Hopeaphenol targets histidine kinase signaling across kingdoms to suppress bacterial virulence and potentiate plant immunity
Small molecules can control plant disease either by disarming the pathogen or by priming host immunity, but single compounds that do both are rare and mechanistically unexplained. Here we show that hopeaphenol (HP), a resveratrol tetramer from stilbene-producing plants, acts on histidine kinase (HK) signaling on both s...