Xanthotoxin and Other Furanocoumarins as Phytoalexins in Pastinaca sativa L. roots

Abstract

Our results confirm the presence of the furanocoumarins psoralen, xanthotoxin, isopimpinellin, angelicin and bergapten as normal constituents of Pastinaca sativa roots.  However, the amounts of these compounds were increased in induced roots.  The amount of increase in the induced roots varied depending on the inducing agent and time of incubation. In addition the results show for the first time the presence of pimpinellin and isobergapten as constitutive antifungal compounds in P. sativa roots.