College of Landscape Architecture, Beijing Forestry University, Beijing Key Laboratory of Ornamental Plants Germplasm Innovation and Molecular Breeding, National Engineering Research Center for Floriculture, Beijing, 100083, P. R. China.
Key Laboratory of Plant Resources/Beijing Botanical Garden, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, P. R. China.
Chem Biodivers. 2021 Feb;18(2):e2000848. doi: 10.1002/cbdv.202000848. Epub 2021 Feb 3.
Paeonia cultivars are famous ornamental plants, and some of them are also traditional Chinese medicinal resources. Intersubgeneric hybrids of Paeonia (IHPs) are formed by the hybridization of herbaceous peony (Paeonia lactiflora) and tree peony (Paeonia×suffruticosa or lutea hybrid tree peony). The phenotypic characteristics of IHPs are similar to those of herbaceous peony, and their root systems are large and vigorous. However, their medicinal value has not been reported yet. In this study, the roots of eight IHP samples were analyzed by high performance liquid chromatography quadrupole time-of-flight mass spectrometry (HPLC-Q-TOF-MS/MS). A total of 18 compounds were identified, including phenols, paeonols, monoterpene glycosides, and tannins. The contents of monoterpene glycosides and tannins in IHPs were higher than herbaceous peony and tree peony, exceeding 44.76 mg/g DW and 11.50 mg/g DW, respectively. Three IHPs, 'Prairie Charm', 'Garden Treasure', and 'Yellow Emperor', with more types and a higher content of medicinal compounds, were screened out by cluster analysis. These IHPs have considerable potential for the development of medicinal resources.
牡丹品种是著名的观赏植物，其中一些也是中国传统的药用资源。牡丹属间杂种（IHPs）是由芍药（牡丹 lactiflora）和牡丹（牡丹 suffruticosa 或 lutea 杂种牡丹）杂交形成的。IHPs 的表型特征与芍药相似，其根系庞大而旺盛。然而，它们的药用价值尚未得到报道。在这项研究中，我们通过高效液相色谱四极杆飞行时间质谱（HPLC-Q-TOF-MS/MS）分析了 8 个 IHP 样本的根。共鉴定出 18 种化合物，包括酚类、芍药苷、单萜糖苷和鞣质。IHPs 中单萜糖苷和鞣质的含量高于芍药和牡丹，分别超过 44.76 mg/g DW 和 11.50 mg/g DW。通过聚类分析，筛选出三种具有更多类型和更高药用成分含量的 IHP，即'Prairie Charm'、'Garden Treasure'和'Yellow Emperor'。这些 IHP 具有开发药用资源的巨大潜力。
