B) After 22 hours of paraquat induced oxidative stress, hrpa-1(∆) animals showed increased degeneration of tail glutamatergic (phasmid) neurons, based on defective dye uptake. Defective dye uptake indicates either neuron process degeneration or death. This defect is rescued by introduction of hrpa-1HsLCWT, but not hrpa-1HsLCD290V or hrpa-1HsLCempty. N= 6-12 animals/genotype/trial, significance from two tailed t-test. 