Transporters in starch synthesis
- 1 January 2007
- journal article
- Published by CSIRO Publishing in Functional Plant Biology
- Vol. 34 (6), 474-479
- https://doi.org/10.1071/fp06280
Abstract
Starch is synthesised and stored in plastids. In autotrophic tissues, the carbon skeletons and energy required for starch synthesis are directly available from photosynthesis. However, plastids of heterotrophic tissues require the metabolites for starch synthesis to be imported. Depending on plant species and tissue type, import is facilitated by several different plastid inner envelope metabolite transporters. Commonly, glucose-6-phosphate/phosphate translocators and adenylate translocators are used, but in the cereal endosperm, the role is carried out by ADP glucose transporters (Brittle1, BT1). This review predominantly focuses on transporters of the plastid inner envelope membrane. Their roles are discussed within an overview of starch synthesis. We also examine additional functions of these transporters according to our current knowledge.Keywords
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