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Registro Completo |
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
03/12/2014 |
Data da última atualização: |
03/12/2014 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
LEITE, N. A.; MENDES, S. M.; SANTOS, C. A. dos; PEREIRA, E. J. G. |
Afiliação: |
SIMONE MARTINS MENDES, CNPMS. |
Título: |
Does Cry1Ab maize interfere in the biology and behavioural traits of Podisus nigrispinus? |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Bulletin of Insectology, Bologna, v. 67, n. 2, p. 265-271, 2014. |
Idioma: |
Inglês |
Conteúdo: |
Transgenic plants expressing Bacillus thuringiensis proteins can indirectly affect natural enemies of target insects, and the assessment of these effects is essential in risk analysis of genetically modified plants. The biology of Podisus nigrispinus (Dallas) (Hemiptera Pentatomidae) and changes in the predation behaviour of this insect when fed with Bt (Cry1Ab) maize-fed Spodoptera frugiperda (J. E. Smith) larvae (Lepidoptera Noctuidae) was evaluated. The predator showed 43.7% delay in the nymphal development time and 15% biomass reduction in the fifth instar, probably due to low nutritional quality of prey exposed to Bt maize. Survival curves were similar in predators fed with S. frugiperda larvae exposed and not exposed to Bt maize. The predator search time was slightly influenced by the developmental delay of S. frugiperda fed with Bt maize. In a greenhouse assay P. nigrispinus was important in controlling S. frugiperda density in Bt maize expressing the Cry1Ab protein. Our laboratory results indicate that Bt maize may cause indirect effects on P. nigrispinus, and suggest that nutritional prey-quality factors other than the Bt protein determine the observed negative effects. However, the semi-field greenhouse assays demonstrate that indirect negative effects of Bt maize on the predator?s performance and search behaviour is not substantiated, and that plant damage is lowest if Bt maize is used concurrently with biological control by P. nigrispinus for managing S. frugiperda. MenosTransgenic plants expressing Bacillus thuringiensis proteins can indirectly affect natural enemies of target insects, and the assessment of these effects is essential in risk analysis of genetically modified plants. The biology of Podisus nigrispinus (Dallas) (Hemiptera Pentatomidae) and changes in the predation behaviour of this insect when fed with Bt (Cry1Ab) maize-fed Spodoptera frugiperda (J. E. Smith) larvae (Lepidoptera Noctuidae) was evaluated. The predator showed 43.7% delay in the nymphal development time and 15% biomass reduction in the fifth instar, probably due to low nutritional quality of prey exposed to Bt maize. Survival curves were similar in predators fed with S. frugiperda larvae exposed and not exposed to Bt maize. The predator search time was slightly influenced by the developmental delay of S. frugiperda fed with Bt maize. In a greenhouse assay P. nigrispinus was important in controlling S. frugiperda density in Bt maize expressing the Cry1Ab protein. Our laboratory results indicate that Bt maize may cause indirect effects on P. nigrispinus, and suggest that nutritional prey-quality factors other than the Bt protein determine the observed negative effects. However, the semi-field greenhouse assays demonstrate that indirect negative effects of Bt maize on the predator?s performance and search behaviour is not substantiated, and that plant damage is lowest if Bt maize is used concurrently with biological control by P. nigrispinus for managing S. frugiper... Mostrar Tudo |
Palavras-Chave: |
Milho Bt; Predação. |
Thesagro: |
Controle biológico; Spodoptera frugiperda. |
Thesaurus Nal: |
Predation. |
Categoria do assunto: |
H Saúde e Patologia |
Marc: |
LEADER 02151naa a2200217 a 4500 001 2001478 005 2014-12-03 008 2014 bl uuuu u00u1 u #d 100 1 $aLEITE, N. A. 245 $aDoes Cry1Ab maize interfere in the biology and behavioural traits of Podisus nigrispinus?$h[electronic resource] 260 $c2014 520 $aTransgenic plants expressing Bacillus thuringiensis proteins can indirectly affect natural enemies of target insects, and the assessment of these effects is essential in risk analysis of genetically modified plants. The biology of Podisus nigrispinus (Dallas) (Hemiptera Pentatomidae) and changes in the predation behaviour of this insect when fed with Bt (Cry1Ab) maize-fed Spodoptera frugiperda (J. E. Smith) larvae (Lepidoptera Noctuidae) was evaluated. The predator showed 43.7% delay in the nymphal development time and 15% biomass reduction in the fifth instar, probably due to low nutritional quality of prey exposed to Bt maize. Survival curves were similar in predators fed with S. frugiperda larvae exposed and not exposed to Bt maize. The predator search time was slightly influenced by the developmental delay of S. frugiperda fed with Bt maize. In a greenhouse assay P. nigrispinus was important in controlling S. frugiperda density in Bt maize expressing the Cry1Ab protein. Our laboratory results indicate that Bt maize may cause indirect effects on P. nigrispinus, and suggest that nutritional prey-quality factors other than the Bt protein determine the observed negative effects. However, the semi-field greenhouse assays demonstrate that indirect negative effects of Bt maize on the predator?s performance and search behaviour is not substantiated, and that plant damage is lowest if Bt maize is used concurrently with biological control by P. nigrispinus for managing S. frugiperda. 650 $aPredation 650 $aControle biológico 650 $aSpodoptera frugiperda 653 $aMilho Bt 653 $aPredação 700 1 $aMENDES, S. M. 700 1 $aSANTOS, C. A. dos 700 1 $aPEREIRA, E. J. G. 773 $tBulletin of Insectology, Bologna$gv. 67, n. 2, p. 265-271, 2014.
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Embrapa Milho e Sorgo (CNPMS) |
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Biblioteca(s): |
Embrapa Agrobiologia. |
Data corrente: |
31/05/2016 |
Data da última atualização: |
31/05/2016 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
LOPEZ NETTO, A.; ASSIS, R. L. de; GUEDES, C. A. M.; AQUINO, A. M. de. |
Afiliação: |
AMAZILE LOPEZ NETTO, UFRRJ; RENATO LINHARES DE ASSIS, CNPAB; CEZAR AUGUSTO MIRANDA GUEDES, FGV, SP; ADRIANA MARIA DE AQUINO, CNPAB. |
Título: |
Denominações territoriais agroalimentares: experiências da União Européia e do Mercosul para o desenvolvimento territorial dos ambientes de montanha |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
Estudos Sociedade e Agricultura, Rio de Janeiro, v. 23, n. 1 p. 268-293, 2015 |
ISSN: |
1413-0580 |
Idioma: |
Português |
Palavras-Chave: |
Agricultura de montanha; Brasil; Politicas internacionais. |
Thesagro: |
Políticas Públicas. |
Thesaurus NAL: |
Argentina. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/143581/1/Denominacoes-territoriais-agroalimentares.pdf
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Marc: |
LEADER 00730naa a2200217 a 4500 001 2045943 005 2016-05-31 008 2015 bl uuuu u00u1 u #d 022 $a1413-0580 100 1 $aLOPEZ NETTO, A. 245 $aDenominações territoriais agroalimentares$bexperiências da União Européia e do Mercosul para o desenvolvimento territorial dos ambientes de montanha 260 $c2015 650 $aArgentina 650 $aPolíticas Públicas 653 $aAgricultura de montanha 653 $aBrasil 653 $aPoliticas internacionais 700 1 $aASSIS, R. L. de 700 1 $aGUEDES, C. A. M. 700 1 $aAQUINO, A. M. de 773 $tEstudos Sociedade e Agricultura, Rio de Janeiro$gv. 23, n. 1 p. 268-293, 2015
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