The Major Membrane Lipids in Plant Thylakoids and Their Biosynthesis
Chloroplast is the main place for photosynthesis of green plants,and thylakoid is the key component of the membrane structure in the chloroplast.Various protein complexes and lipids are distributed on the plant thylakoid mem-brane.About half of the lipid components are glycolipids,mainly including monogalactosyldiacylglycerol,digalacto-syldiacylglycerol,and sulfoquinovosyldiacylglycerol.The proportion of phospholipid in the membrane is very low,and the main phospholipid component is phosphatidylglycerol.Most protein complexes of photosynthesis are embedded in regularly arrranged polar lipids.These membrane lipids are essential for plant photosynthesis and growth.A comprehensive knowledge on the structure and function of the major lipids in thylakoid membranes in prokaryotes or eukaryotes and their biosynthesis will help our further study in understanding of the mechanism of photosynthesis light energy and substance conversion,and provide theoretical basis for the study of membrane lipids in plant thylakoids.
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