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| Registros recuperados : 46 | |
| Registros recuperados : 46 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
20/09/2017 |
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Data da última atualização: |
20/09/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
OLIVEIRA, T. M.; YAHMED, J. B.; DUTRA, J.; MASERTI, B. E.; TALON, M.; NAVARRO, L.; OLLITRAUT, P.; GESTEIRA, A. da S.; MORILLON, R. |
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Afiliação: |
TAHISE M. OLIVEIRA, UESC; JIHÈNE BEN YAHMED, SEAPAG; JOADSON DUTRA, UESC; BIANCA E. MASERTI, Istituto per la Protezione Sostenibile delle Piante; MANUEL TALON, Instituto Valenciano de Investigaciones Agraria; LUIS NAVARRO, nstituto Valenciano de Investigaciones Agrarias; PATRICK OLLITRAUT, SEAPAG; ABELMON DA SILVA GESTEIRA, CNPMF; RAPHAËL MORILLON, SEAPAG. |
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Título: |
Better tolerance to water deficit in doubled diploid 'Carrizo citrange' compared to diploid seedlings is associated with more limited water consumption. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Acta Physiologiae Plantarum, 2017. |
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ISSN: |
0137-5881 |
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Idioma: |
Inglês |
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Conteúdo: |
olerance to water deficit in diploid (2x) and doubled diploid (4x) ?Carrizo citrange? (Citrus sinensis [L.] Osbeck × Poncirus trifoliata [L.] Raf) was investigated. Water deficit was applied for 4 weeks. Physiological parameters, including stomatal conductance (gs), photosynthesis (A), transpiration (E), leaf and soil water potentials (?leaf; ?soil), and pot water loss, were monitored throughout the stress. Moreover, ABA, H2O2 contents, and the expression of genes involved in ABA biosynthesis (NCED3), regulation of abscisic acid signaling (ABI1), and coding for a catalase enzyme (CAT2) known to favor H2O2 scavenging were monitored. During the experiment gs, A, and E values were most of the time higher in 2x compared to 4x. During the water deficit period, pot water loss decreased faster in 2x compared to 4x, leading to a faster decrease in all physiological parameters in 2x. The higher sensitivity of 2x compared to 4x was correlated with more numerous thinner roots, higher leaf ABA and H2O2 contents, and with the lower leaf water potential. ABI1 and NCED3 expression was not strictly correlated with the ABA content. However, the higher CAT2 expression in 4x was correlated with the lower leaf H2O2 contents. Therefore, the better tolerance observed in 4x ?Carrizo citrange? compared to 2x was associated with more limited water consumption and better and H2O2 scavenging. |
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Thesagro: |
Fruta cítrica. |
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Thesaurus NAL: |
Citrus. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02139naa a2200253 a 4500
001 2075999
005 2017-09-20
008 2017 bl uuuu u00u1 u #d
022 $a0137-5881
100 1 $aOLIVEIRA, T. M.
245 $aBetter tolerance to water deficit in doubled diploid 'Carrizo citrange' compared to diploid seedlings is associated with more limited water consumption.$h[electronic resource]
260 $c2017
520 $aolerance to water deficit in diploid (2x) and doubled diploid (4x) ?Carrizo citrange? (Citrus sinensis [L.] Osbeck × Poncirus trifoliata [L.] Raf) was investigated. Water deficit was applied for 4 weeks. Physiological parameters, including stomatal conductance (gs), photosynthesis (A), transpiration (E), leaf and soil water potentials (?leaf; ?soil), and pot water loss, were monitored throughout the stress. Moreover, ABA, H2O2 contents, and the expression of genes involved in ABA biosynthesis (NCED3), regulation of abscisic acid signaling (ABI1), and coding for a catalase enzyme (CAT2) known to favor H2O2 scavenging were monitored. During the experiment gs, A, and E values were most of the time higher in 2x compared to 4x. During the water deficit period, pot water loss decreased faster in 2x compared to 4x, leading to a faster decrease in all physiological parameters in 2x. The higher sensitivity of 2x compared to 4x was correlated with more numerous thinner roots, higher leaf ABA and H2O2 contents, and with the lower leaf water potential. ABI1 and NCED3 expression was not strictly correlated with the ABA content. However, the higher CAT2 expression in 4x was correlated with the lower leaf H2O2 contents. Therefore, the better tolerance observed in 4x ?Carrizo citrange? compared to 2x was associated with more limited water consumption and better and H2O2 scavenging.
650 $aCitrus
650 $aFruta cítrica
700 1 $aYAHMED, J. B.
700 1 $aDUTRA, J.
700 1 $aMASERTI, B. E.
700 1 $aTALON, M.
700 1 $aNAVARRO, L.
700 1 $aOLLITRAUT, P.
700 1 $aGESTEIRA, A. da S.
700 1 $aMORILLON, R.
773 $tActa Physiologiae Plantarum, 2017.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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