The microbiome of cryospheric ecosystems

Massimo Bourquin (), Susheel Bhanu Busi, Stilianos Fodelianakis, Hannes Peter, Alex Washburne, Tyler J. Kohler, Leïla Ezzat, Grégoire Michoud, Paul Wilmes and Tom J. Battin ()
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Massimo Bourquin: École Polytechnique Fédérale de Lausanne, EPFL
Susheel Bhanu Busi: University of Luxembourg
Stilianos Fodelianakis: École Polytechnique Fédérale de Lausanne, EPFL
Hannes Peter: École Polytechnique Fédérale de Lausanne, EPFL
Alex Washburne: Selva Analytics LLC
Tyler J. Kohler: École Polytechnique Fédérale de Lausanne, EPFL
Leïla Ezzat: École Polytechnique Fédérale de Lausanne, EPFL
Grégoire Michoud: École Polytechnique Fédérale de Lausanne, EPFL
Paul Wilmes: University of Luxembourg
Tom J. Battin: École Polytechnique Fédérale de Lausanne, EPFL

Nature Communications, 2022, vol. 13, issue 1, 1-9

Abstract: Abstract The melting of the cryosphere is among the most conspicuous consequences of climate change, with impacts on microbial life and related biogeochemistry. However, we are missing a systematic understanding of microbiome structure and function across cryospheric ecosystems. Here, we present a global inventory of the microbiome from snow, ice, permafrost soils, and both coastal and freshwater ecosystems under glacier influence. Combining phylogenetic and taxonomic approaches, we find that these cryospheric ecosystems, despite their particularities, share a microbiome with representatives across the bacterial tree of life and apparent signatures of early and constrained radiation. In addition, we use metagenomic analyses to define the genetic repertoire of cryospheric bacteria. Our work provides a reference resource for future studies on climate change microbiology.

Date: 2022
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DOI: 10.1038/s41467-022-30816-4

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