Biosynthesis of kelsoene in cultured cells of liverworts Ptychanthus striatus
Abstract
The most uncommon tricyclic sesquiterpenes, kelsoene 1 and prespatane 2, were isolated from cultured cells of liverwort Ptychanthus striatus, and the labelling patternof kelsoene biosynthesized from exogenous [2-13C]-mevalonate suggested that kelsoene is biosynthesized from germacradienyl cation via alloaromadendranyl cation.