Adaptation of an Antarctic lichen to Martian niche conditions can occur within 34 days
Stresses occurring on the Martian surface were simulated in a Mars Simulation Chamber (MSC) and included high UV fluxes (Zarnecki et al., 2002), low temperatures, low water activity, high atmospheric CO2 concentrations, and an atmospheric pressure of about 800 Pa (Kasting, 1991, Head et al., 2003)....
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ftdlr:oai:elib.dlr.de:83655 2023-12-31T09:59:25+01:00 Adaptation of an Antarctic lichen to Martian niche conditions can occur within 34 days de Vera, Jean Pierre Paul Schulze-Makuch, D. Khan, A. Lorek, Andreas Koncz, Alexander Möhlmann, D. Spohn, Tilman 2013-07-31 application/pdf https://elib.dlr.de/83655/ https://elib.dlr.de/83655/1/de_Vera_et_al_Antarctic_Lichen-Martian_niche_conditions-2013.pdf de ger Elsevier https://elib.dlr.de/83655/1/de_Vera_et_al_Antarctic_Lichen-Martian_niche_conditions-2013.pdf de Vera, Jean Pierre Paul und Schulze-Makuch, D. und Khan, A. und Lorek, Andreas und Koncz, Alexander und Möhlmann, D. und Spohn, Tilman (2013) Adaptation of an Antarctic lichen to Martian niche conditions can occur within 34 days. Planetary and Space Science. Elsevier. doi:10.1016/j.pss.2013.07.014 <https://doi.org/10.1016/j.pss.2013.07.014>. ISSN 0032-0633. Experimentelle Planetenphysik Planetare Sensorsysteme Leitungsbereich PF Zeitschriftenbeitrag PeerReviewed 2013 ftdlr https://doi.org/10.1016/j.pss.2013.07.014 2023-12-04T00:23:54Z Stresses occurring on the Martian surface were simulated in a Mars Simulation Chamber (MSC) and included high UV fluxes (Zarnecki et al., 2002), low temperatures, low water activity, high atmospheric CO2 concentrations, and an atmospheric pressure of about 800 Pa (Kasting, 1991, Head et al., 2003). The lichen Pleopsidium chlorophanum is an extremophile that lives in very cold, dry, high-altitude habitats, which are Earth's best approximation of the Martian surface. Samples with P. chlorophanum were exposed uninterruptedly to simulated conditions of the unprotected Martian surface (i.e. 6344 kJm-2) and protected niche conditions (269 kJm-2) for 34 days. Under unprotected Martian surface conditions the fungal symbiont decreases its metabolic activity and it was unclear if the algal symbiont of the lichen was still actively photosynthesizing. However, under ―protected site― conditions, the entire lichen not only survived and remained photosynthetically active, it even adapted physiologically by increasing its photosynthetic activity over the 34 days. Article in Journal/Newspaper Antarc* Antarctic German Aerospace Center: elib - DLR electronic library Planetary and Space Science 98 182 190 |
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Open Polar |
collection |
German Aerospace Center: elib - DLR electronic library |
op_collection_id |
ftdlr |
language |
German |
topic |
Experimentelle Planetenphysik Planetare Sensorsysteme Leitungsbereich PF |
spellingShingle |
Experimentelle Planetenphysik Planetare Sensorsysteme Leitungsbereich PF de Vera, Jean Pierre Paul Schulze-Makuch, D. Khan, A. Lorek, Andreas Koncz, Alexander Möhlmann, D. Spohn, Tilman Adaptation of an Antarctic lichen to Martian niche conditions can occur within 34 days |
topic_facet |
Experimentelle Planetenphysik Planetare Sensorsysteme Leitungsbereich PF |
description |
Stresses occurring on the Martian surface were simulated in a Mars Simulation Chamber (MSC) and included high UV fluxes (Zarnecki et al., 2002), low temperatures, low water activity, high atmospheric CO2 concentrations, and an atmospheric pressure of about 800 Pa (Kasting, 1991, Head et al., 2003). The lichen Pleopsidium chlorophanum is an extremophile that lives in very cold, dry, high-altitude habitats, which are Earth's best approximation of the Martian surface. Samples with P. chlorophanum were exposed uninterruptedly to simulated conditions of the unprotected Martian surface (i.e. 6344 kJm-2) and protected niche conditions (269 kJm-2) for 34 days. Under unprotected Martian surface conditions the fungal symbiont decreases its metabolic activity and it was unclear if the algal symbiont of the lichen was still actively photosynthesizing. However, under ―protected site― conditions, the entire lichen not only survived and remained photosynthetically active, it even adapted physiologically by increasing its photosynthetic activity over the 34 days. |
format |
Article in Journal/Newspaper |
author |
de Vera, Jean Pierre Paul Schulze-Makuch, D. Khan, A. Lorek, Andreas Koncz, Alexander Möhlmann, D. Spohn, Tilman |
author_facet |
de Vera, Jean Pierre Paul Schulze-Makuch, D. Khan, A. Lorek, Andreas Koncz, Alexander Möhlmann, D. Spohn, Tilman |
author_sort |
de Vera, Jean Pierre Paul |
title |
Adaptation of an Antarctic lichen to Martian niche conditions can occur within 34 days |
title_short |
Adaptation of an Antarctic lichen to Martian niche conditions can occur within 34 days |
title_full |
Adaptation of an Antarctic lichen to Martian niche conditions can occur within 34 days |
title_fullStr |
Adaptation of an Antarctic lichen to Martian niche conditions can occur within 34 days |
title_full_unstemmed |
Adaptation of an Antarctic lichen to Martian niche conditions can occur within 34 days |
title_sort |
adaptation of an antarctic lichen to martian niche conditions can occur within 34 days |
publisher |
Elsevier |
publishDate |
2013 |
url |
https://elib.dlr.de/83655/ https://elib.dlr.de/83655/1/de_Vera_et_al_Antarctic_Lichen-Martian_niche_conditions-2013.pdf |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
https://elib.dlr.de/83655/1/de_Vera_et_al_Antarctic_Lichen-Martian_niche_conditions-2013.pdf de Vera, Jean Pierre Paul und Schulze-Makuch, D. und Khan, A. und Lorek, Andreas und Koncz, Alexander und Möhlmann, D. und Spohn, Tilman (2013) Adaptation of an Antarctic lichen to Martian niche conditions can occur within 34 days. Planetary and Space Science. Elsevier. doi:10.1016/j.pss.2013.07.014 <https://doi.org/10.1016/j.pss.2013.07.014>. ISSN 0032-0633. |
op_doi |
https://doi.org/10.1016/j.pss.2013.07.014 |
container_title |
Planetary and Space Science |
container_volume |
98 |
container_start_page |
182 |
op_container_end_page |
190 |
_version_ |
1786838101213052928 |