Imagine if a plant in a farmer’s field could warn a grower that it needs water? Or if a farmer could signal to plants that dry weather lies ahead, thereby prompting the plants to conserve water?

It may sound extraordinary, but researchers at the Center for Research on Programmable Plant Systems (CROPPS) have taken a major step toward advancing such two-way communication with plants.

A new study, published in the Proceedings of the National Academy of Sciences, has solved a century-old conundrum of how plants internally signal stress. By understanding how plant communication systems work, the team may then begin to exploit those signals to create plants that can communicate with people and each other, and be programmed to respond to specific stressors.