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原胚

网络proembryo; RAW; proembryo proembryo

原胚

原胚

proembryo

胚在没有出现分化前的阶段，称为原胚(proembryo)。顶细胞和基细胞形成后，即为2—细胞原胚。

RAW

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proembryo proembryo

...的，经过胚的发生是从合子开始的，经过原胚原胚 ( ( proembryo proembryo ) ) 和和胚的胚的分化分化发育阶段，最 …

2

Many forest tree species have multiple archegonia which , after fertilization produce a number of proembryos .

许多林木树种都有颈卵器，受精以后便产生许多原胚。

3

At the late proembryo stage , the cells in the top part of the camp column were gradually deformed and degenerated.

到了原胚游离核后期，帐篷柱的顶端细胞发生变形解体。

4

The proembryo from zygotic cell divisions may be divided into three parts: proper, hypoblast and suspensor .

玉米合子细胞分裂形成的原胚分为胚柄、胚基与胚体三部分。

5

Proembryo absorbed nutrition in corrosion cavity and grew , developed.

原胚吸收溶蚀腔中的营养，生长发育。

6

After fertilization , the zygote and the proembryo also lie in the chalazal end .

受精后，合子和原胚亦位于合点端。

7

When they were divided again , proembryo containing 16 cells was formed .

它们再分裂 1 次，形成 16 个细胞的原胚。

8

and (4) proembryo formation includes a period of free nuclear and cellularization phases.

原胚的形成经历了游离核期和细胞化期。

9

Conclusion GA3 and Z can promote germination of American ginseng seed , but cannot ignite the development of proembryo.

结论 GA3 和 Z 是西洋参种子萌发促进因子，而不能启动原胚的起始发育。

10

the multicellular embryo is developed from periclinal division primarily , and accordantly grows regularly;

多细胞原胚形成的分裂方式以平周分裂为主，并由此表现出有序生长；

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