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Iron Ion Particle Radiation Resistance of Dried Colonies of Cryomyces antarcticus Embedded in Martian Regolith Analogues
https://repo.qst.go.jp/records/82091
https://repo.qst.go.jp/records/8209164d9d4c1-82e8-486b-9674-8e1ea6d8ef01
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-03-09 | |||||
タイトル | ||||||
タイトル | Iron Ion Particle Radiation Resistance of Dried Colonies of Cryomyces antarcticus Embedded in Martian Regolith Analogues | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Aureli, Lorenzo
× Aureli, Lorenzo× Pacelli, Claudia× Cassaro, Alessia× Akira, Fujimori× Moeller, Ralf× Onofri, Silvano× Akira, Fujimori |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Among the celestial bodies in the Solar System, Mars currently represents the main target for the search for life beyond Earth. However, its surface is constantly exposed to high doses of cosmic rays (CRs) that may pose a threat to any biological system. For this reason, investigations into the limits of resistance of life to space relevant radiation is fundamental to speculate on the chance of finding extraterrestrial organisms on Mars. In the present work, as part of the STARLIFE project, the responses of dried colonies of the black fungus Cryomyces antarcticus Culture Collection of Fungi from Extreme Environments (CCFEE) 515 to the exposure to accelerated iron (LET: 200 keV/μm) ions, which mimic part of CRs spectrum, were investigated. Samples were exposed to the iron ions up to 1000 Gy in the presence of Martian regolith analogues. Our results showed an extraordinary resistance of the fungus in terms of survival, recovery of metabolic activity and DNA integrity. These experiments give new insights into the survival probability of possible terrestrial-like life forms on the present or past Martian surface and shallow subsurface environments. | |||||
書誌情報 |
Life 巻 10, 号 12, p. 306, 発行日 2020-12 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2075-1729 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.3390/life10120306 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://www.mdpi.com/2075-1729/10/12/306 |