Biosynthesis of monoterpene scent compounds in roses

TitreBiosynthesis of monoterpene scent compounds in roses
Type de publicationArticle de revue
AuteurMagnard, Jean Louis, Roccia, Aymeric, Caissard, Jean-Claude, Vergne, Philippe, Sun, Pulu, Hecquet, Romain, Dubois, Annick, Hibrand-Saint Oyant, Laurence , Jullien, Frédéric, Nicole, Florence, Raymond, Olivier, Huguet, Stéphanie, Baltenweck, Raymonde, Meyer, Sophie, Claudel, Patricia, Jeauffre, Julien, Rohmer, Michel, Foucher, Fabrice , Hugueney, Philippe, Baudino, Sylvie, Bendahmane, Mohammed
EditeurAmerican Association for the Advancement of Science
TypeArticle scientifique dans une revue à comité de lecture
Date 03 juillet 2015
Titre de la revueScience
Résumé en anglais

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 as the Papa Meilland rose. Monoterpene biosynthesis in plants relies on plastid-localized terpene synthases. Combining transcriptomic and genetic approaches, we show that the Nudix hydrolase RhNUDX1, localized in the cytoplasm, is part of a pathway for the biosynthesis of free monoterpene alcohols that contribute to fragrance in roses. The RhNUDX1 protein shows geranyl diphosphate diphosphohydrolase activity in vitro and supports geraniol biosynthesis in planta.

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