Journal
BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS
Volume 1847, Issue 9, Pages 889-899Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.bbabio.2015.02.002
Keywords
Plastoglobule; Lipid droplet; Thylakoid membrane; Lipid remodeling; Microdomain; Plastid differentiation
Categories
Funding
- Swiss National Science Foundation [31003A_127380, 31003A_144156]
- University de Neuchatel
- Swiss National Science Foundation (SNF) [31003A_127380, 31003A_144156] Funding Source: Swiss National Science Foundation (SNF)
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Photosynthesis is the key bioenergetic process taking place in the chloroplast The components of the photosynthetic machinery are embedded in a highly dynamic matrix, the thylakoid membrane. This membrane has the capacity to adapt during developmental transitions and under stress conditions. The galactolipids are the major polar lipid components of the thylakoid membrane conferring bilayer properties, while neutral thylakoid lipids such as the prenyllipids and carotenoids contribute to essential functions such as electron transport and photoprotection. Despite a large number of studies, the intriguing processes of thylakoid membrane biogenesis and dynamics remain unsolved. Plastoglobules, thylakoid-associated lipid droplets, appear to actively participate in thylakoid function from biogenesis to senescence. Recruitment of specific proteins enables the plastoglobules to act in metabolite synthesis, repair and disposal under changing environmental conditions and developmental stages. In this review, we describe plastoglobules as thylakoid membrane microdomains and discuss their involvement in lipid remodeling during stress and in the conversion from one plastid type to another. (C) 2015 Elsevier B.V. All rights reserved.
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