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The Cloning and Functional Analysis of Salt Tolerance Related Genes from Thellungiella Halophila
Salt stress is one of the major abiotic stresses to the plants in the world. High concentration of sodium in soils is deleterious to growth and development of higher plants. The detrimental effects of salt on plants are a consequence of both....
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Dynamic Characteristics of Nitric Oxide and the Regulating Model of MAPK in Taxus Cuspidata Cells und
The effects of shear stress on nitric oxide (NO) and mitogen-activated protein kinase (MAPK) in Taxus cuspidata cells were investigated in a membrane-Couette. The changes of NO and cell redox, the robustness of H2O2 and MAPK regulating model....
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Difference in Adaptability to Enhanced UV-B Radiation between Different Species of Populus Section Ta
For past decades, Ultraviolet radiation, especially UV-B reaching the Earth's surface increased because of depletion of ozone layer resulted from emission of NxO and CFC's from human activities. In this experiment, different species of Popul....
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Study on the Conservation Biology of Magnolia Championii Benth
Magnolia championii Benth, belonging to Magnoliaceae Jussieu genus Magnolia Linn subgenus Magnolia Dandy section Gwillimia DC., is distributed in south-east and south-west of Guangdong, south of Guangxi and Guizhou. Its population numbers an....
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Allelopsthy in the Plant Symbiotic Velationship
While individuals of a plant community competition to the above and belowground spaces, they always affect the growth and development of neighbor plants by releasing secondary substances produced by metabolism themselves, as results of succe....
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Dendroecological Studies on Dominant Conifers of Subalpine Coniferous Forests in Western Sichuan, Sou
Miyaluo area is one of the typical regions covered by subalpine coniferous forests in western Sichuan province of southwestern China. To develop the regional tree-ring width chronology series for the dominant conifers such as Abies faxoniana....
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Preparation and Characterization of Molybdenum Doped Zinc Oxide Transparent Conducting Oxide Films
Transparent conducting oxide films (TCOs) with high optical transparence in the visible range, high optical reflectance in the infrared range and high electrical conductivity have been widely used in flat panel displays, electronic devices,....
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Design of Inorganic Microporous Structures
Zeolites and open-framework aluminophosphates are an important class of materials in the family of microporous compounds. They have been widely applied in the field of catalysis, adsorption, exchange, separation, and host-guest assembly. The....
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Fabrication of Nano-crystals of Fullerenes with Different Shapes and Investigations of Their Physical
Fullerenes, C60 and C70, as one of the most important members of carbon family have become the most focused material for their unique chemical and physical properties in the field of condensed matter physics and nanometer materials. It has b....
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Arc-discharge Synthesis and High Pressure Studies of Nanoscale Metal Nitrides
Transition metal nitrides belong to a class of interstitial compounds, in which the nitrogen atom was dissolved into the metal lattices. It makes them combine the characteristic properties of covalent solids, ionic crystals, and transition m....
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Theoretical Investigation on Several Molecules and Nanophase Materials
Quantum chemistry method, which can be used to deal with molecular system based on quantum mechanics, is employed widely to study different objects and yield many relevant methods. In this thesis, we investigate some currently attractive pro....
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Theoretical Research on Controlling Atomic Spontaneous Emission from Static and Dynamic Structured Re
The spontaneous emission phenomenon of an excited atom is one of basic processes in quantum optics. The research on spontaneous emission has attracted lots of interesting for a long time. Now the knowledge about spontaneous emission works up....
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Spontaneous Emission of a Two-level Atom Embedded in a One Dimensional Structure Containing Left-hand
Atomic spontaneous decay is a fundamental object in quantum optics. It refers to that an atom can jump from its excited state down to its ground state spontaneously due to the vacuum fluctuation, and emits a photon (radiation). Such photon h....
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Developmental Regulation of Somatostatin in Rat Mammary Gland
To study developmental regulation of somatostatin(SS) in rat mammary gland, this thesis selected virgin, days 6,12,18 of pregnancy, days 6,12,18 of lactation Sprague-Dawley rats as objection. We had studied the localization and expression of....
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Porcine Adipocyte Biology Characteristics and the Regulation Role of Insulin & Cholesterol on Its Lip
Obesity is now a global epidemic and the prevalence of this important public health problem has increased dramatically in recent years. Because it is related with morbidity and mortality, the epidemic of obesity has raised concerns of resear....
