受精作用

Apomixis is a means of asexual reproduction by which plants produce embryos without meiosis and fertilization; thus the embryos is of clonal, maternal origin.

无融合生殖是指不经减数分裂和受精作用而产生胚的一种无性繁殖，因此是胚的克隆，母系繁殖。

The research results showed that there were no big difference in time of beginning fertilization between autotetraploid and diploid rice.

研究结果表明，同源四倍体水稻和二倍体水稻在发生受精作用的时间上没有存在着很大的差异。

The research results showed that there were no big difference in the time of beginning fertilization between autotetraploid and diploid rice.

研究结果表明，同源四倍体水稻和二倍体水稻在发生受精作用的时间上不存在很大的差异。

Cytogamy The fusion of gametes during fertilization.

细胞融合：通过受精作用达到的配子体的融合。

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。

As the male gametophyte, pollen delivers sperm to the embryo sac for fertilization by pollen-tube polarized growth.

花粉作为种子植物的雄配子体，通过萌发后极性生长的花粉管将精细胞送到胚囊完成受精作用。

The development of embryo sac is of the Polygonum type.

珠孔受精，受精作用属于有丝分裂前类型。

Fertilization occurs at oviduct and development of the fertilized egg at uterus.

受精作用在输卵管内发生而受精卵则在子宫内发育。

At fertilization one male nucleus fuses with the gee nucleus to form the zygote, while the second male nucleus fuses with the primary endosperm nucleus to form a triploid cell, or more rarely a second diploid or a pentaploid cell that later gives rise to the ENDOSPERM.

受精作用发生时，一个精核与卵核融合形成受精卵，第二个精核与最初胚乳核融合，形成三倍体细胞，偶而也形成第二个二倍体或五倍体细胞，三倍体细胞最后发育为胚乳。

In order to trace the male cytoplasm transmission during double fertilization process, the mature gametophyte, zygote, proembryo and primary endosperm in Pelargonium hortorum Bailey and Rhododendron mucronulatum Turcz were investigated using transmission electron microscope and DNA staining technique.

本研究应用透射电镜及DNA荧光技术对天竺葵和杜鹃的成熟配子体以及在受精以后雄性细胞器的存在和分布进行了系统的细胞学研究，阐明了这两种植物中雌性生殖单位的超微结构特点及雄性和雌性细胞中质体和线粒体在受精作用中的传递。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。