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Growth of thermophilic obligately autotrophic hydrogen‐oxidizing bacteria on thiosulfate
Author(s) -
Alfredsson G. A.,
Ingason A.,
Kristjansson J. K.
Publication year - 1986
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1111/j.1472-765x.1986.tb01507.x
Subject(s) - thermophile , library science , biology , bacteria , computer science , genetics
Thermophilic obligately autotrophic H 2 ‐oxidizing bacteria from Icelandic hot springs were tested for growth on thiosulfate. Ten strains were tested and all grew on thiosulfate but not on sulfite or sulfur. The product of thiosulfate oxidation was sulfate. The growth rate on thiosulfate was slower (μ=0.12 h ‐1 ) than on H 2 (μ=0.34 h ‐1 ). Washed cells which had been grown on thiosulfate could oxidize thiosulfate rapidly but H 2 ‐grown cells oxidized thiosulfate much more slowly and with about a 3 h lag time. The bacteria would not grow on agar medium under H 2 but grew on agar medium containing thiosulfate.