Lipid metabolism in chromoplast membranes from the daffodil: Glycosylation and acylation |
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Authors: | B. Liedvogel H. Kleinig |
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Affiliation: | (1) Lehrstuhl für Zellbiologie, Institut für Biologie II, Schänzlestraße 9-15, D-7800 Freiburg i.Br., Germany |
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Abstract: | The non-photosynthetic chromoplast membranes from the corona ofNarcissus pseudonarcissus L. were investigated for their lipid synthetic capabilities. The following activities were detected: galactosylation of diacylglycerol and galactosydiacylglycerols, glycosylation of sterols, acylation of monogalactosyldiacylglycerol and steryl glycosides from an unknown endogenous donor, acylation of phospholipids from acyl-CoA, and acylation of phosphatidyl inositol from phosphatidyl choline. Furthermore, activities of an acyl thioesterase, a sugar epimerase, and a phospholipase A2 were measured.Abbreviations MGDG monogalactosyldiacylglycerol - DGDG digalactosyldiacylglycerol - TGDG tri-and tetragalactosyldiacylglycerol - SG steryl glycoside - SL sulfolipid - ACP acyl carrier protein |
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Keywords: | Chromoplasts Lipid metabolism Narcissus Sterols |
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