Ptuj Municipal Service Corporation, Puhova ulica 10, SI-2250 Ptuj, Slovenia.
Bioresour Technol. 2012 Sep;120:225-32. doi: 10.1016/j.biortech.2012.06.023. Epub 2012 Jun 17.
The aim of this study was to explore the influence of a moderate static magnetic field (SMF) of different densities on Escherichia coli and Pseudomonas putida that are commonly found in wastewater treatment plants. In line with literature reports that SMF increases the efficiency of wastewater treatment the findings of this study indicated that SMF negatively influenced the growth but positively influenced the enzymatic activities and ATP levels of the two model bacteria. The inhibitory effect of SMF on growth of E. coli and P. putida was most pronounced at their optimal growth temperature (37°C and 28°C respectively) and was reversible shortly after the SMF had been terminated. Finally, the results suggested that the induced energy metabolism reflected in higher dehydrogenase activities and ATP levels may be more important for survival, and adaptation to SMF induced stress than the increase in the expression of the rpoS gene.
本研究旨在探讨不同密度的中等静磁场（SMF）对常见于污水处理厂的大肠杆菌和铜绿假单胞菌的影响。根据 SMF 可提高污水处理效率的文献报道，本研究的结果表明，SMF 对两种模式细菌的生长有负面影响，但对其酶活性和 ATP 水平有积极影响。SMF 对大肠杆菌和铜绿假单胞菌生长的抑制作用在其最佳生长温度（分别为 37°C 和 28°C）下最为明显，在 SMF 终止后不久即可逆转。最后，结果表明，较高的脱氢酶活性和 ATP 水平所反映的诱导能量代谢可能对生存和适应 SMF 诱导的应激比 rpoS 基因表达的增加更为重要。
