Various levels of cross-resistance to Bacillus sphaericus strains in Culex pipiens (Diptera : Culicidae) colonies resistant to B. sphaericus strain 2362
We studied the cross-resistance to three highly toxic Bacillus sphaericus strains, IAB-59 (serotype H6), IAB-881 (serotype H3), and IAB-872 (serotype H48), of four colonies of the Culex pipiens complex resistant to B. sphaericus 2362 and 1593, both of which are serotype H5a5b strains. Two field-sele...
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creator | NIELSEN-LEROUX, Christina RAGHUNATHA RAO, D JITTAWADEE RODCHAROEN MURPHY CARRON, Alexandre MANI, T. R HAMON, Sylviane MULLA, Mir S |
description | We studied the cross-resistance to three highly toxic Bacillus sphaericus strains, IAB-59 (serotype H6), IAB-881 (serotype H3), and IAB-872 (serotype H48), of four colonies of the Culex pipiens complex resistant to B. sphaericus 2362 and 1593, both of which are serotype H5a5b strains. Two field-selected highly resistant colonies originating from India (KOCHI, 17,000-fold resistance) and France (SPHAE, 23,000-fold resistance) and a highly resistant laboratory-selected colony from California (GeoR, 36,000-fold resistance) showed strong cross-resistance to strains IAB-881 and IAB-872 but significantly weaker cross-resistance to IAB-59 (3- to 43-fold resistance). In contrast, a laboratory-selected California colony with low-level resistance (JRMM-R, 5-fold resistance) displayed similar levels of resistance (5- to 10-fold) to all of the B. sphaericus strains tested. Thus, among the mosquitocidal strains of B. sphaericus we identified a strain, IAB-59, which was toxic to several Culex colonies that were highly resistant to commercial strains 2362 and 1593. Our analysis also indicated that strain IAB-59 may possess other larvicidal factors. These results could have important implications for the development of resistance management strategies for area-wide mosquito control programs based on the use of B. sphaericus preparations. |
doi_str_mv | 10.1128/AEM.67.11.5049-5054.2001 |
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R ; HAMON, Sylviane ; MULLA, Mir S</creator><creatorcontrib>NIELSEN-LEROUX, Christina ; RAGHUNATHA RAO, D ; JITTAWADEE RODCHAROEN MURPHY ; CARRON, Alexandre ; MANI, T. R ; HAMON, Sylviane ; MULLA, Mir S</creatorcontrib><description>We studied the cross-resistance to three highly toxic Bacillus sphaericus strains, IAB-59 (serotype H6), IAB-881 (serotype H3), and IAB-872 (serotype H48), of four colonies of the Culex pipiens complex resistant to B. sphaericus 2362 and 1593, both of which are serotype H5a5b strains. Two field-selected highly resistant colonies originating from India (KOCHI, 17,000-fold resistance) and France (SPHAE, 23,000-fold resistance) and a highly resistant laboratory-selected colony from California (GeoR, 36,000-fold resistance) showed strong cross-resistance to strains IAB-881 and IAB-872 but significantly weaker cross-resistance to IAB-59 (3- to 43-fold resistance). In contrast, a laboratory-selected California colony with low-level resistance (JRMM-R, 5-fold resistance) displayed similar levels of resistance (5- to 10-fold) to all of the B. sphaericus strains tested. Thus, among the mosquitocidal strains of B. sphaericus we identified a strain, IAB-59, which was toxic to several Culex colonies that were highly resistant to commercial strains 2362 and 1593. Our analysis also indicated that strain IAB-59 may possess other larvicidal factors. These results could have important implications for the development of resistance management strategies for area-wide mosquito control programs based on the use of B. sphaericus preparations.