Sucrose Synthase Phosphate
Mostrando 1-12 de 102 artigos, teses e dissertações.
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1. Chilling privation during dormancy period and carbohydrate mobilization in Japanese pear trees
The flower bud abortion is one of the main problems that limit commercial pear (Pyrus pyrifolia) production in the southern region of Brazil. Insufficient chilling during the dormancy period is known as the main factor of this problem. One of the hypotheses to explain this problem is that the starch mobilization and carbohydrate fluxes to the buds are impede
Scientia Agricola. Publicado em: 2011-08
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2. Effects of shade on the development and sugar metabolism of coffee (Coffea arabica L.) fruits.
Coffee fruits grown in shade are characterized by larger bean size than those grown under full-sun conditions. The present study assessed the effects of shade on bean characteristics and sugar metabolism by analyzing tissue development, sugar contents, activities of sucrose metabolizing enzymes and expression of sucrose synthase-encoding genes in fruits of c
PLANT PHYSIOLOGY AND BIOCHEMISTRY. Publicado em: 2011
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3. Effects of shade on the development and sugar metabolism of coffee (Coffea arabica L.) fruits.
Coffee fruits grown in shade are characterized by larger bean size than those grown under full-sun conditions. The present study assessed the effects of shade on bean characteristics and sugar metabolism by analyzing tissue development, sugar contents, activities of sucrose metabolizing enzymes and expression of sucrose synthase-encoding genes in fruits of c
PLANT PHYSIOLOGY AND BIOCHEMISTRY. Publicado em: 2011
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4. Expressão de genes de resposta a estresses ambientais em mutantes defectivos de milho e Arabidopsis
Reverse genetics and gene expression analysis has been the main approach adopted in order to carry out the functional characterization of genes. Results from such studies have typically demonstrated that same gene can be involved in different cell functions. In this context, analysis of trehalose metabolism in plants has revealed that this pathway plays an i
Publicado em: 2008
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5. Sucrose metabolism in coffee fruit / Metabolismo da sacarose em frutos de cafe
Since coffee culture productivity is straightly connected to three basic production factors: climate, genetics and physiology, herein some aspects of the carbohydrates metabolism involved in the process of coffee grains filling through its development were analyzed. It is known the carbohydrates composition, mainly the polysaccharides composition of the coff
Publicado em: 2006
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6. Purification, partial characterization and expression of sucrose phosphate synthase during banana ripening / Purificação, caracterização parcial e expressão da sacarose-fosfato sintase durante o amadurecimento de banana.
A enzima sacarose-fosfato sintase foi parcialmente purificada de bananas fisiologicamente imaturas (70 dias após a antese), fisiologicamente maturas pré-climatéricas (110 dias após a antese) e climatéricas (130 dias após a antese). De acordo com os resultados apresentados a SPS de banana é uma enzima constituída de subunidade de 116 kD, apresentando
Publicado em: 1997
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7. Light/Dark Profiles of Sucrose Phosphate Synthase, Sucrose Synthase, and Acid Invertase in Leaves of Sugar Beets
The activity of sucrose phosphate synthase, sucrose synthase, and acid invertase was monitored in 1- to 2-month-old sugar beet (Beta vulgaris L.) leaves. Sugar beet leaves achieve full laminar length in 13 days. Therefore, leaves were harvested at 2-day intervals for 15 days. Sucrose phosphate synthase activity was not detectable for 6 days in the dark-grown
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8. Phytochrome Mediated Regulation of Sucrose Phosphate Synthase Activity in Maize
The extractable activity of sucrose phosphate synthase was determined in etiolated seedlings of maize (Zea mays L.), soybean (Glycine max [L.] Merr.), and sugar beet (Beta vulgaris L.) following treatments of changing light quality. A 30-minute illumination of 30 microeinsteins per square meter per second white light produced a three-fold increase in sucrose
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9. Kinetic Characterization of Spinach Leaf Sucrose-Phosphate Synthase 1
The spinach (Spinacia oleracea) leaf sucrose-phosphate synthase was partially purified via DEAE-cellulose chromatography, and its kinetic properties were studied. Fructose-6-phosphate saturation curves were sigmoidal, while UDPglucose saturation curves were hyperbolic. At subsaturating concentrations of fructose-6-phosphate, 1,5 anhydroglucitol-6-phosphate h
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10. Effect of Night Temperature on the Activity of Sucrose Phosphate Synthase, Acid Invertase, and Sucrose Synthase in Source and Sink Tissues of Rosa hybrida cv Golden Times
Sucrose phosphate synthase and acid invertase activities in the mature leaves of roses (Rosa hybrida cv Golden Times) were greater in plants grown under a higher night temperature than under a lower temperature regime. In young shoots, the activity of acid invertase was promoted by the lower temperature while that of sucrose synthase was increased at the hig
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11. Expression of a maize sucrose phosphate synthase in tomato alters leaf carbohydrate partitioning.
We isolated a complementary DNA sequence for the enzyme sucrose phosphate synthase (SPS) from maize utilizing a limited amino acid sequence. The 3509-bp cDNA encodes a 1068-amino acid polypeptide. The identity of the cDNA was confirmed by the ability of the cloned sequence to direct sucrose phosphate synthesis in Escherichia coli. Because no plant-specific f
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12. Regulation of Photosynthetic Carbon Metabolism in Cucumber by Light Intensity and Photosynthetic Period 1
The effects of photosynthetic periods and light intensity on cucumber (Cucumis sativus L.) carbon exchange rates and photoassimilate partitioning were determined in relation to the activities of galactinol synthase and sucrose-phosphate synthase. Carbon assimilation and partitioning appeared to be controlled by different mechanisms. Carbon exchange rates wer