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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
06/12/2005 |
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Data da última atualização: |
30/05/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
JHAM, G. N.; SILVA, A. A. da; LIMA, E. R.; VIANA, P. |
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Afiliação: |
PAULO AFONSO VIANA, CNPMS. |
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Título: |
Identification (GC and GC-MS) of unsaturated acetates in Elasmopalpus lignosellus and their biological activity (GC-EAD and EAG). |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Journal of Separation Science, Weinheim, v. 28, n. 3, p. 281-285, 2005. |
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Idioma: |
Inglês |
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Conteúdo: |
Two insect colonies of Elasmopalpus lignosellus were reared in our laboratory, the first being initiated from pupae obtained from a cornfield in the region of Sete Lagoas, Minas Gerais and the second from a cornfield in the region of Goiania, Goias. From the two colonies, two extracts were prepared from the pheromone glands of virgin E. lignosellus females. The extract obtained from the first colony was designated as extract 1 while the extract obtained from the second colony was designated as extract 2. Extract 1 was analysed by gas chromatography-mass spectrometry (GC-MS) with (Z)-9-hexadecenyl acetate [(Z)-9-HDA] and (Z)-11-hexadecenyl acetate [(Z)-11-HDA] being identified and confirmed by the formation of DMDS derivatives. In addition, a third acetate, which could be either (E)-8-hexadecenyl acetate [(E)-8-HDA] or (E)-9-hexadecenyl acetate [(E)-9-HDA] was detected by GC-MS. Extract 2 was analysed by gas chromatography (GC) and gas chromatography-electroannetography (GC-EAD) revealing the presence of (Z)-11-HDA and (Z)-9-TDA. In addition, the same compounds elicited a response with the E. lignosellus male antenna obtained from the second insect colony. Electroantennography (EAG) screening with the male E. lignosellus antenna (obtained from the second insect colony) was conducted with the 23 possible tetradecenyl acetates (TDA) and 22 hexadecenyl acetates (HDA) as standards. Out of the 23 TDA isomers evaluated, only (Z)-9-TDA elicited a response and out of the 22 HDA [(Z) and (E) isomers Delta 2 to Delta 13] evaluated only (Z)-11-HDA elicited a response. The acetate compositions of two extracts obtained from insects originating from the two states (Minas Gerais and Goias) of Brazil were different from one another as well as from that obtained from insects in Tifton, GA, USA. The bioactivity data (GC-EAD) of the extract 2 differed from those reported for the Tifton, GA, USA population. These data suggest polymorphism in relation to the insect populations found in Brazil and in the USA. The possibility of the existence of an E. lignosellus sub-species cannot be ruled out. MenosTwo insect colonies of Elasmopalpus lignosellus were reared in our laboratory, the first being initiated from pupae obtained from a cornfield in the region of Sete Lagoas, Minas Gerais and the second from a cornfield in the region of Goiania, Goias. From the two colonies, two extracts were prepared from the pheromone glands of virgin E. lignosellus females. The extract obtained from the first colony was designated as extract 1 while the extract obtained from the second colony was designated as extract 2. Extract 1 was analysed by gas chromatography-mass spectrometry (GC-MS) with (Z)-9-hexadecenyl acetate [(Z)-9-HDA] and (Z)-11-hexadecenyl acetate [(Z)-11-HDA] being identified and confirmed by the formation of DMDS derivatives. In addition, a third acetate, which could be either (E)-8-hexadecenyl acetate [(E)-8-HDA] or (E)-9-hexadecenyl acetate [(E)-9-HDA] was detected by GC-MS. Extract 2 was analysed by gas chromatography (GC) and gas chromatography-electroannetography (GC-EAD) revealing the presence of (Z)-11-HDA and (Z)-9-TDA. In addition, the same compounds elicited a response with the E. lignosellus male antenna obtained from the second insect colony. Electroantennography (EAG) screening with the male E. lignosellus antenna (obtained from the second insect colony) was conducted with the 23 possible tetradecenyl acetates (TDA) and 22 hexadecenyl acetates (HDA) as standards. Out of the 23 TDA isomers evaluated, only (Z)-9-TDA elicited a response and out of the 22 HDA [(Z) ... Mostrar Tudo |
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Thesagro: |
Inseto. |
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Thesaurus Nal: |
acetates. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02687naa a2200181 a 4500
001 1487835
005 2018-05-30
008 2005 bl uuuu u00u1 u #d
100 1 $aJHAM, G. N.
245 $aIdentification (GC and GC-MS) of unsaturated acetates in Elasmopalpus lignosellus and their biological activity (GC-EAD and EAG).$h[electronic resource]
260 $c2005
520 $aTwo insect colonies of Elasmopalpus lignosellus were reared in our laboratory, the first being initiated from pupae obtained from a cornfield in the region of Sete Lagoas, Minas Gerais and the second from a cornfield in the region of Goiania, Goias. From the two colonies, two extracts were prepared from the pheromone glands of virgin E. lignosellus females. The extract obtained from the first colony was designated as extract 1 while the extract obtained from the second colony was designated as extract 2. Extract 1 was analysed by gas chromatography-mass spectrometry (GC-MS) with (Z)-9-hexadecenyl acetate [(Z)-9-HDA] and (Z)-11-hexadecenyl acetate [(Z)-11-HDA] being identified and confirmed by the formation of DMDS derivatives. In addition, a third acetate, which could be either (E)-8-hexadecenyl acetate [(E)-8-HDA] or (E)-9-hexadecenyl acetate [(E)-9-HDA] was detected by GC-MS. Extract 2 was analysed by gas chromatography (GC) and gas chromatography-electroannetography (GC-EAD) revealing the presence of (Z)-11-HDA and (Z)-9-TDA. In addition, the same compounds elicited a response with the E. lignosellus male antenna obtained from the second insect colony. Electroantennography (EAG) screening with the male E. lignosellus antenna (obtained from the second insect colony) was conducted with the 23 possible tetradecenyl acetates (TDA) and 22 hexadecenyl acetates (HDA) as standards. Out of the 23 TDA isomers evaluated, only (Z)-9-TDA elicited a response and out of the 22 HDA [(Z) and (E) isomers Delta 2 to Delta 13] evaluated only (Z)-11-HDA elicited a response. The acetate compositions of two extracts obtained from insects originating from the two states (Minas Gerais and Goias) of Brazil were different from one another as well as from that obtained from insects in Tifton, GA, USA. The bioactivity data (GC-EAD) of the extract 2 differed from those reported for the Tifton, GA, USA population. These data suggest polymorphism in relation to the insect populations found in Brazil and in the USA. The possibility of the existence of an E. lignosellus sub-species cannot be ruled out.
