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http://hdl.handle.net/2067/49739
Title: | Rock Traits Drive Complex Microbial Communities at the Edge of Life | Authors: | Coleine, Claudia Delgado-Baquerizo, Manuel Zerboni, Andrea Turchetti, Benedetta Buzzini, Pietro Franceschi, Pietro Selbmann, Laura |
Journal: | ASTROBIOLOGY | Issue Date: | 2023 | Abstract: | Antarctic deserts are among the driest and coldest ecosystems of the planet; there, some microbes survive under these extreme conditions inside porous rocks, forming the so-called endolithic communities. Yet the contribution of distinct rock traits to support complex microbial assemblies remains poorly determined. Here, we combined an extensive Antarctic rock survey with rock microbiome sequencing and ecological networks and found that contrasting combinations of microclimatic and rock traits such as thermal inertia, porosity, iron concentration, and quartz cement can help explain the multiple complex microbial assemblies found in Antarctic rocks. Our work highlights the pivotal role of rocky substrate heterogeneity in sustaining contrasting groups of microorganisms, which is essential to understand life at the edge on Earth and for the search for life on other rocky planets such as Mars. |
URI: | http://hdl.handle.net/2067/49739 | ISSN: | 1557-8070 | DOI: | 10.1089/ast.2022.0062 | Rights: | Attribution-NonCommercial-NoDerivatives 4.0 International |
Appears in Collections: | A1. Articolo in rivista |
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Coleine et al., 2023 Astrobiology ast.2022.0062_coleine.pdf | Articolo scientifico su rivista | 889.85 kB | Adobe PDF | Request a copy |
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