Flowers of the early Polyantha roses, ‘Pâquerette’, ‘Mignonette’ and ‘Anne-Marie de Montravel’, have an unusual odor not found in other roses. Their ancestor is Rosa multiflora, a wild species native to Japan. In particular, ‘Anne-Marie de Montravel’ has a citrus scent with an old wooden closet-like odor. Gas chromatography (GC)-mass spectrometry analysis of the scent components of these roses revealed the presence of several terpenoids, benzenoids, and hydrocarbons, as well as the fatty acid derivatives methyl (E, Z)-2,4-decadienoate (MDD) and methyl (E, E, Z)-2,4,6-decatrienoate (EEZ-MDT). GC-olfactometry analysis of scent components of ‘Anne-Marie de Montravel’, identified EEZ-MDT and its isomers as the source of the unpleasant odor. MDD and EEZ-MDT are known as stink bug pheromones, but they were first detected in the scent of plants. We also analyzed the floral scent of several roses related to R. multiflora, namely: two plants of R. multiflora, two Hybrid Multiflora roses (‘Crimson Rambler’ and ‘Rose-Marie Viaud’), eight Polyantha roses (‘Cécile Brunner’, ‘Clothilde Soupert’, ‘Gloire des Polyantha’, ‘Madame Norbert Levavasseur’, ‘Marie Daly’, ‘Marie Pavié’, R. multiflora ‘Nana’, ‘Yvan Misson’), and one Miniature rose (‘Gourmet Popcorn’). EEZ-MDT and/or its isomers were detected not only in ‘Marie Daly’, ‘Marie Pavié’, R. multiflora ‘Nana’, and ‘Gourmet Popcorn’, which had an old wooden closet-like odor, but also in R. multiflora, ‘Rose-Marie Viaud’ and ‘Yvan Misson’, which do not exhibit that unpleasant odor. To produce the unusual odor in the rose fragrance, the EEZ-MDT and its isomers content must be above a certain percentage of the scent components.

早期多花玫瑰“Pâquerette”、“Mignonette”和“Anne-Marie de Montravel”的花朵具有其他玫瑰所没有的不寻常气味。它们的祖先是野蔷薇，一种原产于日本的野生品种。特别是“Anne-Marie de Montravel”具有柑橘香味，带有旧木衣柜般的气味。对这些玫瑰的香味成分进行气相色谱 (GC)-质谱分析，发现其中存在多种萜类化合物、苯类化合物和碳氢化合物，以及脂肪酸衍生物 ( E, Z )-2,4-癸二烯酸甲酯 (MDD)和( E,E,Z )-2,4,6-癸三烯酸甲酯(EEZ-MDT)。对“Anne-Marie de Montravel”的气味成分进行 GC 嗅觉分析，确定 EEZ-MDT 及其异构体是令人不快的气味的来源。 MDD 和 EEZ-MDT 被称为臭虫信息素，但它们首先是在植物的气味中被发现的。我们还分析了几种与多花玫瑰有关的花香，即：两种多花玫瑰、两种杂交多花玫瑰（'Crimson Rambler' 和 'Rose-Marie Viaud'）、八朵多花玫瑰（'Cécile Brunner'） 、“Clothilde Soupert”、“Gloire des Polyantha”、“Madame Norbert Levavasseur”、“Marie Daly”、“Marie Pavié”、R. multiflora “Nana”、“Yvan Misson”）和一朵微型玫瑰（“美食爆米花”） ）。 EEZ-MDT 和/或其异构体不仅在“Marie Daly”、“Marie Pavié”、R. multiflora “Nana”和“Gourmet Popcorn”（具有旧木柜气味）中检测到，还在R. multiflora “Nana”和“Gourmet Popcorn”中检测到。. multiflora、“Rose-Marie Viaud”和“Yvan Misson”，它们没有那种难闻的气味。为了在玫瑰香中产生不寻常的气味，EEZ-MDT及其异构体含量必须高于香味成分的一定百分比。