The Responses of the Black Fungus Cryomyces Antarcticus to High Doses of Accelerated Helium Ions Radiation within Martian Regolith Simulants and Their Relevance for Mars
One of the primary current astrobiological goals is to understand the limits of microbial resistance to extraterrestrial conditions. Much attention is paid to ionizing radiation, since it can prevent the preservation and spread of life outside the Earth. The aim of this research was to study the imp...
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ftdoajarticles:oai:doaj.org/article:79258f55ac984e4c97fb3a101e2f7e78 2023-05-15T13:43:11+02:00 The Responses of the Black Fungus Cryomyces Antarcticus to High Doses of Accelerated Helium Ions Radiation within Martian Regolith Simulants and Their Relevance for Mars Claudia Pacelli Alessia Cassaro Lorenzo Aureli Ralf Moeller Akira Fujimori Silvano Onofri 2020-07-01T00:00:00Z https://doi.org/10.3390/life10080130 https://doaj.org/article/79258f55ac984e4c97fb3a101e2f7e78 EN eng MDPI AG https://www.mdpi.com/2075-1729/10/8/130 https://doaj.org/toc/2075-1729 doi:10.3390/life10080130 2075-1729 https://doaj.org/article/79258f55ac984e4c97fb3a101e2f7e78 Life, Vol 10, Iss 130, p 130 (2020) Galactic Cosmic Rays (GCRs) Mars environment black fungi survival UV-vis spectroscopy resistance Science Q article 2020 ftdoajarticles https://doi.org/10.3390/life10080130 2022-12-30T22:30:29Z One of the primary current astrobiological goals is to understand the limits of microbial resistance to extraterrestrial conditions. Much attention is paid to ionizing radiation, since it can prevent the preservation and spread of life outside the Earth. The aim of this research was to study the impact of accelerated He ions (150 MeV/n, up to 1 kGy) as a component of the galactic cosmic rays on the black fungus C. antarcticus when mixed with Antarctic sandstones—the substratum of its natural habitat—and two Martian regolith simulants, which mimics two different evolutionary stages of Mars. The high dose of 1 kGy was used to assess the effect of dose accumulation in dormant cells within minerals, under long-term irradiation estimated on a geological time scale. The data obtained suggests that viable Earth-like microorganisms can be preserved in the dormant state in the near-surface scenario for approximately 322,000 and 110,000 Earth years within Martian regolith that mimic early and present Mars environmental conditions, respectively. In addition, the results of the study indicate the possibility of maintaining traces within regolith, as demonstrated by the identification of melanin pigments through UltraViolet-visible (UV-vis) spectrophotometric approach. Article in Journal/Newspaper Antarc* Antarctic antarcticus Directory of Open Access Journals: DOAJ Articles Antarctic Life 10 8 130 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Galactic Cosmic Rays (GCRs) Mars environment black fungi survival UV-vis spectroscopy resistance Science Q |
spellingShingle |
Galactic Cosmic Rays (GCRs) Mars environment black fungi survival UV-vis spectroscopy resistance Science Q Claudia Pacelli Alessia Cassaro Lorenzo Aureli Ralf Moeller Akira Fujimori Silvano Onofri The Responses of the Black Fungus Cryomyces Antarcticus to High Doses of Accelerated Helium Ions Radiation within Martian Regolith Simulants and Their Relevance for Mars |
topic_facet |
Galactic Cosmic Rays (GCRs) Mars environment black fungi survival UV-vis spectroscopy resistance Science Q |
description |
One of the primary current astrobiological goals is to understand the limits of microbial resistance to extraterrestrial conditions. Much attention is paid to ionizing radiation, since it can prevent the preservation and spread of life outside the Earth. The aim of this research was to study the impact of accelerated He ions (150 MeV/n, up to 1 kGy) as a component of the galactic cosmic rays on the black fungus C. antarcticus when mixed with Antarctic sandstones—the substratum of its natural habitat—and two Martian regolith simulants, which mimics two different evolutionary stages of Mars. The high dose of 1 kGy was used to assess the effect of dose accumulation in dormant cells within minerals, under long-term irradiation estimated on a geological time scale. The data obtained suggests that viable Earth-like microorganisms can be preserved in the dormant state in the near-surface scenario for approximately 322,000 and 110,000 Earth years within Martian regolith that mimic early and present Mars environmental conditions, respectively. In addition, the results of the study indicate the possibility of maintaining traces within regolith, as demonstrated by the identification of melanin pigments through UltraViolet-visible (UV-vis) spectrophotometric approach. |
format |
Article in Journal/Newspaper |
author |
Claudia Pacelli Alessia Cassaro Lorenzo Aureli Ralf Moeller Akira Fujimori Silvano Onofri |
author_facet |
Claudia Pacelli Alessia Cassaro Lorenzo Aureli Ralf Moeller Akira Fujimori Silvano Onofri |
author_sort |
Claudia Pacelli |
title |
The Responses of the Black Fungus Cryomyces Antarcticus to High Doses of Accelerated Helium Ions Radiation within Martian Regolith Simulants and Their Relevance for Mars |
title_short |
The Responses of the Black Fungus Cryomyces Antarcticus to High Doses of Accelerated Helium Ions Radiation within Martian Regolith Simulants and Their Relevance for Mars |
title_full |
The Responses of the Black Fungus Cryomyces Antarcticus to High Doses of Accelerated Helium Ions Radiation within Martian Regolith Simulants and Their Relevance for Mars |
title_fullStr |
The Responses of the Black Fungus Cryomyces Antarcticus to High Doses of Accelerated Helium Ions Radiation within Martian Regolith Simulants and Their Relevance for Mars |
title_full_unstemmed |
The Responses of the Black Fungus Cryomyces Antarcticus to High Doses of Accelerated Helium Ions Radiation within Martian Regolith Simulants and Their Relevance for Mars |
title_sort |
responses of the black fungus cryomyces antarcticus to high doses of accelerated helium ions radiation within martian regolith simulants and their relevance for mars |
publisher |
MDPI AG |
publishDate |
2020 |
url |
https://doi.org/10.3390/life10080130 https://doaj.org/article/79258f55ac984e4c97fb3a101e2f7e78 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic antarcticus |
genre_facet |
Antarc* Antarctic antarcticus |
op_source |
Life, Vol 10, Iss 130, p 130 (2020) |
op_relation |
https://www.mdpi.com/2075-1729/10/8/130 https://doaj.org/toc/2075-1729 doi:10.3390/life10080130 2075-1729 https://doaj.org/article/79258f55ac984e4c97fb3a101e2f7e78 |
op_doi |
https://doi.org/10.3390/life10080130 |
container_title |
Life |
container_volume |
10 |
container_issue |
8 |
container_start_page |
130 |
_version_ |
1766185653252390912 |