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- Title
Low-Abundance Sulfidogenic Bacteria Carry out Intensive Sulfate Reduction in Terrestrial Hydrotherms of the Barguzin Valley.
- Authors
Rusanov, I. I.; Kadnikov, V. V.; Lukina, A. P.; Danilova, E. V.; Sokolyanskaya, L. O.; Ravin, N. V.; Karnachuk, O. V.
- Abstract
Preliminary microbiological investigation of the Barguzin Valley terrestrial hydrotherms did not elucidate the composition of the community of sulfate-reducing prokaryotes (SRP) responsible for high sulfide concentrations in the Kuchiger and Umkhei springs. Measurement of sulfate reduction rate (SRR) with labeled sulfate in the samples collected together with those for determination of community composition by 16S rRNA gene profiling revealed that, while not numerous, the SRP consisting of Desulfobacterota and Thermodesulfovibrio was responsible for a highly active process. SRR in the sediments of the Umkhei and Kuchiger springs was up to 12.7 ± 0.2 and 2.05 ± 0.08 mg S dm–3 day–1, respectively.
- Subjects
SULFATES; BACTERIA; RIBOSOMAL RNA; PROKARYOTES; SEDIMENTS
- Publication
Microbiology (00262617), 2023, Vol 92, pS29
- ISSN
0026-2617
- Publication type
Article
- DOI
10.1134/S0026261723603603