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How Beets Became Beet-Red

Noted: Plants modify tyrosine by adding other molecules to create an enormous array of useful substances. This is how morphine is made in the opium poppy, and mescaline in cactuses. Intrigued by this process, Hiroshi Maeda, a professor at University of Wisconsin and senior author on the paper, collaborated with beet experts to study how the plants make betalains from tyrosine.