Sampling across large-scale geological gradients to study geosphere-biosphere interactions.

Autor:	Giovannelli D; Department of Biology, University of Naples 'Federico II', Naples, Italy.; Institute of Marine Biological Resources and Biotechnologies, National Research Council, CNR-IRBIM, Ancona, Italy.; Department of Marine and Coastal Science, Rutgers University, New Brunswick, NJ, United States.; Marine Chemistry and Geochemistry Department, Woods Hole Oceanographic Institution, MA, United States.; Earth-Life Science Institute, Tokyo Institute of Technology, Tokyo, Japan., Barry PH; Marine Chemistry and Geochemistry Department, Woods Hole Oceanographic Institution, MA, United States., de Moor JM; Observatorio Volcanológico y Sismológico de Costa Rica (OVSICORI), Universidad Nacional, Heredia, Costa Rica.; Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM, United States., Jessen GL; Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile.; Center for Oceanographic Research COPAS COASTAL, Universidad de Concepción, Concepción, Chile., Schrenk MO; Department of Earth and Environmental Sciences, Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI, United States., Lloyd KG; Microbiology Department, University of Tennessee, Knoxville, TN, United States.
Jazyk:	angličtina
Zdroj:	Frontiers in microbiology [Front Microbiol] 2022 Oct 31; Vol. 13, pp. 998133. Date of Electronic Publication: 2022 Oct 31 (Print Publication: 2022).
DOI:	10.3389/fmicb.2022.998133
Abstrakt:	Despite being one of the largest microbial ecosystems on Earth, many basic open questions remain about how life exists and thrives in the deep subsurface biosphere. Much of this ambiguity is due to the fact that it is exceedingly difficult and often prohibitively expensive to directly sample the deep subsurface, requiring elaborate drilling programs or access to deep mines. We propose a sampling approach which involves collection of a large suite of geological, geochemical, and biological data from numerous deeply-sourced seeps-including lower temperature sites-over large spatial scales. This enables research into interactions between the geosphere and the biosphere, expanding the classical local approach to regional or even planetary scales. Understanding the interplay between geology, geochemistry and biology on such scales is essential for building subsurface ecosystem models and extrapolating the ecological and biogeochemical roles of subsurface microbes beyond single site interpretations. This approach has been used successfully across the Central and South American Convergent Margins, and can be applied more broadly to other types of geological regions (i.e., rifting, intraplate volcanic, and hydrothermal settings). Working across geological spatial scales inherently encompasses broad temporal scales (e.g., millions of years of volatile cycling across a convergent margin), providing access to a framework for interpreting evolution and ecosystem functions through deep time and space. We propose that tectonic interactions are fundamental to maintaining planetary habitability through feedbacks that stabilize the ecosphere, and deep biosphere studies are fundamental to understanding geo-bio feedbacks on these processes on a global scale. Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. (Copyright © 2022 Giovannelli, Barry, de Moor, Jessen, Schrenk and Lloyd.)
Databáze:	MEDLINE
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