A role for ‘futile cycles’ involving invertase and sucrose synthase in sucrose metabolism of tomato fruit
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چکیده
منابع مشابه
A Tomato Vacuolar Invertase Inhibitor Mediates Sucrose Metabolism and Influences Fruit Ripening.
Fruit ripening is a complex process that involves a series of physiological and biochemical changes that ultimately influence fruit quality traits, such as color and flavor. Sugar metabolism is an important factor in ripening, and there is evidence that it influences various aspects of ripening, although the associated mechanism is not well understood. In this study, we identified and analyzed ...
متن کاملA Tomato Vacuolar Invertase Inhibitor Mediates Sucrose Metabolism and Influences Fruit Ripening1
Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Xiangshan, Haidian District, Beijing 100093, China (G.Q., Z.Z., W.W., J.C., Y.C., S.T.); University of Chinese Academy of Sciences, Yuquanlu, Beijing 100049, China (W.W., J.C., Y.C., S.T.); and Robert W. Holley Center for Agriculture and Health, Agricultural Research Service, United States Department of Agricul...
متن کاملIsolation and sequencing of tomato fruit sucrose synthase cDNA.
Suc synthase (EC 2. 4. 1. 13) catalyzes the reversible reaction: Suc + UDP c-, UDP-Glc + Fru. In plants, its main physiological function is to cleave Suc and generate UDPGlc, which is used in such diverse pathways as starch synthesis, cell wall component synthesis, and energy generation (Huber and Akazawa, 1986; Sung et al., 1988). It has been demonstrated that Suc synthase is a key enzyme duri...
متن کاملSucrose Synthase, Starch Accumulation, and Tomato Fruit Sink Strength.
Contrasting evidence has accumulated regarding the role of acid invertase and sucrose synthase in tomato fruit sink establishment and maintenance. In this work the relationships among the activities of sucrose synthase and acid invertase, Lycopersicon esculentum Mill cv UC-82B fruit growth, and starch accumulation were analyzed in fruit at 0 to 39 d after anthesis. Sucrose synthase, but not aci...
متن کاملAntisense inhibition of tomato fruit sucrose synthase decreases fruit setting and the sucrose unloading capacity of young fruit.
The role of sucrose synthase (SuSy) in tomato fruit was studied in transgenic tomato (Lycopersicon esculentum) plants expressing an antisense fragment of fruit-specific SuSy RNA (TOMSSF) under the control of the cauliflower mosaic virus 35S promoter. Constitutive expression of the antisense RNA markedly inhibited SuSy activity in flowers and fruit pericarp tissues. However, inhibition was only ...
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ژورنال
عنوان ژورنال: Journal of Experimental Botany
سال: 2001
ISSN: 1460-2431,0022-0957
DOI: 10.1093/jexbot/52.358.881