Synthesis of sulphoquinovosyl diacylglycerol by higher plants.
The biosynthesis of sulphoquinovosyl diacylglycerol in germinating alfalfa seeds has been examined. Some incorporation of [35S]sulphate into the lipid occurs before chlorophyll production anh this is unaffected by chloramphenicol. Cysteic acid, molybdate, sulphite and sulpholactic acid all reduce incorporation of [35S]sulphate into sulphoquinovosyl diacylgylcerol. Some comparisons are made with other seed types. The results indicate that sulphoquinovosyl diacylgylcerol synthesis in alfalfa probably proceeds by a pathway similar to that in Euglena.
D000085:Acetates / Q000494:pharmacology; D002701:Chloramphenicol / Q000494:pharmacology; D003544:Cysteic Acid / Q000378:metabolism; D004075:Diglycerides / Q000096:biosynthesis*; D005989:Glycerides / Q000096:biosynthesis*; D006017:Glycolipids / Q000378:metabolism; D000455:Medicago sativa / Q000378:metabolism; D010944:Plants / Q000378:metabolism*; D013431:Sulfates / Q000378:metabolism; D013447:Sulfites / Q000494:pharmacology; D013865:Thioglycosides / Q000096:biosynthesis*
D000085:Acetates; D004075:Diglycerides; D005989:Glycerides; D006017:Glycolipids; D013431:Sulfates; D013447:Sulfites; D013865:Thioglycosides; D002701:Chloramphenicol; D003544:Cysteic Acid