Fingerprinting molecular and isotopic biosignatures on different hydrothermal scenarios of Iceland, an acidic and sulfur-rich Mars analog

Detecting signs of potential extant/extinct life on Mars is challenging because the presence of organics on that planet is expected to be very low and most likely linked to radiation-protected refugia and/or preservative strategies (e.g., organo-mineral complexes). With scarcity of organics, account...

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Autores: Sánchez García, Laura, Carrizo, D., Molina, A., Muñoz Iglesias, V., Lezcano, M. A., Fernández Sampedro, M., Parro, Víctor, Prieto-Ballesteros, Olga
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Institución:Instituto Nacional de Técnica Aeroespacial (INTA)
Repositorio:DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial
OAI Identifier:oai:digital.inta.es:20.500.12666/424
Acceso en línea:https://www.nature.com/articles/s41598-020-78240-2
http://hdl.handle.net/20.500.12666/424
Access Level:acceso abierto
Palabra clave:Mars Carters
MSL
Mars
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network_acronym_str ES
network_name_str España
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dc.title.none.fl_str_mv Fingerprinting molecular and isotopic biosignatures on different hydrothermal scenarios of Iceland, an acidic and sulfur-rich Mars analog
title Fingerprinting molecular and isotopic biosignatures on different hydrothermal scenarios of Iceland, an acidic and sulfur-rich Mars analog
spellingShingle Fingerprinting molecular and isotopic biosignatures on different hydrothermal scenarios of Iceland, an acidic and sulfur-rich Mars analog
Sánchez García, Laura
Mars Carters
MSL
Mars
title_short Fingerprinting molecular and isotopic biosignatures on different hydrothermal scenarios of Iceland, an acidic and sulfur-rich Mars analog
title_full Fingerprinting molecular and isotopic biosignatures on different hydrothermal scenarios of Iceland, an acidic and sulfur-rich Mars analog
title_fullStr Fingerprinting molecular and isotopic biosignatures on different hydrothermal scenarios of Iceland, an acidic and sulfur-rich Mars analog
title_full_unstemmed Fingerprinting molecular and isotopic biosignatures on different hydrothermal scenarios of Iceland, an acidic and sulfur-rich Mars analog
title_sort Fingerprinting molecular and isotopic biosignatures on different hydrothermal scenarios of Iceland, an acidic and sulfur-rich Mars analog
dc.creator.none.fl_str_mv Sánchez García, Laura
Carrizo, D.
Molina, A.
Muñoz Iglesias, V.
Lezcano, M. A.
Fernández Sampedro, M.
Parro, Víctor
Prieto-Ballesteros, Olga
author Sánchez García, Laura
author_facet Sánchez García, Laura
Carrizo, D.
Molina, A.
Muñoz Iglesias, V.
Lezcano, M. A.
Fernández Sampedro, M.
Parro, Víctor
Prieto-Ballesteros, Olga
author_role author
author2 Carrizo, D.
Molina, A.
Muñoz Iglesias, V.
Lezcano, M. A.
Fernández Sampedro, M.
Parro, Víctor
Prieto-Ballesteros, Olga
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Unidad de Excelencia Científica María de Maeztu Centro de Astrobiología del Instituto Nacional de Técnica Aeroespacial y CSIC, MDM-2017-0737
European Research Council (ERC)
Ministerio de Economía y Competitividad (MINECO)
Agencia Estatal de Investigación (AEI)
dc.subject.none.fl_str_mv Mars Carters
MSL
Mars
topic Mars Carters
MSL
Mars
description Detecting signs of potential extant/extinct life on Mars is challenging because the presence of organics on that planet is expected to be very low and most likely linked to radiation-protected refugia and/or preservative strategies (e.g., organo-mineral complexes). With scarcity of organics, accounting for biomineralization and potential relationships between biomarkers, mineralogy, and geochemistry is key in the search for extraterrestrial life. Here we explored microbial fingerprints and their associated mineralogy in Icelandic hydrothermal systems analog to Mars (i.e., high sulfur content, or amorphous silica), to identify potentially habitable locations on that planet. The mineralogical assemblage of four hydrothermal substrates (hot springs biofilms, mud pots, and steaming and inactive fumaroles) was analyzed concerning the distribution of biomarkers. Molecular and isotopic composition of lipids revealed quantitative and compositional differences apparently impacted by surface geothermal alteration and environmental factors. pH and water showed an influence (i.e., greatest biomass in circumneutral settings with highest supply and turnover of water), whereas temperature conditioned the mineralogy that supported specific microbial metabolisms related with sulfur. Raman spectra suggested the possible coexistence of abiotic and biomediated sources of minerals (i.e., sulfur or hematite). These findings may help to interpret future Raman or GC–MS signals in forthcoming Martian missions.
