受精丝

MAPK和MPF对小鼠受精卵有丝分裂期作用

Study on function of MAPK and MPF in mitosis of mouse fertilized eggs

双受精属有丝分裂后型；

Double fertilization is of anaphase type of mitosis .

结论MAPK和MPF的活化对于小鼠受精卵完成有丝分裂是不可缺少的，在有丝分裂期MPF参与MAPK的活化。

Conclusion MAPK and MPF activation are required for mouse normal mitotic progression . MPF is involved in the activation of MAPK in metaphase .

番茄的受精作用属于有丝分裂前配子融合类型。开花后6h，胚囊已受精，退化助细胞中钙含量进一步增加；

Double fertilization is the type of the Premitotic gametogamy . Six hours after anthesis at time when double fertilization had finished , the calcium deposits in the degenerated synergid increased .

目的探讨有丝分裂促进因子（MPF）和丝裂原活化的蛋白激酶（MAPK）在小鼠受精卵第一有丝分裂期（M期）中的作用及相互关系。

Objective To study on the function of mitogen-activated protein kinase ( MAPK ) and mitosis-promoting factor ( MPF ) in the first mitosis of mouse fertilized eggs and the relationship between them .

胚囊的发育属于蓼型胚囊。在胚囊发育过程中，珠被内表皮细胞特化成珠被绒毡层。（3）受精作用属于有丝分裂前型。

The embryo sac is of Polygonum type . ( 3 ) The fertilization is of premitosis type .