oogonium

In the first phase, the oogonium has little cytoplasm and bigger nuclear-cytoplasmic ratio.

第1时相，原质少，核质比。

The proliferative phase of the oogonium was found in the gestational age between 41d and 84d.

原增殖期为41-84天胎龄间，而增殖高峰在41-48天间现。

A group of cells at the tip of the oogonium in certain green algae (Chlorophyta), such as the stonewort Chara and the mermaid's cup (Acetabularia).

2某些绿色藻类（绿藻门）中颈器顶部的一组，如轮藻属和伞藻属的冠。