by Tokyo University of Science
Nature has its way of maintaining balance. This statement rightly holds true for plants that are eaten by herbivores—insects or even mammals. Interestingly, these plants do not just silently allow themselves to be consumed and destroyed; in fact, they have evolved a defense system to warn them of predator attacks and potentially even ward them off. The defense systems arise as a result of inner and outer cellular signaling in the plants, as well as ecological cues. Plants have developed several ways of sensing damage; a lot of these involve the sensing of various "elicitor" molecules produced by either the predator or the plants themselves and initiation of an "SOS signal" of sorts.
In a recently published review in the journal Trends in Plant Science, Professor Gen-ichiro Arimura from Tokyo University of Science, Japan, encapsulates the research on the herbivory-sensing mechanism of plants through elicitors. Commenting of the immense value of these elicitors, Prof. Arimura states, "This review focuses mainly on elicitors because they are timely, novel, and have potential biotechnological applications."