国产姜黄属药用植物叶表皮显微图像模式识别

目的 :为国产姜黄属药用植物的分类与鉴定提供新的依据。方法 :应用体视学方法和计算机图像定量分析系统 ,对国产姜黄属药用植物叶表皮显微特征进行了立体定量分析。结果 :姜黄属植物不同种类不同产地的叶表皮的细胞密度、大小和形状存在不同程度的差异。上表皮细胞平均周长、下表皮细胞平均截面积和平均圆形度、上表皮气孔面数密度和平均最大直径、下表皮气孔面数密度和平均最大直径、上表皮副卫细胞平均最大直径、下表皮副卫细胞平均周长和平均最大直径、上表皮被毛情况、下表皮被毛情况等可作为鉴别的主要体视形态学特征参数。结论 :国产姜黄属 11种共 21份材料系统整理为 6种、1种复合体和 2栽培变种 ;体视学与图像分析技术用于显微鉴定 ,科学可行 ,尤适于近缘品种和易混淆品种的分类与鉴定。

Pattern Recognition of Stereoscopic Features of the Leaves Epide rmis of Medicinal Curcuma Plants in China by Image Analysis

Objective:To provide new ways for classifying and ident ifying medicinal curcuma plants.Method: Based on classical taxonomy, the microscopic features of the epidermis of Curcuma plants in China were scored quantitatively by stereology and image anal ysis. Result:It showed that there were a lot of differences in density, size and shape of the epidermic cells among the medicinal Curcuma plants in China; that the a vera ge perimeter of the upper epidermic cells, average sectional area of the lower e pidermis , stoma density and trichoma distribution of the upper and lower epider mis ,etc. could be considered to be the main evidences for the microscopic ident ification of leaves of Curcuma. The 21 mat eria ls which belong to 11 species of Curcuma in China were systematized into 6 s pecies, 1 species complex, 2 cultivated varieties.Conclusion: It can be concluded that stereology, an d image analysis are advanced and feasible in pharmacognosy and taxonomy especi ally in the authentication of the relative and easily confused species.