title: Lipid composition and taxonomy of [Pseudomonas] echinoides: transfer to the genus Sphingomonas.
abstract: 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.
authors.affiliation: Department of Chemistry, University of Hull, Hull HU6 7RX, UK1.
authors.forename: Nicola J
authors.initials: NJ
authors.lastname: Rowe
authors.affiliation: Department of Chemistry, University of Hull, Hull HU6 7RX, UK1.
authors.forename: Jennifer
authors.initials: J
authors.lastname: Tunstall
authors.affiliation: Department of Chemistry, University of Hull, Hull HU6 7RX, UK1.
authors.forename: Lesley
authors.initials: L
authors.lastname: Galbraith
authors.affiliation: Department of Chemistry, University of Hull, Hull HU6 7RX, UK1.
authors.forename: Stephen G
authors.initials: SG
authors.lastname: Wilkinson
mesh_terms: D002855:Chromatography, Thin Layer; D002965:Classification; D008055:Lipids / Q000032:analysis* / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D011549:Pseudomonas / Q000737:chemistry* / Q000145:classification*; D013045:Species Specificity; D020578:Sphingomonas / Q000737:chemistry* / Q000145:classification*
chemical_list: D008055:Lipids