650 $aacetates
650 $aInseto
700 1 $aSILVA, A. A. da
700 1 $aLIMA, E. R.
700 1 $aVIANA, P.
773 $tJournal of Separation Science, Weinheim$gv. 28, n. 3, p. 281-285, 2005.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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| Registros recuperados : 13 | |
| 1. |  | LEITE, G. L. D.; PICANÇO, M.; JHAM, G. N.; MOREIRA, M. D. Bemisia tabaci, Brevicoryne brassicae and Thrips tabaci abundance on Brassica oleracea var. acephala. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 40, n. 3, p. 197-202, mar. 2005. Título em Português: Abundância de Bemisia tabaci, Brevicoryne brassicae e Thrips tabaci em Brassica oleracea var. acephala.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 3. | | LEITE, G. L. D.; PICANÇO, M.; JHAM, G. N.; GUSMÃO, M. R. Fatores naturais que influenciam o ataque da mosca-branca em pimentão. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 37, n. 8, p. 1195-1200, ago. 2002 Notas Científicas.
Título em inglês: Natural factors influencing whitefly attack in sweet pepper.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 4. | | LEITE, G. L. D.; PICANÇO, M.; JHAM, G. N.; GUSMÃO, M. R. Effects of leaf compounds, climate and natural enemies on the incidence of thrips in cassava. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 37, n. 11, p. 1657-1662, nov. 2002 Notas Científicas.
Título em português: Efeito de compostos foliares, clima e inimigos naturais na incidência de tripes em mandioca.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 7. | | LEITE, G. L. D.; PICANÇO, M.; JHAM, G. N.; MOREIRA, M. D. Whitefly, aphids and thrips attack on cabbage. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 41, n. 10, p. 1469-1475, out. 2006 Título em português: Ataque de mosca-branca, pulgões e tripes em repolho.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 8. | | LEITE, G. L. D.; PICANÇO, M.; JHAM, G. N.; MOREIRA, M. D. Whitefly population dynamics in okra plantations. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 40, n. 1, p. 19-25, jan. 2005 Título em português: Dinâmica populacional de mosca-branca em quiabo.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 9. | | PICANÇO, M. C.; SILVA, D. J. H.; LEITE, G. L. D.; MATA, A. C.; JHAM, G. N. Intensidade de ataque de Scrobipalpula absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae) ao dossel de três espécies de tomateiro. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 30, n. 4, p. 429-433, 1995. Título em inglês: Attack intensity of Scrobipalpula absoluta (Meyrick, 1971) (Lepidoptera: Gelechiidae) at the canopy of three tomato species.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 10. | | SVATOS, A.; ATTYGALLE, A. B.; JHAM, G. N.; FRIGHETTO, R. T. S.; VILELA, E. F.; SAMAN, D.; MEINWALD, J. Sex pheromone of tomato pest scrobipalpuloides absoluta (Lepidoptera: gelechidae). Journal of Chemical Ecology, v.22, n.4, p.787-800, 1996.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 11. | | ATTYGALE, A. B.; JHAM, G. N.; SVATOS, A.; FRIGHETTO, R. T. S.; MEINWALD, J.; VILELA, E. F.; FERRARA, F. A.; UCHOA-FERNANDES, M.A. Microscale, random reduction: application to the characterization of (3E,8Z,11Z)-3,8,11-tetradecatrienyl acetate, a new Lepidoptera sex pheromone. Tetrahedron Letters, v.36, n.31, p.5471-5474, 1995.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 12. | | FERRARA, F. A. A.; VILELA, E. F.; JHAM, G. N.; EIRAS, A. E.; PICANÇO, M. C.; ATTYGALLE, A. B.; SVATOS, A.; FRIGHETTO, R. T. S.; MEINWALD, J. Evaluation of the synthetic major component of the sex pheromone of Tuta absoluta (meyrick) (Lepidoptera: Gelechiidae). Journal of Chemical Ecology, New York, v. 27, n. 5, p. 907-917, 2001| Tipo: Artigo em Periódico Indexado |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 13. | | JHAM, G. N.; FRIGHETTO, R. T. S.; ATTYGALLE, A. B.; VILELA, E. F.; SVATOS, A.; MEINWALD, J.; UCHOA-FERNANDES, M. A.; FERRARA, F. A. A. Identificação, síntese e avaliação do feromônio sexual de Tuta absoluta (Meyrick)(Lepidoptera: Gelechiidae). VILELA, E. F.; DELLA LUCIA, T. M. C. (Ed.). Feromônios de insetos: biologia, química e emprego no manejo de pragas. 2. ed. Ribeirão Preto: Holos, 2001. p. 57-63| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| Registros recuperados : 13 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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