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目的通过对青海田鼠鼠疫自然疫源地的鼠疫菌进行生化试验来测定其生化性状,并与喜玛拉雅旱獭鼠疫疫源地鼠疫菌和布氏田鼠鼠疫疫源地鼠疫菌的差异进行比较研究。方法选择鼠李糖、甘油、麦芽糖、阿胶糖、蜜二糖、木胶糖、松三糖、乳糖、水杨素、山梨糖、甘露醇、七叶苷、糊精、蔗糖、半乳糖、纤维二糖、山梨醇、尿素、枸橼酸钠、和硝酸钾等项目进行生化试验。结果青海田鼠型菌株的生化性状,与其毗邻地理位置及生态环境一致,分离自喜玛拉雅旱獭的菌株有较大的差异。而与地理位置和生态环境相差甚远的布氏田鼠菌株其生化性状较接近。结论由此可见鼠疫菌的生化性状与宿主的关系更加密切。
Objective To determine the biochemical characters of Y. pestis in the natural foci of the plague of Qinghai and to compare the difference with the Y. pestis in the plague foci of Himalayan plague origin and the plague origin in the field. Methods Rhamnose, glycerol, maltose, gelatin, melibiose, xyloglucan, melezitose, lactose, saligenin, sorbose, mannitol, esculin, dextrin, sucrose, galactose, fiber Disaccharide, sorbitol, urea, sodium citrate, potassium nitrate and other projects for biochemical tests. Results The biochemical traits of Microtus fortis strains in Qinghai were similar to their adjacent geographical locations and ecological environment. The strains isolated from the Himalayan marmot were quite different. However, the biochemical traits of Brandt’s vole (Microtus brandti) which are far away from the geographical location and ecological environment are close. Conclusions This shows that the biochemical traits of Y. pestis are more closely related to the host.