Comparitive Study on Characters of Two Divergence Types of the Clone Population Leymus chinensis in the Songnen Plain of China Plant Regeneration from Protoplasts of Medicago lupulina Analysis of Transgenic Tomatoes with Expression of Antisense Polygalacturonase Gene Pollen-Mesophyll Protoplast Fusion and Hybrid Plant Regeneration in Nicotiana In Vitro Heat Stability of Plasma Membrane Vesicles and Tonoplast Membrane Vesicles Isolated From the Hypocotyle of Phaseolus vulgaris Studies on Galactomannan Accumulation in the Endosperm of Sophora japonica During Seed Development Studies on Triterpenoids of Astragalus floridus Relationship Between Male Fertility and Endogenous Phytohormones in Photoperiod-Sensitive Genic Male-Sterile Rice Problems in the Use of RAPD to the Study of Genetic Diversity and Systematics Localization of Heat Shock Protein on Cell Membranes of Phaseolus vulgaris Distorted Segregations of RFLP Markers and Their Distribution on Chromosomes in an indica/japonica F2 Population of Rice (Oryza sativa L.) A Preliminary Study on the Use of RFLP Analysis of the PCR Amplified Products in the ystematic Investigation of the Subtribe Astragalinae (Fabaceae) Induction and Differentiation of Callus from Female Gametohyte Explants of Pinus bungeana Zucc. and P. tabulaeformis Carr. Study on Organelle DNA Within the Generative Cell and Sperm Cells in Pharbitis Localization of Heat Shock Protein of Low Molecular Weight by Electromicroscopic Immunogold-Labelling Molecular Cloning of the cDNA Encoding an Antifungal Protein in Gastrodia elata Bl. Enhancement of Plant Regeneration Rate of Brassica parachinensis Cultured in Vitro A Monoclonal Antibody Recognizing Nonderivative 13-Hydroxy Gibberellins and Their Glucosides Complemental Effect of Osmotic Stabilizers and Their Roles in Degradation Cell Walls of Blue-Green Algae Origin of Megagametophytes with Supernumerary Egg Cells Occurring in Oryza sativa Water Relations of Tomato Seeds During Imbibition and Osmotic Priming The Characteristics of Reflection Spectrum in Subaerial Blue-Green Algae in Ding Hu Mo Ore-field, Guangdong Province The Effect of Manganese on the Reconstitution of Partial Metallocluster-deficient Nitrogenase Molybdenum-Iron Protein Study on the conditions of Cell Transformation in Astragalus sinicus Accumulation of Phosphorus and Mineralizational Significance of Algal Cells Cytoembryological Studies on Polyembryonic Line SB-1 of Oryza sativa: Apogamy of Synergids Cloning of Tomato Polygalacturonase cDNA and Transforming Plants with Antisense RNA Cytological Observations on Nodules,Nodule-Like Structures and Crown Galls on the Roots of Phaseolus vulgaris Isolation and Partial Characterization of a Protease from Agave sisalana Cytoplasmic Ultrastructural Changes During Microsporogenesis of Gossypium hirsutum:With Emphasis on Embryological Studies in Rheum palmatum L. A Study on the Constituents of Stems and Leaves of Astragalus membranaceus Detection and Immunofiuorescence Localization of Antifungal Protein of Gastrodiaelata A Cytochenfical Study of Acid Phosphatas in the Mycorrhizal Cells of Gastrodia elata Seedling The Chemical Constituents of Astraglus Adsurgens Scanning Electron Microscopic Observation on Morphogenesis in the Ovule Culture of Citrus Study on High-Frequeney Plant Regeneration from Monocell Suspension ,Cultures of Astragalus grubovii Ultrastructure of Protein Bodies and Plastids in Cotyledon of Nelumbo nucifera Gaertn.at Seed Germination Studies on the Characterization of Root Morphology of White Clover Infected by Transconjugant of Rhizobium leguminosarum Preliminary study on the Blue-Green Algae Community of Arid Soil in Qaidam Basin Genetic Transformation of Legume Forage Cicer Milkvetch The Relation of Storage Protein to Vigor and Its Mobilization Pattern in Germinating Peanut Seeds A New Algal Fossil from Early Cambrian in Qingzhen County, Guizhou Province, China Studies on the Chemical Constituents of the Spores from Ganoderma lucidum Chemical Studies on the Essential Oils of Foeniculum vulgare Microsporogenesis, Megasporogenesis and the Formation of Male and Female Gametophyte in Coix lacryma-jobi L. The Secondary Xylem Anatomy of 6 Desert Plants of Caragana Structural Determination of Fatty Acid Components in the Seed Oils of Five Species of Euphorbiaceae Chemical Constituents of the Seeds of Sabina vulgaris Antoine The Structures of Two Flavonoid Glycoside from Oxytropis ochrocephala A New Stromatolitic Mat Builder Discovered from Late Precambrian in Northern China Ultrastructural Observations on Parthenogenesis and Antipodal Apogamy of Allium tuberosum Roxb Study on Genetic Behaviour of B Chromosomes at Meiosis in Agropyron Gaertn Megasporogenesis, Microsporogenesis and Development of Female and Male Gametophyte in Siraitia grovenorii Studies on the Constltuents of the Flavonoids from the Leaves of Typha angustifolia L. The Chemical Constituents of Elsholtzia ciliata (Thund.) Hyland The Role of Polygalacturonase (PG) in Tomato Fruit Ripening and Effects of Divalent Metal Ions and Ethylene on PG Activity Studies on Stem Tissue Culture and Organgenesis of Aloe vera Studies on the Active Changes of GA3 and Cytokinins During Development and Ripening in Seabuckthorn Fruits Karyotype Analyses in Cupressus gigantea Fluorescence Microscopic Observations on Actin Filament Distribution in Corn Pollen and Gladiolus Pollen Protoplasts Morphogenesis in in vitro Culture of Terminal Floral Apex of Banana The Ecological Wood Anatomy of the Lilac ( Syringa oblata var.giraldii Rehd.) in Taibai Mountain Cytochemieal Observation on Garlic Clove before and after Temperature-Modulated Break of Dormancy Studies on the Chemical Constituents of Limonium aureum (L.) Hill The Chemical Constituents of Antitumor from Sabina vulgaris Ant A Preliminary Study of Microalgae in the Intertidal Zones of the Deception Island,Antarctica Studies on the Silver-Staining of Plant Chromosomes Ultrastructural Studies of Barley Mesophyll Cella lnfected with Barley Yellow Mosaic Viruses Studies on Substitutions Among Mn, Ca and Mg Ions and Oxygen Evolution of Anabaena Variabilis Studies on the Structures of Two New Triterpene Saponins C and D from Polygala japoni-ca Houtt Cyto-Histological Observations on Organogenesis of Rubus laciniatus Culture In Vitro Scanning Electronmicroscopic Observations on Development and Structure of Pericarp of Nelumbo nucifera Gaertn Isolation and Identification of Flavonoid Glycosides from the leaf of Apocynum hendersonii Hook. f The Isolation and Identification of Hydyotanthraquinone Investigation on the Development of Male Cametophyte in Anemarrhena Asphodeloides Chemical Constituents of the Essential Oil from the Peel of Citrus bergamia Risso Studies on Factors in Cryopreservation of Sugarcane Calluses A Study on Manganese Content in Soils and Leaves of Rubber Trees in Rubber Plantation Areas of China Somatic Embryogenesis from Sugarcane Protoplasts