Calcium is necessary for motility in the diatom Amphora coffeaeformis

The marine diatom Amphora coffeaeformis required Ca2+ and bicarbonate for motility. Movement was inhibited by the Ca2+-blocking agents ruthenium red and α-isopropyl-α-[(N-methyl-N-homoveratryl)-α-aminopropyl]-3,4,5-t rimethoxy phenyl acetonitrile and the metabolic energy uncoupler, carbonyl cyanide...

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Bibliographic Details
Published in:Plant physiology (Bethesda) 1980, Vol.65 (1), p.129-131
Main Authors: Cooksey, B, Cooksey, K E
Format: Article
Language:English
Subjects:
Amphorae
Bicarbonates
Calcium
Cultured cells
Diatoms
Glass
Microscope slides
Photosynthesis
Respiration
Ruthenium
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Summary:The marine diatom Amphora coffeaeformis required Ca2+ and bicarbonate for motility. Movement was inhibited by the Ca2+-blocking agents ruthenium red and α-isopropyl-α-[(N-methyl-N-homoveratryl)-α-aminopropyl]-3,4,5-t rimethoxy phenyl acetonitrile and the metabolic energy uncoupler, carbonyl cyanide 3-chlorophenylhydrazone. 3-(3′,4-Dichlorophenyl)-1,1-Dimethyl urea was without effect on cells at a concentration that prevented O2 production in the light. Although Sr2+ could replace Ca2+ in the attachment of cells to glass, it did not substitute for Ca2+ in motility.
ISSN:0032-0889
1532-2548
DOI:10.1104/pp.65.1.129