Growth and cellular fatty-acid composition of a sulphate-reducing bacterium, Desulfatibacillum aliphaticivorans strain CV2803T, grown on n-alkenes.
The anaerobic degradation of n-alkenes by a sulphate-reducing bacterium Desulfatibacillum aliphaticivorans strain CV2803T was investigated. Results suggest that enzymes required for alkene degradation are inducible. Moreover, total cellular fatty acids of strain CV2803T were predominantly C-odd when the strain was grown on C-odd substrates and C-even when grown on C-even substrates. In addition to classical bacterial fatty acids, unusual 4-Me-17:1delta11 and 4-Me-18:1delta11 fatty acids and their saturated homologues were detected when strain CV2803T was grown on 1-pentadecene and 1-hexadecene, respectively. These methyl-branched monounsaturated fatty acids could constitute specific metabolites of n-alkene degradation by sulphate-reducing bacteria.
Cravo-Laureau
Cristiana
C
Laboratoire de microbiologie, IMEP CNRS UMR 6116, université d'Aix-Marseille-3, faculté des sciences et techniques de Saint-Jérôme, case 452, 13397 Marseille cedex 20, France. c.cravo-laureau@univ.u-3mrs.fr
Hirschler-Réa
Agnès
A
Matheron
Robert
R
Grossi
Vincent
V
D000475:Alkenes; D001421:Bacteria, Anaerobic / Q000254:growth & development* / Q000378:metabolism*; D005227:Fatty Acids / Q000378:metabolism*; D010084:Oxidation-Reduction; D013431:Sulfates / Q000378:metabolism*
D000475:Alkenes; D005227:Fatty Acids; D013431:Sulfates