A possible unique ecosystem in the endoglacial hypersaline brines in Antarctica
Abstract Here, we present the results related to a new unique terrestrial ecosystem found in an englacial hypersaline brine found in Northern Victoria Land (Antarctica). Both the geochemistry and microbial (prokaryotic and fungal) diversity revealed an unicity with respect to all the other known Ant...
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2023
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ftdoajarticles:oai:doaj.org/article:7c06e5d3fdcc4a4abdbf49d9caac0c17 2023-05-15T13:38:07+02:00 A possible unique ecosystem in the endoglacial hypersaline brines in Antarctica M. Guglielmin M. Azzaro P. Buzzini D. Battistel M. Roman S. Ponti B. Turchetti C. Sannino L. Borruso M. Papale A. Lo Giudice 2023-01-01T00:00:00Z https://doi.org/10.1038/s41598-022-27219-2 https://doaj.org/article/7c06e5d3fdcc4a4abdbf49d9caac0c17 EN eng Nature Portfolio https://doi.org/10.1038/s41598-022-27219-2 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-022-27219-2 2045-2322 https://doaj.org/article/7c06e5d3fdcc4a4abdbf49d9caac0c17 Scientific Reports, Vol 13, Iss 1, Pp 1-9 (2023) Medicine R Science Q article 2023 ftdoajarticles https://doi.org/10.1038/s41598-022-27219-2 2023-01-15T01:29:39Z Abstract Here, we present the results related to a new unique terrestrial ecosystem found in an englacial hypersaline brine found in Northern Victoria Land (Antarctica). Both the geochemistry and microbial (prokaryotic and fungal) diversity revealed an unicity with respect to all the other known Antarctic brines and suggested a probable ancient origin mainly due a progressive cryoconcentration of seawater. The prokaryotic community presented some peculiarities, such as the occurrence of sequences of Patescibacteria (which can thrive in nutrient-limited water environments) or few Spirochaeta, and the presence of archaeal sequences of Methanomicrobia closely related to Methanoculleus, a methanogen commonly detected in marine and estuarine environments. The high percentage (35%) of unassigned fungal taxa suggested the presence of a high degree of undiscovered diversity within a structured fungal community (including both yeast and filamentous life forms) and reinforce the hypothesis of a high degree of biological uniqueness of the habitat under study. Article in Journal/Newspaper Antarc* Antarctic Antarctica Victoria Land Directory of Open Access Journals: DOAJ Articles Antarctic Victoria Land Scientific Reports 13 1 |
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Directory of Open Access Journals: DOAJ Articles |
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English |
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Medicine R Science Q |
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Medicine R Science Q M. Guglielmin M. Azzaro P. Buzzini D. Battistel M. Roman S. Ponti B. Turchetti C. Sannino L. Borruso M. Papale A. Lo Giudice A possible unique ecosystem in the endoglacial hypersaline brines in Antarctica |
topic_facet |
Medicine R Science Q |
description |
Abstract Here, we present the results related to a new unique terrestrial ecosystem found in an englacial hypersaline brine found in Northern Victoria Land (Antarctica). Both the geochemistry and microbial (prokaryotic and fungal) diversity revealed an unicity with respect to all the other known Antarctic brines and suggested a probable ancient origin mainly due a progressive cryoconcentration of seawater. The prokaryotic community presented some peculiarities, such as the occurrence of sequences of Patescibacteria (which can thrive in nutrient-limited water environments) or few Spirochaeta, and the presence of archaeal sequences of Methanomicrobia closely related to Methanoculleus, a methanogen commonly detected in marine and estuarine environments. The high percentage (35%) of unassigned fungal taxa suggested the presence of a high degree of undiscovered diversity within a structured fungal community (including both yeast and filamentous life forms) and reinforce the hypothesis of a high degree of biological uniqueness of the habitat under study. |
format |
Article in Journal/Newspaper |
author |
M. Guglielmin M. Azzaro P. Buzzini D. Battistel M. Roman S. Ponti B. Turchetti C. Sannino L. Borruso M. Papale A. Lo Giudice |
author_facet |
M. Guglielmin M. Azzaro P. Buzzini D. Battistel M. Roman S. Ponti B. Turchetti C. Sannino L. Borruso M. Papale A. Lo Giudice |
author_sort |
M. Guglielmin |
title |
A possible unique ecosystem in the endoglacial hypersaline brines in Antarctica |
title_short |
A possible unique ecosystem in the endoglacial hypersaline brines in Antarctica |
title_full |
A possible unique ecosystem in the endoglacial hypersaline brines in Antarctica |
title_fullStr |
A possible unique ecosystem in the endoglacial hypersaline brines in Antarctica |
title_full_unstemmed |
A possible unique ecosystem in the endoglacial hypersaline brines in Antarctica |
title_sort |
possible unique ecosystem in the endoglacial hypersaline brines in antarctica |
publisher |
Nature Portfolio |
publishDate |
2023 |
url |
https://doi.org/10.1038/s41598-022-27219-2 https://doaj.org/article/7c06e5d3fdcc4a4abdbf49d9caac0c17 |
geographic |
Antarctic Victoria Land |
geographic_facet |
Antarctic Victoria Land |
genre |
Antarc* Antarctic Antarctica Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica Victoria Land |
op_source |
Scientific Reports, Vol 13, Iss 1, Pp 1-9 (2023) |
op_relation |
https://doi.org/10.1038/s41598-022-27219-2 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-022-27219-2 2045-2322 https://doaj.org/article/7c06e5d3fdcc4a4abdbf49d9caac0c17 |
op_doi |
https://doi.org/10.1038/s41598-022-27219-2 |
container_title |
Scientific Reports |
container_volume |
13 |
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1 |
_version_ |
1766101641348513792 |