Riverine pollution influences the intraspecific variation in the gut microbiome of an invasive fish, Cyprinus carpio (Linn., 1758).

Autor: Bharti M; Fish Molecular Biology Laboratory, Department of Zoology, University of Delhi, North Campus, Delhi, 110007 India., Nagar S; Fish Molecular Biology Laboratory, Department of Zoology, University of Delhi, North Campus, Delhi, 110007 India.; Department of Zoology, Deshbandhu College, Kalkaji, New Delhi, 110019 India., Negi RK; Fish Molecular Biology Laboratory, Department of Zoology, University of Delhi, North Campus, Delhi, 110007 India.
Jazyk: angličtina
Zdroj: 3 Biotech [3 Biotech] 2023 Oct; Vol. 13 (10), pp. 320. Date of Electronic Publication: 2023 Aug 28.
DOI: 10.1007/s13205-023-03747-0
Abstrakt: Humans are significantly impacting riverine systems worldwide, prompting us to investigate the effects of water pollution on the gut microbiome of Cyprinus carpio (common carp). Using 16S rRNA gene sequencing, we compared the gut microbiomes of common carp from two sites along river Yamuna with different pollution levels. Water pollution significantly altered the fish gut microbiome structure and microbial composition. Proteobacteria dominated in both sampling sites, while Bacteroidota prevailed in polluted water samples, indicating sewage and fecal contamination. Less polluted samples exhibited Verrucomicrobiae and Planctomycetes , negatively correlated with pollution levels. The polluted site had higher prevalence of potentially pathogenic and heavy metal-resistant bacteria, as well as microbial communities associated with wastewater treatment systems. Functional prediction highlighted the significant role of the gut microbiome in digestion and metabolism, with active enzymes for breaking down various organic substances. Biosynthetic pathways for leucine, valine, and isoleucine were present in both sites, known to be involved fish immunity. The host maintained a stable and diverse bacterial consortium, while microbial diversity became more specialized due to human activities, adapting to anthropogenic stress and selection pressures.
Supplementary Information: The online version contains supplementary material available at 10.1007/s13205-023-03747-0.
Competing Interests: Conflict of interestThe authors declare no conflict of interest.
(© King Abdulaziz City for Science and Technology 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.)
Databáze: MEDLINE
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