Bistable front dynamics in a contractile medium: Travelling wave fronts and cortical advection define stable zones of RhoA signaling at epithelial adherens junctions
Fig 2
Phase-portrait of the bistable spatially uniform system described by Eq (1).
The steady states are at the intersections of the nullclines (red and yellow curves), the light green/blue curves show the stable/unstable manifolds of the unstable steady state, and the arrows show the direction and rate of change at different locations on the RhoA-NMIIA phase-plane. The parameters are: α = 1, κ1 = κ2 = 0.4, n = 4. For this choice of parameters the location of the unstable saddle point is closer to the low fixed point at origin.