Document Detail


Effect of Relative Humidity on Deinococcus radiodurans' Resistance to Prolonged Desiccation, Heat, Ionizing, Germicidal, and Environmentally Relevant UV Radiation.
MedLine Citation:
PMID:  21161207     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
To test the effect of humidity on the radiation resistance of Deinococcus radiodurans, air-dried cells were irradiated with germicidal 254 nm UV, and simulated environmental UV or γ-radiation and survival was compared to cells in suspension. It was observed that desiccated cells exhibited higher levels of resistance than cells in suspension toward UV or γ-radiation as well as after 85°C heat shock. It was also shown that low relative humidity improves survival during long-term storage of desiccated D. radiodurans cells. It can be concluded that periods or environments in which cells exist in a dehydrated state are beneficial for D. radiodurans' survival exposed to various other stresses.
Authors:
Anja Bauermeister; Ralf Moeller; Günther Reitz; Suzanne Sommer; Petra Rettberg
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2010-12-16
Journal Detail:
Title:  Microbial ecology     Volume:  -     ISSN:  1432-184X     ISO Abbreviation:  -     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-12-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7500663     Medline TA:  Microb Ecol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Institute of Aerospace Medicine, Radiation Biology Department, Research Group 'Astrobiology', German Aerospace Center (DLR), Linder Hoehe, 51147, Cologne (Koeln), Germany.
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