The response of bean plants to different levels of molybdenum (Mo) in
nutrient solution was investigated-the processes of uptake, distributi
on and accumulation of Mo. This experiment showed the behaviour of Mo
in bean plants. Mo uptake depended on the Mo concentration in solution
and Mo content in roots, stems and leaves increased as the time of tr
eatment increased. It seemed to exist a metabolic mechanism for limiti
ng Mo uptake when Mo availability for roots increased. We have confirm
ed the relationship between Mo distribution in plant and nitrogen meta
bolism. The high values of Mo accumulated in plant did not cause visua
l damages to bean plants.