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 (Na 2 SO 4 × 10H 2 O) and thenardite (Na 2 SO 4 ) in a glacier salt-cone. Such an extremely cold and salty environment...
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ftdoajarticles:oai:doaj.org/article:7cdaa3a20d054be4b69564f9a21c76d5 2023-05-15T13:45:15+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 2022-08-01T00:00:00Z https://doi.org/10.3390/microorganisms10091753 https://doaj.org/article/7cdaa3a20d054be4b69564f9a21c76d5 EN eng MDPI AG https://www.mdpi.com/2076-2607/10/9/1753 https://doaj.org/toc/2076-2607 doi:10.3390/microorganisms10091753 2076-2607 https://doaj.org/article/7cdaa3a20d054be4b69564f9a21c76d5 Microorganisms, Vol 10, Iss 1753, p 1753 (2022) extremophiles salt cone mirabilite thenardite prokaryotic diversity supraglacial systems Biology (General) QH301-705.5 article 2022 ftdoajarticles https://doi.org/10.3390/microorganisms10091753 2022-12-30T22:02:24Z 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 (Na 2 SO 4 × 10H 2 O) and thenardite (Na 2 SO 4 ) 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 Directory of Open Access Journals: DOAJ Articles Antarctic Victoria Land Microorganisms 10 9 1753 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
extremophiles salt cone mirabilite thenardite prokaryotic diversity supraglacial systems Biology (General) QH301-705.5 |
spellingShingle |
extremophiles salt cone mirabilite thenardite prokaryotic diversity supraglacial systems Biology (General) QH301-705.5 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 |
extremophiles salt cone mirabilite thenardite prokaryotic diversity supraglacial systems Biology (General) QH301-705.5 |
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 (Na 2 SO 4 × 10H 2 O) and thenardite (Na 2 SO 4 ) 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. |
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) |
publisher |
MDPI AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/microorganisms10091753 https://doaj.org/article/7cdaa3a20d054be4b69564f9a21c76d5 |
geographic |
Antarctic Victoria Land |
geographic_facet |
Antarctic Victoria Land |
genre |
Antarc* Antarctic Antarctica Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica Victoria Land |
op_source |
Microorganisms, Vol 10, Iss 1753, p 1753 (2022) |
op_relation |
https://www.mdpi.com/2076-2607/10/9/1753 https://doaj.org/toc/2076-2607 doi:10.3390/microorganisms10091753 2076-2607 https://doaj.org/article/7cdaa3a20d054be4b69564f9a21c76d5 |
op_doi |
https://doi.org/10.3390/microorganisms10091753 |
container_title |
Microorganisms |
container_volume |
10 |
container_issue |
9 |
container_start_page |
1753 |
_version_ |
1766217740903776256 |