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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
25/04/2007 |
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Data da última atualização: |
27/04/2007 |
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Autoria: |
SOUZA, J. de; FORMENTO, N.; BOCA, T.; GODOY, C.; RIDAO, A. del C. |
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Título: |
Effect of low temperatures on the survival of Phakopsora pachyrhizi urediniosopres in overwinter volunteer soybean plants in Entre Rios Province, Argentina. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
In: NATIONAL SOYBEAN RUST SYMPOSIUM, 2006, St. Louis. Poster abstracts. [S.l.]: APS, 2006. |
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Páginas: |
p. 4. |
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Idioma: |
Inglês |
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Notas: |
Poster 3. Nome correto do quarto autor GODOY, C. V. |
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Conteúdo: |
Temperature is probably the most important of the environmental factors affecííng Phakopsora pachyrhizi survival over the winter and it has been reported that there is no spore germination below 7°C. However, erumpent uredinia of Asian soybean rust (ASR) were observed in volunteer soybean plants during the overwintering periods of the 2004-2005 and 2005-2006 growing seasons in Entre Rios province (ER). This situation may generate a new risk for Argentina. The objective of this study was to analyze the effect of low temperatures on the survival of Phakopsora pachyrhizi urediniospores under controlled conditions. Soybean leaflets with ASR and free urediniospores were exposed to temperatures between -10 and 25°C during l, 3, 5, 7, and 24 h in a controlled environment chamber. The germination rate was evaluated as an indicator of urediniospores to resist stress conditions due to frost during the overwintering period. Then, water agar plates (2%) were incubated for 6 and 22 h, and the percentage of germinated spores was assessed by counting (n = 200). Up to -10°C, gennination was observed, and a greater effect of low temperature was registered with prolonged exposure periods. If optimal conditions occurred during the 22 h after the exposure to coldness, germination was increased by approximately 50%. Low temperatures would therefore not constitute a limiting factor for P. pachyrhizi survival in ER and urediniospores may remain active on the volunteer soybean plants until the establishment of new soybean lots. Commercial cultures and volunteer soybean plants would represent the main reservoirs of the disease in ER. MenosTemperature is probably the most important of the environmental factors affecííng Phakopsora pachyrhizi survival over the winter and it has been reported that there is no spore germination below 7°C. However, erumpent uredinia of Asian soybean rust (ASR) were observed in volunteer soybean plants during the overwintering periods of the 2004-2005 and 2005-2006 growing seasons in Entre Rios province (ER). This situation may generate a new risk for Argentina. The objective of this study was to analyze the effect of low temperatures on the survival of Phakopsora pachyrhizi urediniospores under controlled conditions. Soybean leaflets with ASR and free urediniospores were exposed to temperatures between -10 and 25°C during l, 3, 5, 7, and 24 h in a controlled environment chamber. The germination rate was evaluated as an indicator of urediniospores to resist stress conditions due to frost during the overwintering period. Then, water agar plates (2%) were incubated for 6 and 22 h, and the percentage of germinated spores was assessed by counting (n = 200). Up to -10°C, gennination was observed, and a greater effect of low temperature was registered with prolonged exposure periods. If optimal conditions occurred during the 22 h after the exposure to coldness, germination was increased by approximately 50%. Low temperatures would therefore not constitute a limiting factor for P. pachyrhizi survival in ER and urediniospores may remain active on the volunteer soybean plants until the esta... Mostrar Tudo |
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Categoria do assunto: |
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Marc: |
LEADER 02313naa a2200193 a 4500
001 1453484
005 2007-04-27
008 2006 bl uuuu u00u1 u #d
100 1 $aSOUZA, J. de
245 $aEffect of low temperatures on the survival of Phakopsora pachyrhizi urediniosopres in overwinter volunteer soybean plants in Entre Rios Province, Argentina.
260 $c2006
300 $ap. 4.
500 $aPoster 3. Nome correto do quarto autor GODOY, C. V.
520 $aTemperature is probably the most important of the environmental factors affecííng Phakopsora pachyrhizi survival over the winter and it has been reported that there is no spore germination below 7°C. However, erumpent uredinia of Asian soybean rust (ASR) were observed in volunteer soybean plants during the overwintering periods of the 2004-2005 and 2005-2006 growing seasons in Entre Rios province (ER). This situation may generate a new risk for Argentina. The objective of this study was to analyze the effect of low temperatures on the survival of Phakopsora pachyrhizi urediniospores under controlled conditions. Soybean leaflets with ASR and free urediniospores were exposed to temperatures between -10 and 25°C during l, 3, 5, 7, and 24 h in a controlled environment chamber. The germination rate was evaluated as an indicator of urediniospores to resist stress conditions due to frost during the overwintering period. Then, water agar plates (2%) were incubated for 6 and 22 h, and the percentage of germinated spores was assessed by counting (n = 200). Up to -10°C, gennination was observed, and a greater effect of low temperature was registered with prolonged exposure periods. If optimal conditions occurred during the 22 h after the exposure to coldness, germination was increased by approximately 50%. Low temperatures would therefore not constitute a limiting factor for P. pachyrhizi survival in ER and urediniospores may remain active on the volunteer soybean plants until the establishment of new soybean lots. Commercial cultures and volunteer soybean plants would represent the main reservoirs of the disease in ER.
700 1 $aFORMENTO, N.
700 1 $aBOCA, T.
700 1 $aGODOY, C.
700 1 $aRIDAO, A. del C.
773 $tIn: NATIONAL SOYBEAN RUST SYMPOSIUM, 2006, St. Louis. Poster abstracts. [S.l.]: APS, 2006.
