Hebrew University of Jerusalem researchers have developed a molecular bio sensor to detect early signs of plant stress, allowing farmers time to prevent crop failures. The sensor has been tested on potatoes – vital for world food security (and Israeli exports) but could be adapted to other key crops.
https://www.afhu.org/2021/05/25/ever-wonder-what-a-potato-feels/
https://academic.oup.com/plphys/advance-article-abstract/doi/10.1093/plphys/kiab159/6212091