Utilisation of aminomethane sulfonate by Chromohalobacter marismortui VH1.
Chromohalobacter marismortui VH1 was screened for its ability to utilise organosulfonate compounds at a range of NaCl concentrations. Only aminomethane sulfonate, of seven sulfonates tested, was utilised. Length of lag phase during growth on aminomethane sulfonate, as either nitrogen and/or sulfur source, increased with increasing NaCl concentration. Cell yields increased linearly with increasing aminomethane sulfonate concentration up to 5 mM. Resting cells pregrown on aminomethane sulfonate as sole nitrogen source exhibited carbon-sulfur bond cleaving [0.123 nmol sulfate accumulated h(-1) (mg cells)(-1)] and sulfite-oxidising [0.185 nmol sulfate accumulated h(-1) (mg cells)(-1)] activities. C. marismortui VH1 is capable of sulfur-starvation deregulated metabolism of aminomethane sulfonate under high salt conditions.
Ternan
Nigel G
NG
Environmental Biotechnology Research Group, School of Biological and Environmental Sciences, University of Ulster, Cromore Road, Coleraine, Co. Londonderry BT52 1SA, UK. ng.ternan@ulst.ac.uk
McMullan
Geoffrey
G
D001673:Biodegradation, Environmental; D003470:Culture Media; D020563:Gammaproteobacteria / Q000254:growth & development / Q000378:metabolism*; D012965:Sodium Chloride / Q000378:metabolism; D013451:Sulfonic Acids / Q000378:metabolism*
D003470:Culture Media; D013451:Sulfonic Acids; D012965:Sodium Chloride; C045904:aminomethanesulfonic acid