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

The Plant cell - 1 Oct 2020

Zhou Yuelong, Yang Yang, Niu Yue, Fan TingTing, Qian Dong, Luo Changxin, Shi Yumei, Li Shanwei, An Lizhe, Xiang Yun

Abstract excerpt

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 (Arabidopsis thaliana) AMINOPHOSPHOLIPID ATPASE 3 (ALA3) function resulted in a marked decrease in YFP-RabA4b/ RFP-RabA4d-...

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Identifiers

PMID: 32817253
DOI: 10.1105/tpc.19.00844
PMCID: PMC7534478

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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