Lanassa Bassukas Alkistis E, Xiao Yao, Schwechheimer Claus
Plant Systems Biology, School of Life Sciences, Technical University of Munich, Emil-Ramann-Strasse 8, 85354, Freising, Germany.
Plant Systems Biology, School of Life Sciences, Technical University of Munich, Emil-Ramann-Strasse 8, 85354, Freising, Germany.
Curr Opin Plant Biol. 2022 Feb;65:102146. doi: 10.1016/j.pbi.2021.102146. Epub 2021 Dec 30.
The directional transport of the phytohormone auxin is required for proper plant development and tropic growth. Auxin cell-to-cell transport gains directionality through the polar distribution of 'canonical' long PIN-FORMED (PIN) auxin efflux carriers. In recent years, AGC kinases, MAP kinases, Ca/CALMODULIN-DEPENDENT PROTEIN KINASE-RELATED KINASEs and receptor kinases have been implicated in the control of PIN activity, polarity and trafficking. In this review, we summarize the current knowledge in understanding the posttranslational regulation of PINs by these different protein kinase families. The proposed regulation of PINs by AGC kinases after salt stress and by the stress-activated MAP kinases suggest that abiotic and biotic stress factors may modulate auxin transport and thereby plant growth.
植物激素生长素的定向运输对于植物的正常发育和向性生长是必需的。生长素在细胞间的运输通过“经典”的长 PIN 形成（PIN）生长素流出载体的极性分布获得方向性。近年来，AGC 激酶、丝裂原活化蛋白激酶（MAP 激酶）、钙/钙调蛋白依赖性蛋白激酶相关激酶和受体激酶已被证明参与 PIN 活性、极性和运输的调控。在本综述中，我们总结了目前关于这些不同蛋白激酶家族对 PIN 进行翻译后调控的认识。盐胁迫后 AGC 激酶对 PIN 的调控以及应激激活的 MAP 激酶对 PIN 的调控表明，非生物和生物胁迫因素可能调节生长素运输，从而影响植物生长。
