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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
12/05/2014 |
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Data da última atualização: |
12/04/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
COSTA, M. L. M.; LANA, U. G. P.; BARROS, E. C.; PAIVA, L. V.; VALICENTE, F. H. |
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Afiliação: |
UBIRACI GOMES DE PAULA LANA, CNPMS; FERNANDO HERCOS VALICENTE, CNPMS. |
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Título: |
Molecular characterization of bacillus thuringiensis cyt genes efficient against fall armyworm, Spodoptera frugiperda. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Journal of Agricultural Science, Cambridge, v. 6, n. 7, p. 1-10, 2014. |
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DOI: |
10.5539/jas.v6n7pxx |
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Idioma: |
Inglês |
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Conteúdo: |
Bacillus thuringiensis (Bt) endotoxins (Cyt and Cry) have been extensively explored for biological control of fall armyworm, Spodoptera frugiperda, an important pest in major corn-producing countries of America. Five hundred Bt isolates with different toxicities against S. frugiperda were characterized by PCR for the presence of cyt genes (cyt1, cyt2, cyt1Aa, cyt1Ab, cyt2B and cyt2Ba), and the effect of insecticidal proteins Cry1Ba, Cry1Ca, Cry1Da and Cyt on S. frugiperda larvae were evaluated. Six isolates showed the presence of cyt genes, three isolates harbored two gene families (cyt1 and cyt2), and three isolates harbored only one of the cyt gene families (cyt1 and cyt2). It was not possible to correlate the presence/absence of cyt genes with toxicity against S. frugiperda. In this study, cyt genes were present in toxic and nontoxic isolates to this insect pest. Bioassays against S. frugiperda larvae showed that only Cry1Ca protein had toxicity, with 77.08% of mortality. Synergism among Cry and Cry proteins used in this study against S. frugiperda was not observed. |
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Thesagro: |
Bacteria; Controle biológico; Milho; Praga de planta. |
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Thesaurus Nal: |
Biological control; Plant pests. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/102040/1/Molecular-characterization-4.pdf
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Marc: |
LEADER 01864naa a2200253 a 4500
001 1985917
005 2018-04-12
008 2014 bl uuuu u00u1 u #d
024 7 $a10.5539/jas.v6n7pxx$2DOI
100 1 $aCOSTA, M. L. M.
245 $aMolecular characterization of bacillus thuringiensis cyt genes efficient against fall armyworm, Spodoptera frugiperda.$h[electronic resource]
260 $c2014
520 $aBacillus thuringiensis (Bt) endotoxins (Cyt and Cry) have been extensively explored for biological control of fall armyworm, Spodoptera frugiperda, an important pest in major corn-producing countries of America. Five hundred Bt isolates with different toxicities against S. frugiperda were characterized by PCR for the presence of cyt genes (cyt1, cyt2, cyt1Aa, cyt1Ab, cyt2B and cyt2Ba), and the effect of insecticidal proteins Cry1Ba, Cry1Ca, Cry1Da and Cyt on S. frugiperda larvae were evaluated. Six isolates showed the presence of cyt genes, three isolates harbored two gene families (cyt1 and cyt2), and three isolates harbored only one of the cyt gene families (cyt1 and cyt2). It was not possible to correlate the presence/absence of cyt genes with toxicity against S. frugiperda. In this study, cyt genes were present in toxic and nontoxic isolates to this insect pest. Bioassays against S. frugiperda larvae showed that only Cry1Ca protein had toxicity, with 77.08% of mortality. Synergism among Cry and Cry proteins used in this study against S. frugiperda was not observed.
650 $aBiological control
650 $aPlant pests
650 $aBacteria
650 $aControle biológico
650 $aMilho
650 $aPraga de planta
700 1 $aLANA, U. G. P.
700 1 $aBARROS, E. C.
700 1 $aPAIVA, L. V.
700 1 $aVALICENTE, F. H.
773 $tJournal of Agricultural Science, Cambridge$gv. 6, n. 7, p. 1-10, 2014.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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