id:"swepub:oai:DiVA.org:hkr-12469"
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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 03645naa a2200445 4500 | |
| 001 | oai:DiVA.org:hkr-12469 | |
| 003 | SwePub | |
| 008 | 140729s2005 | |||||||||||000 ||eng| | |
| 009 | oai:lup.lub.lu.se:22ebbe64-2d05-49a4-bf5e-01e1959e4e39 | |
| 024 | 7 | a urn:nbn:se:hkr:diva-124692 urn |
| 024 | 7 | a https://doi.org/10.1080/095530005003684532 DOI |
| 024 | 7 | a https://lup.lub.lu.se/record/1555572 URI |
| 040 | a (SwePub)hkrd (SwePub)lu | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a art2 swepub-publicationtype |
| 100 | 1 | a Jönsson, K. Ingemar,d 1959-u Lund University4 aut0 (Swepub:hkr)jni |
| 245 | 1 0 | a Radiation tolerance in the eutardigrade Richtersius coronifer |
| 264 | 1 | b Taylor & Francis,c 2005 |
| 338 | a print2 rdacarrier | |
| 520 | a PURPOSE: Tardigrades have a reputation of being extremely tolerant to extreme environmental conditions including tolerance to ionizing radiation while in a desiccated, anhydrobiotic state. However, the evidence for radio-tolerance in tardigrades is based on only one previous report, and there is an obvious need for complementary studies. In this paper we report an investigation on radio-tolerance in desiccated and hydrated specimens of the eutardigrade Richtersius coronifer.MATERIALS AND METHODS: Groups of 30 - 50 tardigrades were exposed to gamma-radiation at doses between 1.0 - 9.0 (anhydrobiotic animals) or 0.5 - 5.0 (hydrated animals) kGy and the animals were followed until all were dead. Radiation tolerance of both desiccated and hydrated tardigrades was studied.RESULTS: Both desiccated and hydrated animals irradiated with 0.5 and 1 kGy did not deviate in survival from the control groups. Animals from all exposed groups underwent their moulting and egg production cycle, but at decreasing frequency for doses above 1 kGy. No eggs laid by irradiated animals hatched, while eggs laid by controls did so.CONCLUSION: Our study suggests that radiation tolerance in tardigrades is not due to biochemical protectants connected with the desiccated state. Rather, cryptobiotic tardigrades may rely on efficient mechanisms of DNA repair, the nature of which is currently unknown. | |
| 650 | 7 | a NATURAL SCIENCESx Biological Sciencesx Zoology0 (SwePub)106082 hsv//eng |
| 650 | 7 | a NATURVETENSKAPx Biologiska vetenskaperx Zoologi0 (SwePub)106082 hsv//swe |
| 650 | 7 | a NATURVETENSKAPx Biologi0 (SwePub)1062 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Biological Sciences0 (SwePub)1062 hsv//eng |
| 650 | 7 | a NATURVETENSKAPx Biologix Ekologi0 (SwePub)106112 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Biological Sciencesx Ecology0 (SwePub)106112 hsv//eng |
| 653 | a Tardigrades; anhydrobiosis; resistance; desiccation; DNA damage; DNA repair | |
| 700 | 1 | a Harms-Ringdahl, Matsu Stockholm University, Sweden4 aut |
| 700 | 1 | a Torudd, Jesperu Stockholm University4 aut |
| 700 | 1 | a Jönsson, Ingemaru Lund University,Lunds universitet,Biologiska institutionen,Naturvetenskapliga fakulteten,Department of Biology,Faculty of Science4 aut0 (Swepub:lu)teor-ijo |
| 700 | 1 | a Harms-Ringdahl, M4 aut |
| 700 | 1 | a Torudd, J4 aut |
| 710 | 2 | a Lund Universityb Stockholm University, Sweden4 org |
| 773 | 0 | t International Journal of Radiation Biologyd : Taylor & Francisg 81:9, s. 649-656q 81:9<649-656x 0955-3002x 1362-3095 |
| 856 | 4 | u http://dx.doi.org/10.1080/09553000500368453y FULLTEXT |
| 856 | 4 8 | u http://urn.kb.se/resolve?urn=urn:nbn:se:hkr:diva-12469x lärosäteslänky Till lärosätets (hkr) databas |
| 856 | 4 8 | u https://doi.org/10.1080/09553000500368453 |
| 856 | 4 8 | u https://lup.lub.lu.se/record/155557 |
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