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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: |
18/02/2016 |
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Data da última atualização: |
18/02/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
DOMICIANO, G. P.; CACIQUE, I. S.; FREITAS, C. C.; FILIPPI, M. C. C.; DAMATTA, F. M.; VALE, F. X. R. do; RODRIGUES, F. A. |
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Afiliação: |
GISELE PEREIRA DOMICIANO, UFV; ISAIAS SEVERINO CACIQUE, UFV; CECILIA CHAGAS FREITAS, UFV; MARTA CRISTINA CORSI DE FILIPPI, CNPAF; FABIO MURILO DAMATTA, UFV; FRANCISCO XAVIER RIBEIRO DO VALE, UFV; FABRÍCIO ÁVILA RODRIGUES, UFV. |
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Título: |
Alterations in gas exchange and oxidative metabolism in rice leaves infected by Pyricularia oryzae are attenuated by silicon. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Phytopathology, v. 105, n. 6, p. 738-747, June 2015. |
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DOI: |
10.1094/PHYTO-10-14-0280-R |
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Idioma: |
Inglês |
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Conteúdo: |
Rice blast, caused by Pyricularia oryzae, is the most important disease in rice worldwide. This study investigated the effects of silicon (Si) on the photosynthetic gas exchange parameters (net CO2 assimilation rate [A], stomatal conductance to water vapor [gs], internal-to-ambient CO2 concentration ratio [Ci/Ca], and transpiration rate [E]); chlorophyll fluorescence a (Chla) parameters (maximum photochemical efficiency of photosystem II [Fv/Fm], photochemical [qP] and nonphotochemical [NPQ] quenching coefficients, and electron transport rate [ETR]); concentrations of pigments, malondialdehyde (MDA), and hydrogen peroxide (H2O2); and activities of superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), glutathione reductase (GR), and lypoxigenase (LOX) in rice leaves. Rice plants were grown in a nutrient solution containing 0 or 2 mM Si (-Si or +Si, respectively) with and without P. oryzae inoculation. Blast severity decreased with higher foliar Si concentration. The values of A, gs and E were generally higher for the +Si plants in comparison with the -Si plants upon P. oryzae infection. The Fv/Fm, qp, NPQ, and ETR were greater for the +Si plants relative to the -Si plants at 108 and 132 h after inoculation (hai). The values for qp and ETR were significantly higher for the -Si plants in comparison with the +Si plants at 36 hai, and the NPQ was significantly higher for the -Si plants in comparison with the +Si plants at 0 and 36 hai. The concentrations of Chla, Chlb, Chla+b, and carotenoids were significantly greater in the +Si plants relative to the -Si plants. For the -Si plants, the MDA and H2O2 concentrations were significantly higher than those in the +Si plants. The LOX activity was significantly higher in the +Si plants than in the -Si plants. The SOD and GR activities were significantly higher for the -Si plants than in the +Si plants. The CAT and APX activities were significantly higher in the +Si plants than in the -Si plants. The supply of Si contributed to a decrease in blast severity, improved the gas exchange performance, and caused less dysfunction at the photochemical level. MenosRice blast, caused by Pyricularia oryzae, is the most important disease in rice worldwide. This study investigated the effects of silicon (Si) on the photosynthetic gas exchange parameters (net CO2 assimilation rate [A], stomatal conductance to water vapor [gs], internal-to-ambient CO2 concentration ratio [Ci/Ca], and transpiration rate [E]); chlorophyll fluorescence a (Chla) parameters (maximum photochemical efficiency of photosystem II [Fv/Fm], photochemical [qP] and nonphotochemical [NPQ] quenching coefficients, and electron transport rate [ETR]); concentrations of pigments, malondialdehyde (MDA), and hydrogen peroxide (H2O2); and activities of superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), glutathione reductase (GR), and lypoxigenase (LOX) in rice leaves. Rice plants were grown in a nutrient solution containing 0 or 2 mM Si (-Si or +Si, respectively) with and without P. oryzae inoculation. Blast severity decreased with higher foliar Si concentration. The values of A, gs and E were generally higher for the +Si plants in comparison with the -Si plants upon P. oryzae infection. The Fv/Fm, qp, NPQ, and ETR were greater for the +Si plants relative to the -Si plants at 108 and 132 h after inoculation (hai). The values for qp and ETR were significantly higher for the -Si plants in comparison with the +Si plants at 36 hai, and the NPQ was significantly higher for the -Si plants in comparison with the +Si plants at 0 and 36 hai. The concentrations of Chla... Mostrar Tudo |
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Palavras-Chave: |
Fungal infection. |
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Thesagro: |
Arroz; Brusone; Doença de planta; Fotossíntese; Oryza sativa; Pyricularia oryzae. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 03018naa a2200289 a 4500
001 2037587
005 2016-02-18
008 2015 bl uuuu u00u1 u #d
024 7 $a10.1094/PHYTO-10-14-0280-R$2DOI
100 1 $aDOMICIANO, G. P.
