Role of subterranean microbiota in the carbon cycle and greenhouse gas dynamics
Subterranean ecosystems play an active role in the global carbon cycle, yet only a few studies using indirect methods have focused on the role of the cave microbiota in this critical cycle. Here we present pioneering research based on in situ real-time monitoring of CO2 and CH4 diffusive fluxes and concurrent δ13C geochemical tracing in caves, combined with 16S microbiome analysis. Our findings show that cave sediments are promoting continuous CH4 consumption from cave atmosphere, resulting in a significant removal of 65% to 90%. This research reveals the most effective taxa and metabolic pathways in consumption and uptake of greenhouse gases. Methanotrophic bacteria were the most effective group involved in CH4 consumption, namely within the families Methylomonaceae, Methylomirabilaceae and Methylacidiphilaceae. In addition, Crossiella and Nitrosococcaceae wb1-P19 could be one of the main responsible of CO2 uptake, which occurs via the Calvin-Benson-Bassham cycle and reversible hydration of CO2. Thus, syntrophic relationships exist between Crossiella and nitrifying bacteria that capture CO2, consume inorganic N produced by heterotrophic ammonification in the surface of sediments, and induce moonmilk formation. Moonmilk is found as the most evolved phase of the microbial processes in cave sediments that fixes CO2 as calcite and intensifies CH4 oxidation. From an ecological perspective, cave sediments act qualitatively as soils, providing fundamental ecosystem services (e.g. nutrient cycling and carbon sequestration) with direct influence on greenhouse gas emissions.
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Format: | artículo biblioteca |
Language: | English |
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Elsevier
2022-07-20
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Subjects: | Microbial activity, Subterranean ecosystems, Greenhouse gas fluxes, Moonmilk, Biomineralization, |
Online Access: | http://hdl.handle.net/10261/267329 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100004837 |
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dig-irnas-es-10261-2673292022-04-21T01:51:37Z Role of subterranean microbiota in the carbon cycle and greenhouse gas dynamics Martín-Pozas, Tamara Cuezva, Soledad Fernández-Cortés, Ángel Cañaveras, Juan Carlos Benavente, David Jurado, Valme Sáiz-Jiménez, Cesáreo Janssens, Ivan Seijas, Naomí Sánchez Moral, Sergio Ministerio de Ciencia e Innovación (España) European Commission Microbial activity Subterranean ecosystems Greenhouse gas fluxes Moonmilk Biomineralization Subterranean ecosystems play an active role in the global carbon cycle, yet only a few studies using indirect methods have focused on the role of the cave microbiota in this critical cycle. Here we present pioneering research based on in situ real-time monitoring of CO2 and CH4 diffusive fluxes and concurrent δ13C geochemical tracing in caves, combined with 16S microbiome analysis. Our findings show that cave sediments are promoting continuous CH4 consumption from cave atmosphere, resulting in a significant removal of 65% to 90%. This research reveals the most effective taxa and metabolic pathways in consumption and uptake of greenhouse gases. Methanotrophic bacteria were the most effective group involved in CH4 consumption, namely within the families Methylomonaceae, Methylomirabilaceae and Methylacidiphilaceae. In addition, Crossiella and Nitrosococcaceae wb1-P19 could be one of the main responsible of CO2 uptake, which occurs via the Calvin-Benson-Bassham cycle and reversible hydration of CO2. Thus, syntrophic relationships exist between Crossiella and nitrifying bacteria that capture CO2, consume inorganic N produced by heterotrophic ammonification in the surface of sediments, and induce moonmilk formation. Moonmilk is found as the most evolved phase of the microbial processes in cave sediments that fixes CO2 as calcite and intensifies CH4 oxidation. From an ecological perspective, cave sediments act qualitatively as soils, providing fundamental ecosystem services (e.g. nutrient cycling and carbon sequestration) with direct influence on greenhouse gas emissions. This work was supported by the Spanish Ministry of Science, Innovation through project PID2019-110603RB-I00, MCIN/AEI/FEDER UE/10.13039/501100011033 and with collaboration of projects RTI2018-099052-B-I00 and PID2020-114978GB-I00. This research has also received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 844535 — MIFLUKE. Peer reviewed 2022-04-20T11:40:18Z 2022-04-20T11:40:18Z 2022-07-20 artículo http://purl.org/coar/resource_type/c_6501 Science of