Physicochemical Drivers of Microbial Community Structure in Sediments of Lake Hazen, Nunavut, Canada
The Arctic is undergoing rapid environmental change, potentially affecting the physicochemical constraints of microbial communities that play a large role in both carbon and nutrient cycling in lacustrine environments. However, the microbial communities in such Arctic environments have seldom been s...
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ftdoajarticles:oai:doaj.org/article:0f0406a91024464abe99fb04fb2f4b76 2023-05-15T14:34:35+02:00 Physicochemical Drivers of Microbial Community Structure in Sediments of Lake Hazen, Nunavut, Canada Matti O. Ruuskanen Kyra A. St. Pierre Vincent L. St. Louis Stéphane Aris-Brosou Alexandre J. Poulain 2018-06-01T00:00:00Z https://doi.org/10.3389/fmicb.2018.01138 https://doaj.org/article/0f0406a91024464abe99fb04fb2f4b76 EN eng Frontiers Media S.A. https://www.frontiersin.org/article/10.3389/fmicb.2018.01138/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2018.01138 https://doaj.org/article/0f0406a91024464abe99fb04fb2f4b76 Frontiers in Microbiology, Vol 9 (2018) microbial diversity microbial community composition arctic lakes lake sediments high-throughput sequencing machine learning Microbiology QR1-502 article 2018 ftdoajarticles https://doi.org/10.3389/fmicb.2018.01138 2022-12-31T14:11:22Z The Arctic is undergoing rapid environmental change, potentially affecting the physicochemical constraints of microbial communities that play a large role in both carbon and nutrient cycling in lacustrine environments. However, the microbial communities in such Arctic environments have seldom been studied, and the drivers of their composition are poorly characterized. To address these gaps, we surveyed the biologically active surface sediments in Lake Hazen, the largest lake by volume north of the Arctic Circle, and a small lake and shoreline pond in its watershed. High-throughput amplicon sequencing of the 16S rRNA gene uncovered a community dominated by Proteobacteria, Bacteroidetes, and Chloroflexi, similar to those found in other cold and oligotrophic lake sediments. We also show that the microbial community structure in this Arctic polar desert is shaped by pH and redox gradients. This study lays the groundwork for predicting how sediment microbial communities in the Arctic could respond as climate change proceeds to alter their physicochemical constraints. Article in Journal/Newspaper Arctic Climate change Lake Hazen Nunavut polar desert Directory of Open Access Journals: DOAJ Articles Arctic Nunavut Canada Lake Hazen ENVELOPE(-71.017,-71.017,81.797,81.797) Frontiers in Microbiology 9 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
microbial diversity microbial community composition arctic lakes lake sediments high-throughput sequencing machine learning Microbiology QR1-502 |
spellingShingle |
microbial diversity microbial community composition arctic lakes lake sediments high-throughput sequencing machine learning Microbiology QR1-502 Matti O. Ruuskanen Kyra A. St. Pierre Vincent L. St. Louis Stéphane Aris-Brosou Alexandre J. Poulain Physicochemical Drivers of Microbial Community Structure in Sediments of Lake Hazen, Nunavut, Canada |
topic_facet |
microbial diversity microbial community composition arctic lakes lake sediments high-throughput sequencing machine learning Microbiology QR1-502 |
description |
The Arctic is undergoing rapid environmental change, potentially affecting the physicochemical constraints of microbial communities that play a large role in both carbon and nutrient cycling in lacustrine environments. However, the microbial communities in such Arctic environments have seldom been studied, and the drivers of their composition are poorly characterized. To address these gaps, we surveyed the biologically active surface sediments in Lake Hazen, the largest lake by volume north of the Arctic Circle, and a small lake and shoreline pond in its watershed. High-throughput amplicon sequencing of the 16S rRNA gene uncovered a community dominated by Proteobacteria, Bacteroidetes, and Chloroflexi, similar to those found in other cold and oligotrophic lake sediments. We also show that the microbial community structure in this Arctic polar desert is shaped by pH and redox gradients. This study lays the groundwork for predicting how sediment microbial communities in the Arctic could respond as climate change proceeds to alter their physicochemical constraints. |
format |
Article in Journal/Newspaper |
author |
Matti O. Ruuskanen Kyra A. St. Pierre Vincent L. St. Louis Stéphane Aris-Brosou Alexandre J. Poulain |
author_facet |
Matti O. Ruuskanen Kyra A. St. Pierre Vincent L. St. Louis Stéphane Aris-Brosou Alexandre J. Poulain |
author_sort |
Matti O. Ruuskanen |
title |
Physicochemical Drivers of Microbial Community Structure in Sediments of Lake Hazen, Nunavut, Canada |
title_short |
Physicochemical Drivers of Microbial Community Structure in Sediments of Lake Hazen, Nunavut, Canada |
title_full |
Physicochemical Drivers of Microbial Community Structure in Sediments of Lake Hazen, Nunavut, Canada |
title_fullStr |
Physicochemical Drivers of Microbial Community Structure in Sediments of Lake Hazen, Nunavut, Canada |
title_full_unstemmed |
Physicochemical Drivers of Microbial Community Structure in Sediments of Lake Hazen, Nunavut, Canada |
title_sort |
physicochemical drivers of microbial community structure in sediments of lake hazen, nunavut, canada |
publisher |
Frontiers Media S.A. |
publishDate |
2018 |
url |
https://doi.org/10.3389/fmicb.2018.01138 https://doaj.org/article/0f0406a91024464abe99fb04fb2f4b76 |
long_lat |
ENVELOPE(-71.017,-71.017,81.797,81.797) |
geographic |
Arctic Nunavut Canada Lake Hazen |
geographic_facet |
Arctic Nunavut Canada Lake Hazen |
genre |
Arctic Climate change Lake Hazen Nunavut polar desert |
genre_facet |
Arctic Climate change Lake Hazen Nunavut polar desert |
op_source |
Frontiers in Microbiology, Vol 9 (2018) |
op_relation |
https://www.frontiersin.org/article/10.3389/fmicb.2018.01138/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2018.01138 https://doaj.org/article/0f0406a91024464abe99fb04fb2f4b76 |
op_doi |
https://doi.org/10.3389/fmicb.2018.01138 |
container_title |
Frontiers in Microbiology |
container_volume |
9 |
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1766307598703788032 |