Influence of benzimidazole on callus growth and shoot formation on callus cultures

The influence of benzimidazole on callus growth and shoot formationin vitro was examined. At concentrations of 8.5 x 10^–4mMto 8.5 x 10^–1mM benzimidazole failed to stimulate callusgrowth or shoot formation. Concentrations of 0.85 mM and 1.7mM inhibited kinetin-dependent callus growth while lower concentrationswere without effect. It may be inferred that benzimidazole hasno cell division properties such as is associated with the cytokinins,though it mimics, in appearance, cytokinins actions in severalphysiological processes. (Received August 12, 1975; )