Temporal Variation In Content Of Chemistrial Material In Desert Ephemeroid Plant Eremurus Anisopterus And Eremurus Inderiensis

Eremurus anisopterus(Kar. et Kir.)Regel and Eremurus inderiensis(M. Bieb.)Regel belong to Eremurus, Liliaceae, which were typically ephemeroid plants in desert. They only distributed at the desert of northern part of Xinjiang in china, where the altitude were 400 to 500 meter. The paper reviewed the research findings of Eremurus , especially on the sugars and anthraquinones. Temporal variation in content of sugars (soluble sugar, reducing sugar, sucrose) and anthraquinones (aloe-emodin, emodin, rhein and chrysophanol) were also studied in this paper. The life story were distributed by four period, which were seedling period, vegetative growth period, initial flowering period and profuse flowering period and fruit period. The content of soluble sugar was detected by phenol sulfuric acid method. The content of reducing sugar was detected by DNS method. The content of total phenolics was detected by Fulin-Ciocaltell method. The content of anthraquinones was detected by HPLC method. The volatile oil was detected by GC-MS Method.Results as follows:First, the content of soluble sugar and reducing sugar were rised in life history in leaves of E. anisopterus and E. inderiensis .And the content was reached to highest in profuse flowering period, but the content was a little lower in fruit period compared to profuse flowering period.Second, the change of the content of soluble sugar and reducing sugar were identically same in life history in roots of E. anisopterus and E. inderiensis. In roots, the content of sugar in vegetative growth period were lower compare to seedling period, and reach to highest in initial flowering period.Third, the change of the content of total phenolics were identically same in life history in leaves of E. anisopterus and E. inderiensis. And the content reached to the lowest in profuse flowering period, which the content were 17.46 mg/g and 19.42 mg/g respectively. The content of total phenolics was in upper part of leaf was significantly higher than that in middle part, and that in lower part was the lowest one. Among different organs, the content of total phenolics in leaf was the highest.Fouth, the change of the content of total phenolics were not identically same in life history in roots of E. anisopterus and E. inderiensis. But the content of total phenolics was reached to the lowest in profuse flowering period.Fifth, the content of Aloe-emodin were higher than other three anthraquinones in leaves of E. anisopterus and E. inderiensis. And the content of four anthraquinones were higher in seedling period, vegetative growth period and initial flowering period, and reached to the lowest in profuse flowering period in leaves of E. anisopterus and E. inderiensis. The content of four anthraquinones in upper part of a leaf was significantly higher than that in middle part or lower part of a leaf on the both plants.Sixth, the content of Aloe-emodin were higher than other three anthraquinones in roots of E. anisopterus and E. inderiensis and the content reached to the lowest at the profuse flowering period. The content of rhein were from 0.15 mg/g to 0.5 mg/g in roots of E. anisopterus and E. inderiensis and reached to the lowest at profuse flowering period , respectively 0.215 mg/g and 0.0799 mg/g.Seventh, there were many compounds detected in the volatile oil in seed or flower of E. anisopterus and E. inderiensis, such as dodecanoyl and linoleic acid, which can be useful for people's healthy. And this provide a good view for the use of two volatile oil.Conclusion: Temporal variation in content of sugar, total phenolics, anthraquinones in E. anisopterus and E. inderiensis were just the result of plant adapted to the desert environment.