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Major routes in phenylpropanoid/flavonoid pathway: red line: lignins; blue line: gallotannins and elagitannins; dark-green line: coumarins; orange line: stillbenoids; purple line: isoflavonoids; light-green line: flavonoids (flavanols, 3-flavonols); pink line: catechins, anthocyanins. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)
