通过液相质谱联用技术对杭白菊及其F1代优选单株的花朵（头状花序）进行营养成分比较分析。结果表明，杭白菊、杭F1-17和杭F1-22中分别检测到502、505和496个代谢物，三者共有代谢物309个。结合差异倍数值FC≥1.5和≤0.8筛选杭白菊vs杭F1-17和vs杭F1-22的差异代谢物中分别有135和206种上调、144和154种下调，其中，杭F1-17和杭F1-22的黄酮类代谢物山奈酚（FC为16.77和18.69）、木犀草素（FC为7.35和3.74）、异鼠李素（FC为3.21和6.38）、人体必须氨基酸之一的甲硫氨酸（FC为103.22和67.71）、主要有机酸苹果酸（FC为306.73和2.76）和柠檬酸（FC为4.82和12.16）、菊花主要保健成分绿原酸（FC为1.53和3.11）等物质的相对含量均明显上调。此外，与母本杭白菊相比，杭F1-17特有熊果酸、维生素A和K3等成分，杭F1-22特有鼠尾草酚、杨梅素、维生素B1等成分。以上研究表明杭白菊F1代优选单株中的主要营养成分相对含量明显较母本高，同时在F1代单株中还检测到特有营养成分，且杭F1-17头状花序的托桂特性也为开发观食两用的优良茶用菊新品种提供了参考。

The nutritional components of flowers (capitulums) of Hangzhou white chrysanthemum and its F1 hybrid superior lines were analyzed using liquid chromatography-mass spectrometry (LC-MS) technology. The results showed that 502, 505, and 496 metabolites were detected in Hangzhou white chrysanthemum, Hang F1-17, and Hang F1-22, respectively. A total of 309 common metabolites were found in the three chrysanthemums. Compared to Hangzhou white chrysanthemum, according to the fold change, namely FC≥1.5 and ≤0.8, which indicated significant up-regulation and down-regulation, there were 135 and 206 significantly up-regulated metabolites detected in Hangzhou F1-17 and Hangzhou F1-22 respectively, and there were 144 and 154 significantly down-regulated metabolites, respectively. Among the significantly changed metabolites of Hang F1-17 and Hang F1-22, the relative contents of three flavonoid metabolites of kaempferol (FC of 16.77 and 18.69), luteolin (FC of 7.35 and 3.74), isorhamnetin (FC of 3.21 and 6.38); methionine (FC of 103.22 and 67.71), one of the essential amino acids for the human body; the main organic acids of malic acid (FC of 306.73 and 2.76) and citric acid (FC of 4.82 and 12.16); and chlorogenic acid (FC of 1.53 and 3.11), the main health component in chrysanthemum, have all been significantly up-regulated. Additionally, when compared to the female parent Hangzhou white chrysanthemum, components such as ursolic acid, vitamin A, and K3 were only detected in Hang F1-17, while components such as carnosol, myricetin, and vitamin B1 were only detected in Hang F1-22. These results indicate that relative contents of some main nutritional components in the F1 hybrids are obviously higher than that in the female parent, and some specific nutritional components are only detected in the F1 hybrids. Meanwhile, the anemone-typed capitulum of Hang F1-17 also provide references for the development of excellent tea chrysanthemum cultivars for both ornamental and food uses in the future.

贵州省科技计划项目（黔科合支撑[2021]一般225）；云浮市2022年中医药（南药）产业人才项目