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| Registros recuperados : 2 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
04/12/2023 |
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Data da última atualização: |
28/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
LOPES FILHO, W. R. L.; RODRIGUES, F. H. S.; FERREIRA, I. V. L.; CORREA, L. O.; CUNHA, R. L.; PINHEIRO, H. A. |
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Afiliação: |
WAGNER ROMULO LIMA LOPES FILHO, UNIVERSIDADE FEDERAL RURAL DA AMAZÔNIA; FLAVIO HENRIQUE SANTOS RODRIGUES, UNIVERSIDADE FEDERAL RURAL DA AMAZÔNIA; IZABELY VITÓRIA LUCAS FERREIRA, UNIVERSIDADE FEDERAL RURAL DA AMAZÔNIA; LORENA OLIVEIRA CORREA, UNIVERSIDADE FEDERAL RURAL DA AMAZÔNIA; ROBERTO LISBOA CUNHA, CPATU; HUGO ALVES PINHEIRO, UNIVERSIDADE FEDERAL RURAL DA AMAZÔNIA. |
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Título: |
Physiological responses of young oil palm (Elaeis guineensis Jacq.) plants to repetitive water deficit events. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Industrial Crops & Products, v. 172, Article 114052, 2021. |
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DOI: |
https://doi.org/10.1016/j.indcrop.2021.114052 |
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Idioma: |
Inglês |
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Conteúdo: |
Stomatal and non-stomatal limitations to photosynthesis and acclimation of the photosynthetic machinery to repetitive water deficit (WD) events were investigated in oil palms (Elaeis guineensis Jacq.). For this, well-watered plants (control treatment) were compared with plants subjected to one, two, and three WD events imposed by withholding irrigation until their predawn leaf water potential (Tpd) reached around -2.5 MPa. Treatment comparisons were performed over 28 days. The Tpd decreased equally between WD treatments. Decreases in net CO2 assimilation rate (A) were similar between stressed plants until day 7. In the following days, the A was higher in plants thrice stressed than in those stressed once. Stomatal conductance decreased similarly between WD treatments, but mesophyll conductance to CO2 was lower in plants subjected to a single WD. Chloroplast CO2 concentration decreased similarly between plants subjected to one and three WD events until day 14, but it was lower in the former on subsequent days. Plants subjected to a single WD event showed lower Ribulose 1,5 bisphosphate carboxylase/oxygenase (Rubisco) activity, maximum rate of electron transport (Jmax), and higher rates of photorespiration and dark respiration than other treatments. Plants subjected to one WD event also showed lower maximum quantum efficiency of photosystem II (PSII) photochemistry and PSII maximum efficiency concomitantly with higher malondialdehyde content. The results support that repetitive WD events induce the acclimation of the photosynthetic machinery in oil palm through adjustments in carboxylase Rubisco activity, Jmax, photorespiration, and respiration rates, as well as attenuating oxidative damages to PSII and membrane lipids. MenosStomatal and non-stomatal limitations to photosynthesis and acclimation of the photosynthetic machinery to repetitive water deficit (WD) events were investigated in oil palms (Elaeis guineensis Jacq.). For this, well-watered plants (control treatment) were compared with plants subjected to one, two, and three WD events imposed by withholding irrigation until their predawn leaf water potential (Tpd) reached around -2.5 MPa. Treatment comparisons were performed over 28 days. The Tpd decreased equally between WD treatments. Decreases in net CO2 assimilation rate (A) were similar between stressed plants until day 7. In the following days, the A was higher in plants thrice stressed than in those stressed once. Stomatal conductance decreased similarly between WD treatments, but mesophyll conductance to CO2 was lower in plants subjected to a single WD. Chloroplast CO2 concentration decreased similarly between plants subjected to one and three WD events until day 14, but it was lower in the former on subsequent days. Plants subjected to a single WD event showed lower Ribulose 1,5 bisphosphate carboxylase/oxygenase (Rubisco) activity, maximum rate of electron transport (Jmax), and higher rates of photorespiration and dark respiration than other treatments. Plants subjected to one WD event also showed lower maximum quantum efficiency of photosystem II (PSII) photochemistry and PSII maximum efficiency concomitantly with higher malondialdehyde content. The results support that repetitiv... Mostrar Tudo |
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Thesagro: |
Água; Dendê; Elaeis Guineensis. |
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Thesaurus NAL: |
Photorespiration. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02511naa a2200241 a 4500
001 2159136
005 2024-02-28
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.indcrop.2021.114052$2DOI
100 1 $aLOPES FILHO, W. R. L.
