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Ether‐containing lipids of the slime mold, Physarum polycephalum : II. Rates of biosynthesis
Author(s) -
Poulos Alfred,
Thompson Guy A.
Publication year - 1971
Publication title -
lipids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.601
H-Index - 120
eISSN - 1558-9307
pISSN - 0024-4201
DOI - 10.1007/bf02531231
Subject(s) - physarum polycephalum , slime mold , plasmalogen , chemistry , biosynthesis , ether , alkyl , glycerol , side chain , biochemistry , alcohol , organic chemistry , palmitic acid , phospholipid , enzyme , fatty acid , membrane , polymer
The in vivo incorporation of 1‐ 14 C‐palmitic acid and 1‐0‐[8,9‐ 3 H] hexadecyl glycerol (chimyl alcohol) by plasmodia of the slime mold, Physarum polycephalum has been studied. 14 C‐palmitate rapidly enters ester and alkyl ether side chains of phospholipids, but alk‐1‐enyl side chains are labeled more slowly. 3 H‐chimyl alcohol is incorporated into the alkyl ether phospholipids, which appear to undergo enzymatic desaturation, producing plasmalogens. The feasibility of Physarum as the source of a cell‐free enzyme system for plasmalogen synthesis is discussed.