title: Taxonomic diversity and functional potential of microbial communities in salt lakes Gudzhirganskoe and Nukhe-Nur (Barguzin depression, Baikal Rift Zone)
metadata.name: dc.contributor.author
metadata.value: Lavrentyeva, Elena
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Banzaraktsaeva, Tuyana
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Dambaev, Vyacheslav
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Buyantueva, Lyubov’
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Valova, Elena
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Ivanov, Vladimir
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Plotnikov, Andrey
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2023-08-24T11:26:35Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2023-08-24T11:26:35Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2023-06
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Lavrentyeva, E., Banzaraktsaeva, T., Dambaev, V., Buyantueva, L., Valova, E., Ivanov, V., and Plotnikov, A. 2023. Taxonomic diversity and functional potential of microbial communities in salt lakes Gudzhirganskoe and Nukhe-Nur (Barguzin depression, Baikal Rift Zone). Bio. Comm. 68(2): 86–96. https://doi.org/10.21638/spbu03.2023.203
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: https://doi.org/10.21638/spbu03.2023.203
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/43875
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: On the territory of the Barguzin depression (Baikal Rift Zone) there are salt lakes,
  which are unique natural formations formed in exceptional natural conditions
  and experiencing extreme shifts in seasonal environmental conditions. This paper
  presents the results of the study of the microbial communities in the sulfate
  Lake Gudzhirganskoe and the soda Lake Nukhe-Nur in winter and summer seasons:
  from the assessment of the taxonomic composition to potential metabolic
  pathways. For the first time, based on the 16S rRNA gene sequencing data, the
  diversity of the microbial community of bottom sediments in summer and winter
  was studied. Environmental conditions such as pH, temperature and mineralization
  mainly determined the microbial community composition and led to noticeable
  shifts in the composition of the community at the level of families and genera.
  The change of the “summer” obligate and moderately alkalphilic and halophilic
  community to the “winter” alkali-, halotolerant/halophilic microbial community
  is observed in the winter period in Lake Gudzhirganskoe. In Lake Nukhe-Nur,
  a change from mesophilic-thermophilic community in summer to mesophilicpsychrophilic
  microbial community in winter was revealed. The totality of the obtained
  results gives an idea about the main trends in the seasonal dynamics of
  extremophilic microbial communities in the studied lakes in response to fluctuations
  in environmental parameters. The prediction of the metabolic pathways of
  prokaryotic communities using the Tax4Fun program made it possible to reveal
  similarities and differences in the metabolic potential of the microbial communities
  of the studied lakes. Potential functional genes have been found for all stages
  of the C, N and S cycles, with the exception of nitrification and aerobic CH4 oxidation.
  Only small qualitative and quantitative variations in the relative abundance
  of predicted functional genes were found between the microbial communities of
  the studied lakes. We predicted metabolic pathways that play an important role
  in the adaptation of microorganisms to changing environmental conditions. In
  general, it has been shown that there is a change in the dominant taxa at the level
  of families and genera in the microbial community in the summer and winter
  seasons, however, the predicted functional potential of microbial communities
  differed slightly by season and between the studied lakes.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: This work was financially
  supported by grant of the Federal State
  Budget Educational Institution of Higher
  Education BGU No. 22-03-0502 and the
  state assignment of the IGEB SB RAS
  No. 121030100229-1.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: en
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Biological Сommunications;Volume 68; Issue 2
metadata.lang: -
metadata.name: dc.subject
metadata.value: extremophilic microbial communities
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: taxonomic diversity
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: seasonal dynamics
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: functional potential prediction
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: C, N and S cycles
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: salt lakes
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Baikal Rift Zone
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Taxonomic diversity and functional potential of microbial communities in salt lakes Gudzhirganskoe and Nukhe-Nur (Barguzin depression, Baikal Rift Zone)
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 03.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/43875/1/03.pdf
resources.format: Adobe PDF
resources.size: 4,3 MB