Dynamics of SRGP-1–induced bending of junctions. (A) SRGP-1::GFP in dorsal epidermal cells shows dynamic bending along the junction. The box in the image on the left outlines the area that is shown in the time series from 0 to 6 min on the right. (B) SRGP-1::GFP dynamics along dorsal–ventral (DV) and anterior–posterior (AP) junctions in an elongating embryo show more permanent bending of the dorsal–ventral junction (arrow) and the appearance of projections along the anterior–posterior junction (arrowheads). (C) SRGP-1::GFP–induced projections do not appear to colocalize with F-actin as seen in a Z stack projection of an embryo expressing VAB-10(actin-binding domain)::GFP. Insets show magnification of the indicated areas.