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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
02/04/2015 |
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Data da última atualização: |
05/04/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SILVA, R. A. da; QUINTELA, E. D.; MASCARIN, G. M.; PEDRINI, N.; LIÃO, L. M.; FERRI, P. H. |
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Afiliação: |
RODRIGO ALVES DA SILVA, INSTITUTO FEDERAL DE BRASÍLIA; ELIANE DIAS QUINTELA, CNPAF; GABRIEL MOURA MASCARIN, CNPAF; NICOLAS PEDRINI, INSTITUTO DE INVESTIGACIONES DE LA PLATA, ARGENTINA; LUCIANO MORAES LIÃO, UFG; PEDRO HENRIQUE FERRI, UFG. |
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Título: |
Unveiling chemical defense in the rice stalk stink bug against the entomopathogenic fungus Metarhizium anisopliae. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Journal of Invertebrate Pathology, v. 127, p. 93-100, 2015. |
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ISSN: |
0022-2011 |
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DOI: |
10.1016/j.jip.2015.03.009 |
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Idioma: |
Inglês |
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Conteúdo: |
Eggs, nymphs (1st-5th instar) and adults of Tibraca limbativentris were challenged by conidial suspensions of its major fungal pathogen Metarhizium anisopliae in order to assess their susceptibility. The role of chemical defensive compounds from exocrine secretions produced by both nymphs and adults were examined for their participation on M. anisopliae infection. Although insect susceptibility to M. anisopliae followed a dose-dependent manner, adults followed by older nymphs displayed the highest resistance. Eggs were highly susceptible showing >96% fungal infection. Crude extracts isolated from metathoracic scent gland and dorsal abdominal glands of adults and nymphs, respectively, showed fungistatic effects by impairing spore germination, vegetative growth and sporulation. Gas chromatography-mass spectrometry analysis of these extracts revealed that the major components were short-chain hydrocarbons (C10-13) and unsaturated aldehydes. In vitro tests with the corresponding synthetic standards indicated compounds with greater antifungal activity including (E)-2-hexenal, (E)-2-octenal, and (E)-2-decenal, with the latter being the most deleterious to fungal fitness. We demonstrated that differential susceptibility of the rice stalk stink bug to M. anisopliae infection is age-specific and partly mediated by fungistatic properties of aldehydes, which are produced by scent glands of both nymphs and adults. |
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Thesagro: |
Arroz; Fungo; Metarhizium anisopliae; Oryza sativa; Tibraca limbativentris. |
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Thesaurus Nal: |
Allelochemicals; Chemical ecology; Clavicipitaceae; Virulence. |
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Categoria do assunto: |
O Insetos e Entomologia |
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Marc: |
LEADER 02346naa a2200313 a 4500
001 2012699
005 2016-04-05
008 2015 bl uuuu u00u1 u #d
022 $a0022-2011
024 7 $a10.1016/j.jip.2015.03.009$2DOI
100 1 $aSILVA, R. A. da
245 $aUnveiling chemical defense in the rice stalk stink bug against the entomopathogenic fungus Metarhizium anisopliae.$h[electronic resource]
260 $c2015
520 $aEggs, nymphs (1st-5th instar) and adults of Tibraca limbativentris were challenged by conidial suspensions of its major fungal pathogen Metarhizium anisopliae in order to assess their susceptibility. The role of chemical defensive compounds from exocrine secretions produced by both nymphs and adults were examined for their participation on M. anisopliae infection. Although insect susceptibility to M. anisopliae followed a dose-dependent manner, adults followed by older nymphs displayed the highest resistance. Eggs were highly susceptible showing >96% fungal infection. Crude extracts isolated from metathoracic scent gland and dorsal abdominal glands of adults and nymphs, respectively, showed fungistatic effects by impairing spore germination, vegetative growth and sporulation. Gas chromatography-mass spectrometry analysis of these extracts revealed that the major components were short-chain hydrocarbons (C10-13) and unsaturated aldehydes. In vitro tests with the corresponding synthetic standards indicated compounds with greater antifungal activity including (E)-2-hexenal, (E)-2-octenal, and (E)-2-decenal, with the latter being the most deleterious to fungal fitness. We demonstrated that differential susceptibility of the rice stalk stink bug to M. anisopliae infection is age-specific and partly mediated by fungistatic properties of aldehydes, which are produced by scent glands of both nymphs and adults.
650 $aAllelochemicals
650 $aChemical ecology
650 $aClavicipitaceae
650 $aVirulence
650 $aArroz
650 $aFungo
650 $aMetarhizium anisopliae
650 $aOryza sativa
650 $aTibraca limbativentris
700 1 $aQUINTELA, E. D.
700 1 $aMASCARIN, G. M.
700 1 $aPEDRINI, N.
700 1 $aLIÃO, L. M.
700 1 $aFERRI, P. H.
773 $tJournal of Invertebrate Pathology$gv. 127, p. 93-100, 2015.
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Embrapa Arroz e Feijão (CNPAF) |
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| 1. |  | TRAJANO, S. R. R. da S.; SPADOTTO, C. A.; HOLLER, W. A.; DALTIO, J.; MARTINHO, P. R. R.; FOIS, N. S.; SANTOS, B. B. de O.; TOSCHI, H. H.; LISBOA, F. S. Análise Morfométrica de Bacia Hidrográfica: Subsídio à Gestão Territorial Estudo de Caso no Alto e Médio Mamanguape. Campinas: Embrapa Gestão Territorial, 2012. 33 p. (Embrapa Gestão Territorial. Boletim de Pesquisa e Desenvolvimento, 2).| Tipo: Boletim de Pesquisa e Desenvolvimento |
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| 2. | | DALTIO, J.; CARVALHO, C. A. de; MARTINHO, P. R. R.; MAGALHÃES, L. A.; MIRANDA, E. E. de; TRAJANO, S. R. DA S.; TOSCHI, H.; SANTOS, B. O.; LISBOA, F. S. GeoPAC: Sistema de Monitoramento de Obras do PAC. Campinas: Embrapa Gestão Territorial, 2013. 19 p. (Embrapa Gestão Territorial. Circular Técnica, 1).| Biblioteca(s): Embrapa Territorial. |
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