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/11368/3029178 https://doi.org/10.3390/microorganisms10091753 https://www.mdpi.com/2076-2607/10/9/1753 |
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ftunitriestiris:oai:arts.units.it:11368/3029178 2023-05-15T13:36:43+02:00 Antarctic Salt-Cones: An Oasis of Microbial Life? The Example of Boulder Clay Glacier (Northern Victoria Land) Maurizio Azzaro Maria Papale Carmen Rizzo Emanuele Forte Davide Lenaz Mauro Guglielmin Angelina Lo Giudice Azzaro, Maurizio Papale, Maria Rizzo, Carmen Forte, Emanuele Lenaz, Davide Guglielmin, Mauro Lo Giudice, Angelina 2022 STAMPA https://hdl.handle.net/11368/3029178 https://doi.org/10.3390/microorganisms10091753 https://www.mdpi.com/2076-2607/10/9/1753 eng eng info:eu-repo/semantics/altIdentifier/pmid/36144355 info:eu-repo/semantics/altIdentifier/wos/WOS:000859635400001 volume:2022/10 firstpage:1 lastpage:19 numberofpages:19 journal:MICROORGANISMS https://hdl.handle.net/11368/3029178 doi:10.3390/microorganisms10091753 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85138748861 https://www.mdpi.com/2076-2607/10/9/1753 info:eu-repo/semantics/openAccess extremophile salt cone mirabilite thenardite prokaryotic diversity supraglacial systems info:eu-repo/semantics/article 2022 ftunitriestiris https://doi.org/10.3390/microorganisms10091753 2023-04-09T05:59:07Z 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 Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste) Antarctic Victoria Land Microorganisms 10 9 1753 |
institution |
Open Polar |
collection |
Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste) |
op_collection_id |
ftunitriestiris |
language |
English |
topic |
extremophile salt cone mirabilite thenardite prokaryotic diversity supraglacial systems |
spellingShingle |
extremophile salt cone mirabilite thenardite prokaryotic diversity supraglacial systems Maurizio Azzaro Maria Papale Carmen Rizzo Emanuele Forte Davide Lenaz Mauro Guglielmin Angelina Lo Giudice Antarctic Salt-Cones: An Oasis of Microbial Life? The Example of Boulder Clay Glacier (Northern Victoria Land) |
topic_facet |
extremophile salt cone mirabilite thenardite prokaryotic diversity supraglacial systems |
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, Maurizio Papale, Maria Rizzo, Carmen Forte, Emanuele Lenaz, Davide Guglielmin, Mauro Lo Giudice, Angelina |
format |
Article in Journal/Newspaper |
author |
Maurizio Azzaro Maria Papale Carmen Rizzo Emanuele Forte Davide Lenaz Mauro Guglielmin Angelina Lo Giudice |
author_facet |
Maurizio Azzaro Maria Papale Carmen Rizzo Emanuele Forte Davide Lenaz Mauro Guglielmin Angelina Lo Giudice |
author_sort |
Maurizio Azzaro |
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/11368/3029178 https://doi.org/10.3390/microorganisms10091753 https://www.mdpi.com/2076-2607/10/9/1753 |
geographic |
Antarctic Victoria Land |
geographic_facet |
Antarctic Victoria Land |
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:2022/10 firstpage:1 lastpage:19 numberofpages:19 journal:MICROORGANISMS https://hdl.handle.net/11368/3029178 doi:10.3390/microorganisms10091753 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85138748861 https://www.mdpi.com/2076-2607/10/9/1753 |
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 |
_version_ |
1766082914384084992 |