[Use of methyl-3 hydroxy-6 quinazoline dione-2-4 to study effect of other compounds on mitosis duration in root meristems: application to phenylurethane].

Methyl-3 hydroxy-6 quinazolin dione-2-4 inhibits plant cell cytokinesis while modifying neither the duration of the cell cycle nor the duration of mitosis. Adding it to a solution of another compound enables one to determine the influence exerted by this compound on the duration of mitosis. This method, applied to phenylurethane, leads to see a slowing down of mitosis followed by a somewhat quick adaptation of the cells.