Impact of in situ solar irradiation on snow bacterial communities and functional potential
International audience 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...
Published in: | FEMS Microbiology Ecology |
---|---|
Main Authors: | , , , |
Other Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2023
|
Subjects: | |
Online Access: | https://hal.science/hal-04316133 https://doi.org/10.1093/femsec/fiad042 |
id |
ftinsalyonhal:oai:HAL:hal-04316133v1 |
---|---|
record_format |
openpolar |
spelling |
ftinsalyonhal:oai:HAL:hal-04316133v1 2024-02-04T10:03:22+01:00 Impact of in situ solar irradiation on snow bacterial communities and functional potential Sanchez-Cid, Concepcion Keuschnig, Christoph Vogel, Timothy Larose, Catherine Ampère, Département Bioingénierie (BioIng) Ampère (AMPERE) École Centrale de Lyon (ECL) Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon) Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-École Centrale de Lyon (ECL) Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) This work was funded by the IPEV Microlife project 2023-06 https://hal.science/hal-04316133 https://doi.org/10.1093/femsec/fiad042 en eng HAL CCSD Wiley-Blackwell info:eu-repo/semantics/altIdentifier/doi/10.1093/femsec/fiad042 info:eu-repo/semantics/altIdentifier/pmid/37073121 hal-04316133 https://hal.science/hal-04316133 doi:10.1093/femsec/fiad042 PUBMED: 37073121 WOS: 001006994700002 ISSN: 0168-6496 EISSN: 1574-6941 FEMS Microbiology Ecology https://hal.science/hal-04316133 FEMS Microbiology Ecology, 2023, 99 (6), pp.fiad042. ⟨10.1093/femsec/fiad042⟩ metagenomics polar microbiology solar irradiation ultraviolet light [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2023 ftinsalyonhal https://doi.org/10.1093/femsec/fiad042 2024-01-10T17:28:51Z International audience 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 INSA Lyon HAL (Institut National des Sciences Appliquées) Ny-Ålesund Svalbard FEMS Microbiology Ecology 99 6 |
institution |
Open Polar |
collection |
INSA Lyon HAL (Institut National des Sciences Appliquées) |
op_collection_id |
ftinsalyonhal |
language |
English |
topic |
metagenomics polar microbiology solar irradiation ultraviolet light [SDE]Environmental Sciences |
spellingShingle |
metagenomics polar microbiology solar irradiation ultraviolet light [SDE]Environmental Sciences Sanchez-Cid, Concepcion Keuschnig, Christoph Vogel, Timothy Larose, Catherine Impact of in situ solar irradiation on snow bacterial communities and functional potential |
topic_facet |
metagenomics polar microbiology solar irradiation ultraviolet light [SDE]Environmental Sciences |
description |
International audience 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 |
Ampère, Département Bioingénierie (BioIng) Ampère (AMPERE) École Centrale de Lyon (ECL) Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon) Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-École Centrale de Lyon (ECL) Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) This work was funded by the IPEV Microlife project |
format |
Article in Journal/Newspaper |
author |
Sanchez-Cid, Concepcion Keuschnig, Christoph Vogel, Timothy Larose, Catherine |
author_facet |
Sanchez-Cid, Concepcion Keuschnig, Christoph Vogel, Timothy 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 |
HAL CCSD |
publishDate |
2023 |
url |
https://hal.science/hal-04316133 https://doi.org/10.1093/femsec/fiad042 |
geographic |
Ny-Ålesund Svalbard |
geographic_facet |
Ny-Ålesund Svalbard |
genre |
Ny Ålesund Ny-Ålesund Svalbard |
genre_facet |
Ny Ålesund Ny-Ålesund Svalbard |
op_source |
ISSN: 0168-6496 EISSN: 1574-6941 FEMS Microbiology Ecology https://hal.science/hal-04316133 FEMS Microbiology Ecology, 2023, 99 (6), pp.fiad042. ⟨10.1093/femsec/fiad042⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1093/femsec/fiad042 info:eu-repo/semantics/altIdentifier/pmid/37073121 hal-04316133 https://hal.science/hal-04316133 doi:10.1093/femsec/fiad042 PUBMED: 37073121 WOS: 001006994700002 |
op_doi |
https://doi.org/10.1093/femsec/fiad042 |
container_title |
FEMS Microbiology Ecology |
container_volume |
99 |
container_issue |
6 |
_version_ |
1789970739781173248 |