Glacier mice as a temporary sink for fallout radionuclides and heavy metals on the Norwegian glacier Austerdalsbreen

Kołtonik, Katarzyna; Zawierucha, Krzysztof; Wojciechowski, Kamil; Mróz, Tomasz; Niedzielski, Przemysław; Souza-Kasprzyk, Juliana; Wierzgoń, Mariusz; Olabode, Kayode; Cwanek, Anna; Sala, Dariusz; Yde, Jacob Clement; Wachniew, Przemysław; Łokas, Edyta

doi:10.1016/j.scitotenv.2024.175109

Science of The Total Environment

2024

DOI: 10.1016/j.scitotenv.2024.175109

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Glacier mice as a temporary sink for fallout radionuclides and heavy metals on the Norwegian glacier Austerdalsbreen

Katarzyna Kołtonik,

Krzysztof Zawierucha,

Kamil Wojciechowski

et al.

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2024

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Cited by 3 publications

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Diversity and Abundance of Antimicrobial Resistance Determinants in Culturable Bacteria of Glacier Mice and Proglacial Lake Ecosystems at Austerdalsbreen, Norway

Makowska-Zawierucha,

Woszak,

Yde

et al. 2024

Int J Environ Res

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Antimicrobial resistance (AMR) impacts environmental processes and poses a threat to public health even in remote glacierized areas. In this study, we aimed to (i) investigate the diversity of antibiotic resistance genes (ARGs) and integrons in culturable bacteria, and to (ii) present a snapshot of microbial resistance on a glacier and its adjacent habitats in Scandinavia. We collected samples from glacier mice, spheroidal-to-ovoidal shaped bryophyte on the glacier surface, and from a proglacial lake at Austerdalsbreen in central Norway. We found variable bacterial counts ranging from 1.6 × 103 CFU/ml in water to 4.8 × 103 CFU/ml in glacier mice, with coliforms and aminoglycoside-resistant coliforms prevalent in microalgae bloom in the proglacial lake. Class 1 integrons were more frequently observed in glaciolacustrine sediment. Integron variable regions encompassing cassettes conferring resistance to macrolides and aminoglycosides in intI1-positive strains isolated from glacier mice and associated with multidrug resistance in aminoglycoside-resistant coliforms from microalgae bloom were found. The culturable bacteria carrying variable regions of integrons were identified as Pseudomonas sp., Paenibacillus sp., Escherichia coli, Klebsiella sp., Enterobacter sp., and Citrobacter sp. Additionally, we identified other ARGs, including sul1, aadA1, ampC, blaTEM, and blaOXA, indicating the presence of multiple mechanisms of antibiotic resistance. Our findings contribute to understanding of the distribution and dissemination of antibiotic resistance via glacial bryophytes to downstream ecosystem of proglacial lake in Norway.

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Diversity and Abundance of Antimicrobial Resistance Determinants in Culturable Bacteria of Glacier Mice and Proglacial Lake Ecosystems at Austerdalsbreen, Norway

Makowska-Zawierucha,

Woszak,

Yde

et al. 2024

Int J Environ Res

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Variability of fallout radionuclide accumulation and possible contamination sources of a peripheral glacier in southeast Greenland

Wojciechowski,

Yde,

Cwanek

et al. 2024

Chemosphere

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Radiological and elemental composition of cryoconite and glacier mice from Vatnajökull, Iceland

Smith,

Clason,

Millward

et al. 2024

Science of The Total Environment

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Glacier mice as a temporary sink for fallout radionuclides and heavy metals on the Norwegian glacier Austerdalsbreen

Cited by 3 publications

References 62 publications

Diversity and Abundance of Antimicrobial Resistance Determinants in Culturable Bacteria of Glacier Mice and Proglacial Lake Ecosystems at Austerdalsbreen, Norway

Diversity and Abundance of Antimicrobial Resistance Determinants in Culturable Bacteria of Glacier Mice and Proglacial Lake Ecosystems at Austerdalsbreen, Norway

Variability of fallout radionuclide accumulation and possible contamination sources of a peripheral glacier in southeast Greenland

Radiological and elemental composition of cryoconite and glacier mice from Vatnajökull, Iceland

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