中国特有且花朵芬芳馥郁的云南野丁香（茜草科）的花香化学
Floral Scent Chemistry of Luculia yunnanensis (Rubiaceae), a Species Endemic to China with Sweetly Fragrant Flowers.
作者信息
Li Yuying, Wan Youming, Sun Zhenghai, Li Taiqiang, Liu Xiongfang, Ma Hong, Liu Xiuxian, He Rui, Ma Yan, Li Zhenghong
机构信息
Research Institute of Resource Insects, Chinese Academy of Forestry, Kunming 650224, China.
School of Gardening, Southwest Forestry University, Kunming 650224, China.
出版信息
Molecules. 2017 May 25;22(6):879. doi: 10.3390/molecules22060879.
plants are famed ornamentals with sweetly fragrant flowers. Hu is an endemic plant from Yunnan Province, China. Headspace-solid phase microextraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS) was used to identify the volatile organic compounds (VOCs) of the different flower development stages of for the evaluation of floral volatile polymorphism. The results showed that a total of 40 compounds were identified at four different stages. The main aroma-active compounds were 3-carene, α-cubebene, α-copaene, δ-cadinene, and isoledene. Floral scent emission had the tendency to ascend first and descend in succession, reaching its peak level at the initial-flowering stage. The richest diversity of floral volatiles was detected at the full-flowering stage. Principal component analysis (PCA) indicated that the composition and its relative content of floral scent differed at the whole flower development stage. In comparison with the other two species of ( and ), the composition and its relative content of floral scent were also different among the tree species.
植物是著名的观赏植物，花朵芬芳馥郁。胡颓子是中国云南省的一种特有植物。采用顶空固相微萃取-气相色谱-质谱联用技术（HS-SPME-GC-MS）对胡颓子不同花发育阶段的挥发性有机化合物（VOCs）进行鉴定，以评估花香挥发性多态性。结果表明，在四个不同阶段共鉴定出40种化合物。主要的香气活性化合物为3-蒈烯、α-荜澄茄烯、α-可巴烯、δ-杜松烯和异喇叭烯。花香释放呈现先上升后下降的趋势，在初花期达到峰值。在盛花期检测到的花香挥发性物质种类最为丰富。主成分分析（PCA）表明，在整个花发育阶段，花香的成分及其相对含量存在差异。与胡颓子属的其他两个物种（沙枣和牛奶子）相比，不同树种之间花香的成分及其相对含量也有所不同。
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