Lipid composition and taxonomy of [Pseudomonas] echinoides: transfer to the genus Sphingomonas

Microbiology. 2000 Nov;146 ( Pt 11):3007-3012. doi: 10.1099/00221287-146-11-3007.


Lipid components of [Pseudomonas] echinoides NCIMB 9420 have been studied as an aid to taxonomic relocation of the organism. Non-polar lipids include the carotenoid nostoxanthin and the ubiquinone Q-10. The major fatty acids are cis-vaccenic acid [18:1(11c)], hexadecanoic acid (16:0) and 2-hydroxy-tetradecanoic acid (2-OH-14:0), but 11-methyloctadec-11-enoic acid[11-Me-18:1(11)] is a significant minor component. The preponderant phospholipids are phosphatidylethanolamine and phosphatidylglycerol; minor lipids include bis(phosphatidyl)glycerol and an unidentified aminophospholipid. Several glycolipids are present, the major one being a glucuronosylceramide derived from sphinganine with amide-bound 2-OH-14:0. The lipid profile supports a proposal to reclassify the organism as Sphingomonas echinoides.

Publication types

  • Comparative Study

MeSH terms

  • Chromatography, Thin Layer
  • Classification
  • Lipids / analysis*
  • Lipids / chemistry
  • Magnetic Resonance Spectroscopy
  • Pseudomonas / chemistry*
  • Pseudomonas / classification*
  • Species Specificity
  • Sphingomonas / chemistry*
  • Sphingomonas / classification*


  • Lipids