根冠原：在一些植物中覆盖根顶端分生组织的一层具有分生能力的细胞，根冠原可以产生和维持根冠。
Calyptogen a layer of meristematic cells covering the root apical meristem in some plants (e. g. grasses) that gives rise to and maintains the root cap.
芽的顶端分生组织与随后产生的根的分生组织共同构成胚状结构，与单子叶植物种子胚相似。
Embryo like structure was found being formed from shoot meristem and root meristem and it was similar with radicle and plumule of the embryo.
维管形成层属于侧生分生组织，包括能够产生次生木质部与次生韧皮部的纺锤状形成层原始细胞和产生髓射线的射线原始细胞。
It is a lateral meristem and contains fusiform initials giving rise to secondary xylem and phloem and ray initials giving rise to medullary rays. See also secondary growth.
应用推荐