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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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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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| Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
08/02/2017 |
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Data da última atualização: |
08/02/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
NOGUEIRA, L. R.; SILVA, C. F. da; PEREIRA, M. G.; GOMES, J. E. G.; SILVA, E. M. R. da. |
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Afiliação: |
LEANDRO RIBEIRO NOGUEIRA, UFRRJ; CRISTIANE FIGUEIRA DA SILVA; MARCOS GERVASIO PEREIRA, UFRRJ; JOÃO HENRIQUE GAIA GOMES, UFRRJ; ELIANE MARIA RIBEIRO DA SILVA, CNPAB. |
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Título: |
Biological properties and organic matter dynamics of soil in pasture and natural regeneration areas in the atlantic forest biome. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Revista Brasileira de Ciência do Solo, Viçosa, v. 40, Epub out. 24, 2016. |
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Páginas: |
p. 1-13 |
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DOI: |
10.1590/18069657rbcs20150366 |
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Idioma: |
Inglês |
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Conteúdo: |
O objetivo deste trabalho foi avaliar os custos operacionais do coroamento com papelão em relação ao coroamento com enxada em um reflorestamento implantado em Seropédica, RJ. A vegetação da área era predominantemente composta por Andropogon bicornis. Os papelões utilizados apresentaram dimensões de 50 X 50 cm e foram tratados com solução a base de CuSO4 para aumentar a durabilidade em campo. O custo total do coroamento com papelão foi de R$ 3.257,81/ha, sendo a maior parte associado à aquisição do papelão e à mão de obra do coroamento de plantio feito com enxada anteriormente ao plantio. Já o custo total do coroamento exclusivo com enxada ao longo do primeiro ano foi de R$ 5.714,29/ha. Os resultados mostram que a técnica de coroamento com papelão pode ser uma alternativa viável e de baixo custo em relação ao coroamento com enxada em áreas de reflorestamento com espécies da Mata Atlântica |
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Palavras-Chave: |
Arbuscular mycorrhizal fung; Forest fragment; Organic carbon. |
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Thesaurus NAL: |
Biodiversity; Microbial biomass. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 01731naa a2200253 a 4500
001 2063146
005 2017-02-08
008 2016 bl uuuu u00u1 u #d
024 7 $a10.1590/18069657rbcs20150366$2DOI
100 1 $aNOGUEIRA, L. R.
245 $aBiological properties and organic matter dynamics of soil in pasture and natural regeneration areas in the atlantic forest biome.
260 $c2016
300 $ap. 1-13
520 $aO objetivo deste trabalho foi avaliar os custos operacionais do coroamento com papelão em relação ao coroamento com enxada em um reflorestamento implantado em Seropédica, RJ. A vegetação da área era predominantemente composta por Andropogon bicornis. Os papelões utilizados apresentaram dimensões de 50 X 50 cm e foram tratados com solução a base de CuSO4 para aumentar a durabilidade em campo. O custo total do coroamento com papelão foi de R$ 3.257,81/ha, sendo a maior parte associado à aquisição do papelão e à mão de obra do coroamento de plantio feito com enxada anteriormente ao plantio. Já o custo total do coroamento exclusivo com enxada ao longo do primeiro ano foi de R$ 5.714,29/ha. Os resultados mostram que a técnica de coroamento com papelão pode ser uma alternativa viável e de baixo custo em relação ao coroamento com enxada em áreas de reflorestamento com espécies da Mata Atlântica
650 $aBiodiversity
650 $aMicrobial biomass
653 $aArbuscular mycorrhizal fung
653 $aForest fragment
653 $aOrganic carbon
700 1 $aSILVA, C. F. da
700 1 $aPEREIRA, M. G.
700 1 $aGOMES, J. E. G.
700 1 $aSILVA, E. M. R. da
773 $tRevista Brasileira de Ciência do Solo, Viçosa$gv. 40, Epub out. 24, 2016.
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Embrapa Agrobiologia (CNPAB) |
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