Abstract
Taking the time to stop and smell the roses can help you appreciate the simple beauty of life. Recently, a team of French researchers took the time to uncover how roses produce these sweet odors, and found that the plants do so through an unexpected route. The findings could help rose breeders develop flowers with more powerful scents. Geraniol, a monoterpene, makes up much of rose oil’s signature scent. In many plants, geraniol synthase, an enzyme that belongs to the terpene synthase family, is responsible for producing the fragrant molecule. So researchers were surprised to find that, in roses, geraniol biosynthesis is mediated instead by a completely different enzyme. Through genetic mapping analysis, the team found that highly scented roses expressed the gene, RhNUDX1, at greater levels than their less fragrant counterparts (Science 2015, DOI: 10.1126/science.aab0696). RhNUDX1 codes for a new enzyme in the Nudix hydrolase family. The enzyme cleaves ...
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