micropyle

英 ['maɪkrəpɪl] 美 ['maɪkrəpɪl]

• n. 珠孔

英英释义

Noun:

1. minute opening in the wall of an ovule through which the pollen tube enters

例句

用作名词 (n.)

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。