查询词典 egg cells

In the present review, we focus on some of the recent advances and some key developmental events revealed in the fertilization process, including the role of the egg apparatus in guiding pollen tube orientation, sperm cell movement to their targeting cells, interaction between gametes, egg cell activation, and onset of embryogenesis and endosperm development.

本文着重讨论受精作用的若干重要发育事件，包括受精前卵器细胞对花粉管向胚珠定向生长的近距离引导信号，精子的靶向运动，精、卵细胞相互作用和配子融合后卵细胞的激活与中央细胞发育的启动等。

Once within the egg wall, the sperm's nucleus is drawn toward the egg's. The two cells gradually and gracefully become one.

精子进入了卵子后，它的细胞核就会向卵子的细胞核移动，慢慢结合为一个，而两个细胞也变成一个细胞，这个过程叫做受精。

Two polar nuclei move to the micropylar end before sperm is released in a gap between the egg cell and central cell and subsequently taking off cytoplasm one after another. The sperm nucleus moving to the egg nucleus runs faster than the one to the polar nuclei. It fuses with the polar nuclei that are moving towards the antipodal cells at the chalazal end.

精子释放前，两极核移向卵细胞的合点端；两精子释放于卵细胞与中央细胞的间隙后，先后脱去细胞质，然后分别移向卵核和极核，移向卵核的精核快于移向极核的精核；精核与两极核在向反足细胞团方向移动的过程中完成雌雄核融合。

Two polar nuclei move to the micropylar end before sperm is released in a gap between the egg cell and central cell and subsequently taking off cytoplasm one after another. The sperm nucleus moving to the egg nucleus runs faster than the one to the polar nuclei. It fuses with the polar nuclei that are moving towards the antipodal cells at the chalazal end, Images showed the fusion process of male and female nuclei and polyspermous fertilization.

精子释放前，两极核移向卵细胞的合点端；两精子释放于卵细胞与中央细胞的间隙后，先后脱去细胞质，然后分别移向卵核和极核，移向卵核的精核快于移向极核的精核；精核与两极核在向反足细胞团方向移动的过程中完成雌雄核融合。

Polar distribution of Con A receptors was observed on the plasma membrane of unfertilized egg cells and central cells.

在蚕豆和莺尾的生殖细胞表面均有这三种凝集素的受体。在朱顶红生殖细胞表面有前两种凝集素的受体，分布比较均一，但是没有大豆凝集素的受体。

As the first attempt, it was designed to reveal the general pattern of lectin receptor distribution on the surface of female cells, namely egg cells, central cells and synergids of Torenia fournieri and, especially, toensure the possible effects of cell isolation procedure on the distribution of lectin receptors by four different systems.

在烟草活体的中央细胞及卵细胞表面发现了伴刀豆凝集素受体的极性分布或者称之为&镶嵌性分布&。在大部分的中央细胞膜表面，该凝集素受体主要分布在靠近核的部位，而在相对侧的荧光要弱或缺失。

So instead, researchers led by Hananel Holzer remoed unmatured egg cells from the woman's oaries and used hormones to coax them to maturity in the laboratory.

所以，由Hananel Holzer领衔的研究者们从这名女性的卵巢内取走未成熟的卵细胞，并在实验室中利用激素来促进它们的成熟。

Some handles may turn off genes in sperm and egg cells . The genes then remain shut off after a sperm fertilizes an egg .

一些处理可能关闭精子和卵子的基因，这些基因在精子使卵子受精后一直处于关闭状态。

With the disappearing of vacuoles,many protein vacuoles appeared from the bottom and periphery of egg cells.

伴随着蛋白泡的变化，胚内的糖类物质和蛋白质也呈现出有规律的时空变化。

The government says twenty percent of male black bass in river basins across the country have immature egg cells in their sexual organs.

政府说，20的男性在河流流域布莱克巴斯百分之全国在他们的性器官未成熟卵子细胞。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