The Tip-Localized Phosphatidylserine Established by Arabidopsis ALA3 Is Crucial for Rab GTPase-Mediated Vesicle Trafficking and Pollen Tube Growth

• Published in: The Plant cell Vol. 32; no. 10; pp. 3170 - 3187
• Main Authors: Zhou, Yuelong, Yang, Yang, Niu, Yue, Fan, TingTing, Qian, Dong, Luo, Changxin, Shi, Yumei, Li, Shanwei, An, Lizhe, Xiang, Yun
• Format: Journal Article
• Language: English
• Published: England American Society of Plant Biologists 01.10.2020
• Subjects: Arabidopsis - genetics; Arabidopsis - growth & development; Arabidopsis - metabolism; Arabidopsis Proteins - genetics; Arabidopsis Proteins - metabolism; Cell Wall - chemistry; Cell Wall - metabolism; Mutation; Phosphatidylserines - metabolism; Plants, Genetically Modified; Pollen Tube - cytology; Pollen Tube - genetics; Pollen Tube - growth & development; Pollen Tube - metabolism; rab GTP-Binding Proteins - genetics; rab GTP-Binding Proteins - metabolism; Secretory Vesicles - genetics; Secretory Vesicles - metabolism

RabA4 subfamily proteins, the key regulators of intracellular transport, are vital for tip growth of plant polar cells, but their unique distribution in the apical zone and role in vesicle targeting and trafficking in the tips remain poorly understood. Here, we found that loss of Arabidopsis ( ) AMI...