查询词典 embryo

We also successfully amplified Sry from pronucleus stage embryos, which prove that embryo can be sexed by Sry PCR method using one cell instead of the minimal detectable cell amount of 4 cells proved by others.

同时由于从原核时期扩增到了Sry，本文认为胚胎的性别鉴定取单个细胞即可。

Since 1995, more than 100 virus isolates were obtained from proventriculus of the chickens infected with TP. 13 isolates were identified by EM observation and chicken embryo propagation as IBV.

1995年以来，先后从临床上表现TP的病鸡腺胃组织内分离到100多株病毒，选择其中的13株进行了电镜观察和鸡胚传代，初步鉴定为IBV。

Research of this area was focused on the relation of sedimentary basin stratigraphy and fossil egg succession in the sediments. Studies on pterosaur embryo contained in fossil egg; the first attempt to get DNA from fossil eggs by using molecular biology method are examples of this progress.

这期间的研究更注重于解决盆地地层与蛋化石演化序列间的联系；开展了翼龙化石胚胎学研究；通过分子古生物学分析，尝试了获取古代DNA的方法；河南西峡恐龙蛋化石博物馆的建立，成为展示这一阶段进展的突出标志。

Methods Following the working experience,we anslyse its reason about puerpera,embryo and midwife.

根据笔者的工作经历，从产妇、胎儿、助产者等几方面来分析会阴撕裂的原因。

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。

Caryopsis with large embryo and punctiform hilum.

有大的胎儿和点状的种脐的Caryopsis。

The metabolites produced by NJ-08 strain made the leaves of Eleusine indica yellow and wilting, and showed good herbicidal activity against the indicator plant and weeds such as Stylosanthes guianensis, Urena lobata, Crotalaria mucronata and Capsicum frutescens with the inhibition rate to radicel and embryo of above 90%.

NJ-08菌株产生的代谢产物作用于牛筋草，可使叶片黄化或枯死，代谢产物对指示植物及杂草如柱花草、地桃花、猪屎豆和辣椒的胚根胚芽生长都有明显的抑制作用，抑制率均超过了90%，显示出很好的除草活性。

A quick DNA extraction technique which was fitting for maize variety identification and establishing DNA fingerprinting pool was explored ,and the technique was well applied in the following tissues for DNA extraction : embryo, endosperm; radicel, coleoptile , hypocotyl from germinated 1～3 days material .

本实验探索了适用于玉米品种鉴定及DNA指纹库构建的玉米品种DNA快速煮沸法，用快速煮沸法提取了玉米种子胚、胚乳；水培初生根、侧根；种子出苗后的初生根、侧根、胚芽鞘、胚轴、叶片等组织DNA，结果表明，种子胚、胚乳组织；水培2～4d水培初生根、侧根组织；出苗1～5d的胚芽鞘、胚轴组织用快速煮沸法提取DNA效果较好。

Seeds 3 or 4, not comose; embryo large, radicle short.

种子3或4，不具丛毛；大的胚，胚根短。

Seeds with straight embryo, with or without endosperm; radicle curved upward or downward.

种子具直立的胚，有或没有胚乳；胚根向上或者向下弯曲。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。