长叶榧叶片次生代谢产物含量分析

对分布在浙江省境内的桐庐、松阳、浦江、仙居等4个样地的长叶榧(Torreya jackii)1年生叶片中的鞣质、生物碱、黄酮、游离蒽醌、绿原酸、皂甙、总酚等7种次生代谢产物的含量进行测定分析。结果显示,不同样地长叶榧1年生叶片7种次生代谢产物总量以松阳的最高,仙居最低,其顺序为松阳>浦江>桐庐>仙居。不同样地长叶榧叶片的7种次生代谢产物的含量差异较大,总鞣质、总生物碱、总皂甙、总酚的含量以松阳的最高,总黄酮、游离蒽醌的含量以仙居的最高,总绿原酸的含量以浦江的最高。不同样地7种次生代谢产物含量的相关性不高。系统聚类分析显示,桐庐和浦江样地的地理位置最近,它们先聚在一起,再与其他样地相聚。

An Analysis on the Secondary Metabolite Contents in the Leaves of Torreya jackii

The contents of seven secondary metabolites,such as tannins,flavonoids, alkaloids,anthraquinones,chlorogenic acid,saponins,phenols,in the leaves of Torreya jackii collected from different areas(Tonglu,Songyang,Pujiang and Xianju) in Zhejiang Province was determined and analyzed.The results showed that the total contents of seven secondary metabolites in the leaves from Songyang were the highest,and those in the leaves from Xianju was the lowest.The contents decreased in the order of Songyang,Pujiang,Tonglu and Xianju.Differences existed in the contents of the seven secondary metabolites from different ereas.The contents of tannins, alkaloids and saponins in the leaves from Songyang were the highest,while the contents of flavonoids and anthraquinones in the leaves from Xianju were the highest and the content of chlorogenic acid in the leaves from Pujiang was the highest.There was little correlation among the content of seven secondary metabolites from different areas.Systematic cluster analysis showed that Tonglu and Pujiang with the lowest geographical distance were clustered together first,then the others clustered.