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Registro Completo |
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
23/02/2012 |
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Data da última atualização: |
30/04/2024 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
TOGNI, P. H. B.; CAVALCANTE, K. R.; MEDEIROS, M. A. de; MAROUELLI, W. A.; SUJII, E. R. |
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Afiliação: |
K. R. CAVALCANTE; MARIA ALICE DE MEDEIROS, DPD; WALDIR APARECIDO MAROUELLI, CNPH; EDISON RYOITI SUJII, CENARGEN. |
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Título: |
Controle biológico conservativo de Bemisia tabaci Biótipo B e Tuta absoluta em tomateiro orgânico. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
In: SIMPÓSIO DE CONTROLE BIOLÓGICO, 12., 2011, São Paulo. Mudanças climáticas e sustentabilidade: quebra de paradigmas: anais. São Paulo: Sociedade Entomológica do Brasil, 2011. PT.02.30. |
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Páginas: |
p. 174 |
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Idioma: |
Português |
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Palavras-Chave: |
Agroecologia; Consórcio; Manejo de pragas. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00732nam a2200193 a 4500
001 1916246
005 2024-04-30
008 2011 bl uuuu u01u1 u #d
100 1 $aTOGNI, P. H. B.
245 $aControle biológico conservativo de Bemisia tabaci Biótipo B e Tuta absoluta em tomateiro orgânico.
260 $aIn: SIMPÓSIO DE CONTROLE BIOLÓGICO, 12., 2011, São Paulo. Mudanças climáticas e sustentabilidade: quebra de paradigmas: anais. São Paulo: Sociedade Entomológica do Brasil, 2011. PT.02.30.$c2011
300 $ap. 174
653 $aAgroecologia
653 $aConsórcio
653 $aManejo de pragas
700 1 $aCAVALCANTE, K. R.
700 1 $aMEDEIROS, M. A. de
700 1 $aMAROUELLI, W. A.
700 1 $aSUJII, E. R.
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Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
15/12/2016 |
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Data da última atualização: |
06/12/2017 |
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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: |
FARIA, M.; MARTINS, I.; SOUZA, D. A.; MASCARIN, G. M.; LOPES, R. B. |
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Afiliação: |
MARCOS RODRIGUES DE FARIA, Cenargen; IRENE MARTINS, Cenargen; DANIELA AGUIAR DE SOUZA, Cenargen; GABRIEL MOURA MASCARIN, CNPAF; ROGERIO BIAGGIONI LOPES, Cenargen. |
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Título: |
Susceptibility of the biocontrol fungi Metarhizium anisopliae and Trichoderma asperellum (Ascomycota: Hypocreales) to imbibitional damage is driven by conidial vigor. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Biological Control, v. 107, p. 87-94, 2017. |
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ISSN: |
1049-9644 |
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DOI: |
10.1016/j.biocontrol.2017.01.015 |
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Idioma: |
Inglês |
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Conteúdo: |
Imbibition damage (ID) is a phenomenon characterized by the death of dehydrated conidia when immersed in water at temperatures ? ca. 25 °C, as a result of the transition in the conformation of the plasma membrane in the presence of free water. In the present study we evaluated the susceptibility to ID of eight major species or varieties of fungi used in biological control programs in several countries (Isaria farinosa, I. fumosorosea, I. javanica, Nomuraea rileyi, Pochonia chlamydosporia var. catenulata, P. chlamydosporia var. chlamydosporia, Purpureocillium lilacinum, and Trichoderma asperellum). A commercial isolate of Metarhizium anisopliae sensu stricto, known to be sensitive to ID, was also included. Within all tested taxa, significant reductions in germination of dehydrated conidia after immersion in cold water (15 °C) compared to immersion in warm water (33?37 °C) were reported, due to delayed germination and/or ID. Additional tests with dehydrated M. anisopliae and T. asperellum conidia produced on different substrates revealed that susceptibility to ID was greatly impacted by vigor (% dehydrated conidia with rapid germination). Low mortality (1?7%) of dehydrated conidia immersed in cold water was observed when vigor was ?95%. Conversely, mortality was ?20% when vigor ranged from 50 to 90%. We hypothesize that, in vigorous dehydrated conidia, the cell wall is capable of slowing down water influx, allowing rehydration of the cell membrane by water vapors before contact with free water, thus mitigating ID. The marked effect of conidial quality on susceptibility of M. anisopliae and T. asperellum to ID highlights the need for production and post-production