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 | Acesso ao texto completo restrito à biblioteca da Biblioteca Rui Tendinha. Para informações adicionais entre em contato com biblioteca@incaper.es.gov.br. |
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Registro Completo |
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Biblioteca(s): |
Biblioteca Rui Tendinha. |
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Data corrente: |
13/01/2015 |
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Data da última atualização: |
13/01/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PRAXEDES, S. C.; DAMATTA, F. M.; LOUREIRO, M. E.; FERRÃO, M. A. G.; CORDEIRO, A. T. |
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Afiliação: |
Sidney C. Praxedes; Fábio M. DaMatta; Marcelo E. Loureiro; Maria Amélia Gava Ferrão, Incaper/Embrapa Café; Antônio T. Cordeiro. |
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Título: |
Effects of long-term soil drought on photosynthesis and carbohydrate metabolism in mature robusta coffee (Coffea canephora Pierre var. kouillou) leaves. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Environmental and Experimental Botany, v. 56, n. 3, p. 263-273, 2006, |
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Idioma: |
Inglês |
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Conteúdo: |
Four clones of robusta coffee representing drought-tolerant (14 and 120) and drought-sensitive (46 and 109A) genotypes were submitted to a slowly imposed water deficit. Sampling and measurements were performed when predawn leaf water potential (Ψpd) approximately −2.0 and −3.0 MPa was reached. Regardless of the clone evaluated, drought led to sharper decreases in stomatal conductance than in photosynthesis, which was accompanied by significant declines in internal to ambient CO2 concentration ratio. Little or no effect of drought on chlorophyll a fluorescence parameters was observed. Regardless of the stress intensity, starch decreased remarkably. This was not accompanied by significant changes in concentration of soluble sugars, with the exception of clone 120 in which a rise in sucrose and hexose concentrations was found when Ψpd reached −3.0 MPa. At Ψpd = −2.0 MPa, activity of acid invertase increased only in clone 120; at Ψpd = −3.0 MPa, it increased in clones 14, 46 and 120, while activity of sucrose synthase declined, but only in clone 109A. Drought-induced decrease in ADP-glucose pyrophosphorylase activity was found only in clones 14 and 46, irrespective of stress intensity. At Ψpd = −3.0 MPa, maximal extractable and activation state of sucrose-phosphate synthase (SPS) decreased in all clones with the exception of clone 120, in which SPS activity was maintained in parallel to a rising activity of fructose-1,6-bisphosphatase. Changes in SPS activity could neither be explained by the CO2 decrease linked to stomatal closure nor by differences in leaf water status. MenosFour clones of robusta coffee representing drought-tolerant (14 and 120) and drought-sensitive (46 and 109A) genotypes were submitted to a slowly imposed water deficit. Sampling and measurements were performed when predawn leaf water potential (Ψpd) approximately −2.0 and −3.0 MPa was reached. Regardless of the clone evaluated, drought led to sharper decreases in stomatal conductance than in photosynthesis, which was accompanied by significant declines in internal to ambient CO2 concentration ratio. Little or no effect of drought on chlorophyll a fluorescence parameters was observed. Regardless of the stress intensity, starch decreased remarkably. This was not accompanied by significant changes in concentration of soluble sugars, with the exception of clone 120 in which a rise in sucrose and hexose concentrations was found when Ψpd reached −3.0 MPa. At Ψpd = −2.0 MPa, activity of acid invertase increased only in clone 120; at Ψpd = −3.0 MPa, it increased in clones 14, 46 and 120, while activity of sucrose synthase declined, but only in clone 109A. Drought-induced decrease in ADP-glucose pyrophosphorylase activity was found only in clones 14 and 46, irrespective of stress intensity. At Ψpd = −3.0 MPa, maximal extractable and activation state of sucrose-phosphate synthase (SPS) decreased in all clones with the exception of clone 120, in which SPS activity was maintained in parallel to a rising activity of fructose-1,... Mostrar Tudo |
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Thesaurus NAL: |
Carbon metabolism; Chlorophyll fluorescence; Coffee; Gas exchange; Sucrose-phosphate synthase; Water deficit. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02453naa a2200241 a 4500
001 1004903
005 2015-01-13
008 2006 bl uuuu u00u1 u #d
100 1 $aPRAXEDES, S. C.