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Registro original: |
Embrapa Soja (CNPSO) |
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| Registros recuperados : 13 | |
| 4. |  | MENDONÇA, J. F. M. De; SOUZA, G. N. de; DINIZ, F. H.; VICENTINI, N. M.; REIS, E. S. dos; PIRES, M. de F. A. Avaliação da qualidade do leite cru de propriedades de agricultura familiar produtoras de queijo parmesão artesanal de Alagoa e Bocaina de Minas Gerais In: SIMPÓSIO BRASILEIRO DE AGROPECUÁRIA SUSTENTÁVEL., 8.; INTERNATIONAL CONFERENCE ON SUSTAINABLE AGRICULTURE, 5. Sinop. Ciência, tecnologia e inovação para o desenvolvimento sustentável das novas fronteiras agrícolas: anais. [Sinop: SIMBRAS], 2016. p. 6-9.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 6. | | OLIVEIRA, V. M. de; MENDONCA, L. C.; MIRANDA, J. E. C. de; DINIZ, F. H.; REIS, E. S. dos; GUIMARAES, A. S.; MAGALHAES, V. M. A. de. Como identificar a vaca com mastite em sua propriedade: cartilhas elaboradas conforme a metodologia e-Rural. Brasília, DF: Embrapa, 2016. Ebook : il. color. Ebook no formato epub, convertido do livro impresso.| Tipo: Folder/Folheto/Cartilha |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 7. | | MONTEIRO, C. M. de O; KOLLER, W. W.; REIS, E. S. dos; VEGA, D. da S. M.; SILVA, N. J. de J. Correlação entre umidade, temperatura e número de besouros coprófagos (Coleoptera, Scarabaeidea) nas pastagens da Embrapa Gado de Leite. In:CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 22., 2008, Uberlândia. Ciência, tecnologia e inovação: anais. Viçosa, MG: UFV, 2008. 1 p.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Corte. |
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| 8. | | CARVALHO, L. B. de; FURLONG, J.; PRATA, M. C. de A.; REIS, E. S. dos; BATISTA, E. S. de P.; FAZA, A. P.; LEITE, R. C. Evaluation in vitro of the infection times of engorged females of Rhipicephalus(Boophilus) microplus by the entomopathogenic nematode Steinernema glaseri CCA strain. Ciência Rural, v. 40, n. 4, p. 919-943, 2010.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 9. | | REIS, E. S. dos; OLIVEIRA, R.; MONTEIRO, C. M. O.; BATISTA, E. S. P.; FURLONG, J.; PRATA, M. C. de A.; FAZA, A. P. Efeito da temperatura de 32º C sobre a eficácia de carrapaticidas no controle de fêmeas ingurgitadas de Boophilus microplus (Acari: ixodidae). In: CONGRESSO DE ECOLOGIA DO BRASIL, 8., 2007, Caxambu. Anais... Caxambu: SEB, 2007. 2 p.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 10. | | MATOS, J. P. C. de; OTENIO, M. H.; VICENTINI, N. M.; DINIZ, F. H.; REIS, E. S. dos; PIRES, M. de F. A. Qualidade da água em queijarias artesanais do município de Alagoa (MG) In: CONGRESSO NACIONAL DE LATICÍNIOS, 31., 2017, Juiz de Fora. Anais... Belo Horizonte: EPAMIG, 2017.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 11. | | OLIVEIRA, V. M. de; MENDONCA, L. C.; PIRES, M. de F. A.; REIS, E. S. dos; MIRANDA, J. E. C. de; DINIZ, F. H.; VICENTINI, N. M.; COSTA, L. R. da; MAGALHAES, V. M. A. de. Boas práticas de ordenha na propriedade familiar para obtenção de leite e queijo artesanal de qualidade : cartilhas elaboradas conforme metologia e-Rural. Brasília, DF: Embrapa, 2017. 40 p. il. color| Tipo: Folder/Folheto/Cartilha |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 12. | | COSTA, F. C. B. da; OLIVEIRA, T. C. de A.; SILVA, M. A. S.; VICENTINI, N. M.; PIRES, M. de F. A.; DINIZ, F. H.; REIS, E. S. dos; BRITO, M. A. V. P. e; LANGE, C. C. Pesquisa de Listeria monocytogenes e Salmonella spp. e contagem de Staphylococcus spp. coagulase positivos e coliformes em queijo artesanal produzido no município de Alagoa, Minas Gerais. In: WORKSHOP DE INICIAÇÃO CIENTÍFICA DA EMBRAPA GADO DE LEITE, 19., 2017, Juiz de Fora. Anais... Juiz de Fora: Embrapa Gado de Leite, 2017. (Embrapa Gado de Leite. Documentos, 200.). 1 p.| Biblioteca(s): Embrapa Gado de Leite. |
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| 13. | | CASTRO, C. R. T. de; VICENTINI, N. M.; LANGE, C. C.; DINIZ, F. H.; GAMA, M. A. S. da; MARTINS, C. E.; LOPES, F. C. F.; SOUZA, G. N. de; OTENIO, M. H.; SOBRAL, D.; COSTA, R. G. B.; REIS, E. S. dos; ARAÚJO, A. L. R.; MAGALHAES JUNIOR, W. C. P. de; PIRES, M. de F. A. Produção, qualidade microbiológica e aspectos nutricionais do queijo artesanal de Carvalhos-MG. Juiz de Fora: Embrapa Gado de Leite, 2023. 54 p. (Embrapa Gado de Leite. Boletim de Pesquisa e Desenvolvimento, 48). OSD 1, ODS 2, ODS 3, ODS 8, ODS 10.| Tipo: Boletim de Pesquisa e Desenvolvimento |
| Biblioteca(s): Embrapa Gado de Leite; Embrapa Pecuária Sudeste. |
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| Registros recuperados : 13 | |
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