publishDate 2020
dc.date.none.fl_str_mv 2020
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://www.nature.com/articles/s41598-020-78240-2
http://hdl.handle.net/20.500.12666/424
url https://www.nature.com/articles/s41598-020-78240-2
http://hdl.handle.net/20.500.12666/424
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv The physicochemical nature of water on early Mars
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ESP2017-89053-C2-1-P
RYC2018-023943-I
RYC-2014-19446
DETECCION DE SEÑALES DE VIDA EN EXPLORACION PLANETARIA
ESTRATEGIAS DE EXPLORACION ASTROBIOLOGICA DE LUNAS HELADAS CON OCEANOS: SIMULACIONES EXPERIMENTALES DE APOYO A LAS MISIONES JUICE, EUROPA CLIPPER Y EUROPA LANDER
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-094368-B-I00
info:eu-repo/grantAgreement/MINECO//RYC-2014-19446
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RYC2018-023943-I
info:eu-repo/grantAgreement/EC/H2020/818602
dc.rights.none.fl_str_mv Attribution-NonCommercial-NoDerivatives 4.0 International
Copyright © 2020, The Author(s)
https://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivatives 4.0 International
Copyright © 2020, The Author(s)
https://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
dc.source.none.fl_str_mv reponame:DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial
instname:Instituto Nacional de Técnica Aeroespacial (INTA)
instname_str Instituto Nacional de Técnica Aeroespacial (INTA)
reponame_str DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial
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spelling Fingerprinting molecular and isotopic biosignatures on different hydrothermal scenarios of Iceland, an acidic and sulfur-rich Mars analogSánchez García, LauraCarrizo, D.Molina, A.Muñoz Iglesias, V.Lezcano, M. A.Fernández Sampedro, M.Parro, VíctorPrieto-Ballesteros, OlgaMars CartersMSLMarsDetecting signs of potential extant/extinct life on Mars is challenging because the presence of organics on that planet is expected to be very low and most likely linked to radiation-protected refugia and/or preservative strategies (e.g., organo-mineral complexes). With scarcity of organics, accounting for biomineralization and potential relationships between biomarkers, mineralogy, and geochemistry is key in the search for extraterrestrial life. Here we explored microbial fingerprints and their associated mineralogy in Icelandic hydrothermal systems analog to Mars (i.e., high sulfur content, or amorphous silica), to identify potentially habitable locations on that planet. The mineralogical assemblage of four hydrothermal substrates (hot springs biofilms, mud pots, and steaming and inactive fumaroles) was analyzed concerning the distribution of biomarkers. Molecular and isotopic composition of lipids revealed quantitative and compositional differences apparently impacted by surface geothermal alteration and environmental factors. pH and water showed an influence (i.e., greatest biomass in circumneutral settings with highest supply and turnover of water), whereas temperature conditioned the mineralogy that supported specific microbial metabolisms related with sulfur. Raman spectra suggested the possible coexistence of abiotic and biomediated sources of minerals (i.e., sulfur or hematite). These findings may help to interpret future Raman or GC–MS signals in forthcoming Martian missions.This work is the result of the research and field campaign funded by two Europlanet projects with Grant Agreement Nos. 17-EPN3-004 and 16-EPN2-064. The authors thank Viggó Þór Marteinsson and Rene Groben from Matís (Reykjavik, Iceland) for their formation and logistics assistance during the field campaign. This work was funded by the Spanish Ministry of Science and Innovation and Fondo Europeo de Desarrollo Regional (MICINN/FEDER) Grants No. RYC-2014-19446 (L.S.-G.); RYC2018-023943-I (D.C.); ERC CoG no. 818602 (A.M.); ESP2017-89053-C2-1-P (V.M.-I. and O.P.-B.); FJC2018-037246-I (M.A.L.); RTI2018-094368-B-I00 (V.P.); and the Spanish State Research Agency (AEI) Grant No. MDM-2017-0737 Unidad de Excelencia “María de Maeztu”—Centro de Astrobiología (CSIC-INTA).Springer NatureUnidad de Excelencia Científica María de Maeztu Centro de Astrobiología del Instituto Nacional de Técnica Aeroespacial y CSIC, MDM-2017-0737European Research Council (ERC)Ministerio de Economía y Competitividad (MINECO)Agencia Estatal de Investigación (AEI)202120212020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501application/pdfhttps://www.nature.com/articles/s41598-020-78240-2http://hdl.handle.net/20.500.12666/424reponame:DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacialinstname:Instituto Nacional de Técnica Aeroespacial (INTA)InglésThe physicochemical nature of water on early Marsinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ESP2017-89053-C2-1-PRYC2018-023943-IRYC-2014-19446DETECCION DE SEÑALES DE VIDA EN EXPLORACION PLANETARIAESTRATEGIAS DE EXPLORACION ASTROBIOLOGICA DE LUNAS HELADAS CON OCEANOS: SIMULACIONES EXPERIMENTALES DE APOYO A LAS MISIONES JUICE, EUROPA CLIPPER Y EUROPA LANDERinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-094368-B-I00info:eu-repo/grantAgreement/MINECO//RYC-2014-19446info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RYC2018-023943-Iinfo:eu-repo/grantAgreement/EC/H2020/818602Attribution-NonCommercial-NoDerivatives 4.0 InternationalCopyright © 2020, The Author(s)https://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:digital.inta.es:20.500.12666/4242026-06-23T12:46:37Z
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