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High Tolerance of Hydrogenothermus marinus to Sodium Perchlorate

Beblo-Vranesevic, Kristina and Huber, H. and Rettberg, Petra (2017) High Tolerance of Hydrogenothermus marinus to Sodium Perchlorate. Frontiers in Microbiology, 8, p. 1369. Frontiers Media S.A.. doi: 10.3389/fmicb.2017.01369. ISSN 1664-302X.

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Official URL: http://dx.doi.org/10.3389/fmicb.2017.01369


On Mars, significant amounts (0.4–0.6%) of perchlorate ions were detected in dry soil by the Phoenix Wet Chemistry Laboratory and later confirmed with the Mars Science Laboratory. Therefore, the ability of Hydrogenothermus marinus, a desiccation tolerant bacterium, to survive and grow in the presence of perchlorates was determined. Results indicated that H. marinus was able to tolerate concentrations of sodium perchlorate up to 200 mM (www.frontiersin.org 1.6%) during cultivation without any changes in its growth pattern. After the addition of up to 440 mM (www.frontiersin.org 3.7%) sodium perchlorate, H. marinus showed significant changes in cell morphology; from single motile short rods to long cell chains up to 80 cells. Furthermore, it was shown that the known desiccation tolerance of H. marinus is highly influenced by a pre-treatment with different perchlorates; additive effects of desiccation and perchlorate treatments are visible in a reduced survival rate. These data demonstrate that thermophiles, especially H. marinus, have so far, unknown high tolerances against cell damaging treatments and may serve as model organisms for future space experiments.

Item URL in elib:https://elib.dlr.de/113296/
Document Type:Article
Additional Information:Auch erschienen in: Olsson-Francis, K., Billi, D., Teske, A., de Vera, J.-P. P., eds. (2019). Habitability Beyond Earth. Lausanne: Frontiers Media. doi: 10.3389/978-2-88945-765-6
Title:High Tolerance of Hydrogenothermus marinus to Sodium Perchlorate
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Beblo-Vranesevic, Kristinainstitute of aerospace medicine, radiation biology division, german aerospace center (dlr e.v.), linder höhe, 51147 cologne, germanyhttps://orcid.org/0000-0002-4834-7121
Huber, H.Institute for Microbiology and Archaea Center, Faculty of Biology and Preclinical Medicine, University of Regensburg, Regensburg, GermanyUNSPECIFIED
Rettberg, Petrainstitute of aerospace medicine, radiation biology division, german aerospace center (dlr e.v.), linder höhe, 51147 cologne, germanyhttps://orcid.org/0000-0003-4439-2395
Journal or Publication Title:Frontiers in Microbiology
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
Page Range:p. 1369
Publisher:Frontiers Media S.A.
Keywords:perchlorates, morphology, thermophiles, desiccation, survival
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Research under Space Conditions
DLR - Research theme (Project):R - Vorhaben Strahlenbiologie (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Radiation Biology
Deposited By: Kopp, Kerstin
Deposited On:20 Jul 2017 13:58
Last Modified:01 Oct 2020 19:24

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