Impact of in situ solar irradiation on snow bacterial communities and functional potential
Abstract Polar regions are increasingly exposed to ultraviolet light due to ozone depletion. Snowpacks contain photochemically active particles that, when irradiated, can lead to the production and accumulation of reactive species that can induce oxidative stress on snow microorganisms. This could g...
Published in: | FEMS Microbiology Ecology |
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Oxford University Press (OUP)
2023
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Online Access: | http://dx.doi.org/10.1093/femsec/fiad042 https://academic.oup.com/femsec/advance-article-pdf/doi/10.1093/femsec/fiad042/50020519/fiad042.pdf https://academic.oup.com/femsec/article-pdf/99/6/fiad042/50600115/fiad042.pdf |
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croxfordunivpr:10.1093/femsec/fiad042 2024-04-28T08:34:23+00:00 Impact of in situ solar irradiation on snow bacterial communities and functional potential Sanchez-Cid, Concepcion Keuschnig, Christoph Vogel, Timothy M Larose, Catherine IPEV 2023 http://dx.doi.org/10.1093/femsec/fiad042 https://academic.oup.com/femsec/advance-article-pdf/doi/10.1093/femsec/fiad042/50020519/fiad042.pdf https://academic.oup.com/femsec/article-pdf/99/6/fiad042/50600115/fiad042.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model FEMS Microbiology Ecology volume 99, issue 6 ISSN 1574-6941 Applied Microbiology and Biotechnology Ecology Microbiology journal-article 2023 croxfordunivpr https://doi.org/10.1093/femsec/fiad042 2024-04-02T08:03:24Z Abstract Polar regions are increasingly exposed to ultraviolet light due to ozone depletion. Snowpacks contain photochemically active particles that, when irradiated, can lead to the production and accumulation of reactive species that can induce oxidative stress on snow microorganisms. This could generate a selective pressure on snowpack bacteria. In this study, snow microcosms were buried in a snowpack at Ny-Ålesund (Svalbard), either exposed to solar irradiation or incubated in the dark for 10 days, and the bacterial response to solar irradiation was evaluated in situ using a metagenomics approach. Solar irradiation induced a significant decrease in bacterial abundance and richness. Genes involved in glutathione synthesis, sulphur metabolism, and multidrug efflux were significantly enriched in the light, whereas genes related to cell wall assembly and nutrient uptake were more abundant in the dark. This is the first study demonstrating the response of snow bacterial communities to solar irradiation in situ and providing insights into the mechanisms involved. Our research shows that polar sun irradiation is sufficiently intense to impose a selective pressure on snow bacteria and supports the concern that increased ultraviolet exposure due to anthropogenic activities and climatic change could drive critical changes in the structure and functioning of snow bacterial communities. Article in Journal/Newspaper Ny Ålesund Ny-Ålesund Svalbard Oxford University Press FEMS Microbiology Ecology 99 6 |
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Open Polar |
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Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Applied Microbiology and Biotechnology Ecology Microbiology |
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Applied Microbiology and Biotechnology Ecology Microbiology Sanchez-Cid, Concepcion Keuschnig, Christoph Vogel, Timothy M Larose, Catherine Impact of in situ solar irradiation on snow bacterial communities and functional potential |
topic_facet |
Applied Microbiology and Biotechnology Ecology Microbiology |
description |
Abstract Polar regions are increasingly exposed to ultraviolet light due to ozone depletion. Snowpacks contain photochemically active particles that, when irradiated, can lead to the production and accumulation of reactive species that can induce oxidative stress on snow microorganisms. This could generate a selective pressure on snowpack bacteria. In this study, snow microcosms were buried in a snowpack at Ny-Ålesund (Svalbard), either exposed to solar irradiation or incubated in the dark for 10 days, and the bacterial response to solar irradiation was evaluated in situ using a metagenomics approach. Solar irradiation induced a significant decrease in bacterial abundance and richness. Genes involved in glutathione synthesis, sulphur metabolism, and multidrug efflux were significantly enriched in the light, whereas genes related to cell wall assembly and nutrient uptake were more abundant in the dark. This is the first study demonstrating the response of snow bacterial communities to solar irradiation in situ and providing insights into the mechanisms involved. Our research shows that polar sun irradiation is sufficiently intense to impose a selective pressure on snow bacteria and supports the concern that increased ultraviolet exposure due to anthropogenic activities and climatic change could drive critical changes in the structure and functioning of snow bacterial communities. |
author2 |
IPEV |
format |
Article in Journal/Newspaper |
author |
Sanchez-Cid, Concepcion Keuschnig, Christoph Vogel, Timothy M Larose, Catherine |
author_facet |
Sanchez-Cid, Concepcion Keuschnig, Christoph Vogel, Timothy M Larose, Catherine |
author_sort |
Sanchez-Cid, Concepcion |
title |
Impact of in situ solar irradiation on snow bacterial communities and functional potential |
title_short |
Impact of in situ solar irradiation on snow bacterial communities and functional potential |
title_full |
Impact of in situ solar irradiation on snow bacterial communities and functional potential |
title_fullStr |
Impact of in situ solar irradiation on snow bacterial communities and functional potential |
title_full_unstemmed |
Impact of in situ solar irradiation on snow bacterial communities and functional potential |
title_sort |
impact of in situ solar irradiation on snow bacterial communities and functional potential |
publisher |
Oxford University Press (OUP) |
publishDate |
2023 |
url |
http://dx.doi.org/10.1093/femsec/fiad042 https://academic.oup.com/femsec/advance-article-pdf/doi/10.1093/femsec/fiad042/50020519/fiad042.pdf https://academic.oup.com/femsec/article-pdf/99/6/fiad042/50600115/fiad042.pdf |
genre |
Ny Ålesund Ny-Ålesund Svalbard |
genre_facet |
Ny Ålesund Ny-Ålesund Svalbard |
op_source |
FEMS Microbiology Ecology volume 99, issue 6 ISSN 1574-6941 |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model |
op_doi |
https://doi.org/10.1093/femsec/fiad042 |
container_title |
FEMS Microbiology Ecology |
container_volume |
99 |
container_issue |
6 |
_version_ |
1797591061817720832 |