The membrane lipids of the marine ciliated protozoan Parauronema acutum

Dong Geun Sul, Joseph A. Erwin

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

The membrane lipid composition of the marine ciliated protozoan Parauronema acutum was characterized. Phospholipids of P. acurum comprised 75% of the total lipids and consisted of phosphatidyl ethanolamine (33%), phosphatidyl choline and its phosphono analog (24%), phosphatidyl inositol (12%), phosphatidyl serine (8R), an unidentified phosphonolipid (18%) and small amounts of sphingomyelin, phosphatidic acid and lysophospholipid. Neutral sphingolipids comprised 15% of the total ciliate lipids and consisted of two major glycosphingolipids and six minor glycosphingolipids. These contained two kinds of long chain bases, one of which was sphingosine and either glucose or galactose or mixtures of both. The fatty acids of the total lipids of P. acutum consisted primarily of palmitic acid (13%), oleic acid (6%), linoleic acid (25%), α-linolenic aid (12%) plus highly unsaturated fatty acids of the ω-3 family including all-cis 6,9,12,15-octatetraenoic acid (9%), all-cis 5,8,11,14,17-eicosapentaenoic acid (10%) and all-cis 4,7,10,13,16,19,22-docosa-hexaenoic acid (9%). Individual lipids had their own specific fatty acid patterns.

Original languageEnglish
Pages (from-to)162-171
Number of pages10
JournalBiochimica et Biophysica Acta - Lipids and Lipid Metabolism
Volume1345
Issue number2
DOIs
Publication statusPublished - 1997 Apr 1
Externally publishedYes

Fingerprint

Membrane Lipids
Lipids
Glycosphingolipids
Fatty Acids
Lysophospholipids
Phosphatidic Acids
Sphingolipids
Ethanolamine
Sphingosine
Acids
Eicosapentaenoic Acid
Sphingomyelins
Palmitic Acid
Phosphatidylserines
Linoleic Acid
Oleic Acid
Phosphatidylinositols
Phosphatidylcholines
Unsaturated Fatty Acids
Galactose

Keywords

  • ω-3 polyunsaturated fatty acid
  • Fatty acid
  • P. acutum
  • Phosphonolipid
  • Polar lipid
  • Sphingolipid

ASJC Scopus subject areas

  • Biochemistry
  • Biophysics
  • Endocrinology

Cite this

The membrane lipids of the marine ciliated protozoan Parauronema acutum. / Sul, Dong Geun; Erwin, Joseph A.

In: Biochimica et Biophysica Acta - Lipids and Lipid Metabolism, Vol. 1345, No. 2, 01.04.1997, p. 162-171.

Research output: Contribution to journalArticle

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