查询词典 embryo sac

The thesis work is to investigate the connection of [Ca2+]cyt and fertilization by avoiding drawbacks noted above, say, employing an ideal experimental plant, Torenia fournieri , with a naked embryo sac that protrudes from the micropyle.

因此，材料本身的结构限制和研究手段的限制使得植物双受精过程中胚囊内胞质游离钙的研究相比之下显得落后。

In order to compare the homology of the gene encoding VP2 between MDPV-Q and MDPV which was registered in the GenBank, also in order to find out changes of the VP2 gene and the immuno-genicity between the wild-strain MDPV-Q and the attenuated strain MDPV-26 which derived by continued passage of virulent wild-type in muscovy duck embryo, a pair of primer (LHMP7/LHMP8) was designed. The upper one LHMP7 and the lower one LHMP8 corresponded to the MDPV-specific nucleotides sequence 2885-2900 and 4618-4604 respectively, according to the MDPV nucleotide sequence databases. The length of the sequence embraced by the primers was 1734bp.

为了获取这一基因片段与国外分离株进行同源性比较，同时也为了了解MDPV强、弱毒株VP2基因之间的异同关系，及其免疫原性的变化规律，通过DNA重组技术，设计了一对引物LHMP7／LHMP8，该对引物选取位于2885～2900及4618～4604的两段序列，跨幅为1734bp，并在这两条引物中分别加入两种限制性核酸内切酶SacⅡ和KpnⅠ的酶切位点，分别对MDPV-Q和由该株病毒经人工致弱后得到的MDPV-26株进行PCR扩增，并将PCR产物克隆到pMD18-T载体上，分别得到二个重组子：pMD18-T—M-Q VP2和pMD18-T-M-26 VP2。

A minute structure in seed plants, containing the embryo sac and surrounded by the nucellus, that develops into a seed after fertilization.

胚珠种子植物的一个小的结构，含有胚囊并被珠心所包围，施肥后长成种子

The pearl millet pollenreadily germinated on the wheat stigma and more than one pollen tubes grew into thestyle and entered the embryo sac.

波斯小麦已授粉的207个子房中，11.11％既形成胚又形成胚乳，7.25％只形成胚，而1.93％只形成胚乳，在这个杂交中受精率和成胚率分别为20.29％和18.36％。

This article used the convention paraffin section the method is the mature embryo sac and the pollen grain structure has carried on the observation to the corn inbred line.

毕业论文摘要翻译，英语高手们帮帮忙啊本文利用常规石蜡切片的方法对玉米自交系成熟胚囊和花粉粒的结构进行了观察。

Napus ; pollen germination ; embryo sac development ; genome introgression ; genetic distance

甘蓝型油菜；花粉萌发；胚囊发育；基因组导入；遗传距离

The factors affecting the seed-set rate ofintersubspecific hybrids include embryo sac sterility,pollen sterility,anther dehiscence and non-synchronization of male and female sexual organsdevelopment in the same spikelet.

对水稻亚种间杂种及其稳定的多胚品系SB-1进行了细胞学、胚胎学和遗传学研究，主要结果如下：1、影响杂种低结实率的因素包括胚囊败育、花粉败育、花药不开裂和雌雄性器官发育进程不一致。

Cytoembryological studies were employed to reveal theorigin of haploid and to determine the cytological factersrelating to the production of diploid polyembryony withinone embryo sac occurring in natural population of apolyembryonic line SB-1 of O.sativa.

SB-1自然群体中的单倍体来源于助细胞无配子生殖。细胞胚胎学研究表明，卵器中的一个或两个助细胞能在受精之前发育成胚，其发生率分别为观察子房数的2.24%和1.75%。

Synergid cells Two haploid cells located near the egg cell at the micropylar end of the embryo sac in flowering plants.

助细胞：存在于开花植物胚囊内，是位于珠孔端的卵细胞两侧的两个单倍体细胞。

In the mature embryo sac, the synergid filiform apparatus, the polari-ties of the egg and zygote and the two polar nuclei are significant.

在授粉后18-24小时，卵细胞开始受精，在授粉后54-58小时，合子开始分裂，但初生胚乳核则在授粉后32小时已开始分裂。4。

What are your goals and strategies for growth?

你的成长目标和策略是什么？

And unto the angel of the church in Sardis write; These things saith he that hath the seven irits of God, and the seven star I know thy works, that thou hast a name that thou livest, and art dead.

3：1 你要写信给撒狄教会的使者，说，那有神的七灵和七星的，说，我知道你的行为，按名你是活的，其实是死的。