Chinese Journal OF Rice Science >
Research Progress in Physiologic Functions of Heterotrimeric G Protein in Rice
*Corresponding author：E-mailguolongb@mail.hz.zj.cnhuxingmingx@126.com
Received date: 2015-01-08
Revised date: 2015-04-12
Online published: 2015-09-10
The GTP-binding protein (G protein), consisting of three subunits of α, β and γ, is an important signaling molecule, playing a key role in growth and development in organism. Through the coupled receptors on the surface of cells, G protein perceives stimulation outside, then delivers the signals to intracellular proteins, thus affects the behavior of cells. G proteins share similar molecular structures in plants and animals, but signal transition in the former is completed by atypical “self activation” mechanism and effector proteins, regulating the growth and development. We review the structures and functions of G proteins, characters and differences in molecular regular mechanisms, and G protein subunits genes of D1, GS3, DEP1 and qNGR9 in rice, which involved in signal transduction of hormone, disease resistance and stress resistance, and controlling of rice plant types, grain types and nitrogen utilization efficiency. Additionally, the coupled signaling components and functions, systemic biology and applications of G protein were also prospected.
Yong-tao CUI, Li-wen WU, Long-biao GUO, Xing-ming HU . Research Progress in Physiologic Functions of Heterotrimeric G Protein in Rice[J]. Chinese Journal OF Rice Science, 2015 , 29(5) : 546 -558 . DOI: 10.3969/j.issn.1001G7216.2015.05.012
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