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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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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: |
LEADER 02488naa a2200277 a 4500
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008 2011 bl uuuu u00u1 u #d
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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Registro original: |
Embrapa Uva e Vinho (CNPUV) |
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| Registros recuperados : 15 | |
| 4. |  | RIBEIRO, M. A. C.; CARVALHO, J. E. U. de; NASCIMENTO, W. M. O. do. Enxertia da gravioleira (Annona muricata L.) em porta-enxertos dos gêneros Annona e Rollinia. In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA FCAP, 10.; SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA AMAZÔNIA ORIENTAL, 4., 2000, Belém, PA. Resumos. Belém, PA: FCAP, 2000. p. 137-139.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 5. | | RIBEIRO, M. A. C.; CARVALHO, J. E. U. de; NASCIMENTO, W. M. O. do. Efeitos do dessecamento sobre a germinação de sementes de Araticum-do-brejo (Annona glabra). In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA FCAP, 9.; SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA AMAZÔNIA ORIENTAL, 3., 1999, Belém, PA. Resumos. Belém, PA: FCAP: Embrapa Amazônia Oriental, 1999. p. 68-69.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 7. | | CARVALHO, C. J. R. de; CARVALHO, J. E. U. de; RIBEIRO, M. A. C. Relações hídricas de gravioleiras (Annona muricata L.) jovens em porta-enxertos dos gêneros Annona e Rollinia. In: CONGRESSO BRASILEIRO DE FRUTICULTURA, 17., 2002, Belém, PA. Anais. Belém: SBF, 2002. 4 f. Publicado também: FRAZÃO, D. A. C.; HOMMA, A. K. O; VIÉGAS, I. de J. M. (Ed.). Contribuição ao desenvolvimento da fruticultura na Amazônia. Belém, PA: Embrapa Amazônia Oriental, 2006. p. 543-548.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 8. | | MEDEIROS, M. A. de; RIBEIRO, M. A.; MORAIS, H. C.; CASTELO BRANCO, M.; SUJII, E. R.; SALGADO LABORIAU, M. L. Identification of plant families associated with the predators Chrysoperla externa (Hagen) (Neutoptera: Chrysopidae) and Hippodamia convergens Guérin-Menéville (Coleoptera: Coccinelidae) using pollen grain as a natural marker. Brazilian Journal of Biology, v. 70, n. 2, p. 293-300, 2010.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 10. | | RIBEIRO, M. A. C.; CARVALHO, J. E. U. de; MÜLLER, C. H.; NASCIMENTO, W. M. O. do. Enxertia da gravioleira (Annona muricata L.) em porta-enxertos dos generos Annona e Rollinia. In: CONGRESSO BRASILEIRO DE FRUTICULTURA, 17., 2002, Belém, PA. Anais. Belém: SBF, 2002. 3f. Publicado também: FRAZÃO, D. A. C.; HOMMA, A. K. O; VIÉGAS, I. de J. M. (Ed.). Contribuição ao desenvolvimento da fruticultura na Amazônia. Belém, PA: Embrapa Amazônia Oriental, 2006. p. 537-542.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 11. | | GRATTAPAGLIA, D.; SCHMIDT, A. B.; DIENER, P. S. A.; RIBEIRO, M. A. N.; SOARES, C. N.; FERREIRA, M. E. Microsatellite based genetic variation of old planted araucaria angustifolia forests in Paraná is comparable to that in primary forest stands. In: CONGRESSO BRASILEIRO DE GENÉTICA, 51., 2005, Águas de Lindóia, SP. A era da genômica: da bioestatística à bioinformática: anais. Ribeirão Preto, SP: Sociedade Brasileira de Genética, 2005. p. 691.| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 14. | | FRASCA-SCORVO, C. M. D.; LOSEKANN, M. E.; SCORVO FILHO, J. D.; CESNIK, R.; QUEIROZ, J. F. de; RIBEIRO, M. A. G.; ALVES, J. M. C.; DONADELLI, A.; TURCO, P. H. N. Avaliação do cultivo de tilápias em tanques-rede em uma represa rural: efeito da densidade no desempenho zootécnico. In: CONGRESSO DE AQUACIÊNCIA, 2008, Maringá. Desafios e inovação: resumos. Maringá: Aquabio:: UEM, 2008. 1p. CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 15. | | COSTA, N. de L.; MENDONCA, J. F. B.; MAGALHAES, J. A.; PEREIRA, R. G. de A.; SILVA NETTO, F. G. da; RIBEIRO, M. A. G.; ARAGAO, J. L. de; CSTRO, G. C. de. Diagnostico da pecuaria em Rondonia. Porto Velho: [s.n.], 1990. 56p. Ordem de servico No.002/90, de 26.04.90.| Biblioteca(s): Embrapa Rondônia. |
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| Registros recuperados : 15 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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