Insights into the Survival Capabilities of Cryomyces antarcticus Hydrated Colonies after Exposure to Fe Particle Radiation
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 lim...
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Hochschule Bonn-Rhein-Sieg
2021
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fthsbonnrhsieg:oai:pub.h-brs.de:5630 2024-04-28T07:57:58+00:00 Insights into the Survival Capabilities of Cryomyces antarcticus Hydrated Colonies after Exposure to Fe Particle Radiation Pacelli, Claudia Cassaro, Alessia Siong, Loke M. Aureli, Lorenzo Moeller, Ralf Fujimori, Akira Shuryak, Igor Onofri, Silvano 2021-06-22 application/pdf https://pub.h-brs.de/frontdoor/index/index/docId/5630 https://nbn-resolving.org/urn:nbn:de:hbz:1044-opus-56309 https://pub.h-brs.de/files/5630/jof-07-00495-v4.pdf eng eng Hochschule Bonn-Rhein-Sieg info:eu-repo/semantics/altIdentifier/doi/10.3390/jof7070495 https://pub.h-brs.de/frontdoor/index/index/docId/5630 https://nbn-resolving.org/urn:nbn:de:hbz:1044-opus-56309 https://pub.h-brs.de/files/5630/jof-07-00495-v4.pdf info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ Journal of Fungi ISSN 2309-608X J. Fungi 2021, 7, 495 ddc:570 ddc:579 article doc-type:article publishedVersion 2021 fthsbonnrhsieg https://doi.org/10.3390/jof7070495 2024-04-11T00:01:38Z 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. Article in Journal/Newspaper Antarc* antarcticus pub H-BRS - Publication Server of Bonn-Rhein-Sieg University of Applied Sciences Journal of Fungi 7 7 495 |
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pub H-BRS - Publication Server of Bonn-Rhein-Sieg University of Applied Sciences |
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language |
English |
topic |
ddc:570 ddc:579 |
spellingShingle |
ddc:570 ddc:579 Pacelli, Claudia Cassaro, Alessia Siong, Loke M. Aureli, Lorenzo Moeller, Ralf Fujimori, Akira Shuryak, Igor Onofri, Silvano Insights into the Survival Capabilities of Cryomyces antarcticus Hydrated Colonies after Exposure to Fe Particle Radiation |
topic_facet |
ddc:570 ddc:579 |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Pacelli, Claudia Cassaro, Alessia Siong, Loke M. Aureli, Lorenzo Moeller, Ralf Fujimori, Akira Shuryak, Igor Onofri, Silvano |
author_facet |
Pacelli, Claudia Cassaro, Alessia Siong, Loke M. Aureli, Lorenzo Moeller, Ralf Fujimori, Akira Shuryak, Igor Onofri, Silvano |
author_sort |
Pacelli, Claudia |
title |
Insights into the Survival Capabilities of Cryomyces antarcticus Hydrated Colonies after Exposure to Fe Particle Radiation |
title_short |
Insights into the Survival Capabilities of Cryomyces antarcticus Hydrated Colonies after Exposure to Fe Particle Radiation |
title_full |
Insights into the Survival Capabilities of Cryomyces antarcticus Hydrated Colonies after Exposure to Fe Particle Radiation |
title_fullStr |
Insights into the Survival Capabilities of Cryomyces antarcticus Hydrated Colonies after Exposure to Fe Particle Radiation |
title_full_unstemmed |
Insights into the Survival Capabilities of Cryomyces antarcticus Hydrated Colonies after Exposure to Fe Particle Radiation |
title_sort |
insights into the survival capabilities of cryomyces antarcticus hydrated colonies after exposure to fe particle radiation |
publisher |
Hochschule Bonn-Rhein-Sieg |
publishDate |
2021 |
url |
https://pub.h-brs.de/frontdoor/index/index/docId/5630 https://nbn-resolving.org/urn:nbn:de:hbz:1044-opus-56309 https://pub.h-brs.de/files/5630/jof-07-00495-v4.pdf |
genre |
Antarc* antarcticus |
genre_facet |
Antarc* antarcticus |
op_source |
Journal of Fungi ISSN 2309-608X J. Fungi 2021, 7, 495 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3390/jof7070495 https://pub.h-brs.de/frontdoor/index/index/docId/5630 https://nbn-resolving.org/urn:nbn:de:hbz:1044-opus-56309 https://pub.h-brs.de/files/5630/jof-07-00495-v4.pdf |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/jof7070495 |
container_title |
Journal of Fungi |
container_volume |
7 |
container_issue |
7 |
container_start_page |
495 |
_version_ |
1797591219046449152 |