Proembryo A young plant after fertilization but before differentiation into embryo and suspensor tissue.原胚：从受精卵分裂形成2细胞胚开始至胚芽和胚柄等器官分化之前的胚。
TRANSFER CELLS IN SUSPENSOR AND ENDOSPERM DURING EARLY EMBRYOGENY OF VIGNA SINENSIS豇豆胚胎发育早期的胚柄及胚乳中的传递细胞