietary carbohydrates. AN - 15661295; 2292965 AB - The present investigation was undertaken to study the effect of feeding rats copper-deficient diets containing fructose as compared to starch or glucose on heart pathology assessed by both light and electron microscopy. The consumption of a diet containing fructose exacerbated the deficiency when compared to starch or glucose. This aggravated copper deficiency was correlated with myocardial lesions and the appearance of giant mitochondria with abnormal cristae. The data support previous observations which reported that fructose feeding exacerbates copper deficiency. In contrast, starch and glucose feeding ameliorate the deficiency. JF - Journal of Trace Elements in Experimental Medicine AU - Burns, WA AU - Fields, M AU - Smith, JC Jr AU - Reiser, S AD - USDA, ARS, Beltsville Hum. Nutr. Res. Cent., Vitam. and Miner. Nutr. Lab., Rm. 117, Build. 307, BARC-E., Beltsville, MD 20705, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 67 EP - 77 VL - 3 IS - 1 SN - 0896-548X, 0896-548X KW - cardiovascular pathology KW - Health & Safety Science Abstracts KW - copper KW - glucose KW - microscopy KW - carbohydrates KW - H SM9.32:CARDIOVASCULAR SYSTEM INJURIES UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15661295?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Trace+Elements+in+Experimental+Medicine&rft.atitle=Myocardial+lesions+in+copper+deficiency+modified+by+dietary+carbohydrates.&rft.au=Burns%2C+WA%3BFields%2C+M%3BSmith%2C+JC+Jr%3BReiser%2C+S&rft.aulast=Burns&rft.aufirst=WA&rft.date=1990-01-01&rft.volume=3&rft.issue=1&rft.spage=67&rft.isbn=&rft.btitle=&rft.title=Journal+of+Trace+Elements+in+Experimental+Medicine&rft.issn=0896548X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - copper; carbohydrates; microscopy; glucose ER - TY - JOUR T1 - The effect of peptides containing the arginine-glycine-aspartic acid sequence on the adsorption of foot-and-mouth disease virus to tissue culture cells. AN - 15659197; 2301546 AB - Sequencing of the VP1 of a large number of subtypes of foot-and-mouth disease virus (FMDV) has revealed the presence of a conserved arginine-glycine aspartic acid (RGD) sequence located in a highly exposed region. This sequence has been shown to be essential for the interaction of certain extracellular matrix and adhesion proteins with a superfamily of cell-surface receptors called integrins. We have examined the effects of synthetic peptides containing the RGD sequence on the binding of eight different subtypes of FMDV to tissue culture cells. The results showed that such peptides inhibited viral adsorption by 50-80%. JF - Virus Genes AU - Baxt, B AU - Becker, Y AD - USDA-ARS, Isl. Anim. Dis. Cent., P.O. Box 848, Greenport, NY 11944-0848, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 73 EP - 83 VL - 4 IS - 1 SN - 0920-8569, 0920-8569 KW - RGD KW - VP1 protein KW - foot-and-mouth disease virus KW - interaction KW - receptors KW - requirements KW - sequences KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Virology & AIDS Abstracts KW - V 22042:Adsorption, penetration & uncoating UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15659197?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Virus+Genes&rft.atitle=The+effect+of+peptides+containing+the+arginine-glycine-aspartic+acid+sequence+on+the+adsorption+of+foot-and-mouth+disease+virus+to+tissue+culture+cells.&rft.au=Baxt%2C+B%3BBecker%2C+Y&rft.aulast=Baxt&rft.aufirst=B&rft.date=1990-01-01&rft.volume=4&rft.issue=1&rft.spage=73&rft.isbn=&rft.btitle=&rft.title=Virus+Genes&rft.issn=09208569&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - DNA relatedness among species of Sterigmatomyces and Fellomyces . AN - 15658670; 2304067 AB - Species assigned to the anamorphic yeast genera Sterigmatomyces, Fellomyces, Tsuchiyaea , and Kurtzmanomyces were compared for extent of nuclear DNA complementarity. The following organisms show little relatedness and are recognized as genetically distinct species: Sterigmatomyces halophilus, Sterigmatomyces elviae, Fellomyces fuzhouensis , Fellomyces penicillatus, Fellomyces polyborus, Tsuchiyaea wingfieldii, Kurtzmanomyces nectairii , and Sterigmatosporidium polymorphum . Sterigmatomyces indicus exhibited a high level of DNA relatedness with Sterigmatomyces halophilus and is considered a synonym of the latter species despite the difference in nitrate assimilation that led to the initial taxonomic separation of these taxa. The three taxa Sterigmatomyces aphidis, Trichosporon oryzae , and Sporobolomyces antarcticus showed moderate to high levels of DNA relatedness and are considered synonyms of Vanrija antarctica . JF - International Journal of Systematic Bacteriology AU - Kurtzman, C P AD - North. Reg. Res. Cent., Agric. Res. Serv., USDA, Peoria, IL 61604, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 56 EP - 59 VL - 40 IS - 1 SN - 0020-7713, 0020-7713 KW - Sterigmatomyces halophilus KW - homology KW - Sterigmatomyces elviae KW - Fellomyces penicillatus KW - Fellomyces polyborus KW - Tsuchiyaea wingfieldii KW - Microbiology Abstracts B: Bacteriology KW - Fellomyces fuzhouensis KW - DNA KW - taxonomy KW - J 02740:Genetics and evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15658670?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Systematic+Bacteriology&rft.atitle=DNA+relatedness+among+species+of+Sterigmatomyces+and+Fellomyces+.&rft.au=Kurtzman%2C+C+P&rft.aulast=Kurtzman&rft.aufirst=C&rft.date=1990-01-01&rft.volume=40&rft.issue=1&rft.spage=56&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Systematic+Bacteriology&rft.issn=00207713&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Fellomyces fuzhouensis; taxonomy; DNA ER - TY - JOUR T1 - Effects of trap color, height, and placement around trees on capture of Mexican fruit flies (Diptera: Tephritidae). AN - 15655640; 2298307 AB - Green and yellow were the most attractive colors to male and female Mexican fruit flies, Anastrepha ludens (Loew), followed by amber, orange, and fluorescent yellow, on colored rectangles in the laboratory and as colored solutions in McPhail traps in the field. The most attractive wavelengths were in the green and yellow spectral regions from 500-580 nm. Black, red, blue, and white were not more attractive than colorless control traps. Attractivenss of red, orange, and yellow doubled from spring to autumn in the field, whereas attractiveness of green and amber did not change. Yeast hydrolysate was significantly more attractive than any of the colors. Combinations of green or yellow with yeast hydrolysate in McPhail traps did not enhance the attractiveness of yeast hydrolysate. More flies were captured at 1 and 2 m above the ground than at 0.1 or 3 m (tree tops). JF - Journal of Economic Entomology AU - Robacker, D C AU - Moreno, D S AU - Wolfenbarger, DA AD - USDA-ARS, Weslaco, TX 78596, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 412 EP - 419 VL - 83 IS - 2 SN - 0022-0493, 0022-0493 KW - Diptera KW - height KW - location KW - colour KW - Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - Anastrepha ludens KW - attraction KW - Tephritidae KW - traps KW - D 04659:Insects KW - Z 05207:Agricultural & general applied entomology KW - Y 25683:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15655640?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Effects+of+trap+color%2C+height%2C+and+placement+around+trees+on+capture+of+Mexican+fruit+flies+%28Diptera%3A+Tephritidae%29.&rft.au=Robacker%2C+D+C%3BMoreno%2C+D+S%3BWolfenbarger%2C+DA&rft.aulast=Robacker&rft.aufirst=D&rft.date=1990-01-01&rft.volume=83&rft.issue=2&rft.spage=412&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Tephritidae; Anastrepha ludens; traps; attraction ER - TY - JOUR T1 - Viability of Bacillus thuringiensis and its efficacy for larvae of the greater wax moth (Lepidoptera: Pyralidae) following storage of treated combs. AN - 15655323; 2294567 AB - Beeswax combs were treated with formulations of Bacillus thuringiensis Berliner and assayed for the presence of viable spores following storage at 10 or 30 degree C for different times and at different relative humidities. Other treated and stored combs were tested by feeding them to larvae of the greater wax moth, Galleria mellonella (L.). Increased storage time, temperature, and relative humidity reduced the number of viable B. thuringiensis spores on combs treated with a liquid concentrate of this bacterium (Certan, Sandoz, San Diego). A concomitant loss of activity against greater wax moth larvae after comb storage under certain conditions also was found. Sufficient numbers of spores do not remain or survive on treated combs in active honey bee colonies > 10-20 wk to preserve activity against wax moth larvae. JF - Journal of Economic Entomology AU - Vandenberg, J D AU - Shimanuki, H AD - Bee Biol. and Syst. Lab., USDA-ARS, Utah State Univ., Logan, UT 84322, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 760 EP - 765 VL - 83 IS - 3 SN - 0022-0493, 0022-0493 KW - viability KW - efficacy KW - Bacillus thuringiensis KW - Galleria mellonella KW - Lepidoptera KW - Pyralidae KW - biological control KW - pathogenicity KW - waxes KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Entomology Abstracts KW - A 01014:Others KW - Z 05182:Pathology KW - W 30513:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15655323?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Viability+of+Bacillus+thuringiensis+and+its+efficacy+for+larvae+of+the+greater+wax+moth+%28Lepidoptera%3A+Pyralidae%29+following+storage+of+treated+combs.&rft.au=Vandenberg%2C+J+D%3BShimanuki%2C+H&rft.aulast=Vandenberg&rft.aufirst=J&rft.date=1990-01-01&rft.volume=83&rft.issue=3&rft.spage=760&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Bacillus thuringiensis; Lepidoptera; Pyralidae; Galleria mellonella; pathogenicity; waxes; biological control ER - TY - JOUR T1 - Responses of laboratory-strain Mexican fruit flies, Anastrepha ludens , to combinations of fermenting fruit odor and male-produced pheromone in laboratory bioassays. AN - 15654994; 2299962 AB - The attractiveness to Anastrepha ludens adults of a combination of odor of fermented chapote fruit and pheromone was compared to attractiveness of both chapote and pheromone in laboratory bioassays. The chemical treatments were tested on 2-day-old and 10- to 12-day-old (sexually immature and mature, respectively), virgin and mated, nonstarved and starved, males and females during the early afternoon when flies were sexually inactive and the late afternoon when sexually mature flies were sexually active. The chapote-pheromone combination was equal to chapote odor alone in attractiveness to males and mated females. Pheromone partially inhibited attraction of immature females to chapote odor. Chapote odor almost completely inhibited attraction of sexually active females to pheromone. The potential for using a combination of chapote and pheromone as a trap bait is discussed. JF - Journal of Chemical Ecology AU - Robacker, D C AU - Garcia, JA AD - Crop Qual. and Fruit Insects Res., ARS, USDA, 2301 S. International Blvd., Weslaco, TX 78596, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 2027 EP - 2038 VL - 16 IS - 6 SN - 0098-0331, 0098-0331 KW - Anastrepha ludens KW - odors KW - Sargentia greggii KW - Ecology Abstracts; Entomology Abstracts KW - fruits KW - Tephritidae KW - attractancy KW - pheromones KW - Diptera KW - attractants KW - Z 05193:Orientation KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15654994?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Responses+of+laboratory-strain+Mexican+fruit+flies%2C+Anastrepha+ludens+%2C+to+combinations+of+fermenting+fruit+odor+and+male-produced+pheromone+in+laboratory+bioassays.&rft.au=Robacker%2C+D+C%3BGarcia%2C+JA&rft.aulast=Robacker&rft.aufirst=D&rft.date=1990-01-01&rft.volume=16&rft.issue=6&rft.spage=2027&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Diptera; Tephritidae; pheromones; fruits; attractancy; attractants ER - TY - JOUR T1 - Safety of grasshopper entomopoxviruses for caged adult honey bees (Hymenoptera: Apidae). AN - 15654108; 2299997 AB - Two entomopoxviruses (EPVs), one each from Melanoplus sanguinipes (F.) and Oedaleus senegalensis (Krauss), were tested for their safety for newly emerged adult workers of the honey bee, Apis mellifera L. Neither reductions in longevity nor pathological effects of the grasshopper EPVs were observed. JF - Journal of Economic Entomology AU - Vandenberg, J D AU - Streett, DA AU - Herbert, EW Jr AD - Bee Biol. and Syst. Lab., USDA-ARS, Utah State Univ., Logan, UT 84322-5310, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 784 EP - 787 VL - 83 IS - 3 SN - 0022-0493, 0022-0493 KW - entomopoxvirus KW - safety KW - Acrididae KW - Apidae KW - Apis mellifera KW - Hymenoptera KW - Melanoplus sanguinipes KW - Oedaleus senegalensis KW - Orthoptera KW - biological control KW - nontarget organisms KW - pathogenicity KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Virology & AIDS Abstracts; Entomology Abstracts KW - A 01014:Others KW - V 22160:Viral infections of invertebrates KW - Z 05182:Pathology KW - W 30513:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15654108?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Safety+of+grasshopper+entomopoxviruses+for+caged+adult+honey+bees+%28Hymenoptera%3A+Apidae%29.