
Phytochemistry p. 2233 - 2236 (1991)
Update date:2022-08-11
Topics:
Yazaki, Kazufumi
Heide, Lutz
Tabata, Mamoru
The enzymatic formation of p-hydroxybenzoic acid from p-coumaric acid has been detected in cell free extracts of Lithospermum erythrorhizon cell cultures.In the absence of NAD, p-hydroxybenzaldehyde is formed instead of p-hydroxybenzoic acid.The reaction is specific to p-coumaric acid.In addition, a p-hydroxybenzaldehyde dehydrogenase activity is also found.The results suggest that the reaction mechanism is non-oxidative.Key Word Index - Lithospermum erythrorhizon; Boraginaceae; cell culture;biosynthesis; p-hydroxybenzoic acid; p-coumaric acid; p-hydroxybenzaldehyde; shikonin.
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