查询词典 chalazal

There are commonly eight nuclei in the embryo sac: the egg apparatus at the micropylar end, made up of an gee nucleus and two synergid nuclei; three antipodal cells at the oppsite chalazal end that probably aid embryo nourishment; and two polar nuclei in the center that fuse to form the primary endosperm nucleus.

通常胚囊中有8个核，卵器在珠孔端，由卵和两个助细胞组成；3个反足细胞在合点端，可能为胚胎提供营养；胚囊中央有2个极核，融合在一起形成最初的胚乳核。

The results showed that protuberance of fiber cells from TM-1 ovule was first appeared at the funiculus crest, then spread from the chalazal cap to the micropylar, this situation was also observed in mutants with fiber or fuzz, such as Naked seed (N1) and Ligon lintless.

结果表明棉花纤维突变体胚珠纤维分化突起与对照TM-1同样首先发生在胚珠脊突处，然后是合点处及胚珠中部，最后在珠孔端。

The megaspore tetrad is linear. The chalazal megaspore develops into an embryo sac of the polygonum type.

大孢子四分体线形排列，合点端大孢子为功能大孢子，胚囊发育为蓼型。

Ovule development began in August, and rectangle megasporocyte began to occur in December, and linear tetrads of megaspores were formed in meiosis. In most occasions, only the chalazal megaspore was functional.

云南红豆杉胚珠从8月开始发生，大孢子母细胞12月开始发生，呈方形，减数分裂后形成4个"一"字形大孢子，在大多数情况下，只有靠合点端的大孢子发育为功能大孢子。

The megaspore mother cell is located at the 3rd or 4th layer of cells in the nucellus top end. It divides transversally to form a linear megaspore tetrad, and the megaspore at the chalazal end develops into the embryo sac mother cell.

大孢子母细胞位在珠心顶表皮下第三或四层细胞处，经横分裂后产生一直线形的大孢子四分体，其中位居合点端的大孢子发育成胚囊母细胞。

At ld before anthesis, a biggest vacuole located at the micropyle end of the cell and its nucleus was pushed toward the chalazal end of the cell, which made an evident cellular polarity.

受精后合子中的钙颗粒又明显增多，在核质中分布一些较大的钙颗粒，在珠孔端大液泡中聚集了较多的絮状钙。

Deserticola showed polarity, with the micropyle cells being smaller than the chalazal ends and differentiated into white radicle-like organs.

肉苁蓉种胚具有明显的极性，珠孔端细胞小于合点端，珠孔端细胞分化、生长并产生白色的类胚根状结构。

Phosphorylase mRNA was expressed substantially in stigma, style, ovarywall and vascular bundle, but weakly in ovular tissues except the chalazal portion.

磷酸化酶mRNA在水稻柱头、花柱、子房壁以及维管束中大量表达，而胚珠中除合点部位外表达很弱。

Phosphorylase mRNA was substantially expressed in the stigma, style, ovary wall and vascular bundle, but weakly in ovular tissues except chalazal portion.

结果显示，磷酸化酶mRNA在柱头、花柱、子房壁以及维管束中大量表达，而胚珠中除合点部位外表达很弱。

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。

The receding calculations and experiment analyses in this subject are built on the blood cast of pig tongue.

本研究课题的前期工作是采用猪舌血管铸型模拟人舌而进行的数值计算与实验分析。

"Each human infection constitutes an opportunity for genetic modification of the virus through reassortment, mutation, or both...."

&每一次人类的感染都暗藏着一次基因修改的机会，无论是通过病毒的整合、突变或者兼而有之。。。。&