&rft.au=Vandenberg%2C+J+D%3BStreett%2C+DA%3BHerbert%2C+EW+Jr&rft.aulast=Vandenberg&rft.aufirst=J&rft.date=1990-01-01&rft.volume=83&rft.issue=3&rft.spage=784&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Apis mellifera; Apidae; Hymenoptera; Orthoptera; Acrididae; Melanoplus sanguinipes; Oedaleus senegalensis; biological control; pathogenicity; nontarget organisms ER - TY - JOUR T1 - Field populations of the Russian wheat aphid (Homoptera: Aphididae) and other cereal aphids on cool-season perennial grass accessions. AN - 15653741; 2295325 AB - Six species of cereal aphids infested field plots of perennial grass accessions of Festuca arundinacea Schreb. (tall fescue), Agropyron desertorum (Fisch. ex Link) Schultes (standard crested wheatgrass), and Dactylis glomerata L. (orchard grass) at Pullman and Central Ferry, Wash., in summer 1988. Seed of cool-season perennial grass accessions from the United States germplasm collection is routinely increased at Pullman and Central Ferry, Wash. Russian wheat aphid, Diuraphis noxia (Mordvilko) (Homoptera: Aphididae), assumed dominant status at Central Ferry and English grain aphid, Macrosiphum avenae (F.), was dominant at Pullman. Other species found were Metopolophium dirhodum (Walker), greenbug, Schizaphis graminum (Rondani), bird cherry-oat aphid, Rhopalosiphum padi (L.), and Sipha elegans del Guercio. Overall, aphid densities were highest in nonirrigated plots at Pullman (x super(-) aphids/five tillers = 191.87), intermediate in irrigated plots at Central Ferry (x super(-) = 47.86), and lowest in nonirrigated plots at Central Ferry (x super(-) = 15.70). JF - Journal of Economic Entomology AU - Clement, S L AU - Johnson, R C AU - Pike, K S AD - Plant Germplasm Introd. and Test. Res. Unit, USDA-ARS, 59 Johnson Hall, Washington State Univ., Pullman, WA 99164, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 846 EP - 849 VL - 83 IS - 3 SN - 0022-0493, 0022-0493 KW - Homoptera KW - Entomology Abstracts; Ecology Abstracts KW - Festuca arundinacea KW - population density KW - Aphididae KW - Diuraphis noxia KW - Dactylis glomerata KW - USA, Washington KW - Agropyron desertorum KW - pest status KW - D 04659:Insects KW - Z 05207:Agricultural & general applied entomology KW - D 04636:Grasses UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15653741?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Field+populations+of+the+Russian+wheat+aphid+%28Homoptera%3A+Aphididae%29+and+other+cereal+aphids+on+cool-season+perennial+grass+accessions.&rft.au=Clement%2C+S+L%3BJohnson%2C+R+C%3BPike%2C+K+S&rft.aulast=Clement&rft.aufirst=S&rft.date=1990-01-01&rft.volume=83&rft.issue=3&rft.spage=846&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aphididae; Festuca arundinacea; Agropyron desertorum; Dactylis glomerata; Diuraphis noxia; USA, Washington; pest status; population density ER - TY - JOUR T1 - Effects of Xylocoris flavipes (Hemiptera: Anthocoridae) releases on moth populations in experimental peanut storages. AN - 15653487; 2299974 AB - A biological control test in experimental peanut storages indicated that release of large numbers of the warehouse pirate bug, Xylocoris flavipes (Reuter) (Hemiptera: Anthocoridae), a generalist predator of stored-product insects, has considerable potential for suppression of stored-product moth populations. Suppression of the almond moth, Cadra cautella (Walker), and the Indianmeal moth, Plodia interpunctella (Huebner) (Lepidoptera: Pyralidae), was dependent on both the prey species and environmental conditions. Release of X. flavipes suppressed small populations of almond and Indianmeal moths by as much as 78.8% and 71.4%, respectively, before cold weather and a severe freeze eliminated the almond moth population in January. JF - Journal of Entomological Science AU - Brower, J H AU - Mullen, MA AD - Stored-Prod. Insects Res. and Dev. Lab., USDA-ARS, P.O. Box 22909, Savannah, GA 31403, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 268 EP - 276 VL - 25 IS - 2 SN - 0749-8004, 0749-8004 KW - Xylocoris flavipes KW - Heteroptera KW - Entomology Abstracts; Ecology Abstracts KW - Pyralidae KW - Arachis KW - biological control KW - Cadra cautella KW - Lepidoptera KW - stored products KW - Plodia interpunctella KW - Anthocoridae KW - Z 05207:Agricultural & general applied entomology KW - D 04710:Control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15653487?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Entomological+Science&rft.atitle=Effects+of+Xylocoris+flavipes+%28Hemiptera%3A+Anthocoridae%29+releases+on+moth+populations+in+experimental+peanut+storages.&rft.au=Brower%2C+J+H%3BMullen%2C+MA&rft.aulast=Brower&rft.aufirst=J&rft.date=1990-01-01&rft.volume=25&rft.issue=2&rft.spage=268&rft.isbn=&rft.btitle=&rft.title=Journal+of+Entomological+Science&rft.issn=07498004&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Anthocoridae; Arachis; Cadra cautella; Plodia interpunctella; Lepidoptera; Pyralidae; stored products; biological control ER - TY - JOUR T1 - Honeydew analysis for detecting phloem transport of plant natural products. Implications for host-plant resistance to sap-sucking insects. AN - 15653025; 2299900 AB - Analysis of honeydew excreted by various sap-sucking insects indicated the presence of certain plant secondary constituents in the phloem of their host plants. Honeydew excreted by mealybugs (Pseudococcus longispinus ), living on Castanospermum australe , contained the indolizidine alkaloid castanospermine, a potent beta -glucosidase inhibitor. Similarly, honeydew from green peach aphids (Myzus persicae ), feeding on Senecio vulgaris flower buds, contained the pyrrolizidine alkaloid senecionine, its N-oxide, and hydrolytic products including retronecine. Cardenolides were detected in the honeydew of oleander aphids (Aphis nerii ) feeding on oleander (Nerium oleander ), indicating that these compounds are translocated in the phloem. On the other hand, honeydew from greenbugs (Schizaphis graminum ), feeding on barley, lacked gramine or related indole metabolites. Similarly MBOA, the breakdown product of DIMBOA, was not detected in the honeydew of greenbugs living on DIMBOA-containing wheat. JF - Journal of Chemical Ecology AU - Molyneux, R J AU - Campbell, B C AU - Dreyer, D L AD - West. Reg. Res. Cent., Agric. Res. Serv., USDA, 800 Buchanan St., Albany, CA 94710, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 1899 EP - 1910 VL - 16 IS - 6 SN - 0098-0331, 0098-0331 KW - honeydew KW - chemical composition KW - analysis KW - Ecology Abstracts; Entomology Abstracts KW - Aphididae KW - host plants KW - phloem KW - pest resistance KW - allelochemicals KW - Homoptera KW - Coccidae KW - Z 05203:Relations to plants KW - D 04625:Plants - general KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15653025?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Honeydew+analysis+for+detecting+phloem+transport+of+plant+natural+products.+Implications+for+host-plant+resistance+to+sap-sucking+insects.&rft.au=Molyneux%2C+R+J%3BCampbell%2C+B+C%3BDreyer%2C+D+L&rft.aulast=Molyneux&rft.aufirst=R&rft.date=1990-01-01&rft.volume=16&rft.issue=6&rft.spage=1899&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Homoptera; Aphididae; Coccidae; pest resistance; phloem; allelochemicals; host plants ER - TY - JOUR T1 - Effect of racemic disparlure released from grids of plastic ropes on mating success of gypsy moth (Lepidoptera: Lymantriidae) as influenced by dose and by population density. AN - 15652713; 2300174 AB - Studies were done in Cecil County, Md., during summer 1981 in which racemic disparlure was used to disrupt mating of the gypsy moth, Lymantria dispar (L). The disruptant was applied in ropes of laminated plastic tape manually placed in a grid in replicated 1-ha forest plots at the rates of o, 25, or 250 g (AI)/ha. Significant decreases in male trap catch and in mating success occurred with increasing dose for both released and natural populations of female moths. Both trap catch suppression and female mating disruption were density dependent; grater suppression occurred in lower density gypsy moth populations than in higher density populations for a given dose of disruptant. The presence or absence of traps baited with pheromone did not significantly affect female matching success. JF - Journal of Economic Entomology AU - Webb, R E AU - Leonhardt, BA AU - Plimmer, J R AU - Tatman, K M AU - Boyd, V K AU - Cohen, D L AU - Schwalve, C P AU - Douglass, L W AD - Insect Chem. Ecol. Lab., USDA-ARS, Build. 402, BARC-E., Beltsville, MD 20705, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 910 EP - 916 VL - 83 IS - 3 SN - 0022-0493, 0022-0493 KW - population density KW - disruption KW - effects on KW - USA, Maryland, Cecil Cty. KW - disparlure KW - Ecology Abstracts; Entomology Abstracts KW - Lymantriidae KW - pheromones KW - mating KW - Lymantria dispar KW - Lepidoptera KW - Z 05207:Agricultural & general applied entomology KW - D 04710:Control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15652713?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Effect+of+racemic+disparlure+released+from+grids+of+plastic+ropes+on+mating+success+of+gypsy+moth+%28Lepidoptera%3A+Lymantriidae%29+as+influenced+by+dose+and+by+population+density.&rft.au=Webb%2C+R+E%3BLeonhardt%2C+BA%3BPlimmer%2C+J+R%3BTatman%2C+K+M%3BBoyd%2C+V+K%3BCohen%2C+D+L%3BSchwalve%2C+C+P%3BDouglass%2C+L+W&rft.aulast=Webb&rft.aufirst=R&rft.date=1990-01-01&rft.volume=83&rft.issue=3&rft.spage=910&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lepidoptera; Lymantriidae; Lymantria dispar; pheromones; mating ER - TY - JOUR T1 - Spatial distribution of the Nantucket pine tip moth (Lepidoptera: Tortricidae) in newly established loblolly pine plantations. AN - 15652575; 2294796 AB - The spatial distribution of trees infested by the Nantucket pine tip moth, Rhyacionia frustrana (Comstock), was examined using random 36 tree samples taken from contiguous quadrats in eight loblolly pine plantations in their first and second year of growth in southwestern Arkansas. Infestations were distributed throughout first-year plantations by the end of the second tip moth generation. The distribution of infested trees was generally random in the first generation, with increasing aggregation in subsequent generations. Factors such as vegetation level may alter this pattern. JF - Journal of Entomological Science AU - Clarke AU - Stephen, F M AU - Dunn, JE AD - USDA, Forest Serv., Green St., Athens, GA 30602, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 209 EP - 215 VL - 25 IS - 2 SN - 0749-8004, 0749-8004 KW - Rhyacionia frustrana KW - Ecology Abstracts; Entomology Abstracts KW - Pinus taeda KW - Lepidoptera KW - plantations KW - spatial distribution KW - Tortricidae KW - USA, Arkansas KW - D 04659:Insects KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15652575?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Entomological+Science&rft.atitle=Spatial+distribution+of+the+Nantucket+pine+tip+moth+%28Lepidoptera%3A+Tortricidae%29+in+newly+established+loblolly+pine+plantations.&rft.au=Clarke%3BStephen%2C+F+M%3BDunn%2C+JE&rft.aulast=Clarke&rft.aufirst=&rft.date=1990-01-01&rft.volume=25&rft.issue=2&rft.spage=209&rft.isbn=&rft.btitle=&rft.title=Journal+of+Entomological+Science&rft.issn=07498004&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lepidoptera; Tortricidae; Pinus taeda; USA, Arkansas; spatial distribution; plantations ER - TY - JOUR T1 - Resistance in triticale to the Russian wheat aphid (Homoptera: Aphididae). AN - 15652134; 2300055 AB - The Russian wheat aphid, Diuraphis noxia (Mordvilko), has become a serious threat to wheat, Triticum spp., production in the western United States. The use of resistant wheat cultivars as a management strategy for this pest is highly desirable. Thus, several collections of wheat and related species have been tested to locate sources of resistance. The USDA-ARS National Triticale Collection, consisting of 731 lines, was one of the collections tested. Initial mass screening tests were done in greenhouse flats in environmental chambers. Seven triticale, xTriticosecale Wittmack, lines with varying degrees of resistance were identified. Four lines from Russia (PI 386148, PI 386149, PI 386150, and PI 386156) and one line from California (CI 82) were the most resistant in the screening tests. Additional tests were done with all seven lines to determine the mechanisms of resistance. The Russian triticales have been incorporated into the wheat breeding program for development of germplasm resistant to D. noxia . JF - Journal of Economic Entomology AU - Webster, JA AD - Plant Sci. and Water Conserv. Lab., USDA-ARS, 1301 N. Western, Stillwater, OK 74075, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 1091 EP - 1095 VL - 83 IS - 3 SN - 0022-0493, 0022-0493 KW - Diuraphis noxia KW - Triticosecale KW - Aphididae KW - Homoptera KW - pest resistance KW - plant breeding KW - Biotechnology and Bioengineering Abstracts; Entomology Abstracts KW - W 30511:Plant breeding and aquaculture KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15652134?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Resistance+in+triticale+to+the+Russian+wheat+aphid+%28Homoptera%3A+Aphididae%29.&rft.au=Webster%2C+JA&rft.aulast=Webster&rft.aufirst=JA&rft.date=1990-01-01&rft.volume=83&rft.issue=3&rft.spage=1091&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aphididae; Homoptera; pest resistance; plant breeding ER - TY - JOUR T1 - Safety of four entomopathogens for caged adult honey bees (Hymenoptera: Apidae). AN - 15651464; 2298973 AB - Four entomopathogens were tested to determine their safely to caged adult honey bees, Apis mellifera L. The bacterium Bacillus sphaericus Neide and the fungus Entomophaga maimaiga Humber, Shimazu and Soper did not affect bee longevity and did not cause disease among treated bees. Both of these microorganisms are considered safe for honey bees. A technical powder and a formulated product of the bacterium Bacillus thuringiensis var. tenebrionis Krieg, Huger, Langenbruch and Schnetter reduced bee longevity at the higher concentration tested (10 super(8) spores/ml sucrose syrup), but did not cause disease. This bacterium will probably not cause undesirable effects on honey bee colonies under field application conditions. The fungus Beauveria bassiana) (Balsamo) reduced bee longevity at the two highest concentrations tested and caused mycosis among treated bees. JF - Journal of Economic Entomology AU - Vandenberg, J D AD - Bee Biol. and Syst. Lab., USDA-ARS, Utah State Univ., Logan, UT 84322-5310, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 755 EP - 759 VL - 83 IS - 3 SN - 0022-0493, 0022-0493 KW - pathogens KW - effects on KW - var.tenebrionis KW - Apis mellifera KW - Bacillus sphaericus KW - Bacillus thuringiensis KW - Bacillus thuringiensis tenebrionis KW - Beauveria bassiana KW - Entomophaga maimaiga KW - Hymenoptera KW - mycosis KW - nontarget organisms KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Entomology Abstracts KW - A 01014:Others KW - W 30513:Pest control KW - K 03088:Fungi: animal KW - Z 05183:Toxicology & resistance UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15651464?