Please don’t tell PETA or we won’t be able to eat anything! From Quanta Magazine:
Itâ€™s now well established that when bugs chew leaves, plants respond by releasing volatile organic compounds into the air. By Karbanâ€™s last count, 40 out of 48 studies of plant communication confirm that other plants detect these airborne signals and ramp up their production of chemical weapons or other defense mechanisms in response. â€śThe evidence that plants release volatiles when damaged by herbivores is as sure as something in science can be,â€ť said Martin Heil, an ecologist at the Mexican research institute Cinvestav Irapuato. â€śThe evidence that plants can somehow perceive these volatiles and respond with a defense response is also very good.â€ť
[ . . . ]
Scientists are also exploring how the messages from these signals might spread. Just a few months ago, the plant signaling pioneer Ted Farmer of the University of Lausanne discovered an almost entirely unrecognized way that plants transmit information â€” with electrical pulses and a system of voltage-based signaling that is eerily reminiscent of the animal nervous system. â€śItâ€™s pretty spectacular what plants do,â€ť said Farmer. â€śThe more I work on them, the more Iâ€™m amazed.â€ť
Much more at the link. Day of the Triffids was just a movie, right?
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