245 $aAlterations in gas exchange and oxidative metabolism in rice leaves infected by Pyricularia oryzae are attenuated by silicon.$h[electronic resource]
260 $c2015
520 $aRice blast, caused by Pyricularia oryzae, is the most important disease in rice worldwide. This study investigated the effects of silicon (Si) on the photosynthetic gas exchange parameters (net CO2 assimilation rate [A], stomatal conductance to water vapor [gs], internal-to-ambient CO2 concentration ratio [Ci/Ca], and transpiration rate [E]); chlorophyll fluorescence a (Chla) parameters (maximum photochemical efficiency of photosystem II [Fv/Fm], photochemical [qP] and nonphotochemical [NPQ] quenching coefficients, and electron transport rate [ETR]); concentrations of pigments, malondialdehyde (MDA), and hydrogen peroxide (H2O2); and activities of superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), glutathione reductase (GR), and lypoxigenase (LOX) in rice leaves. Rice plants were grown in a nutrient solution containing 0 or 2 mM Si (-Si or +Si, respectively) with and without P. oryzae inoculation. Blast severity decreased with higher foliar Si concentration. The values of A, gs and E were generally higher for the +Si plants in comparison with the -Si plants upon P. oryzae infection. The Fv/Fm, qp, NPQ, and ETR were greater for the +Si plants relative to the -Si plants at 108 and 132 h after inoculation (hai). The values for qp and ETR were significantly higher for the -Si plants in comparison with the +Si plants at 36 hai, and the NPQ was significantly higher for the -Si plants in comparison with the +Si plants at 0 and 36 hai. The concentrations of Chla, Chlb, Chla+b, and carotenoids were significantly greater in the +Si plants relative to the -Si plants. For the -Si plants, the MDA and H2O2 concentrations were significantly higher than those in the +Si plants. The LOX activity was significantly higher in the +Si plants than in the -Si plants. The SOD and GR activities were significantly higher for the -Si plants than in the +Si plants. The CAT and APX activities were significantly higher in the +Si plants than in the -Si plants. The supply of Si contributed to a decrease in blast severity, improved the gas exchange performance, and caused less dysfunction at the photochemical level.
650 $aArroz
650 $aBrusone
650 $aDoença de planta
650 $aFotossíntese
650 $aOryza sativa
650 $aPyricularia oryzae
653 $aFungal infection
700 1 $aCACIQUE, I. S.
700 1 $aFREITAS, C. C.
700 1 $aFILIPPI, M. C. C.
700 1 $aDAMATTA, F. M.
700 1 $aVALE, F. X. R. do
700 1 $aRODRIGUES, F. A.
773 $tPhytopathology$gv. 105, n. 6, p. 738-747, June 2015.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
13/12/2022 |
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Data da última atualização: |
13/12/2022 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
REIS, M. A.; NORIEGA, D. D.; ALVES, G. dos S.; COELHO, R. R.; SA, M. F. G. de; ANTONINO, J. D. |
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Afiliação: |
MANOELY ABREU REIS, Universidade Federal Rural de Pernambuco; DANIEL DAVID NORIEGA, Universidade Federal Rural de Pernambuco; GESSICA DOS SANTOS ALVES, Universidade Federal Rural de Pernambuco; ROBERTA RAMOS COELHO, Universidade Federal Rural de Pernambuco; MARIA FATIMA GROSSI DE SA, Cenargen; JOSÉ DIJAIR ANTONINO, Universidade Federal Rural de Pernambuco. |
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Título: |
Por que o RNAi induzido por ingestão é ineficiente em Diatraea saccharalis? Um possível papel para DsacREase e outras nucleases. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 28., 2022, Fortaleza. Anais... Fortaleza: SEB, 2022. |
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Páginas: |
p. 860 |
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Idioma: |
Inglês |
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Notas: |
Na publicação: Maria Fatima Grossi-de-sa. |
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Palavras-Chave: |
Broca da cana-de-açúcar; Eficiência de RNAi; Estabilidade de dsRNA. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1149597/1/anais-final-860.pdf
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Marc: |
LEADER 00787nam a2200217 a 4500
001 2149597
005 2022-12-13
008 2022 bl uuuu u00u1 u #d
100 1 $aREIS, M. A.
245 $aPor que o RNAi induzido por ingestão é ineficiente em Diatraea saccharalis? Um possível papel para DsacREase e outras nucleases.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 28., 2022, Fortaleza. Anais... Fortaleza: SEB$c2022
300 $ap. 860
500 $aNa publicação: Maria Fatima Grossi-de-sa.
653 $aBroca da cana-de-açúcar
653 $aEficiência de RNAi
653 $aEstabilidade de dsRNA
700 1 $aNORIEGA, D. D.
700 1 $aALVES, G. dos S.
700 1 $aCOELHO, R. R.
700 1 $aSA, M. F. G. de
700 1 $aANTONINO, J. D.
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Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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