| Title: | A Comparative Analysis of Floral Scent Compounds in Intraspecific Cultivars of Prunus mume with Different Corolla Colours |
| Author(s): | Zhang T; Bao F; Yang Y; Hu L; Ding A; Ding A; Wang J; Cheng T; Zhang Q; |
| Address: | "Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding; National Engineering Research Center for Floriculture; Beijing Laboratory of Urban and Rural Ecological Environment; Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education; School of Landscape Architecture, Beijing Forestry University, Beijing 100083, China" |
| DOI: | 10.3390/molecules25010145 |
| ISSN/ISBN: | 1420-3049 (Electronic) 1420-3049 (Linking) |
| Abstract: | "Prunus mume is the only fragrant flowering species of Prunus. According to the previous studies, benzyl acetate and eugenol dominate its floral scent. However, the diversity of its floral scents remains to be elucidated. In this work, the floral volatiles emitted from eight intraspecific cultivars of P. mume with white, pink and red flowers, were collected and analyzed using headspace solid-phase microextraction combined with gas chromatograms-mass spectrometry (HS-SPME-GC-MS). In total, 31 volatile compounds were identified, in which phenylpropanoids/benzenoids accounted for over 95% of the total emission amounts. Surprisingly, except for benzyl acetate and eugenol, several novel components, such as benzyl alcohol, cinnamyl acohol, cinnamy acetate, and benzyl benzoate were found in some cultivars. The composition of floral volatiles in cultivars with white flowers was similar, in which benzyl acetate was dominant, while within pink flowers, there were differences of floral volatile compositions. Principal component analysis (PCA) showed that the emissions of benzyl alcohol, cinnamyl alcohol, benzyl acetate, eugenol, cinnamyl acetate, and benzyl benzoate could make these intraspecific cultivars distinguishable from each other. Further, hierarchical cluster analysis indicated that cultivars with similar a category and amount of floral compounds were grouped together. Our findings lay a theoretical basis for fragrant plant breeding in P. mume" |
| Keywords: | Benzene Derivatives/isolation & purification Flowers/chemistry Gas Chromatography-Mass Spectrometry Odorants/*analysis Phenylpropionates/isolation & purification Plant Breeding Plant Extracts/analysis Principal Component Analysis Prunus/*chemistry Solid P; |
| Notes: | "MedlineZhang, Tengxun Bao, Fei Yang, Yongjuan Hu, Ling Ding, Anqi Ding, Aiqin Wang, Jia Cheng, Tangren Zhang, Qixiang eng Comparative Study Switzerland 2020/01/08 Molecules. 2019 Dec 30; 25(1):145. doi: 10.3390/molecules25010145" |
