摘要
应用ＰＣＲ技术研究地里纤恙螨（Ｌｅｐｔｏｔｒｏｍｂｉｄｉｕｍｄｅｌｉｅｎｓｅ）实验感染恙虫病立克次体（Ｒｉｃｋｅｔｔｓｉａｔｓｕｔｓｕｇａｍｕｓｈｉ）后恙螨体内立克次体ＤＮＡ的动态变化。结果如下：立克次体在接种组成虫体内持续３６０天和经卵传递达４代；叮咬组饱食蚴体内立克次体经若蛹、若虫、成蛹达成虫期，成虫体内立克次体持续２７０天和经卵传递达２代，表明叮咬带立克次体鼠和经卵传递是保持恙螨亲代和子代体内立克次体动态循环的基础。
This paper reports the dynamic state of Rickettsia tsutsugamushi in Leptotrombidium deliense. The results indicated that R. tsutsugamushi could maintain in L. deliense at least 360 days and it could transmit transovarially to the offsprings for 4 generations in inoculating group; in biting group the rickettsiae could keep 270 days in trombiculds after biting the rickettsiae carrier mouse and could transmit transovarially to the offspring for 2 generations.Rickettsiae could disappeared in L. deliense after a period of time. It was necessary for chigger mites to bite the rickettsiae host again and again to keep the cycle of R. tsutsugamushi in trombiculids.
出处
《中国人兽共患病杂志》
CSCD
北大核心
1995年第3期6-9,共4页
Chinese Journal of Zoonoses
基金
国家自然科学基金
关键词
地里纤恙螨
恙虫病立克次体
经卵传递
Leptotrombidium deliense,Rickettsia tsutsugamushi, Transovarial transmission
