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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
09/11/2020 |
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Data da última atualização: |
10/11/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SPERANDIO, E. M.; ALVES, T. M.; VALE, H. M. M. do; GONÇALVES, L. de A.; SILVA, E. C. e; FILIPPI, M. C. C. de. |
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Afiliação: |
EUGENIO M. SPERANDIO, INSTITUTO FEDERAL GOIANO, Rio Verde-GO; TAVVS MICAEL ALVES, INSTITUTO FEDERAL GOIANO, Rio Verde-GO; HELSON MARIO MARTINS DO VALE, UNB; LETICIA DE ALMEIDA GONCALVES, UFG; ELIENAI CANDIA E SILVA, UFV; MARTA CRISTINA CORSI DE FILIPPI, CNPAF. |
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Título: |
Signaling defense responses of upland rice to avirulent and virulent strains of Magnaporthe oryzae. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Journal of Plant Physiology, v. 253, 153271, 2020. |
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ISSN: |
0176-1617 |
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DOI: |
https://doi.org/10.1016/j.jplph.2020.153271 |
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Idioma: |
Inglês |
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Conteúdo: |
Rice blast (Magnaporthe oryzae) can cause large losses in crop yields, especially in upland rice systems. Avirulent strains of M. oryzae can induce resistance to subsequent attacks by virulent strains in plants. This study aimed to investigate the defense responses in upland rice challenged with a virulent strain of M. oryzae after acclimation with an avirulent strain. The avirulent strain decreased rice blast severity in the challenged plants. Induced resistance was characterized by a hypersensitive response and early accumulation of phenolic compounds. Scanning electron microscopy showed that M. oryzae conidia germinate and form appressoria, but do not colonize leaf tissues. The activities of pathogenesis-related proteins, total phenolic compounds, and salicylic acid (SA) were affected by acclimation to the avirulent strain. The activities of β-1,3-glucanase, phenylalanine ammonia-lyase, and peroxidase, as well as the SA levels explained most of the variability in the rice plant responses to M. oryzae. In addition, OsXa13, OsMAPKKK74, OsAOS2, OsACO7, and OsMAS1 expression was modulated depending on the virulence of the M. oryzae strains. This modulation in gene expression is critical for infection and some of these mechanisms are targeted by effectors, resulting in enhanced susceptibility and pathogen infection. These results have practical importance in plant-pathogen interaction studies to identify resistance-relevant mechanisms against M. oryzae in upland rice. |
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Thesagro: |
Arroz; Brusone; Oryza Sativa. |
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Thesaurus Nal: |
Ethylene; Jasmonic acid; Phenylpropanoids; Rice; Signal transduction; Systemic acquired resistance. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 02418naa a2200313 a 4500
001 2126385
005 2020-11-10
008 2020 bl uuuu u00u1 u #d
022 $a0176-1617
024 7 $ahttps://doi.org/10.1016/j.jplph.2020.153271$2DOI
100 1 $aSPERANDIO, E. M.
245 $aSignaling defense responses of upland rice to avirulent and virulent strains of Magnaporthe oryzae.$h[electronic resource]
260 $c2020
520 $aRice blast (Magnaporthe oryzae) can cause large losses in crop yields, especially in upland rice systems. Avirulent strains of M. oryzae can induce resistance to subsequent attacks by virulent strains in plants. This study aimed to investigate the defense responses in upland rice challenged with a virulent strain of M. oryzae after acclimation with an avirulent strain. The avirulent strain decreased rice blast severity in the challenged plants. Induced resistance was characterized by a hypersensitive response and early accumulation of phenolic compounds. Scanning electron microscopy showed that M. oryzae conidia germinate and form appressoria, but do not colonize leaf tissues. The activities of pathogenesis-related proteins, total phenolic compounds, and salicylic acid (SA) were affected by acclimation to the avirulent strain. The activities of β-1,3-glucanase, phenylalanine ammonia-lyase, and peroxidase, as well as the SA levels explained most of the variability in the rice plant responses to M. oryzae. In addition, OsXa13, OsMAPKKK74, OsAOS2, OsACO7, and OsMAS1 expression was modulated depending on the virulence of the M. oryzae strains. This modulation in gene expression is critical for infection and some of these mechanisms are targeted by effectors, resulting in enhanced susceptibility and pathogen infection. These results have practical importance in plant-pathogen interaction studies to identify resistance-relevant mechanisms against M. oryzae in upland rice.
650 $aEthylene
650 $aJasmonic acid
650 $aPhenylpropanoids
650 $aRice
650 $aSignal transduction
650 $aSystemic acquired resistance
650 $aArroz
650 $aBrusone
650 $aOryza Sativa
700 1 $aALVES, T. M.
700 1 $aVALE, H. M. M. do
700 1 $aGONÇALVES, L. de A.
700 1 $aSILVA, E. C. e
700 1 $aFILIPPI, M. C. C. de
773 $tJournal of Plant Physiology$gv. 253, 153271, 2020.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
23/03/2004 |
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Data da última atualização: |
21/02/2018 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
REIS, L. R. S.; LAMEIRA, O. A.; LOPES, S. da C.; OLIVEIRA, E. P.; MENEZES, I. C.; CORDEIRO, I. M. C. C. |
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Afiliação: |
LANA ROBERTA SOUSA REIS, BOLSISTA PIBIC; OSMAR ALVES LAMEIRA, CPATU; SEBASTIÃO DA CUNHA LOPES, BOLSISTA CNPQ; ELAINE PACHECO OLIVEIRA, PÓS-GRADUANDA UFLA; ILMARINA CAMPOS DE MENEZES, CPATU; IRACEMA MARIA CASTRO COIMBRA CORDEIRO, MESTRANDA FCAP. |
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Título: |
Análise fitoquímica de três espécies vegetais existentes no horto de plantas medicinais da Embrapa Amazônia Oriental. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
In: CONGRESSO NACIONAL DE BOTÂNICA, 53.; REUNIÃO NORDESTINA DE BOTÂNICA, 25., 2002, Recife. Resumos. Recife: SBB, 2002. |
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Páginas: |
p. 16. |
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Idioma: |
Português |
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Palavras-Chave: |
Amazônia Oriental; Análise fitoquímica; Brasil; Princípio ativo. |
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Thesagro: |
Farmacologia; Planta Medicinal. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/172908/1/doc026.pdf
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Marc: |
LEADER 00808nam a2200241 a 4500
001 1405400
005 2018-02-21
008 2002 bl uuuu u00u1 u #d
100 1 $aREIS, L. R. S.
245 $aAnálise fitoquímica de três espécies vegetais existentes no horto de plantas medicinais da Embrapa Amazônia Oriental.
260 $aIn: CONGRESSO NACIONAL DE BOTÂNICA, 53.; REUNIÃO NORDESTINA DE BOTÂNICA, 25., 2002, Recife. Resumos. Recife: SBB$c2002
300 $ap. 16.
650 $aFarmacologia
650 $aPlanta Medicinal
653 $aAmazônia Oriental
653 $aAnálise fitoquímica
653 $aBrasil
653 $aPrincípio ativo
700 1 $aLAMEIRA, O. A.
700 1 $aLOPES, S. da C.
700 1 $aOLIVEIRA, E. P.
700 1 $aMENEZES, I. C.
700 1 $aCORDEIRO, I. M. C. C.
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Embrapa Amazônia Oriental (CPATU) |
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