Fig. 4
From: The effects of plant cysteine proteinases on the nematode cuticle
SEM images of cpi-2(RB1207, ok1256) C. elegans incubated in papain or papain + E64. a cpi-2 (RB1207, ok1256) C. elegans worms incubated in papain + E64 for 30 min retained their intact status with the alae (arrowed yellow) visibly running longitudinally along the worm. b At 10 min of incubation in papain, cpi-2(RB1207, ok1256) C. elegans showed wrinkling of the cuticles. c By 15 min, extensive blistering of the cuticles was apparent. At 30 min, most of the cuticle was lost or split along the alae, exposing the internal cavity (d). Bar = 50 µm