Figure 5. Promoting effect of cell surface stiffness on furrow ingression.

(A) Spatio-temporal changes in cortical stiffness K_c estimated in the absence of the contractile ring force (Force). (B) Calculated shapes under the same estimated spatial distribution of K_c at furrow-radius = 0.3–0.2 in (A). “in vivo” coincides with the in vivo cell shape, while “Var1-2” do not. Bending energy for each shape is shown in Figure S12. r, z, and s are defined in Fig. 1B.