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Safety+of+four+entomopathogens+for+caged+adult+honey+bees+%28Hymenoptera%3A+Apidae%29.&rft.au=Vandenberg%2C+J+D&rft.aulast=Vandenberg&rft.aufirst=J&rft.date=1990-01-01&rft.volume=83&rft.issue=3&rft.spage=755&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Apis mellifera; Hymenoptera; Bacillus sphaericus; Entomophaga maimaiga; Bacillus thuringiensis tenebrionis; Beauveria bassiana; Bacillus thuringiensis; nontarget organisms; mycosis ER - TY - JOUR T1 - Reproductive potential, sex ratio, and mating efficiency of the straw itch mite (Acari: Pyemotidae). AN - 15650646; 2298227 AB - Pyemotid mites are common parasites of many species of Lepidoptera, Coleoptera, and Hymenoptera. They have been associated incidentally with virtually every insect order, paralyzing and ultimately killing their hosts. The straw itch mite, Pyemotes tritici (Lagreze-Fossat and Montane 1851), has been studied the most in this family. P. tritici reproduces by arrhenotokous parthenogenesis and sex ratio is extremely female biased. Females become physogastric as they feed on host hemolymph. Offspring development is ovoviviparous: diploid adult females and haploid adult males emerge from a birth canal on the opisthosoma. Two studies were designed to assess female and male reproductive potential (progeny number and sex ratio), emergence rates, and male mating ability. JF - Journal of Economic Entomology AU - Bruce, WA AU - Wrensch, D L AD - Benefic. Insects Lab., USDA-ARS, Beltsville Agric. Res. Cent.-E., Build. 476, Beltsville, MD 20705, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 384 EP - 391 VL - 83 IS - 2 SN - 0022-0493, 0022-0493 KW - reproduction KW - Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - Pyemotidae KW - sex ratio KW - Pyemotes tritici KW - mating KW - Acari KW - Y 25422:Invertebrates (excluding insects) KW - D 04660:Arachnids KW - Z 05207:Agricultural & general applied entomology KW - Z 05192:Reproductive behavior UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15650646?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Reproductive+potential%2C+sex+ratio%2C+and+mating+efficiency+of+the+straw+itch+mite+%28Acari%3A+Pyemotidae%29.&rft.au=Bruce%2C+WA%3BWrensch%2C+D+L&rft.aulast=Bruce&rft.aufirst=WA&rft.date=1990-01-01&rft.volume=83&rft.issue=2&rft.spage=384&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Acari; Pyemotidae; Pyemotes tritici; sex ratio; mating ER - TY - JOUR T1 - Heliothis virescens (Lepidoptera: Noctuidae): Analysis of population responses following introduction of backcrossed insects against native populations on St. Croix, U.S. Virgin Islands. AN - 15649114; 2297076 AB - A pilot test was conducted on St. Croix, U.S. Virgin Islands, to study the potential for suppressing populations of the tobacco budworm, Heliothis virescens (F.), by releasing backcrossed insects that possessed an inherit4d male sterility derived from the hybridization of H. subflexa (Guenee) and H. virescens . Following the release of nearly 40,000 backcrossed insects per day from 27 August to 17 December 1980, 95% of the tobacco budworms collected in February 1981 were progeny from released backcrossed females. This degree of sterility within the native tobacco budworm reduced the larval population on Bastardia viscosa (Koth.) > 80% and prevented population increase on pigeon pea (Cajanus cajan (L.) Druce), the two most important host plants for tobacco budworm on St. Croix. The backcrossed phenotype became extinct within 5 yr of the last release, apparently because of genetic drift and selection. JF - Journal of Economic Entomology AU - Proshold, F I AU - Smith, J W AD - Insect Biol. and Popul. Manage. Res. Lab., USDA-ARS, Tifton, GA 31793, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 405 EP - 411 VL - 83 IS - 2 SN - 0022-0493, 0022-0493 KW - Heliothis virescens KW - US Virgin I., St. Croix KW - Lepidoptera KW - Noctuidae KW - biological control KW - genetic control KW - population genetics KW - Genetics Abstracts; Biotechnology and Bioengineering Abstracts; Ecology Abstracts; Entomology Abstracts KW - W 30513:Pest control KW - Z 05207:Agricultural & general applied entomology KW - D 04710:Control KW - G 07367:GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15649114?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Heliothis+virescens+%28Lepidoptera%3A+Noctuidae%29%3A+Analysis+of+population+responses+following+introduction+of+backcrossed+insects+against+native+populations+on+St.+Croix%2C+U.S.+Virgin+Islands.&rft.au=Proshold%2C+F+I%3BSmith%2C+J+W&rft.aulast=Proshold&rft.aufirst=F&rft.date=1990-01-01&rft.volume=83&rft.issue=2&rft.spage=405&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lepidoptera; Noctuidae; biological control; genetic control; population genetics ER - TY - JOUR T1 - Influence of cohort age and host age on oviposition activity and offspring sex ratio of Biosteres tryoni (Hymenoptera: Braconidae), a larval parasitoid of Ceratitis capitata (Diptera: Tephritidae). AN - 15648229; 2298192 AB - Factors important in oviposition activity of the parasitoid Biosteres tryoni (Cameron) were examined using the Mediterranean fruit fly, Ceratitis capitata (Wiedemann), as a host. B. tryoni females preferentially oviposited into larvae of middle and late third instars compared with early third instars. The ratio of female parasitoid progeny ranged from 60% of late third instars particularly at early parasitoid ages of 1-8 d. However, the proportion of uneclosed parasitized host pupae increased to a maximum of 34.4% for late third instars. The proportion of ovipositing parasitoid females in a cohort increased progressively (to 35.6% maximum) with parasitoid female age. Maximum average yield of parasitoids per oviposition unit (modified Petri dish with a tight-fitted lid) was 230.8, 210.2 and 199.6 for late third, mid-third, and early third instar hosts, respectively. JF - Journal of Economic Entomology AU - Wong, TTY AU - Ramadan, M M AU - McInnis, DO AU - Mochizuki, N AD - Trop. Fruit and Veg. Res. Lab., USDA-ARS, P.O. Box 2280, Honolulu, HI 96804, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 779 EP - 783 VL - 83 IS - 3 SN - 0022-0493, 0022-0493 KW - Ceratitis capitata KW - effects on KW - Biosteres tryoni KW - Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - Braconidae KW - age KW - hosts KW - Hymenoptera KW - sex ratio KW - Tephritidae KW - host-parasite interactions KW - oviposition KW - Diptera KW - D 04659:Insects KW - Z 05201:Parasitism: entomophagous KW - Y 25423:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15648229?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Influence+of+cohort+age+and+host+age+on+oviposition+activity+and+offspring+sex+ratio+of+Biosteres+tryoni+%28Hymenoptera%3A+Braconidae%29%2C+a+larval+parasitoid+of+Ceratitis+capitata+%28Diptera%3A+Tephritidae%29.&rft.au=Wong%2C+TTY%3BRamadan%2C+M+M%3BMcInnis%2C+DO%3BMochizuki%2C+N&rft.aulast=Wong&rft.aufirst=TTY&rft.date=1990-01-01&rft.volume=83&rft.issue=3&rft.spage=779&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Diptera; Tephritidae; Hymenoptera; Braconidae; sex ratio; oviposition; age; hosts; host-parasite interactions ER - TY - JOUR T1 - Fate of pentachlorophenol (PCP) in sterile soils inoculated with the white-rot basidiomycete Phanerochaete chrysosporium : Mineralization, volatilization and depletion of PCP. AN - 15617638; 2264695 AB - The fate of pentachlorophenol (PCP) in three sterile soils inoculated with a white-rot basidiomycete, Phanerochaete chrysosporium , was investigated. Mineralization and volatilization of PCP and its transformation products and residual PCP concentration were measured for 2-months from soil microcosms inoculated with P. chrysosporium or left non-inoculated. There was a dramatic decrease (ave. decrease 98%) in the extractable PCP concentration in inoculated soils compared to that in non-inoculated soils (ave. decrease 43%). In the three inoculated soils, the greatest loss of PCP was during the first week. Initial rates of PCP depletion varied by soil. Differences among these soils in quantities of soil nutrients available for fungal growth, particularly carbon and nitrogen, may have been indirectly responsible for the differences by influencing the rates of soil colonization. Pentachlorophenol mineralized or evolved as volatile products was light in the three soils. Our results suggest that P. chrysosporium removes PCP per se from soils primarily by converting it to non-volatile products. JF - Soil Biology and Biochemistry AU - Lamar, R T AU - Glaser, JA AU - Kirk, T K AD - Inst. Microb. and Biochem. Technol., USDA For. Serv., For. Prod. Lab., 1 Gifford Pinchot Dr., Madison, WI 53705-2398, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 433 EP - 440 VL - 22 IS - 4 SN - 0038-0717, 0038-0717 KW - pentachlorophenol KW - volatilization KW - soils KW - Pollution Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology; Ecology Abstracts KW - Phanerochaete chrysosporium KW - biodegradation KW - mineralization KW - soil KW - P 5000:LAND POLLUTION KW - A 01016:Microbial degradation KW - K 03098:Spoilage & biodegradation KW - D 04802:Pollution characteristics and fate UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15617638?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Biology+and+Biochemistry&rft.atitle=Fate+of+pentachlorophenol+%28PCP%29+in+sterile+soils+inoculated+with+the+white-rot+basidiomycete+Phanerochaete+chrysosporium+%3A+Mineralization%2C+volatilization+and+depletion+of+PCP.&rft.au=Lamar%2C+R+T%3BGlaser%2C+JA%3BKirk%2C+T+K&rft.aulast=Lamar&rft.aufirst=R&rft.date=1990-01-01&rft.volume=22&rft.issue=4&rft.spage=433&rft.isbn=&rft.btitle=&rft.title=Soil+Biology+and+Biochemistry&rft.issn=00380717&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Phanerochaete chrysosporium; soil; mineralization; biodegradation ER - TY - JOUR T1 - Establishment, dispersal, and influence of Ceutorhynchus litura on Canada thistle (Cirsium arvense ) in the Gallatin Valley of Montana. AN - 15612545; 2262204 AB - Ceutorhynchus litura dispersed 9 km in 15 yr from its point of release in 1972 with incident of infestation of Canada thistle plants at one study site reaching 92% in 1987. Plants generally survived larval feeding in the spring, but holes created by departing larvae provided entrances for arthropods, nematodes, and diseases. Subsequent mortality rates were high for belowground Canada thistle shoots. However, the number of new shoots from underground roots the following spring usually offset the mortality that had been indirectly caused by C. litura . JF - Weed Science AU - Rees, N E AD - USDA-ARS, Rangeland Insect Lab., Biol. Control Weeds Res. Units, Montana State Univ., Bozeman, MT 59717, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 198 EP - 200 VL - 38 IS - 2 SN - 0043-1745, 0043-1745 KW - dispersal KW - USA, Montana, Gallatin Valley KW - Entomology Abstracts; Ecology Abstracts KW - biological control KW - weed control KW - Coleoptera KW - Cirsium arvense KW - Ceutorhynchus litura KW - population establishment KW - Curculionidae KW - Z 05207:Agricultural & general applied entomology KW - D 04710:Control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15612545?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Weed+Science&rft.atitle=Establishment%2C+dispersal%2C+and+influence+of+Ceutorhynchus+litura+on+Canada+thistle+%28Cirsium+arvense+%29+in+the+Gallatin+Valley+of+Montana.&rft.au=Rees%2C+N+E&rft.aulast=Rees&rft.aufirst=N&rft.date=1990-01-01&rft.volume=38&rft.issue=2&rft.spage=198&rft.isbn=&rft.btitle=&rft.title=Weed+Science&rft.issn=00431745&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Cirsium arvense; Ceutorhynchus litura; Coleoptera; Curculionidae; population establishment; biological control; weed control ER - TY - JOUR T1 - Gustatory sensitivity of the herbivore Tilapia zillii to amino acids. AN - 15611031; 2257750 AB - The gustatory sensitivity of the herbivorous fish Tilapia zillii was investigated using electrophysiological techniques. Integrated responses from facial taste nerves were recorded during stimulation by 11 amino acids. All compounds proved to be effective stimuli. The relative stimulatory efficacy (RSE) determined at 1 x 10 super(-3) M indicated that stimuli can be organized into three groups on the basis of similarity of efficacy. Effects of pH which altered the RSE of some amino acids are documented. Amino acid RSE differed to some extent from those of previously studied carnivorous fish. There was concordance between the composition of preferred food, effective feeding stimuli and the peripheral receptor responses. These observations support the hypothesis that peripheral chemosensitivity might serve as a mechanism of feeding specialization in some fish. JF - Journal of Fish Biology AU - Johnsen, P B AU - Zhou, H AU - Adams, MA AD - USDA, Agric. Res. Serv., Southern Reg. Res. Cent., P.O. Box 19687, New Orleans, LA 70179, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 587 EP - 593 VL - 36 IS - 4 SN - 0022-1112, 0022-1112 KW - Pisces KW - amino acids KW - animal physiology KW - feeding behaviour KW - gustatory stimuli KW - sensitivity KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Chemoreception Abstracts; Oceanic Abstracts; ASFA Aquaculture Abstracts KW - Tilapia zillii KW - palatability KW - diets KW - competition KW - Q3 08582:Fish culture KW - R 18059:Feeding KW - O 5060:Aquaculture KW - Q1 08425:Nutrition and feeding habits KW - Q1 08582:Fish culture UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15611031?