Figure 2.

Center finding during growth and division. (A) Only to demonstrate the correct center detection, a unilateral enlargement of the field is assumed. For that, the rightmost spatial element is doubled (after each 100,000 iterations = 50 pixel lines). Both daughter elements initially have identical concentrations. The FtsZ signal remains at the actual central position. (B) After separation of the large field into two parts, traveling MinE waves and the pole-to-pole oscillation of MinD are re-established quickly (shown is the left half). (C) The FtsZ ring becomes relocalized rapidly to the new center. For animated simulations, see the supporting information.