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 | Acesso ao texto completo restrito à biblioteca da Embrapa Café. Para informações adicionais entre em contato com biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Café; Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
13/10/2015 |
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Data da última atualização: |
26/04/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LIMA, E. A.; FURLANETTO, C.; NICOLE, M.; GOMES, A. C. M. M.; ALMEIDA, M. R. A.; JORGE-JÚNIOR, A.; CORREA, V. R.; SALGADO, S. M.; FERRAO, M. A. G.; CARNEIRO, R. M. D. G. |
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Afiliação: |
EDRIANA A. LIMA, UNB; CLEBER FURLANETTO, UNB; MICHEL NICOLE, IRD; ANA CRISTINA MENESES M GOMES, CENARGEN; MARIA R. A. ALMEIDA; ALDEMIRO JORGE-JÚNIOR; VALDIR R. CORREA; SÔNIA MARIA SALGADO, EPAMIG; MARIA AMELIA GAVA FERRAO, SAPC; REGINA MARIA DECHECHI G CARNEIRO, CENARGEN. |
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Título: |
The multi-resistant reaction of drought-tolerant coffee 'Conilon Clone 14' to Meloidogyne spp. and late hypersensitive-like response in Coffea canephora. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Phytopathology, v. 105, n. 6, p.805-14, 2015. |
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Idioma: |
Inglês |
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Conteúdo: |
Root-knot nematodes (RKN), Meloidogyne spp., have major economic impact on coffee production in Central and South America. Genetic control of RKN constitutes an essential part for integrated pest management strategy. The objective of this study was to evaluate the resistance of Coffea canephora genotypes (clones) to Meloidogyne spp. Sensitive and drought-tolerant coffee genotypes were used to infer their resistance using nematode reproduction factor and histopathology. Eight clonal genotypes were highly resistant to M. paranaensis. ?Clone 14? (drought-tolerant) and ?ESN2010-04? were the only genotypes highly resistant and moderately resistant, respectively, to both M. incognita races 3 and 1. Several clones were highly resistant to both avirulent and virulent M. exigua. Clone 14 and ESN2010-04 showed multiple resistance to major RKNs tested. Roots of ?clone 14? (resistant) and ?clone 22? (susceptible) were histologically studied against infection by M. incognita race 3 and M. paranaensis. Reduction of juvenile (J2) penetration in clone 14 was first seen at 2 to 6 days after inoculation (DAI). Apparent early hypersensitive reaction (HR) was seen in root cortex between 4 and 6 DAI, which led to cell death and prevention of some nematode development. At 12 to 20 DAI, giant cells formed in the vascular cylinder, besides normal development into J3/J4. From 32 to 45 DAI, giant cells were completely degenerated. Late, intense HR and cell death were frequently observed around young females and giant cells reported for the first time in coffee pathosystem. These results provide rational bases for future studies, including prospection, characterization, and expression profiling of genomic loci involved in both drought tolerance and resistance to multiple RKN species. MenosRoot-knot nematodes (RKN), Meloidogyne spp., have major economic impact on coffee production in Central and South America. Genetic control of RKN constitutes an essential part for integrated pest management strategy. The objective of this study was to evaluate the resistance of Coffea canephora genotypes (clones) to Meloidogyne spp. Sensitive and drought-tolerant coffee genotypes were used to infer their resistance using nematode reproduction factor and histopathology. Eight clonal genotypes were highly resistant to M. paranaensis. ?Clone 14? (drought-tolerant) and ?ESN2010-04? were the only genotypes highly resistant and moderately resistant, respectively, to both M. incognita races 3 and 1. Several clones were highly resistant to both avirulent and virulent M. exigua. Clone 14 and ESN2010-04 showed multiple resistance to major RKNs tested. Roots of ?clone 14? (resistant) and ?clone 22? (susceptible) were histologically studied against infection by M. incognita race 3 and M. paranaensis. Reduction of juvenile (J2) penetration in clone 14 was first seen at 2 to 6 days after inoculation (DAI). Apparent early hypersensitive reaction (HR) was seen in root cortex between 4 and 6 DAI, which led to cell death and prevention of some nematode development. At 12 to 20 DAI, giant cells formed in the vascular cylinder, besides normal development into J3/J4. From 32 to 45 DAI, giant cells were completely degenerated. Late, intense HR and cell death were frequently observed around young ... Mostrar Tudo |
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Palavras-Chave: |
Coffee; Root-knot nematodes (RKN). |
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Thesagro: |
Coffea Canephora. |
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Thesaurus Nal: |
Meloidogyne. |
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Categoria do assunto: |
-- |
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Marc: |
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Registro original: |
Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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| 1. |  | FAVRON, P. O.; BORGHESI, J.; AGOPIAN, R. G.; MIGLINO, M. A.; BORELLI, V. Variação nos tipos de irrigação do nodo sinoatrial em cães de diferentes raças. Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 37, n. 11, p. 1352-1356, novembro. 2017. Título em inglês: Variation in irrigation of the sinoatrial node in dogs of different breeds.| Biblioteca(s): Embrapa Unidades Centrais. |
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