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Lateral heterogeneity of polar lipids in the thylakoid membranes of spinach chloroplasts
Author(s) -
Gounaris Kleoniki,
Sundby Cecilia,
Andersson Bertil,
Barber James
Publication year - 1983
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/0014-5793(83)80271-3
Subject(s) - thylakoid , spinach , membrane , chloroplast , biochemistry , chemistry , chenopodiaceae , fatty acid , chromatography , biophysics , biology , gene
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.