Authors: Verena Rösch Karin Denger David Schleheck Theo H M Smits Alasdair M Cook
Publish Date: 2008/03/05
Volume: 190, Issue: 1, Pages: 11-18
Abstract
Aerobic enrichment cultures with taurocholate or alkanesulfonates as sole sources of carbon and energy for growth were successful and yielded nine bacterial isolates all of which utilized taurocholate Growth was complex and involved not only many usually transient excretion products but also sorption of taurocholate and cholate to cells Three metabolic strategies to dissimilate taurocholate were elucidated all of which involved bile salt hydrolase cleaving taurocholate to cholate and taurine Comamonas testosteroni KF1 utilized both the taurine and the cholate moieties for growth Pseudomonas spp eg strain TACK3 and Rhodococcus equi TACA1 grew with the cholate moiety and released taurine quantitatively Delftia acidovorans SPH1 utilized the taurine moiety and released cholateWe are grateful to A Haas University of Bonn who kindly made available PCRprimers for the vapA gene plasmid DNA with the vapA gene and for advice on R equi We thank K Hollemeyer University of the Saarland for MALDITOFMS analysis of taurocholate Janosch Klebensberger University of Konstanz kindly discussed the effects of biofilm formation on growth kinetics The US DOE Joint Genome Institute sequenced the genomes of C testosteroni KF1 and D acidovorans SPH1 for S Kjelleberg and DS in its programme “DOE 2006 Microbes” The project in Konstanz was supported by funds from the University of Konstanz
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