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Registro Completo |
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia; Embrapa Uva e Vinho. |
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Data corrente: |
14/02/2013 |
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Data da última atualização: |
22/02/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LOPES, R. B.; SILVA, S. D.; TIGANO, M. S.; BOTTON, M. |
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Afiliação: |
ROGERIO BIAGGIONI LOPES, CENARGEN; SILAS DUTRA SILVA, UNB; MYRIAN SILVANA TIGANO, DE-PR; MARCOS BOTTON, CNPUV. |
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Título: |
Entomopathogenic fungi as potential control agents against the Brazilian ground pearl Eurhizococcus brasiliensis (Hemiptera: Margarodidae). |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Revista Colombiana de Entomología, Santafé de Bogota, v. 38, n. 2, p. 247-251, 2012. |
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Idioma: |
Inglês |
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Conteúdo: |
The Brazilian ground pearl Eurhizococcus brasiliensis is the most prevalent insect pest of grapes in Brazil. The natural occurrence and biological activity of entomopathogenic fungi (EF) against this pest are poorly known. In this study, we evaluate the presence of E. brasiliensis-associated EF in soil and the virulence of a ground pearl-derived strain of Isaria fumosorosea against cysts under laboratory conditions. EF were not identified on cysts in an initial survey performed in a grape-producing area in southern Brazil. However, 6% of mobile females that had emerged from cysts were infected by Metarhizium brunneum, which was the first report of this insect pathogen on ground pearls in Brazil. Cysts without the protective wax layer were inoculated with I. fumosorosea conidia suspension by immersion. The symptoms and the signs of the disease were described. Infected cysts had a yellow-ochre color and ?hard-boiled egg? consistency when broken, in contrast to the intense bright yellow color and ?raw egg? consistency of living cysts. Vegetative fungal cells were present inside symptomatic cysts, and later, outside conidiation was visible. The LC25 for the cysts protected with the wax layer and also inoculated by immersion was 1.31 x 107 conidia·mL-1. However, the presence of fungal structures was not observed on symptomatic individuals. Considering the motionlessness of cysts and the absence of disease signs for mortality assessment, the symptoms described may be helpful for further studies on E. brasiliensis control using I. fumosorosea. MenosThe Brazilian ground pearl Eurhizococcus brasiliensis is the most prevalent insect pest of grapes in Brazil. The natural occurrence and biological activity of entomopathogenic fungi (EF) against this pest are poorly known. In this study, we evaluate the presence of E. brasiliensis-associated EF in soil and the virulence of a ground pearl-derived strain of Isaria fumosorosea against cysts under laboratory conditions. EF were not identified on cysts in an initial survey performed in a grape-producing area in southern Brazil. However, 6% of mobile females that had emerged from cysts were infected by Metarhizium brunneum, which was the first report of this insect pathogen on ground pearls in Brazil. Cysts without the protective wax layer were inoculated with I. fumosorosea conidia suspension by immersion. The symptoms and the signs of the disease were described. Infected cysts had a yellow-ochre color and ?hard-boiled egg? consistency when broken, in contrast to the intense bright yellow color and ?raw egg? consistency of living cysts. Vegetative fungal cells were present inside symptomatic cysts, and later, outside conidiation was visible. The LC25 for the cysts protected with the wax layer and also inoculated by immersion was 1.31 x 107 conidia·mL-1. However, the presence of fungal structures was not observed on symptomatic individuals. Considering the motionlessness of cysts and the absence of disease signs for mortality assessment, the symptoms described may be helpful for f... Mostrar Tudo |
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Palavras-Chave: |
Pérola-da-terra. |
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Thesagro: |
Controle biológico; Eurhizococcus Brasiliensis; Praga de planta; Uva; Viticultura. |
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Thesaurus Nal: |
Isaria fumosorosea; Metarhizium brunneum. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/76400/1/RCdE-2012-v38n2a14-pp247-251-Entomopathogenic-FINAL-2012-19.pdf
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Marc: |
LEADER 02384naa a2200253 a 4500
001 1949274
005 2016-02-22
008 2012 bl uuuu u00u1 u #d
100 1 $aLOPES, R. B.
