elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Contact | Deutsch
Fontsize: [-] Text [+]

Tolerance of thermophilic and hyperthermophilic microorganisms to desiccation

Beblo, Kristina and Rabbow, Elke and Rachel, Reinhard and Huber, Harald and Rettberg, Petra (2009) Tolerance of thermophilic and hyperthermophilic microorganisms to desiccation. Extremophiles, 13, pp. 521-531. Springer. DOI: 10.1007/s00792-009-0239-1.

Full text not available from this repository.

Abstract

We examined short- and long-term desiccation tolerance of 31 strains of thermophilic and hyperthermophilic Archaea and thermophilic phylogenetically deep-branching Bacteria. Seventeen organisms showed a significant high ability to withstand desiccation. The desiccation tolerance turned out to be species-specific and was influenced by several parameters such as storage temperature, pH, substrate or presence of oxygen. All organisms showed a higher survival rate at low storage temperatures (-20°C or below) than at room temperature. Anaerobic and microaerophilic strains are influenced negatively in their survival by the presence of oxygen during desiccation and storage. The desiccation tolerance of Sulfolobales strains is coinfluenced by the pH and the substrate of the pre-culture. The distribution of desiccation tolerance in the phylogenetic tree of life is not domain specific. Surprisingly, there are dramatic differences in desiccation tolerance among organisms from the same order and even from closely related strains of the same genus. Our results show that tolerance of vegetative cells to desiccation is a common phenomenon of thermophilic and hyperthermophilic microorganisms although they originated from quite different non-arid habitats like boiling acidic springs or black smoker chimneys.

Document Type:Article
Title:Tolerance of thermophilic and hyperthermophilic microorganisms to desiccation
Authors:
AuthorsInstitution or Email of Authors
Beblo, KristinaRadiation Biology Division, German Aerospace Center (DLR e.V.), Institute of Aerospace Medicine, Linder Hoehe, 51147 Cologne, Germany and Faculty of Natural Sciences III, Institute for Microbiology and Archaea Center, University of Regensburg, Regensburg
Rabbow, ElkeUNSPECIFIED
Rachel, ReinhardFaculty of Natural Sciences III, Center for Electron Microscopy, University of Regensburg, Regensburg, Germany
Huber, HaraldFaculty of Natural Sciences III, Institute for Microbiology and Archaea Center, University of Regensburg, Regensburg, Germany
Rettberg, PetraUNSPECIFIED
Date:2009
Journal or Publication Title:Extremophiles
Refereed publication:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:13
DOI:10.1007/s00792-009-0239-1
Page Range:pp. 521-531
Publisher:Springer
Status:Published
Keywords:Desiccation, Tolerance, Survival, Hyperthermophilic, Archaea
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: Kerstin Kopp
Deposited On:09 Apr 2009
Last Modified:04 Apr 2013 15:50

Repository Staff Only: item control page

Browse
Search
Help & Contact
Informationen
electronic library is running on EPrints 3.3.12
Copyright © 2008-2012 German Aerospace Center (DLR). All rights reserved.