Incorporation experiments with [Me-2H3]methionine, [1-13C]- and [1,2-13C2]- acetate showed that the methyl groups of xanthofusin are derived from methionine, and the remaining carbon atoms are derived from three intact acetate units. Incorporation of13C-labelled 1,3-dihydroxy-2,4-dimethylbenzene shows that this is a probable intermediate. Three possible pathways are discussed, namely a triketide origin of xanthofusin, a route via a tetraketide but with loss of the starter unit and, finally, a route including a triketide with a malonate starter unit. © 1995.
Breinholt, J., Damtoft, S., Frederiksen, L. B., Hansen, L. B. L., & Jensen, S. R. (1995). Biosynthesis of xanthofusin, a tetronic acid metabolite of Fusicoccum SP. Phytochemistry, 39(6), 1359–1362. https://doi.org/10.1016/0031-9422(95)00175-7