卵器

They may represent what remains of the archegonium in angiosperms and the pollen tube may penetrate a synergid first, but they do not participate in the fertilization process and abort soon afterwards.

它们扮演了残留的被子植物藏卵器的角色。花粉管可首先穿透其中一个助细胞，但助细胞并不参与到受精过程中去，而且随后会消亡。

One of two sperm get into an archegonium and fused with egg. The nucleus of fertilized egg began to divide, and the walls were formed after the third division. The eggs without fertilization divided two times and then disappeared.

雄配子体产生的两个精子中的一个进入颈卵器与卵细胞结合形成受精卵，受精卵核到第3次分裂形成细胞壁，没有受精的卵细胞还要进行两次有丝分裂后才消失。

Simultaneously the four cells of the tier below the embryo, the suspensor cells, elongate greatly and force the four developing embtyos through the wall of the archegonium and into the female gametophyte.

同时地列的这四个细胞在胚胎，suspensor 细胞，下面延长很大而且强迫穿过造卵器的墙壁四发展中的 embtyos 和进入女性的配偶体之内。

The two neck cells of the archegonium divided to fo rm four neck cells before fertilization, this division happened prior to the div ision of the central cell, but at times they divided synchronously.

颈卵器的2个颈细胞在受精前进行一次斜向分裂形成4个颈细胞，此分裂一般早于中央细胞的分裂，偶尔也可见颈细胞和中央细胞同时分裂。

By the nucellar cells PCD, which were encircling the female gametophyte, the pollen chamber connected with the archegonium chamber for the fertilization in coming.

在胚珠中的雌配子体发育完成、受精过程开始之前，贮粉室与颈卵器室贯通。这一过程是通过雌配子体周围的珠心细胞发生程序性死亡完成的。

Archegonium The female sex organ of the mosses, ferns, clubmosses, horsetails, most gymnosperms, and some red and brown algae.

颈卵器：一些苔藓，蕨类，红藻，褐藻和裸子植物中的雌性生殖器官。

Objective To evaluate the attractant efficiency of Mosq-ovitrap combined with attractants to mosquito in the laboratory and field.

目的 了解多种诱引剂对诱蚊诱卵器使用效果的影响。

The presence of the calyptra is necessary for the proper development of the capsule in mosses and the embryo in ferns.

蒴帽：覆盖在苔藓植物孢子体顶部的膜状物，为颈卵器的颈部和部分腹部的残余部分，葫芦藓，大金发藓的蒴帽，覆盖在孢蒴上，颇为显著。

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。

Observing the mature embryo sac of the mutant: It was found thatthe embyo sac appeared in typical polygonum type and more than 90% of the embryo sac hadintegral inner structure. They had egg apparatus, two polar nucleus and three antipodal cells , and their position in the embryonic sac was normal .

幼穗分化、成熟胚囊观察发现，90％以上的胚囊具有完整的内部结构，有卵器、两个极核及多个反足细胞，且位置正常，胚囊呈现典型的蓼型结构；同时还观察到雌、雄器官的发育是同步的。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。