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Article
Polar Lipid Fatty Acids, LPS-Hydroxy Fatty Acids, and Respiratory Quinones of Three Geobacter Strains, and Variation with Electron Acceptor
Journal of Industrial Microbiology and Biotechnology (2009)
  • Derek Lovley, University of Massachusetts - Amherst
  • David B Hedrick
  • Aaron D Peacock
  • Trevor L Woodard
  • Kelly P Nevin
  • Philip E Long
  • David C White
Abstract

The polar lipid fatty acids, lipopolysaccharide hydroxy-fatty acids, and respiratory quinones of Geobacter metallireducens str. GS-15, Geobacter sulfurreducens str. PCA, and Geobacter bemidjiensis str. Bem are reported. Also, the lipids of G. metallireducens were compared when grown with Fe(3+) or nitrate as electron acceptors and G. sulfurreducens with Fe(3+) or fumarate. In all experiments, the most abundant polar lipid fatty acids were 14:0, i15:0, 16:1 omega 7c, 16:1 omega 5c, and 16:0; lipopolysaccharide hydroxy-fatty acids were dominated by 3oh16:0, 3oh14:0, 9oh16:0, and 10oh16:0; and menaquinone-8 was the most abundant respiratory quinone. Some variation in lipid profiles with strain were observed, but not with electron acceptor.

Keywords
  • Geobacter,
  • Polar lipid fatty acids,
  • Lipopolysaccharide fatty acids,
  • Respiratory quinines,
  • Lipid analysis
Disciplines
Publication Date
February, 2009
Publisher Statement
DOI: 10.1007/s10295-008-0486-7
Citation Information
Derek Lovley, David B Hedrick, Aaron D Peacock, Trevor L Woodard, et al.. "Polar Lipid Fatty Acids, LPS-Hydroxy Fatty Acids, and Respiratory Quinones of Three Geobacter Strains, and Variation with Electron Acceptor" Journal of Industrial Microbiology and Biotechnology Vol. 36 Iss. 2 (2009)
Available at: http://works.bepress.com/derek_lovley/67/