Phenolic Constituents from the Fruits of Areca catechu and Their Anti-bacterial Activities Study the Effect of Tachyplesin I on Proteus vulgaris Study of molecular mechanism of Rheum offcinale against Yersinia pestis Anti-bacteria activity of Puraboeo rutescens and Lysionotus pauciflorus Screening of Anti-bacteria Activity of Extracts of Gaultheria leucocarpa var. yunnanensis Studies on the Diterpenes from the Leaves of Taxodium ascendens(Ⅰ) Determination of glycyrrhizic acid in different decoctions of Sanaotang by HPLC and comparison with antifugal effects in vitro