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Multi-habitat distribution and coalescence of resistomes at the watershed scale based on metagenomics.
- Source :
-
Journal of hazardous materials [J Hazard Mater] 2024 Sep 15; Vol. 477, pp. 135349. Date of Electronic Publication: 2024 Jul 26. - Publication Year :
- 2024
-
Abstract
- The characteristics of the resistome distribution in rivers have been extensively studied. However, the distribution patterns of resistomes in multiple habitats and contributions of upstream habitats to the resistome profile in water bodies remains unclear. The current study explored the distribution and coalescence of antibiotic resistance genes (ARGs), metal resistance genes (MRGs), and mobile genetic elements (MGEs) in four habitats (including water bodies, sediments, biofilms, and riparian soils) within the Shichuan River watershed. The results revealed significant variations in the abundances and diversity of resistomes across the four habitats and two seasons. Assembly processes of resistomes were predominated by stochastic processes in summer but deterministic processes in winter. The main source of the resistome in summer water bodies was the movement of genes from upstream water bodies. However, the main sources of resistome in downstream water bodies in winter were the movement of resistomes in upstream sediments and the input of external pollution. The physicochemical properties of winter water bodies significantly influenced the movement of the resistomes across habitats. The current study elucidated the multi-habitat distribution pattern and migration mechanism of the resistome in the river system, providing new insights for effectively monitoring and controlling bacterial resistance.<br />Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.<br /> (Copyright © 2024 Elsevier B.V. All rights reserved.)
- Subjects :
- Seasons
Geologic Sediments microbiology
China
Genes, Bacterial
Drug Resistance, Microbial genetics
Environmental Monitoring methods
Bacteria genetics
Bacteria classification
Bacteria metabolism
Drug Resistance, Bacterial genetics
Water Microbiology
Biofilms
Rivers microbiology
Rivers chemistry
Metagenomics
Ecosystem
Subjects
Details
- Language :
- English
- ISSN :
- 1873-3336
- Volume :
- 477
- Database :
- MEDLINE
- Journal :
- Journal of hazardous materials
- Publication Type :
- Academic Journal
- Accession number :
- 39068887
- Full Text :
- https://doi.org/10.1016/j.jhazmat.2024.135349