Molecular characterization of bacillus thuringiensis cyt genes efficient against fall armyworm, Spodoptera frugiperda

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorCosta, Maria L. M.-
Autor(es): dc.creatorLana, Ubiraci G. P.-
Autor(es): dc.creatorBarros, Emerson C.-
Autor(es): dc.creatorPaiva, Luciano V.-
Autor(es): dc.creatorValicente, Fernando H.-
Data de aceite: dc.date.accessioned2026-02-09T12:29:50Z-
Data de disponibilização: dc.date.available2026-02-09T12:29:50Z-
Data de envio: dc.date.issued2020-06-14-
Data de envio: dc.date.issued2020-06-14-
Data de envio: dc.date.issued2014-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/41410-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1162459-
Descrição: dc.descriptionBacillus 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.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Publicador: dc.publisherCanadian Center of Science and Education (CCSE)-
Direitos: dc.rightsacesso aberto-
Direitos: dc.rightshttp://creativecommons.org/licenses/by/4.0/-
Direitos: dc.rightshttp://creativecommons.org/licenses/by/4.0/-
???dc.source???: dc.sourceJournal of Agricultural Science (JAS)-
Palavras-chave: dc.subjectBacillus thuringiensis-
Palavras-chave: dc.subjectCyt genes-
Palavras-chave: dc.subjectEntomopathogenic bacteria-
Palavras-chave: dc.subjectCyt proteins-
Palavras-chave: dc.subjectCry proteins-
Título: dc.titleMolecular characterization of bacillus thuringiensis cyt genes efficient against fall armyworm, Spodoptera frugiperda-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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