Dynamical pattern formation. (a) Spatio-temporal diagram showing the different regimes of operation (front given by r
). (b) Dynamical behavior in response to an external signal of IPTG (I(r = 0, τ = 0) = 106 nM). (c and d) Spatial plot at different times (τ = 1 and τ = 3) showing the generated patterns when AHL is externally introduced but not produced (κ = 0) nor degraded (λ
= 0) into the cells (A(r = 0, τ = 0) = 104 nM). We use a white/black scale denoting high/low concentrations.