Potential drivers of microbial community structure and function in Arctic snow
The Arctic seasonal snowpack can extend at times over a third of the Earth’s land surface. This chemically dynamic environment interacts constantly with different environmental compartments such as atmosphere, soil and meltwater, and thus, strongly influences the entire biosphere. However, the micro...
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ftdoajarticles:oai:doaj.org/article:d3076b550e3942b5b00169cfd79e59c4 2023-05-15T14:48:10+02:00 Potential drivers of microbial community structure and function in Arctic snow Lorrie eMaccario Timothy eVogel Catherine eLarose 2014-08-01T00:00:00Z https://doi.org/10.3389/fmicb.2014.00413 https://doaj.org/article/d3076b550e3942b5b00169cfd79e59c4 EN eng Frontiers Media S.A. http://journal.frontiersin.org/Journal/10.3389/fmicb.2014.00413/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2014.00413 https://doaj.org/article/d3076b550e3942b5b00169cfd79e59c4 Frontiers in Microbiology, Vol 5 (2014) Arctic Metagenomic cryosphere Microbial Adaptation Snowpack Microbiology QR1-502 article 2014 ftdoajarticles https://doi.org/10.3389/fmicb.2014.00413 2022-12-31T14:46:17Z The Arctic seasonal snowpack can extend at times over a third of the Earth’s land surface. This chemically dynamic environment interacts constantly with different environmental compartments such as atmosphere, soil and meltwater, and thus, strongly influences the entire biosphere. However, the microbial community associated with this habitat remains poorly understood. Our objective was to investigate the functional capacities, diversity and dynamics of the microorganisms in snow and to test the hypothesis that their functional signature reflects the snow environment. We applied a metagenomic approach to nine snow samples taken over two months during the spring season. Fungi, Bacteroidetes and Proteobacteria were predominant in metagenomic datasets and changes in community structure were apparent throughout the field season. Functional data that strongly correlated with chemical parameters like mercury or nitrogen species supported that this variation could be explained by fluctuations in environmental conditions. Through inter-environmental comparisons we examined potential drivers of snowpack microbial community functioning. Known cold adaptations were detected in all compared environments without any apparent differences in their relative abundance, implying that adaptive mechanisms related to environmental factors other than temperature may play a role in defining the snow microbial community. Photochemical reactions and oxidative stress seem to be decisive parameters in structuring microbial communities inside Arctic snowpacks. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Frontiers in Microbiology 5 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic Metagenomic cryosphere Microbial Adaptation Snowpack Microbiology QR1-502 |
spellingShingle |
Arctic Metagenomic cryosphere Microbial Adaptation Snowpack Microbiology QR1-502 Lorrie eMaccario Timothy eVogel Catherine eLarose Potential drivers of microbial community structure and function in Arctic snow |
topic_facet |
Arctic Metagenomic cryosphere Microbial Adaptation Snowpack Microbiology QR1-502 |
description |
The Arctic seasonal snowpack can extend at times over a third of the Earth’s land surface. This chemically dynamic environment interacts constantly with different environmental compartments such as atmosphere, soil and meltwater, and thus, strongly influences the entire biosphere. However, the microbial community associated with this habitat remains poorly understood. Our objective was to investigate the functional capacities, diversity and dynamics of the microorganisms in snow and to test the hypothesis that their functional signature reflects the snow environment. We applied a metagenomic approach to nine snow samples taken over two months during the spring season. Fungi, Bacteroidetes and Proteobacteria were predominant in metagenomic datasets and changes in community structure were apparent throughout the field season. Functional data that strongly correlated with chemical parameters like mercury or nitrogen species supported that this variation could be explained by fluctuations in environmental conditions. Through inter-environmental comparisons we examined potential drivers of snowpack microbial community functioning. Known cold adaptations were detected in all compared environments without any apparent differences in their relative abundance, implying that adaptive mechanisms related to environmental factors other than temperature may play a role in defining the snow microbial community. Photochemical reactions and oxidative stress seem to be decisive parameters in structuring microbial communities inside Arctic snowpacks. |
format |
Article in Journal/Newspaper |
author |
Lorrie eMaccario Timothy eVogel Catherine eLarose |
author_facet |
Lorrie eMaccario Timothy eVogel Catherine eLarose |
author_sort |
Lorrie eMaccario |
title |
Potential drivers of microbial community structure and function in Arctic snow |
title_short |
Potential drivers of microbial community structure and function in Arctic snow |
title_full |
Potential drivers of microbial community structure and function in Arctic snow |
title_fullStr |
Potential drivers of microbial community structure and function in Arctic snow |
title_full_unstemmed |
Potential drivers of microbial community structure and function in Arctic snow |
title_sort |
potential drivers of microbial community structure and function in arctic snow |
publisher |
Frontiers Media S.A. |
publishDate |
2014 |
url |
https://doi.org/10.3389/fmicb.2014.00413 https://doaj.org/article/d3076b550e3942b5b00169cfd79e59c4 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Frontiers in Microbiology, Vol 5 (2014) |
op_relation |
http://journal.frontiersin.org/Journal/10.3389/fmicb.2014.00413/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2014.00413 https://doaj.org/article/d3076b550e3942b5b00169cfd79e59c4 |
op_doi |
https://doi.org/10.3389/fmicb.2014.00413 |
container_title |
Frontiers in Microbiology |
container_volume |
5 |
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1766319262704599040 |