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Comparative studies on gravisensitive protists on ground (2D and 3D clinostats) and in microgravity

Hemmersbach, Ruth and Strauch, Sebastian M. and Seibt, Dieter and Schuber, Marianne (2006) Comparative studies on gravisensitive protists on ground (2D and 3D clinostats) and in microgravity. Microgravity Science and Technology, XVIII, pp. 257-259. ZARM Technik Publishing. ISSN 0938-0108.

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In order to prepare and support space experiments, 2D and 3D clinostats are widely applied to study the influence of simulated weightlessness on biological systems. In order to evaluate the results, a comparison between the data obtained in simulation experiments and in real microgravity is necessary. We are currently analyzing the gravity-dependent behaviour of the protists Paramecium biaurelia (ciliate) and Euglena gracilis (photosynthetic flagellate) on these different experimental platforms. So far, first results are presented concerning the behaviour of Euglena on a 2D fast rotating clinostat and a 3D clinostat as well as under real microgravity conditions (TEXUS sounding rocket flight), of Paramecium on a 2D clinostat and in microgravity. Our data show similar results during 2D and 3D clinorotation compared to real microgravity with respect to loss of orientation (gravitaxis) of Paramecium and Euglena and a decrease of linearity of the cell tracks of Euglena. However, the increase of the mean swimming velocities, especially during 3D clinorotation (Euglena) and 2D clinoratation of Paramecium might indicate a persisting mechanostimulation of the cells. Further studies including long-term 2D and 3D clinostats exposition will enable us to demonstrate the qualification of the applied simulation methods.

Item URL in elib:https://elib.dlr.de/46046/
Document Type:Article
Title:Comparative studies on gravisensitive protists on ground (2D and 3D clinostats) and in microgravity
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Strauch, Sebastian M.Friedrich-Alexander University ErlangenUNSPECIFIEDUNSPECIFIED
Journal or Publication Title:Microgravity Science and Technology
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 257-259
Publisher:ZARM Technik Publishing
Keywords:gravitaxis, graviperception, microgravity, clinostat
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W FR - Forschung unter Weltraumbedingungen (old)
DLR - Research area:Space
DLR - Program:W FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):W - Vorhaben Biowissenschaftliche Nutzerunterstützung (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Biomedical Science Support Center
Deposited By: Lütz, Gertrud
Deposited On:13 Dec 2006
Last Modified:27 Apr 2009 13:18

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