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Fish+Biology&rft.atitle=Gustatory+sensitivity+of+the+herbivore+Tilapia+zillii+to+amino+acids.&rft.au=Johnsen%2C+P+B%3BZhou%2C+H%3BAdams%2C+MA&rft.aulast=Johnsen&rft.aufirst=P&rft.date=1990-01-01&rft.volume=36&rft.issue=4&rft.spage=587&rft.isbn=&rft.btitle=&rft.title=Journal+of+Fish+Biology&rft.issn=00221112&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - animal physiology; diets; feeding behaviour; palatability; competition; Tilapia zillii ER - TY - JOUR T1 - Response of parasitoid Eucelatoria bryani to selected plant material in an olfactometer. AN - 15610071; 2247010 AB - The response of the parasitoid Eucelatoria bryani Sabrosky to fresh plant material and several plant extracts was examined in an olfactometer. The plants tested can serve as a food source for hosts (Heliothis spp.) of the parasitoid. Females responded positively to 13 of the 19 fresh plant tissues tested, and all of the extracts tested. Males responded to only two of the fresh plant tissues and to none of the extracts. The significance of plant variety, morphology, and phenology on the host habitat-selection behavior of this parasitoid is discussed. JF - Journal of Chemical Ecology AU - Martin, WR Jr AU - Nordlund, DA AU - Nettles, WC Jr AD - USDA, ARS, Insect Biol. and Popul. Manage. Res. Lab., P.O. Box 748, Tifton, GA 31793, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 499 EP - 508 VL - 16 IS - 2 SN - 0098-0331, 0098-0331 KW - Eucelatoria bryani KW - Animal Behavior Abstracts; Entomology Abstracts; Ecology Abstracts KW - Lepidoptera KW - food plants KW - Tachinidae KW - Noctuidae KW - plant extracts KW - Heliothis KW - parasitism KW - host location KW - kairomones KW - Diptera KW - Z 05167:Behavior KW - Z 05201:Parasitism: entomophagous KW - D 04659:Insects KW - Y 25693:Insects KW - Y 25653:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15610071?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Response+of+parasitoid+Eucelatoria+bryani+to+selected+plant+material+in+an+olfactometer.&rft.au=Martin%2C+WR+Jr%3BNordlund%2C+DA%3BNettles%2C+WC+Jr&rft.aulast=Martin&rft.aufirst=WR&rft.date=1990-01-01&rft.volume=16&rft.issue=2&rft.spage=499&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Heliothis; Diptera; Tachinidae; Lepidoptera; Noctuidae; food plants; kairomones; plant extracts; host location; parasitism ER - TY - JOUR T1 - Phyllosticta penicillariae on pearl millet in the United States. AN - 15603252; 2256717 AB - Phyllosticta penicillariae Speg. was isolated from pearl millet (Pennisetum glaucum (L.) R. Br.) in a breeding nursery at Tifton, Georgia, in July 1989. Severely infected plants were stunted and chlorotic, with numerous leaf lesions measuring about 5 x 2.5 mm. Lesions were generally parallel-sided, with dark brown margins and light brown necrotic tissue in the center. Coalesced lesions usually resulted in tattered leaf tissue. Leaf margins were frequently necrotic. Pycnidia were occasionally observed in necrotic tissue and averaged 75.8 mu m in diameter. Conidia were hyaline, single-celled, elliptical to ovate, and biguttulate and averaged 6.2 x 2.8 mu m. Symptoms on pearl millet in the greenhouse were reproduced 20 days after inoculation with a conidial suspension followed by incubation in a moist chamber. The fungus was readily reisolated. To our knowledge, this is the first report of P. penicillariae in the continental United States. JF - Plant Disease AU - Wilson, J P AU - Burton, G W AD - USDA-ARS Forage and Turf Unit, Univ. Georgia, Coastal Plain Exp. Stn., Tifton, GA 31793, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 331 VL - 74 IS - 4 SN - 0191-2917, 0191-2917 KW - Phyllosticta penicillariae KW - lesions KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - Pennisetum glaucum KW - USA, Georgia KW - leaves KW - A 01026:Gramineous crops UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15603252?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Plant+Disease&rft.atitle=Phyllosticta+penicillariae+on+pearl+millet+in+the+United+States.&rft.au=Wilson%2C+J+P%3BBurton%2C+G+W&rft.aulast=Wilson&rft.aufirst=J&rft.date=1990-01-01&rft.volume=74&rft.issue=4&rft.spage=331&rft.isbn=&rft.btitle=&rft.title=Plant+Disease&rft.issn=01912917&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pennisetum glaucum; USA, Georgia; leaves ER - TY - JOUR T1 - Competition for red-cockaded woodpecker roost and nest cavities: Effects of resin age and entrance diameter. AN - 15602573; 2241836 AB - Competition for roost and nest cavities was investigated in a Texas population of Red-cockaded Woodpeckers (Picoides borealis ) in longleaf pine (Pinus palustris ) habitat. Twenty-two percent of all examined cavities were occupied by Red-cockaded Woodpeckers, and 46% were occupied by other species. Red-cockaded Woodpeckers did not roost in the open or in sub-optimum cavities due to the presence of other species, with one temporary exception. Southern flying squirrels (Glaucomys volans ) were a potential competitor. Similar to Red-cockaded Woodpeckers, flying squirrels preferred cavities with small entrance diameters, and their use of cavities was not hampered by the presence of a resin barrier or woodpecker cluster status (active vs inactive). Other potentially competing species were either rare or restricted to enlarged cavities no longer used by Red-cockaded Woodpeckers. These data suggest that competition for cavities is not an important factor in this particular population of Texas Red-cockaded Woodpeckers during the period prior to breeding. JF - Wilson Bulletin AU - Rudolph, D C AU - Conner, R N AU - Turner, J AD - Wildl. Habitat and Silvic. Lab., Southern Forest Exp. Stn., USDA Forest Serv., Nacogdoches, TX 75962, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 23 EP - 36 VL - 102 IS - 1 SN - 0043-5643, 0043-5643 KW - Picoides borealis KW - effects on KW - Ecology Abstracts KW - resins KW - interspecific relationships KW - Pinus palustris KW - nests KW - USA, Texas KW - competition KW - D 04635:Conifers KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15602573?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wilson+Bulletin&rft.atitle=Competition+for+red-cockaded+woodpecker+roost+and+nest+cavities%3A+Effects+of+resin+age+and+entrance+diameter.&rft.au=Rudolph%2C+D+C%3BConner%2C+R+N%3BTurner%2C+J&rft.aulast=Rudolph&rft.aufirst=D&rft.date=1990-01-01&rft.volume=102&rft.issue=1&rft.spage=23&rft.isbn=&rft.btitle=&rft.title=Wilson+Bulletin&rft.issn=00435643&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinus palustris; USA, Texas; competition; interspecific relationships; nests; resins ER - TY - JOUR T1 - Changes in the distribution of trichothecenes and zearalenone in maize with Gibberella ear rot during storage at cool temperatures. AN - 15599430; 2245330 AB - Substantial levels of deoxynivalenol (3,799-4,139 ppb), 15-acetyldeoxynivalenol (746-818 ppb), and zearalenone (870-1,500 ppb) were detected in the severely rotted kernels from one side of ears of a commercial maize hybrid (DeKalb XL-12) that had been wound-inoculated 7 days after silk emergence with strain NRRL 13188 of Gibberella zeae . Storage of the remainder of the ears at 12 or 16 C for 10 wk produced no change in the concentration of deoxynivalenol recovered, whereas 15-acetyldeoxynivalenol disappeared and zearalenone increased 1.7- to 2.3-fold. At harvest, a trace of zearalenone was detected in samples of the sound kernels from ears showing typical symptoms of Gibberella ear rot; after storage, 64-132 ppb were detected. There was no evidence for expansion of the rotted areas or growth of fungal mycelium during the storage period. JF - Plant Disease AU - Wicklow, D T AU - Bennett, G A AU - Caldwell, R W AU - Smalley, E B AD - USDA-ARS, North. Reg. Res. Cent., Peoria, IL 61604, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 304 EP - 305 VL - 74 IS - 4 SN - 0191-2917, 0191-2917 KW - Gibberella zeae KW - detection KW - vomitoxin KW - 15-acetyldeoxynivalenol KW - zearalenone KW - trichothecenes KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - cold storage KW - Zea mays KW - ear rot KW - mycotoxins KW - A 01022:Mycotoxins KW - K 03082:Mycotoxins UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15599430?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Plant+Disease&rft.atitle=Changes+in+the+distribution+of+trichothecenes+and+zearalenone+in+maize+with+Gibberella+ear+rot+during+storage+at+cool+temperatures.&rft.au=Wicklow%2C+D+T%3BBennett%2C+G+A%3BCaldwell%2C+R+W%3BSmalley%2C+E+B&rft.aulast=Wicklow&rft.aufirst=D&rft.date=1990-01-01&rft.volume=74&rft.issue=4&rft.spage=304&rft.isbn=&rft.btitle=&rft.title=Plant+Disease&rft.issn=01912917&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Zea mays; cold storage; mycotoxins; ear rot ER - TY - JOUR T1 - Sex pheromone of hickory shuckworm Cydia caryana . Development of an effective field lure. AN - 15597671; 2247207 AB - Extracts of the sex pheromone glands of female Cydia caryana were evaluated by electroantennography and gas chromatography-mass spectrometry. These studies suggested the following compounds were potential sex pheromone components; (Z)-8- and/or (E)-9-dodecenyl acetate (50 pg/female), dodecyl acetate (40 pg/female), and (E,E)-8, 10-dodecadienyl acetate (25 pg/female). In field tests only the diene produced trap catch, and when the other components were added to the diene, trap catch was not increased. When the diene was formulated in red natural septa, only transient and low catches were obtained, but when gray halobutyl isoprene elastomeric septa were used, high and consistent catches were obtained for eight weeks. Catches depended on the ratio of (E,E)-8,10 to (E,Z)-8,10 isomers. JF - Journal of Chemical Ecology AU - McDonough, L M AU - Eikenbary, R D AU - Smith, M T AU - Davis, H G AU - Smithhisler, CL AU - Hedger, G A AU - Campbell, R K AU - Payne, JA AU - Reid, W AU - McVay, J R AD - Yakima Agric. Res. Lab., Agric. Res. Serv., USDA, 3706 W. Nob Hill Blvd., Yakima, WA 98902, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 317 EP - 324 VL - 16 IS - 2 SN - 0098-0331, 0098-0331 KW - Cydia caryana KW - Lepidoptera KW - Tortricidae KW - pheromone traps KW - sex pheromone KW - Biotechnology and Bioengineering Abstracts; Chemoreception Abstracts; Animal Behavior Abstracts; Entomology Abstracts; Ecology Abstracts KW - W 30513:Pest control KW - Z 05207:Agricultural & general applied entomology KW - D 04710:Control KW - R 18053:Pest control KW - Y 25883:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15597671?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Sex+pheromone+of+hickory+shuckworm+Cydia+caryana+.+Development+of+an+effective+field+lure.&rft.au=McDonough%2C+L+M%3BEikenbary%2C+R+D%3BSmith%2C+M+T%3BDavis%2C+H+G%3BSmithhisler%2C+CL%3BHedger%2C+G+A%3BCampbell%2C+R+K%3BPayne%2C+JA%3BReid%2C+W%3BMcVay%2C+J+R&rft.aulast=McDonough&rft.aufirst=L&rft.date=1990-01-01&rft.volume=16&rft.issue=2&rft.spage=317&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lepidoptera; Tortricidae; sex pheromone; pheromone traps ER - TY - JOUR T1 - Resistance to beet western yellows virus among forage Brassicas. AN - 15596505; 2253969 AB - Fourteen forage Brassica cultivars representing four species were evaluated for resistance to beet western yellows virus (BWYV), potato leafroll virus (PLRV), and the tomato yellow top strain of PLRV (PLRV-TY) under field exposure. Incidence of field infection with BWYV ranged in several susceptibility classes from less than 2 to 100%. The four most susceptible cultivars were all turnips. The four most resistant cultivars included one each of the four Brassica species. All four species were represented among the intermediately susceptible cultivars. Once infection was achieved, there was little or no difference among the cultivars in resistance to systemic virus accumulation. Symptoms of BWYV were mild. Neither strain of PLRV was detected by ELISA or aphid transmission. There was no correlation between numbers of aphids on plants in the fall and susceptibility to infection. All Brassica cultivars survived winters, but neither live aphids (Myzus persicae ) nor aphid eggs were found on plants at the end of winter. JF - Plant Disease AU - Thomas, P E AU - Evans, D W AU - Fox, L AU - Biever, K D AD - USDA-ARS, Yakima Agric. Res. Lab., Yakima, WA 98902, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 327 EP - 330 VL - 74 IS - 4 SN - 0191-2917, 0191-2917 KW - disease resistance KW - cultivars KW - Virology & AIDS Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - vectors KW - beet western yellows virus KW - potato leafroll virus KW - Myzus persicae KW - Brassica KW - A 01028:Others KW - V 22182:Susceptibility & virus multiplication KW - A 01030:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15596505?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Plant+Disease&rft.atitle=Resistance+to+beet+western+yellows+virus+among+forage+Brassicas.&rft.au=Thomas%2C+P+E%3BEvans%2C+D+W%3BFox%2C+L%3BBiever%2C+K+D&rft.aulast=Thomas&rft.aufirst=P&rft.date=1990-01-01&rft.volume=74&rft.issue=4&rft.spage=327&rft.isbn=&rft.btitle=&rft.title=Plant+Disease&rft.issn=01912917&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Brassica; beet western yellows virus; Myzus persicae; potato leafroll virus; vectors ER - TY - JOUR T1 - Red-cockaded woodpeckers vs rat snakes: The effectiveness of the resin barrier. AN - 15593988; 2247235 AB - Red-cockaded Woodpeckers (Picoides borealis ) excavate resin wells in the immediate vicinity of roost and nest cavity entrances. Resin wells are worked regularly, resulting in a copious and persistent resin flow that coats the tree trunk, especially below cavity entrances. Red-cockaded Woodpeckers also scale loose bark from cavity trees and closely adjacent trees. These two behaviors result in smooth, sticky surfaces surrounding cavity entrances. Climbing experiments on cavity, scaled, and control trees using rat snakes (Elaphe obsoleta ) demonstrate that these behaviors produce a resinous barrier that is highly effective in preventing predatory snakes from gaining access to active Red-cockaded Woodpecker cavities. JF - Wilson Bulletin AU - Rudolph, D C AU - Kyle, H AU - Conner, R N AD - Wildl. Habitat and Silvicult. Lab., Southern For. Exp. Stn., USDA For. Serv., Nacogdoches, TX 75962, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 14 EP - 22 VL - 102 IS - 1 SN - 0043-5643, 0043-5643 KW - Picoides borealis KW - Animal Behavior Abstracts; Ecology Abstracts KW - Elaphe obsoleta KW - resins KW - nests KW - USA, Southeast KW - defensive behavior KW - Pinus KW - anti-predator behavior KW - D 04671:Birds KW - Y 25506:Birds KW - D 04670:Reptiles UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15593988?