查询词典 lecithinase

After treating with 1% pancreatin,lecithinase C and 10% aether,the allantoic fluid of this virus could agglutinate the erythrocytes of chicken,sheep,human being,mouse and rabbit,while the allantoic fluid of this virus without this treatment had no this agglutinative activity.

经浓度1%胰酶、卵磷脂酶C和10%乙醚处理后，该病毒尿囊液可以凝集鸡、绵羊、人、小鼠和兔的红细胞，而未处理的病毒尿囊液则无此凝集活性。

It was demonstrated that the cloned plcB gene appeared to be 834 bp in length, entirely identical with that published in GenBank The fusion protein GST-tagged broad- range phospholipase C showed bioactivity and immunogenicity in lecithinase test and Western blotting assay respectively.

结果 克隆的plcB基因长834bp，与GenBank上公布的序列完全相同；表达的与GST标签蛋白融合的广谱磷脂酶C蛋白具有磷脂酶生物活性和免疫原性。

An h-VRSA strain isolated from clinical specimen was induced to increase its resistance to vancomycin in vitro. The coagulase, lecithinase, hemolysin of this resistant strain and its pathogenicity to laboratory animals were examined in comparison with that of the standard S. aureus ATCC29213 strain.

使用万古霉素体外诱导方法将h-VRSA在体外逐渐诱导为VISA，通过对侵袭性酶、毒素的检测及动物致病性观察，并与金黄色葡萄球菌标准菌株比较，了解其致病性的变化规律。

The results showed that when the proportion of the resistant subpopulation within the h-VRSA was low, te level of the toxic factor and its pathogenicity to animals had no difference from that of the standard strain. If proportion of the resistant subpopulation increased the level of coagulase and lecithinase changing from positive from negative and the ring of hemolysis disappeared. The speed of proliferation of the organisms in the animal slowed down and the LD50 increased.

结果 当试验菌株中耐药亚群的比例较少时，其毒力因子及动物致病性检测结果与金葡菌标准菌株无显著差异；随着试验菌株中耐药亚群的比例增加，表现为血浆凝固酶、卵磷脂酶由阳性转为阴性，血琼脂平板上溶血环消失，细菌在动物体内增殖速度减慢，对动物的半数致死量(LD50)增加。

The liqase was positively controlled by HAI and AI-2 to some extent. The lecithinase was negatively controlled by HAI-1, and the hemolysin was negatively controlled by both HAI-1 and AI-2. Special primers of luxS gene were designed from the luxS gene sequence of V. harveyi obtained from the GenBank, and the gene was amplified from a pathogenic strain V. harveyi VIB645 by PCR. The luxS gene was cloned to a cloning vector pUC, and was sequenced. It was found that the open reading frame is 519 bp. The similarity of the luxS gene from V. harveyi VIB645 to the published sequence of V. harveyi strain in GenBank was only 90%.

从GenBank中获取哈维氏弧菌中编码AI-2合成酶的luxS基因序列设计一对特异性引物从哈维氏弧菌VIB645中PCR扩增luxS基因，将luxS基因克隆于pUC载体并测序，发现其与GenBank中已发表的哈维氏弧菌的luxS基因序列相似性为90%，证明LuxS/AI-2系统在哈维氏弧菌不同的菌株中的具有一定的特异性，推测LuxS/AI-2系统可能与哈维氏弧菌的致病性或发光现象有关。

In our test, the mutation in S1 gene seemed notthe major reasons responsible for IBV tropism switch. 3: Relationship between HA activity and cross-species infection of IBV After treated with lecithinase C, the strains M41, H52, H120 and Gray, but notHolte, Connecticut and M52-19, could haemagglutinate 0.5% chicken erythrocytes.

唾液酸糖蛋白在IBV跨种感染过程中的作用某些冠状病毒可以利用细胞表面的唾液酸糖蛋白作为进入细胞的受体，而神经氨酸酶可以降解细胞表面的唾液酸糖蛋白，这样就会降低病毒感染的几率。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。