How Sweet Osmanthus Makes Its Signature Aroma | Newswise

The beloved fragrance of sweet osmanthus may now be understood at its molecular source. This study reveals how jasmonic acid, a key plant hormone, controls the production of linalool, one of the flower’s signature scent compounds. The researchers found that jasmonic acid promotes linalool biosynthesis by lifting a molecular brake: the protein OfJAZ3 suppresses the transcription factor OfMYB21, but when jasmonic acid rises, OfJAZ3 is degraded, allowing the linalool synthase gene OfTPS2 to be ac

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