embryo sac [植] 胚囊
embryo sac mother cell 大孢子母细胞 ; [植] 胚囊母细胞
bisporic embryo sac [植] 双孢子胚囊 ; [植] 双孢胚囊
tetrasporic embryo sac [植] 四孢子胚囊
Through paraffin section,we can see that the embryogenesis was originated inside the embryo sac.
通过石蜡切片初步观察了孤雌生殖的胚胎发生过程,发现胚胎发生是从胚囊里的单倍体细胞起源的。
参考来源 - 玉米的单倍体育种及基因转化的研究The mature embryo sac is growth after spread pollen 4~6 days.
胚囊的成熟发生于散粉后第4~6天。
参考来源 - 南蛇藤(Celastrus orbiculatus Thunb.)胚胎学研究·2,447,543篇论文数据,部分数据来源于NoteExpress
N the structure within a plant ovule that contains the egg cell: develops from the megaspore and contains the embryo plant and endosperm after fertilization 胚囊
Megaspore tetrad is linear. The chalazal megaspore develops into an embryo sac of Polygonum type.
大孢子四分体为线形,合点端功能大孢子发育成为蓼型胚囊。
A mature embryo sac is composed of egg apparatuses (two synergids and one egg cell), central cells and three antipodal cells.
成熟胚囊包含卵器(由两个助细胞、一个卵细胞组成),中央细胞及三个反足细胞。
TyPes of endosPerm and embryo sac and structural feature of susPensor were also discussed.
还对沙打旺胚柄的构造特点,胚乳和胚囊的类型等进行了讨论。
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