Neutral Lipids, their fatty acids, and the sterols of the marine ciliated protozoon, Parauronema acutum

Donggeun Sul, Edna S. Kaneshiro, Koka Jayasimhulu, Joseph A. Erwin

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The neutral lipids and their fatty acids and the sterol fractions of the marine ciliated protozoon, Parauronema acutum, were characterized. The neutral lipids consisted of triglycerides (30%), sterols (29%), free fatty acids (24%), steryl esters (9%), and diglycerides (8%) and small amounts of fatty alcohols. The fatty acid profiles of these lipids were very similar although quantitative differences were detected. Saturated fatty acids, primarily 14:0, 16:0, and 18:0 constituted 20-30% of the total. Unsaturated fatty acids containing one to three double bonds, primarily 18:1(9), 18:2 (9,12), 18:3 (9, 12, 15) and 20:3 (11, 14, 17), constituted 35-50% of the total. Highly unsaturated fatty acids, 18:4 (6, 9, 12, 15), 20:5 (5, 8, 11, 14, 17) and 22:6 (4, 7, 10, 16, 19), constituted 16-25% of the total. The fatty alcohols consisted of 14:0 (2%), 16:0 (66%), 18:0 (3%), 20:0 (8%), and 22:0 (21%). The sterols of Parauronema acutum consisted of cholesterol (53%), campesterol (32%), desmosterol (7%), and β-sitosterol (8%).

Original languageEnglish
Pages (from-to)373-378
Number of pages6
JournalJournal of Eukaryotic Microbiology
Volume47
Issue number4
DOIs
Publication statusPublished - 2000

Keywords

  • Campesterol
  • Cholesterol
  • Desmosterol
  • Diglyceride
  • Fatty alcohol
  • Marine ciliate
  • Triglyceride
  • β-sitosterol

ASJC Scopus subject areas

  • Microbiology

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