| The mechanics of gravitaxis in Paramecium. | |
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MedLine Citation:
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PMID: 21112996 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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An analysis of swimming patterns in the ciliate Paramecium shows that the ability to swim preferentially upwards (negative gravitaxis) is primarily the result of upwardly curving trajectories. The trajectory characteristics are consistent with those produced by mechanical orientation. Cell profile measurements from microscope images suggest that the characteristic front-rear body asymmetry accounts for the observed orientation rates. Gravikinesis may result from interactions between the propelling cilia and the sedimentary flow around the cell, and it seems unlikely that an internal physiological gravity receptor exists in Paramecium. |
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Authors:
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A M Roberts |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Journal of experimental biology Volume: 213 ISSN: 1477-9145 ISO Abbreviation: J. Exp. Biol. Publication Date: 2010 Dec |
Date Detail:
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Created Date: 2010-11-29 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0243705 Medline TA: J Exp Biol Country: England |
Other Details:
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Languages: eng Pagination: 4158-62 Citation Subset: IM |
Affiliation:
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Department of Applied Science, London South Bank University, London SE1 0AA, UK. amr@physics.org |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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