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Front. Plant Sci. | doi: 10.3389/fpls.2019.00207

Possible roles of membrane trafficking components for lipid droplet dynamics in Higher Plants and Green Algae

 Shuxian Huang1,  Liwen Jiang1, 2 and Xiaohong Zhuang1*
  • 1School of Life Sciences, The Chinese University of Hong Kong, China
  • 2Shenzhen Research Institute, The Chinese University of Hong Kong, China

Lipid droplets are ubiquitous dynamic organelles that contain neutral lipids surrounded by a phospholipid monolayer. They can store and supply lipids for energy metabolism and membrane synthesis. In addition, protein transport and lipid exchange often occur between LDs and various organelles to control lipid homeostasis in response to multiple stress responses and cellular signaling. In recent years, multiple membrane trafficking proteins have been identified through LD proteomics and genetic analyses. These membrane trafficking machineries are emerging as critical regulators to function in different LD-organelle interactions e.g. for LD dynamics, biogenesis and turnover. In this review, we will summarize recent advances in regard to LD-related membrane trafficking proteins and discuss future investigations in higher plants and green algae.

Keywords: Lipid droplet biogenesis, Membrane trafficking, ESCRT, GTPase, SNARE, retromer, Lipophagy

Received: 12 Nov 2018; Accepted: 07 Feb 2019.

Edited by:

Yohann Boutté, UMR5200 Laboratoire de biogenèse membranaire (LBM), France

Reviewed by:

Jaideep Mathur, University of Guelph, Canada
Lysiane Brocard, Université de Bordeaux, France  

Copyright: © 2019 Huang, Jiang and Zhuang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Prof. Xiaohong Zhuang, School of Life Sciences, The Chinese University of Hong Kong, Shatin, China, app333@gmail.com