摘要
目的 通过对臭冷杉的叶和小枝进行组织学研究 ,为正确用药提供鉴定依据。方法 扫描电镜观察 Jeffrey液处理后的叶表皮内表面及干燥小枝木材 ;光镜观察幼茎的横切、叶的横切及小枝木材的徒手切。结果 发现臭冷杉叶气孔下陷 ,副卫细胞 4个。下皮层细胞只有上、下表皮的中段有一层分布。内皮层无凯氏加厚 ;叶肉叶树脂道 2个 ,中生 ;维管束 2。木材中无树脂道 ;木射线完全由薄壁细胞组成 ,细胞端壁和水平壁具节状加厚 ;交叉场纹孔松木型。结论 以上结果可作为臭冷杉药材的鉴别依据。
Object Identification basis for the proper employment of Abies nephrolepis (Trautv ) Maxim were provided by the histological anatomy study of the leaf and the young stem of A nephrolepis Methods The intra surface of the leaves' epidermis and the dried wood of the twig were observed by the scanning electron microscope; the cross sections of the leaf and the young stem and cross radial tangent sections of the wood were observed by the optical microscope Results The stoma was sunk under the four subsidiary cells which surround around the stoma The hypodermis was only distributed under the middle parts of the uppper and lower epidermis Casparian thickening was not found on the endodermis There were two mesial resin canals and two bundles, and there were not normal resin canals in the wood The xylem ray was completely composed with parenchyma cells, whose end walls and level walls have nodal thickening The cross field pitting was pinoid Conclusion The above results can be used as basis for the identification of the herbal medicine A nephrolepis
出处
《中草药》
CAS
CSCD
北大核心
2003年第1期73-76,共4页
Chinese Traditional and Herbal Drugs
关键词
臭冷杉
扫描电镜观察
组织学研究
鉴定
Abies nephrolepis (Trautv ) Maxim
scanning electron microscope observation
histological anatomy
