lentogenic strain meaning in Chinese
轻型或无毒簿株
Examples
- All the result showed that ndv f48e9 strain has its own speciality compared with other five ndv strains , and there were many difference between velogenic strains and lentogenic strains . so the infectious cdna of rnesogenic strains and lentogenic strain was far from enough to understand the replication , pathogenicity of ndv and the interaction between ndv and host cells , and the infectious cdna of velogenic strains ( eg . . f48e9 ) was required to explain the relationships between structure and function
本研究成功地获得了ndvf48e9 t因组的核昔酸序列，并构建了表达ndvf48e9基因组cdna的低拷贝表达载体休f48e9 ，为构建新城疫病毒强毒株f48e9株的感染性cdna奠定了物质基础，进一步研究ndv的生物学特性、结构与功能的关系；进一步探讨影响ndv毒力的因素、以及研制新型疫苗载体提供了可靠保证。 - Newcastle disease is a highly contagious and economically most important disease of poultry . the disease also inflicts many other avian species . the disease varies in degree of severity ranging from mild , inapparent infecion to severe disease . based on the severity of the disease in chickens , the causative agent of the disease , newcastle disease virus ( ndv ) , is divided into three pathotypes : ( 1 ) the lentogenic strains , which cause mild inapparent infection ; ( 2 ) the mesogenic strains , which cause mild respiratory symptoms with low mortality ; ( 3 ) the velogenic strain , which are highly virulent and cause high mortality
新城疫( newcastledisease ， nd )是由新城疫病毒( newcastlediseasevirus ， ndv )引起的侵害禽类的急性高度接触性传染病，是家禽传染性疾病中危害最严害的疫病之一，由于对世界养禽业危害极大，故被国际兽疫局确定为类传染病。在传染性疾病的预防中，疫苗是减少易感人群而被最广泛采用和最有效的途径。 - It was interested that there was an extra six nucleosides insertion between 1647 - 1652nt ( according to the genomic sequence of la sota strain ) , and the sequence were cccccc in f48e9 strain , and tcccac in zj1 strain . in order to test if insertion of this six nucleosides is related with the virulence of nd , two primers were designed to amplify the same fragment of another ten ndv strains . the result of sequence comparison of 16 strains showed that the six nucleoside was absent in lentogenic strain . this suggested that the six nucleosides insertion might have relationship with the ndv virulence . compared with all known sequence of ndv . there was a special sequence ( 5 ' tctctctcctctctcctcc3 " ) in the genomic cdna of ndv f48e9 strain
通过rt - pcr方法扩增获得了另外10个背景清楚毒株的np - p基因间隔区片段，将这些序列与f48e9 、 lasota 、 clone30 、 b1 、 zj1和v4的相应序列进行了比较，结果在参比的16个ndv毒株中在该区段中除了有多个点突变外，个别毒株有碱基插入和缺失，所有以lasota株为代表的弱毒株均无6碱基的插入，而以f48e9株为首的强毒株均有此6碱基的插入，但有一个中等毒力的毒株dp没有6碱基的插入，不过它的基因序列和lasota的几乎相同，对于所克隆到的基因的代表性还有待确定。