The effect of polyethylene glycol (PEG) on shoot redifferen- tiation of endosperm-derived callus in Eucommia ulmoides Organogenesis of Lear Explants of Momordica grosvenori Swingle In Vitro Cell Fate Switch during In Vitro Plant Organogenesis Relative Physiological and Biochemical Features of Redifferentiation Differencein Three Types of Calli Subculture in Anthurium andraeanum Establishment of In Vitro Regeneration System of the Atrichum Mosses In vitro Propagation, Dedifferentiation and redifferentiation of Marchantia polymorpha L. Regeneration of Peach Plantlet from Callus Derived from Explant Regeneration of Peach Plantlet from Callus Derived from Explant