Antarctic Salt-Cones: An Oasis of Microbial Life? The Example of Boulder Clay Glacier (Northern Victoria Land)
The evaporation of a localized, highly saline water body of the Boulder Clay debris-covered glacier, in the Northern Victoria Land, probably generated the accumulation of mirabilite (Na2SO4 × 10H2O) and thenardite (Na2SO4) in a glacier salt-cone. Such an extremely cold and salty environment resemble...
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Online Access: | https://hdl.handle.net/11383/2152591 https://doi.org/10.3390/microorganisms10091753 |
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ftuninsubriairis:oai:irinsubria.uninsubria.it:11383/2152591 2024-04-21T07:48:19+00:00 Antarctic Salt-Cones: An Oasis of Microbial Life? The Example of Boulder Clay Glacier (Northern Victoria Land) Azzaro M. Papale M. Rizzo C. Forte E. Lenaz D. Guglielmin M. Lo Giudice A. Azzaro, M. Papale, M. Rizzo, C. Forte, E. Lenaz, D. Guglielmin, M. Lo Giudice, A. 2022 ELETTRONICO https://hdl.handle.net/11383/2152591 https://doi.org/10.3390/microorganisms10091753 eng eng info:eu-repo/semantics/altIdentifier/pmid/36144355 info:eu-repo/semantics/altIdentifier/wos/WOS:000859635400001 volume:10 issue:9 firstpage:1 lastpage:16 numberofpages:16 journal:MICROORGANISMS https://hdl.handle.net/11383/2152591 doi:10.3390/microorganisms10091753 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85138748861 info:eu-repo/semantics/openAccess extremophile mirabilite prokaryotic diversity salt cone supraglacial system thenardite info:eu-repo/semantics/article 2022 ftuninsubriairis https://doi.org/10.3390/microorganisms10091753 2024-03-28T01:25:43Z The evaporation of a localized, highly saline water body of the Boulder Clay debris-covered glacier, in the Northern Victoria Land, probably generated the accumulation of mirabilite (Na2SO4 × 10H2O) and thenardite (Na2SO4) in a glacier salt-cone. Such an extremely cold and salty environment resembles the conditions on Mars, so it can be considered a terrestrial analog. The study was aimed at gaining a first glimpse at the prokaryotic community associated with Antarctic mirabilite and thenardite minerals and also to find clues about the origin of the salts. For this purpose, samples were analyzed by a next generation approach to investigate the prokaryotic (Bacteria and Archaea) diversity. Phylogenetic analysis allowed the identification of Bacteroidota, Actinobacteriota, Firmicutes, and Gammaproteobacteria as the main bacterial lineages, in addition to Archaea in the phylum Halobacterota. The genera Arthrobacter, Rhodoglobus, Gillisia, Marinobacter and Psychrobacter were particularly abundant. Interestingly, several bacterial and archaeal sequences were related to halotolerant and halophilic genera, previously reported in a variety of marine environments and saline habitats, also in Antarctica. The analyzed salt community also included members that are believed to play a major role in the sulfur cycle. Article in Journal/Newspaper Antarc* Antarctic Antarctica Victoria Land IRInSubria - Institutional Repository Insubria (Università degli Studi dell’Insubria) Microorganisms 10 9 1753 |
institution |
Open Polar |
collection |
IRInSubria - Institutional Repository Insubria (Università degli Studi dell’Insubria) |
op_collection_id |
ftuninsubriairis |
language |
English |
topic |
extremophile mirabilite prokaryotic diversity salt cone supraglacial system thenardite |
spellingShingle |
extremophile mirabilite prokaryotic diversity salt cone supraglacial system thenardite Azzaro M. Papale M. Rizzo C. Forte E. Lenaz D. Guglielmin M. Lo Giudice A. Antarctic Salt-Cones: An Oasis of Microbial Life? The Example of Boulder Clay Glacier (Northern Victoria Land) |
topic_facet |
extremophile mirabilite prokaryotic diversity salt cone supraglacial system thenardite |
description |
The evaporation of a localized, highly saline water body of the Boulder Clay debris-covered glacier, in the Northern Victoria Land, probably generated the accumulation of mirabilite (Na2SO4 × 10H2O) and thenardite (Na2SO4) in a glacier salt-cone. Such an extremely cold and salty environment resembles the conditions on Mars, so it can be considered a terrestrial analog. The study was aimed at gaining a first glimpse at the prokaryotic community associated with Antarctic mirabilite and thenardite minerals and also to find clues about the origin of the salts. For this purpose, samples were analyzed by a next generation approach to investigate the prokaryotic (Bacteria and Archaea) diversity. Phylogenetic analysis allowed the identification of Bacteroidota, Actinobacteriota, Firmicutes, and Gammaproteobacteria as the main bacterial lineages, in addition to Archaea in the phylum Halobacterota. The genera Arthrobacter, Rhodoglobus, Gillisia, Marinobacter and Psychrobacter were particularly abundant. Interestingly, several bacterial and archaeal sequences were related to halotolerant and halophilic genera, previously reported in a variety of marine environments and saline habitats, also in Antarctica. The analyzed salt community also included members that are believed to play a major role in the sulfur cycle. |
author2 |
Azzaro, M. Papale, M. Rizzo, C. Forte, E. Lenaz, D. Guglielmin, M. Lo Giudice, A. |
format |
Article in Journal/Newspaper |
author |
Azzaro M. Papale M. Rizzo C. Forte E. Lenaz D. Guglielmin M. Lo Giudice A. |
author_facet |
Azzaro M. Papale M. Rizzo C. Forte E. Lenaz D. Guglielmin M. Lo Giudice A. |
author_sort |
Azzaro M. |
title |
Antarctic Salt-Cones: An Oasis of Microbial Life? The Example of Boulder Clay Glacier (Northern Victoria Land) |
title_short |
Antarctic Salt-Cones: An Oasis of Microbial Life? The Example of Boulder Clay Glacier (Northern Victoria Land) |
title_full |
Antarctic Salt-Cones: An Oasis of Microbial Life? The Example of Boulder Clay Glacier (Northern Victoria Land) |
title_fullStr |
Antarctic Salt-Cones: An Oasis of Microbial Life? The Example of Boulder Clay Glacier (Northern Victoria Land) |
title_full_unstemmed |
Antarctic Salt-Cones: An Oasis of Microbial Life? The Example of Boulder Clay Glacier (Northern Victoria Land) |
title_sort |
antarctic salt-cones: an oasis of microbial life? the example of boulder clay glacier (northern victoria land) |
publishDate |
2022 |
url |
https://hdl.handle.net/11383/2152591 https://doi.org/10.3390/microorganisms10091753 |
genre |
Antarc* Antarctic Antarctica Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica Victoria Land |
op_relation |
info:eu-repo/semantics/altIdentifier/pmid/36144355 info:eu-repo/semantics/altIdentifier/wos/WOS:000859635400001 volume:10 issue:9 firstpage:1 lastpage:16 numberofpages:16 journal:MICROORGANISMS https://hdl.handle.net/11383/2152591 doi:10.3390/microorganisms10091753 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85138748861 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3390/microorganisms10091753 |
container_title |
Microorganisms |
container_volume |
10 |
container_issue |
9 |
container_start_page |
1753 |
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1796949012271595520 |