Metabolism of CO and H2 by pioneer bacteria in volcanic soils and the phyllosphere

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Fantom, Nicola, Dawson, Robin A., Prondvai, Edina, Constant, Philippe, King, Gary M., Schäfer, Hendrik and Hernández, Marcela (2025) Metabolism of CO and H2 by pioneer bacteria in volcanic soils and the phyllosphere. The ISME Journal, 19 (1). ISSN 1751-7362

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Abstract

Trace gas degradation is a widespread metabolic adaptation in microbial communities, driving chemosynthesis and providing auxiliary energy that enhances persistence during nutrient starvation. In particular, carbon monoxide and hydrogen degradation can be of crucial importance for pioneering microbial communities colonising new, oligotrophic environmental niches, such as fresh volcanic deposits or the aerial interface of the phyllosphere. After volcanic eruptions, trace gas metabolism helps pioneer colonisers to initiate soil formation in ash deposits and on recently solidified lava, a vital ecosystem service. Similarly, in the phyllosphere, bacteria colonising newly emerging leaves and shoots, and/or persisting on the oligotrophic surface of plants, also benefit from trace gas oxidation and, given the global size of this habitat, likely constitute a significant sink for these trace gases affecting atmospheric chemistry. Herein, we review the current state of knowledge surrounding microbial oxidation of carbon monoxide and hydrogen and discuss how this may contribute to niche colonisation in oligotrophic ecosystems.

Item Type:	Article
Additional Information:	Data availability: No data were used for the research described in the article. Funding information: NF was supported by NERC ARIES-DTP studentship (NE/S007334/1). RAD was supported by Royal Society Research Fellows Enhanced grant awarded to MH (RF\ERE\231066). EP was supported by a NERC CENTA-DTP studentship (NE/S007350/1). HS was supported by a UK-NERC project grant (NE/X001245/1). MH was supported by a Royal Society Dorothy Hodgkin Research Fellowship (DHF\R1\211076).
Uncontrolled Keywords:	carbon monoxide,hydrogen,phyllosphere,soil microbes,volcano,ecology, evolution, behavior and systematics,microbiology ,/dk/atira/pure/subjectarea/asjc/1100/1105
Faculty \ School:	Faculty of Science > School of Biological Sciences
UEA Research Groups:	Faculty of Science > Research Groups > Molecular Microbiology
Related URLs:	http://www.scopus.com/inward/record.url?... https://academic.oup.com/ismej/article/d...
Depositing User:	LivePure Connector
Date Deposited:	29 Apr 2025 14:32
Last Modified:	12 May 2025 13:30
URI:	https://ueaeprints.uea.ac.uk/id/eprint/99137
DOI:	10.1093/ismejo/wraf053

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