primary thickening

Cell divisions were diffused almost in the whole axis, and no primary thickening meristem occured.

结果表明：番红花球茎增粗生长是由于细胞分裂与细胞体积增大。细胞分裂几乎分散在整个轴上，没有初生增粗分生组织。

In the primary thickening process of the shoot bud wall, the contributions of each tissue were arranged from big to small as follows: vascular tissue ground tissue cortex+ epidermis.

在笋芽壁的增厚过程中，各组织的贡献率自大到小为：维管组织基本组织皮层+表皮，维管组织的分化发育是笋芽壁增厚的主要因素。

In the primary thickening process of the Phyllostachys edulis shoot bud, the contributions of different tissues were arranged as follows: pith meristem vascular tissue ground tissue cortex+ epidermis. The main factor of the primary thickening process is the proliferation and the increase of pith cells.

在笋芽的初生增粗生长过程中，各组织的贡献率自大到小为：髓分生组织维管组织基本组织皮层+表皮，髓分生组织细胞的增殖与增大是竹笋进行初生增粗生长的主要因素。

Anatomical structure of shoot apex on Angelica sinensis Genesis and Differentation of Primary Thickening Meristem in Shoot Apex of Sugarcane

当归营养苗端的解剖学观察甘蔗茎尖初生增粗分生组织的发生和分化活动

Studies on the cell division of primary thickening meristem and apical meristem of the shoot apex in sugarcane

甘蔗茎尖初生增粗分生组织与顶端分生组织细胞分裂研究

In the early stage, the cellular group of the primordium will differentiate into both of interior and exterior tissues, namely, exterior parenchyma and the saccular primary thickening meristem ( PTM) adjacent to the inside as well as interior parenchyma.

初期，原基细细胞团分化为内外两部分组织：外侧为薄壁组织及紧邻其内的囊状初生加厚分生组织，内侧为薄壁组织。