Sucrose : metabolite and signaling molecule

• Sucrose is a molecule that is synthesized only by oxygenic photosynthetic organisms. In plants, sucrose is synthesized in source tissues and then can be transported to sink tissues, where it is utilized or stored. Interestingly, sucrose is both a metabolite and a signaling molecule. Manipulating the rate of the synthesis, transport or degradation of sucrose affects plant growth, development and physiology. Altered sucrose levels changes the quantity of sucrose derived metabolites and sucrose-specific signaling. In this paper, these changes are summarized. Better understanding of sucrose metabolism and sucrose sensing systems in plants will lead to opportunities to adapt plant metabolism and growth.

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