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Citation: ZHOU Shengxue, MA Jie. Effects of Low Direct Current Electric Field on the Growth and Metabolism of Bacillus subtilis[J]. Chinese Journal of Applied Chemistry, ;2012, 29(4): 422-427. doi: 10.3724/SP.J.1095.2012.00198 shu

Effects of Low Direct Current Electric Field on the Growth and Metabolism of Bacillus subtilis

ZHOU Shengxue ^a,, ,
MA Jie ^b

1.
a College of Chemistry & Chemical Engineering, Ningxia Teachers'University, Guyuan 756000, China;
2.
b Department of Chemistry, Capital Normal University, Beijing 100048, China

Corresponding author: ZHOU Shengxue,
Received Date: 11 May 2011
Available Online: 6 September 2011
Fund Project: 宁夏自然科学基金资助项目(NZ10227) (NZ10227)宁夏师范学院科研项目资助(YB2010010) (YB2010010)

The growth and metabolism of Bacillus subtilis 63501 were investigated under low direct current(DC) electric filed.The effects of the electric filed on the growth,pH values,ATPase activity,total amount of protein and cells membrane penetration of Bacillus subtilis 63501 solutions were studied.The surface morphologies of the bacteria were also characterized by transimission electronic microscopy(TEM).The results indicated that the growth of such bacteria could be enhanced under an appropriate DC electric field.The ATPase activity of Bacillus subtilis 63501 could be multiplied by 1.9,3.5 and 3.8 times during the control in prophase,anaphase and stable phase under 0.0455×10^-3 A/cm² current density,suggesting that suitable direct current density can promote the metabolism activity of Bacillus subtilis 63501,which is consistent with the results form TEM observations.
- direct current electric field,
- metabolism,
- Bacillus subtilis,
- ATPase activity
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