They are located in tissues (the apical meristems) at the growing points of roots and stems . 它们位于根和茎的生长点组织(顶端分生组织)中。
It is implicated in the uptake of calcium , the development of apical meristems , and pollen germination 它还与钙的吸收,顶端分生组织发育和花粉萌发有关。
Primary growth growth derived solely from meristems present in the embryo , i . e . apical meristems 初生生长:指完全起源于胚芽分生组织即顶端分生组织的生长。
The term is used particularly in relation to a part of the apical meristem that later differentiates further 该名词也用于指随后进一步发育的顶端分生组织。
Quiescent center a group of cells in the center of the apical meristem in which mitotic divisions are rate or absent 静止中心:在根的顶端分生组织中心区域的一些细胞,它们几乎不进行有丝分裂。