基于代谢组学的糖链植物疫苗浸种处理对北柴胡化学成分的影响
赵向东 , 张豆豆 , 吕鼎豪 , 李香串 , 张蕊
山西医科大学学报 ›› 2026, Vol. 57 ›› Issue (6) : 688 -696.
基于代谢组学的糖链植物疫苗浸种处理对北柴胡化学成分的影响
Effects of glycan plant vaccine seed soaking on Bupleurum chinense DC. based on metabolomics
目的 探讨糖链植物疫苗浸种处理对北柴胡化学成分的影响。 方法 将北柴胡种子分为浸种组和未浸种组,浸种组以糖链植物疫苗进行浸种处理,未浸种组不做处理。两组样品采集后,采用基于超高效液相色谱串联四极杆飞行时间质谱(UHPLC-Q-TOF-MS)的非靶向代谢组学技术分析浸种组与未浸种组北柴胡的代谢物差异;将采集的数据预处理后导入SIMCA软件进行主成分分析,初步观察两组样本的整体代谢分布趋势。采用t检验(P0.05)结合倍数变化(FC)值(如FC1.2或FC0.8)作为筛选标准筛选两组的差异代谢物;并通过MS-DIAL软件、在线数据库、二级碎片裂解规律等对差异化合物进行结构鉴定。 结果 主成分分析结果显示,未浸种组与浸种组北柴胡在得分图中呈现明显分离趋势,糖链植物疫苗浸种处理显著改变了北柴胡的整体化学成分组成。在浸种处理后,共有37种化学成分的积累水平发生显著改变:其中19种成分的含量显著上调,18种成分的含量则呈现下调趋势。进一步的差异化合物表征表明,浸种处理主要促进了黄酮类和皂苷类成分的积累。 结论 糖链植物疫苗浸种处理可显著改变北柴胡的化学成分,为糖链植物疫苗在柴胡生态种植中的应用提供了依据。
Objective To explore the effect of seed soaking treatment with glycan plant vaccine on the chemical constituents of Bupleurum chinense DC. Methods Seeds of Bupleurum chinense DC. were divided into two groups: soaking group(treated with glycan plant vaccine) and non-soaking group(no treatment). After sample collection, an untargeted metabolomics approach based on ultra-high performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry(UHPLC-Q-TOF-MS) was employed to compare the metabolite differences between the two groups. After preprocessing, the acquired data were imported into SIMCA software for principal component analysis(PCA) to preliminarily evaluate the overall metabolic distribution trends in the two groups. Differential metabolites were screened using a t-test(P0.05) combined with fold change(FC1.2 or FC0.8). Structural identification of the diffe⁃rential compounds was then performed using MS-DIAL, online databases, and MS/MS fragmentation patterns. Results PCA results showed a clear separation in the score plot between non-soaking group and seed soaking group, indicating that seed soaking treatment with glycan plant vaccine significantly altered the overall chemical composition of Bupleurum chinense DC. Seed soaking treatment markedly changed the accumulation levels of 37 chemical constituents, among which 19 constituents were significantly up-regulated, while 18 constituents were down-regulated. Further characterization of the differential compounds revealed that seed soaking treatment predominantly promoted the accumulation of flavonoids and saponins. Conclusion Seed soaking treatment with glycan plant vaccine can significantly modify the chemical composition of Bupleurum chinense DC., providing a rationale for the application of glycan plant vaccine in its ecological cultivation.
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