Anatomical Structures of Achyranthes bidentata BL. Roots and Its Relationship to the Accumulation of Triterpenoid Saponins Molecular clone and sequence analysis of hemoglobin gene in Ceratopteris thalictroides Anatomical observation of anomalous secondary structure in root of Rorippa islandica Modeling the Cysteine Rich Domain of Plant Metallothionein-like Protein Bioinformatics analysis of copalyl diphosphate synthase in Salviae Miltiorrhizae Radix et Rhizoma Development Anatomy of Achyranthes bidentata Roots