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| Registros recuperados : 8 | |
| 2. |  | OLIVEIRA, J. T. A.; BARRETO, A. L. H.; VASCONCELOS, I. M.; ELOY, Y. R. G.; GONDIM, D. M. F.; FERNANDES, C. F.; FREIRE-FILHO, F. R. Role of antioxidant enzymes, hydrogen Peroxide and PR-Proteins in the compatible and incompatible interactions of cowpea (Vigna unguiculata) genotypes with the fungus Colletotrichum gloeosporioides. Journal of Plant Physiology & Pathology, v. 2, n. 3, 2014.| Biblioteca(s): Embrapa Meio-Norte; Embrapa Rondônia. |
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| 3. | | BARRETO, A. L. H.; ELOY, Y. R. G.; MATOS, T. E. de; MARTINS-MIRANDA, A. S.; FREIRE, F. das C. O.; FREIRE FILHO, F. R.; VASCONCELOS, I. M.; FERNANDES, C. F.; OLIVEIRA, J. T. A. Accumulation of Hydrogen Peroxide and Induction of Antioxidative Enzyme Activities Confer Resistance of Cowpea [Vigna unguiculata (L.) Walp.] to the fungus Colletotrichum gloeosporioides. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE BIOQUÍMICA E BIOLOGIA MOLECULAR, 34., 2005, Águas de Lindóia. Programa e índices... Águas de Lindóia: SBBq, 2005. 1 CD-ROM.| Biblioteca(s): Embrapa Meio-Norte. |
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| 4. | | BARRETO, A. L. H.; ELOY, Y. R. G.; MATOS, T. E. de; MARTINS-MIRANDA, A. S.; FREIRE, F. C. O.; FREIRE FILHO, F. R.; VASCONCELOS, I. M.; OLIVEIRA, J. T. A. Host defense responses restricts the growth of the fungus Colletotrichum lindemuthianum in cowpea, TE 97 411-1E resistant genotype. In: CONGRESSO NACIONAL DE FEIJÃO-CAUPI, 1.; REUNIÃO NACIONAL DE FEIJÃO-CAUPI, 6., 2006, Teresina. Tecnologias para o agronegócio: anais. Teresina: Embrapa Meio-Norte, 2006. 1 CD-ROM. (Embrapa Meio-Norte. Documentos, 121).| Biblioteca(s): Embrapa Meio-Norte. |
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| 5. | | BARRETO, A. L. H.; VASCONCELOS, I. M.; GRANGEIRO; T. B.; MELO, V. M. M.; MATOS, T. E.; ELOY, Y. R. G.; FERNANDES, C. de F.; FREIRE-FILHO, F. R.; FREIRE, F. C. O.; OLIVEIRA, J. T. A. Infection process and host defense responses in compatible and incompatible interactions between cowpea (Vigna unguiculata) and Colletotrichum gloeosporioides. International Journal of Plant Science, v. 168, n.2, p. 193-203, 2007. Parceria: Embrapa Meio-Norte; Universidade Federal do Ceará e Embrapa Agroindústria Tropical.| Biblioteca(s): Embrapa Rondônia. |
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| 6. | | BARRETO, A. L. H.; VASCONCELOS, I. M.; GRANGEIRO, T. B.; MELO, V. M. M.; MATOS, T. E.; ELOY, Y. R. G.; FERNANDES, C. F.; TORRES, D. C.; FREIRE FILHO, F. R.; FREIRE, F. C. O.; OLIVEIRA, J. T. A. Infection process and host defense responses in compatible and incompatible interactions between Cowpea (Vigna unguiculata) and Colletotrichum gloeosporioides. International Journal of Plant Sciences, Chicago, v. 168, n. 2, p. 193-203, 2007.| Biblioteca(s): Embrapa Meio-Norte. |
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| 7. | | BARRETO, A. L. H.; ELOY, Y. R. G.; MATOS, T. E. de; MARTINS-MIRANDA, A. S.; FREIRE, F. C. O.; FREIRE FILHO, F. R.; VASCONCELOS, I. M.; OLIVEIRA, J. T. A. Respostas de defesa da planta impedem o crescimento do fungo Colletotrichum gloeosporioides no genótipo de feijão-caupi BR 3 Tracuateua. In: CONGRESSO NACIONAL DE FEIJÃO-CAUPI, 1.; REUNIÃO NACIONAL DE FEIJÃO-CAUPI, 6., 2006, Teresina. Tecnologias para o agronegócio: anais. Teresina: Embrapa Meio-Norte, 2006. 1 CD-ROM. (Embrapa Meio-Norte. Documentos, 121).| Biblioteca(s): Embrapa Meio-Norte. |
