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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
23/04/2003 |
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Data da última atualização: |
21/10/2025 |
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Autoria: |
HAWKER, J. S. |
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Título: |
Changes in the activities of enzymes concerned with sugar metabolism during the development of grape berries. |
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Ano de publicação: |
1969 |
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Fonte/Imprenta: |
Phytochemistry, v. 8, p. 9-17, 1969. |
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Idioma: |
Inglês |
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Conteúdo: |
Changes in activities of invertase, hexokinase, glucose 6-phosphate dehydrogenase, sucrose synthetase, sucrose phosphate synthetase and sucrose phosphatase in extracts prepared with Carbowax 4000 were studied at weekly intervals during the devclopment of sultana grape berries. The characteristic rapid rise in lhe rate of sugar accumulation by lhe berries about halfway through development was preceded by an increase in the activity of invertase. At about the same time that the rate of sugar accumulation increased the activities of sucrose synthetase, sucrose phosphate synthetase and sucrose phosphatase increased. The activity of glucose 6-phosphate dehydrogenase decreased ear1y in the development of the berries and remained low. The possibility that sugar accumulation in grapes occurs by a pathway involving the synthesis and hydrolysis of sucrose phosphate is discussed in terms ofthe changing activities of the enzymes necessary for this pathway to operate. |
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Palavras-Chave: |
Videira. |
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Thesagro: |
Enzima; Metabolismo; Uva. |
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Thesaurus Nal: |
Grapes. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 01479naa a2200181 a 4500
001 1148971
005 2025-10-21
008 1969 bl uuuu u00u1 u #d
100 1 $aHAWKER, J. S.
245 $aChanges in the activities of enzymes concerned with sugar metabolism during the development of grape berries.$h[electronic resource]
260 $c1969
520 $aChanges in activities of invertase, hexokinase, glucose 6-phosphate dehydrogenase, sucrose synthetase, sucrose phosphate synthetase and sucrose phosphatase in extracts prepared with Carbowax 4000 were studied at weekly intervals during the devclopment of sultana grape berries. The characteristic rapid rise in lhe rate of sugar accumulation by lhe berries about halfway through development was preceded by an increase in the activity of invertase. At about the same time that the rate of sugar accumulation increased the activities of sucrose synthetase, sucrose phosphate synthetase and sucrose phosphatase increased. The activity of glucose 6-phosphate dehydrogenase decreased ear1y in the development of the berries and remained low. The possibility that sugar accumulation in grapes occurs by a pathway involving the synthesis and hydrolysis of sucrose phosphate is discussed in terms ofthe changing activities of the enzymes necessary for this pathway to operate.
650 $aGrapes
650 $aEnzima
650 $aMetabolismo
650 $aUva
653 $aVideira
773 $tPhytochemistry$gv. 8, p. 9-17, 1969.
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| 1. |  | SORIANO, M. L.; SILVA, P. P.; RAMALHO NETO, E.; SA, M. F. G. de; SANTOS, J. M.; DUARTE FILHO, L. S. C.; TODARO, A. R.; XAVIER, V. S. Effect of water stress on proteins expression in sugarcane roots (Saccharum ssp.). In: CONGRESSO BRASILEIRO DE BIOTECNOLOGIA, 3., 2010, Fortaleza. Programa e resumos. Brasília, DF: SBBiotec, 2010. p. 153.| Tipo: Resumo em Anais de Congresso |
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