Intranuclear and Cytoplasmic Inclusions in Embryogenic and Embryoidal Cells of Panax quinque folius

The presence of intranuclear and cytoplasmic inclusions in cells of embryogenic callus and developing embryoids from tissue cultures of Panax quinquefolius L. was described. These cellular structures were not found in non-embryogenic cells. The size of intranuclear and cytoplasmic inclusions seemed to be related to the developmental status of the cell.