Analysis of pH Dose-dependent Growth of Sulfate-reducing Bacteria.

ABSTRACT: Lower intraluminal colonic pH is an indication for the development of inflammatory bowel disease including active ulcerative colitis. Involvement of intestinal sulfate-reducing bacteria in decreasing bowel pH by the production of H₂S and acetate as well as their sensitivity has never been reported before. The study of the relative pH and survival of Desulfovibrio piger Vib-7 by monitoring sulfate reduction parameters was the aim of this work. Monitoring was done through the measurement of bacterial growth (biomass), dissimilatory sulfate reduction parameters: sulfate consumption, lactate oxidation, hydrogen sulfide and acetate production. According to our results, we observed that lower pH (<5) significantly inhibited D. piger Vib-7 growth. This inhibition was also

SUBMITTER: Kushkevych I 

PROVIDER: S-EPMC6371204 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature