Researchers have finally identified one of the protective compounds plants use to trick bacteria into attacking too soon. The name of that compund is rosmarinic acid. It is a plant’s secret weapon for disarming bacteria, by mimicking a molecule that bacteria use to signal each other in response to changes in population density. The compound fools bacteria into sending signals to their peers to invade a plant before the microbes have enough troops, so the plant can fight them off, the scientists speculate. https://www.sciencenews.org/article/plants-trick-bacteria-attacking-too-soon? Paper: http://stke.sciencemag.org/content/9/409/ra1
Have you ever studied the concept that plants and trees can and do communicate? http://www.wired.com/2013/12/secret-language-of-plants/