Biosynthesis of monoterpene scent compounds in roses
- Magnard, Jean-Louis
- Roccia, Aymeric
- Caissard, Jean-Claude
- Vergne, Philippe
- Sun, Pulu
- Hecquet, Romain
- Dubois, Annick
- Hibrand-Saint Oyant, Laurence
- Jullien, Frederic
- Nicolè, Florence
- Raymond, Olivier
- Huguet, Stephanie
- Baltenweck-Guyot, Raymonde
- Meyer, Sophie
- Claudel, Patricia
- Jeauffre, Julien
- Rohmer, Michel
- Foucher, Fabrice
- Hugueney, Philippe
- Bendahmane, Mohammed
- Baudino, Sylvie
Publication date
January 2015
DOI Publisher
American Association for the Advancement of Science (AAAS)Abstract
The scent of roses (Rosa x hybrida) is composed of hundreds of volatile molecules.Monoterpenes represent up to 70% percent of the scent content in some cultivars, such asthe Papa Meilland rose. Monoterpene biosynthesis in plants relies on plastid-localizedterpene synthases. Combining transcriptomic and genetic approaches, we show thatthe Nudix hydrolase RhNUDX1, localized in the cytoplasm, is part of a pathway for thebiosynthesis of free monoterpene alcohols that contribute to fragrance in roses. TheRhNUDX1 protein shows geranyl diphosphate diphosphohydrolase activity in vitro andsupports geraniol biosynthesis in planta
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