</description><identifier>ISSN: 0099-2240</identifier><identifier>EISSN: 1098-5336</identifier><identifier>DOI: 10.1128/AEM.67.11.5049-5054.2001</identifier><identifier>PMID: 11679325</identifier><identifier>CODEN: AEMIDF</identifier><language>eng</language><publisher>Washington, DC: American Society for Microbiology</publisher><subject>Animals ; Bacillus - classification ; Bacillus - metabolism ; Bacillus sphaericus ; Bacteria ; Bacterial Toxins - metabolism ; Bacterial Toxins - toxicity ; Biological and medical sciences ; Biological control ; Brackish ; Control ; Culex - drug effects ; Culex - microbiology ; Culex - physiology ; Culex pipiens ; Culicidae ; Freshwater ; Fundamental and applied biological sciences. Psychology ; Genetics ; Insecticide Resistance ; Insecticides ; Invertebrate Microbiology ; Larva - drug effects ; Mosquitoes ; Pest Control, Biological ; Phytopathology. Animal pests. Plant and forest protection ; Protozoa. Invertebrates</subject><ispartof>Applied and environmental microbiology, 2001-11, Vol.67 (11), p.5049-5054</ispartof><rights>2002 INIST-CNRS</rights><rights>Copyright American Society for Microbiology Nov 2001</rights><rights>Copyright © 2001, American Society for Microbiology 2001</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c502t-85753f9769b421e06edad93aa9776e3460ebd07e208c9ad194352e281640ee223</citedby><cites>FETCH-LOGICAL-c502t-85753f9769b421e06edad93aa9776e3460ebd07e208c9ad194352e281640ee223</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC93270/pdf/$$EPDF$$P50$$Gpubmedcentral$$H</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC93270/$$EHTML$$P50$$Gpubmedcentral$$H</linktohtml><link.rule.ids>230,314,723,776,780,881,3175,27901,27902,53766,53768</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=14149043$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/11679325$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>NIELSEN-LEROUX, Christina</creatorcontrib><creatorcontrib>RAGHUNATHA RAO, D</creatorcontrib><creatorcontrib>JITTAWADEE RODCHAROEN MURPHY</creatorcontrib><creatorcontrib>CARRON, Alexandre</creatorcontrib><creatorcontrib>MANI, T. R</creatorcontrib><creatorcontrib>HAMON, Sylviane</creatorcontrib><creatorcontrib>MULLA, Mir S</creatorcontrib><title>Various levels of cross-resistance to Bacillus sphaericus strains in Culex pipiens (Diptera : Culicidae) colonies resistant to B. sphaericus strain 2362</title><title>Applied and environmental microbiology</title><addtitle>Appl Environ Microbiol</addtitle><description>We studied the cross-resistance to three highly toxic Bacillus sphaericus strains, IAB-59 (serotype H6), IAB-881 (serotype H3), and IAB-872 (serotype H48), of four colonies of the Culex pipiens complex resistant to B. sphaericus 2362 and 1593, both of which are serotype H5a5b strains. Two field-selected highly resistant colonies originating from India (KOCHI, 17,000-fold resistance) and France (SPHAE, 23,000-fold resistance) and a highly resistant laboratory-selected colony from California (GeoR, 36,000-fold resistance) showed strong cross-resistance to strains IAB-881 and IAB-872 but significantly weaker cross-resistance to IAB-59 (3- to 43-fold resistance). In contrast, a laboratory-selected California colony with low-level resistance (JRMM-R, 5-fold resistance) displayed similar levels of resistance (5- to 10-fold) to all of the B. sphaericus strains tested. Thus, among the mosquitocidal strains of B. sphaericus we identified a strain, IAB-59, which was toxic to several Culex colonies that were highly resistant to commercial strains 2362 and 1593. Our analysis also indicated that strain IAB-59 may possess other larvicidal factors. These results could have important implications for the development of resistance management strategies for area-wide mosquito control programs based on the use of B. sphaericus preparations.</description><subject>Animals</subject><subject>Bacillus - classification</subject><subject>Bacillus - metabolism</subject><subject>Bacillus sphaericus</subject><subject>Bacteria</subject><subject>Bacterial Toxins - metabolism</subject><subject>Bacterial Toxins - toxicity</subject><subject>Biological and medical sciences</subject><subject>Biological control</subject><subject>Brackish</subject><subject>Control</subject><subject>Culex - drug effects</subject><subject>Culex - microbiology</subject><subject>Culex - physiology</subject><subject>Culex pipiens</subject><subject>Culicidae</subject><subject>Freshwater</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Genetics</subject><subject>Insecticide Resistance</subject><subject>Insecticides</subject><subject>Invertebrate Microbiology</subject><subject>Larva - drug effects</subject><subject>Mosquitoes</subject><subject>Pest Control, Biological</subject><subject>Phytopathology. Animal pests. Plant and forest protection</subject><subject>Protozoa. 