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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Multidisciplinary Digital Publishing Institute (MDPI)
2021
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ftdlr:oai:elib.dlr.de:143267 2023-05-15T13:49:17+02:00 Insights into the Survival Capabilities of Cryomyces antarcticus Hydrated Colonies after Exposure to Fe Particle Radiation Pacelli, Claudia Alessia, Cassaro Siong, Loke M. Lorenzo, Aureli Moeller, Ralf Fujimori, Akira Igor, Shuryak Silvano, Onofri 2021-06-22 application/pdf https://elib.dlr.de/143267/ https://elib.dlr.de/143267/1/ME-SBA-2021-Pacelli-Moeller_JFungi-Fe_radiation_jof-07-00495-v2.pdf https://doi.org/10.3390/jof7070495 en eng Multidisciplinary Digital Publishing Institute (MDPI) https://elib.dlr.de/143267/1/ME-SBA-2021-Pacelli-Moeller_JFungi-Fe_radiation_jof-07-00495-v2.pdf Pacelli, Claudia und Alessia, Cassaro und Siong, Loke M. und Lorenzo, Aureli und Moeller, Ralf und Fujimori, Akira und Igor, Shuryak und Silvano, Onofri (2021) Insights into the Survival Capabilities of Cryomyces antarcticus Hydrated Colonies after Exposure to Fe Particle Radiation. Journal of Fungi, 7 (7), Seite 495. Multidisciplinary Digital Publishing Institute (MDPI). doi:10.3390/jof7070495 <https://doi.org/10.3390/jof7070495>. ISSN 2309-608X. Strahlenbiologie Zeitschriftenbeitrag PeerReviewed 2021 ftdlr https://doi.org/10.3390/jof7070495 2021-09-05T23:06:06Z 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. Other Non-Article Part of Journal/Newspaper Antarc* antarcticus German Aerospace Center: elib - DLR electronic library Journal of Fungi 7 7 495 |
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German Aerospace Center: elib - DLR electronic library |
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ftdlr |
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English |
topic |
Strahlenbiologie |
spellingShingle |
Strahlenbiologie Pacelli, Claudia Alessia, Cassaro Siong, Loke M. Lorenzo, Aureli Moeller, Ralf Fujimori, Akira Igor, Shuryak Silvano, Onofri Insights into the Survival Capabilities of Cryomyces antarcticus Hydrated Colonies after Exposure to Fe Particle Radiation |
topic_facet |
Strahlenbiologie |
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 |
Other Non-Article Part of Journal/Newspaper |
author |
Pacelli, Claudia Alessia, Cassaro Siong, Loke M. Lorenzo, Aureli Moeller, Ralf Fujimori, Akira Igor, Shuryak Silvano, Onofri |
author_facet |
Pacelli, Claudia Alessia, Cassaro Siong, Loke M. Lorenzo, Aureli Moeller, Ralf Fujimori, Akira Igor, Shuryak Silvano, Onofri |
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 |
Multidisciplinary Digital Publishing Institute (MDPI) |
publishDate |
2021 |
url |
https://elib.dlr.de/143267/ https://elib.dlr.de/143267/1/ME-SBA-2021-Pacelli-Moeller_JFungi-Fe_radiation_jof-07-00495-v2.pdf https://doi.org/10.3390/jof7070495 |
genre |
Antarc* antarcticus |
genre_facet |
Antarc* antarcticus |
op_relation |
https://elib.dlr.de/143267/1/ME-SBA-2021-Pacelli-Moeller_JFungi-Fe_radiation_jof-07-00495-v2.pdf Pacelli, Claudia und Alessia, Cassaro und Siong, Loke M. und Lorenzo, Aureli und Moeller, Ralf und Fujimori, Akira und Igor, Shuryak und Silvano, Onofri (2021) Insights into the Survival Capabilities of Cryomyces antarcticus Hydrated Colonies after Exposure to Fe Particle Radiation. Journal of Fungi, 7 (7), Seite 495. Multidisciplinary Digital Publishing Institute (MDPI). doi:10.3390/jof7070495 <https://doi.org/10.3390/jof7070495>. ISSN 2309-608X. |
op_doi |
https://doi.org/10.3390/jof7070495 |
container_title |
Journal of Fungi |
container_volume |
7 |
container_issue |
7 |
container_start_page |
495 |
_version_ |
1766251116115263488 |