Site of prenylation in anthraquinone biosynthesis in cell cultures of Galium mollugo

Abstract
The mode of prenylation during the biosynthesis of lucidin primeveroside was elucidated by locating the 13C-label in lucidin primeveroside isolated from cell cultures of Galium mollugo, to which 4-(2′-[C13]carboxyphenyl)-4-oxobutanoic acid was administered.