不同种源多穗柯主要生物活性成分与矿质元素含量变异分析

[目的]阐明多穗柯主要药用活性成分与矿质元素的种源遗传变异规律.[方法]对设置在江西省分宜县多穗柯全分布区的5个种源试验林植株叶部根皮苷、三叶苷、总黄酮、有机碳、氮、磷和钾元素含量进行测定、分析.[结果]不同种源多穗柯叶部根皮苷、三叶苷、总黄酮、有机碳、全氮、全磷含量差异均存在极显著差异(P<0.01).不同种源根皮苷...

Variation analysis of main bioactive components and mineral element contents of Lithocarpus ploystachyus from different provenances

【Objective】To clarify the genetic variation of the main bioactive active components and mineral elements in Lithocarpus ploystachyus.【Method】The contents of phlorizin, trefoil glycoside, total flavonoids, organic carbon, nitrogen, phosphorus and potassium in the leaves of five provenance test forests in the whole distribution area of Lithocarpus ploystachyus in Fenyi county, Jiangxi province were determined and analyzed.【Result】There were significant differences in the contents of phloridin, trefoil glycoside, total flavonoids, organic carbon, total nitrogen and total phosphorus(P < 0.01). The variation range of content of phloridzin in different provenances is 16.03-64.35 mg·g-1, the variation range of trefoil glycoside content is 4.76-29.97 mg·g-1, and the variation range of phloridzin content is 61.59-81.05 mg·g-1, among which Chongqing Beibei is the provenance with high phloridzin, organic carbon, total phosphorus and total nitrogen content. Compared with other provenances, the content of phloridin is the highest, the content of trefoil glycoside Miyi of Sichuan is the highest and the content of total flavonoids in Fenyi of Jiangxi is the highest.The content of Lithocarpus ploystachyus decreases significantly with the increase of sunshine hours(P < 0.05).The results showed that the content of trefoil glycoside decreased significantly with the increase of frost free period, the content of total flavonoids increased significantly with the increase of longitude, and the content of total nitrogen increased significantly with the increase of precipitation;the content of phloridzin was positively correlated with the content of total nitrogen, and the content of organic carbon was negatively correlated with the content of total potassium;cluster analysis showed that five provenances could be divided into two groups, high phloridzin, high total flavonoids, low triglyceride group and low phloridzin, low total flavonoids;and high triglyceride group.【Conclusion】The contents of phlorizin, trefoil glycoside, total flavonoids and main mineral elements in Lithocarpus ploystachyus have obvious provenance variation. Lithocarpus ploystachyus from Beibei of Chongqing, Miyi of Sichuan and Fenyi of Jiangxi belong to excellent provenances.