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wilson+Bulletin&rft.atitle=Red-cockaded+woodpeckers+vs+rat+snakes%3A+The+effectiveness+of+the+resin+barrier.&rft.au=Rudolph%2C+D+C%3BKyle%2C+H%3BConner%2C+R+N&rft.aulast=Rudolph&rft.aufirst=D&rft.date=1990-01-01&rft.volume=102&rft.issue=1&rft.spage=14&rft.isbn=&rft.btitle=&rft.title=Wilson+Bulletin&rft.issn=00435643&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinus; Elaphe obsoleta; USA, Southeast; resins; nests; defensive behavior; anti-predator behavior ER - TY - JOUR T1 - Drought may increase danger from some poisonous plants. AN - 15584971; 2230070 AB - Drought may increase the danger that poisonous plants pose to livestock, according to researchers with the USDA-ARS Poisonous Plants Research Laboratory in Logan. The increased risk reflects the scarcity of other forages, which may force livestock to graze poisonous plants. There's also evidence that poisonous plants experiencing moderate moisture stress divert resources from the production of normal metabolites to the production of toxic compounds. Fortunately, other poisonous plants may die out or fail to emerge during a drought. The authors review management recommendations for some poisonous plants that may be a greater threat to livestock during the current drought. They also review a few poisonous plants that are likely to be less common during a dry spell. JF - Utah Science AU - Ralphs, M AU - Pfister, J AU - James, L AD - USDA-ARS Poisonous Plants Res. Lab., Logan, UT, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 148 EP - 153 VL - 50 IS - 4 SN - 0042-1502, 0042-1502 KW - droughts KW - Health & Safety Science Abstracts KW - poisoning KW - plants KW - livestock KW - H SE6.29:DROUGHTS UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15584971?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Utah+Science&rft.atitle=Drought+may+increase+danger+from+some+poisonous+plants.&rft.au=Ralphs%2C+M%3BPfister%2C+J%3BJames%2C+L&rft.aulast=Ralphs&rft.aufirst=M&rft.date=1990-01-01&rft.volume=50&rft.issue=4&rft.spage=148&rft.isbn=&rft.btitle=&rft.title=Utah+Science&rft.issn=00421502&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - plants; poisoning; livestock ER - TY - JOUR T1 - Autumnal populations of arthropods on aster and goldenrod in the delta of Mississippi. AN - 15584810; 2235948 AB - During the period 30 September to 22 October 1986, 8054 arthropods were captured by sweepnet on flowering Aster pilosus (aster) and Solidago altissima (goldenrod). The principal species captured were two Miridae (Heteroptera): the tarnished plant bug (TPB), Lygus lineolaris (22%), and Taylorilygus pallidulus (TPAL) (22%). Phytophages, most of which were mirids, represented 77% of the assemblage. TPB was twice as abundant as TPAL on aster; the opposite was true on goldenrod. These two mirid species represented 74% of the phytophages on goldenrod, but only 44% on aster. Spiders represented 71% of the predator/parasite component. Significant more predators occurred on aster than on goldenrod. JF - Journal of Entomological Science AU - Young, O P AU - Lockley, T C AD - USDA-APHIS-BBEP, 6505 Belcrest Rd., Hyattsville, MD 20872, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 185 EP - 195 VL - 25 IS - 1 SN - 0749-8004, 0749-8004 KW - community composition KW - entomofauna KW - Ecology Abstracts; Entomology Abstracts KW - Solidago altissima KW - Aster pilosus KW - Taylorilygus pallidulus KW - Miridae KW - Hemiptera KW - species composition KW - autumn KW - USA, Mississippi KW - Lygus lineolaris KW - Z 05203:Relations to plants KW - Z 05205:Populations & general ecology KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15584810?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Entomological+Science&rft.atitle=Autumnal+populations+of+arthropods+on+aster+and+goldenrod+in+the+delta+of+Mississippi.&rft.au=Young%2C+O+P%3BLockley%2C+T+C&rft.aulast=Young&rft.aufirst=O&rft.date=1990-01-01&rft.volume=25&rft.issue=1&rft.spage=185&rft.isbn=&rft.btitle=&rft.title=Journal+of+Entomological+Science&rft.issn=07498004&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aster pilosus; Solidago altissima; Lygus lineolaris; Taylorilygus pallidulus; Miridae; Hemiptera; USA, Mississippi; species composition; autumn ER - TY - JOUR T1 - Natural products phytotoxicity. A bioassay suitable for small quantities of slightly water-soluble compounds. AN - 15583722; 2242077 AB - A large variety of secondary metabolites that can inhibit germination and/or seedling growth are produced by plants in low quantities. The objective of this study was to develop a bioassay capable of reliably assessing reductions in germination percentage and seedling length of small-seeded plant species caused by exposure to minute quantities of these compounds. The germination and growth of alfalfa (Medicago sativa ), annual ryegrass (Lolium multiflorum ), and velvetleaf (Abutilon theophrasti ) were evaluated against six known phytotoxins from five chemical classes; cinmethylin (a herbicidal cineole derivative) was selected as a comparison standard. Each phytotoxin, dissolved in a suitable organic solvent, was placed on water-agar in small tissue culture wells. After the solvent evaporated, imbibed seeds were placed on the agar; after three days, germination percentages and seedling lengths were measured. JF - Journal of Chemical Ecology AU - Dornbos, DL Jr AU - Spencer, G F AD - USDA/ARS Northern Reg. Res. Cent., 1815 N. University St., Peoria, IL 61604, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 339 EP - 352 VL - 16 IS - 2 SN - 0098-0331, 0098-0331 KW - bioassays KW - phytotoxicity KW - Ecology Abstracts KW - plant extracts KW - Abutilon theophrasti KW - Lolium multiflorum KW - allelochemicals KW - Medicago sativa KW - D 04625:Plants - general KW - D 04001:Methodology - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15583722?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Natural+products+phytotoxicity.+A+bioassay+suitable+for+small+quantities+of+slightly+water-soluble+compounds.&rft.au=Dornbos%2C+DL+Jr%3BSpencer%2C+G+F&rft.aulast=Dornbos&rft.aufirst=DL&rft.date=1990-01-01&rft.volume=16&rft.issue=2&rft.spage=339&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Medicago sativa; Lolium multiflorum; Abutilon theophrasti; allelochemicals; plant extracts ER - TY - JOUR T1 - A detached-leaf method to study pecan aphid behavior and biology. AN - 15579129; 2235927 AB - A detached-leaf method for the study of blackmargined aphid, Monellia caryella , yellow pecan aphid, Monelliopsis pecanis , and black pecan aphid, Melanocallis caryaefoliae , the three species of aphids that infest pecan, Carya illinoensis , trees is described. Petri dishes containing 15 ml of 1% water agar were used for the support of 4-cm super(2), surface sterilized, pecan leaf pieces. Compared to previously employed methods, this technique is a low cost, rapid and less labor intense method for the study of aphid biology and behavior, and enables the selective rearing of these aphid species. JF - Journal of Entomological Science AU - Reilly, C C AU - Tedders, W L AD - Southeast. Fruit and Tree Nut Res. Lab., ARS-USDA, P.O. Box 87, Byron, GA 31008, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 85 EP - 88 VL - 25 IS - 1 SN - 0749-8004, 0749-8004 KW - pests KW - methodology KW - behaviour KW - Monelliopsis pecanis KW - Ecology Abstracts; Entomology Abstracts KW - Carya illinoensis KW - Aphididae KW - Monellia caryella KW - Homoptera KW - biology KW - Z 05205:Populations & general ecology KW - D 04001:Methodology - general KW - D 04659:Insects KW - Z 05207:Agricultural & general applied entomology KW - Z 05156:Techniques UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15579129?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Entomological+Science&rft.atitle=A+detached-leaf+method+to+study+pecan+aphid+behavior+and+biology.&rft.au=Reilly%2C+C+C%3BTedders%2C+W+L&rft.aulast=Reilly&rft.aufirst=C&rft.date=1990-01-01&rft.volume=25&rft.issue=1&rft.spage=85&rft.isbn=&rft.btitle=&rft.title=Journal+of+Entomological+Science&rft.issn=07498004&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Monellia caryella; Carya illinoensis; Aphididae; Homoptera; biology ER - TY - JOUR T1 - Morphological and pathological studies of Colletotrichum capsici and C. indicum . AN - 15574597; 2224914 AB - Four isolates of Colletotrichum capsici from pepper and cotton from Louisiana, and four isolates of C. indicum from cotton from El Salvador, Thailand and India were studied for pathogenicity on unwounded cotton bolls and for morphological characters on the host and in culture which might serve to separate the two species. All isolates, regardless of host or geographic origin, were pathogenic on unwounded cotton bolls. Relative amount and location of fungal stromatic tissue development within boll tissues varied similarly for both species. Conidial dimensions were nearly identical for C. capsici and C. indicum, Colletotrichum indicum should be considered a synonym of C. capsici based on similar pathogenic and morphological characters. JF - Mycologia AU - Roberts, R G AU - Snow, J P AD - USDA-ARS, Tree Fruit Res. Lab., 1104 N. Western Ave., Wenatchee, WA 98801, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 82 EP - 90 VL - 82 IS - 1 SN - 0027-5514, 0027-5514 KW - morphology KW - pathology KW - Colletotrichum capsici KW - Colletotrichum indicum KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Capsicum KW - Gossypium KW - A 01028:Others KW - K 03089:Fungi: plant KW - K 03002:Fungi UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15574597?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mycologia&rft.atitle=Morphological+and+pathological+studies+of+Colletotrichum+capsici+and+C.+indicum+.&rft.au=Roberts%2C+R+G%3BSnow%2C+J+P&rft.aulast=Roberts&rft.aufirst=R&rft.date=1990-01-01&rft.volume=82&rft.issue=1&rft.spage=82&rft.isbn=&rft.btitle=&rft.title=Mycologia&rft.issn=00275514&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Gossypium; Capsicum ER - TY - JOUR T1 - Abundance of the garden fleahopper (Hemiptera: Miridae) on alfalfa and parasitism by Leiophron uniformis (Gahan) (Hymenoptera: Braconidae). AN - 15571625; 2226885 AB - In 1985, the garden fleahopper, Halticus bractatus (Say), was observed damaging alfalfa regrowth in New Jersey. Field observations during the next two years showed that this insect was sporadically abundant but that it usually did not cause noticeable injury to established alfalfa stands. The parasite Leiophron uniformis (Gahan), the first nymphal parasite discovered in this host, was detected in these collections. In addition, a small proportion of garden fleahopper adults was parasitized by this braconid and by an unidentified nematode. L. uniformis killed an average of 50% of all fleahopper nymphs that we sampled and is likely the principal reason why populations of this pest are not larger and more damaging in alfalfa. JF - Journal of Economic Entomology AU - Day, W H AU - Saunders, L B AD - Benefic. Insects Res. Lab., USDA-ARS, Newark, DE 19713, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 101 EP - 106 VL - 83 IS - 1 SN - 0022-0493, 0022-0493 KW - Medicago sativa KW - effects on KW - Leiophron uniforms KW - Ecology Abstracts; Entomology Abstracts KW - USA, New Jersey KW - Miridae KW - Halticus bractatus KW - Braconidae KW - Hemiptera KW - parasitism KW - Hymenoptera KW - abundance KW - D 04659:Insects KW - Z 05201:Parasitism: entomophagous KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15571625?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Abundance+of+the+garden+fleahopper+%28Hemiptera%3A+Miridae%29+on+alfalfa+and+parasitism+by+Leiophron+uniformis+%28Gahan%29+%28Hymenoptera%3A+Braconidae%29.&rft.au=Day%2C+W+H%3BSaunders%2C+L+B&rft.aulast=Day&rft.aufirst=W&rft.date=1990-01-01&rft.volume=83&rft.issue=1&rft.spage=101&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Halticus bractatus; Miridae; Hemiptera; Braconidae; Hymenoptera; USA, New Jersey; parasitism; abundance ER - TY - JOUR T1 - Control of arthropods on apple selections with scab (Ascomycetes: Mycophaerellaceae) and European red mite (Acari: Tetranychidae) resistance. AN - 15571527; 2226859 AB - Use of pest and disease resistant cultivars in pest management is an alternative to commercial apple production that depends on use of chemical pesticides. Over a 3-yr period, we produced fruit that were 86% free of damage by key pests using selections with apple scab, Venturia inaequalis (Cke.) Wint, and European red mite, Panonychus ulmi (Koch) resistance and three critically timed sprays of either fenvalerate or phosmet. Although we did not use one, a fungicide may be needed to produce fruit that would grade well if summer diseases, Gloedes pomogena (Schw.) Colby and Leptothyrium pomi (Mont. & Fr.) Sacc. are a problem. The management program for these resistant selections produced a crop of undamaged fruit comparable with one that would be produced with a calendar-based spray program on commercially grown cultivars susceptible to pests and diseases. JF - Journal of Economic Entomology AU - Goonewardene, H F AU - Pliego, G AU - McCabe, G P AU - Howard, PH AU - Oliver, P J AD - USDA-ARS, Dep. Entomol., Purdue Univ., West Lafayette, IN 47907, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 180 EP - 188 VL - 83 IS - 1 SN - 0022-0493, 0022-0493 KW - integrated control KW - Ecology Abstracts; Entomology Abstracts KW - insecticides KW - Panonychus ulmi KW - Tetranychidae KW - pest resistance KW - USA, Indiana KW - Malus KW - Acari KW - Z 05207:Agricultural & general applied entomology KW - D 04710:Control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15571527?