Fig. 4
From: Mechanisms of wound closure following acute arm injury in Octopus vulgaris
Cell death in wound-edge skin and stump. Wound margins at 2 h (a, d), 6 h (b, e), and 24 h (c, f) post amputation were stained for TUNEL (terminal deoxynucleotidyl transferase dUTP nick end labelling; green in upper panels, greyscale in lower panels), and counterstained DAPI (blue). Hatched white boxes (a, b, c) are magnified in (d, e, f). Arrow overlies central tissue and highlights width of wound. WE, wound-edge epithelium; WB, wound bed. Scale bars: a-c: 200 μm; d-f: 50 μm