Biomarker preservation in Antarctic sandstone after space exposure outside the International Space Station
Cryptoendolithic microbial communities, discovered in the extremely cold, hyper-arid McMurdo Dry Valleys of Antarctica (Friedmann 1982), the most similar terrestrial environments to Mars surface (Wynn-Williams and Edwards 2000; Onofri et al., 2004), have been considered as a candidate in supporting...
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ftdlr:oai:elib.dlr.de:130002 2024-05-19T07:29:53+00:00 Biomarker preservation in Antarctic sandstone after space exposure outside the International Space Station Cassaro, Alessia Pacelli, Claudia Gevi, Federica Selbmann, Laura Zucconi, L. Baque, Mickael Timperio, Annamaria Böttger, Ute de Vera, Jean Pierre Paul Onofri, Silvano 2019 application/pdf https://elib.dlr.de/130002/ https://elib.dlr.de/130002/1/282815.pdf en eng https://elib.dlr.de/130002/1/282815.pdf Cassaro, Alessia und Pacelli, Claudia und Gevi, Federica und Selbmann, Laura und Zucconi, L. und Baque, Mickael und Timperio, Annamaria und Böttger, Ute und de Vera, Jean Pierre Paul und Onofri, Silvano (2019) Biomarker preservation in Antarctic sandstone after space exposure outside the International Space Station. European Astrobiology Network Association (EANA) 2019, 2019-09-03 - 2019-09-06, Orléans, France. Terahertz- und Laserspektroskopie Leitungsbereich PF Konferenzbeitrag NonPeerReviewed 2019 ftdlr 2024-04-25T00:51:33Z Cryptoendolithic microbial communities, discovered in the extremely cold, hyper-arid McMurdo Dry Valleys of Antarctica (Friedmann 1982), the most similar terrestrial environments to Mars surface (Wynn-Williams and Edwards 2000; Onofri et al., 2004), have been considered as a candidate in supporting the search of life in Mars exploration. In such harsh conditions, microorganisms grow in airspaces among mineral grains and show some adaptations, as the accumulation of protective pigments and compatible solutes, assuring their survival. In the frame of the Lichen and Fungi experiment (LIFE, P.I. Silvano Onofri; Onofri et al. 2012, 2015), small samples of these communities, were exposed to space, in the EXPOSE-E facility for 1.5 years, with an exposition to vacuum (10-7 to 10-4 Pa) (Horneck et al., 2010), galactic cosmic radiation (≤190mGy) (Berger et al., 2012), and the full spectrum of solar extraterrestrial electromagnetic radiation to which cryptoendolithic microorganisms demonstrated to survive (Scalzi et al., 2012). The search for trace of extant or extinct life is one of the main goals of the future space mission beyond Earth. The future rover missions ExoMars 2020 (ESA-Roscomos) and Mars 2020 (NASA) are exploring chemical and biological indicators of life, called biomarkers. A good biomarker must have a biogenic origin and thus must unequivocally be identified as possible trace of life. The detection of biomarkers on Mars was the aim of BIOMEX (BIOlogy and Mars Experiment) project, in which has been investigated the alteration of different biomarkers, after exposure to space and Mars-like conditions outside the International Space Station. In this contest, the aim of this work was to characterize fungal biomarkers from these exposed rock samples, with different approaches: i) Raman spectroscopy and InfraRed analyses, which has been considered excellent tools for the detection of inorganic and organic molecules, such as microbial pigments and ii) -omics approaches, as lipidomic and metabolomic techniques, ... Conference Object Antarc* Antarctic Antarctica McMurdo Dry Valleys German Aerospace Center: elib - DLR electronic library |
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Open Polar |
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German Aerospace Center: elib - DLR electronic library |
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language |
English |
topic |
Terahertz- und Laserspektroskopie Leitungsbereich PF |
spellingShingle |
Terahertz- und Laserspektroskopie Leitungsbereich PF Cassaro, Alessia Pacelli, Claudia Gevi, Federica Selbmann, Laura Zucconi, L. Baque, Mickael Timperio, Annamaria Böttger, Ute de Vera, Jean Pierre Paul Onofri, Silvano Biomarker preservation in Antarctic sandstone after space exposure outside the International Space Station |
