  In E. coli the determination of the middle of the cell and the proper
placement of the septum is essential to the division of the cell. This step
depends on the proteins MinC, MinD, and MinE. Exposure to a constant external
field e.g., an electric field or magnetic field may cause the bacteria cell
division mechanism to change resulting in an abnormal cytokinesis. To have
insight into the effects of an external field on this process, we model the
process using a set of the deterministic reaction diffusion equations, which
incorporate the influence of an external field, min protein reactions, and
diffusion of all species. Using the numerical method, we have found some
changes in the dynamics of the oscillations of the min proteins from pole to
pole when compared that of without the external field. The results show some
interesting effects, which are qualitatively in good agreement with some
experimental results.
