胚细胞

The authors make a study on the effects of auxins and cytokinins on the process of somatic embryo genesis and embryoid growth of Oxalis train gularis Subsg. Trian.

本文通过组织培养方法，探讨生长素和细胞分裂素在紫叶酢浆草体细胞胚诱导和发育过程中的作用。

A virus strain was isolated from the arthrosis of broiler chickens.The virus was shown to have spherical particles with isometric symmetry,no envelope,double deck capsids,with outer capsid of 75nm,inner one of 50nm in diameter by electron microscopy.The virus was not sensitive to aether,acid and heat.The virus could multiply on the chick embryo fibroblastcell,and could cause syncytial pathologic change with the appearance of cytoplasm inclusion bodies.The challenged chickens of one-day old by nasal,oral,intramuscular and pulvillus injection displayed obvious clinical symptom of severe arthritis and accompanied with pathological changes of malabsorption and necrosis.Meanwhile,four avian reovirus isolates CL,S1133,YH and YB were examined in the cross-neutralization test.

从临床患病鸡关节病料中分离到一株病毒，在电镜下观察到病毒粒子无囊膜，有双层衣壳，外衣壳直径约75nm，内核约50nm；分离病毒株对酸、热有较强的抵抗力，对乙醚不敏感；病毒感染鸡胚成纤维细胞上能产生以融合细胞为特征的CPE；爪垫接种1日龄雏鸡表现出明显的病毒性关节炎临床症状，并伴有吸收障碍型和坏死型的病理变化；血清中和交叉试验表明，该病毒分离株与国内的2株番鸭源呼肠孤病毒分离株和国外S1133呈不同程度的交叉反应。

The perisperm cells are elongated rectangularity , squareshaped or polygon full of starch grains.

外胚乳细胞长条形、方形或多边形，细胞内充满淀粉

The expression of RG could be detected in CEF by indirect immunofluorescence assay and Western blot analysis.

该病毒在鸡胚成纤维细胞中繁殖，在人源细胞如TK143中几乎不增殖。

Histochemical analysis showed that the specific expression of GUS in seeds was not restricted to the endosperm cells, but also occurred in the vascular bundle and epithelial cells of scutellum.

组织化学分析发现在水稻种子专一性表现的GUS活性并不局限於胚乳细胞，维管束组织及子叶盘的上皮细胞也有明显的表现。

Endoscopic Describing the type of development of a plant embryo in which the inner cell formed by the first division of the zygote develops into the embryo, while the outer cell develops into the suspensor.

内向极性：该名词用来描述植物胚胎发育的一种形式，指受精卵第一次分裂形成的内细胞最后发育为胚胎，外细胞发育为胚柄。

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。

During male and female reproduction organ developments, CBKs were expressed obviously in temporal and spatial difference manners, especially in pollen development, tapetum cell development and degeneration and ovule development.

这种差异性突出体现在花粉细胞的发育、绒毡层细胞的发育和凋亡以及胚珠的发育等过程中。

The medium-Nitsch basic medium with 1umol/L 2, 4-D was suitable for the growth of somatic cells. The trimness degree of somatic embryogenesis was more improved after the treatments of cells to be sifted with 1mm diameter screen in 4 days of subculture.

胚性细胞团悬浮培养最适培养基为ND培养基，在继代后4天将细胞团经孔径1mm的钢质筛网多次过滤处理，可以使体细胞胚胎发生的整齐度大大增强。

College of Animal Sciences, Zhejiang University, Hangzhou 310029, ChinaAbstract: In vitro chicken embryo hepatocytes were adopted to evaluate the antioxidizing effects of vitamin E and quercetin on polychlorinated biphenyls-induced toxicity.

利用体外培养的鸡胚肝细胞研究抗氧化剂维生素E和槲皮素对多氯联苯（polychlorinated biphenyls， PCB）引起的肝细胞损伤的缓解作用。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。