This is a review of Brendolise et al. bioRxiv 293050; doi: https://doi.org/10.1101/293050 posted on April 1, 2018. This paper adds to a current body of research detailing the resistance mechanism triggered by the Pseudomonas syringe pv. tomato effector HopQ1 in the model plant Nicotiana benthamiana. This plant can be used as a source of novel disease resistance genes against plant pathogens.