245 $aEntomopathogenic fungi as potential control agents against the Brazilian ground pearl Eurhizococcus brasiliensis (Hemiptera$bMargarodidae).$h[electronic resource]
260 $c2012
520 $aThe Brazilian ground pearl Eurhizococcus brasiliensis is the most prevalent insect pest of grapes in Brazil. The natural occurrence and biological activity of entomopathogenic fungi (EF) against this pest are poorly known. In this study, we evaluate the presence of E. brasiliensis-associated EF in soil and the virulence of a ground pearl-derived strain of Isaria fumosorosea against cysts under laboratory conditions. EF were not identified on cysts in an initial survey performed in a grape-producing area in southern Brazil. However, 6% of mobile females that had emerged from cysts were infected by Metarhizium brunneum, which was the first report of this insect pathogen on ground pearls in Brazil. Cysts without the protective wax layer were inoculated with I. fumosorosea conidia suspension by immersion. The symptoms and the signs of the disease were described. Infected cysts had a yellow-ochre color and ?hard-boiled egg? consistency when broken, in contrast to the intense bright yellow color and ?raw egg? consistency of living cysts. Vegetative fungal cells were present inside symptomatic cysts, and later, outside conidiation was visible. The LC25 for the cysts protected with the wax layer and also inoculated by immersion was 1.31 x 107 conidia·mL-1. However, the presence of fungal structures was not observed on symptomatic individuals. Considering the motionlessness of cysts and the absence of disease signs for mortality assessment, the symptoms described may be helpful for further studies on E. brasiliensis control using I. fumosorosea.
650 $aIsaria fumosorosea
650 $aMetarhizium brunneum
650 $aControle biológico
650 $aEurhizococcus Brasiliensis
650 $aPraga de planta
650 $aUva
650 $aViticultura
653 $aPérola-da-terra
700 1 $aSILVA, S. D.
700 1 $aTIGANO, M. S.
700 1 $aBOTTON, M.
773 $tRevista Colombiana de Entomología, Santafé de Bogota$gv. 38, n. 2, p. 247-251, 2012.
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Registro original: |
Embrapa Uva e Vinho (CNPUV) |
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Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
12/01/2004 |
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Data da última atualização: |
31/05/2021 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
PEREIRA, V. M.; ALENCAR, M. M. de; ESPASANDIN, A. C. |
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Afiliação: |
MAURICIO MELLO DE ALENCAR, CPPSE. |
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Título: |
Genetic correlation for male and female growth traits and female age at first calving and adult body weight in a Canchim beef cattle herd. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
In: WORLD CONFERENCE ON ANIMAL PRODUCTION, 9., 2003, Porto Alegre. Proceedings... Porto Alegre: SBZ: WAAP: ALPA: UFRGS, 2003. |
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Páginas: |
p.237. |
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Idioma: |
Inglês |
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Thesagro: |
Gado de corte. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/49083/1/PROCIMMA2003.00169.pdf
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Marc: |
LEADER 00593nam a2200145 a 4500
001 1046675
005 2021-05-31
008 2003 bl uuuu u00u1 u #d
100 1 $aPEREIRA, V. M.
245 $aGenetic correlation for male and female growth traits and female age at first calving and adult body weight in a Canchim beef cattle herd.$h[electronic resource]
260 $aIn: WORLD CONFERENCE ON ANIMAL PRODUCTION, 9., 2003, Porto Alegre. Proceedings... Porto Alegre: SBZ: WAAP: ALPA: UFRGS$c2003
300 $ap.237.
650 $aGado de corte
700 1 $aALENCAR, M. M. de
700 1 $aESPASANDIN, A. C.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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