低压静电场对大肠杆菌生长过程的影响
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代群威, 董发勤, 邓建军
静电场;大肠杆菌;抑制;生长修复,代群威,董发勤,邓建军,代群威,通讯作者:,Effectoflow-voltagestaticelectricfieldon
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代群威, 董发勤, 西南科技大学环境与资源学院 四川省绵阳市 621010
邓建军, 绵阳市第四人民医院检验科微生物室 四川省绵阳市 621000
代群威, 男, 1978-11-20, 河南省漯河市人, 汉族, 2005年西南科技大学硕士, 讲师, 主要从事环境协调材料及环境医学研究.
国家自然科学基金资助项目, No. 40072020
通讯作者: 董发勤, 621010, 四川省绵阳市, 西南科技大学环境与资源学院. fqdong@swust.edu.cn
电话: 0816-6089120 传真: 0816-6089124
收稿日期: 2006-01-10 接受日期: 2006-02-08
Effect of low-voltage static electric field on growth of Esoherichia coli
Qun-Wei Dai, Fa-Qin Dong, Jian-Jun Deng
Qun-Wei Dai, Fa-Qin Dong, College of Environment and Resources, Southwest University of Science and Technology, Mianyang 621010, Sichuan Province, China
Jian-Jun Deng, Department of Microbiological Laboratory, the Forth People’s Hospital of Mianyang, Mianyang 621000, Sichuan Province, China
Supported by National Natural Science Foundation of China, No. 40072020
Correspondence to: Dr. Fa-Qin Dong, College of Environment and Resources, Southwest University of Science and Technology, Mianyang 621010, Sichuan Province, China. fqdong@swust.edu.cn
Received: 2006-01-10 Accepted: 2006-02-08
Abstract
AIM: To study the influence of static electric field with different intensities on the growth of Esoherichia coli.
METHODS: The static electric field of 3 and 24 volt were used upon the big tubes (Ф = 30 mm) in which E. coli were cultured. The optical density and bacterial colony numbers were measured during the growth process of E. coli. Meanwhile, the morphology of E. coli under the action of 24-volt static electric field was observed by scanning electron microscopy (SEM) comparatively analyzed with the control group.
RESULTS: The growth of E. coli obviously restrained during the prophase of culturing under the experiment conditions. Stable growth period of E. coli was advanced 2 and 4 hours under the action of static electric fields of 3 and 24 volt, respectively. E. coli appeared the second logarithm growth period 6-8 h after the first stable period started ......
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