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Characterization of viability of the lichen Buellia frigida after 1.5 years in space on the International Space Station

Backhaus, T. and Meeßen, J. and Demets, R. and de Vera, J. P. and Ott, S. (2019) Characterization of viability of the lichen Buellia frigida after 1.5 years in space on the International Space Station. Astrobiology, 19 (2), pp. 233-241. Mary Ann Liebert Inc.. doi: 10.1089/ast.2018.1894. ISSN 1531-1074.

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Official URL: https://www.liebertpub.com/doi/10.1089/ast.2018.1894


The lichen Buellia frigida was exposed to space and simulated Mars analog conditions in the Biology and Mars Experiment (BIOMEX) project operated outside the International Space Station (ISS) for 1.5 years. To determine the effects of the Low Earth Orbit (LEO conditions on the lichen symbionts, a LIVE/DEAD staining analysis test was performed. After return from the ISS, the lichen symbionts demonstrated mortality rates of up to 100% for the algal symbiont and up to 97.8% for the fungal symbiont. In contrast, the lichen Symbiont controls exhibited mortality rates of 10.3% up to 31.9% for the algal symbiont and 14.5% for the fungal symbiont. The results performed in the BIOMEX Mars Simulation experiment on the ISS indicate that the potential for survival and the resistance of the lichen B. frigida to LEO conditions are very low. It is unlikely that Mars could be inhabited by this lichen, even for a limited amount of time, or even not habitable planet for the tested lichen symbionts.

Item URL in elib:https://elib.dlr.de/128611/
Document Type:Article
Title:Characterization of viability of the lichen Buellia frigida after 1.5 years in space on the International Space Station
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Backhaus, T.Institut für Botanik, Heinrich-Heine-Universität (HHU), Universitätsstr.1, 40225 Düsseldorf, GermanyUNSPECIFIEDUNSPECIFIED
Meeßen, J.Institut für Botanik, Heinrich-Heine-Universität DüsseldorfUNSPECIFIEDUNSPECIFIED
Demets, R.ESTEC, Keplerlaan 1, 2201 AZ Noordwijk, NetherlandsUNSPECIFIEDUNSPECIFIED
de Vera, J. P.DLR, German Aerospace Center, Management and Infrastructure, Astrobiological Laboratories, Berlin, Germany.https://orcid.org/0000-0002-9530-5821UNSPECIFIED
Ott, S.Institut für Botanik, Heinrich-Heine Universität (HHU), Düsseldorf, Germany.UNSPECIFIEDUNSPECIFIED
Date:February 2019
Journal or Publication Title:Astrobiology
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 233-241
Publisher:Mary Ann Liebert Inc.
Keywords:Astrobiology; BIOMEX; Lichen; Space conditions; Mars analog conditions
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Vorhaben Planetary Evolution and Life (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Leitungsbereich PF
Deposited By: de Vera, Dr. Jean Pierre Paul
Deposited On:15 Aug 2019 13:29
Last Modified:06 Sep 2019 15:23

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