RT-PCR Amplification and Analysis of Citrus Excortis Viroid Microdissection and Recovery of 1R Chromosome in Rye ( Secale cereale ) Fossil Woods from Late Cretaceous of Heilongjiang Province, Northeast China, and Their Palaeoenviromental Implications Monitoring Inter-annual Variation of Evapotranspiration with Meteorological Satellite Remote Sensing Method in China Monsoon Transect Palynological Evidence for Jurassic Petroleum Source of Qaidam Basin Study on ClimateVegetation Classification for Global Change in China Relationship Between Fe2+-Induced Ethylene Production from Husk and Growth of Fe2+-Stimulated Rice Seedling Existance of a Bovine Sperm Antibody Recognizable Antigen-Epitope on the Plasma Surface of Lily Sperm Cells Study on Surface Pollen in Middle Inner Mongolia, China Comparative Study on the Characteristics of Photosynthesis and Transpiration in Aneurolepidium chinense of Different Soil Types Effect of Cu2+ on PSⅡ Activity and Energy Transfer of Phycobillisome in Intact Cells of Spirulina platensis Apoplastic β-1, 3-Glucanases in Leaves of Tomato Systematically Infected by TMV Effects of KCN and NaN3 Pretreatment on the Cyanide-Resistant Respiration in Tobacco Callus Physiological, Biochemical and Cytological Changes in Senescing Corolla of Four-O‘clock Flower The Effect of Manganese on the Reconstitution of Partial Metallocluster-deficient Nitrogenase Molybdenum-Iron Protein A Study on the Intrinsic Growth Rate of Scirpus planiculmis Populations Structure of Micropyle in Gossypium hirsutum and the Pathway of Pollen Tube Growth Purification of an Apoplastic β-N-Acetyl-D-Hexosaminidase from Tomato Leaves Infected with Tobacco Mosaic Virus Nuclear Invagination and Nuclear Vacuole Formation in Several Plants Cloning and Sequencing of VL Gene of Monoclonal Antibody Against Beet Necrotic Yellow Vein Virus The cDNA Cloning and Nucleotide Sequence of the Gene Encoding Nonstrucure Protein of Rice Dwarf Virus Genome Segment 10 Climatic Gradiant of Main Vegetation Types in the Loess Plateau Region The Secoiridoides Isolated from Swertia nervosa(G. Don)Wall. ex C. B. Clarke Studies on the Structure and Development of Secretory Cavities in Poncirus Trifoliata Cytoplasmic Ultrastructural Changes During Microsporogenesis of Gossypium hirsutum:With Emphasis on Comparative Investigation on Plasmolemma Properties of Different Reed Ecotypes in Hexi Corridor The Giant Stacked Rough Endoplasmic Reticulum and Its Activity During Cotton Microspore Development Comparative Studies on Relation of Photosynthesis to Water Status of Two Species of Haloxylon Under Controlled Environments Holocene Palynological Records in Lake Selincuo,Northern Xizang Resistance to Potato Virus X Infection in Transgenic Tobacco Plants with Coat Protein Gene of Virus Studies on Assembly of Vanadium-iron Protein in Vitro Environmental Regulation of CO2 Exchange Pattern in Facultative CAM Plants Studies on the Characterization of Root Morphology of White Clover Infected by Transconjugant of Rhizobium leguminosarum Studies on Epidermal Hairs of Gossypium Studies on Seed Development and Embryogenesis in Liriodendron chinense (Hemsl.) Sarg Study on Hairy-Root Cultures of Fagopyrum cymosum cDNA Cloning and Sequencing of Gene Encoding 54 kD Protein of Tobacco Mosaic Virus Expression of Rice Stripe Virus Coat Protein Gene in Transgenic Rice Plants The Chemical Constituents of Glycyrrhiza aspera Root The cDNA Cloning and Nucleotide Sequence of Potato Virus X Coat Protein Gene Studies on Somatic Embryogenesis and