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Incorporation of choline-1,2-14C into molecular species of phosphatidylcholine by alfalfa leaflet tissue

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Lipids

Abstract

Alfalfa leaflet tissue incorporated choline-1,2-14C into at least 6 molecular speies of phosphatidylcholine. After 7 hr incubation the species containing palmitic and linoleic acids (16∶0–18∶2) and the species containing linolenic and linoleic acids (18∶3–18∶2) had the highest specific activities. After 24 hr incubation, the species containing palmitic and linolenic acids (16∶0–18∶3) and the species containing 2 linolenic acids (18∶3–18∶3) had the highest specific activities. The most likely interpretation of these data is that choline is accepted by diglycerides containing one linoleic acid residue and that this residue is then desaturated within the phosphatidylcholine molecule to linolenic acid.

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Authors and Affiliations

  1. Canada Department of Agriculature Research Station, 2560 Chemin Gomin, 10, Ste-Foy, Quebec, Canada

    C. Willemot & G. Verret

Authors
  1. C. Willemot
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  2. G. Verret
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Contribution No. 39, C.D.A. Research Station, Ste-Foy, Quebec.

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Willemot, C., Verret, G. Incorporation of choline-1,2-14C into molecular species of phosphatidylcholine by alfalfa leaflet tissue. Lipids 8, 588–591 (1973). https://doi.org/10.1007/BF02532716

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  • DOI: https://doi.org/10.1007/BF02532716

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