Polar lipid fatty acids, LPS-hydroxy fatty acids, and respiratory quinones of three Geobacter strains, and variation with electron acceptor.
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.
Microbial Insights, Inc., 2340 Stock Creek Blvd., Rockford, TN, USA. davidhedrick@earthlink.net
D B
DB
Hedrick
A D
AD
Peacock
D R
DR
Lovley
T L
TL
Woodard
K P
KP
Nevin
P E
PE
Long
D C
DC
White
D003470:Culture Media; D004583:Electrons; D004783:Environmental Microbiology; D005227:Fatty Acids / Q000032:analysis* / Q000737:chemistry; D005296:Ferrous Compounds / Q000378:metabolism; D045302:Geobacter / Q000737:chemistry* / Q000145:classification* / Q000254:growth & development / Q000378:metabolism; D008055:Lipids / Q000032:analysis* / Q000737:chemistry; D008070:Lipopolysaccharides / Q000737:chemistry; D009566:Nitrates / Q000378:metabolism; D011809:Quinones / Q000032:analysis* / Q000737:chemistry; D024482:Vitamin K 2 / Q000032:analysis
D003470:Culture Media; D005227:Fatty Acids; D005296:Ferrous Compounds; D008055:Lipids; D008070:Lipopolysaccharides; D009566:Nitrates; D011809:Quinones; D024482:Vitamin K 2