Dissertation > Excellent graduate degree dissertation topics show

Studies on Phenotype and Phsiological Metabolism of Catharanthus Roseus under Supplementary UV-B Radiation and Nitrogen Levels

Author: WangHuaZuo
Tutor: TangZhongHua
School: Northeast Forestry University
Course: Botany
Keywords: Periwinkle UV-B radiation Nitrogen deposition Phenotype Physiological and metabolic
CLC: S682.19
Type: Master's thesis
Year: 2010
Downloads: 59
Quote: 0
Read: Download Dissertation

Abstract


Due to human activities and natural disasters, surface UV-B radiation and nitrogen deposition will be a significant feature of the ecological environment, enhanced UV-B radiation and nitrogen deposition have significant biological effects on organisms. In this paper, the artificial climate chamber conditions, settlement enhanced by applying UV-B lamps as well as increased UV-B radiation and nitrogen in the nutrient solution nitrate concentrations simulated ecological environment periwinkle phenotype, physiological metabolism, especially for Changchun the flower medicine with the active ingredient Vindoline Catharanthine, vinblastine metabolism of, in order to explore the the processing 3D (initial), 7d (mid-term) and 15d (long-term) periwinkle response to UV-B radiation and nitrogen deposition enhanced physiological and ecological adaptation mechanisms. The main results are as follows: 1, UV-B radiation and nitrogen supply enhanced to have a significant effect on the morphology and biomass of Vinca, also has a significant difference in the time to deal with different. Enhanced nitrogen supply or enhanced UV-B radiation, or both processing the periwinkle plant height, leaf angle, root to shoot ratio and biomass are significantly reduced; enhanced nitrogen supply or enhanced UV-B radiation treatment, Changchun mosaic a significant increase in the number of both a significant reduction in processing Changchun mosaic number. UV-B radiation and nitrogen supply enhanced oxidative stress status under the periwinkle its antioxidant response significant difference, a significant difference under different time. Enhanced UV-B radiation or enhanced nitrogen supply, or both at the same time increase the early stage of treatment, periwinkle leaves H202 and MDA content increased significantly; enhanced nitrogen supply or enhanced UV-B radiation, or both early stage of treatment periwinkle leaves antioxidant enzyme activities were significantly increased; enhanced UV-B radiation treatment significantly promote the periwinkle leaves UV-B absorbing compounds biosynthesis and its content is further increased with the increase in nitrogen supply. UV-B radiation and nitrogen supply enhancements have a significant effect on the characteristics of Changchun spent together, also has a significant difference in the time to deal with different. UV-B radiation or nitrogen supply enhanced early phase of treatment were inhibition of Changchun flower leaves photosynthetic rate, stomatal conductance and transpiration rate, and the interaction between the two Changchun flower leaves the photosynthetic rate and stomatal conductivity degree than its separate role were significantly increased; nitrogen supply enhanced processing periwinkle leaf water use efficiency significantly increased, while UV-B radiation enhancement Changchun flower water use efficiency was significantly reduced; nitrogen supply enhanced long-term deal with periwinkle leaf total chlorophyll and carotenoid content significantly increased UV-B radiation enhancement or of both long-term treatment periwinkle total leaf chlorophyll and carotenoid content were significantly reduced. UV-B radiation and nitrogen supply enhanced multi-the periwinkle blade Chinese spirit, Catharanthine and vinblastine indole alkaloids content have a significant impact. Increase in nitrogen supply and UV-B radiation combined effect of Changchun mosaic film alkaloid content than alone, a significant increase, combined with three alkaloids showed a significant positive correlation between enhanced UV-B radiation more nitrogen sources may promote the use of a precursor substance of the three alkaloids biosynthesis, the conversion of the three alkaloids.

Related Dissertations

  1. Comparison of Chondrogenic Potential between Mesenchymal Stem Cells from Rabbits’ Bone Marrow and Adipose Tissue,R329
  2. Expression of Fhit and Wwox in Salivary Gland Malignancies and Their Significance,R739.8
  3. Octagonal phenotypic diversity and germplasm research AFLP,S573.9
  4. Impacts of Simulated Nitrogen Deposition on Soil Organic Carbon Pool in Chinese Fir Plantation,S714
  5. The Analysis of Prognostie Factors of Diffuse Large B-cell LymPhoma,R733.1
  6. Biologica, Clinical and Hematologic Characteristics of a Rare Acture Myeloegakaryoctic Leukemia,R733.7
  7. Study on the Relationship of the ATP7B Gene Mutation and Clinical Phenotype in WD Patients,R575.24
  8. Enhanced UV-B radiation effects on Tobacco Discussion chemical species,S572
  9. Effect of Enhanced Ultraviolet Radiation on the Physiological Characteristics and the Yield and Quality of Cotton in Xin Jiang,S562
  10. Diagnosis of Mixed Phenotype Acute Leukaemia,R733.7
  11. The Differential Diagnosis of Lymphoproliferative Disorders by Immunophenotypic Analysis with Flow Cytometry,R733.7
  12. The Application of Array Based Comparative Genomic Hybridization in Diagnosis and Prenatal Diagnosis the Imbalanced Chromosomal Aberration,R714.55
  13. One case of hereditary coagulation factor VII deficiency pedigree gene mutation and clinical phenotype Relationship,R554
  14. 1.Molecular Backgroud of D Variants in Han Population of Sichuan 2.Study of RhD Negative Individuals of RHD Gene Polymorphism in Han Population of Sichuan,R394
  15. Regulation of Phenotype by Dibutyryl-cAMP in Irradiation-stimulated Murine BV2 Microglial Cells,R329
  16. Responses of Celery Growth to Enhanced UV-B Radiation and Soil Water Stress,S636.3
  17. Multiple myeloma molecular cytogenetic techniques and cytogenetic abnormalities research,R733.3
  18. The Morphological Characteristics and Phenotype of Induced Dendritic Cells in Peripheral Blood Mononuclear Cells (PBMC) in Patients with Cystic Echinococcosis,R532.3
  19. Effects of Atmospheric Nitrogen Deposition on Beili Lake in Hangzhou,X524
  20. Study on the Damages and the Protection Response of Leaves of Mangifera Indica Linn Young Trees under Enhanced UV-radiation,S667.7
  21. Swine E. coli and Salmonella resistant phenotype and genotype studies,S852.61

CLC: > Agricultural Sciences > Gardening > Ornamental Horticulture ( flowers and ornamental trees) > Perennial Flowers > Perennial Flowers Class > Other
© 2012 www.DissertationTopic.Net  Mobile