Conversion of citronellyl diphosphate and citronellyl beta-D-glucoside into rose oxide by Pelargonium graveolens

Deuterium-labeled citronellyl diphosphate and citronellyl beta-D-glucoside were fed to Pelargonium graveolens. Both precursors were converted into cis -/trans-rose oxide. Citronellyl diphosphate is more effectively converted i nto rose oxide. The phloem exudate of P. graveolens was analyzed after enzy matic cleavage of the glucosidated and phosphorylated volatiles. It could b e shown that glucosidically bound citronellol is translocated in the plant. Phosphorylated citronellol could not be detected.