The apoptosis of suspension cultured cells of Viola diffusa Ging. which had been induced by Ce(NH4)2(NO3)6 were detected by DNA Laddering and DAPI fluorescence stain methods.

• 用DNA Laddering和DAPI荧光检测法对Ce(NH4)2(NO3)6诱导的蔓茎堇菜(Viola diffusa Ging.；)