孔端 [
kǒng duān]
nose end
- 中央细胞在珠孔端与胚囊壁相邻的部位形成壁内突。
Wall ingrowths occurred in central cell at micropylar region near embryo sac wall. - 接着,位于珠心组织最上部(珠孔端)的珠心细胞启始死亡;
Firstly, several layers of the nucellar cells at the micropylar end elongate longitudinally. - 减数分裂前,大孢子母细胞的核偏向合点端,核内出现核液泡,细胞器分布均匀,内质网多位于珠孔端。
At leptotene, the distribution of organelle was polarized.
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