Lateral heterogeneity of polar lipids in the thylakoid membranes of spinach chloroplasts

FEBS Letters

Sundby, Cecilia¹  Andersson, Bertil¹  Barber, James²  Gounaris, Kleoniki² 

[1] Department of Biochemistry, University of Lund, PO Box 740 S-220 07 Lund, Sweden;ARC Photosynthesis Research Group, Department of Pure and Applied Biology, Imperial College, London SW7 2BB, England

关键词: Chloroplast lipid;    Lipid asymmetry;    Membrane lateral heterogeneity;    Phase partition;    Thylakoid organization;    Thylakoid subfractionation;    MGDG;    monogalactosyldiacylglycerol;    DGDG;    digalactosyldiacylglycerol;    PG;    phosphatidylglycerol;    SQDG;    sulphoquinovosyldiacylglycerol;    PC;    phosphatidylcholine;    OPL;    other phospholipids;    DMSO;    dimethylsulfoxide;    PS;    photosystem;   

DOI  :  10.1016/0014-5793(83)80271-3

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

Isolated appressed and non-appressed membrane fractions of spinach thylakoids have been subjected to lipid class and fatty acid composition analyses. The ratio of monogalactosyldiacylglycerol to digalactosyldiacylglycerol was much higher in the fractions obtained from the appressed membranes compared with those derived from non-appressed membranes. Moreover, appressed thylakoids contained a larger amount of anionic lipids in comparison with non-appressed thylakoids. No major differences were observed in the fatty acid composition between the thylakoid fractions. The results are discussed in terms of the possible significance of lipid heterogeneity in the chloroplast thylakoid membrane.

【 授权许可】

Unknown