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Control+of+arthropods+on+apple+selections+with+scab+%28Ascomycetes%3A+Mycophaerellaceae%29+and+European+red+mite+%28Acari%3A+Tetranychidae%29+resistance.&rft.au=Goonewardene%2C+H+F%3BPliego%2C+G%3BMcCabe%2C+G+P%3BHoward%2C+PH%3BOliver%2C+P+J&rft.aulast=Goonewardene&rft.aufirst=H&rft.date=1990-01-01&rft.volume=83&rft.issue=1&rft.spage=180&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Malus; Panonychus ulmi; Tetranychidae; Acari; USA, Indiana; pest resistance; insecticides ER - TY - JOUR T1 - Bionomics and seasonal abundance of the banded sunflower moth (Lepidoptera: Cochylidae) on cultivated sunflower in the northern Great Plains. AN - 15569976; 2226881 AB - The banded sunflower moth, Cochylis hospes Walsingham, is a pest of cultivated sunflower, Helianthus annuus L., in the northern Great Plains. Adults were first detected between 7 and 11 July in each year between 1983 and 1986. Adult population peaks also showed little variation among years, appearing on 22-25 July each year. Oviposition on the heads (capitula) occurred when plants were in the early-bud stage through anthesis (R2-6). Larvae were present in sunflower heads for 6-10 wk and reached peak abundance in early to mid-August. After eclosion, larvae fed on the inner surface of the head bracts or florets. Older larvae (third to fifth instars) entered and fed on mature seeds after chewing a hole in the apical end of the hull (pericarp). Mature larvae dropped to the soil and constructed silken cocoons to overwinter. There was one generation per year. Each larva consumed more than six mature sunflower seeds. JF - Journal of Economic Entomology AU - Charlet, L D AU - Gross, T A AD - Northern Crop Sci. Lab., USDA-ARS, State Univ. Stn., Fargo, ND 58105, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 135 EP - 141 VL - 83 IS - 1 SN - 0022-0493, 0022-0493 KW - bionomics KW - seasonal variations KW - Ecology Abstracts; Entomology Abstracts KW - life history KW - Cochylis hospes KW - Lepidoptera KW - USA, North Dakota KW - ecology KW - Cochylidae KW - abundance KW - Z 05197:Habits & life histories KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15569976?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Bionomics+and+seasonal+abundance+of+the+banded+sunflower+moth+%28Lepidoptera%3A+Cochylidae%29+on+cultivated+sunflower+in+the+northern+Great+Plains.&rft.au=Charlet%2C+L+D%3BGross%2C+T+A&rft.aulast=Charlet&rft.aufirst=L&rft.date=1990-01-01&rft.volume=83&rft.issue=1&rft.spage=135&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Cochylis hospes; Cochylidae; Lepidoptera; USA, North Dakota; life history; ecology; abundance ER - TY - JOUR T1 - Sapindaceae, cyanolipids, and bugs. AN - 15568594; 2226656 AB - Scentless plant bugs (Heteroptera: Rhopalidae) are so named because adults of the Serinethinae have vestigial metathoracic scent glands. Serinethines are seed predators of Sapindales, especially Sapindaceae that produce toxic cyanolipids. In two serinethine species whose ranges extend into the southern United States, Jadera haematoloma and J. sanguinolenta , sequestration of host cyanolipids as glucosides renders these gregarious, aposematic insects unpalatable to a variety of predators. The blood glucoside profile and cyanogenesis of Jadera varies depending on the cyanolipid chemistry of hosts, and adults and larvae fed golden rain tree seeds (Koelreuteria paniculata ) excrete the volatile lactone, 4-methyl-2(5H)-furanone, to which they are attracted. Loss of the usual heteropteran defensive glands in serinethines may have coevolved with host specificity on toxic plants, and the orientation of Jadera to a volatile excretory product could be an adaptive response to save time. JF - Journal of Chemical Ecology AU - Aldrich, J R AU - Carroll, S P AU - Lusby, W R AU - Thompson, MJ AU - Kochansky, J P AU - Waters, R M AD - Insect Horm. Lab., USDA-ARS, B-467, BARC-East, Beltsville, MD 20705, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 199 EP - 210 VL - 16 IS - 1 SN - 0098-0331, 0098-0331 KW - host specificity KW - sequestering KW - cyanolipids KW - Jadera sanguinolenta KW - Chemoreception Abstracts; Ecology Abstracts; Entomology Abstracts KW - Rhopalidae KW - defensive mechanisms KW - Jadera haematoloma KW - attractants KW - Sapindaceae KW - Hemiptera KW - cyanogenesis KW - allelochemicals KW - Z 05203:Relations to plants KW - D 04659:Insects KW - Z 05198:Defense & offense KW - R 18052:Feeding UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15568594?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Sapindaceae%2C+cyanolipids%2C+and+bugs.&rft.au=Aldrich%2C+J+R%3BCarroll%2C+S+P%3BLusby%2C+W+R%3BThompson%2C+MJ%3BKochansky%2C+J+P%3BWaters%2C+R+M&rft.aulast=Aldrich&rft.aufirst=J&rft.date=1990-01-01&rft.volume=16&rft.issue=1&rft.spage=199&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Jadera haematoloma; Rhopalidae; Hemiptera; Sapindaceae; defensive mechanisms; allelochemicals; cyanogenesis; attractants ER - TY - JOUR T1 - Ground and aircraft infrared observations over a partially-vegetated area. AN - 15568086; 2226458 AB - Thermometric observations over a row crop (cotton, Gossypium hirsutum L.) with 20 per cent cover using hand-held radiometers were made during several clear days near Maricopa, a town in south central Arizona. A ground sampling routine developed for estimating a composite temperature for the cotton field compared favourably with surface temperatures taken for one day from an aircraft flying at an altitude of approximately 150 m. Both ground and airborne radiometric measurements were from nadir angle traversing the row crop. It was found that by considering an equation for the radiative balance at the surface, a composite surface temperature could be calculated which was within plus or minus 1 multiplied by 5 degree C of the value given by the labour-intensive ground sampling method or the aircraft. JF - International Journal of Remote Sensing AU - Kustas, W P AU - Choudhury, B J AU - Inoue, Y AU - Pinter, P J AU - Moran AU - Jackson, R D AU - Reginato, R J AD - USDA, Agric. Res. Serv., Hydrol. Lab., Beltsville, MD 20705, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 409 EP - 427 VL - 11 IS - 3 SN - 0143-1161, 0143-1161 KW - aircraft KW - infrared KW - radiometers KW - temperature measurement KW - agriculture KW - remote sensing KW - surface properties KW - vegetation patterns KW - Ecology Abstracts KW - USA, Arizona KW - D 04625:Plants - general KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15568086?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Remote+Sensing&rft.atitle=Ground+and+aircraft+infrared+observations+over+a+partially-vegetated+area.&rft.au=Kustas%2C+W+P%3BChoudhury%2C+B+J%3BInoue%2C+Y%3BPinter%2C+P+J%3BMoran%3BJackson%2C+R+D%3BReginato%2C+R+J&rft.aulast=Kustas&rft.aufirst=W&rft.date=1990-01-01&rft.volume=11&rft.issue=3&rft.spage=409&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Remote+Sensing&rft.issn=01431161&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - USA, Arizona; remote sensing; vegetation patterns; agriculture; surface properties ER - TY - JOUR T1 - Fungi on Chamaecyparis nootkatensis . AN - 15561250; 2224369 AB - Fungi were isolated and collected from Alaska-yellow cedar (Chamaecyparis nootkatensis ) trees and identified to help determine if any could be the primary cause of the extensive decline and mortality of this valuable tree species in southeast Alaska. Of the 20 taxa of fungi isolated and 33 collected, 36 taxa are new reports on Alaska-yellow cedar and 24 are new reports from Alaska on any host. Previously, 41 fungi were reported on Alaska-yellow cedar, therefore, a total of 77 have now been reported on this tree species in its native range. Several potential pathogens were found in southeast Alaska: Armillaria sp., iGymnosporangium nootkatense, Seiridium cardinale , and Apostrasseria sp.; however, their low incidence or association with non-symptomatic tissues of Alaska-yellow cedar suggests that none is the primary cause of the extensive decline and mortality. JF - Mycologia AU - Hennon, P E AD - USDA Forest Serv., Forest Pest Manage. and Pac. Northwest Res. Stn., For. Sci. Lab., Juneau, AK 99802, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 59 EP - 66 VL - 82 IS - 1 SN - 0027-5514, 0027-5514 KW - fungi KW - identification KW - Chamaecyparis nootkatensis KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - USA, Alaska KW - plant diseases KW - K 03089:Fungi: plant KW - K 03010:Fungi KW - A 01045:Diseases & treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15561250?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mycologia&rft.atitle=Fungi+on+Chamaecyparis+nootkatensis+.&rft.au=Hennon%2C+P+E&rft.aulast=Hennon&rft.aufirst=P&rft.date=1990-01-01&rft.volume=82&rft.issue=1&rft.spage=59&rft.isbn=&rft.btitle=&rft.title=Mycologia&rft.issn=00275514&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - USA, Alaska; plant diseases ER - TY - JOUR T1 - Laboratory evaluation of dyes as ultraviolet screens for the gypsy moth (Lepidoptera: Lymantriidae) nuclear polyhedrosis virus. AN - 15559629; 2224454 AB - Seventy-nine dyes were evaluated as radiation protectants for the gypsy moth, Lymantria dispar (L.), nuclear polyhedrosis virus (NPV). Forty-one dyes (51.9% of total dye population) preserved 11-50% of original activity, and 18 dyes (22.8% of total population) were effective protectants (i.e., >50% original activity remaining). Five dyes (lissamine green, acridine yellow, brilliant yellow, alkali blue, and mercurochrome) were very effective (i.e., >70% original activity remaining), and one (congo red) provided complete protection (i.e., 100% original activity remaining). A high positive correlation (r = +0.845) was found between good protection and absorbance at 320-400 nm, whereas a lower correlation (r = +0.568) was found between protection and absorbance at 280-320 nm. JF - Journal of Economic Entomology AU - Shapiro, M AU - Robertson, J L AD - Insect Pathol. Lab., USDA-ARS, BARC-W, Beltsville, MD 20705, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 168 EP - 172 VL - 83 IS - 1 SN - 0022-0493, 0022-0493 KW - evaluation KW - dyes KW - protection KW - Lepidoptera KW - Lymantria dispar KW - Lymantriidae KW - U.V. radiation KW - biological control KW - nuclear polyhedrosis virus KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Virology & AIDS Abstracts; Entomology Abstracts KW - A 01014:Others KW - V 22160:Viral infections of invertebrates KW - Z 05182:Pathology KW - W 30513:Pest control KW - Z 05156:Techniques UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15559629?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Laboratory+evaluation+of+dyes+as+ultraviolet+screens+for+the+gypsy+moth+%28Lepidoptera%3A+Lymantriidae%29+nuclear+polyhedrosis+virus.&rft.au=Shapiro%2C+M%3BRobertson%2C+J+L&rft.aulast=Shapiro&rft.aufirst=M&rft.date=1990-01-01&rft.volume=83&rft.issue=1&rft.spage=168&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - nuclear polyhedrosis virus; Lymantria dispar; Lymantriidae; Lepidoptera; U.V. radiation; biological control ER - TY - JOUR T1 - Plant responses to rising carbon dioxide and potential interactions with air pollutants. AN - 15556265; 2208741 AB - As global population increases and industrialization expands, carbon dioxide (CO sub(2)) and toxic air pollutants can be expected to be injected into the atmosphere at increasing rates. This analysis reviews a wide range of direct plant responses to rising CO sub(2), increasing levels of gaseous pollutants, and climate change, and to potential interactions among the factors. Although several environmental interactions on stomata and foliage temperatures are reviewed briefly, a comprehensive review of effects of potential climatic change on plants is not a major objective of this analysis. Research shows that elevated CO sub(2) increases photosynthetic rates, leaf area, biomass, and yield. Elevated CO sub(2) also reduces transpiration rate per unit leaf area, but not in proportion to reduction of stomatal conductance, because foliage temperature tends to rise. With increasing leaf area and foliage temperature, water use per unit land area is scarcely reduced by elevated CO sub(2). Increases in photosynthetic water-use efficiency are caused primarily by increased photosynthesis rather than reduced transpiration. JF - Journal of Environmental Quality AU - Allen, LH Jr AD - USDA-ARS, Build. 164, Agron. Dep., Univ. Florida, Gainesville, FL 32611-0621, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 15 EP - 34 VL - 19 IS - 1 SN - 0047-2425, 0047-2425 KW - plants KW - air pollutants KW - Pollution Abstracts KW - photosynthesis KW - carbon dioxide KW - P 0000:AIR POLLUTION KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15556265?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Plant+responses+to+rising+carbon+dioxide+and+potential+interactions+with+air+pollutants.