Genetic deficiencies in mitophagy sensitize worms to UVC-induced neurodegeneration. For experiments, wild-type, pink-1 mutant, and pdr-1 mutant worms were exposed to UVC radiation on three consecutive days beginning at the L4 larval stage (Panel A). Neurodegeneration was then measured 24 h (Panel B), 48 h (Panel C), and 72 h (Panel D) following exposure. Scoring was performed as described in Methods: 0 represents no degeneration, while increasing numbers represent increasing severity of degeneration. Data shown are combined from three biological replicates with each treatment group comprising n > 30 worms scored for dendrites on each of 4 cephalic neurons for a total of >120 dendrites scored.