沙生异翅独尾草不同器官中蒽醌含量的消长规律

目的对沙生类短命植物异翅独尾草在苗期、营养生长期、初花期、盛花期、果期的各器官中大黄素、大黄酚、大黄酸、芦荟大黄素含量变化进行研究。方法高效液相色谱法。结果叶中4种蒽醌类物质在苗期、营养生长期、初花期含量较高,盛花期最低,且叶上部位明显高于叶中和叶下部位。根中苗期4种蒽醌类物质含量都较低,营养生长期芦荟大黄素和大黄素含量较高,初花期和盛花期大黄素含量较高,果期芦荟大黄素和大黄酚含量较高。花中芦荟大黄素、大黄素、大黄酚含量要比花葶高,花葶中大黄酸含量比花高。花葶中4种蒽醌类物质在盛花期含量高于初花期和果期时的含量。同时期各器官蒽醌总量相比:叶>根>花>花葶。结论若选取异翅独尾草作为蒽醌类药材利用,建议最佳采集部位是初花期的叶先端部位。

Temporal Variation in Contents of Four Anthraquinones in Desert Ephemeroid Plant Eremurus anisopterus

Objective To detect the temporal variation of contents of aloe-emodin, emodin, rhein and chrysophanol in desert ephemeroid plant Eremurus anisopterus. Methods Anthraquinones were detected by HPLC. Results The contents of four anthraquinones in leaves in seedling period, vegetative growth period and initial flowering period were higher than those in other periods, and in profuse flowering period the content decreased to the lowest. The contents of the four anthraquinones in the upper parts of leaves were higher than those in the middle and lower parts in initial flowering period. In roots, the contents of the four anthraquinones in seedling period were lower than those in other periods, the contents of aloe-emodin and emodin in vegetative growth period were higher than those in other periods, and in flowering periods the content of emodin were higher, and in fruits period the contents of aloe-emodin and chrysophanol was higher. In flower, the contents of aloe-emodin, chrysophanol and emodin was higher than those in scape. But the content of rhein in scape was higher than that in flower. The content of the four anthraquinones in profuse flowering period were higher than those in initial flowering and fruit period in scape. Among organs in initial flowering period, the contents of total anthraquinones in leaves were higher than those in roots, and those in roots were higher than those in flower, those in flower were higher than those in scape. Conclusion The best collection part of Eremurus anisopterus as medicinal materials is in initial flowering period of the upper parts of leaves.