the Total Environment 831: 154921 (2022) 0048-9697 http://hdl.handle.net/10261/267329 10.1016/j.scitotenv.2022.154921 1879-1026 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100004837 en #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-110603RB-I00/ES/CONTROL AMBIENTAL DE LA ACTIVIDAD MICROBIANA EN ECOSISTEMAS NATURALES SUBTERRANEOS: IMPLICACIONES EN FLUJOS DE GEIS, DETECCION DE BIOSEÑALES Y ESTRATEGIAS DE CONSERVACION/ info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-099052-B-I00/ES/CUANTIFICACION Y MODELIZACION DEL TRANSPORTE DE RADON EN SUELOS. VALORACION DE SU RIESGO POTENCIAL Y USO COMO TRAZADOR GEOQUIMICO NATURAL/ info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-114978GB-I00/ES/GEOQUIMICA AMBIENTAL Y GEOMICROBIOLOGIA DE LAS CUEVAS DE YESOS DE SORBAS, ALMERIA Y DE ITALIA/ info:eu-repo/grantAgreement/EC/H2020/844535 Publisher's version Sí open Elsevier |
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Microbial activity Subterranean ecosystems Greenhouse gas fluxes Moonmilk Biomineralization Microbial activity Subterranean ecosystems Greenhouse gas fluxes Moonmilk Biomineralization |
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Microbial activity Subterranean ecosystems Greenhouse gas fluxes Moonmilk Biomineralization Microbial activity Subterranean ecosystems Greenhouse gas fluxes Moonmilk Biomineralization Martín-Pozas, Tamara Cuezva, Soledad Fernández-Cortés, Ángel Cañaveras, Juan Carlos Benavente, David Jurado, Valme Sáiz-Jiménez, Cesáreo Janssens, Ivan Seijas, Naomí Sánchez Moral, Sergio Role of subterranean microbiota in the carbon cycle and greenhouse gas dynamics |
description |
Subterranean ecosystems play an active role in the global carbon cycle, yet only a few studies using indirect methods have focused on the role of the cave microbiota in this critical cycle. Here we present pioneering research based on in situ real-time monitoring of CO2 and CH4 diffusive fluxes and concurrent δ13C geochemical tracing in caves, combined with 16S microbiome analysis. Our findings show that cave sediments are promoting continuous CH4 consumption from cave atmosphere, resulting in a significant removal of 65% to 90%. This research reveals the most effective taxa and metabolic pathways in consumption and uptake of greenhouse gases. Methanotrophic bacteria were the most effective group involved in CH4 consumption, namely within the families Methylomonaceae, Methylomirabilaceae and Methylacidiphilaceae. In addition, Crossiella and Nitrosococcaceae wb1-P19 could be one of the main responsible of CO2 uptake, which occurs via the Calvin-Benson-Bassham cycle and reversible hydration of CO2. Thus, syntrophic relationships exist between Crossiella and nitrifying bacteria that capture CO2, consume inorganic N produced by heterotrophic ammonification in the surface of sediments, and induce moonmilk formation. Moonmilk is found as the most evolved phase of the microbial processes in cave sediments that fixes CO2 as calcite and intensifies CH4 oxidation. From an ecological perspective, cave sediments act qualitatively as soils, providing fundamental ecosystem services (e.g. nutrient cycling and carbon sequestration) with direct influence on greenhouse gas emissions. |
author2 |
Ministerio de Ciencia e Innovación (España) |
author_facet |
Ministerio de Ciencia e Innovación (España) Martín-Pozas, Tamara Cuezva, Soledad Fernández-Cortés, Ángel Cañaveras, Juan Carlos Benavente, David Jurado, Valme Sáiz-Jiménez, Cesáreo Janssens, Ivan Seijas, Naomí Sánchez Moral, Sergio |
format |
artículo |
topic_facet |
Microbial activity Subterranean ecosystems Greenhouse gas fluxes Moonmilk Biomineralization |
author |
Martín-Pozas, Tamara Cuezva, Soledad Fernández-Cortés, Ángel Cañaveras, Juan Carlos Benavente, David Jurado, Valme Sáiz-Jiménez, Cesáreo Janssens, Ivan Seijas, Naomí Sánchez Moral, Sergio |
author_sort |
Martín-Pozas, Tamara |
title |
Role of subterranean microbiota in the carbon cycle and greenhouse gas dynamics |
title_short |
Role of subterranean microbiota in the carbon cycle and greenhouse gas dynamics |
title_full |
Role of subterranean microbiota in the carbon cycle and greenhouse gas dynamics |
title_fullStr |
Role of subterranean microbiota in the carbon cycle and greenhouse gas dynamics |
title_full_unstemmed |
Role of subterranean microbiota in the carbon cycle and greenhouse gas dynamics |
title_sort |
role of subterranean microbiota in the carbon cycle and greenhouse gas dynamics |
publisher |
Elsevier |
publishDate |
2022-07-20 |
url |
http://hdl.handle.net/10261/267329 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100004837 |
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