ER stress response variant ER stress resistant WBPhenotype:0002634 Animals exhibit a resistance to endoplasmic reticulum (ER) stressors such as an accumulation of unfolded proteins or the presence of chemicals that induce ER stress, such as dithiothreitol (DDT) or tunicamycin, compared to controls. This may mean that animals fare better than controls in terms of survival or some metric of health when exposed to an inducer of ER stress. C_elegans_phenotype_ontology