Sources and selection of snow-specific microbial communities in a Greenlandic sea ice snow cover
International audience Sea ice and its snow cover are critical for global processes including climate regulation and biogeochemical cycles. Despite an increase in studies focused on snow microorganisms, the ecology of snow inhabitants remains unclear. In this study, we investigated sources and selec...
Published in: | Scientific Reports |
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Main Authors: | , , , , |
Other Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2019
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Online Access: | https://hal.archives-ouvertes.fr/hal-02122082 https://hal.archives-ouvertes.fr/hal-02122082/document https://hal.archives-ouvertes.fr/hal-02122082/file/s41598-019-38744-y.pdf https://doi.org/10.1038/s41598-019-38744-y |
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ftccsdartic:oai:HAL:hal-02122082v1 |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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ftccsdartic |
language |
English |
topic |
[SPI]Engineering Sciences [physics] [SDE]Environmental Sciences |
spellingShingle |
[SPI]Engineering Sciences [physics] [SDE]Environmental Sciences Maccario, Lorrie Carpenter, Shelly Deming, Jody, Vogel, Timothy, Larose, Catherine Sources and selection of snow-specific microbial communities in a Greenlandic sea ice snow cover |
topic_facet |
[SPI]Engineering Sciences [physics] [SDE]Environmental Sciences |
description |
International audience Sea ice and its snow cover are critical for global processes including climate regulation and biogeochemical cycles. Despite an increase in studies focused on snow microorganisms, the ecology of snow inhabitants remains unclear. In this study, we investigated sources and selection of a snowpackspecific microbial community by comparing metagenomes from samples collected in a Greenlandic fjord within a vertical profile including atmosphere, snowpack with four distinct layers of snow, sea ice brine and seawater. Microbial communities in all snow layers derived from mixed sources, both marine and terrestrial, and were more similar to atmospheric communities than to sea ice or seawater communities. The surface snow metagenomes were characterized by the occurrence of genes involved in photochemical stress resistance, primary production and metabolism of diverse carbon sources. The basal saline snow layer that was in direct contact with the sea ice surface harbored a higher abundance of cells than the overlying snow layers, with a predominance of Alteromonadales and a higher relative abundance of marine representatives. However, the overall taxonomic structure of the saline layer was more similar to that of other snow layers and the atmosphere than to underlying sea ice and seawater. The expulsion of relatively nutrient-rich sea ice brine into basal snow might have stimulated the growth of copiotrophic psychro-and halotolerant snow members. Our study indicates that the size, composition and function of snowpack microbial communities over sea ice were influenced primarily by atmospheric deposition and inflow of sea ice brine and that they form a snow-specific assemblage reflecting the particular environmental conditions of the snowpack habitat. |
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) Institut National des Sciences Appliquées (INSA)-Université de Lyon-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) Institut National des Sciences Appliquées (INSA)-Université de Lyon-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) University of Copenhagen = Københavns Universitet (KU) School of Oceanography Seattle University of Washington Seattle |
format |
Article in Journal/Newspaper |
author |
Maccario, Lorrie Carpenter, Shelly Deming, Jody, Vogel, Timothy, Larose, Catherine |
author_facet |
Maccario, Lorrie Carpenter, Shelly Deming, Jody, Vogel, Timothy, Larose, Catherine |
author_sort |
Maccario, Lorrie |
title |
Sources and selection of snow-specific microbial communities in a Greenlandic sea ice snow cover |
title_short |
Sources and selection of snow-specific microbial communities in a Greenlandic sea ice snow cover |
title_full |
Sources and selection of snow-specific microbial communities in a Greenlandic sea ice snow cover |
title_fullStr |
Sources and selection of snow-specific microbial communities in a Greenlandic sea ice snow cover |
title_full_unstemmed |
Sources and selection of snow-specific microbial communities in a Greenlandic sea ice snow cover |
title_sort |
