Analysis of Floral Scent Components of <i>Rosa foetida</i> Herrm., a Rose with an Unpleasant Fragrance

Rosa foetida Herrm. is an important wild rose that contributed to the birth of modern yellow cultivars. It also well known for unpleasant odor, not prevalent in other roses, emanating from its petals. We analyzed floral scent R. and sport cultivars, var. bicolor (Jacq.) Willm. f. persiana (Lem.) Rehd., identify causative compounds their offensive odor. Fatty acid derivatives 2,4-decadienal (2,4-DA), 2,4-decadienol (2,4-DO), (Z)-jasmone were detected by gas chromatography-mass spectrometry along with several terpenoids, phenylpropanoids, hydrocarbons. Among them, 2,4-DA 2,4-DO identified as This first detection these fatty flowers. eight descendant cultivars foetida: ‘Agnes’, ‘Harison’s Yellow’, ‘Rhodophile Gravereaux’, ‘Schloss Seusslitz’, ‘Soleil d’Or’, ‘Star Persia’, ‘The Queen Alexandra Rose’, ‘Williams’ Double Yellow’. only smell Persia’. No was found emit acids. analysis odor roses.