Subglacial LakeWhillans microbial biogeochemistry:A synthesis of current knowledge
Liquid water occurs below glaciers and ice sheets globally enabling the existence of an array of aquatic microbial ecosystems. In Antarctica, large subglacial lakes are present beneath hundreds to thousands of metres of ice, and scientific interest in exploring these environments has escalated over...
Published in: | Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
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Online Access: | https://pure.au.dk/portal/en/publications/9abd2f51-9869-41d4-89ec-88e910aad506 https://doi.org/10.1098/rsta.2014.0290 |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/9abd2f51-9869-41d4-89ec-88e910aad506 2024-09-15T17:48:30+00:00 Subglacial LakeWhillans microbial biogeochemistry:A synthesis of current knowledge Mikucki, Jill A Lee, P. A. Ghosh, D. Purcell, A. M. Mitchell, A. C. Mankoff, K. D. Fisher, A. T. Tulaczyk, S. Carter, S. Siegfried, M. R. Fricker, H. A. Hodson, T. Coenen, Marieke J H Powell, R. Scherer, R. Vick-Majors, T. Achberger, A. A. Christner, B. C. Tranter, Martyn 2016-01-28 https://pure.au.dk/portal/en/publications/9abd2f51-9869-41d4-89ec-88e910aad506 https://doi.org/10.1098/rsta.2014.0290 eng eng https://pure.au.dk/portal/en/publications/9abd2f51-9869-41d4-89ec-88e910aad506 info:eu-repo/semantics/restrictedAccess Mikucki , J A , Lee , P A , Ghosh , D , Purcell , A M , Mitchell , A C , Mankoff , K D , Fisher , A T , Tulaczyk , S , Carter , S , Siegfried , M R , Fricker , H A , Hodson , T , Coenen , M J H , Powell , R , Scherer , R , Vick-Majors , T , Achberger , A A , Christner , B C & Tranter , M 2016 , ' Subglacial LakeWhillans microbial biogeochemistry : A synthesis of current knowledge ' , Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences , vol. 374 , no. 2059 . https://doi.org/10.1098/rsta.2014.0290 Antarctica Geomicrobiology Microbial diversity Subglacial lakes Whillans Ice Stream WISSARD article 2016 ftuniaarhuspubl https://doi.org/10.1098/rsta.2014.0290 2024-06-25T14:16:19Z Liquid water occurs below glaciers and ice sheets globally enabling the existence of an array of aquatic microbial ecosystems. In Antarctica, large subglacial lakes are present beneath hundreds to thousands of metres of ice, and scientific interest in exploring these environments has escalated over the past decade. After years of planning, the first team of scientists and engineers cleanly accessed and retrieved pristine samples from a West Antarctic subglacial lake ecosystem in January 2013. This paper reviews the findings to date on Subglacial Lake Whillans and presents new supporting data on the carbon and energy metabolism of resident microbes. The analysis of water and sediments from the lake revealed a diverse microbial community composed of bacteria and archaea that are close relatives of species known to use reduced N, S or Fe and CH4 as energy sources. The water chemistry of Subglacial Lake Whillans was dominated by weathering products from silicate minerals with a minor influence from seawater. Contributions to water chemistry from microbial sulfide oxidation and carbonation reactions were supported by genomic data. Collectively, these results provide unequivocal evidence that subglacial environments in this region of West Antarctica host active microbial ecosystems that participate in subglacial biogeochemical cycling. Article in Journal/Newspaper Antarc* Antarctic Antarctica West Antarctica Whillans Ice Stream Aarhus University: Research Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 374 2059 20140290 |
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Open Polar |
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Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Antarctica Geomicrobiology Microbial diversity Subglacial lakes Whillans Ice Stream WISSARD |
spellingShingle |
Antarctica Geomicrobiology Microbial diversity Subglacial lakes Whillans Ice Stream WISSARD Mikucki, Jill A Lee, P. A. Ghosh, D. Purcell, A. M. Mitchell, A. C. Mankoff, K. D. Fisher, A. T. Tulaczyk, S. Carter, S. Siegfried, M. R. Fricker, H. A. Hodson, T. Coenen, Marieke J H Powell, R. Scherer, R. Vick-Majors, T. Achberger, A. A. Christner, B. C. Tranter, Martyn Subglacial LakeWhillans microbial biogeochemistry:A synthesis of current knowledge |
