Plant SWEET Family of Sugar Transporters: Structure, Evolution and Biological Functions

Biomolecules

Mu Zhuang¹  Limei Yang¹  Yangyong Zhang¹  Jialei Ji¹  Yong Wang¹  Honghao Lv¹  Zhiyuan Fang¹ 

[1] Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Ministry of Agriculture, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China;

关键词: SWEET;    sugar transporter;    phloem loading;    plant–pathogen interaction;    abiotic stress;   

DOI  :  10.3390/biom12020205

来源: DOAJ

【 摘 要 】

The SWEET (sugars will eventually be exported transporter) family was identified as a new class of sugar transporters that function as bidirectional uniporters/facilitators and facilitate the diffusion of sugars across cell membranes along a concentration gradient. SWEETs are found widely in plants and play central roles in many biochemical processes, including the phloem loading of sugar for long-distance transport, pollen nutrition, nectar secretion, seed filling, fruit development, plant–pathogen interactions and responses to abiotic stress. This review focuses on advances of the plant SWEETs, including details about their discovery, characteristics of protein structure, evolution and physiological functions. In addition, we discuss the applications of SWEET in plant breeding. This review provides more in-depth and comprehensive information to help elucidate the molecular basis of the function of SWEETs in plants.

【 授权许可】

Unknown