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.
Hedrick
D B
DB
Microbial Insights, Inc., 2340 Stock Creek Blvd., Rockford, TN, USA. davidhedrick@earthlink.net
Peacock
A D
AD
Lovley
D R
DR
Woodard
T L
TL
Nevin
K P
KP
Long
P E
PE
White
D C
DC
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