Impact of Anthropogenic Activities on Microbial Community Structure in Riverbed Sediments of East Kazakhstan

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dc.contributor.authorMuter, Olga
dc.contributor.authorGudrā, Dita
dc.contributor.authorDaumova, Gulzhan
dc.contributor.authorIdrisheva, Zhanat
dc.contributor.authorRakhymberdina, Marzhan
dc.contributor.authorTabors, Guntis
dc.contributor.authorDirnena, Baiba
dc.contributor.authorDobkeviča, Linda
dc.contributor.authorPetrova, Olga
dc.contributor.authorApshikur, Baitak
dc.contributor.authorLuņģe, Megija
dc.contributor.authorFridmanis, Dāvids
dc.contributor.authorDennisov, Igor
dc.contributor.authorBekishev, Yerkebulan
dc.contributor.authorKasparinskis, Raimonds
dc.contributor.authorMukulysova, Zarina
dc.contributor.authorPolezhayev, Stanislav
dc.date.accessioned2024-04-05T13:20:01Z
dc.date.available2024-04-05T13:20:01Z
dc.date.issued2024-01-24
dc.descriptionPublisher Copyright: © 2024 by the authors.
dc.description.abstractHeavy metal (HMe) pollution in regions with mining and metallurgy activities is known to be a serious environmental problem worldwide. Hydrological processes contribute to the dissemination of HMes (drainage, precipitation, flow rate). The aim of the present study is to investigate the microbial community structure in ten river sediments sampled in different regions of East Kazakhstan, which are contaminated with HMes. The overall degree of sediment contamination with HMes (Cr, Cu, Zn, Pb, and Cd) was assessed using the pollution index Zc, which ranged from 0.43 to 21.6, with the highest in Ridder City (Zc = 21.6) and Ust-Kamenogorsk City, 0.8 km below the dam of the hydroelectric power station (Zc = 19.6). The tested samples considerably differed in organic matter, total carbon, nitrogen, and phosphorus content, as well as in the abundance of HMe-related functional gene families and antibiotic resistance genes. Metagenomic analysis of benthic microorganisms showed the prevalence of Proteobacteria (88.84–97.61%) and Actinobacteria (1.21–5.98%) at the phylum level in all samples. At the class level, Actinobacteria (21.68–57.48%), Betaproteobacteria (19.38–41.17%), and Alphaproteobacteria (10.0–39.78%) were the most common among the classified reads. To the best of our knowledge, this is the first study on the metagenomic characteristics of benthic microbial communities exposed to chronic HMe pressure in different regions of East Kazakhstan.en
dc.description.statusPeer reviewed
dc.format.extent3799938
dc.identifier.citationMuter, O, Gudrā, D, Daumova, G, Idrisheva, Z, Rakhymberdina, M, Tabors, G, Dirnena, B, Dobkeviča, L, Petrova, O, Apshikur, B, Luņģe, M, Fridmanis, D, Dennisov, I, Bekishev, Y, Kasparinskis, R, Mukulysova, Z & Polezhayev, S 2024, 'Impact of Anthropogenic Activities on Microbial Community Structure in Riverbed Sediments of East Kazakhstan', Microorganisms, vol. 12, no. 2, 246. https://doi.org/10.3390/microorganisms12020246
dc.identifier.doi10.3390/microorganisms12020246
dc.identifier.issn2076-2607
dc.identifier.otherMendeley: df6d4551-5be7-3f6f-961f-72c00dbd9e28
dc.identifier.urihttps://dspace.rsu.lv/jspui/handle/123456789/15421
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85187280943&partnerID=8YFLogxK
dc.identifier.urlhttps://www.mendeley.com/catalogue/df6d4551-5be7-3f6f-961f-72c00dbd9e28/
dc.language.isoeng
dc.relation.ispartofMicroorganisms
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectbiodiversity
dc.subjectHeavy metals
dc.subjectmicrobial community structure
dc.subjectmulti-metal resistance
dc.subjectriver sediments
dc.subjectheavy metals
dc.subject1.6 Biological sciences
dc.subject1.7 Other natural sciences
dc.subject1.1. Scientific article indexed in Web of Science and/or Scopus database
dc.subjectMicrobiology (medical)
dc.subjectVirology
dc.subjectMicrobiology
dc.titleImpact of Anthropogenic Activities on Microbial Community Structure in Riverbed Sediments of East Kazakhstanen
dc.type/dk/atira/pure/researchoutput/researchoutputtypes/contributiontojournal/article

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