topic_facet |
Antarctica Geomicrobiology Microbial diversity Subglacial lakes Whillans Ice Stream WISSARD |
description |
Liquid water occurs below glaciers and ice sheets globally enabling the existence of an array of aquatic microbial ecosystems. In Antarctica, large subglacial lakes are present beneath hundreds to thousands of metres of ice, and scientific interest in exploring these environments has escalated over the past decade. After years of planning, the first team of scientists and engineers cleanly accessed and retrieved pristine samples from a West Antarctic subglacial lake ecosystem in January 2013. This paper reviews the findings to date on Subglacial Lake Whillans and presents new supporting data on the carbon and energy metabolism of resident microbes. The analysis of water and sediments from the lake revealed a diverse microbial community composed of bacteria and archaea that are close relatives of species known to use reduced N, S or Fe and CH4 as energy sources. The water chemistry of Subglacial Lake Whillans was dominated by weathering products from silicate minerals with a minor influence from seawater. Contributions to water chemistry from microbial sulfide oxidation and carbonation reactions were supported by genomic data. Collectively, these results provide unequivocal evidence that subglacial environments in this region of West Antarctica host active microbial ecosystems that participate in subglacial biogeochemical cycling. |
format |
Article in Journal/Newspaper |
author |
Mikucki, Jill A Lee, P. A. Ghosh, D. Purcell, A. M. Mitchell, A. C. Mankoff, K. D. Fisher, A. T. Tulaczyk, S. Carter, S. Siegfried, M. R. Fricker, H. A. Hodson, T. Coenen, Marieke J H Powell, R. Scherer, R. Vick-Majors, T. Achberger, A. A. Christner, B. C. Tranter, Martyn |
author_facet |
Mikucki, Jill A Lee, P. A. Ghosh, D. Purcell, A. M. Mitchell, A. C. Mankoff, K. D. Fisher, A. T. Tulaczyk, S. Carter, S. Siegfried, M. R. Fricker, H. A. Hodson, T. Coenen, Marieke J H Powell, R. Scherer, R. Vick-Majors, T. Achberger, A. A. Christner, B. C. Tranter, Martyn |
author_sort |
Mikucki, Jill A |
title |
Subglacial LakeWhillans microbial biogeochemistry:A synthesis of current knowledge |
title_short |
Subglacial LakeWhillans microbial biogeochemistry:A synthesis of current knowledge |
title_full |
Subglacial LakeWhillans microbial biogeochemistry:A synthesis of current knowledge |
title_fullStr |
Subglacial LakeWhillans microbial biogeochemistry:A synthesis of current knowledge |
title_full_unstemmed |
Subglacial LakeWhillans microbial biogeochemistry:A synthesis of current knowledge |
title_sort |
subglacial lakewhillans microbial biogeochemistry:a synthesis of current knowledge |
publishDate |
2016 |
url |
https://pure.au.dk/portal/en/publications/9abd2f51-9869-41d4-89ec-88e910aad506 https://doi.org/10.1098/rsta.2014.0290 |
genre |
Antarc* Antarctic Antarctica West Antarctica Whillans Ice Stream |
genre_facet |
Antarc* Antarctic Antarctica West Antarctica Whillans Ice Stream |
op_source |
Mikucki , J A , Lee , P A , Ghosh , D , Purcell , A M , Mitchell , A C , Mankoff , K D , Fisher , A T , Tulaczyk , S , Carter , S , Siegfried , M R , Fricker , H A , Hodson , T , Coenen , M J H , Powell , R , Scherer , R , Vick-Majors , T , Achberger , A A , Christner , B C & Tranter , M 2016 , ' Subglacial LakeWhillans microbial biogeochemistry : A synthesis of current knowledge ' , Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences , vol. 374 , no. 2059 . https://doi.org/10.1098/rsta.2014.0290 |
op_relation |
https://pure.au.dk/portal/en/publications/9abd2f51-9869-41d4-89ec-88e910aad506 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1098/rsta.2014.0290 |
container_title |
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
container_volume |
374 |
container_issue |
2059 |
container_start_page |
20140290 |
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1810289774946156544 |