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Effect of Relative Humidity on Deinococcus radiodurans’ Resistance to Prolonged Desiccation, Heat, Ionizing, Germicidal, and Environmentally Relevant UV Radiation

Bauermeister, Anja and Moeller, Ralf and Reitz, Günther and Sommer, Suzanne and Rettberg, Petra (2011) Effect of Relative Humidity on Deinococcus radiodurans’ Resistance to Prolonged Desiccation, Heat, Ionizing, Germicidal, and Environmentally Relevant UV Radiation. Microbial Ecology, 61 (3), pp. 715-722. Springer. DOI: 10.1007/s00248-010-9785-4 ISSN 0095-3628

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Abstract

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.

Item URL in elib:https://elib.dlr.de/69545/
Document Type:Article
Title:Effect of Relative Humidity on Deinococcus radiodurans’ Resistance to Prolonged Desiccation, Heat, Ionizing, Germicidal, and Environmentally Relevant UV Radiation
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Bauermeister, Anja UNSPECIFIEDUNSPECIFIED
Moeller, Ralf UNSPECIFIEDUNSPECIFIED
Reitz, Günther UNSPECIFIEDUNSPECIFIED
Sommer, Suzanne CNRS UMR8621, CEA LRC 42V, Institut de Génétique et Microbiologie, Univ. Paris-Sud 11, Bâtiment 409, 91405 Orsay, FranceUNSPECIFIED
Rettberg, Petra UNSPECIFIEDUNSPECIFIED
Date:2011
Journal or Publication Title:Microbial Ecology
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:61
DOI :10.1007/s00248-010-9785-4
Page Range:pp. 715-722
Publisher:Springer
ISSN:0095-3628
Status:Published
Keywords:Deinococcus radiodurans, radiation resistance, humidity, UV and γ-radiation
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W FR - Forschung unter Weltraumbedingungen (old)
DLR - Research area:Space
DLR - Program:W FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):W - Vorhaben Strahlenbiologie (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Radiation Biology
Deposited By: Kopp, Kerstin
Deposited On:16 Jun 2011 12:35
Last Modified:06 Sep 2019 15:28

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