245 $aPhysiological responses of young oil palm (Elaeis guineensis Jacq.) plants to repetitive water deficit events.$h[electronic resource]
260 $c2021
520 $aStomatal and non-stomatal limitations to photosynthesis and acclimation of the photosynthetic machinery to repetitive water deficit (WD) events were investigated in oil palms (Elaeis guineensis Jacq.). For this, well-watered plants (control treatment) were compared with plants subjected to one, two, and three WD events imposed by withholding irrigation until their predawn leaf water potential (Tpd) reached around -2.5 MPa. Treatment comparisons were performed over 28 days. The Tpd decreased equally between WD treatments. Decreases in net CO2 assimilation rate (A) were similar between stressed plants until day 7. In the following days, the A was higher in plants thrice stressed than in those stressed once. Stomatal conductance decreased similarly between WD treatments, but mesophyll conductance to CO2 was lower in plants subjected to a single WD. Chloroplast CO2 concentration decreased similarly between plants subjected to one and three WD events until day 14, but it was lower in the former on subsequent days. Plants subjected to a single WD event showed lower Ribulose 1,5 bisphosphate carboxylase/oxygenase (Rubisco) activity, maximum rate of electron transport (Jmax), and higher rates of photorespiration and dark respiration than other treatments. Plants subjected to one WD event also showed lower maximum quantum efficiency of photosystem II (PSII) photochemistry and PSII maximum efficiency concomitantly with higher malondialdehyde content. The results support that repetitive WD events induce the acclimation of the photosynthetic machinery in oil palm through adjustments in carboxylase Rubisco activity, Jmax, photorespiration, and respiration rates, as well as attenuating oxidative damages to PSII and membrane lipids.
650 $aPhotorespiration
650 $aÁgua
650 $aDendê
650 $aElaeis Guineensis
700 1 $aRODRIGUES, F. H. S.
700 1 $aFERREIRA, I. V. L.
700 1 $aCORREA, L. O.
700 1 $aCUNHA, R. L.
700 1 $aPINHEIRO, H. A.
773 $tIndustrial Crops & Products$gv. 172, Article 114052, 2021.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
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Registro completo
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Biblioteca(s): |
Catálogo Coletivo de Periódicos Embrapa; Embrapa Algodão; Embrapa Amapá; Embrapa Amazônia Oriental; Embrapa Arroz e Feijão; Embrapa Cerrados; Embrapa Mandioca e Fruticultura; Embrapa Meio-Norte; Embrapa Pantanal; Embrapa Rondônia; Embrapa Semiárido; Embrapa Soja; Embrapa Trigo; Embrapa Uva e Vinho. MenosCatálogo Coletivo de Periódicos Embrapa; Embrapa Algodão; Embrapa Amapá; Embrapa Amazônia Oriental; Embrapa Arroz e Feijão; Embrapa Cerrados; Embrapa Mandioca e Fruticultura; Embrapa Meio-Norte; Embrapa Pantanal; Embrapa Rondônia... Mostrar Todas |
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Identificador: |
2826 |
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Data corrente: |
09/05/2002 |
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Data da última atualização: |
09/05/2002 |
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Código do título: |
0900592 |
