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Gravity Effects on Paramecium Cells: An Analysis of a Possible Sensory Function of Trichocysts Exocytosis

Hemmersbach-Krause, R. and Briegleb, W. and Häder, D.-P. and Plattner, H. (1991) Gravity Effects on Paramecium Cells: An Analysis of a Possible Sensory Function of Trichocysts Exocytosis. European Journal of Protistology, 27, pp. 85-92.

Full text not available from this repository.

Abstract

The structure and mechanisms involved in gravity perception and reaction are generally not known in animal cells. To study the role of trychocysts in graviperception of Paramecium we analyzed strains with a different set-up of trichocysts for their gravitactic behavior. However, all strains investigated showed negative gravitaxis which was demonstrated by their capability to perform bioconvection and by the analysis of their swimming paths examined by computer analysis in a horizontal microscope. Therefore, any role of trichocysts in graviperception can be denied and other possible gravi-receptors might be discussed. Finally is shown that simulated weightlessness has no effect on exocytosis performance which is one of the basal capabilities of cells.

Item URL in elib:https://elib.dlr.de/26599/
Document Type:Article
Additional Information: LIDO-Berichtsjahr=1990,
Title:Gravity Effects on Paramecium Cells: An Analysis of a Possible Sensory Function of Trichocysts Exocytosis
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hemmersbach-Krause, R.UNSPECIFIEDUNSPECIFIED
Briegleb, W.UNSPECIFIEDUNSPECIFIED
Häder, D.-P.Univ. ErlangenUNSPECIFIED
Plattner, H.UNSPECIFIEDUNSPECIFIED
Date:1991
Journal or Publication Title:European Journal of Protistology
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
Volume:27
Page Range:pp. 85-92
Status:Published
Keywords:Clinostat, Exocytosis, Graviperception, Gravitaxis, Paramecium, Protozoa, Trichocysts
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:Space
DLR - Program:no assignment
DLR - Research theme (Project):UNSPECIFIED
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine
Deposited By: DLR-Beauftragter, elib
Deposited On:02 Apr 2006
Last Modified:27 Apr 2009 06:16

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