Open AccessGrowth of thermophilic, obligatorily chemolithoautotrophic hydrogen‐oxidizing bacteria related to Hydrogenobacter with thiosulfate and elemental sulfur as electron and energy source
Author(s) -
Bonjour Fabienne,
Aragno Michel
Publication year - 1986
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.1986.tb01490.x
Subject(s) - thiosulfate , sulfur , thermophile , bacteria , hydrogenase , oxidizing agent , chemistry , autotroph , energy source , biochemistry , biology , catalysis , organic chemistry , enzyme , coal , genetics
Strains related to Hydrogenobacter , a genus of thermophilic, obligatorily chemolithoautotrophic bacteria, were able to utilize elemental sulfur or thiosulfate, as well as molecular hydrogen, as sole electron and energy source. Extracellular elemental sulfur was produced as an intermediate during oxidation of thiosulfate. Growth with thiosulfate alone was strongly microaerophilic, whereas no hydrogenase activity was detected. Mixolithotrophic growth with both hydrogen and thiosulfate was faster than with hydrogen alone, and the cells harbored a hydrogenase activity comparable to that of cells grown under hydrogen without thiosulfate.