245 $aEffects of long-term soil drought on photosynthesis and carbohydrate metabolism in mature robusta coffee (Coffea canephora Pierre var. kouillou) leaves.$h[electronic resource]
260 $c2006
520 $aFour clones of robusta coffee representing drought-tolerant (14 and 120) and drought-sensitive (46 and 109A) genotypes were submitted to a slowly imposed water deficit. Sampling and measurements were performed when predawn leaf water potential (Ψpd) approximately −2.0 and −3.0 MPa was reached. Regardless of the clone evaluated, drought led to sharper decreases in stomatal conductance than in photosynthesis, which was accompanied by significant declines in internal to ambient CO2 concentration ratio. Little or no effect of drought on chlorophyll a fluorescence parameters was observed. Regardless of the stress intensity, starch decreased remarkably. This was not accompanied by significant changes in concentration of soluble sugars, with the exception of clone 120 in which a rise in sucrose and hexose concentrations was found when Ψpd reached −3.0 MPa. At Ψpd = −2.0 MPa, activity of acid invertase increased only in clone 120; at Ψpd = −3.0 MPa, it increased in clones 14, 46 and 120, while activity of sucrose synthase declined, but only in clone 109A. Drought-induced decrease in ADP-glucose pyrophosphorylase activity was found only in clones 14 and 46, irrespective of stress intensity. At Ψpd = −3.0 MPa, maximal extractable and activation state of sucrose-phosphate synthase (SPS) decreased in all clones with the exception of clone 120, in which SPS activity was maintained in parallel to a rising activity of fructose-1,6-bisphosphatase. Changes in SPS activity could neither be explained by the CO2 decrease linked to stomatal closure nor by differences in leaf water status.
650 $aCarbon metabolism
650 $aChlorophyll fluorescence
650 $aCoffee
650 $aGas exchange
650 $aSucrose-phosphate synthase
650 $aWater deficit
700 1 $aDAMATTA, F. M.
700 1 $aLOUREIRO, M. E.
700 1 $aFERRÃO, M. A. G.
700 1 $aCORDEIRO, A. T.
773 $tEnvironmental and Experimental Botany$gv. 56, n. 3, p. 263-273, 2006
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Registro original: |
Biblioteca Rui Tendinha (BRT) |
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| Registros recuperados : 9 | |
| 1. |  | FISCHER, L. de R.; MACEDO, I.; KUHLCAMP, K. T.; BARRO, F. L. de S.; MOREIRA, S. O.; ZUCOLOTO, M. Correlações entre caracteres morfoagronômicos e de reação a doenças em mamoeiro da cultivar Rubi Incaper 511. CONGRESSO BRASILEIRO DE FRUTICULTURA, 24., 2016, São Luís. Fruteiras Nativas e Sustentabilidade : anais. São Luís : Sociedade Brasileira de Fruticultura, 2016.| Tipo: Publicação em Anais de Congresso |
| Biblioteca(s): Biblioteca Rui Tendinha. |
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| 4. | | AZEVEDO, L. dos S.; FISCHER, L. de R.; MOITINHO, A. C. R.; SILVA, D. G. da; KUHLCAMP, K. T.; BARRO, F. L. de S.; MOREIRA, S. O. Caracterização agronômica e fitopatológica de famílias meios-irmãos de mamoeiro 'Rubi Incaper 511'. In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA E TECNOLÓGICA (SICT) DO INCAPER, 1., 2016. JORNADA DE INICIAÇÃO CIENTÍFICA, DESENVOLVIMENTO TECNOLÓGICO E INOVAÇÃO DO IFES, 11., 2016. Venda Nova do Imigrante, ES : IFES; Incaper, 2016.| Tipo: Publicação em Anais de Congresso |
