Susceptibility and Selectivity of Cnaphalocrocis medinalis (Lepidoptera: Pyralidae) to Different Cry Toxins
Effectiveness of four Cry toxins (Cry1Ac, Cry1Aa, Cry1Ab, and Cry1C) on Cnaphalocrocis medinalis (Guenée) (Lepidoptera: Pyralidae), collected from paddy fields in Jiaxing, Zhejiang Province, China, was evaluated in the laboratory. Bioassays showed that C. medinalis had different susceptibilities aga...
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| Veröffentlicht in: | Journal of economic entomology 2012-12, Vol.105 (6), p.2122-2128 |
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| creator | Yang, Yajun Xu, Hongxing Zheng, Xusong Lu, Zhongxian |
| description | Effectiveness of four Cry toxins (Cry1Ac, Cry1Aa, Cry1Ab, and Cry1C) on Cnaphalocrocis medinalis (Guenée) (Lepidoptera: Pyralidae), collected from paddy fields in Jiaxing, Zhejiang Province, China, was evaluated in the laboratory. Bioassays showed that C. medinalis had different susceptibilities against four Cry toxins. The LC50 values of Cry1Ac, Cry1Ab, Cry1Aa, and Cry1C against C. medinalis were 0.405, 1.111, 1.939, and 1.246 µg/ml, respectively. Furthermore, the mortality of C. medinalis against different Cry toxins showed different results over time and LT50 values of Cry1Ac, Cry1Ab, Cry1Aa, and Cry1C against C. medinalis were 1.5, 2.3, 1.6, and 2.2 d, respectively. Preference of the larvae to Cry toxins revealed that C. medinalis larvae had no significant feeding preference on leaves without Bacillus thuringiensis (Bacillales: Bacillaceae; [Bt]) toxin compared with those containing Bt toxin. However, different Cry toxins had different attractive abilities to C. medinalis larvae. During 8 h after infestation, C. medinalis larvae preferred the leaves with Cry1Ab (22.4–27.6%) over those with Cry1Ac or Cry1C. |
| doi_str_mv | 10.1603/EC12236 |
| format | Article |
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Bioassays showed that C. medinalis had different susceptibilities against four Cry toxins. The LC50 values of Cry1Ac, Cry1Ab, Cry1Aa, and Cry1C against C. medinalis were 0.405, 1.111, 1.939, and 1.246 µg/ml, respectively. Furthermore, the mortality of C. medinalis against different Cry toxins showed different results over time and LT50 values of Cry1Ac, Cry1Ab, Cry1Aa, and Cry1C against C. medinalis were 1.5, 2.3, 1.6, and 2.2 d, respectively. Preference of the larvae to Cry toxins revealed that C. medinalis larvae had no significant feeding preference on leaves without Bacillus thuringiensis (Bacillales: Bacillaceae; [Bt]) toxin compared with those containing Bt toxin. However, different Cry toxins had different attractive abilities to C. medinalis larvae. During 8 h after infestation, C. medinalis larvae preferred the leaves with Cry1Ab (22.4–27.6%) over those with Cry1Ac or Cry1C.</description><identifier>ISSN: 0022-0493</identifier><identifier>EISSN: 1938-291X</identifier><identifier>EISSN: 0022-0493</identifier><identifier>DOI: 10.1603/EC12236</identifier><identifier>PMID: 23356078</identifier><identifier>CODEN: JEENAI</identifier><language>eng</language><publisher>Lanham, MD: Entomological Society of America</publisher><subject>Animals ; Bacillus thuringiensis ; Bacterial Proteins ; bioassays ; Biological and medical sciences ; Cnaphalocrocis medinalis ; Control ; Cry toxin ; Endotoxins ; Food Preferences ; Fundamental and applied biological sciences. Psychology ; Generalities ; Hemolysin Proteins ; Insecta ; INSECTICIDE RESISTANCE AND RESISTANCE MANAGEMENT ; Invertebrates ; Larva ; larvae ; leaves ; lethal concentration 50 ; Lethal Dose 50 ; mortality ; Moths ; Oryza ; paddies ; Phytopathology. Animal pests. Plant and forest protection ; Protozoa. Invertebrates ; Pyralidae ; selectivity ; susceptibility ; toxins</subject><ispartof>Journal of economic entomology, 2012-12, Vol.105 (6), p.2122-2128</ispartof><rights>2012 Entomological Society of America</rights><rights>2014 