ADH5 and infection: Rather opposing results, when GSNOR was proposed to be a positive regulator of plant immune responses suppressing pathogen growth early in the infection process, were described earlier by Feechan et al. [24] in A. thaliana plants exposed to diverse microbial pathogens, e.g., bacteria Pseudomonas syringae, powdery mildew Blumeria graminis, and downy mildew Hyaloperonospora parasitica.