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Registro Completo
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
15/12/2020 |
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Data da última atualização: |
15/12/2020 |
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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: |
AUCIQUE-PEREZ, C. E.; RESENDE, R. S.; MARTINS, A. O.; SILVEIRA, P. R.; CAVALCANTI, J. H. F.; VIEIRA, N. M.; FERNIE, A. R.; ARAÚJO, W. L.; DAMATTA, F. M.; RODRIGUES, F. Á. |
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Título: |
How do wheat plants cope with Pyricularia oryzae infection? A physiological and metabolic approach. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Planta, HEIDELBERG, Germany, v. 252, p. 1-17, 2020. |
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Idioma: |
Inglês |
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Conteúdo: |
Wheat blast, caused by Pyricularia oryzae, has become one of the major threats for food security worldwide. Here, we investigated the behavior of three wheat cultivars (BR-18, Embrapa-16, and BRS-Guamirim), difering in their level of resistance to blast, by analyzing changes in cellular damage, antioxidative metabolism, and defense compounds as well as their photosynthetic performance and metabolite profle. Blast severity was lower by 45 and 33% in Embrapa-16 and BR-18 cultivars (moderately resistant), respectively, at 120 h after inoculation in comparison to BRS-Guamirim cultivar (susceptible). Cellular damage caused by P. oryzae infection was great in BRS-Guamirim compared to BR-18. The photosynthetic performance of infected plants was altered due to difusional and biochemical limitations for CO2 fxation. At the beginning of the infection process, dramatic changes in both carbohydrate metabolism and on the levels of amino acids, intermediate compounds of the tricarboxylic acid cycle, and polyamines were noticed regardless of cultivar suggesting an extensive metabolic reprogramming of the plants following fungal infection. Nevertheless, Embrapa-16 plants displayed a more robust and efcient antioxidant metabolism, higher phenylalanine ammonia-lyase and polyphenoloxidase activities and higher concentrations of phenolics and lignin, which, altogether, helped them to counteract more efciently the infection by P. oryzae. Our results demonstrated that P. oryzae infection signifcantly modifed the metabolism of wheat plants and different types of metabolic defence may act both additively and synergistically to provide additional plant protection to blast. MenosWheat blast, caused by Pyricularia oryzae, has become one of the major threats for food security worldwide. Here, we investigated the behavior of three wheat cultivars (BR-18, Embrapa-16, and BRS-Guamirim), difering in their level of resistance to blast, by analyzing changes in cellular damage, antioxidative metabolism, and defense compounds as well as their photosynthetic performance and metabolite profle. Blast severity was lower by 45 and 33% in Embrapa-16 and BR-18 cultivars (moderately resistant), respectively, at 120 h after inoculation in comparison to BRS-Guamirim cultivar (susceptible). Cellular damage caused by P. oryzae infection was great in BRS-Guamirim compared to BR-18. The photosynthetic performance of infected plants was altered due to difusional and biochemical limitations for CO2 fxation. At the beginning of the infection process, dramatic changes in both carbohydrate metabolism and on the levels of amino acids, intermediate compounds of the tricarboxylic acid cycle, and polyamines were noticed regardless of cultivar suggesting an extensive metabolic reprogramming of the plants following fungal infection. Nevertheless, Embrapa-16 plants displayed a more robust and efcient antioxidant metabolism, higher phenylalanine ammonia-lyase and polyphenoloxidase activities and higher concentrations of phenolics and lignin, which, altogether, helped them to counteract more efciently the infection by P. oryzae. Our results demonstrated that P. oryzae infection signifca... Mostrar Tudo |
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Palavras-Chave: |
Carbon metabolism; Fungal disease; Metabolic profling; Photosynthesis; Reactive oxygen species. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02538naa a2200289 a 4500
001 1130469
005 2020-12-15
008 2020 bl uuuu u00u1 u #d
100 1 $aAUCIQUE-PEREZ, C. E.
245 $aHow do wheat plants cope with Pyricularia oryzae infection? A physiological and metabolic approach.$h[electronic resource]
260 $c2020
520 $aWheat blast, caused by Pyricularia oryzae, has become one of the major threats for food security worldwide. Here, we investigated the behavior of three wheat cultivars (BR-18, Embrapa-16, and BRS-Guamirim), difering in their level of resistance to blast, by analyzing changes in cellular damage, antioxidative metabolism, and defense compounds as well as their photosynthetic performance and metabolite profle. Blast severity was lower by 45 and 33% in Embrapa-16 and BR-18 cultivars (moderately resistant), respectively, at 120 h after inoculation in comparison to BRS-Guamirim cultivar (susceptible). Cellular damage caused by P. oryzae infection was great in BRS-Guamirim compared to BR-18. The photosynthetic performance of infected plants was altered due to difusional and biochemical limitations for CO2 fxation. At the beginning of the infection process, dramatic changes in both carbohydrate metabolism and on the levels of amino acids, intermediate compounds of the tricarboxylic acid cycle, and polyamines were noticed regardless of cultivar suggesting an extensive metabolic reprogramming of the plants following fungal infection. Nevertheless, Embrapa-16 plants displayed a more robust and efcient antioxidant metabolism, higher phenylalanine ammonia-lyase and polyphenoloxidase activities and higher concentrations of phenolics and lignin, which, altogether, helped them to counteract more efciently the infection by P. oryzae. Our results demonstrated that P. oryzae infection signifcantly modifed the metabolism of wheat plants and different types of metabolic defence may act both additively and synergistically to provide additional plant protection to blast.
653 $aCarbon metabolism
653 $aFungal disease
653 $aMetabolic profling
653 $aPhotosynthesis
653 $aReactive oxygen species
700 1 $aRESENDE, R. S.
700 1 $aMARTINS, A. O.
700 1 $aSILVEIRA, P. R.
700 1 $aCAVALCANTI, J. H. F.
700 1 $aVIEIRA, N. M.
700 1 $aFERNIE, A. R.
700 1 $aARAÚJO, W. L.
700 1 $aDAMATTA, F. M.
700 1 $aRODRIGUES, F. Á.
773 $tPlanta, HEIDELBERG, Germany$gv. 252, p. 1-17, 2020.
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