Henry R A, Johnson R C
Appl Environ Microbiol. 1978 Mar;35(3):492-9. doi: 10.1128/aem.35.3.492-499.1978.
The distribution of the aerobic spirochetes Leptospira in surface waters, soil, and aquatic animals was investigated. Isolates from water and soil exhibited physiological characteristics common to members of the "biflexa complex," none were capable of infecting experimental animals, and leptospires could not be isolated from the eight genera of aquatic animals examined. The isolation frequencies from surface waters were: stream, 100%; lake, 65%; spring, 28%; bog lake, 5%; and marsh, 0%. With the exception of the stream, more isolations were obtained from the soil adjacent to the water than from the water. Leptospires were most frequently associated with soils of high moisture and organic matter content.
对需氧螺旋体钩端螺旋体在地表水、土壤和水生动物中的分布进行了调查。从水和土壤中分离出的菌株表现出“双曲钩端螺旋体复合群”成员共有的生理特征,没有一个能够感染实验动物,并且在所检查的八个水生动物属中均未分离到钩端螺旋体。从地表水的分离频率为:溪流,100%;湖泊,65%;泉水,28%;沼泽湖,5%;沼泽,0%。除溪流外,从水体附近土壤中获得的分离物比从水体中更多。钩端螺旋体最常与高湿度和高有机质含量的土壤相关联。