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- W3003313144 endingPage "137022" @default.
- W3003313144 startingPage "137022" @default.
- W3003313144 abstract "The prevalence of integrons and antibiotic resistance genes (ARGs) is a serious threat for public health in the new millennium. Although commonly detected in sites affected by strong anthropogenic pressure, in remote areas their occurrence, dissemination, and transfer to other ecosystems is poorly recognized. Remote sites are considered as a benchmark for human-induced contamination on Earth. For years glaciers were considered pristine, now they are regarded as reservoirs of contaminants, thus studies on contamination of glaciers, which may be released to other ecosystems, are highly needed. Therefore, in this study we evaluated the occurrence and frequency of clinically relevant ARGs and resistance integrons in the genomes of culturable bacteria and class 1 integron-integrase gene copy number in the metagenome of cryoconite, ice and supraglacial gravel collected on two Arctic (South-West Greenland and Svalbard) and two High Mountain (the Caucasus) glaciers. Altogether, 36 strains with intI1 integron-integrase gene were isolated. Presence of class 1 integron-integrase gene was also recorded in metagenomic DNA from all sampling localities. The mean values of relative abundance of intI1 gene varied among samples and ranged from 0.7% in cryoconite from Adishi Glacier (the Caucasus) to 16.3% in cryoconite from Greenland. Moreover, antibiotic-resistant strains were isolated from all regions. Genes conferring resistance to β-lactams (blaSHV, blaTEM, blaOXA, blaCMY), fluoroquinolones (qepA, qnrC), and chloramphenicol (cat, cmr) were detected in the genomes of bacterial isolates." @default.
- W3003313144 created "2020-02-07" @default.
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- W3003313144 date "2020-05-01" @default.
- W3003313144 modified "2023-10-17" @default.
- W3003313144 title "Occurrence of integrons and antibiotic resistance genes in cryoconite and ice of Svalbard, Greenland, and the Caucasus glaciers" @default.
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- W3003313144 doi "https://doi.org/10.1016/j.scitotenv.2020.137022" @default.
- W3003313144 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/32059297" @default.
- W3003313144 hasPublicationYear "2020" @default.
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