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A study on the biosynthesis of cis ‐9,10‐epoxyoctadecanoic acid
Author(s) -
Knoche H. W.
Publication year - 1968
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/bf02531735
Subject(s) - lipidology , biosynthesis , clinical chemistry , chemistry , biochemistry , enzyme
Preliminary studies show that red stem, rust‐infected wheat plants provide a means for investigating the biosynthesis of epoxy fatty acids. The incorporation of 1‐ 14 C‐acetate into cis ‐9,10‐epoxyoctadecanoic acid occurs at the stage of the infection when sporulation is proceeding, and at the same stage there is at least a fourfold increase in the synthesis of other fatty acids. The epoxy acid appears to be formed by the condensation of acetate units in a process that requires oxygen and is not stimulated appreciably by light. Labeled stearic and oleic acid are also incorporated into the epoxy acid without undergoing β‐oxidation. The rate of conversion of oleic acid is greater than stearic acid, thus indicating that oleic acid is an immediate precursor to 9,10‐epoxyoctadecanoic acid.