中药丹参及其近缘种植物根的显微鉴定

Microscopic identification of roots of Chinese herb Salvia miltiorrhiza and its relative species

目的:为正品丹参药材的鉴定和鼠尾草属植物分类提供解剖学依据。方法:采用石蜡切片法对14份研究材料制作根的横切片,应用光学显微镜观察其显微结构。结果:研究材料在根部显微结构上存在许多共性,但在落皮层的有无、木栓层厚度及木栓化程度、木质部导管多少、孔径大小及排列方式上存有不同程度的差异。结论:根部显微结构特征可以作为鉴别丹参产地及种植特性的指标,也可以作为鼠尾草属植物分类的重要依据。

Objective：To provide anatomical evidences for the identification of 5.miltiorrhiza and classification of Salvia.Method：The cross sections of 14 materials were obtained by using paraffin sectioning and the optical microscope was used to characterize the structure.Results：There is much commonness in the materials studied on the microscopic structure of roots.But the differences exist in rhytidome,cork layer thickness and suberification degree, number and size of the canal in xylem and also the tactic mode.Conclusion：The microscopic structure of roots could be as the anatomical evidences for the identification of the S.miltiorrhiza form different places and growth characteristic,and also may be considered to be the main features for the classification of Salvia.