micropyle

micropyle

美 ['maɪkrəpɪl] 　英 ['maɪkrəpɪl]

• n.【植】珠孔；卵孔；【动】卵(膜)孔
• 网络卵膜孔；精孔；有个精孔

词形变化

复数：micropyles  

英汉解释

n.	1. 【植】珠孔;卵孔 2. 【动】卵(膜)孔

英英解释

n.	1. a small opening in the covering of the ovule of a plant through which the pollen tube passes prior to fertilization 2. a small pore in the membrane of an insect egg that allows sperm to enter and fertilize the egg

例句

At the center is a minute opening, called a micropyle, through which the sperm enters the egg.

它的中央有个微小的开口，称为卵孔，精子通过这个孔进入卵内。

After fertilization through the micropyle, the zygote turned into dormancy status without certain time phase.

成熟胚囊经珠孔受精后，合子休眠，休眠时间不确定。

In third stage, at maturing of the embryo sac, pollen tubes grow directionally toward micropyle into embryo sac.

朝珠孔定向生长阶段，胚囊成熟时，花粉管朝珠孔定向生长进入胚囊。

Porogamy The usual method of fertilization in angiosperms in which the pollen tube enters the ovule by the micropyle. Compare chalazogamy.

被子植物通常的受精方式。花粉管通过珠孔进入胚珠。比较。

In radicle areas, there are palisade cells and a lucuna which located above micropyle and formed via knockdown parenchyma cells .

胚根区有栅栏状细胞，珠孔区以上有薄壁细胞解体后形成的断裂层。

On this butterfly egg, the lacy pattern marks the micropyle, where sperm enters.

在这种蝴蝶卵上，花边图案表示精子进入的卵孔。

micropyle Opening in egg capsule through which spermatozoa enter.

卵孔在精子进入过打开的卵鞘。

micropyle formed by inner integument or by both integuments.

珠孔由内珠被或者两层珠被形成。

There the sperm must find and swim through an opening at one end of the egg, the micropyle.

精子必须寻找到卵，并从一端的珠孔（micropyle）游入其中。

Developmental Morphology of Obturator and Micropyle and Pathway of Pollen Tube Growth in Ovary in Phellodendron amurense (Rutaceae)

黄檗（芸香科）的珠孔塞和珠孔的形态发育及花粉管在子房室中的生长路径

The central cell located at the embryo sac central committee, 2 polar nuclei approaches the micropyle end the egg cell;

中央细胞位于胚囊的中央，2个极核靠近珠孔端的卵细胞；

Building of Mathematical Model of Unusual Structure on Teleost's Micropyle

真骨鱼卵膜孔奇异结构的数学建模

Helps cell's big vacuole located at to gather an end, but egg cell's big vacuole located at micropyle end;

助细胞的大液泡位于合点端，而卵细胞的大液泡位于珠孔端；

ovule 1, pendulous, anatropous, micropyle closed;

胚珠1，倒生，珠孔关闭；

ovules 2, rarely 1 per locule, pendulous from apex, anatropous with abaxial raphe and micropyle facing upward;

子房每室2（很少1）胚珠，从顶端下垂，倒生，背面有种脊，珠孔向上；