Biosynthesis of coumarin and herniarin in lavender.
Coumarin and herniarin are formed in lavender from labeled o- and p-coumaric acids, respectively. At least part of the herniarin exists in lavender as a glycoside, presumably a 4-methoxycoumarinic acid glycoside, which yields free herniarin on hydrolysis. Biosynthesis of herniarin by successive para- and ortho- hydroxylation of cinnamic acid is indicated.
D000143:Acids; D002934:Cinnamates; D003373:Coumaric Acids; D003374:Coumarins / Q000378:metabolism*; D006900:Hydroxylation; D027523:Lavandula; D011422:Propionates; D014468:Umbelliferones
D000143:Acids; D002934:Cinnamates; D003373:Coumaric Acids; D003374:Coumarins; D011422:Propionates; D014468:Umbelliferones; C029010:cinnamic acid; C007929:herniarin; C030123:coumarin; C495469:p-coumaric acid
COUMARINS/metabolism