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Insights into the Survival Capabilities of Cryomyces antarcticus Hydrated Colonies after Exposure to Fe Particle Radiation

Pacelli, Claudia and Alessia, Cassaro and Siong, Loke M. and Lorenzo, Aureli and Moeller, Ralf and Fujimori, Akira and Igor, Shuryak and Silvano, Onofri (2021) Insights into the Survival Capabilities of Cryomyces antarcticus Hydrated Colonies after Exposure to Fe Particle Radiation. Journal of Fungi, 7 (7), p. 495. Multidisciplinary Digital Publishing Institute (MDPI). doi: 10.3390/jof7070495. ISSN 2309-608X.

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Official URL: http://dx.doi.org/10.3390/jof7070495

Abstract

The modern concept of the evolution of Mars assumes that life could potentially have originated on the planet Mars, possibly during the end of the late heavy bombardment, and could then be transferred to other planets. Since then, physical and chemical conditions on Mars changed and now strongly limit the presence of terrestrial-like life forms. These adverse conditions include scarcity of liquid water (although brine solutions may exist), low temperature and atmospheric pressure, and cosmic radiation. Ionizing radiation is very important among these life-constraining factors because it damages DNA and other cellular components, particularly in liquid conditions where radiation-induced reactive oxidants diffuse freely. Here, we investigated the impact of high doses (up to 2 kGy) of densely-ionizing (197.6 keV/µm), space-relevant iron ions (corresponding on the irradiation that reach the uppermost layer of the Mars subsurface) on the survival of an extremophilic terrestrial organism—Cryomyces antarcticus—in liquid medium and under atmospheric conditions, through different techniques. Results showed that it survived in a metabolically active state when subjected to high doses of Fe ions and was able to repair eventual DNA damages. It implies that some terrestrial life forms can withstand prolonged exposure to space-relevant ion radiation.

Item URL in elib:https://elib.dlr.de/143267/
Document Type:Article
Additional Information:(This article belongs to the Special Issue Ecology and Evolution of Black Fungi)
Title:Insights into the Survival Capabilities of Cryomyces antarcticus Hydrated Colonies after Exposure to Fe Particle Radiation
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Pacelli, ClaudiaItalian Space Agency, 00133 Rome, Italy and Department of Ecological and Biological Sciences, University of Tuscia, 01100 Viterbo, Italy;; claudia.pacelli (at) asi.ithttps://orcid.org/0000-0001-5113-4293
Alessia, CassaroDepartment of Ecological and Biological Sciences, University of Tuscia, 01100 Viterbo, Italy; Correspondence: cassaro (at) unitus.it; Tel.: +39-0761357138https://orcid.org/0000-0003-2228-9004
Siong, Loke M.Ludwig Maximilian University of Munich, 80336 Munich, Germany; lokemunsiong (at) hotmail.comUNSPECIFIED
Lorenzo, AureliDepartment of Ecological and Biological Sciences, University of Tuscia, 01100 Viterbo, Italy; lorenzo.aureli (at) unitus.itUNSPECIFIED
Moeller, RalfRadiation Biology Department, Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany and Department of Natural Sciences, University of Applied Sciences Bonn-Rhein-Sieg (BRSU), Rheinbach, Germany; ralf.moeller (at) dlr.dehttps://orcid.org/0000-0002-2371-0676
Fujimori, AkiraMolecular and Cellular Radiation Biology Group, Department of Basic Medical Sciences for Radiation Damages, NIRS/QST, Chiba 263-8555, Japan; fujimori.akira (at) qst.go.jpUNSPECIFIED
Igor, ShuryakDepartment of Radiation Oncology, Center for Radiological Research, Columbia University Irving Medical Center, New York, NY 10032, USA; is144 (at) cumc.columbia.eduUNSPECIFIED
Silvano, OnofriDepartment of Ecological and Biological Sciences, University of Tuscia, 01100 Viterbo, Italy; onofri (at) unitus.ithttps://orcid.org/0000-0001-8872-1440
Date:22 June 2021
Journal or Publication Title:Journal of Fungi
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:7
DOI:10.3390/jof7070495
Page Range:p. 495
Publisher:Multidisciplinary Digital Publishing Institute (MDPI)
ISSN:2309-608X
Status:Published
Keywords:radiation; melanin; DNA; radioresistance; metabolically active cells
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 - Research under Space Conditions
DLR - Research theme (Project):R - Project ISS LIFE 2.0
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Radiation Biology
Deposited By: Kopp, Kerstin
Deposited On:31 Aug 2021 12:53
Last Modified:31 Aug 2021 12:53

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