The Biosynthesis of Polyunsaturated Fatty Acids by Photosynthetic Tissue

Abstract
Phosphatidyl choline acts as a “carrier molecule” for oleic acid during its conversion into linoleic acid in the green alga Chlorella vulgaris. Chlorella contains 7 molecular species of phosphatidyl cholines, having from one to five double bonds per molecule. No one oleate‐containing species is involved in the desaturation of oleate into linoleate, but dioleoyl‐phosphatidyl choline may be quantitatively the most important “carrier molecule” in this reaction.

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