Review and Progress

Review on the Phosphorylation of PIN Protein in Auxin Transport  

Jia Yan , Yue Bai
Forestry College of Inner Mongolia Agricultural University, Hohhot, 010000, China
Author    Correspondence author
Genomics and Applied Biology, 2021, Vol. 12, No. 2   
Received: 04 Sep., 2020    Accepted: 09 Oct., 2020    Published: 10 Mar., 2021
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This article was first published in Molecular Plant Breeding in Chinese, and here was authorized to translate and publish the paper in English under the terms of Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Auxin plays an important role in regulating of many development processes at the plants growth. It could establish concentration gradient through polar transport to maintain the formation, growth and morphogenesis of plant tissues and organs. As an auxin transport carrier on the cell membrane, the asymmetric distribution of PIN protein determines the flow direction of auxin, forms a concentration gradient, provides specific position and direction information for the growth and development of cells in various parts of the plant. In this process, the phosphorylation/dephosphorylation of PIN protein and the endocytosis mediated by clathrin affect the polar positioning of PIN protein, thereby regulating the morphogenesis of plants. This study mainly reviews the mechanism of the phosphorylation modification of PIN protein in the polar transport of auxin. It will provide new insights into the molecular mechanism of PIN phosphorylation in auxin polar transport. Furthermore, it also provides a theoretical reference for further revealing the mechanism of auxin transport regulation.

Plant auxin; Polar transport; PIN protein; Phosphorylation

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Genomics and Applied Biology
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