megaspore

megaspore

美 ['megəˌspoʊr] 　英 ['megəspɔː]

• n.【植】大孢子
• 网络大胞子；大孢子内

词形变化

复数：megaspores  

英汉解释

n.

1. 【植】大孢子

英英解释

n.	1. the larger of two kinds of spore produced by seed plants and some ferns, which develops into a female gametophyte.

例句

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。

Of the four products of a megaspore mother cell, three usually abort.

在大孢子母细胞分裂产生的四个孢子中，三个会解体消失。

The megaspore mother cell meiosis to form a linear megaspore tetrad.

大孢子母细胞减数分裂产生直线形大孢子四分体。

In the gymnosperms the megaspore gives rise to a cell that is termed the embryo sac because of its similarity to the angiosperm structure.

在裸子植物中，大孢子也产生一个细胞，因为它类似于被子植物的胚囊细胞，故也可以称之为胚囊。

Genesis of megaspore and development of embryo sac in Carica papaya L .

番木瓜的大孢子发生与胚囊发育。