Biosynthesis of monoterpene scent compounds in roses

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 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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Journal articles
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Contributor : Okina Université d'Angers <>
Submitted on : Tuesday, November 15, 2016 - 2:49:24 PM
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Jean Louis Magnard, Aymeric Roccia, Jean-Claude Caissard, Philippe Vergne, Pulu Sun, et al.. Biosynthesis of monoterpene scent compounds in roses. Science, American Association for the Advancement of Science, 2015, 349 (6243), pp.81-83. ⟨10.1126/science.aab0696 ⟩. ⟨hal-01397122⟩



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