Investigation On The Chemical Constituents And Bioactivity Of The Pedicularis Tricolor

With the rapidly development of economy, the people's requirement on flowers is increasing for many years. Inorder to cultivate long-flowering, colourful, bizarre, and gaihly flowers, horticulturists had paid their a mountain of hard works on it.Furthermore, many flowers not only have the value of view and admire, but also can be used as Chinese traditional medicine to cure diseases.Pedicularis L., as one of the largest genera of angiosperm, comprises about 332-400 species in China. Some species have been used as herbs to treat diseases for a long time. Many compounds, such as iridoid glycosides, phenylpropanoids, flavonoids, hydroxybenzene acid and so on, have been isolated from Pedicularis, and some of which show the biological activities of antioxidation and antitumour.Pedicularis tricolor H.-M. is a specific specie herbaceous biennial in china, and belongs to Scrophulariceae Pedicularis. P. tricolor rised from alp and lea, and boskage in northwestward of Yunnan with altitude at 3 400~3 700 m. It has the characters of twisted prominency labellum, partite feather-like fasciated leaves, and exquisite model attract many scholars wantting to study it. In 1990's, P. tricolor was naturalized in a alp-flowers test base by Kunming Institute of Botany, Chinese Academy of Sciences, sponsored by Japan Santoli Sunberz Co.. But it's phytochemical investigation has not been performed until now. In order to screen out the active natural products, in this paper, we report our studies on the chemical constituents from the whole plants of P. tricolor, which will play a significant role in the exploiture of new medicine and enlarging medicine resource.