FIGURE 2:

Severed contractile rings of ∆imp2 cells can heal. (A) Recoil and healing of typical severed wild-type (top) and ∆imp2 (bottom) cells where the visible severed tip recoils out of the imaging plane. Top row, inverted gray LUT. Bottom row, Fire LUT. Green arrowheads, sites of ablation. (B) Graph showing the ability of a severed wild-type or ∆imp2 contractile ring to heal after ablation vs. maximum displacement A. (C) Graph of the recoil displacement (5 s rolling average) for a single severed tip of a wild-type or ∆imp2 contractile ring showing recoil and healing. Dotted lines, time at which healing begins. Tracking of the severed tips of a wild-type ring show the progressive creeping motion until the tips joined across the gap. Tracking of the severed tips of the ∆imp2 ring shows initial progressive creeping motion of the tip until tracking appearance of a strand ∼170 s after ablation.