Study on the Difference in Shapes,Properties and the Microscopic Frameworks of Wild and Cultivated Radix Puerariae

Objective To indicate the difference shapes,properties and the microscopic frameworks of wild and cultivated Radix Puerariae.Methods Comparing the shapes and properties,measuring and comparing the microscopic characters of transverse section and the powder and disintegrated tissue of roots.Results For the shapes and properties,wild Radix Puerariae has long-column shape with the diameter of 1～6 cm and deep brown fibre section.Cultivated Radix Puerariae has long-spindle shape with diameter of 2～12 cm and light brown powder section.For the microscopic frameworks,the root transverse section of wild Radix Pueraria has much crystal fiber bundle with multilayer,the vessel of xylem is crassitude with dense ranks and a few starch grain,the root transverse section of the cultivated has a few crystal fiber bundle and a few groups of secretory tube,the vessel of xylem has radial ranks with much starch grain.Conclusion Wild Radix Puerariae and cultivated Radix Puerariae have differences shapes and properties and the differences of microscopic frameworks.The main characteristics of them are the different shapes and properties and the different size of xylem vessel and different number of groups of secretory tube and starch grain.