| Biblioteca(s): Biblioteca Rui Tendinha. |
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| 5. | | FISCHER, L. de R.; KUHLCAMP, K. T.; ZUCOLOTO, M.; BARRO, F. L. de S.; ZANUNCIO, C. S. D.; MOREIRA, S. O. Análise multivariada da divergência genética da cultivar do mamoeiro Rubi Incaper 511. In: ENCONTRO LATINO-AMERICANO DE INICIAÇÃO CIENTÍFICA, 19.; ENCONTRO LATINO AMERICANO DE PÓS GRADUAÇÃO, 15.; ENCONTRO LATINO AMERICANO DE INICIAÇÃO CIENTIFÍCA JÚNIOR, 9.; ENCONTRO NACIONAL DE INICIAÇÃO À DOCÊNCIA, 5., 2015, São José dos Campos. Ciência, luz e tecnologia. São José dos Campos: UNIVAP, 2015.| Tipo: Publicação em Anais de Congresso |
| Biblioteca(s): Biblioteca Rui Tendinha. |
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| 6. | | MOREIRA, S. O.; MOITINHO, A. C. R.; SILVA, D. G. da.; FISCHER, L. de R.; AZEVEDO, L. dos S.; KUHLCAMP, K. T.; BARRO, F. L. de S. Desenvolvimento inicial de famílias de meio-irmãos procedentes da cultivar Rubi Incaper 511. CONGRESSO BRASILEIRO DE FRUTICULTURA, 24., 2016, São Luís. Fruteiras Nativas e Sustentabilidade : anais. São Luís : Sociedade Brasileira de Fruticultura, 2016.| Tipo: Publicação em Anais de Congresso |
| Biblioteca(s): Biblioteca Rui Tendinha. |
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| 7. | | FISCHER, L. de R.; AZEVEDO, L. do S.; MOITINHO, A. C. R.; SILVA, D. G. de.; KUHLCAMP, K. T.; BARRO, F. L. de S.; MOREIRA, S. O. Seleção entre e dentro de famílias de meios-irmãos da cultivar Rubi Incaper 511. In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA E TECNOLÓGICA (SICT) DO INCAPER, 1., 2016. JORNADA DE INICIAÇÃO CIENTÍFICA, DESENVOLVIMENTO TECNOLÓGICO E INOVAÇÃO DO IFES, 11., 2016. Venda Nova do Imigrante, ES : IFES; Incaper, 2016.| Tipo: Publicação em Anais de Congresso |
| Biblioteca(s): Biblioteca Rui Tendinha. |
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| 8. | | MOREIRA, S. O.; FISCHER, L. de R.; AZEVEDO, L. dos S.; ZUCOLOTO, M.; KUHLCAMP, K. T.; BARRO, F. L. de S. Tamanho amostral ótimo para variáveis morfoagronômicas em frutos de mamão. CONGRESSO BRASILEIRO DE FRUTICULTURA, 24., 2016, São Luís. Fruteiras Nativas e Sustentabilidade : anais. São Luís : Sociedade Brasileira de Fruticultura, 2016.| Tipo: Publicação em Anais de Congresso |
| Biblioteca(s): Biblioteca Rui Tendinha. |
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| 9. | | AZEVEDO, L. dos S.; FISCHER, L. de R,; BARRO, F. L. de S.; KUHLCAMP, K. T.; SILVA, D. G. da.; MOITINHO, A. C. R.; ZUCOLOTO, M.; MOREIRA, S. O. Parâmetros genéticos em famílias de meios-irmãos da cultivar Rubi Incaper 511 na fase vegetativa. CONGRESSO BRASILEIRO DE FRUTICULTURA, 24., 2016, São Luís. Fruteiras Nativas e Sustentabilidade : anais. São Luís : Sociedade Brasileira de Fruticultura, 2016.| Tipo: Publicação em Anais de Congresso |
| Biblioteca(s): Biblioteca Rui Tendinha. |
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| Registros recuperados : 9 | |
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