珠孔 meaning in English

micropyle

One of the nuclei at the micropylar pole becomes delimited by a small amount of cytoplasm .
珠孔端有一个核，因为带有少量细胞质而变成界线分明。
Knot tie ball type at richeng
日成珠孔扎线带knot tie ball type
Enclosure of the nucellus by the integuments is incomplete , the embryo sac or , in gymnosperms , to the archegonium
珠被并不是将珠心完全封闭，而是留有珠孔以便受精时花粉管进入胚囊，或裸子植物的藏卵器。
It was also found that the nuclear envelope disappeared earlier at the micropylar end than that at the chalazal end . the speed of the programmed cell death were different in three nonfunctional megaspores at the micropylar end and their relationships with the neighboring cells were also different . the biological significance was discussed about these phenomenon
还发现了大孢子母细胞合点端的核膜先于珠孔端的消失，并且珠孔端3个大孢子的死亡时间不同，与相邻细胞的关系也不同，进而讨论了这些现象的生物学意义。