STUDIES ON THE SAPONINS FROM PSAMMOSILENE TUNICOIDES A NEW TRITERPENOID OF PSAMMOSILENE TUNICOIDES STUDY ON THE PHARMACOL0GICAL ACTIVITY OF TQTAL SAP0NINS FROM PSAMM0SILENE TUNIC0IDES Cyclic Dipeptides from the Root of Psammos ilene tunicoides Optimization of extraction procedure of psammosilene tunicoides by uniform design with pharmacodynamic index Three Cyclic Dipeptides from the Root of Psammosilene tunicoides Study on quality standard of Psammosilene tunicoides based on absorbed active components in rat plasma Chemical constituents from root of Psammosilene tunicoides A New Tritepenoid saponin from Psammosilene tunicoides THE TRITERPENOID COMPOUNDS FR0M PSAMMOSILENE TUNICOIDES The Chromosome Number of Psammosilene tunicoides Endemic to China Genetic diversity analysis of germplasm resources of Psammosilene tunicoides Cloning, prokaryotic expression, and functional identification of β-amyrin synthase cDNA of Psammosilene tunicoides Two New Triterpenoid Saponins from Psammosilene tunicoides Establishment of induction and culture system for hairy roots of Psammosilene tunicoides Chemical constituents from roots of Psammosilene tunicoides Chemical constituents of Psammosilene tunicoides and bacteriostatic activity