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| 8. | | BARRETO, A. L. H.; CAPISTRANO, G. G. G.; ELOY, Y. R. G.; MATOS, T. E.; MARTINS-MIRANDA, A. S.; FERNANDES, C. F.; FREIRE FILHO, F. R.; MELO, V. M. M.; VASCONCELOS, I. V.; OLIVEIRA, J. T. Peroxidase, Superoxide Dismutase, Catalase and Hydrogen Peroxide concentration in Cowpea [Vigna unguiculata (L.) Walp.], genotypes TE97 411-1E and BR3 Tracuatena, infected with Colletotrichum lindemuthianum. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE BIOQUÍMICA E BIOLOGIA MOLECULAR, 33., 2004, Caxambú, MG. Programa e Resumos....Caxambú, MG: SBBq, 2004.| Biblioteca(s): Embrapa Meio-Norte. |
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| Registros recuperados : 8 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio-Norte. Para informações adicionais entre em contato com cpamn.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
22/03/2008 |
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Data da última atualização: |
09/11/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
BARRETO, A. L. H.; VASCONCELOS, I. M.; GRANGEIRO, T. B.; MELO, V. M. M.; MATOS, T. E.; ELOY, Y. R. G.; FERNANDES, C. F.; TORRES, D. C.; FREIRE FILHO, F. R.; FREIRE, F. C. O.; OLIVEIRA, J. T. A. |
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Afiliação: |
ANA LUCIA HORTA BARRETO, CPAMN; ILKA M. VASCONCELOS; FRANCISCO RODRIGUES FREIRE FILHO, CPAMN. |
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Título: |
Infection process and host defense responses in compatible and incompatible interactions between Cowpea (Vigna unguiculata) and Colletotrichum gloeosporioides. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
International Journal of Plant Sciences, Chicago, v. 168, n. 2, p. 193-203, 2007. |
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ISSN: |
1058-5893 |
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Idioma: |
Inglês |
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Conteúdo: |
The infection process of Colletotrichum gloeosporioides was examined by light microscopy on two cowpea genotypes, BR 3 Tracuateua and TE 97-411. In the susceptible genotype BR 3 Tracuateua, the pathogen acted as an intracellular hemibiotroph. Invasion of cowpea primary leaves occurred preferentially through the leaf epidermal cells by penetration tubes that emerged from appressoria. The penetration tube swelled within 48 h to form a spherical infection vesicle inside the epidermal cell in a biotrophic interaction. Subsequently, it became multilobed and multiseptated. By 4 d after inoculation, one or more large primary hyphae emerged from the lateral lobes and grew intracellularly and further colonized several adjacent epidermal host cells, characterizing the necrotrophic phase of infection. Primary leaves of the resistant cowpea genotype, TE 97-411, showed enhanced penetration resistance to C. gloeosporioides associated with higher epidermal H2O2 accumulation beneath appressoria and primary germ tubes, papilla formation, and increased phenylalanine ammonia-lyase activity, possibly related to accumulation of phenolic compounds and host cell wall lignification. Macroscopic examination of the primary leaves revealed the presence of shrunken necrotic lesions characteristic of anthracnose in infected BR 3 Tracuateua, whereas in the genotype TE 97-411, cell death was also observed but only in a reduced percentage of the infection sites. In summary, the results obtained in this study suggested that TE 97-411 is the resistant genotype to C. gloeosporioides compared with BR 3 Tracuateua because it developed more effective defense responses against the establishment of the pathogen. MenosThe infection process of Colletotrichum gloeosporioides was examined by light microscopy on two cowpea genotypes, BR 3 Tracuateua and TE 97-411. In the susceptible genotype BR 3 Tracuateua, the pathogen acted as an intracellular hemibiotroph. Invasion of cowpea primary leaves occurred preferentially through the leaf epidermal cells by penetration tubes that emerged from appressoria. The penetration tube swelled within 48 h to form a