A possible unique ecosystem in the endoglacial hypersaline brines in Antarctica.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
05 01 2023
05 01 2023
Historique:
received:
01
09
2022
accepted:
28
12
2022
entrez:
5
1
2023
pubmed:
6
1
2023
medline:
10
1
2023
Statut:
epublish
Résumé
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.
Identifiants
pubmed: 36604573
doi: 10.1038/s41598-022-27219-2
pii: 10.1038/s41598-022-27219-2
pmc: PMC9814585
doi:
Substances chimiques
brine
0
Salts
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
177Informations de copyright
© 2023. The Author(s).
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