Genetically encoded biosensor tracks plants' immune hormone in real time

From willow bark remedies to aspirin tablets, salicylic acid has long been part of human health. It also lies at the heart of how plants fight disease. Now, researchers at the University of Cambridge have developed a pioneering biosensor that allows scientists to watch, for the first time, how plants deploy this critical immune hormone in their battle against pathogens.

source https://phys.org/news/2025-10-genetically-encoded-biosensor-tracks-immune.html