Plant SUT Sucrose Transporters: Structure, Evolution and Biological Functions

Sucrose transporters (SUTs) are essential for exporting and moving sucrose from source leaves to sink organs in plants. Many researchers have addressed SUT functions in plant development regulation and stress responses, as well as on the transporter's evolution and regulation. In this paper, we reviewed the updated achievements of plant SUTs in evolution, development and abiotic stresses. Many SUTs regulate fruit and seed sugar accumulation, which provides a theoretical application of SUT genes in crop yield and quality improvement. This review provides more in-depth and comprehensive information to help elucidate the molecular basis of the function of SUTs in plants.