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A possible biosynthetic pathway of methyl eugenol in an orchid flower of a bactrocerophilous Bulbophyllum species. PAL, phenylalanine ammonia lyase; CCR, cinnamoyl-CoA reductase; CAD, cinnamyl alcohol dehydrogenase; CFAT, coniferyl alcohol acyltransferase; EGS, eugenol synthase; EOMT, eugenol O-methyltransferase. High quality figures are available online.
