Prokaryotes diversity in the biotopes of salt alkaline lake Zun-Torey (Zabaikalsky krai, Russia)

The research is aimed at investigating the diversity of microbial community in the biotopes of salt alkaline Lake Zun-Torey, located in the south-eastern Transbaikalia. The study of the taxonomic structure of the biotopes has shown that at the domain level bacteria predominate up to 99 %, and the proportion of archaea is 1-4 %. Archaeal diversity is noted in both biotopes, but there are more archaea representatives in the bottom sediments - up to 4 %, as well as unclassified representatives of phyla - up to 7 %.The dominant phyla in both biotopes are Bacteroidota (30 % and 43 %), Actinobacteriota (31 % and 19 %), Proteobacteria (13 % and 15 %), Firmicutes (12 % and 17 %) in the bottom sediments and salt efflorescences respectively. In general, a high similarity has been revealed in the diversity of microbial communities and the distribution of dominant taxa in the biotopes of salt alkaline Lake Zun-Torey.