spherical infection vesicle inside the epidermal cell in a biotrophic interaction. Subsequently, it became multilobed and multiseptated. By 4 d after inoculation, one or more large primary hyphae emerged from the lateral lobes and grew intracellularly and further colonized several adjacent epidermal host cells, characterizing the necrotrophic phase of infection. Primary leaves of the resistant cowpea genotype, TE 97-411, showed enhanced penetration resistance to C. gloeosporioides associated with higher epidermal H2O2 accumulation beneath appressoria and primary germ tubes, papilla formation, and increased phenylalanine ammonia-lyase activity, possibly related to accumulation of phenolic compounds and host cell wall lignification. Macroscopic examination of the primary leaves revealed the presence of shrunken necrotic lesions characteristic of anthracnose in infected BR 3 Tracuateua, whereas in the genotype TE 97-411, cell death was also observed but only in a reduced percentage of the infection sites. In summary, the results obtained in this stu... Mostrar Tudo |
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Palavras-Chave: |
Cowpea; Defense responses; Infection process. |
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Thesagro: |
Colletotrichum Gloeosporioides. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02659naa a2200301 a 4500
001 1069732
005 2023-11-09
008 2007 bl uuuu u00u1 u #d
022 $a1058-5893
100 1 $aBARRETO, A. L. H.
245 $aInfection process and host defense responses in compatible and incompatible interactions between Cowpea (Vigna unguiculata) and Colletotrichum gloeosporioides.
260 $c2007
520 $aThe infection process of Colletotrichum gloeosporioides was examined by light microscopy on two cowpea genotypes, BR 3 Tracuateua and TE 97-411. In the susceptible genotype BR 3 Tracuateua, the pathogen acted as an intracellular hemibiotroph. Invasion of cowpea primary leaves occurred preferentially through the leaf epidermal cells by penetration tubes that emerged from appressoria. The penetration tube swelled within 48 h to form a spherical infection vesicle inside the epidermal cell in a biotrophic interaction. Subsequently, it became multilobed and multiseptated. By 4 d after inoculation, one or more large primary hyphae emerged from the lateral lobes and grew intracellularly and further colonized several adjacent epidermal host cells, characterizing the necrotrophic phase of infection. Primary leaves of the resistant cowpea genotype, TE 97-411, showed enhanced penetration resistance to C. gloeosporioides associated with higher epidermal H2O2 accumulation beneath appressoria and primary germ tubes, papilla formation, and increased phenylalanine ammonia-lyase activity, possibly related to accumulation of phenolic compounds and host cell wall lignification. Macroscopic examination of the primary leaves revealed the presence of shrunken necrotic lesions characteristic of anthracnose in infected BR 3 Tracuateua, whereas in the genotype TE 97-411, cell death was also observed but only in a reduced percentage of the infection sites. In summary, the results obtained in this study suggested that TE 97-411 is the resistant genotype to C. gloeosporioides compared with BR 3 Tracuateua because it developed more effective defense responses against the establishment of the pathogen.
650 $aColletotrichum Gloeosporioides
653 $aCowpea
653 $aDefense responses
653 $aInfection process
700 1 $aVASCONCELOS, I. M.
700 1 $aGRANGEIRO, T. B.
700 1 $aMELO, V. M. M.
700 1 $aMATOS, T. E.
700 1 $aELOY, Y. R. G.
700 1 $aFERNANDES, C. F.
700 1 $aTORRES, D. C.
700 1 $aFREIRE FILHO, F. R.
700 1 $aFREIRE, F. C. O.
700 1 $aOLIVEIRA, J. T. A.
773 $tInternational Journal of Plant Sciences, Chicago$gv. 168, n. 2, p. 193-203, 2007.
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