topic_facet |
Terahertz- und Laserspektroskopie Leitungsbereich PF |
description |
Cryptoendolithic microbial communities, discovered in the extremely cold, hyper-arid McMurdo Dry Valleys of Antarctica (Friedmann 1982), the most similar terrestrial environments to Mars surface (Wynn-Williams and Edwards 2000; Onofri et al., 2004), have been considered as a candidate in supporting the search of life in Mars exploration. In such harsh conditions, microorganisms grow in airspaces among mineral grains and show some adaptations, as the accumulation of protective pigments and compatible solutes, assuring their survival. In the frame of the Lichen and Fungi experiment (LIFE, P.I. Silvano Onofri; Onofri et al. 2012, 2015), small samples of these communities, were exposed to space, in the EXPOSE-E facility for 1.5 years, with an exposition to vacuum (10-7 to 10-4 Pa) (Horneck et al., 2010), galactic cosmic radiation (≤190mGy) (Berger et al., 2012), and the full spectrum of solar extraterrestrial electromagnetic radiation to which cryptoendolithic microorganisms demonstrated to survive (Scalzi et al., 2012). The search for trace of extant or extinct life is one of the main goals of the future space mission beyond Earth. The future rover missions ExoMars 2020 (ESA-Roscomos) and Mars 2020 (NASA) are exploring chemical and biological indicators of life, called biomarkers. A good biomarker must have a biogenic origin and thus must unequivocally be identified as possible trace of life. The detection of biomarkers on Mars was the aim of BIOMEX (BIOlogy and Mars Experiment) project, in which has been investigated the alteration of different biomarkers, after exposure to space and Mars-like conditions outside the International Space Station. In this contest, the aim of this work was to characterize fungal biomarkers from these exposed rock samples, with different approaches: i) Raman spectroscopy and InfraRed analyses, which has been considered excellent tools for the detection of inorganic and organic molecules, such as microbial pigments and ii) -omics approaches, as lipidomic and metabolomic techniques, ... |
format |
Conference Object |
author |
Cassaro, Alessia Pacelli, Claudia Gevi, Federica Selbmann, Laura Zucconi, L. Baque, Mickael Timperio, Annamaria Böttger, Ute de Vera, Jean Pierre Paul Onofri, Silvano |
author_facet |
Cassaro, Alessia Pacelli, Claudia Gevi, Federica Selbmann, Laura Zucconi, L. Baque, Mickael Timperio, Annamaria Böttger, Ute de Vera, Jean Pierre Paul Onofri, Silvano |
author_sort |
Cassaro, Alessia |
title |
Biomarker preservation in Antarctic sandstone after space exposure outside the International Space Station |
title_short |
Biomarker preservation in Antarctic sandstone after space exposure outside the International Space Station |
title_full |
Biomarker preservation in Antarctic sandstone after space exposure outside the International Space Station |
title_fullStr |
Biomarker preservation in Antarctic sandstone after space exposure outside the International Space Station |
title_full_unstemmed |
Biomarker preservation in Antarctic sandstone after space exposure outside the International Space Station |
title_sort |
biomarker preservation in antarctic sandstone after space exposure outside the international space station |
publishDate |
2019 |
url |
https://elib.dlr.de/130002/ https://elib.dlr.de/130002/1/282815.pdf |
genre |
Antarc* Antarctic Antarctica McMurdo Dry Valleys |
genre_facet |
Antarc* Antarctic Antarctica McMurdo Dry Valleys |
op_relation |
https://elib.dlr.de/130002/1/282815.pdf Cassaro, Alessia und Pacelli, Claudia und Gevi, Federica und Selbmann, Laura und Zucconi, L. und Baque, Mickael und Timperio, Annamaria und Böttger, Ute und de Vera, Jean Pierre Paul und Onofri, Silvano (2019) Biomarker preservation in Antarctic sandstone after space exposure outside the International Space Station. European Astrobiology Network Association (EANA) 2019, 2019-09-03 - 2019-09-06, Orléans, France. |
_version_ |
1799482132945436672 |