Toxicity of hydrogen sulfide toward sulfate-reducing bacteria Desulfovibrio piger Vib-7
Language English Country Germany Media print-electronic
Document type Journal Article
PubMed
30707247
DOI
10.1007/s00203-019-01625-z
PII: 10.1007/s00203-019-01625-z
Knihovny.cz E-resources
- Keywords
- Hydrogen sulfide, Sulfate-reducing bacteria, Toxicity, Ulcerative colitis,
- MeSH
- Acetates metabolism MeSH
- Desulfovibrio classification metabolism MeSH
- Lactic Acid metabolism MeSH
- Humans MeSH
- Microbial Sensitivity Tests MeSH
- Oxidation-Reduction MeSH
- Sulfates metabolism MeSH
- Intestines microbiology MeSH
- Gastrointestinal Microbiome physiology MeSH
- Hydrogen Sulfide metabolism toxicity MeSH
- Sulfides metabolism MeSH
- Hydrogen metabolism MeSH
- Animals MeSH
- Check Tag
- Humans MeSH
- Animals MeSH
- Publication type
- Journal Article MeSH
- Names of Substances
- Acetates MeSH
- Lactic Acid MeSH
- Sulfates MeSH
- Hydrogen Sulfide MeSH
- Sulfides MeSH
- Hydrogen MeSH
Sulfate-reducing bacteria (SRB) belonging to the intestinal microbiota are the main producers of hydrogen sulfide and their increasing amount due to the accumulation of this compound in the bowel are involved in the initiation and maintenance of inflammatory bowel disease. The purpose of this experiment is to study the relative toxicity of hydrogen sulfide and survival of Desulfovibrio piger Vib-7 through monitoring: sulfate reduction parameters (sulfate consumption, hydrogen sulfide production, lactate consumption and acetate production) and kinetic parameters of these processes. The research is highlighting the survival of intestinal SRB, D. piger Vib-7 under the influence of different hydrogen sulfide concentrations (1-7 mM). The highest toxicity of H2S was measured in the presence of concentrations higher than 6 mM, where growing was stopped, though metabolic activities were not 100% inhibited. These findings are confirmed by cross correlation and principal component analysis that clearly supported the above mentioned results. The kinetic parameters of bacterial growth and sulfate reduction were inhibited proportionally with increasing H2S concentration. The presence of 5 mM H2S resulted in two times longer lag phase and generation time was eight times longer. Maximum rate of growth and hydrogen production was stopped under 4 mM, emphasizing the H2S toxicity concentrations to be < 4 mM, even for sulfide producing bacteria such as Desulfovibrio. The results are confirming H2S concentrations toxicity toward Desulfovibrio, especially the study novelty should be emphasized where it was found that the exact H2S limits (> 4 mM) toward this bacterial strain inhabiting humans and animals intestine.
References provided by Crossref.org
Microscopic Methods for Identification of Sulfate-Reducing Bacteria from Various Habitats
Sulfate-Reducing Bacteria of the Oral Cavity and Their Relation with Periodontitis-Recent Advances
The Characterization of Enterococcus Genus: Resistance Mechanisms and Inflammatory Bowel Disease
Recent Advances in Metabolic Pathways of Sulfate Reduction in Intestinal Bacteria
ATP sulfurylase activity of sulfate-reducing bacteria from various ecotopes
Occurrence of Thermophilic Microorganisms in Different Full Scale Biogas Plants
