Figure 3
From: Phototaxis as a Collective Phenomenon in Cyanobacterial Colonies
Phototaxis in the direction of light. (a) Snapshot of a flat colony of cells that move towards a light source placed at infinity (to the right of the colony) corresponding to a value of p photo = 0.1 at t = 105. (b) Corresponding rose plots for the net directions of the cells, (calculated over 5 time steps). (c,d) Trajectories of individual cells over time, with two randomly chosen cells coloured distinctly to illustrate characteristic paths. (c) The x-component of the trajectories, with the edge of the colony indicated by a dashed line. (d) The y-component of the trajectories, showing finger formation.