procedures (drying, harvesting, formulation and packaging) that ensure high vigor of conidia used as active ingredients in mycopesticides with low water contents. MenosImbibition damage (ID) is a phenomenon characterized by the death of dehydrated conidia when immersed in water at temperatures ? ca. 25 °C, as a result of the transition in the conformation of the plasma membrane in the presence of free water. In the present study we evaluated the susceptibility to ID of eight major species or varieties of fungi used in biological control programs in several countries (Isaria farinosa, I. fumosorosea, I. javanica, Nomuraea rileyi, Pochonia chlamydosporia var. catenulata, P. chlamydosporia var. chlamydosporia, Purpureocillium lilacinum, and Trichoderma asperellum). A commercial isolate of Metarhizium anisopliae sensu stricto, known to be sensitive to ID, was also included. Within all tested taxa, significant reductions in germination of dehydrated conidia after immersion in cold water (15 °C) compared to immersion in warm water (33?37 °C) were reported, due to delayed germination and/or ID. Additional tests with dehydrated M. anisopliae and T. asperellum conidia produced on different substrates revealed that susceptibility to ID was greatly impacted by vigor (% dehydrated conidia with rapid germination). Low mortality (1?7%) of dehydrated conidia immersed in cold water was observed when vigor was ?95%. Conversely, mortality was ?20% when vigor ranged from 50 to 90%. We hypothesize that, in vigorous dehydrated conidia, the cell wall is capable of slowing down water influx, allowing rehydration of the cell membrane by water vapors before contac... Mostrar Tudo |
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Palavras-Chave: |
Imbibitional damage; Mycopesticide. |
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Thesagro: |
Controle biológico; Fungo entomogeno. |
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Thesaurus NAL: |
Cell walls; Drying; Entomopathogenic fungi; Plasma membrane; Vigor. |
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Categoria do assunto: |
O Insetos e Entomologia |
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Marc: |
LEADER 02783naa a2200301 a 4500
001 2058691
005 2017-12-06
008 2017 bl uuuu u00u1 u #d
022 $a1049-9644
024 7 $a10.1016/j.biocontrol.2017.01.015$2DOI
100 1 $aFARIA, M.
245 $aSusceptibility of the biocontrol fungi Metarhizium anisopliae and Trichoderma asperellum (Ascomycota$bHypocreales) to imbibitional damage is driven by conidial vigor.$h[electronic resource]
260 $c2017
520 $aImbibition damage (ID) is a phenomenon characterized by the death of dehydrated conidia when immersed in water at temperatures ? ca. 25 °C, as a result of the transition in the conformation of the plasma membrane in the presence of free water. In the present study we evaluated the susceptibility to ID of eight major species or varieties of fungi used in biological control programs in several countries (Isaria farinosa, I. fumosorosea, I. javanica, Nomuraea rileyi, Pochonia chlamydosporia var. catenulata, P. chlamydosporia var. chlamydosporia, Purpureocillium lilacinum, and Trichoderma asperellum). A commercial isolate of Metarhizium anisopliae sensu stricto, known to be sensitive to ID, was also included. Within all tested taxa, significant reductions in germination of dehydrated conidia after immersion in cold water (15 °C) compared to immersion in warm water (33?37 °C) were reported, due to delayed germination and/or ID. Additional tests with dehydrated M. anisopliae and T. asperellum conidia produced on different substrates revealed that susceptibility to ID was greatly impacted by vigor (% dehydrated conidia with rapid germination). Low mortality (1?7%) of dehydrated conidia immersed in cold water was observed when vigor was ?95%. Conversely, mortality was ?20% when vigor ranged from 50 to 90%. We hypothesize that, in vigorous dehydrated conidia, the cell wall is capable of slowing down water influx, allowing rehydration of the cell membrane by water vapors before contact with free water, thus mitigating ID. The marked effect of conidial quality on susceptibility of M. anisopliae and T. asperellum to ID highlights the need for production and post-production procedures (drying, harvesting, formulation and packaging) that ensure high vigor of conidia used as active ingredients in mycopesticides with low water contents.
650 $aCell walls
650 $aDrying
650 $aEntomopathogenic fungi
650 $aPlasma membrane
650 $aVigor
650 $aControle biológico
650 $aFungo entomogeno
653 $aImbibitional damage
653 $aMycopesticide
700 1 $aMARTINS, I.
700 1 $aSOUZA, D. A.
700 1 $aMASCARIN, G. M.
700 1 $aLOPES, R. B.
773 $tBiological Control$gv. 107, p. 87-94, 2017.
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