ArticleMicroorganisms2024
Impact of Anthropogenic Activities on Microbial Community Structure in Riverbed Sediments of East Kazakhstan.
Article in Microorganisms, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Microbial community structure across freshwater ecosystem types in a high-altitude region, Zhongar Alatau, Kazakhstan.World journal of microbiology & biotechnology · 2026Article
- Assessment of Heavy Metal Accumulation in Soils and Dominant Agricultural Crops in an Industrial Environment of Ridder, East Kazakhstan Region.Plants (Basel, Switzerland) · 2026Article
- Antibiotic resistance dissemination in soil ecosystems: deep understanding for effective management and global health protection.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2026Review
- Diversity and distribution of bacterial community vertically across ecological and trophic gradient within sediments of lake Bosten area.Scientific reports · 2026Article
- Genome-resolved metagenomics reveals co-selection of antibiotic and metal resistance in chronically polluted industrial soils.Frontiers in microbiology · 2026Article
Corrections and comments
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Authors and funding
17 authors.
Funding
Abstract
Heavy 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.
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