Rho-of-plant activated root hair formation requires Arabidopsis YIP4a/b gene function

作者：Delphine Gendre, Anirban Baral, Xie Dang, Nicolas Esnay, Yohann Boutté, Thomas Stanislas, Thomas Vain, Stéphane Claverol, Anna Gustavsson, Deshu Lin, Markus Grebe, Rishikesh P. Bhalerao · 发表于：Development · 年份：2019 · DOI：10.1242/dev.168559 · 被引用次数：38 · 研究领域：Plant Reproductive Biology、Plant Molecular Biology Research、Photosynthetic Processes and Mechanisms

Root hairs are protrusions from root epidermal cells with crucial roles in plant soil interactions. Although much is known about patterning, polarity and tip growth of root hairs, contributions of membrane trafficking to hair initiation remain poorly understood. Here, we demonstrate that the trans-Golgi network-localized YPT-INTERACTING PROTEIN 4a and YPT-INTERACTING PROTEIN 4b (YIP4a/b) contribute to activation and plasma membrane accumulation of Rho-of-plant (ROP) small GTPases during hair initiation, identifying YIP4a/b as central trafficking components in ROP-dependent root hair formation.