Microalgal lipid droplets: composition, diversity, biogenesis and functions

Hugh Goold, Fred Beisson, Gilles Peltier, Yonghua Li-Beisson*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

75 Citations (Scopus)

Abstract

Lipid droplet is the major site of neutral lipid storage in eukaryotic cells, and increasing evidence show its involvement in numerous cellular processes such as lipid homeostasis, signaling, trafficking and inter-organelle communications. Although the biogenesis, structure, and functions of lipid droplets have been well documented for seeds of vascular plants, mammalian adipose tissues, insects and yeasts, relative little is known about lipid droplets in microalgae. Over the past 5 years, the growing interest of microalgae as a platform for biofuel, green chemicals or value-added polyunsaturated fatty acid production has brought algal lipid droplets into spotlight. Studies conducted on the green microalga Chlamydomonas reinhardtii and other model microalgae such as Haematococcus and Nannochloropsis species have led to the identification of proteins associated with lipid droplets, which include putative structural proteins different from plant oleosins and animal perilipins, as well as candidate proteins for lipid biosynthesis, mobilization, trafficking and homeostasis. Biochemical and microscopy studies have also started to shed light on the role of chloroplasts in the biogenesis of lipid droplets in Chlamydomonas.

Original languageEnglish
Pages (from-to)545-555
Number of pages11
JournalPlant Cell Reports
Volume34
Issue number4
DOIs
Publication statusPublished - 1 Apr 2015
Externally publishedYes

Keywords

  • Lipid homeostasis
  • Lipid turnover
  • Major lipid droplet protein
  • Microalgal oil
  • Oil bodies

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