Then embryogenic cell divided into two cells, which sequentially differentiated through multicell proembryo, globular, heart-shaped and cotyledonary embryo stages.
胚性细胞分裂产生两个细胞，进而分化发育成多细胞原胚、球形胚、心形胚及子叶胚。
Changes of endogenous hormones and polyamines (PAs) contents during floral differentiation (0-6 day) in cucumber cotyledonary nodes cultured in vitro were determined by using HPLC.
