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Cellular Functions of Paramecium under Different Conditions.

Hemmersbach-Krause, R. and Briegleb, W. and Häder, D.-P. (1) (1990) Cellular Functions of Paramecium under Different Conditions. In: Fourth European Symposium on Life Science in Space, ESA SP-307. Fourth European Symposium om Life Science in Space, 28 May-1 June 1990, Triest, Italy.

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Abstract

Computer analysis of the negative gravitactic behavior of Paramecium observed in a horizontal microscope provided the following results: There exists a strong correlation between oxygen concentration within the medium and the degree of gravitaxis, and swimming velocity. Treatment of Paramecium with the metabolic uncoupler CCCP had no influence on the negative gravitaxis. In another set of experiments proliferation of differents strains of Paramecium was investigated on the clinostat. All tested strains showed larger fluctuations between cell numbers if two daughter cells were cultivated under 1 g and simulated 0 g than if both cells werte cultivated under 1 g. Statistical analysis of these differences revealed a significantly higher proliferation of homozygous Paramecium tetraurelia 7s under simulated 0 g.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1990, pages=6,
Title:Cellular Functions of Paramecium under Different Conditions.
Authors:
AuthorsInstitution or Email of Authors
Hemmersbach-Krause, R.UNSPECIFIED
Briegleb, W.UNSPECIFIED
Häder, D.-P. (1)UNSPECIFIED
Date:1990
Journal or Publication Title:Fourth European Symposium on Life Science in Space, ESA SP-307
Series Name:ESA SP-307
Status:Published
Keywords:Paramecium, Gravitaxis, Geotaxis, Graviperception, Proliferation
Event Title:Fourth European Symposium om Life Science in Space, 28 May-1 June 1990, Triest, Italy
HGF - Research field:UNSPECIFIED
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:no assignment
DLR - Research theme (Project):UNSPECIFIED
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine
Deposited By: elib DLR-Beauftragter
Deposited On:02 Apr 2006
Last Modified:27 Apr 2009 06:16

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