micropyle

n.

珠孔，卵孔；

1. The micropyle was formed by the inner integument.
   珠孔由内珠被形成。
2. The development of the obturator and the micropyle correlates with that of the female gametophyte in P. amurense.
   黄檗珠孔塞和珠孔的发育与雌配子体发育存在密切关系。

Micropyle of some salmonins and coregonins
The micropyle: a sperm guidance system in teleost fertilization.
The Role of the Micropyle in the Pollination of Pinus
The micropyle of trout eggs and its reaction to different incubation media
Sperm attractant in the micropyle region of fish and insect eggs.
The nucellar epidermis and micropyle of Ornithogalum caudatum (Liliace...
The vitelline envelope, chorion, and micropyle of Fundulus heteroclitus eggs
Ultrastructure of the chorion and its micropyle apparatus in the mature Fundulus heteroclitus (Walbaum) ovum
Ultracytochemical localization of calcium in the stigma, style and micropyle of sunflower
The Drosophila JNK pathway controls the morphogenesis of the egg dorsal appendages and micropyle.