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首页> 外文期刊>Journal of Experimental Botany >An update on sugar transport and signalling in grapevine
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An update on sugar transport and signalling in grapevine

机译：葡萄中糖转运和信号传导的最新进展

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摘要

In addition to their role as a source of reduced carbon, sugars may directly or indirectly control a wide range of activities in plant cells, through transcriptional and post-translational regulation. This control has been studied in detail using Arabidopsis thaliana, where genetic analysis offers many possibilities. Much less is known about perennial woody species. For several years, various aspects of sugar sensing and signalling have been investigated in the grape (Vitis vinifera L.) berry, an organ that accumulates high concentrations of hexoses in the vacuoles of flesh cells. Here we review various aspects of this topic: the molecular basis of sugar transport and its regulation by sugars in grapevine; the functional analysis of several sugar-induced genes; the effects of some biotic and abiotic stresses on the sugar content of the berry; and finally the effects of exogenous sugar supply on the ripening process in field conditions. A picture of complex feedback and multiprocess regulation emerges from these data.
机译：除了作为减少碳源的作用外，糖还可以通过转录和翻译后调控直接或间接控制植物细胞中的多种活性。已经使用拟南芥（Arabidopsis thaliana）详细研究了这种控制，其中遗传分析提供了许多可能性。对于多年生木本植物知之甚少。几年来，已经在葡萄（Vitis vinifera L.）浆果中研究了糖感测和信号转导的各个方面，该浆果在肉细胞的液泡中积累了高浓度的己糖。在这里，我们回顾了本主题的各个方面：葡萄中糖转运的分子基础及其对糖的调节;几个糖诱导基因的功能分析;一些生物和非生物胁迫对浆果糖含量的影响;最后是外源糖供应对田间条件下成熟过程的影响。从这些数据中可以看到复杂的反馈和多过程调节的情况。

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