Diversity and Activity of Sulfate-Reducing Prokaryotes in Kamchatka Hot Springs.

ABSTRACT: Microbial communities of the Kamchatka Peninsula terrestrial hot springs were studied using radioisotopic and cultural approaches, as well as by the amplification and sequencing of dsrB and 16S rRNA genes fragments. Radioisotopic experiments with ³⁵S-labeled sulfate showed that microbial communities of the Kamchatka hot springs are actively reducing sulfate. Both the cultivation experiments and the results of dsrB and 16S rRNA genes fragments analyses indicated the presence of microorganisms participating in the reductive part of the sulfur cycle. It was found that sulfate-reducing prokaryotes (SRP) belonging to Desulfobacterota, Nitrospirota and Firmicutes phyla inhabited neutral and slightly acidic hot springs, while bacteria of phylum The

SUBMITTER: Frolov EN 

PROVIDER: S-EPMC8539903 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature