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| Registros recuperados : 12 | |
| 1. |  | ALVES, S. A. M.; FURTADO, G. Q.; GODOY, C. V.; BERGAMIN FILHO, A. Efeito da temperatura e do período de molhamento na formação de apressórios de Phakopsora pachyrhizi. Fitopatologia Brasileira, Brasília, v. 29, p. S208, ago. 2004. Suplemento. Resumo apresentado no XXXVII Congresso Brasileiro de Fitopatologia, Gramado, RS, agosto, 2004.| Biblioteca(s): Embrapa Soja. |
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| 2. | | ALVES, S. A. M.; FURTADO, G. Q.; GODOY, C. V.; BERGAMIN FILHO, A. Efeito da temperatura e do período de molhamento na germinação de Phakopsora pachyrhizi. Fitopatologia Brasileira, Brasília, v. 29, p. S207, ago. 2004. Suplemento. Resumo apresentado no XXXVII Congresso Brasileiro de Fitopatologia, Gramado, RS, agosto, 2004.| Biblioteca(s): Embrapa Soja. |
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| 4. | | ALVES, S. A.; FURTADO, G. Q.; CARNEIRO, L. C.; GODOY, C. V.; BERGAMIN FILHO, A. Influência da temperatura e da duração do período de molhamento foliar no desenvolvimento da ferrugem da soja. Fitopatologia Brasileira, Brasília, DF, v. 30, p. S 127, ago. 2005. Suplemento. ref. 431. Edição dos Resumos do XXXVIII Congresso Brasileiro de Fitopatologia, Brasília, DF, ago. 2005.| Biblioteca(s): Embrapa Soja. |
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| 8. | | CARNEIRO. L. C.; ALVES, S. A. M.; FURTADO, G. Q.; GODOY, C. V.; COSTA, T. N.; AMORIM, L. Avaliação da resistência de genótipos de soja à Phakopsora pachyrhizi. Fitopatologia Brasileira, Brasília, DF, v. 31, p. S259, ago. 2006. Suplemento. Edição dos Resumos do XXXIX Congresso Brasileiro de Fitopatologia, Salvador, BA, ago. 2006.| Biblioteca(s): Embrapa Soja. |
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| 9. | | FURTADO, G. Q.; MORAES, S. R. G.; ALVES, S. A. M.; AMORIM, L.; MASSOLA JUNIOR, N. S. The infection of soybean leaves by Phakopsora pachyrhizi during conditions of discontinuous wetness. Journal of Phytopathology, Berlin, v. 159, n. 3, p. 165-170, mar. 2011. 159 165-170| Biblioteca(s): Embrapa Uva e Vinho. |
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| 10. | | FURTADO, G. Q.; ALVES, S. A. M.; CARNEIRO, L. C.; GODOY, C. V.; MASSOLA JÚNIOR, N. S. Influência do estádio fenológico e da idade dos trifólios de soja na infecção de Phakopsora pachyrhizi. Tropical Plant Pathology, Brasília, DF, v. 34, n. 2, p. 118-122, 2009. Nota técnica.| Biblioteca(s): Embrapa Soja; Embrapa Uva e Vinho. |
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| 11. | | FURTADO, G. Q.; ALVES, S. A. M.; GODOY, C. V.; SALATINO, M. L. F.; MASSOLA JÚNIOR, N. S. Influência da luminosidade e da camada de cera epicuticular de superfícies de folhas de soja na infecção de Phakopsora pachyrhizi. Tropical Plant Pathology, Brasília, DF, v. 34, n. 5, p. 306-312, Sept./Oct. 2009.| Biblioteca(s): Embrapa Soja. |
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| 12. | | FURTADO, G. Q.; ALVES, S. A. M.; CARNEIRO, L. C.; GODOY, C. V.; MASSOLA JUNIOR, N. S. . Q., ALVES, S. A. M., CARNEIRO, L.C., -. Influência da idade dos trifólios da soja na suscetibilidade à ferrugem asiática. Fitopatologia Brasileira, Brasília, DF, v. 30, p. S 127, ago. 2005. Suplemento. ref. 428. Edição dos Resumos do XXXVIII Congresso Brasileiro de Fitopatologia, Brasília, DF, ago. 2005.| Biblioteca(s): Embrapa Soja. |
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| Registros recuperados : 12 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Uva e Vinho. |
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Data corrente: |
17/02/2011 |
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Data da última atualização: |
20/05/2019 |
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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: |
FURTADO, G. Q.; MORAES, S. R. G.; ALVES, S. A. M.; AMORIM, L.; MASSOLA JUNIOR, N. S. |
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Afiliação: |
GLEIBER QUINTÃO FURTADO, UFV; SYLVIA RAQUEL GOMES MORAES, ESALQ/USP; SILVIO ANDRE MEIRELLES ALVES, CNPUV; LILIAN AMORIM, UFV; NELSON SIDNEI MASSOLA JUNIOR, UFV. |
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Título: |
The infection of soybean leaves by Phakopsora pachyrhizi during conditions of discontinuous wetness. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Journal of Phytopathology, Berlin, v. 159, n. 3, p. 165-170, mar. 2011. |
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Volume: |
159 |
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Páginas: |
165-170 |
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DOI: |
10.1111/j.1439-0434.2010.01742.x |
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Idioma: |
Inglês |
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Conteúdo: |
