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The BIOMEX space experiment:, biosignatures detected after ground-based Science Verification Tests (SVT) in space and simulated Mars conditions

Onofri, S. and Pacelli, C. and Selbmann, L. and Zucconi, L. and Saladino, R. and Botta, L. and Rabbow, Elke and Boettger, U. and de Vera, J.-P. (2017) The BIOMEX space experiment:, biosignatures detected after ground-based Science Verification Tests (SVT) in space and simulated Mars conditions. EANA 2017, 14.-17. August, 2017, Aarhus, Denmark.

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Abstract

The BIOlogy and Mars Experiment (BIOMEX) is part of the European Space Agency (ESA) space mission EXPOSE-R2 in Low Earth Orbit (LEO), aiming to expose microorganisms for 1.5 years to space and simulated Mars-like conditions on the International Space Station (ISS). In preparation of this mission, dried colonies of the Antarctic cryptoendolithic black fungus Cryomyces antarcticus CCFEE 515, grown on Martian and Lunar analogue regolith pellets, were subjected to several ground-based preflight tests, Experiment Verification Tests (EVTs) and Science Verification Tests (SVTs). These tests aimed to verify i) the resistance of our model organism to space stressors when grown on extraterrestrial rock analogues and ii) the possibility to detect biomolecules as potential biosignatures in reference to support the Exomars 2020 mission. Here some results are reported showing the outcome of the SVTs, the last set of experiments, where the effect of UV radiation was analyzed if combined with simulated space vacuum or simulated Mars-like conditions. The analyses performed by Gas Chromatography-Mass Spectrometry showed the presence of fungal metabolites, as azelaic acid, that remain unaltered after the different expositions and treatments. In addition first results of Raman Spectroscopy analysis on melanin will be presented. Further investigation is necessary to derive the appropriate parameter set for Raman spectroscopy of melanin. Transmission Electron Microscopy (TEM) observations showed different results in preservation of cell’s ultrastructure.

Item URL in elib:https://elib.dlr.de/114424/
Document Type:Conference or Workshop Item (Speech)
Title:The BIOMEX space experiment:, biosignatures detected after ground-based Science Verification Tests (SVT) in space and simulated Mars conditions
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Onofri, S.Department of Ecological and Biological Sciences (DEB), University of Tuscia, 01100 Viterbo, Italy.UNSPECIFIED
Pacelli, C.Department of Ecological and Biological Sciences (DEB), University of Tuscia, 01100 Viterbo, Italy.UNSPECIFIED
Selbmann, L.Department of Ecological and Biological Sciences (DEB), University of Tuscia, 01100 Viterbo, Italy.UNSPECIFIED
Zucconi, L.Department of Ecological and Biological Sciences (DEB), University of Tuscia, 01100 Viterbo, Italy.UNSPECIFIED
Saladino, R.Department of Ecological and Biological Sciences (DEB), University of Tuscia, 01100 Viterbo, Italy.UNSPECIFIED
Botta, L.Department of Ecological and Biological Sciences (DEB), University of Tuscia, 01100 Viterbo, Italy.UNSPECIFIED
Rabbow, Elkeradiation biology department, institute of aerospace medicine, german aerospace center (dlr), cologne, germany.https://orcid.org/0000-0002-9301-2021
Boettger, U.German Aerospace Center (DLR), Institute of Optical Sensor Systems, 12489 Berlin, Germany.UNSPECIFIED
de Vera, J.-P.German Aerospace Center (DLR), Institute of Planetary Research, 12489 Berlin, Germany.https://orcid.org/0000-0002-9530-5821
Date:2017
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Mars Experiment (BIOMEX), space mission EXPOSE-R2
Event Title:EANA 2017
Event Location:Aarhus, Denmark
Event Type:international Conference
Event Dates:14.-17. August, 2017
Organizer:European Astrobiology Network Association
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
Institute of Optical Sensor Systems
Deposited By: Kopp, Kerstin
Deposited On:28 Sep 2017 11:46
Last Modified:31 Jul 2019 20:11

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