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ISSN: |
0100-6967 |
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Código CCN: |
027582-4 |
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Título e Subtítulo: |
DIVULGACAO AGRONOMICA |
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Entidade: |
Shell Quimica S.A. |
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Local de publicação: |
Sao Paulo-SP |
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Periodicidade: |
irregular |
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Inicio de publicação: |
1959 |
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Coleções da unidade: |
Embrapa Algodão
1961/79 (3,5-9,11,13,14-19,21-46)
Classificação: 632.05
Embrapa Amapá
1966 (22); 1969 (27); 1972 (32); 1973 (33); 1975 (36); 1976 (39-41); 1978 (43-44); 1979 (46)
Embrapa Amazônia Oriental
1959 (1); 1960 (2); 1961 (3-4); 1962 (5-8); 1963 (10); 1964 (11-13); 1965 (14-17); 1966 (18-22); 1967 (23); 1968 (24-26); 1969 (27); 1970 (28-29); 1971 (30-31); 1972 (32); 1973 (33); 1974 (34-35); 1975 (36-37); 1976 (38-41); 1977 (42); 1978 (43-44); 1979 (45-46); 1980 (47)
Classificação: 632.05D518
Embrapa Arroz e Feijão
1960 (1); 1962 (6); 1963 (10); 1964 (12-13,15); 1965 (16-17); 1966 (19,22); 1967 (23); 1968 (24-26); 1969 (27); 1970 (28-29); 1971 (30-31); 1972 (32); 1973 (33); 1974 (34-35); 1975 (36-37); 1976 (38-40); 1977 (42); 1978 (43-44); 1979 (45)
Embrapa Cerrados
1959-60 (1-2); 1961 (4); 1962 (6); 1964 (11); 1965; 1966 (18-22); 1968 (24,26); 1969 (27); 1970-80 (28-47)
Classificação: 632.05
Embrapa Mandioca e Fruticultura
1960(1-2); 1961(3-4); 1962(5-8); 1963(9-10); 1964(11-13); 1965(14-17); 1966(18-22); 1967(23); 1968(24-26); 1969(27); 1970(28-29); 1971(30-31); 1972(32); 1973(33); 1974(34-35); 1975(36-37); 1976(38-41); 1977(42); 1978(43-44); 1979(45-46); 1980(47);
Embrapa Meio-Norte
1961 (4); 1964 (12); 1965 (14-17); 1966 (18-21); 1967 (23); 1968/78 (25-44); 1979 (45)
Classificação: 632.05
Embrapa Pantanal
1971-80 (30,33,38-40,42-47)
Classificação: 23A
Embrapa Rondônia
1967 (23); 1969-71 (27-30); 1973-74 33-35; 1976 (39); 1978 (43-44); 1979-80 (45-47);
Classificação: 632.05
Embrapa Semiárido
1960 (2); 1961 (1,3); 1962 (7-8); 1965 (14-16); 1966 (20); 1967 (23); 1968 (24-26); 1969 (27); 1970 (28-29); 1971 (30-31); 1972 (32); 1973 (33); 1974 (34-35); 1975 (36-37); 1976 (39-41); 1978 (43-44); 1979 (45-46); 1980 (47);
Embrapa Soja
1965 (17); 1966(20); 1970 (28-29); 1971 (30); 1972 (32); 1973 (33); 1974 (34-35); 1975 (36-37); 1976 (38-41); 1977 (42); 1978(43-44); 1979 (46); 1980 (47)
Classificação: 632.05
Embrapa Trigo
1960/80 (1-2) 1960; (3-4) 1961; (5-8) 1962; (9-10) 1963; (11-13) 1964; (15-16) 1965; (18-22) 1966; (23) 1967; (24-26) 1968; (27) 1969; (28-29) 1970; (30-31) 1971; (32) 1972; (33) 1973; (34-35) 1974; (36-37) 1975; (38-41) 1976; (42) 1977; (43-44) 1978; (45-46) 1979; (47) 1980.
Classificação: 632.05
Embrapa Uva e Vinho
1961 (1); 1962 (8); 1963 (10); 1964 (11-13); 1965 (14-17); 1966 (18-22); 1967 (23); 1968 (24-26); 1969 (27); 1970 (28-29); 1971 (30-31); 1972 (32); 1973 (33); 1974 (34); 1975 (35-37); 1976 (38-41); 1977 (42); 1978 (44); 1979 (45-46); 1980 (47)
Classificação: 632.05 |
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