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Limits of survival: The effect of mars-like conditions, irradiation and humidity on the vitality of bryophyte species

Fiedler, A. and Huwe, B. and de Vera, Jean Pierre Paul and Joshi, J. (2014) Limits of survival: The effect of mars-like conditions, irradiation and humidity on the vitality of bryophyte species. EANA 2014, 13.-16. Okt. 2014, Edinburgh, UK.

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Official URL: http://www.astrobiology.ac.uk/files/2013/03/Abstract-Book-EANA.pdf


Due to their ability of desiccation tolerance Bryophytes are able to colonize extreme habitats. Pretests show the remarkable resistance of Grimmia sessitiana to simulated space vacuum, Mars-like atmosphere, extreme temperatures, UVC radiation and desiccation. These are results from the BIOMEX-project (Biology and Mars Experiment)- a space experiment on the exposure platform EXPOSE-R2 on the International Space Station (ISS) (unpublished). As a contribution to the BIOMEX-project, we investigate in addition to Grimmia sessitiana, other species that may survive simulated mars-and space-like conditions. This work aims to give an overview about survival, damage of photosynthesis-apparature and germination of the examinated species after exposure to (I) mars conditions and (II) earth conditions under different doses of irradiation and different levels of humidity. Therefore different moss species with different morphological adaptations to extreme environmental conditions are used. The plant material was taken from Grimmia sessitana ,Grimmia alpestris, Grimmia pulvinata, Ceratodon purpureus, Tortula muralis and Polytrichum piliferum as well as spores from Grimma pulvinata.To simulate mars-conditions and UV- irradiation we used the Mars simulation Facility of the German Aerospace Center (DLR) in Berlin.

Item URL in elib:https://elib.dlr.de/94144/
Document Type:Conference or Workshop Item (Poster)
Title:Limits of survival: The effect of mars-like conditions, irradiation and humidity on the vitality of bryophyte species
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Fiedler, A.University of Potsdam, Institute for Biochemistry and Biology, Biodiversity research and Botany, Maulbeerallee 1, 14469 Potsdam, GermanyUNSPECIFIED
Huwe, B.University of Potsdam, GermanyUNSPECIFIED
de Vera, Jean Pierre Pauljean-pierre.devera (at) dlr.deUNSPECIFIED
Joshi, J.University of Potsdam, GermanyUNSPECIFIED
Date:13 October 2014
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:bryophytes; survival; Mars-like conditions; irradiation; vitality
Event Title:EANA 2014
Event Location:Edinburgh, UK
Event Type:international Conference
Event Dates:13.-16. Okt. 2014
Organizer:UK Centre for Astrobiology
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Vorhaben Exploration des Sonnensystems
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Experimentelle Planetenphysik
Deposited By: de Vera, Dr. Jean Pierre Paul
Deposited On:06 Jan 2015 11:06
Last Modified:31 Jul 2019 19:51

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