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Researchers Dan Klessig, Sang-Wook Park and Evans Kaimoyo with an infected tobacco plant.
Dan Klessig, Sang-Wook Park and Evans Kaimoyo examine a tobacco plant that was infected with tobacco mosiac virus during their study; their study lead to identification of an elusive signal for triggering plant-wide immunity. The signal is methyl salicylate, an aspirin-like compound.
Credit: Dan Klessig, Boyce Thompson Institute for Plant Research
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Related story: Scientists to Sick Plants: Take Two Doses of an Aspirin-Like Hormone and Call Me in the Morning