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Please use this identifier to cite or link to this item: http://hdl.handle.net/10373/490

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Title: Changes in calcium and magnesium levels during heat-shock synchronized cell division in tetrahymena
Authors: Walker, Graeme M.
Zeuthen, Erik
Affiliation: University of Abertay Dundee. School of Contemporary Sciences
Keywords: Calcium
Magnesium
Tetrahymena
Protozoon
In vitro study
Heat stroke
Issue Date: Jun-1980
Publisher: Elsevier
Type: Journal Article
Refereed: peer-reviewed
Rights: Published version (c)Elsevier, available from: doi: 10.1016/0014-4827(80)90461-9
Citation: Walker, G.M. and Zeuthen, E. 1980. Changes in calcium and magnesium levels during heat-shock synchronized cell division in tetrahymena. Experimental Cell Research. 127(2): pp.487-490
Abstract: Calcium and magnesium contents were measured in cells of Tetrahymena pyriformis induced to divide synchronously by a multi-heat-shock procedure. During free-running synchronized cell division in complex proteose peptone medium, significant peaks of both calcium and magnesium were observed at points in the cell cycle just prior to division. No such peaks were detected in cells dividing asynchronously in proteose peptone. When synchronized cell division was followed after transfer to an inorganic medium, cell calcium and magnesium levels were observed to decrease in relation to the corresponding cell number increase, indicating that in concentration terms, calcium and magnesium remain fairly constant. This latter result suggests that neither calcium nor magnesium influxes act as triggers for cell division in Tetrahymena and that the fluctuations of these metals seen during the synchronized division cycle in complex medium represent an effect rather than a cause.
URI: http://hdl.handle.net/10373/490
ISSN: 0014-4827
Appears in Collections:Science Engineering & Technology Collection

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