Tuovinen O H, Hsu J C
Appl Environ Microbiol. 1982 Sep;44(3):761-4. doi: 10.1128/aem.44.3.761-764.1982.
Aerobic and anaerobic microorganisms were enumerated in tubercles collected from sections of the water distribution pipeline in the Columbus, Ohio, metropolitan area. Coliform bacteria were not detected in the tubercles examined. Sulfate-reducing bacteria were detected in 80% of the samples. Nitrate-reducing heterotrophs were present in all samples. The results, including plate counts of aerobic heterotrophs, indicated variation in bacterial densities depending on the tubercle sample and fraction examined. The associations among the viable counts obtained by the different culture methods were analyzed statistically, using three methods (Pearson, Spearman, and Kendall).
对从俄亥俄州哥伦布市大都市区配水管道各部分采集的结核中需氧和厌氧微生物进行了计数。在所检测的结核中未检测到大肠菌群。80%的样本中检测到了硫酸盐还原菌。所有样本中均存在硝酸盐还原异养菌。结果，包括需氧异养菌的平板计数，表明细菌密度因结核样本和所检测部分而异。使用三种方法（皮尔逊、斯皮尔曼和肯德尔）对通过不同培养方法获得的活菌计数之间的关联进行了统计分析。
