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A possible unique ecosystem in the endoglacial hypersaline brines in Antarctica

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 br...

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Autores principales: Guglielmin, M., Azzaro, M., Buzzini, P., Battistel, D., Roman, M., Ponti, S., Turchetti, B., Sannino, C., Borruso, L., Papale, M., Lo Giudice, A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9814585/
https://www.ncbi.nlm.nih.gov/pubmed/36604573
http://dx.doi.org/10.1038/s41598-022-27219-2
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author Guglielmin, M.
Azzaro, M.
Buzzini, P.
Battistel, D.
Roman, M.
Ponti, S.
Turchetti, B.
Sannino, C.
Borruso, L.
Papale, M.
Lo Giudice, A.
author_facet Guglielmin, M.
Azzaro, M.
Buzzini, P.
Battistel, D.
Roman, M.
Ponti, S.
Turchetti, B.
Sannino, C.
Borruso, L.
Papale, M.
Lo Giudice, A.
author_sort Guglielmin, M.
collection PubMed
description 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.
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spelling pubmed-98145852023-01-06 A possible unique ecosystem in the endoglacial hypersaline brines in Antarctica Guglielmin, M. Azzaro, M. Buzzini, P. Battistel, D. Roman, M. Ponti, S. Turchetti, B. Sannino, C. Borruso, L. Papale, M. Lo Giudice, A. Sci Rep Article 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. Nature Publishing Group UK 2023-01-05 /pmc/articles/PMC9814585/ /pubmed/36604573 http://dx.doi.org/10.1038/s41598-022-27219-2 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Guglielmin, M.
Azzaro, M.
Buzzini, P.
Battistel, D.
Roman, M.
Ponti, S.
Turchetti, B.
Sannino, C.
Borruso, L.
Papale, M.
Lo Giudice, A.
A possible unique ecosystem in the endoglacial hypersaline brines in Antarctica
title 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_short A possible unique ecosystem in the endoglacial hypersaline brines in Antarctica
title_sort possible unique ecosystem in the endoglacial hypersaline brines in antarctica
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9814585/
https://www.ncbi.nlm.nih.gov/pubmed/36604573
http://dx.doi.org/10.1038/s41598-022-27219-2
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