In vitro turnover of oleate and arachidonate in lipids of Discopyge tschudii electrocyte membranes

Hugo R. Arias, Francisco J. Barrantes

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

1. 1. The incorporation and distribution of two unsaturated fatty acids, [3H]arachidonate and [3H]oleate, into lipids of living electrocytes was studied in Discopyge tschudii (Torpedinidae) in vitro. 2. 2. Thirty and 40% of the label was found in phospholipids and neutral lipids respectively, triacylglycerols accumulating the greater part. In terms of lipid mass, polyphosphoinositides displayed the highest turnover of both fatty acids. In general, oleate turnover was faster than that of arachidonate. 3. 3. Fatty acid turnover appears to be an active process in the electrocyte, deacylation-reacylation processes dominating acyl group metabolism. Enzymes catalysing these reactions may play important functions in the control of physical properties in excitable membranes.

Original languageEnglish
Pages (from-to)623-627
Number of pages5
JournalComparative Biochemistry and Physiology -- Part B: Biochemistry and
Volume86
Issue number3
DOIs
StatePublished - 1 Jan 1987
Externally publishedYes

Fingerprint Dive into the research topics of 'In vitro turnover of oleate and arachidonate in lipids of Discopyge tschudii electrocyte membranes'. Together they form a unique fingerprint.

  • Cite this