Plants trick bacteria into attacking too soon
Compound makes pathogens vulnerable to botanical defenses
![raspberry leaf and microbes](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2016/02/022016_mystery-solved.jpg?fit=860%2C460&ssl=1)
This raspberry leaf (in a closeup, colorized electron micrograph) is covered in a biofilm of bacteria and fungi. Rosmarinic acid may keep bacterial visitors from overtaking a plant.
Stefan Diller/Science Source