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LIFE Experiment: Isolation of Cryptoendolithic Organisms from Antarctic Colonized Sandstone Exposed to Space and Simulated Mars Conditions on the International Space Station

Scalzi, Giuliano und Selbmann, Laura und Zucconi, Laura und Rabbow, Elke und Horneck, Gerda und Albertano, Patrizia und Onofri, Silvano (2012) LIFE Experiment: Isolation of Cryptoendolithic Organisms from Antarctic Colonized Sandstone Exposed to Space and Simulated Mars Conditions on the International Space Station. Origins of Life and Evolution of Biospheres, 42 (2-3), Seiten 253-262. Springer Verlag. DOI: 10.1007/s11084-012-9282-5. ISSN 0169-6149.

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Kurzfassung

Desiccated Antarctic rocks colonized by cryptoendolithic communities were exposed on the International Space Station (ISS) to space and simulated Mars conditions (LiFE—Lichens and Fungi Experiment). After 1.5 years in space samples were retrieved, rehydrated and spread on different culture media. Colonies of a green alga and a pink-coloured fungus developed on Malt-Agar medium; they were isolated from a sample exposed to simulated Mars conditions beneath a 0.1 %T Suprasil neutral density filter and from a sample exposed to space vacuum without solar radiation exposure, respectively. None of the other flight samples showed any growth after incubation. The two organisms able to grow were identified at genus level by Small SubUnit (SSU) and Internal Transcribed Spacer (ITS) rDNA sequencing as Stichococcus sp. (green alga) and Acarospora sp. (lichenized fungal genus) respectively. The data in the present study provide experimental information on the possibility of eukaryotic life transfer from one planet to another by means of rocks and of survival in Mars environment.

Dokumentart:Zeitschriftenbeitrag
Titel:LIFE Experiment: Isolation of Cryptoendolithic Organisms from Antarctic Colonized Sandstone Exposed to Space and Simulated Mars Conditions on the International Space Station
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Scalzi, Giuliano Department of Ecological and Biological Sciences (DEB), University of Tuscia, Largo dell’Università snc, 01100 Viterbo, Italy
Selbmann, Laura Department of Ecological and Biological Sciences (DEB), University of Tuscia, Largo dell’Università snc, 01100 Viterbo, Italy
Zucconi, Laura Department of Ecological and Biological Sciences (DEB), University of Tuscia, Largo dell’Università snc, 01100 Viterbo, Italy
Rabbow, Elke German Aerospace Center, Institute of Aerospace Medicine, Linder Hoehe, 51170 Köln, Germany
Horneck, Gerda German Aerospace Center, Institute of Aerospace Medicine, Linder Hoehe, 51170 Köln, Germany
Albertano, Patrizia Department of Biology, University of Rome “Tor Vergata”, via della Ricerca Scientifica snc, 00133 Rome, Italy
Onofri, Silvano Department of Ecological and Biological Sciences (DEB), University of Tuscia, Largo dell’Università snc, 01100 Viterbo, Italy
Datum:2012
Erschienen in:Origins of Life and Evolution of Biospheres
Referierte Publikation:Ja
In ISI Web of Science:Ja
Band:42
DOI :10.1007/s11084-012-9282-5
Seitenbereich:Seiten 253-262
Verlag:Springer Verlag
ISSN:0169-6149
Status:veröffentlicht
Stichwörter:Antarctic colonized rocks, EXPOSE-E, International space station, Lithopanspermia, Lichens and Fungi Experiment
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Forschung unter Weltraumbedingungen
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R FR - Forschung unter Weltraumbedingungen
DLR - Teilgebiet (Projekt, Vorhaben):R - Vorhaben Strahlenbiologie
Standort: Köln-Porz
Institute & Einrichtungen:Institut für Luft- und Raumfahrtmedizin > Strahlenbiologie
Hinterlegt von: Kerstin Kopp
Hinterlegt am:10 Aug 2012 09:38
Letzte Änderung:07 Feb 2013 19:31

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