英语人>网络例句>archegonium 相关的网络例句
archegonium相关的网络例句

查询词典 archegonium

与 archegonium 相关的网络例句 [注:此内容来源于网络,仅供参考]

During early embryogeny, four tiers of cells are produced near the lower end of the archegonium.

在早的胚形成期间,细胞的四列在造卵器的下端的附近被生产。

Botany of or relating to an archegonium.

属于或与植物藏卵器有关。

In this species, the first division of zygote produces two equal hemispheric cells by the first partition wall at the right angles to the axis of the archegonium.

合子的第一次分裂面垂直于颈卵器的长轴,产生两个相等的子细胞,靠近颈卵器颈部的营养器官原始细胞和远离颈部的基足原始细胞。

A minute rudimentary plant contained within a seed or an archegonium.

包含在种子或藏卵器中的一种微小的未生长的植物。

A layer of cells derived from the venter of the archegonium that covers the developing sporophyte.

帽状体:1。根冠:位于根尖的最前端,像帽子一样套在分生区外面,保护其内幼嫩的分生组织细胞。

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。

Venter The swollen base of an archegonium that contains the egg cell.

颈卵器腹部:颈卵器内含有卵细胞而向外膨大的基部。

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。

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