Journal of Lipid Research, Vol 26, 1120-1125, Copyright © 1985 by Lipid Research, Inc.
C15, C20, and C25 isoprenoid homologues in glycerol diether phospholipids of methanogenic archaebacteria
CA Mancuso, G Odham, G Westerdahl, JN Reeve and DC White
The glycerol diether phospholipids of 25 monocultures of methanogenic
bacteria were isolated and degraded with hydriodic acid. The resulting
alkyl iodides were converted to acetate esters and alcohols which were
examined using capillary gas-liquid chromatography. The presence of C20
phytanol was observed in accordance with previous studies. Soft
fragmentation by chemical ionization mass spectrometry combined with
selected ion monitoring enabled the detection, for the first time, of C15
and C25 isoprenologues as components of the diether phospholipids in
several strains.