megaspore

常见例句

Megaspore tetrad is linear. The chalazal megaspore develops into an embryo sac of Polygonum type.
大孢子四分体为线形，合点端功能大孢子发育成为蓼型胚囊。
In theterosporous species, a distinction is usually made between megaspore mother cells and microspore mother cells.
在异型孢子体种类中，可区分为大孢子母细胞和小孢子母细胞。
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A single archesporium differentiates immediately below the nucellar epidermis, it functions directly the megaspore mother cell.
孢原细胞处于珠心表皮之下，直接起大孢子母细胞的功能。