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Survival, DNA, and Ultrastructural Integrity of a Cryptoendolithic Antarctic Fungus in Mars and Lunar Rock Analogues Exposed Outside the International Space Station

Onofri, Silvano and Selbmann, Laura and Pacelli, Claudia and Zucconi, Laura and Rabbow, Elke and de Vera, Jean-Pierre (2018) Survival, DNA, and Ultrastructural Integrity of a Cryptoendolithic Antarctic Fungus in Mars and Lunar Rock Analogues Exposed Outside the International Space Station. Astrobiology. Mary Ann Liebert Inc.. DOI: 10.1089/ast.2017.1728 ISSN 1531-1074

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Official URL: https://www.liebertpub.com/doi/abs/10.1089/ast.2017.1728

Abstract

The search for life beyond Earth involves investigation into the responses of model organisms to the deleterious effects of space. In the frame of the BIOlogy and Mars Experiment, as part of the European Space Agency (ESA) space mission EXPOSE-R2 in low Earth orbit (LEO), dried colonies of the Antarctic cryptoendolithic black fungus Cryomyces antarcticus CCFEE 515 were grown on martian and lunar analog regolith pellets, and exposed for 16 months to LEO space and simulated Mars-like conditions on the International Space Station. The results demonstrate that C. antarcticus was able to tolerate the combined stress of different extraterrestrial substrates, space, and simulated Mars-like conditions in terms of survival, DNA, and ultrastructural stability. Results offer insights into the habitability of Mars for future exploration missions on Mars. Implications for the detection of biosignatures in extraterrestrial conditions and planetary protection are discussed.

Item URL in elib:https://elib.dlr.de/122930/
Document Type:Article
Title:Survival, DNA, and Ultrastructural Integrity of a Cryptoendolithic Antarctic Fungus in Mars and Lunar Rock Analogues Exposed Outside the International Space Station
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Onofri, SilvanoDepartment of Ecological and Biological Sciences, University of Tuscia, Viterbo, ItalyUNSPECIFIED
Selbmann, LauraDepartment of Ecological and Biological Sciences, University of Tuscia, Viterbo, Italy and Section of Mycology, Italian National Antarctic Museum, Viterbo, Italy.UNSPECIFIED
Pacelli, ClaudiaDepartment of Ecological and Biological Sciences, University of Tuscia, Viterbo, ItalyUNSPECIFIED
Zucconi, LauraDepartment of Ecological and Biological Sciences, University of Tuscia, Viterbo, ItalyUNSPECIFIED
Rabbow, ElkeRadiation Biology Department, Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany; Elke.Rabbow (at) dlr.dehttps://orcid.org/0000-0002-9301-2021
de Vera, Jean-PierreInstitute of Planetary Research, Management and Infrastructure, Research Group Astrobiology Laboratories, DLR, Berlin, Germanyhttps://orcid.org/0000-0002-9530-5821
Date:30 October 2018
Journal or Publication Title:Astrobiology
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1089/ast.2017.1728
Publisher:Mary Ann Liebert Inc.
ISSN:1531-1074
Status:Published
Keywords:Cryomyces antarcticus, EXPOSE-R2, Habitability, Mars conditions
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):R - Vorhaben Strahlenbiologie, R - Vorhaben Exploration des Sonnensystems
Location: Berlin-Adlershof , Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Radiation Biology
Institute of Planetary Research > Leitungsbereich PF
Deposited By: Kopp, Kerstin
Deposited On:19 Nov 2018 10:11
Last Modified:06 Sep 2019 15:23

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