Koskinen R, Ali-Vehmas T, Kämpfer P, Laurikkala M, Tsitko I, Kostyal E, Atroshi F, Salkinoja-Salonen M
Faculty of Veterinary Medicine, Department of Clinical Veterinary Sciences, University of Helsinki, Finland.
J Appl Microbiol. 2000 Oct;89(4):687-96. doi: 10.1046/j.1365-2672.2000.01167.x.
Sphingomonas species were commonly isolated from biofilms in drinking water distribution systems in Finland (three water meters) and Sweden (five water taps in different buildings). The Sphingomonas isolates (n = 38) were characterized by chemotaxonomic, physiological and phylogenetic methods. Fifteen isolates were designated to species Sphingomonas aromaticivorans, seven isolates to S. subterranea, two isolates to S. xenophaga and one isolate to S. stygia. Thirteen isolates represented one or more new species of Sphingomonas. Thirty-three isolates out of 38 grew at 5 degrees C on trypticase soy broth agar (TSBA) and may therefore proliferate in the Nordic drinking water pipeline where the temperature typically ranges from 2 to 12 degrees C. Thirty-three isolates out of 38 grew at 37 degrees C on TSBA and 15 isolates also grew on blood agar at 37 degrees C. Considering the potentially pathogenic features of sphingomonas, their presence in drinking water distribution systems may not be desirable.
鞘氨醇单胞菌属常见于芬兰饮用水分配系统的生物膜中（三个水表）以及瑞典（不同建筑物中的五个水龙头）。通过化学分类学、生理学和系统发育学方法对鞘氨醇单胞菌分离株（n = 38）进行了鉴定。15株分离株被鉴定为芳香鞘氨醇单胞菌，7株为地下鞘氨醇单胞菌，2株为嗜异鞘氨醇单胞菌，1株为冥河鞘氨醇单胞菌。13株分离株代表鞘氨醇单胞菌的一个或多个新物种。38株分离株中有33株在胰蛋白胨大豆肉汤琼脂（TSBA）上于5℃生长，因此可能在北欧饮用水管道中增殖，那里的温度通常在2至12℃之间。38株分离株中有33株在TSBA上于37℃生长，15株分离株在血琼脂上于37℃也能生长。鉴于鞘氨醇单胞菌的潜在致病特性，它们在饮用水分配系统中的存在可能并不理想。
