<i>Ipomoea batatas</i> (IMAGE)
Caption
Typical herbivore damage on the leaves of sweet potato Ipomoea batatas: Researchers found that one single volatile from the plant's chemical vocabulary, namely (E)-3,8-dimethyl-1,4,7-nonatriene or DMNT, can alert neighboring plants to activate their defenses against insect attack.
Credit
Anja Meents, Max Planck Institute for Chemical Ecology
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