Biosynthesis of monoterpene scent compounds in roses
Résumé
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.
Domaines
Sciences du Vivant [q-bio]| Origine | Fichiers produits par l'(les) auteur(s) |
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