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Studies on Regulation and Regulation Mechanism of Nutrition and Hormone on Adipogenesis in Primary Ra
Adipose tissue is not only a specialized passive storage organ of energy in original and classical view, but also an active player in energy metabolism of whole body. Adipose tissue exerts a profound influence on metabolism and health of mam....
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Secreting of Penicillin G Acylase in Tat Pathway from Bacillus Subtilis
Industry ofβ-lactam antibiotics production is undergoing a huge reformation.Because the biocatalyzed processes are replacing the chemical synthesis processes. Penicillin G Acylase(EC.3.5.1.11, PGA) now plays an important role in the product....
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PKS I Gene Cloning and Functional Analysis in Streptomyces Lydicus
In order to determine the role of PKS I in the biosynthesis of acyltetramic acid antibiotic, Gene fragments of thioesterase II, 3-oxacyl-ACP synthase II, S- adenosylmethion ine synthetase and cytochrome P450 of Streptomyces lydicus AS 4.2501....
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Study on the Application of "Shotgun" Proteomic Strategies in Solving Several Bioengineering Problems
Theshotgunproteomic technologies and strategies were introduced to solving the bioengineering problems. Firstly, it was used to investigate the antibiotic biosynthesis pathways. Secondly, it was used to seek candidate tumor biomarkers and de....
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Investigation of Multilevel Hadamard Matrices, Aperiodic Sequences and Mismatched Sequences
Hadamard matrix named after the French mathematician Jacques Hadamard is originally defined as a square matrix whose entries are either +1 or -1 and whose rows are mutually orthogonal. Such orthogonal matrices can almost be directly used as....
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Isolation, Culture and Multipotential of Porcine Adipose Mesenchymal Stem Cells in Vitro
The primary role of adipocytes is to store energy in the form of triacylglycerol during times when input exceeds expenditure and to break down this stored lipid into free fatty acids when energy is required. Obesity results when energy input....
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Isolation, Culture and Identify of Goat Embryonic Stem Cells and Embryonic Germ Cells
Stable embryonic stem cells (ESCs) and embryonic germ cells (EGCs) lines, which may be perfect cells for making bio-reactor, have not yet been established. The aim of the present study was to isolate and culture ESCs and EGCs from goat embry....
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Isolation of Embryonic Stem Cells (ESCs) Derived from Porcine Fetal Mesenchymal Stem Cell by Somatic
This study was performed to develop a technique system for producing porcine embryos in vitro by somatic cell nuclear transfer (SCNT), which will be used to clone pigs and isolate embryonic stem cells (ESCs). Different types of porcine cells....
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Ginkgoales and Czekanowskiales from the Middle Jurassic in Western Junggar Basin of Xinjiang, China
Ginkgoales and Czekanowskiales are ones of the most important taxa of the Mesozoic flora all over the world and significant for the study of evolution of the gymnosperms during the geological history. Ginkgoales and Czekanowskiales are abund....
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Bennettitales from Lower Cretaceous Chengzihe Formation in Jixi Basin of Heilongjiang, China
The Jixi coal-bearing basin is one of the important industrial coal bases and significant fossil sites in China. The Lower Cretaceous Chengzihe Formation well outcropped in this basin, and composed of non-marin strata alternated by marin bed....
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Seasonal Distribution Pattern of Bacterioplankton in Relations with Important Hydrological Phenomenon
We studied the seasonal distribution pattern of Cyanobacterium Synechococcus and heterotrophic bacteria with the epifluorescence microscope, the grazing pressure using size-classed and dilution method, and their relations with some important....
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Catalytic Activity Study and Proteomic Research on Pseudomonas Stutzeri SDM
Pyruvate is an important starting material widely used as an effective precursor in the chemical, drug and agrochemical industries. At present time pyruvate can be produced by both fermentation and enzyme-catalyzed reaction. Nowadays more an....
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Microbial Biotransformation and Metabolism of Natural Propenylbenzenes
Essential oil, also known as fragrant oil, is a fragrant oily substance extracted from flowers, roots, leaves or stems of perfume plants through the techniques such as distillation, extraction, and compression. The main components of some es....
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Polypores Resources and Flora in Qinling Mountains
Being the highest mountains in central-western China continent, Qinling Mountains are the barrier of the climate both north and south China, are the boundary;ine between two floristic subregions of Sion-Japanese and Sino-Himalayas, and the i....
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Cloned and Characterization of Salt-tolerance Related Gene Mangrin and ZRP4
Large area of saline-alkali land exists in the world, high density salt stress leads to the plant growth retarded, even leads to the death. The crops plants cultivated in the saline-alkali land often occurred a wide range underproduction. On....