SEPARATION,STRUCTURE AND METABOLISM OF MONOGALACTOSYL DIGLYCERIDE SPECIES IN CHLORELLA VULGARIS

被引:47
作者
NICHOLS, BW
MOORHOUS.R
机构
[1] Biochemistry Division, Unilever Research Laboratory, Colworth House, Sharnbrook, Bedford
关键词
D O I
10.1007/BF02530998
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The monogalactosyl diglyceride fraction from heterotrophically cultured cells of Chlorella vulgaris has been fractionated into species of different fatty acid composition by argentation thin layer chromatography of the unmodified glycolipid. Five major subfractions were isolated, corresponding to groups of molecular species containing 1, 2, 3, 4 and 5 double bonds per molecule, respectively. Incubation of Chlorella vulgaris with 2-14C-sodium acetate, followed by radiochemical analysis of the fatty acids of the individual monogalactosyl diglyceride species, demonstrated that at any time the specific activity of a single fatty acid can vary considerably among the various species in which it occurs. These results are consistent with previously reported evidence that significant changes in the fatty acid composition of the monogalactosyl diglyceride fraction of Chlorella vulgaris occur following its de novo synthesis. © 1969 American Oil Chemists' Society.
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页码:311 / &
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