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Cryptoendolithic Antarctic Black Fungus Cryomyces antarcticus Irradiated with Accelerated Helium Ions: Survival and Metabolic Activity, DNA and Ultrastructural Damage

Pacelli, Claudia and Selbmann, Laura and Moeller, Ralf and Zucconi, Laura and Fujimori, Akira and Onofri, Silvano (2017) Cryptoendolithic Antarctic Black Fungus Cryomyces antarcticus Irradiated with Accelerated Helium Ions: Survival and Metabolic Activity, DNA and Ultrastructural Damage. Frontiers in Microbiology, 8. Frontiers Media S.A.. DOI: 10.3389/fmicb.2017.02002 ISSN 1664-302X

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Official URL: http://dx.doi.org/10.3389/fmicb.2017.02002

Abstract

Space represents an extremely harmful environment for life and survival of terrestrial organisms. In the last decades, a considerable deal of attention was paid to characterize the effects of spaceflight relevant radiation on various model organisms. The aim of this study was to test the survival capacity of the cryptoendolithic black fungus Cryomyces antarcticus CCFEE 515 to space relevant radiation, to outline its endurance to space conditions. In the frame of an international radiation campaign, dried fungal colonies were irradiated with accelerated Helium ion (150 MeV/n, LET 2.2 keV/μm), up to a final dose of 1,000 Gy, as one of the space-relevant ionizing radiation. Results showed that the fungus maintained high survival and metabolic activity with no detectable DNA and ultrastructural damage, even after the highest dose irradiation. These data give clues on the resistance of life toward space ionizing radiation in general and on the resistance and responses of eukaryotic cells in particular.

Item URL in elib:https://elib.dlr.de/115401/
Document Type:Article
Additional Information:Auch erschienen in: Olsson-Francis, K., Billi, D., Teske, A., de Vera, J.-P. P., eds. (2019). Habitability Beyond Earth. Lausanne: Frontiers Media. doi: 10.3389/978-2-88945-765-6
Title:Cryptoendolithic Antarctic Black Fungus Cryomyces antarcticus Irradiated with Accelerated Helium Ions: Survival and Metabolic Activity, DNA and Ultrastructural Damage
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Pacelli, ClaudiaDepartment of Ecological and Biological Sciences, University of Tuscia, Viterbo, ItalyUNSPECIFIED
Selbmann, LauraDepartment of Ecological and Biological Sciences, University of Tuscia, Viterbo, Italy; selbmann (at) unitus.itUNSPECIFIED
Moeller, Ralfradiation biology department, institute of aerospace medicine, german aerospace center (dlr), cologne, germany; ralf.moeller (at) dlr.dehttps://orcid.org/0000-0002-2371-0676
Zucconi, LauraDepartment of Ecological and Biological Sciences, University of Tuscia, Viterbo, ItalyUNSPECIFIED
Fujimori, AkiraNational Institute of Radiological Sciences, Research Center for Charged Particle Therapy, Chiba, JapanUNSPECIFIED
Onofri, SilvanoDepartment of Ecological and Biological Sciences, University of Tuscia, Viterbo, ItalyUNSPECIFIED
Date:2017
Journal or Publication Title:Frontiers in Microbiology
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:8
DOI :10.3389/fmicb.2017.02002
Editors:
EditorsEmail
Teske, AndreasUniversity of North Carolina at Chapel Hill, United States
Publisher:Frontiers Media S.A.
ISSN:1664-302X
Status:Published
Keywords:cosmic rays, extremophiles, extremotolerance, fungi, HZE particles, He²⁺ ions, space radiation environment
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
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Radiation Biology
Deposited By: Kopp, Kerstin
Deposited On:15 Nov 2017 15:45
Last Modified:18 Sep 2019 12:03

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