&rft.au=Allen%2C+LH+Jr&rft.aulast=Allen&rft.aufirst=LH&rft.date=1990-01-01&rft.volume=19&rft.issue=1&rft.spage=15&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-12 N1 - SubjectsTermNotLitGenreText - carbon dioxide; photosynthesis ER - TY - JOUR T1 - Effects of predator fecal odors on feed selection by sheep and cattle. AN - 15484698; 2217635 AB - The effectiveness of predator fecal odors in modifying feeding selection by sheep and cattle was investigated in two trials. In trial 1, animals could select from feed bins contaminated with coyote, fox, cougar, or bear fecal odor, and oil of wintergreen, or select the control feed. All odors were rejected (P < 0.01) by sheep and cattle, except bear odors by sheep. In trial 2, animals could select feed during 10-min periods in an open 11-m X 16-m arena. Fecal odor did not influence approaches to feed bins, or head entries into bins. Only coyote fecal odor reduced (P < 0.05) the time spent feeding in the contaminated bin, and increased (P < 0.05) consumption from the control bin by both cattle and sheep. Some animals on some test days refused to feed from either feed bin, although cattle and sheep closely inspected bins. JF - Journal of Chemical Ecology AU - Pfister, JA AU - Mueller-Schwarze, D AU - Balph, D F AD - USDA-ARS, Poisonous Plant Res. Lab., Logan, UT 84321, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 573 EP - 584 VL - 16 IS - 2 SN - 0098-0331, 0098-0331 KW - feeding behaviour KW - effects on KW - odors KW - cattle KW - sheep KW - Chemoreception Abstracts; Animal Behavior Abstracts; Ecology Abstracts KW - feces KW - predators KW - Y 25497:Mammals (excluding primates) KW - Y 25695:Fish KW - D 04672:Mammals KW - R 18059:Feeding UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15484698?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chemical+Ecology&rft.atitle=Effects+of+predator+fecal+odors+on+feed+selection+by+sheep+and+cattle.&rft.au=Pfister%2C+JA%3BMueller-Schwarze%2C+D%3BBalph%2C+D+F&rft.aulast=Pfister&rft.aufirst=JA&rft.date=1990-01-01&rft.volume=16&rft.issue=2&rft.spage=573&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chemical+Ecology&rft.issn=00980331&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-12 N1 - SubjectsTermNotLitGenreText - predators; feces ER - TY - JOUR T1 - Variation in expression of monogenic resistance in corn to Exserohilum turcicum race 3 under different temperature and light regimes. AN - 15482608; 2215443 AB - Expression of monogenic resistance in near-isogenic corn inbred lines H4460Ht sub(1), H4460Ht sub(2), and H4460Ht sub(3) against isolates of races 1 and 3 of Exserohilum turcicum) was determined under different temperature and light intensity regimes. These environmental conditions influenced lesion type, number, length, and sporulation of the fungus. In general, isolates of E. turcicum produced more lesions at 22/18 than at 26/22 C and more lesions at 162 or 324 than at 647 mu mol m super(-2) s super(-1) at 22/18 C. Lesions also were larger (P = 0.05) at the reduced light intensities. Virulence of three races of E. turcicum was clearly expressed and consistent with earlier reports at 22/18 C day/night temperature and low light intensity (324 or 162 mu mol m super(-2) s super(-1)), but inconsistencies arose at 26/22 C day/night temperature and 647 mu mol m super(-2) s super(-1) light intensity. JF - Phytopathology AU - Leath, S AU - Thakur, R P AU - Leonard, K J AD - USDA-ARS, Dep. Plant Pathol., Box 7616, North Carolina State Univ., Raleigh, NC 27695-7616, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 309 EP - 313 VL - 80 IS - 3 SN - 0331-949X, 0331-949X KW - northern leaf blight KW - effects on KW - temperature KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - disease resistance KW - light intensity KW - Zea mays KW - Exserohilum turcicum KW - K 03089:Fungi: plant KW - A 01026:Gramineous crops UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15482608?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Phytopathology&rft.atitle=Variation+in+expression+of+monogenic+resistance+in+corn+to+Exserohilum+turcicum+race+3+under+different+temperature+and+light+regimes.&rft.au=Leath%2C+S%3BThakur%2C+R+P%3BLeonard%2C+K+J&rft.aulast=Leath&rft.aufirst=S&rft.date=1990-01-01&rft.volume=80&rft.issue=3&rft.spage=309&rft.isbn=&rft.btitle=&rft.title=Phytopathology&rft.issn=0331949X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-12 N1 - SubjectsTermNotLitGenreText - Exserohilum turcicum; Zea mays; disease resistance; light intensity ER - TY - JOUR T1 - Molecular and genetic characterization of two pollen-expressed genes that have sequence similarity to pectate lyases of the plant pathogen Erwinia . AN - 15459242; 2193315 AB - A set of cDNAs that are expressed in tomato anthers were isolated. We further characterized two of these cDNAs (LAT56 and LAT59 ) and their corresponding genomic clones. LAT56 and LAT69 show low levels of steady-state mRNA in immature anthers and maximal levels in mature anthers and pollen. The LAT56 and LAT59 genes are single-copy in the tomato genome, and are linked on chromosome 3, approximately 5 cM apart. Although these cDNAs did not cross-hybridize, their deduced protein sequences (P56 and P59) have 54% amino acid identity. JF - Plant Molecular Biology AU - Wing, R A AU - Yamaguchi, J AU - Larabell, S K AU - Ursin, V M AU - McCormick, S AD - Plant Gene Expression Cent., USDA/ARS-UC-Berkeley, 800 Buchanan St., Albany, CA 94710, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 17 EP - 28 VL - 14 IS - 1 SN - 0167-4412, 0167-4412 KW - LAT56 gene KW - LAT59 gene KW - Lycopersicon esculentum KW - amino acid sequence KW - gene products KW - genes KW - nucleotide sequence KW - predictions KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Genetics Abstracts; Biochemistry Abstracts 2: Nucleic Acids KW - N 14640:Structure & sequence KW - G 07355:GENERAL) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15459242?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Plant+Molecular+Biology&rft.atitle=Molecular+and+genetic+characterization+of+two+pollen-expressed+genes+that+have+sequence+similarity+to+pectate+lyases+of+the+plant+pathogen+Erwinia+.&rft.au=Wing%2C+R+A%3BYamaguchi%2C+J%3BLarabell%2C+S+K%3BUrsin%2C+V+M%3BMcCormick%2C+S&rft.aulast=Wing&rft.aufirst=R&rft.date=1990-01-01&rft.volume=14&rft.issue=1&rft.spage=17&rft.isbn=&rft.btitle=&rft.title=Plant+Molecular+Biology&rft.issn=01674412&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Variation in response of Norway maple cultivars to Verticillium dahliae . AN - 15448818; 2179816 AB - Significant variation in foliar symptoms and crown dieback was observed over 16 mo among 13 cultivars of grafted Norway maples after stem inoculation with Verticillium dahliae . Cultivars Jade Glen and Parkway showed the fewest symptoms and Crimson King and Greenlace the most, with wide variation among the other cultivars. In a second study, six of the same 13 cultivars were propagated on their own roots and root-inoculated with the fungus. Crimson King and Greenlace again showed high susceptibility, with high mortality (as much as 80%) and/or incidence of foliar symptoms. The cultivars expressing the greatest tolerance (fewest symptoms and lowest mortality) to root inoculation were also the most tolerant of stem inoculation. JF - Plant Disease AU - Townsend, A M AU - Schreiber, L R AU - Hall, T J AU - Bentz, SE AD - U.S. Natl. Arbor., USDA-ARS, Washington, DC 20002, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 44 EP - 46 VL - 74 IS - 1 SN - 0191-2917, 0191-2917 KW - Acer platanoides KW - cultivars KW - variability KW - susceptibility KW - tolerance KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - dieback KW - foliar diseases KW - Verticillium dahliae KW - K 03089:Fungi: plant KW - A 01045:Diseases & treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15448818?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Plant+Disease&rft.atitle=Variation+in+response+of+Norway+maple+cultivars+to+Verticillium+dahliae+.&rft.au=Townsend%2C+A+M%3BSchreiber%2C+L+R%3BHall%2C+T+J%3BBentz%2C+SE&rft.aulast=Townsend&rft.aufirst=A&rft.date=1990-01-01&rft.volume=74&rft.issue=1&rft.spage=44&rft.isbn=&rft.btitle=&rft.title=Plant+Disease&rft.issn=01912917&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-12 N1 - SubjectsTermNotLitGenreText - Verticillium dahliae; foliar diseases; dieback ER - TY - JOUR T1 - Influence of seeding rate and interplanting with tall fescue on virus infection of white clover. AN - 15448249; 2179866 AB - The effect of white clover seeding rate and tall fescue seeding method on virus infection of while clover were determined in field plots during 1986 and 1987. Incidence of peanut stunt virus (PSV) in the cultivar Regal in July and November 1986 was greater where clover had been sown at 0.56 kg/ha than where it had been sown at 1.68 or 3.36 kg/ha. Clover yield measured after virus sampling of plots sown at the two higher rates was similar and was greater than that of plots sown at the lowest rate. Although clover yield in July 1987 was similar across clover seeding rates, incidence of PSV decreased as seeding rates increased. Incidence of white clover mosaic virus (WCMV) was lower and that of alfalfa mosaic virus (AMV) was higher in 1987 at successively greater seeding rates. JF - Plant Disease AU - Brink, GE AU - McLaughlin, M R AD - USDA-ARS-CSRL, Forage Res. Unit, Mississippi State, MS 39762, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 51 EP - 53 VL - 74 IS - 1 SN - 0191-2917, 0191-2917 KW - Trifolium repens KW - infection KW - effects on KW - incidence KW - Acremonium coenophialum KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Virology & AIDS Abstracts KW - crop production (intercropping) KW - alfalfa mosaic virus KW - peanut stunt virus KW - white clover mosaic virus KW - seeding rate KW - A 01025:Leguminous crops KW - V 22185:Field infections UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15448249?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Plant+Disease&rft.atitle=Influence+of+seeding+rate+and+interplanting+with+tall+fescue+on+virus+infection+of+white+clover.&rft.au=Brink%2C+GE%3BMcLaughlin%2C+M+R&rft.aulast=Brink&rft.aufirst=GE&rft.date=1990-01-01&rft.volume=74&rft.issue=1&rft.spage=51&rft.isbn=&rft.btitle=&rft.title=Plant+Disease&rft.issn=01912917&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-12 N1 - SubjectsTermNotLitGenreText - white clover mosaic virus; alfalfa mosaic virus; peanut stunt virus; seeding rate; crop production (intercropping) ER - TY - JOUR T1 - Use of staining and inhibitors to separate fungal and bacterial activity in soil. AN - 15444064; 2178549 AB - The relative contribution of two major soil microbial groups, fungi and bacteria, to soil respiration was investigated because of their importance in decomposition and nutrient cycling in agroecosystems. The bactericide streptomycin and the fungicide cycloheximide were applied singly and in combination in two glucose-amended (5 g kg super(-1) soil) and texturally differing agricultural soils, a Valentine sand (Typic Ustipsamment) and a Sharpsburg silty clay loam (Typic Argiudoll). Total and metabolically-active fungal and bacterial microscopic counts were made at 1, 3 and 10 days after amendment. CO sub(2) evolution was measured for 24 h before each sampling for the purpose of relating soil respiration to specific microbial metabolic activity. Intracellular reduction of iodonitrotetrazolium to formazan and accumulation of fluorescein from fluorescein diacetate were used as indicators of metabolically-active bacteria and fungi, respectively. For these experimental conditions the use of biocides alone did not effectively differentiate between bacterial and fungal activity. Selective staining of metabolically-active microorganisms, however, may offer promise on achieving this goal and appears useful in understanding the importance of bacteria and fungi to nutrient cycling in soil ecosystems. JF - Soil Biology and Biochemistry AU - Stamatiadis, S AU - Doran, J W AU - Ingham, E R AD - USDA, ARS, Lincoln, NE 68583, USA Y1 - 1990 PY - 1990 DA - 1990 SP - 81 EP - 88 VL - 22 IS - 1 SN - 0038-0717, 0038-0717 KW - inhibition KW - activity KW - separation KW - soil microorganisms KW - selective KW - streptomycin KW - cycloheximide KW - Ecology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - respiration KW - biomass KW - fungi KW - staining KW - bacteria KW - soil KW - K 03095:Soil KW - A 01047:General KW - D 04623:Fungi KW - D 04001:Methodology - general KW - J 02901:Soil and plants KW - D 04600:Soil KW - D 04620:Microorganisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15444064?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Biology+and+Biochemistry&rft.atitle=Use+of+staining+and+inhibitors+to+separate+fungal+and+bacterial+activity+in+soil.&rft.au=Stamatiadis%2C+S%3BDoran%2C+J+W%3BIngham%2C+E+R&rft.aulast=Stamatiadis&rft.aufirst=S&rft.date=1990-01-01&rft.volume=22&rft.issue=1&rft.spage=81&rft.isbn=&rft.btitle=&rft.title=Soil+Biology+and+Biochemistry&rft.issn=00380717&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-12 N1 - SubjectsTermNotLitGenreText - fungi; bacteria; soil; respiration; staining; biomass ER - TY - JOUR T1 - Nitrate-nitrogen concentrations in percolate from lysimeters planted to a legume-grass mixture AN - 13747679; 199003958 AB - In view of the concern for groundwater quality under crops receiving nitrogen fertilizers, 2 Coshocton monolith lysimeters containing a well-drained silt loam soil on a 13 per cent slope, and 4 lysimeters containing moderately well-drained silt loam soil on a 6 per cent slope,were used to study the effects of a legume-grass mixture on groundwater quality. Growing corn (Zea mays L.), some of which received high rates of nitrogen-fertilizer application, produced nitrate-nitrogen concentrations in percolate ranging from 15-40 mg per litre. Alfaifa-orchard grass mix (70 per cent Medicago sativa L. and 30 per cent Dactylis glomerata L.) produced leachate nitrate-nitrogen concentrations less than 5 mg per litre especially on moderately well-drained lysimeters. Highest nitrate-nitrogen levels occurred during winter/early spring for all treatments. The importance of legumes in crop rotations was discussed in the light of their impact on groundwater nitrate concentrations. JF - Journal of Environmental Quality AU - Owens, L B AD - USDA-ARS, North Appalachian Experimental Watershed, Ohio Y1 - 1990 PY - 1990 DA - 1990 SP - 131 EP - 135 VL - 19 IS - 1 SN - 0047-2425, 0047-2425 KW - Fruit and vegetable crops (legumes) KW - Plants (see also aquatic macrophytes, grps below) KW - Aqualine Abstracts KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13747679?