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Verseux, Cyprien and Baqué, Mickael and Cifariello, Riccardo and Fagliarone, Claudia and Raguse, Marina and Moeller, Ralf and Billi, Daniela (2017) Evaluation of the Resistance of Chroococcidiopsis spp. to Sparsely and Densely Ionizing Irradiation. Astrobiology, 17 (2), pp. 118-125. Mary Ann Liebert. doi: 10.1089/ast.2015.1450. ISSN 1531-1074.
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Official URL: http://online.liebertpub.com/doi/abs/10.1089/ast.2015.1450?src=recsys
Abstract
Studying the resistance of cyanobacteria to ionizing radiation provides relevant information regarding astrobiology-related topics including the search for life on Mars, lithopanspermia, and biological life-support systems. Here, we report on the resistance of desert cyanobacteria of the genus Chroococcidiopsis, which were exposed (as part of the STARLIFE series of experiments) in both hydrated and dried states to ionizing radiation with different linear energy transfer values (0.2 to 200 keV/μm). Irradiation with up to 1 kGy of He or Si ions, 2 kGy of Fe ions, 5 kGy of X-rays, or 11.59 kGy of γ rays (60Co) did not eradicate Chroococcidiopsis populations, nor did it induce detectable damage to DNA or plasma membranes. The relevance of these results for astrobiology is briefly discussed.
| Item URL in elib: | https://elib.dlr.de/111359/ | ||||||||||||||||||||||||||||||||
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| Document Type: | Article | ||||||||||||||||||||||||||||||||
| Title: | Evaluation of the Resistance of Chroococcidiopsis spp. to Sparsely and Densely Ionizing Irradiation | ||||||||||||||||||||||||||||||||
| Authors: |
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| Date: | 2017 | ||||||||||||||||||||||||||||||||
| Journal or Publication Title: | Astrobiology | ||||||||||||||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||||||||||||||
| Open Access: | No | ||||||||||||||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||||||||||||||
| In SCOPUS: | Yes | ||||||||||||||||||||||||||||||||
| In ISI Web of Science: | Yes | ||||||||||||||||||||||||||||||||
| Volume: | 17 | ||||||||||||||||||||||||||||||||
| DOI: | 10.1089/ast.2015.1450 | ||||||||||||||||||||||||||||||||
| Page Range: | pp. 118-125 | ||||||||||||||||||||||||||||||||
| Publisher: | Mary Ann Liebert | ||||||||||||||||||||||||||||||||
| ISSN: | 1531-1074 | ||||||||||||||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||||||||||||||
| Keywords: | Ionizing Radiation, Linear energy Transfer, Lithopanspermia, Cyanobacterial radioresistance, Chroococcidiopsis, Mars | ||||||||||||||||||||||||||||||||
| 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 - Vorhaben Strahlenbiologie (old), R - Vorhaben Planetary Evolution and Life (old) | ||||||||||||||||||||||||||||||||
| Location: | Berlin-Adlershof , Köln-Porz | ||||||||||||||||||||||||||||||||
| Institutes and Institutions: | Institute of Planetary Research > Leitungsbereich PF Institute of Aerospace Medicine > Radiation Biology | ||||||||||||||||||||||||||||||||
| Deposited By: | Kopp, Kerstin | ||||||||||||||||||||||||||||||||
| Deposited On: | 07 Mar 2017 12:53 | ||||||||||||||||||||||||||||||||
| Last Modified: | 07 Nov 2025 11:05 |
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