摘要
目的:寻找鉴别黄芩的生长年限、区别野生及栽培黄芩的依据,为黄芩质量控制提供参考依据。方法:以性状组织学研究方法,对5个省(区)12个产地45个编号共87份不同生长年限的栽培和野生黄芩标本和7个省(区)共22份黄芩商品药材进行研究。结果:发现野生黄芩与一、二年生栽培品(商品多见)横切面观的导管排列方式不同。野生黄芩导管为切向排列;栽培一年生品为径向排列,二年生为团状排列。首次发现黄芩根中存在年轮结构。根据主根形状、色泽、栓皮、残留茎基和枯心等性状特征,以及导管的排列方式、木质部木栓细胞环、年轮等组织学特征可区别野生和栽培黄芩并判断其生长年限。结论:建立了不同生长年限的野生和栽培黄芩的性状组织学鉴别方法,并首次发现黄芩组织中可观察到年轮结构。
Objective： To identify Radix Scutellariae （Huangqin） of different growth years, to distinguish whether it＇s wild or cultivated and to provide useful information for the quality control of Huangqin crude drug. Method： By using morphological and histological methods, we studied 87 individuals of 45 specimens from 12 habitats of 5 provinces of China, which grew wild or were cultivated in different growing years. Moreover, 22 commercial samples of Hoangqin from 7 provinces were also investigated. Result： The identification was performed base on morphological and histological characteristics, such as, the shape, color, cork, remaining stems, decayed central xylem, and vessels arrangement, xylem cork ring, growth rings, etc. Conclusion： We established an identification method for distinguishing Huangqin wild or cultivated in different growing years. Furthermore, the structure of annual rings in the transection of Radix Seutellariae has been discovered for the first time.
出处
《中国中药杂志》
CAS
CSCD
北大核心
2005年第22期1728-1735,共8页
China Journal of Chinese Materia Medica
关键词
黄芩
性状鉴定
显微鉴定
生长年限
年轮
Scutellaria baicalensis
macroscopical identification
microscopical identification
growth years
annual ring
