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Gravitaxis in Flagellates and Ciliates

Häder, Donat-Peter and Hemmersbach, Ruth (2018) Gravitaxis in Flagellates and Ciliates. In: Gravitational Biology I. Gravity Sensing and Graviorientation in Microorganisms and Plants SpringerBriefs in Space Life Sciences. Springer Nature. pp. 27-45. doi: 10.1007/978-3-319-93894-3_3. ISBN 978-3-319-93893-6. ISSN 2196-5560.

Full text not available from this repository.

Official URL: https://link.springer.com/chapter/10.1007/978-3-319-93894-3_3


Motile microorganisms such as flagellates and ciliates use the gravity vector of the Earth to adjust their position in the water column. Oriented movement by gravity is called gravitaxis and can be positive (downward swimming) or negative (upward swimming). In addition, some ciliates modify their velocity according to the swimming direction (gravikinesis). Earth-bound research and experimentation under simulated and real microgravity have revealed that a heavy mass such as a statolith or the whole cell content presses onto a gravireceptor which perceives the signal. In some cases mechanosensitive ion channels have been identified as gravireceptors. The activation of the receptor results in a cascade of reactions which amplify the signal and result in a steering response changing the direction of movement.

Item URL in elib:https://elib.dlr.de/125736/
Document Type:Book Section
Title:Gravitaxis in Flagellates and Ciliates
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Häder, Donat-PeterEmeritus from Friedrich-Alexander-Universität Erlangen, Institut of Biology, Erlangen, Germanyhttps://orcid.org/0000-0002-4295-5660UNSPECIFIED
Hemmersbach, Ruthgerman aerospace centre (dlr), institute of aerospace medicine, gravitational biology, cologne, germanyhttps://orcid.org/0000-0001-5308-6715UNSPECIFIED
Date:21 July 2018
Journal or Publication Title:Gravitational Biology I. Gravity Sensing and Graviorientation in Microorganisms and Plants
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 27-45
EditorsEmailEditor's ORCID iDORCID Put Code
Braun, MarkusGerman Aerospace Center (DLR), Space ManagemengtUNSPECIFIEDUNSPECIFIED
Böhmer, MaikUniversity of FrankfurtUNSPECIFIEDUNSPECIFIED
Häder, Donat-PeterUniversity of ErlangenUNSPECIFIEDUNSPECIFIED
Hemmersbach, RuthGerman Aerospace Center (DLR), Institute of Aerospace MedicineUNSPECIFIEDUNSPECIFIED
Palme, KlausUniversity of FreiburgUNSPECIFIEDUNSPECIFIED
Publisher:Springer Nature
Series Name:SpringerBriefs in Space Life Sciences
Keywords:Ciliates, Flagellates, Gravitaxis, Gravikinesis, Mechanosensitive ion channels, Sensory transduction chain
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Research under Space Conditions
DLR - Research theme (Project):R - Vorhaben Biowissenschaftliche Exp.-vorbereitung (old), R - Vorhaben Biowissenschaftliche Nutzerunterstützung (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Gravitational Biology
Deposited By: Duwe, Helmut
Deposited On:10 Jan 2019 14:09
Last Modified:03 Aug 2023 08:47

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