Freshly-Cut Grass Smell Actually Plant Distress Call
The lovely scent of cut grass is the reek of plant anguish: When attacked, plants release airborne chemical compounds. Now scientists say plants can use these compounds almost like language, notifying nearby creatures who can "rescue" them from insect attacks.
A group of German scientists studying a wild tobacco plant noticed that the compounds it released - called green leaf volatiles or GLVs - were very specific.
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