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-b365t-cc8e3577961011bec5e270007f7964cc68ee09869f1815f526f0bde2293d05183</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27922,27923</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=26767327$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/23356078$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Yang, Yajun</creatorcontrib><creatorcontrib>Xu, Hongxing</creatorcontrib><creatorcontrib>Zheng, Xusong</creatorcontrib><creatorcontrib>Lu, Zhongxian</creatorcontrib><title>Susceptibility and Selectivity of Cnaphalocrocis medinalis (Lepidoptera: Pyralidae) to Different Cry Toxins</title><title>Journal of economic entomology</title><addtitle>J Econ Entomol</addtitle><description>Effectiveness of four Cry toxins (Cry1Ac, Cry1Aa, Cry1Ab, and Cry1C) on Cnaphalocrocis medinalis (Guenée) (Lepidoptera: Pyralidae), collected from paddy fields in Jiaxing, Zhejiang Province, China, was evaluated in the laboratory. Bioassays showed that C. medinalis had different susceptibilities against four Cry toxins. The LC50 values of Cry1Ac, Cry1Ab, Cry1Aa, and Cry1C against C. medinalis were 0.405, 1.111, 1.939, and 1.246 µg/ml, respectively. Furthermore, the mortality of C. medinalis against different Cry toxins showed different results over time and LT50 values of Cry1Ac, Cry1Ab, Cry1Aa, and Cry1C against C. medinalis were 1.5, 2.3, 1.6, and 2.2 d, respectively. Preference of the larvae to Cry toxins revealed that C. medinalis larvae had no significant feeding preference on leaves without Bacillus thuringiensis (Bacillales: Bacillaceae; [Bt]) toxin compared with those containing Bt toxin. However, different Cry toxins had different attractive abilities to C. medinalis larvae. During 8 h after infestation, C. medinalis larvae preferred the leaves with Cry1Ab (22.4–27.6%) over those with Cry1Ac or Cry1C.</description><subject>Animals</subject><subject>Bacillus thuringiensis</subject><subject>Bacterial Proteins</subject><subject>bioassays</subject><subject>Biological and medical sciences</subject><subject>Cnaphalocrocis medinalis</subject><subject>Control</subject><subject>Cry toxin</subject><subject>Endotoxins</subject><subject>Food Preferences</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Generalities</subject><subject>Hemolysin Proteins</subject><subject>Insecta</subject><subject>INSECTICIDE RESISTANCE AND RESISTANCE MANAGEMENT</subject><subject>Invertebrates</subject><subject>Larva</subject><subject>larvae</subject><subject>leaves</subject><subject>lethal concentration 50</subject><subject>Lethal Dose 50</subject><subject>mortality</subject><subject>Moths</subject><subject>Oryza</subject><subject>paddies</subject><subject>Phytopathology. Animal pests. Plant and forest protection</subject><subject>Protozoa. Invertebrates</subject><subject>Pyralidae</subject><subject>selectivity</subject><subject>susceptibility</subject><subject>toxins</subject><issn>0022-0493</issn><issn>1938-291X</issn><issn>0022-0493</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp1kc1u1DAURi0EokNb8QbgDaIsQq_tiX_YoVBapJGoNK3ELnKcazBk4mBnUOftcTVTumJl--rok79zCXnJ4D2TIM4vGsa5kE_IghmhK27Yt6dkAcB5BUsjjsiLnH8CMMkZPCdHXIhagtIL8mu9zQ6nOXRhCPOO2rGnaxzQzeHP_Tt62ox2-mGH6FJ0IdMN9mG0Q7mdrXAKfZxmTPYDvd6lMu0tvqNzpJ-C95hwnGmTdvQm3oUxn5Bn3g4ZTw_nMbn9fHHTXFWrr5dfmo-rqhOynivnNIpaKSMZMNahq5ErAFC-jJbOSY0IRkvjmWa1r7n00PXIuRE91EyLY3K2z51S_L3FPLebUEoOgx0xbnPLuOZaGMFlQd_u0VIu54S-nVLY2LRrGbT3ZtuD2UK-OoRuu6LgH_egsgBvDoDNzg4-2bHoeuSkkkpwVbjXe87b2NrvqTC3a15WUyoKJczyMakLMY743y_9BUB3lDs</recordid><startdate>20121201</startdate><enddate>20121201</enddate><creator>Yang, Yajun</creator><creator>Xu, Hongxing</creator><creator>Zheng, Xusong</creator><creator>Lu, Zhongxian</creator><general>Entomological Society of America</general><scope>FBQ</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20121201</creationdate><title>Susceptibility and Selectivity of Cnaphalocrocis medinalis (Lepidoptera: Pyralidae) to Different Cry Toxins</title><author>Yang, Yajun ; Xu, Hongxing ; Zheng, Xusong ; Lu, Zhongxian</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-b365t-cc8e3577961011bec5e270007f7964cc68ee09869f1815f526f0bde2293d05183</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Animals</topic><topic>Bacillus