Rice SUT and SWEET Transporters

被引:43
作者
Hu, Zhi [1 ]
Tang, Zhenjia [1 ]
Zhang, Yanming [2 ]
Niu, Liping [2 ]
Yang, Fang [2 ]
Zhang, Dechun [3 ]
Hu, Yibing [1 ]
机构
[1] Nanjing Agr Univ, Coll Resources & Environm Sci, Nanjing 210095, Peoples R China
[2] Wuhan Univ, Coll Life Sci, State Key Lab Hybrid Rice, Wuhan 430072, Peoples R China
[3] China Three Gorges Univ, Biotechnol Res Ctr, Yichang 443002, Peoples R China
关键词
rice; SUT(C); SWEET; sugar; transporter; DISEASE-SUSCEPTIBILITY GENE; SUCROSE TRANSPORTER; XANTHOMONAS-ORYZAE; BACTERIAL-BLIGHT; GERMINATING EMBRYOS; SUGAR TRANSPORTERS; PHLOEM TRANSPORT; SOURCE ORGANS; TAL EFFECTOR; HEAT-STRESS;
D O I
10.3390/ijms222011198
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Sugar transporters play important or even indispensable roles in sugar translocation among adjacent cells in the plant. They are mainly composed of sucrose-proton symporter SUT family members and SWEET family members. In rice, 5 and 21 members are identified in these transporter families, and some of their physiological functions have been characterized on the basis of gene knockout or knockdown strategies. Existing evidence shows that most SUT members play indispensable roles, while many SWEET members are seemingly not so critical in plant growth and development regarding whether their mutants display an aberrant phenotype or not. Generally, the expressions of SUT and SWEET genes focus on the leaf, stem, and grain that represent the source, transport, and sink organs where carbohydrate production, allocation, and storage take place. Rice SUT and SWEET also play roles in both biotic and abiotic stress responses in addition to plant growth and development. At present, these sugar transporter gene regulation mechanisms are largely unclear. In this review, we compare the expressional profiles of these sugar transporter genes on the basis of chip data and elaborate their research advances. Some suggestions concerning future investigation are also proposed.
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页数:12
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