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Tolerance of thermophilic and hyperthermophilic microorganisms to desiccation

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

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Kurzfassung

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.

Dokumentart:Zeitschriftenbeitrag
Titel:Tolerance of thermophilic and hyperthermophilic microorganisms to desiccation
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
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, ElkeNICHT SPEZIFIZIERT
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, PetraNICHT SPEZIFIZIERT
Datum:2009
Erschienen in:Extremophiles
Referierte Publikation:Ja
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:13
DOI :10.1007/s00792-009-0239-1
Seitenbereich:Seiten 521-531
Verlag:Springer
Status:veröffentlicht
Stichwörter:Desiccation, Tolerance, Survival, Hyperthermophilic, Archaea
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W FR - Forschung unter Weltraumbedingungen (alt)
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W FR - Forschung unter Weltraumbedingungen
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben Strahlenbiologie (alt)
Standort: Köln-Porz
Institute & Einrichtungen:Institut für Luft- und Raumfahrtmedizin > Strahlenbiologie
Hinterlegt von: Kerstin Kopp
Hinterlegt am:09 Apr 2009
Letzte Änderung:04 Apr 2013 15:50

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