Histological Observation in Gossypium hirsutum L. cv. Coker 312 Late-Glacial and Postglacial Vegetation and Associated Environment in Jianghan Plain Effect of BYDV Infection on the Cell Surface Glycoproteins in Common Wheat,Wheatgrass and Octoploid Wheat-Wheatgrass Comparative Studies on Differentiation of Regenerated Tissue in Broussonetia papyrifera Study on Genetic Behaviour of B Chromosomes at Meiosis in Agropyron Gaertn Forest Fire in Early Holocene Forest Changes at Lake Barrine, Australia Studies on Chemicai Constituents of Fritillaria thunbergii Miq. Megasporogenesis, Microsporogenesis and Development of Female and Male Gametophyte in Siraitia grovenorii The Characteristics of Accumulation of Sulphur from the Air by the Main Plants and Soils in Beijing and Their Indicative and Purgative Abilities Studies on Some Glycosides from Olea yunnanensis Hand. -Mazz The Vegetational and Environmental History at the West Foot of Changbai Mountain, Northeast China During the Last 10,000 years The Simulation of Leaf Conductance Responses to Changes in Environmental Water Status Miocene Diatoms from the Shanwang Basin of Shandong Province and Analysis by Fuzzy Mathematics of the Paleoenvironment Tissue Culture and Embryogenesis of Gossypium hirsutum L The Ecological Wood Anatomy of the Lilac ( Syringa oblata var.giraldii Rehd.) in Taibai Mountain A New Understanding of the Bohaidinioid Dinoflagellates A Study on Airborne and Allergic Pollen Grains in Tianjin Spiral Thickenings of Vessel Elements in Magnoliaceae in China Ultrastructural Studies of Barley Mesophyll Cella lnfected with Barley Yellow Mosaic Viruses Studies on Polyploid Breeding of Isatis indigotica Fort. A Study on the Triglyceride Composition in Apricot Kernel Oil, Peach Kernel Oil and Plum Kernel Oil Comparative Anatomical Studies on the Vessel Elements of Eight Genera in Magnoliaceae Studies on the Circular Dichroism (CD) and Electron Paramaguetic Resonance(EPR) Spe-ctroscopy of the Partially Oxidized FeMo Protein from Azotobacter vinelandii Nitrogenase Photosynthetic Functions of Rice Improved by 2,3-eroxypropionate Study on the Somatic Embryogenesis from leaf of Begonia fimbristipula Hance in vitro Studies on Regeneration after Girdling of Broussonetia papyrifera (L.) Vent Effect of pp333 on Stem Elongation and Leaf Anatomy of Peanut Plant Permeability of Various Photorespiratory Metobolites to Peroxisomal Membrane and Effect of Percoll on the Integrity of Peroxisomes Photorespiration of C4 Plants Changes of the Rate of Ethylene Production and the Levels of ABA in Bartlett Pears during Maturation Mass Isolation and Culture of Pollen Protoplasts from Three Plant Species The Transference of Ri-Plasmid from Agrobacterium rhizogenes to Scopolia lurida Revealed by the Hairy Root Cultivation and the Alkaloids Production Preliminary Investigations of the Regeneration of 14 Seed Plants After Girdling Tissue Differentiation of the Regeneration Rind in Jerusalem artichoke Stem Anatomical Studies on Hypocotyl of Circaeaster Environment Analysis of the Common Fossil Diatoms from the Sediments of the China Sea A Study on the Airborne and allergic Pollen in Shenyang Comparative Studies on Water Relations and Xeromorphic Structures of Some Plant Species in the Middle Part of the Desert Zone in China Studies on the Circular Dichroism (CD) Spectra of Iron-Molyb-denum Protein from Azotobacter vinelandii Nitrogenase Changes of the CN-resistant Respiration in Callus Cultures of Nicotiana tabacurn during the Period of Differentiation