Mapping the metagenomic diversity of the multi-kingdom glacier-fed stream microbiome

Michoud, Grégoire ORCID: https://orcid.org/0000-0003-1071-9900; Peter, Hannes ORCID: https://orcid.org/0000-0001-9021-3082; Busi, Susheel Bhanu ORCID: https://orcid.org/0000-0001-7559-3400; Bourquin, Massimo; Kohler, Tyler J.; Geers, Aileen ORCID: https://orcid.org/0000-0002-9162-9423; Ezzat, Leila ORCID: https://orcid.org/0000-0002-4317-6458; Battin, Tom J. ORCID: https://orcid.org/0000-0001-5361-2033. 2025 Mapping the metagenomic diversity of the multi-kingdom glacier-fed stream microbiome. Nature Microbiology, 10 (1). 217-230. 10.1038/s41564-024-01874-9

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Official URL: https://doi.org/10.1038/s41564-024-01874-9

Abstract/Summary

Glacier-fed streams (GFS) feature among Earth’s most extreme aquatic ecosystems marked by pronounced oligotrophy and environmental fluctuations. Microorganisms mainly organize in biofilms within them, but how they cope with such conditions is unknown. Here, leveraging 156 metagenomes from the Vanishing Glaciers project obtained from sediment samples in GFS from 9 mountains ranges, we report thousands of metagenome-assembled genomes (MAGs) encompassing prokaryotes, algae, fungi and viruses, that shed light on biotic interactions within glacier-fed stream biofilms. A total of 2,855 bacterial MAGs were characterized by diverse strategies to exploit inorganic and organic energy sources, in part via functional redundancy and mixotrophy. We show that biofilms probably become more complex and switch from chemoautotrophy to heterotrophy as algal biomass increases in GFS owing to glacier shrinkage. Our MAG compendium sheds light on the success of microbial life in GFS and provides a resource for future research on a microbiome potentially impacted by climate change.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1038/s41564-024-01874-9
UKCEH and CEH Sections/Science Areas:	Environmental Pressures and Responses (2025-)
ISSN:	2058-5276
Additional Information. Not used in RCUK Gateway to Research.:	Publisher link (see Related URLs) provides a read-only full-text copy of the published paper.
Additional Keywords:	microbial ecology, water microbiology
NORA Subject Terms:	Ecology and Environment Biology and Microbiology
Related URLs:	Dataset Dataset Other Other Publisher
Date made live:	07 Jan 2025 14:41 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/538648

Item Type:

Publication - Article

Digital Object Identifier (DOI):

10.1038/s41564-024-01874-9

UKCEH and CEH Sections/Science Areas:

Environmental Pressures and Responses (2025-)

ISSN:

2058-5276

Additional Information. Not used in RCUK Gateway to Research.:

Publisher link (see Related URLs) provides a read-only full-text copy of the published paper.

Additional Keywords:

microbial ecology, water microbiology