胚

Objective To appraise the value on combined detection of telomerase activity,DNA aneuploid and carcinoembryonic antigen for the laboratory diagnosis of malignant pleural effusion.

目的评价联合检测胸腔积液中端粒酶活性、DNA异倍体和癌胚抗原对实验诊断恶性胸腔积液的价值。

What recorded them were embryos of angiosperm and gymnosperm.

记忆它们的是被子植物和裸子植物等胚种。

Most angiosperm ovules possess two integuments, while gymnosperms usually have only one.

大多数被子植物的胚珠有两层珠被，而裸子植物通常只有一层。

Seeds minute, cylindric-ellipsoid to angular; seed coat thin reticulate to verrucose or almost very minutely papillate; endosperm fleshy.

种子小，对具角的圆筒状椭圆形；几乎的对瘤状的或薄网状的种皮微小乳突；胚乳肉质

The transcripts of XSox1 are detected in the animal pole at cleavage and blastrula stages and mainly in the central nervous system and the developing eye at neurula stages.

原位杂交结果显示，在早期卵裂阶段和囊胚期，Sox1基因主要在动物极表达；从神经板期开始，Sox1基因主要在中枢神经系统和眼原基中表达。

Furthormore, xNorrin can not activate canonical Wnt signaling in the endomesoderm, suggesting additional mechanisms to restrict xNorrin activity in the ectoderm besides of its RNA localization in the animal pole..

进一步的体内实验表明，xNorrin协同xFrizzled4及xLrp5/6只能在外胚层激活经典Wnt信号通路，而在内中胚层中这种活性则很低，提示除了其RNA定位在动物极细胞之外，还存在着另外一种分子机制将xNorrin的活性限制在背部外胚层。

In peas there is an initial deposition of materials in the endosperm following anthesis .

豌豆中紧随开花期之后胚乳开始有物质积累。

The microspore was more like a tetrahedron, whilethe polar was more like a triangle. The number of microspore in every anther wasbetween 2600～3600, so the amount of pollen was quite large that it was propitiousto spread and pollination. P/O was 8088 and the breed system was singleheterosexual copulatoryb. The viability of pollen was normally above 50%. The testof pollen culture showed that the viability of pollen was up to the tiptop under thehigher temperature and lower humidity (38℃,40%),while it was weakest under thelower temperature and lower humidity (16℃,40%).The OCI is 4, and the breedsystem was belong to autocopulation. If it was heterosexual copulatory, there must beintermediums for pollination. It was recorded there were more than 40 species ofinsects on the anthotaxy or followers of Malania Oleifera. Under different weather,different living environments and different plants the frequency and rush hour of theinsects to visit the followers were different. Actions of different kinds of insect werealso different. According to the results of the observation, the form of fluid and seedof Malania Oleifera mostly rely on the action of insect pollination, especially thebees.

蒜头果的花序为聚伞形花序，有小花8～10朵，小花较小；按花粉大小等级划分，蒜头果的花粉粒属于小的范围；花粉粒呈近四面体，极面为近三角形：每粒花药所含的花粉粒在2600～3600粒之间，花粉量较大，有利于花粉的传播和授粉；胚珠比值为8088，繁育系统为专性异交类型；花粉生活力一般在50％以上；在不同温度湿度条件下测得蒜头果花粉的生活力在高温低湿(38℃，40％)的条件下最高，在低温低湿(16℃，40％)的条件下最低；杂交指数值为4，繁育系统自交亲和，异交，需要传粉者；记录到的访花昆虫有40余种，访花昆虫的访花频率及高峰时间不同，不同种类的昆虫的访花行为也是各有所异；从观察的结果看，蒜头果的种实的形成大多数依赖于传粉昆虫的活动，其中主要是蜂类。

In this study, a feedback insensitive anthranilate synthase gene ( ASA2 ) cloned from a tobacco cell line was tested for Agrobacterium mediated transformation of axis tissue of soybean mature embryo, with a tryptophan analogue 5 methyltryptophan (5 MT) as the selective agent.

通过从烟草中克隆的邻氨基苯甲酸合成酶基因(ASA2 )作为筛选标记基因，并采用氨基酸的类似物 5 甲基色氨酸为筛选剂，进行了农杆菌介导的大豆成熟胚尖转化研究。

And compared with the serum level of carcinoembryonic antigen.

并与血清癌胚抗原水平进行比较。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。