| |
|
|
| Registros recuperados : 76 | |
| 13. |  | RISCH, S. J.; ANDOW, D.; ALTIERI, M. A. Agroecosystem diversity and pest control: data, tentative conclusions, and new research directions. Forum: Environmental Entomology, v.12, n.3, p.625-629, June, 1983.| Biblioteca(s): Embrapa Agroindústria Tropical. |
|   |
| Registros recuperados : 76 | |
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
|
Data corrente: |
16/09/2014 |
|
Data da última atualização: |
13/03/2023 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 1 |
|
Autoria: |
PAULA, D. P.; ANDOW, D. A.; TIMBÓ, R. V.; SUJII, E. R.; PIRES, C. S. S. |
|
Afiliação: |
DEBORA PIRES PAULA, CENARGEN; DAVID A. ANDOW, UNIVERSITY OF MINNESOTA, USA; RENATA VELOZO TIMBÓ, UNB; EDISON RYOITI SUJII, CENARGEN; CARMEN SILVIA SOARES PIRES, CENARGEN. |
|
Título: |
Uptake and transfer of a Bt toxin by a lepidoptera to Its eggs and effects on Its offspring. |
|
Ano de publicação: |
2014 |
|
Fonte/Imprenta: |
PLoS ONE, v. 9, n. 4, 2014. (Open access). |
|
Idioma: |
Inglês |
|
Conteúdo: |
Research on non-target effects of transgenic crop plants has focused primarily on bitrophic, tritrophic and indirect effects of entomotoxins from Bacillus thuringiensis, but little work has considered intergenerational transfer of Cry proteins. This work reports a lepidopteran (Chlosyne lacinia) taking up a Bt entomotoxin when exposed to sublethal or low concentrations, transferring the entomotoxin to eggs, and having adverse effects on the first filial generation (F1) offspring. Two bioassays were conducted using a sublethal concentration of toxin (100.0 ng/ml Cry1Ac) for adults and a concentration equal to the LC10 (2.0 ng/ml Cry1Ac) for larvae. Cry1Ac is the most common entomotoxin expressed in Bt cotton in Brazil. In the adult diet bioassay there was no adverse effect on the parental generation (P0) adults, but the F1 larvae had higher mortality and longer development time compared to F1 larvae of parents that did not ingest Cry1Ac. For the 3rd instar larvae, there was no measurable effect on the P0 larvae, pupae and adults, but the F1 larvae had higher mortality and longer development time. Using chemiluminescent Western Blot, Cry1Ac was detected in F1 eggs laid by P0 butterflies from both bioassays. Our study indicates that, at least for this species and these experimental conditions, a ,65 kDa insecticidal protein can be taken up and transferred to descendants where it can increase mortality and development time. |
|
Thesaurus NAL: |
Lepidoptera. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/180016/1/pone.0095422.pdf
|
|
Marc: |
LEADER 01971naa a2200181 a 4500
001 1995058
005 2023-03-13
008 2014 bl uuuu u00u1 u #d
100 1 $aPAULA, D. P.
245 $aUptake and transfer of a Bt toxin by a lepidoptera to Its eggs and effects on Its offspring.$h[electronic resource]
260 $c2014
520 $aResearch on non-target effects of transgenic crop plants has focused primarily on bitrophic, tritrophic and indirect effects of entomotoxins from Bacillus thuringiensis, but little work has considered intergenerational transfer of Cry proteins. This work reports a lepidopteran (Chlosyne lacinia) taking up a Bt entomotoxin when exposed to sublethal or low concentrations, transferring the entomotoxin to eggs, and having adverse effects on the first filial generation (F1) offspring. Two bioassays were conducted using a sublethal concentration of toxin (100.0 ng/ml Cry1Ac) for adults and a concentration equal to the LC10 (2.0 ng/ml Cry1Ac) for larvae. Cry1Ac is the most common entomotoxin expressed in Bt cotton in Brazil. In the adult diet bioassay there was no adverse effect on the parental generation (P0) adults, but the F1 larvae had higher mortality and longer development time compared to F1 larvae of parents that did not ingest Cry1Ac. For the 3rd instar larvae, there was no measurable effect on the P0 larvae, pupae and adults, but the F1 larvae had higher mortality and longer development time. Using chemiluminescent Western Blot, Cry1Ac was detected in F1 eggs laid by P0 butterflies from both bioassays. Our study indicates that, at least for this species and these experimental conditions, a ,65 kDa insecticidal protein can be taken up and transferred to descendants where it can increase mortality and development time.
650 $aLepidoptera
700 1 $aANDOW, D. A.
700 1 $aTIMBÓ, R. V.
700 1 $aSUJII, E. R.
700 1 $aPIRES, C. S. S.
773 $tPLoS ONE$gv. 9, n. 4, 2014. (Open access).
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
