Diversity in emergent cell locomotion from the coupling cytosolic and cortical Marangoni flows with reaction–diffusion dynamics
Fig 7
Cell characteristics as a function of cytoplasmic and cortical flow coupling constants and
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The parameters range is the same as for the phase diagram graphs in Fig 6. Red lines denote borders of regions with different motility patterns. Left panels present data for cells initiated with a rotational concentration profile, while on the right cells were initiated with an oscillatory concentration profile. The magnitude for each quantity is denoted with the colour code, as presented in the colour bar above each diagram. (A) The average speed of cell calculated for simulation time 900–1000s. (B) Characteristic length of motion. The length is defined as the circumference of the trajectory for circular runners, length of a segment between two turning points for alternating runners and run-and-turn cells. It is set to zero for stationary cells and infinite for persistent runners. (C) Activator concentration at its peak in the membrane pattern. (D) Width of the pattern of activator concentration relative to the cell circumference size. Properties of the membrane patterns shown in C and D were extracted 1 000 s after the onset of the simulation, or at the closest maximum for the oscillatory or run and turn pattern.