Movie 1

Animation showing the time course (250 time steps) of auxin, cytokinin (ck), PIN (pin) and the generic cytokinin response gene that drives division (div) in a model run starting from 20 cells in which a steady state with two auxin poles is formed before growth begins. After growth and division up to 54 cells is activated (at 100 time steps) the model evolves to a new steady state with four poles. See also Figure 7C,D for plots from the same simulation.