Thiosulfate oxidation by nonsulfur purple bacteria

Keppen, O.I.; Pedan, L.V.; Rodova, N.A.

Mikrobiologiia 49(5): 682-686

1980


ISSN/ISBN: 0026-3656
PMID: 6777642
Document Number: 159889
The capability to oxidize thiosulfate was studied in 11 cultures of purple bacteria belonging to Rhodomicrobium vannielii, Rhodopseudmonas viridis, Rh. sphaeroides, Rh. capsulata, and Rhodospirillum rubrum. All the bacteria oxidized thiosulfate under aerobic conditions in the dark. The strains 2R, 8259, A1, A2 and D1 of Rh. sphaeroides oxidized thiosulfate under anaerobic conditions in the light, and the process was coupled with carbon dioxide fixation. All the strains contained thiosulfate reductase, and the majority of them possessed also the activity of thiosulfate oxidase and sulfite oxidase.

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