Cell Structure and Function
Online ISSN : 1347-3700
Print ISSN : 0386-7196
ISSN-L : 0386-7196
Tubulin: 30 Years Later
Loosening of a Preprophase Band of Microtubules in Onion (Allium cepa L.) Root Tip Cells by Kinase Inhibitors
Akiko NogamiYoshinobu Mineyuki
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1999 Volume 24 Issue 5 Pages 419-424


Effects of kinase inhibitors on the preprophase band of microtubules in onion (Allium cepa L.) root tip cells were examined. Bundled microtubules in preprophase bands were dispersed on the cell cortex when onion seedlings were incubated with 2.5-5.0 mM 6-dimethylaminopurine. Fifteen min was enough for the bundled microtubules to disappear. Although many preprophase bands remained when the seedlings were incubated with 60μM staurosporin, these preprophase band microtubules were loosened and the width of the band became broad. These results sugget that some kinases are involved in the microtubule bundling in the preprophase band development.

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© 1999 by Japan Society for Cell Biology
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