Enrichment of potential pathogens in marine microbiomes with different degrees of anthropogenic activity

Anthropogenic activities in coastal marine ecosystems can lead to an increase in the abundance of potentially harmful microorganisms in the marine environment. To understand anthropogenic impacts on the marine microbiome, we first used publicly available microbial phylogenetic and functional data to...

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Bibliographic Details
Published in:Environmental pollution (1987) 2021-01, Vol.268 (Pt A), p.115757-115757, Article 115757
Main Authors: Jurelevicius, Diogo, Cotta, Simone R., Montezzi, Lara F., Dias, Armando C.F., Mason, Olivia U., Picão, Renata C., Jansson, Janet K., Seldin, Lucy
Format: Article
Language:English
Subjects:
Anthropogenic impacts
Antimicrobial resistance genes
Aquatic Organisms
Bacteria - genetics
Coastal marine microbiome
Drug Resistance, Microbial
Humans
Marine pathogens
Microbiota
Phylogeny
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Summary:Anthropogenic activities in coastal marine ecosystems can lead to an increase in the abundance of potentially harmful microorganisms in the marine environment. To understand anthropogenic impacts on the marine microbiome, we first used publicly available microbial phylogenetic and functional data to establish a dataset of bacterial genera potentially related to pathogens that cause diseases (BGPRD) in marine organisms. Representatives of low-, medium- and highly impacted marine coastal environments were selected, and the abundance and composition of their microbial communities were determined by quantitative PCR and 16 S rRNA gene sequencing. In total, 72 BGPRD were cataloged, and 11, 36 and 37 BGPRD were found in low-, medium- and highly human-impacted ecosystems, respectively. The absolute abundance of BGPRD and the co-occurrence of antibiotic resistance genes (AGR) increased with the degree of anthropogenic perturbation in these ecosystems. Anthropogenically impacted coastal microbiomes were compositionally and functionally distinct from those of less impacted sites, presenting features that may contribute to adverse outcomes for marine macrobiota in the Anthropocene era. [Display omitted] •Potential pathogens in marine environments increase with anthropogenic activities.•Anthropogenically-impacted coastal microbiomes are different from less impacted microbiomes.•Antimicrobial resistance genes were enriched in the anthropogenic-impacted microbiota.
ISSN:0269-7491
1873-6424
DOI:10.1016/j.envpol.2020.115757