目的 蒽醌類物質(zhì)是蘆薈屬植物的重要藥用成分,主要存在于葉內(nèi),研究葉的結(jié)構(gòu)與蒽醌類物質(zhì)關(guān)系有重要意義。方法 應(yīng)用植物解剖學(xué)、組織化學(xué)和植物化學(xué)方法研究 11種蘆薈屬植物葉。結(jié)果 蘆薈屬植物葉的基本結(jié)構(gòu)類似,維管束韌皮部內(nèi)具大型薄壁細(xì)胞為該屬的結(jié)構(gòu)特征,是蒽醌類物質(zhì)的主要貯存場所 ;不同種植物葉內(nèi)及同種植物葉的不同部分中蒽醌類物質(zhì)的含量不同與維管束分布密度、大型薄壁細(xì)胞所占比率及同化組織厚度成正相關(guān)。結(jié)論 研究結(jié)果可為選育蘆薈良種及合理采收提供依據(jù)

Object Anthraquinones present in the leaves of Aloe L. are the main active principle for medical purposes. Therefore, to study their relationship is of great interest to the medical profession. Methods Leaves of 11 species of Aloe L. were studied by phytotomy, histochemistry and phytochemistry. Results The structures of the aloe leaves were basically similar as characterized by the presence of the large, well developed parenchymatous cells in the phloem pole where anthraquinones were stored. Some positive correlations exist between the contents of anthroquinones in the leaves of different species and different parts of leaves of the same species, and some phytotomic factors including the density of vascular bundles, the ratio of large parenchymatous cells in phloem and the thickness of the chlorenchyma. Conclusion Results of the study may provide references during purchasing and for the selection and breeding of new improved species.

陜西省教委專項基金資助課題(編號:00JK139)