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Psychology</topic><topic>Genetics</topic><topic>Insecticide Resistance</topic><topic>Insecticides</topic><topic>Invertebrate Microbiology</topic><topic>Larva - drug effects</topic><topic>Mosquitoes</topic><topic>Pest Control, Biological</topic><topic>Phytopathology. Animal pests. Plant and forest protection</topic><topic>Protozoa. Invertebrates</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>NIELSEN-LEROUX, Christina</creatorcontrib><creatorcontrib>RAGHUNATHA RAO, D</creatorcontrib><creatorcontrib>JITTAWADEE RODCHAROEN MURPHY</creatorcontrib><creatorcontrib>CARRON, Alexandre</creatorcontrib><creatorcontrib>MANI, T. 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R</au><au>HAMON, Sylviane</au><au>MULLA, Mir S</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Various levels of cross-resistance to Bacillus sphaericus strains in Culex pipiens (Diptera : Culicidae) colonies resistant to B. sphaericus strain 2362</atitle><jtitle>Applied and environmental microbiology</jtitle><addtitle>Appl Environ Microbiol</addtitle><date>2001-11-01</date><risdate>2001</risdate><volume>67</volume><issue>11</issue><spage>5049</spage><epage>5054</epage><pages>5049-5054</pages><issn>0099-2240</issn><eissn>1098-5336</eissn><coden>AEMIDF</coden><abstract>We studied the cross-resistance to three highly toxic Bacillus sphaericus strains, IAB-59 (serotype H6), IAB-881 (serotype H3), and IAB-872 (serotype H48), of four colonies of the Culex pipiens complex resistant to B. sphaericus 2362 and 1593, both of which are serotype H5a5b strains. Two field-selected highly resistant colonies originating from India (KOCHI, 17,000-fold resistance) and France (SPHAE, 23,000-fold resistance) and a highly resistant laboratory-selected colony from California (GeoR, 36,000-fold resistance) showed strong cross-resistance to strains IAB-881 and IAB-872 but significantly weaker cross-resistance to IAB-59 (3- to 43-fold resistance). In contrast, a laboratory-selected California colony with low-level resistance (JRMM-R, 5-fold resistance) displayed similar levels of resistance (5- to 10-fold) to all of the B. sphaericus strains tested. Thus, among the mosquitocidal strains of B. sphaericus we identified a strain, IAB-59, which was toxic to several Culex colonies that were highly resistant to commercial strains 2362 and 1593. Our analysis also indicated that strain IAB-59 may possess other larvicidal factors. These results could have important implications for the development of resistance management strategies for area-wide mosquito control programs based on the use of B. sphaericus preparations.</abstract><cop>Washington, DC</cop><pub>American Society for Microbiology</pub><pmid>11679325</pmid><doi>10.1128/AEM.67.11.5049-5054.2001</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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subjects | Animals Bacillus - classification Bacillus - metabolism Bacillus sphaericus Bacteria Bacterial Toxins - metabolism Bacterial Toxins - toxicity Biological and medical sciences Biological control Brackish Control Culex - drug effects Culex - microbiology Culex - physiology Culex pipiens Culicidae Freshwater Fundamental and applied biological sciences. Psychology Genetics Insecticide Resistance Insecticides Invertebrate Microbiology Larva - drug effects Mosquitoes Pest Control, Biological Phytopathology. Animal pests. Plant and forest protection Protozoa. Invertebrates |
title | Various levels of cross-resistance to Bacillus sphaericus strains in Culex pipiens (Diptera : Culicidae) colonies resistant to B. sphaericus strain 2362 |
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