Extended Data Fig. 9: Mixing of toxins during a hydrodynamic trigger wave.
From: Collective intercellular communication through ultra-fast hydrodynamic trigger waves
Simulated for n = 123 organisms in an approximately 1-cm-diameter colony, at a cell density of n = 2.5 organisms per mm2. a, Final frame of Supplementary Video 11 after the trigger wave has passed. Coloured points indicate toxin particles released by different organisms in the colony. Grey organisms (ellipses) are triggered; black cells are not triggered. b, Trajectories of ten simulated toxin particles released by a single organism during a hydrodynamic trigger wave. Colours distinguish tracks of the different particles, black circles are the initial positions of the particles and the black points are the final positions of the particles. At the first contraction, the particles are mostly pulled inwards; with subsequent contractions of other cells, the particles follow a random walk and spread out.
