Metagenomics untangles potential adaptations of Antarctic endolithic bacteria at the fringe of habitability

Survival and growth strategies of Antarctic endolithic microbes residing in Earth's driest and coldest desert remain virtually unknown. From 109 endolithic microbiomes, 4539 metagenome-assembled genomes were generated, 49.3% of which were novel candidate bacterial species. We present evidence t...

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Bibliographic Details
Main Authors: Coleine, Claudia, Albanese, Davide, Ray, Angelique E, Delgado-Baquerizo, Manuel, Stajich, Jason E, Williams, Timothy J, Larsen, Stefano, Tringe, Susannah, Pennacchio, Christa, Ferrari, Belinda C, Donati, Claudio, Selbmann, Laura
Format: Article in Journal/Newspaper
Language:unknown
Published: eScholarship, University of California 2024
Subjects:
Astronomical Sciences
Physical Sciences
Antarctic Regions
Bacteria
Metagenome
Microbiota
Metagenomics
Antarctica
Extremophiles
Habitability
Adaptation
MAGs
Environmental Sciences
Antarctic
Antarc*
Online Access:https://escholarship.org/uc/item/31s8m753
Description
Summary:Survival and growth strategies of Antarctic endolithic microbes residing in Earth's driest and coldest desert remain virtually unknown. From 109 endolithic microbiomes, 4539 metagenome-assembled genomes were generated, 49.3% of which were novel candidate bacterial species. We present evidence that trace gas oxidation and atmospheric chemosynthesis may be the prevalent strategies supporting metabolic activity and persistence of these ecosystems at the fringe of life and the limits of habitability.

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