Microbial Community Structure in Arctic Lake Sediments Reflect Variations in Holocene Climate Conditions
The reconstruction of past climate variability using physical and geochemical parameters from lake sedimentary records is a well-established and widely used approach. These geological records are also known to contain large and active microbial communities, believed to be responsive to their surroun...
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ftpubmed:oai:pubmedcentral.nih.gov:7396534 2023-05-15T15:10:24+02:00 Microbial Community Structure in Arctic Lake Sediments Reflect Variations in Holocene Climate Conditions Møller, Tor Einar van der Bilt, Willem G.M. Roerdink, Desiree L. Jørgensen, Steffen L. 2020-07-24 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7396534/ https://doi.org/10.3389/fmicb.2020.01520 en eng Frontiers Media S.A. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7396534/ http://dx.doi.org/10.3389/fmicb.2020.01520 Copyright © 2020 Møller, van der Bilt, Roerdink and Jørgensen. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. CC-BY Front Microbiol Microbiology Text 2020 ftpubmed https://doi.org/10.3389/fmicb.2020.01520 2020-09-06T00:30:47Z The reconstruction of past climate variability using physical and geochemical parameters from lake sedimentary records is a well-established and widely used approach. These geological records are also known to contain large and active microbial communities, believed to be responsive to their surroundings at the time of deposition, and proceed to interact intimately with their physical and chemical environment for millennia after deposition. However, less is known about the potential legacy of past climate conditions on the contemporary microbial community structure. We analysed two Holocene-length (past 10 ka BP) sediment cores from the glacier-fed Ymer Lake, located in a highly climate-sensitive region on south-eastern Greenland. By combining physical proxies, solid as well as fluid geochemistry, and microbial population profiling in a comprehensive statistical framework, we show that the microbial community structure clusters according to established lithological units, and thus captures past environmental conditions and climatic transitions. Further, comparative analyses of the two sedimentary records indicates that the manifestation of regional climate depends on local settings such as water column depth, which ultimately constrains microbial variability in the deposited sediments. The strong coupling between physical and geochemical shifts in the lake and microbial variation highlights the potential of molecular microbiological data to strengthen and refine existing sedimentological classifications of past environmental conditions and transitions. Furthermore, this coupling implies that microbially controlled transformation and partitioning of geochemical species (e.g., manganese and sulphate) in Ymer lake today is still affected by climatic conditions that prevailed thousands of years back in time. Text Arctic glacier Greenland PubMed Central (PMC) Arctic Arctic Lake ENVELOPE(-130.826,-130.826,57.231,57.231) Greenland Frontiers in Microbiology 11 |
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Open Polar |
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PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Microbiology |
spellingShingle |
Microbiology Møller, Tor Einar van der Bilt, Willem G.M. Roerdink, Desiree L. Jørgensen, Steffen L. Microbial Community Structure in Arctic Lake Sediments Reflect Variations in Holocene Climate Conditions |
topic_facet |
Microbiology |
description |
The reconstruction of past climate variability using physical and geochemical parameters from lake sedimentary records is a well-established and widely used approach. These geological records are also known to contain large and active microbial communities, believed to be responsive to their surroundings at the time of deposition, and proceed to interact intimately with their physical and chemical environment for millennia after deposition. However, less is known about the potential legacy of past climate conditions on the contemporary microbial community structure. We analysed two Holocene-length (past 10 ka BP) sediment cores from the glacier-fed Ymer Lake, located in a highly climate-sensitive region on south-eastern Greenland. By combining physical proxies, solid as well as fluid geochemistry, and microbial population profiling in a comprehensive statistical framework, we show that the microbial community structure clusters according to established lithological units, and thus captures past environmental conditions and climatic transitions. Further, comparative analyses of the two sedimentary records indicates that the manifestation of regional climate depends on local settings such as water column depth, which ultimately constrains microbial variability in the deposited sediments. The strong coupling between physical and geochemical shifts in the lake and microbial variation highlights the potential of molecular microbiological data to strengthen and refine existing sedimentological classifications of past environmental conditions and transitions. Furthermore, this coupling implies that microbially controlled transformation and partitioning of geochemical species (e.g., manganese and sulphate) in Ymer lake today is still affected by climatic conditions that prevailed thousands of years back in time. |
format |
Text |
author |
Møller, Tor Einar van der Bilt, Willem G.M. Roerdink, Desiree L. Jørgensen, Steffen L. |
author_facet |
Møller, Tor Einar van der Bilt, Willem G.M. Roerdink, Desiree L. Jørgensen, Steffen L. |
author_sort |
Møller, Tor Einar |
title |
Microbial Community Structure in Arctic Lake Sediments Reflect Variations in Holocene Climate Conditions |
title_short |
Microbial Community Structure in Arctic Lake Sediments Reflect Variations in Holocene Climate Conditions |
title_full |
Microbial Community Structure in Arctic Lake Sediments Reflect Variations in Holocene Climate Conditions |
title_fullStr |
Microbial Community Structure in Arctic Lake Sediments Reflect Variations in Holocene Climate Conditions |
title_full_unstemmed |
Microbial Community Structure in Arctic Lake Sediments Reflect Variations in Holocene Climate Conditions |
title_sort |
microbial community structure in arctic lake sediments reflect variations in holocene climate conditions |
publisher |
Frontiers Media S.A. |
publishDate |
2020 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7396534/ https://doi.org/10.3389/fmicb.2020.01520 |
long_lat |
ENVELOPE(-130.826,-130.826,57.231,57.231) |
geographic |
Arctic Arctic Lake Greenland |
geographic_facet |
Arctic Arctic Lake Greenland |
genre |
Arctic glacier Greenland |
genre_facet |
Arctic glacier Greenland |
op_source |
Front Microbiol |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7396534/ http://dx.doi.org/10.3389/fmicb.2020.01520 |
op_rights |
Copyright © 2020 Møller, van der Bilt, Roerdink and Jørgensen. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmicb.2020.01520 |
container_title |
Frontiers in Microbiology |
container_volume |
11 |
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1766341444803493888 |