sources and selection of snow-specific microbial communities in a greenlandic sea ice snow cover |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://hal.archives-ouvertes.fr/hal-02122082 https://hal.archives-ouvertes.fr/hal-02122082/document https://hal.archives-ouvertes.fr/hal-02122082/file/s41598-019-38744-y.pdf https://doi.org/10.1038/s41598-019-38744-y |
genre |
greenlandic Sea ice |
genre_facet |
greenlandic Sea ice |
op_source |
ISSN: 2045-2322 EISSN: 2045-2322 Scientific Reports https://hal.archives-ouvertes.fr/hal-02122082 Scientific Reports, Nature Publishing Group, 2019, 9 (1), ⟨10.1038/s41598-019-38744-y⟩ |
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info:eu-repo/semantics/altIdentifier/doi/10.1038/s41598-019-38744-y hal-02122082 https://hal.archives-ouvertes.fr/hal-02122082 https://hal.archives-ouvertes.fr/hal-02122082/document https://hal.archives-ouvertes.fr/hal-02122082/file/s41598-019-38744-y.pdf doi:10.1038/s41598-019-38744-y |
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info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1038/s41598-019-38744-y |
container_title |
Scientific Reports |
container_volume |
9 |
container_issue |
1 |
_version_ |
1766020941816528896 |
spelling |
ftccsdartic:oai:HAL:hal-02122082v1 2023-05-15T16:31:10+02:00 Sources and selection of snow-specific microbial communities in a Greenlandic sea ice snow cover Maccario, Lorrie Carpenter, Shelly Deming, Jody, 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) Institut National des Sciences Appliquées (INSA)-Université de Lyon-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) Institut National des Sciences Appliquées (INSA)-Université de Lyon-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) University of Copenhagen = Københavns Universitet (KU) School of Oceanography Seattle University of Washington Seattle 2019-12 https://hal.archives-ouvertes.fr/hal-02122082 https://hal.archives-ouvertes.fr/hal-02122082/document https://hal.archives-ouvertes.fr/hal-02122082/file/s41598-019-38744-y.pdf https://doi.org/10.1038/s41598-019-38744-y en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/s41598-019-38744-y hal-02122082 https://hal.archives-ouvertes.fr/hal-02122082 https://hal.archives-ouvertes.fr/hal-02122082/document https://hal.archives-ouvertes.fr/hal-02122082/file/s41598-019-38744-y.pdf doi:10.1038/s41598-019-38744-y info:eu-repo/semantics/OpenAccess ISSN: 2045-2322 EISSN: 2045-2322 Scientific Reports https://hal.archives-ouvertes.fr/hal-02122082 Scientific Reports, Nature Publishing Group, 2019, 9 (1), ⟨10.1038/s41598-019-38744-y⟩ [SPI]Engineering Sciences [physics] [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2019 ftccsdartic https://doi.org/10.1038/s41598-019-38744-y 2021-11-07T00:23:26Z International audience Sea ice and its snow cover are critical for global processes including climate regulation and biogeochemical cycles. Despite an increase in studies focused on snow microorganisms, the ecology of snow inhabitants remains unclear. In this study, we investigated sources and selection of a snowpackspecific microbial community by comparing metagenomes from samples collected in a Greenlandic fjord within a vertical profile including atmosphere, snowpack with four distinct layers of snow, sea ice brine and seawater. Microbial communities in all snow layers derived from mixed sources, both marine and terrestrial, and were more similar to atmospheric communities than to sea ice or seawater communities. The surface snow metagenomes were characterized by the occurrence of genes involved in photochemical stress resistance, primary production and metabolism of diverse carbon sources. The basal saline snow layer that was in direct contact with the sea ice surface harbored a higher abundance of cells than the overlying snow layers, with a predominance of Alteromonadales and a higher relative abundance of marine representatives. However, the overall taxonomic structure of the saline layer was more similar to that of other snow layers and the atmosphere than to underlying sea ice and seawater. The expulsion of relatively nutrient-rich sea ice brine into basal snow might have stimulated the growth of copiotrophic psychro-and halotolerant snow members. Our study indicates that the size, composition and function of snowpack microbial communities over sea ice were influenced primarily by atmospheric deposition and inflow of sea ice brine and that they form a snow-specific assemblage reflecting the particular environmental conditions of the snowpack habitat. Article in Journal/Newspaper greenlandic Sea ice Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Scientific Reports 9 1 |