The Source of Thermophilic Bacteria in Lake Baikal Cold Sediments—Coastal Hydrotherms or Deep Fluids?

— The sources of thermophilic bacteria revealed in cold Lake Baikal sediments are considered. Comparative analysis of the taxonomic position of thermophilic microorganisms from four terrestrial hot springs at Lake Baikal coast and from the bottom sediments associated with hydrocarbon discharge was c...

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Published inMicrobiology (New York) Vol. 93; no. 3; pp. 338 - 343
Main Authors Pavlova, O. N., Chernitsyna, S. M., Bukin, S. V., Lomakina, A. V., Shubenkova, O. V., Smirnova, D. K., Zemskaya, T. I.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.06.2024
Springer Nature B.V
Subjects
Biomedical and Life Sciences
Comparative analysis
Hot springs
Life Sciences
Medical Microbiology
Microbiology
Sediments
Short Communications
Taxonomy
Thermophilic bacteria
Thermophilic microorganisms
Zmeiny
Lake Baikal
thermophiles
Davshinsky
hot springs
microbial diversity
Kotel’nikovsky
Khakussky
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Summary:— The sources of thermophilic bacteria revealed in cold Lake Baikal sediments are considered. Comparative analysis of the taxonomic position of thermophilic microorganisms from four terrestrial hot springs at Lake Baikal coast and from the bottom sediments associated with hydrocarbon discharge was carried out. The sequences of thermophilic microorganisms with the same taxonomic position were revealed both in the hot springs and bottom sediments. Some microbial species occurred only in the hydrotherm samples or only in those from the sediments. Gas-saturated fluids from the hydrocarbon generation zone at the depth of 4‒6 km are the most probable source of thermophilic microorganisms in the bottom sediments.
ISSN:0026-2617
1608-3237
DOI:10.1134/S0026261723604189