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Adaptation Strategies of Antarctic Lichens in Polar Habitats and during Mars Simulation experiments

de Vera, J.-P.P. und Lorek, A. und Koncz, A. (2011) Adaptation Strategies of Antarctic Lichens in Polar Habitats and during Mars Simulation experiments. In: CAREX Abstracts. CAREX Conference on Life in Extreme Environments 2011, 18.-20. Okt 2011, Dublin, Irland. (nicht veröffentlicht)

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Kurzfassung

Measurements on photosynthetic activity of Antarctic lichens were done in the Transantarctic Mountains during the 10th German Antarctic North Victoria Land Expedition (GANOVEX 10) and during Mars simulation experiments in the Mars simulation chamber at the German Aerospace Centre (DLR) Berlin. In parallel measurements on environmental parameters like radiation, humidity, temperature and atmospheric composition were performed in the field as well as in the Mars simulation chamber. The aim was to get information about probable influences of each parameter on photosynthesis in both of the mentioned extreme locations. Observations and results obtained during the field campaigns performed in different altitudes in a transect of in total 200 km from the coast to the inner side of the Antarctic continent are showing colonizing and adaptive strategies which allow to resist to the very high UV radiation income, the very low temperature ranges and low humidity of the investigated habitats without important negative effects on photosynthesis. The adaptation capacity of the investigated lichens is even larger than expected because one of the chosen Antarctic lichen from these characterized polar habitats was also able to photosynthesise and to increase its photosynthetic activity during a Mars simulation experiment of about one month duration time.

Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Adaptation Strategies of Antarctic Lichens in Polar Habitats and during Mars Simulation experiments
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
de Vera, J.-P.P.jean-pierre.devera@dlr.de
Lorek, A.Andreas.Lorek@dlr.de
Koncz, A.Alexander.Koncz@dlr.de
Datum:Oktober 2011
Erschienen in:CAREX Abstracts
Status:nicht veröffentlicht
Stichwörter:lichens, symbiotic eukaryotes, Polar environments, Terrestrial environments, Space/Planetary bodies
Veranstaltungstitel:CAREX Conference on Life in Extreme Environments 2011
Veranstaltungsort:Dublin, Irland
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:18.-20. Okt 2011
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Erforschung des Weltraums
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R EW - Erforschung des Weltraums
DLR - Teilgebiet (Projekt, Vorhaben):R - Vorhaben Exploration des Sonnensystems
Standort: Berlin-Adlershof
Institute & Einrichtungen:Institut für Planetenforschung > Planetenphysik
Hinterlegt von: Dr. Jean Pierre Paul de Vera
Hinterlegt am:10 Jan 2012 08:32
Letzte Änderung:10 Jan 2012 08:32

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