The effect of high-dose ionizing radiation on the astrobiological model lichen circinaria gyrosa
9 páginas.-- 4 figuras.-- 44 referencias
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Other Authors: | |
| Format: | artículo biblioteca |
| Language: | English |
| Published: |
Mary Ann Liebert
2017-02-01
|
| Subjects: | Circinaria gyrosa, Extremotolerance, Gamma rays, Lichens, Photosynthetic activity, Simulated space ionizing radiation, |
| Online Access: | http://hdl.handle.net/10261/147608 http://dx.doi.org/10.13039/501100000780 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| id |
dig-irnas-es-10261-147608 |
|---|---|
| record_format |
koha |
| spelling |
dig-irnas-es-10261-1476082018-09-10T12:24:41Z The effect of high-dose ionizing radiation on the astrobiological model lichen circinaria gyrosa De la Torre Noetzel, R. Miller, A. Z. Cubero, Beatriz Martín-Cerezo, M.L. Raguse, Marina Meeßen, Joachim European Commission Circinaria gyrosa Extremotolerance Gamma rays Lichens Photosynthetic activity Simulated space ionizing radiation 9 páginas.-- 4 figuras.-- 44 referencias The lichen Circinaria gyrosa is an astrobiological model defined by its high capacity of resistance to space conditions and to a simulated martian environment. Therefore, it became part of the currently operated BIOMEX experiment on board the International Space Station and the recent STARLIFE campaign to study the effects of four types of space-relevant ionizing radiation. The samples were irradiated with helium and iron ions at doses up to 2 kGy, with X-rays at doses up to 5 kGy and with γ rays at doses from 6 to 113 kGy. Results on C. gyrosa's resistance to simulated space ionizing radiation and its post-irradiation viability were obtained by (i) chlorophyll a fluorescence of photosystem II (PSII), (ii) epifluorescence microscopy, (iii) confocal laser scanning microscopy (CLSM), and (iv) field emission scanning electron microscopy (FESEM). Results of photosynthetic activity and epifluorescence show no significant changes up to a dose of 1 kGy (helium ions), 2 kGy (iron ions), 5 kGy (X-rays) -The maximum doses applied for those radiation qualities -As well as a dose of 6 kGy of γ irradiation, which was the lowest dose applied for this low linear energy transfer (LET) radiation. Significant damage in a dose-related manner was observed only at much higher doses of γ irradiation (up to 113 kGy). These data corroborate the findings of the parallel STARLIFE studies on the effects of ionizing radiation on the lichen Circinaria gyrosa, its isolated photobiont, and the lichen Xanthoria elegans. The authors thank the Institute of Aerospace Medicine, Department of Radiation Biology at DLR in Cologne, Germany, and the HIMAC team at NIRS in Chiba, Japan, especially Ralf Moeller and Ryuichi Okayasu. A.Z. Miller acknowledges support from the Marie Curie Intra-European Fellowship of the European Commission’s 7th Framework Program (PIEF-GA-2012-328689). We thank Juan Luis Ribas and Cristina Vaquero from CITIUS (University of Seville) Peer reviewed 2017-03-30T10:01:20Z 2017-03-30T10:01:20Z 2017-02-01 artículo http://purl.org/coar/resource_type/c_6501 Astrobiology 17(2) 145-153 (2017) 1573-5052 http://hdl.handle.net/10261/147608 10.1089/ast.2015.1454 http://dx.doi.org/10.13039/501100000780 en #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/FP7/328689 http://dx.doi.org/10.1089/ast.2015.1454 Sí none Mary Ann Liebert |
| institution |
IRNAS ES |
| collection |
DSpace |
| country |
España |
| countrycode |
ES |
| component |
Bibliográfico |
| access |
En linea |
| databasecode |
dig-irnas-es |
| tag |
biblioteca |
| region |
Europa del Sur |
| libraryname |
Biblioteca del IRNAS España |
| language |
English |
| topic |
Circinaria gyrosa Extremotolerance Gamma rays Lichens Photosynthetic activity Simulated space ionizing radiation Circinaria gyrosa Extremotolerance Gamma rays Lichens Photosynthetic activity Simulated space ionizing radiation |
| spellingShingle |
Circinaria gyrosa Extremotolerance Gamma rays Lichens Photosynthetic activity Simulated space ionizing radiation Circinaria gyrosa Extremotolerance Gamma rays Lichens Photosynthetic activity Simulated space ionizing radiation De la Torre Noetzel, R. Miller, A. Z. Cubero, Beatriz Martín-Cerezo, M.L. Raguse, Marina Meeßen, Joachim The effect of high-dose ionizing radiation on the astrobiological model lichen circinaria gyrosa |
| description |
9 páginas.-- 4 figuras.-- 44 referencias |
| author2 |
European Commission |
| author_facet |
European Commission De la Torre Noetzel, R. Miller, A. Z. Cubero, Beatriz Martín-Cerezo, M.L. Raguse, Marina Meeßen, Joachim |
| format |
artículo |
| topic_facet |
Circinaria gyrosa Extremotolerance Gamma rays Lichens Photosynthetic activity Simulated space ionizing radiation |
| author |
De la Torre Noetzel, R. Miller, A. Z. Cubero, Beatriz Martín-Cerezo, M.L. Raguse, Marina Meeßen, Joachim |
| author_sort |
De la Torre Noetzel, R. |
| title |
The effect of high-dose ionizing radiation on the astrobiological model lichen circinaria gyrosa |
| title_short |
The effect of high-dose ionizing radiation on the astrobiological model lichen circinaria gyrosa |
| title_full |
The effect of high-dose ionizing radiation on the astrobiological model lichen circinaria gyrosa |
| title_fullStr |
The effect of high-dose ionizing radiation on the astrobiological model lichen circinaria gyrosa |
| title_full_unstemmed |
The effect of high-dose ionizing radiation on the astrobiological model lichen circinaria gyrosa |
| title_sort |
effect of high-dose ionizing radiation on the astrobiological model lichen circinaria gyrosa |
| publisher |
Mary Ann Liebert |
| publishDate |
2017-02-01 |
| url |
http://hdl.handle.net/10261/147608 http://dx.doi.org/10.13039/501100000780 |
| work_keys_str_mv |
AT delatorrenoetzelr theeffectofhighdoseionizingradiationontheastrobiologicalmodellichencircinariagyrosa AT milleraz theeffectofhighdoseionizingradiationontheastrobiologicalmodellichencircinariagyrosa AT cuberobeatriz theeffectofhighdoseionizingradiationontheastrobiologicalmodellichencircinariagyrosa AT martincerezoml theeffectofhighdoseionizingradiationontheastrobiologicalmodellichencircinariagyrosa AT ragusemarina theeffectofhighdoseionizingradiationontheastrobiologicalmodellichencircinariagyrosa AT meeßenjoachim theeffectofhighdoseionizingradiationontheastrobiologicalmodellichencircinariagyrosa AT delatorrenoetzelr effectofhighdoseionizingradiationontheastrobiologicalmodellichencircinariagyrosa AT milleraz effectofhighdoseionizingradiationontheastrobiologicalmodellichencircinariagyrosa AT cuberobeatriz effectofhighdoseionizingradiationontheastrobiologicalmodellichencircinariagyrosa AT martincerezoml effectofhighdoseionizingradiationontheastrobiologicalmodellichencircinariagyrosa AT ragusemarina effectofhighdoseionizingradiationontheastrobiologicalmodellichencircinariagyrosa AT meeßenjoachim effectofhighdoseionizingradiationontheastrobiologicalmodellichencircinariagyrosa |
| _version_ |
1777664905590079488 |