thuringiensis</topic><topic>Bacterial Proteins</topic><topic>bioassays</topic><topic>Biological and medical sciences</topic><topic>Cnaphalocrocis medinalis</topic><topic>Control</topic><topic>Cry toxin</topic><topic>Endotoxins</topic><topic>Food Preferences</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Generalities</topic><topic>Hemolysin Proteins</topic><topic>Insecta</topic><topic>INSECTICIDE RESISTANCE AND RESISTANCE MANAGEMENT</topic><topic>Invertebrates</topic><topic>Larva</topic><topic>larvae</topic><topic>leaves</topic><topic>lethal concentration 50</topic><topic>Lethal Dose 50</topic><topic>mortality</topic><topic>Moths</topic><topic>Oryza</topic><topic>paddies</topic><topic>Phytopathology. Animal pests. Plant and forest protection</topic><topic>Protozoa. Invertebrates</topic><topic>Pyralidae</topic><topic>selectivity</topic><topic>susceptibility</topic><topic>toxins</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yang, Yajun</creatorcontrib><creatorcontrib>Xu, Hongxing</creatorcontrib><creatorcontrib>Zheng, Xusong</creatorcontrib><creatorcontrib>Lu, Zhongxian</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of economic entomology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yang, Yajun</au><au>Xu, Hongxing</au><au>Zheng, Xusong</au><au>Lu, Zhongxian</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Susceptibility and Selectivity of Cnaphalocrocis medinalis (Lepidoptera: Pyralidae) to Different Cry Toxins</atitle><jtitle>Journal of economic entomology</jtitle><addtitle>J Econ Entomol</addtitle><date>2012-12-01</date><risdate>2012</risdate><volume>105</volume><issue>6</issue><spage>2122</spage><epage>2128</epage><pages>2122-2128</pages><issn>0022-0493</issn><eissn>1938-291X</eissn><eissn>0022-0493</eissn><coden>JEENAI</coden><abstract>Effectiveness of four Cry toxins (Cry1Ac, Cry1Aa, Cry1Ab, and Cry1C) on Cnaphalocrocis medinalis (Guenée) (Lepidoptera: Pyralidae), collected from paddy fields in Jiaxing, Zhejiang Province, China, was evaluated in the laboratory. Bioassays showed that C. medinalis had different susceptibilities against four Cry toxins. The LC50 values of Cry1Ac, Cry1Ab, Cry1Aa, and Cry1C against C. medinalis were 0.405, 1.111, 1.939, and 1.246 µg/ml, respectively. Furthermore, the mortality of C. medinalis against different Cry toxins showed different results over time and LT50 values of Cry1Ac, Cry1Ab, Cry1Aa, and Cry1C against C. medinalis were 1.5, 2.3, 1.6, and 2.2 d, respectively. Preference of the larvae to Cry toxins revealed that C. medinalis larvae had no significant feeding preference on leaves without Bacillus thuringiensis (Bacillales: Bacillaceae; [Bt]) toxin compared with those containing Bt toxin. However, different Cry toxins had different attractive abilities to C. medinalis larvae. During 8 h after infestation, C. medinalis larvae preferred the leaves with Cry1Ab (22.4–27.6%) over those with Cry1Ac or Cry1C.</abstract><cop>Lanham, MD</cop><pub>Entomological Society of America</pub><pmid>23356078</pmid><doi>10.1603/EC12236</doi><tpages>7</tpages></addata></record> |
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| ispartof | Journal of economic entomology, 2012-12, Vol.105 (6), p.2122-2128 |
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| subjects | Animals Bacillus thuringiensis Bacterial Proteins bioassays Biological and medical sciences Cnaphalocrocis medinalis Control Cry toxin Endotoxins Food Preferences Fundamental and applied biological sciences. Psychology Generalities Hemolysin Proteins Insecta INSECTICIDE RESISTANCE AND RESISTANCE MANAGEMENT Invertebrates Larva larvae leaves lethal concentration 50 Lethal Dose 50 mortality Moths Oryza paddies Phytopathology. Animal pests. Plant and forest protection Protozoa. Invertebrates Pyralidae selectivity susceptibility toxins |
| title | Susceptibility and Selectivity of Cnaphalocrocis medinalis (Lepidoptera: Pyralidae) to Different Cry Toxins |
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