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Nitrate-nitrogen+concentrations+in+percolate+from+lysimeters+planted+to+a+legume-grass+mixture&rft.au=Owens%2C+L+B&rft.aulast=Owens&rft.aufirst=L&rft.date=1990-01-01&rft.volume=19&rft.issue=1&rft.spage=131&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - SuppNotes - Publication focus: Case Study. N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Division S-6 - soil & water management & conservation: soil tilth: a review of past perceptions and future needs AN - 13746832; 199003917 AB - The historical perception of soil tilth is reviewed. Soil tilth research from the 1930s is described: effects of crop rotation, tillage and fertilization. Since 1955 tilth research in the U.S.A. focused on compaction relationships and soil physical properties. Soil research needs are outlined. Relationships between tilth, surface and groundwater quality, soil erosion, productivity and long-term sustainability are discussed. Soil research projects in Canada, Europe, U.S.S.R., India and Thailand are described. There are 77 references. JF - Soil Science Society of America Journal AU - Karlen, D L AU - Erbach, D C AU - Kaspar, T C AU - Colvin, T S AU - Berry, E C AU - Timmons, D AD - USDA-ARS, Ames, Iowa, U.S.A. Y1 - 1990 PY - 1990 DA - 1990 SP - 153 EP - 161 VL - 54 IS - 1 SN - 0361-5995, 0361-5995 KW - Aqualine Abstracts KW - AQ 00001:Water Resources and Supplies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13746832?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Division+S-6+-+soil+%26amp%3B+water+management+%26amp%3B+conservation%3A+soil+tilth%3A+a+review+of+past+perceptions+and+future+needs&rft.au=Karlen%2C+D+L%3BErbach%2C+D+C%3BKaspar%2C+T+C%3BColvin%2C+T+S%3BBerry%2C+E+C%3BTimmons%2C+D&rft.aulast=Karlen&rft.aufirst=D&rft.date=1990-01-01&rft.volume=54&rft.issue=1&rft.spage=153&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Tillage and fertilizer effects on water infiltration AN - 13743472; S199134836 AB - Infiltration rates were measured in 3 long-term tillage treatments (moldboard plow, offset disk and subsurface sweep) with 2 fertilizer levels (45 or 180 kg nitrogen per ha applied since 1962). Bulk density measurements showed that all tillages had a well defined compacted zone. The maximal bulk density for the disk, sweep and plow treatments occurred at depths of 11, 18 and 22 cm respectively. Final infiltration rates for the 3 tillages were 14, 16 and 17 mm per h respectively. Two-way analysis of variance showed that there was no significant difference in final infiltration rate between tillage treatments but there was a highly significant difference between nitrogen treatments. Soil sealing by rain impact and soil frost were more important than the tillage pan in controlling the infiltration capacity. JF - Soil Science Society of America Journal AU - Zuzel, J F AU - Pikul, J L AU - Rasmussen, P E AD - USDA-ARS, Pendleton, Ore. Y1 - 1990 PY - 1990 DA - 1990 SP - 205 EP - 208 VL - 54 IS - 1 SN - 0361-5995, 0361-5995 KW - Aqualine Abstracts KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13743472?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Tillage+and+fertilizer+effects+on+water+infiltration&rft.au=Zuzel%2C+J+F%3BPikul%2C+J+L%3BRasmussen%2C+P+E&rft.aulast=Zuzel&rft.aufirst=J&rft.date=1990-01-01&rft.volume=54&rft.issue=1&rft.spage=205&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Modelling soluble chemical transfer to runoff with rainfall impact as a diffusion process AN - 13742050; S199134884 AB - The transfer of chemicals from soil solution to surface runoff through rainfall impact was modelled as an accelerated diffusion process. The applicability of diffusion equations to describe the transfer of a chemical from soil to runoff was investigated using finite difference numerical solutions. Experimental data on the transfer of bromine solution to runoff from 3 soils, with and without infiltration, were used. The numerical solutions were then applied in an investigation of the effect of increasing diffusion coefficients and infiltration rates on the transfer of a soil-adsorbed chemical to runoff. The effect of this transfer on the shape and magnitude of a surface-applied chemical pulse moving downward in the soil was also studied. There are 31 references. JF - Soil Science Society of America Journal AU - Ahuja, L R AD - USDA-ARS, Durant, Okla. Y1 - 1990 PY - 1990 DA - 1990 SP - 312 EP - 321 VL - 54 IS - 2 SN - 0361-5995, 0361-5995 KW - Modelling (-general-) KW - Aqualine Abstracts KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13742050?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Modelling+soluble+chemical+transfer+to+runoff+with+rainfall+impact+as+a+diffusion+process&rft.au=Ahuja%2C+L+R&rft.aulast=Ahuja&rft.aufirst=L&rft.date=1990-01-01&rft.volume=54&rft.issue=2&rft.spage=312&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Analysis of infiltration through a 2-layer soil profile AN - 13740505; S199137130 AB - One-dimensional infiltration through 2-layered soil systems, including the surface crust case, was studied by analysing the results from numerical experiments in terms of the relationship between infiltrability and infiltrated water in homogeneous soils. The infiltrability relation was a robust unification of the constant saturation and flux upper boundary conditions for homogeneous profiles. Numerical solution of the Richard equation for a variety of changes in hydraulic properties, including ponding, supported the extension of integral soil measures to characterize infiltration into layered soils, demonstrating the generality of the analytical infiltration model. With appropriate approximation, the infiltration rate-infiltered depth curve could be used to estimate the hydrological effects of crust formation in agricultural soils. JF - Soil Science Society of America Journal AU - Smith, R E AD - USDA-ARS, Fort Collins, Colo. Y1 - 1990 PY - 1990 DA - 1990 SP - 1219 EP - 1227 VL - 54 IS - 5 SN - 0361-5995, 0361-5995 KW - Analysis KW - Modelling (-general-) KW - Unifying KW - Aqualine Abstracts KW - AQ 00001:Water Resources and Supplies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13740505?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Analysis+of+infiltration+through+a+2-layer+soil+profile&rft.au=Smith%2C+R+E&rft.aulast=Smith&rft.aufirst=R&rft.date=1990-01-01&rft.volume=54&rft.issue=5&rft.spage=1219&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Runoff of sulfometuron-methyl and cyanazine from small plots: effects of formulation and grass cover AN - 13740259; S199134798 AB - To examine the effects of herbicide formulation, under moderate rainfall intensities, on runoff losses of 2 herbicides (cyanazine and sulfometuron-methyl), suspension concentrate (SC) and dispersible granule (DG) formulations of cyanazine and SC and emulsifiable concentrate (EC) formulations of sulfometuron-methyl were applied in combinations to plots of grass. Bare plots were used as controls. Rainfall events (69 mm per h intensity) were simulated on the day following herbicide application. The runoff was analysed for sediment and herbicides. Control plots required one-third less rain to produce the same amount of runoff and yielded twice as much sediment as the grassy plots. Losses of all formulations were 1 to 2 per cent of the amounts applied regardless of grass cover and application rates of cyanazine (4.5 Kg per ha) and sulfometuron-methyl (0.4 Kg per ha). Total losses of all formulations were dependent on the time lag between rainfall initiation and runoff initiation. For these formulations losses of herbicides were a constant fraction of the amount applied, with or without grass cover. JF - Journal of Environmental Quality AU - Wauchope, R D AU - Williams, R G AU - Marti, L R AD - USDA-ARS Southeast Watershed Research Laboratory, Tifton, Ga. Y1 - 1990 PY - 1990 DA - 1990 SP - 119 EP - 125 VL - 19 IS - 1 SN - 0047-2425, 0047-2425 KW - Analysis KW - European communities KW - Modelling (-general-) KW - Naked KW - Aqualine Abstracts KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13740259?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Runoff+of+sulfometuron-methyl+and+cyanazine+from+small+plots%3A+effects+of+formulation+and+grass+cover&rft.au=Wauchope%2C+R+D%3BWilliams%2C+R+G%3BMarti%2C+L+R&rft.aulast=Wauchope&rft.aufirst=R&rft.date=1990-01-01&rft.volume=19&rft.issue=1&rft.spage=119&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Long-term swine lagoon effluent applications on 'coastal' bermudagrass: I. Yield, quality and element removal AN - 13738213; S199137468 AB - Coastal bermudagrass plots were treated with swine lagoon effluent with nitrogen loading rates of 335, 670 or 1340 kg nitrogen per ha.year for 11 years. Dry matter yields were depressed after bad winters but the strong rhizome and stolon morphology ensured recovery by midsummer. By the end of year 11 dry matter yields were altered by effluent loading rates with greater production from the 670 and 1340 kg nitrogen per ha.year loadings (19.0 and 19.6 magnesium per ha respectively) compared with 335 kg nitrogen per ha.year treatment (13.1 Mg magnesium per ha). Effluent application at 670 and 1340 nitrogen per ha.year increased nitrogen, phosphorus, potassium, calcium, magnesium, sulphur, chlorine, copper and zinc concentrations. In vitro dry matter disappearance of the forage was similar among all loading rates in 1983. The highest loading rate produced unstable stands and by 1983 nitrate concentrations approached or exceeded the toxicity threshold (3.0 g per kg) in the summer harvests. There are 31 references. JF - Journal of Environmental Quality AU - Burns, J C AU - King, L D AU - Westerman, P W AD - USDA-ARS Y1 - 1990 PY - 1990 DA - 1990 SP - 749 EP - 756 VL - 19 IS - 4 SN - 0047-2425, 0047-2425 KW - Effluent (treated) (see also sewage works effluent) KW - Aqualine Abstracts KW - AQ 00008:Effects of Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13738213?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Long-term+swine+lagoon+effluent+applications+on+%27coastal%27+bermudagrass%3A+I.+Yield%2C+quality+and+element+removal&rft.au=Burns%2C+J+C%3BKing%2C+L+D%3BWesterman%2C+P+W&rft.aulast=Burns&rft.aufirst=J&rft.date=1990-01-01&rft.volume=19&rft.issue=4&rft.spage=749&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Mapping impervious cover using Landsat TM data AN - 13723789; S199239641 AB - The impervious cover of an increasingly urbanized catchment near Fort Worth was assessed by traditional aerial photography and land based methods, and compared with results from satellite observations. Landsat TM data from January 1985 were processed by a DIGITAL PDP 1134 earthview image processing system. Winter was chosen to avoid complications from foliage. Areas were classified into bare soil water, vegetation, impervious cover and verified for sample areas. The accuracy for impervious cover estimation was 85.1 per cent and 75 per cent for water. The poorer performance for water was ascribed to its relatively small area in the catchment. The method was especially valuable for remote areas; the data could be stored as digital maps and used to assess surface water runoff. JF - Journal of Soil & Water Conservation AU - Plunk, DE AU - Morgan, K AU - Newland, L AD - Soil Conservation Service National Cartographic Center, Fort Worth, Tex. Y1 - 1990 PY - 1990 DA - 1990 SP - 589 EP - 591 VL - 45 IS - 5 KW - Pdp KW - 1134 KW - Naked KW - Aqualine Abstracts KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13723789?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Soil+%26+Water+Conservation&rft.atitle=Mapping+impervious+cover+using+Landsat+TM+data&rft.au=Plunk%2C+DE%3BMorgan%2C+K%3BNewland%2C+L&rft.aulast=Plunk&rft.aufirst=DE&rft.date=1990-01-01&rft.volume=45&rft.issue=5&rft.spage=589&rft.isbn=&rft.btitle=&rft.title=Journal+of+Soil+%26+Water+Conservation&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - SuppNotes - Publication focus: Application. N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Spatial and temporal influence of soil frost on infiltration and erosion of sagebrush rangelands AN - 13722011; S199239347 AB - Infiltration and interrill erosion were measured for a sagebrush-grass community on the Reynolds creek experimental watershed, Idaho, during winter, springtime and summer 1989. Shrub coppice dune and dune interspace soils exhibited significant spatial and temporal differences in infiltration capacity and interrill erosion, with a year-long higher infiltration capacity found in coppice dune soils. Both soils exhibited their lowest infiltration capacities in winter /early springtime when the soil was frozen or saturated. Coppice dune soils displayed consistently lower interrill erosion (3500 to 4000 kg per ha) during a 19 d period in late winter when diurnal freeze-thaw cycles, saturated surface soil and soil slaking occurred. JF - Water Resources Bulletin AU - Blackburn, W H AU - Pierson, F B AU - Seyfried AD - USDA-Agricultural Research Service, Boise, Idaho Y1 - 1990 PY - 1990 DA - 1990 SP - 991 EP - 996 VL - 26 IS - 6 SN - 0043-1370, 0043-1370 KW - Freezing KW - Spatial KW - Aqualine Abstracts KW - AQ 00001:Water Resources and Supplies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13722011?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Bulletin&rft.atitle=Spatial+and+temporal+influence+of+soil+frost+on+infiltration+and+erosion+of+sagebrush+rangelands&rft.au=Blackburn%2C+W+H%3BPierson%2C+F+B%3BSeyfried&rft.aulast=Blackburn&rft.aufirst=W&rft.date=1990-01-01&rft.volume=26&rft.issue=6&rft.spage=991&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Bulletin&rft.issn=00431370&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - SuppNotes - Publication focus: Experimental. N1 - Last updated - 2011-12-12 ER -