Conversion of Citronellyl Diphosphate and Citronellyl β-d-Glucoside into Rose Oxide by Pelargonium graveolens

Deuterium-labeled citronellyl diphosphate and citronellyl β-d-glucoside were fed to Pelargonium graveolens. Both precursors were converted into cis-/trans-rose oxide. Citronellyl diphosphate is more effectively converted into rose oxide. The phloem exudate of P. graveolens was analyzed after enzymatic cleavage of the glucosidated and phosphorylated volatiles. It could be shown that glucosidically bound citronellol is translocated in the plant....