查询词典 embryo

Therefore, a experimentent with three exposure types (early cleavage exposure, 0hpf; gastrula exposure, 8hpf and 0hpf exposure but stop after 8 hours, 8h stop) were designed to investigate the toxicity and bioaccumulation of bisphenol A in zebrafish embryo in different stages.

为研究胚胎在不同发育阶段对外源化合物的毒性敏感差异，以0hpf、8hpf和8h终止3种暴露方式进行染毒，探讨斑马鱼胚胎在不同暴露时段对双酚A。

RT-PCR results showed that GDF8/11 gene was expressed in new fertilized cell, early gastrulation and knife-shaped embryo, which was different from that in mammals.

RT-PCR结果表明GDF8/11基因在新受精的细胞、早原肠胚和刀形胚胎中表达，这与哺乳动物中的情况不同。

A mathematical model has now been used to identify factors regulating Notch during chick embryo gastrulation.

象为什么大象大而狗小，为什么有些动物能在水中进行肺呼吸而不缺氧。。。，这一系列看似简单的平常问题，都包含有许多科学道理。

Beyond that, there is an even bigger problem: the most suitable species to act as a host for a developing glyptodon embryo would be the far smaller 30-kilogram "giant" armadillo.

除此以外，科学家还面临一个更加棘手的问题：最适合担任雕齿兽胚胎的代孕妈妈的，可能是体重远远低于30公斤的&庞大的&犰狳。

Methods The current conservative sequence primer and probe were designed according to the gene sequence of moderate and strong NDV in GeneBank. Fuorescence ration RT-PCR was done to the special TaqMan probe of moderate and strong NDV .The proliferation of NDV in chicken embryo was evaluated after taking Shuanghuang Shadu Tuishao Gule comparing with the control group.

根据GenBank登录的NDV中、强毒力株F基因序列，选择包含裂解位点的保守序列设计通用引物和针对中、强毒力NDV的特异性TaqMan探针进行实时荧光定量RT-PCR，评价双黄杀毒退烧颗粒干预后NDV强毒在鸡胚中和在机体内病毒的增殖情况，并与未干预的对照进行了比较。

The research illustrated that,empty-shell chestnut occured chiefly on thephases of gynospore formationand young embryo development.

研究认为，板栗空苞主要发生在6月中旬大孢子形成时期和7月上旬幼胚发育时期。

The cause of hindering the gynospore formation was short of boronin chestnut orchard,which led to the poor pollination and a decrease ofendogenous GA1/3, iPAs level and an increase of endogenous ABA level in ovary,which restrained the mother cell division of gynospore.The low level ofendogenous GA1/3,iPAs contents and the increase of endogenous ABA contentcaused a serious lack of reducing sugar,starch,protein and potassium in ovary,which led to a cease of young embryo development.

其中，大孢子形成过程的停滞是由于栗园B素缺乏，致使授粉不良和子房内源GA1/3、iPAS等含量下降，ABA含量上升，从而抑制大孢子母细胞分裂；幼胚发育停滞则是由于子房内源GA1/3、iPAS等生长类激素的上升启动受阻，继续处于低水平，ABA上升，使子房中还原糖、淀粉、蛋白质和K素积累受阻，造成营养严重缺乏。

Four field strains of infectious bronchitis viruswere isolated from chicken kidney, trachea and lung of the young layer flocks in some regions of Shaanxi province. Biological characterizations of the virus were investigated by virus pathogenicity to chicken embryo and healthy chickens, hemagglutination test, hemagglutination inhibition test, dwarfing embryonated chicken eggs, electron microscopy and reverse transcription polymerase chain reaction. It demonstrated that allantoic fluid of each passage virus could hemagglutinate chicken red blood cells by treatment with 1% trypsin. The standard positive serum to IBV could inhibited the hemagglutination. The isolates could make respiratory and kidney diseases in chickens.

采集陕西省宝鸡市、扶风县、兴平市和榆林市等地鸡场疑似传染性支气管炎发病鸡病料，通过9～11 日龄非免疫鸡胚进行了病毒的实验室分离和传代，并对分离毒株进行了病毒的血凝性、血凝抑制性、致病性、鸡胚矮小化、电镜特征等生物学特性鉴定，结果表明，4 株分离株经1%胰酶处理后的各代病毒尿囊液均可凝集鸡红细胞，标准阳性血清可特异性的抑制其凝集性，回归试验可复制出与自然发病相同的病例，病毒传代物有明显的致鸡胚矮小化作用，透射电镜下可见有近似球形、直径100 nm左右的冠状病毒粒子，将分离鉴定的4 株IBV 定名为BJ-04、FF-04、XP-03 和YL-04。

Thus gp130 is the common signal transduction molecule. Gp130 molecule expresses universally on many tissues including immune system, hemapoietic system, and nerve system. Gp130 has an essential role in the function and regulation of the above systems, especially in the development of hemapoietic system. The signal transduced by gp130 is necessary during the differentiation and proliferation of hemapoietic cells. It is evidenced that the embryo of gp130 gene-knockout mouse was dead due to a serious impediment of the development of hemapoietic system.

Gp130在人体组织细胞上广泛性表达，介导和调节机体的免疫、造血以及神经系统的生理功能，尤其是在造血系统的发育过程中，具有极其重要的作用，动物实验表明，敲除小鼠的gp130分子基因可以使其在胚胎的早期阶段产生严重的造血系统障碍，最终导致流产，由此表明在造血细胞的分化、发育和生物学行为中，gp130介导的信号是必不可少的。

The present invention also discloses the method of applying the polypeptide in treating various diseases, such as substance and energy metabolism disturbance, embryo development disturbance, growth disturbance, some tumors, some genetic diseases, hemopathy and immunological diseases.

本发明还公开了此多肽用于治疗多种疾病的方法，如物质与能量代谢障碍、胚胎发育障碍、生长发育障碍、某些各种肿瘤，某些遗传性，血液性疾病及免疫系统疾病等。

Recall that, in the Kolmogorov axiomatization, measurable sets are the sets which have a probability or, in other words, the sets corresponding to yes/no questions that have a probabilistic answer.

延期开工的Kolmogorov宣布要衡量所有套职能有限许多坐标限制在于衡量子寅。换句话说，如果是/否的问题回答f可看的价值观念在许多最有限坐标，然后它有一个概率的答案。

The experimental results showed that the algorithm can filter singular points and remain fixity of the target edge.

实验表明：基于模糊理论的图像智能滤波方法比常规图像滤波方法运算量小，它既能去除奇异点，又能保持图像中目标的边缘不变性，具有很好的滤波效果。