Kinetics of sulfate and hydrogen uptake by the thermophilic sulfate-reducing bacteria Thermodesulfobacterium sp. strain JSP and Thermodesulfovibrio sp. strain R1Ha3
Article Abstract:
The half-saturation constants (Km), maximum uptake rates and threshold concentrations for sulfate and hydrogen were measured for two sulfate-reducing bacteria (SRB) strains in an incubation system without headspace. The SRB strains were obtained from microbial mat samples collected from a hot spring in Hveragerdi, Iceland. Strain JSP was isolated from a microbial mat at 75 degrees C while strain R1Ha3 was collected at 55 degrees C. Results indicate that the Km value for the thermophilic SRB strain is similar to constants described for mesophilic SRB isolated from low-sulfate environments.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1999
User Contributions:
Comment about this article or add new information about this topic:
Influence of pH and temperature on enumeration of cellulose- and hemicellulose-degrading thermophilic anaerobes in neutral and alkaline Icelandic hot springs
Article Abstract:
Chemical and physical factors that affect the growth of native organisms in laboratory culture media are examined by performing ecological studies on biomat samples from Icelandic hot springs. The abundance of xylan-degrading and cellulose-using thermophilic anaerobes as a function of temperature and pH in the hot spring environment was also determined. The most probable number technique is used for enumeration of bacteria in the samples, with media at many different temperatures (37 to 90 degrees centigrade) and two ph values (7 and 9).
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1993
User Contributions:
Comment about this article or add new information about this topic:
Interspecies electron transfer during propionate and butyrate degradation in mesophilic, granular sludge
Article Abstract:
A study of interspecies formate and hydrogen transfer during anaerobic oxidation of butyrate and propionate hydrogen, formate or hydrogen- and formate shows that electron transfer takes place through interspecies hydrogen transfer and interspecies formate transfer is not necessary for interspecies electron transfer during propionate and butyrate degradation. Oxidation of propionates and butyrate occurs if acetate and hydrogen are reduced at low concentrations.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1995
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Generation of a proton motive force by the anaerobic oxalate-degrading bacterium Oxalobacter formigenes. Routine procedures for isolation and identification of enterococci and fecal streptococci
- Abstracts: Signal transduction schemes of bacteria. Signal transduction in the mammalian cell during bacterial attachment and entry
- Abstracts: Cosuppression in Drosophila: gene splicing of Alcohol dehydrogenase by white-Adh transgenes is Polycomb dependent
- Abstracts: Production of sweat gland cholinergic differentiation factor depends on innervation. SA-1 antigen expression in small intensely fluorescent cells is associated with proliferation
- Abstracts: Acetate degradation at 70 degrees centigrade in upflow anaerobic sludge blanket reactors and temperature response of granules grown at 70 degrees centigrade