The ability of Phakopsora pachyrhizi to cause infection under conditions of discontinuous wetness was investigated. In in vitro experiments, droplets of a uredospore suspension were deposited onto the surface of polystyrene. After an initial wetting period of either 1, 2 or 4 h, the drops were dried for different time intervals and then the wetness was restored for 11, 10 or 8 h. Germination and appressorium formation were evaluated. In in vivo experiments, soybean plants were inoculated with a uredospore suspension. Leaf wetness was interrupted for 1, 3 or 6 h after initial wetting periods of 1, 2 or 4 h. Then, the wetting was re-established for 11, 10 or 8 h, respectively. Rust severity was evaluated 14 days after inoculation. The germination of the spores and the formation of the appressoria on the soybean leaves after different periods of wetness were also quantified in vivo by scanning electron microscopy. P. pachyrhizi showed a high infective capacity during short periods of time. An interruption of wetness after 1 h caused average reductions in germination from 56 to 75% and in appressorium formation from 84 to 96%. Rust severity was lower in all of the in vivo treatments with discontinuous wetness when compared to the control plants. Rust severity was zero when the interruption of wetness occurred 4 h after the initial wetting. Wetting interruptions after 1 and 2 h reduced the average rust severity by 83 and 77%, respectively. The germination of the uredospores on the soybean leaves occurred after 2 h of wetness, with a maximum germination appearing after 4 h of wetness. Wetness interruption affected mainly the spores that had initiated the germination. MenosThe ability of Phakopsora pachyrhizi to cause infection under conditions of discontinuous wetness was investigated. In in vitro experiments, droplets of a uredospore suspension were deposited onto the surface of polystyrene. After an initial wetting period of either 1, 2 or 4 h, the drops were dried for different time intervals and then the wetness was restored for 11, 10 or 8 h. Germination and appressorium formation were evaluated. In in vivo experiments, soybean plants were inoculated with a uredospore suspension. Leaf wetness was interrupted for 1, 3 or 6 h after initial wetting periods of 1, 2 or 4 h. Then, the wetting was re-established for 11, 10 or 8 h, respectively. Rust severity was evaluated 14 days after inoculation. The germination of the spores and the formation of the appressoria on the soybean leaves after different periods of wetness were also quantified in vivo by scanning electron microscopy. P. pachyrhizi showed a high infective capacity during short periods of time. An interruption of wetness after 1 h caused average reductions in germination from 56 to 75% and in appressorium formation from 84 to 96%. Rust severity was lower in all of the in vivo treatments with discontinuous wetness when compared to the control plants. Rust severity was zero when the interruption of wetness occurred 4 h after the initial wetting. Wetting interruptions after 1 and 2 h reduced the average rust severity by 83 and 77%, respectively. The germination of the uredospores on th... Mostrar Tudo |
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Thesagro: |
Doença de planta; Ferrugem; Folha; Fungo; Soja; Umidade. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/27516/1/SILVIO-JPhytopathol-v159p165-2011.pdf
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Marc: |
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024 7 $a10.1111/j.1439-0434.2010.01742.x$2DOI
100 1 $aFURTADO, G. Q.
245 $aThe infection of soybean leaves by Phakopsora pachyrhizi during conditions of discontinuous wetness.$h[electronic resource]
260 $c2011
300 $a165-170 159
490 $v159
520 $aThe ability of Phakopsora pachyrhizi to cause infection under conditions of discontinuous wetness was investigated. In in vitro experiments, droplets of a uredospore suspension were deposited onto the surface of polystyrene. After an initial wetting period of either 1, 2 or 4 h, the drops were dried for different time intervals and then the wetness was restored for 11, 10 or 8 h. Germination and appressorium formation were evaluated. In in vivo experiments, soybean plants were inoculated with a uredospore suspension. Leaf wetness was interrupted for 1, 3 or 6 h after initial wetting periods of 1, 2 or 4 h. Then, the wetting was re-established for 11, 10 or 8 h, respectively. Rust severity was evaluated 14 days after inoculation. The germination of the spores and the formation of the appressoria on the soybean leaves after different periods of wetness were also quantified in vivo by scanning electron microscopy. P. pachyrhizi showed a high infective capacity during short periods of time. An interruption of wetness after 1 h caused average reductions in germination from 56 to 75% and in appressorium formation from 84 to 96%. Rust severity was lower in all of the in vivo treatments with discontinuous wetness when compared to the control plants. Rust severity was zero when the interruption of wetness occurred 4 h after the initial wetting. Wetting interruptions after 1 and 2 h reduced the average rust severity by 83 and 77%, respectively. The germination of the uredospores on the soybean leaves occurred after 2 h of wetness, with a maximum germination appearing after 4 h of wetness. Wetness interruption affected mainly the spores that had initiated the germination.
650 $aDoença de planta
650 $aFerrugem
650 $aFolha
650 $aFungo
650 $aSoja
650 $aUmidade
700 1 $aMORAES, S. R. G.
700 1 $aALVES, S. A. M.
700 1 $aAMORIM, L.
700 1 $aMASSOLA JUNIOR, N. S.
773 $tJournal of Phytopathology, Berlin$gv. 159, n. 3, p. 165-170, mar. 2011.
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