Dissertation > Excellent graduate degree dissertation topics show

Studies on the Mechanism of Rhizome Development of Schisandra Chinensis (turcz.) Baill.

Author: WangZhenXing
Tutor: AiJun
School: Chinese Academy of Agricultural Sciences
Course: Medicinal plant resources school
Keywords: Schisandra chinensis (Turcz.) Baill morphogenesis rhizome soluble protein peroxidase isoenzyme endogenous hormone
CLC: S567.19
Type: Master's thesis
Year: 2010
Downloads: 54
Quote: 1
Read: Download Dissertation

Abstract


In order to study the differences of morphology and anatomy between the root, stem and rhizome, one year old, two years old and six years old Schisandra chinensis (Turcz.) Baill were used as experiment materials and we also observed the morphogenesis of rhizome from seedling of Schisandra chinensis (Turcz.) Baill. Through the determination of soluble sugar, soluble protein, hormone and peroxidase isoenzyme in the process of formation of rhizome, we try to reveal the relations between the formation mechanism and these factors.The experiment results were as follows:1. Development of the rhizome was similar to stem, both of them can be divided into promeristem, primary and secondary growth three stages. However, the ultrastructure of primary growth was different, for example, there was a special membrane clinging on the first layer cell of stem tip, and it was much more developed than rhizome tip with completed envelope, more plastids and less vacuoles, while the rhizome tip had more vacuoles and lipid droplets. Furthermore, they had other differences in tip type and secondary structure, for example, the rhizome tip was bendy and the proportion of secondary growth of the rhizome was less than stem.2. Secondary structure of root was composed of periderm, cambium layer, secondary xylem and phloem, while we didn’t find the parenchyma cells with lignification, developing patterns of primary structure of rhizome is endarch, which is different of developing patterns of primary structure of root.3. One year axillary bud of cotyledon could develop to rhizome in late August-early September slowly, and the axillary bud of rough leaf to the eighth euphylla would develop into rhizome finally when the condition was appropriate. Rotiform rhizomes were concentrated and whorled in the base of stem. Ultrastructure of axillary bud on the higher node have more differences from rough leaf, it would be decided in early stage that whether axillary bud of cotyledon develop to rhizome or not.4. Rhizome tip of Schisandra chinensis (Turcz.) Baill had higher content of soluble sugar at initial and dormant period, which reflects the rhizome is different with other plants’rhizome. We found the rhizome not only had the reproductive function, but also had certain of storage feature, so the rhizome competed with the ground on nutrition. There was relationship between the content of soluble protein and the strong level of growth, and in the vigorous growth of rhizome, soluble protein content was consequently higher.5. There was a great difference of peroxidase isoenzyme map in different developmental period and different type of buds in the process of the formation and development rhizome. The buds which can develop into rhizome have two more POD isoenzyme bands than the buds can’t develop into rhizome. The two POD isoenzyme bands is specific zymogram.6. Levels of ABA and ZR were higher in formation period of rhizomes of Schisandra chinensis (Turcz.) Baill, which were conducive to induce rhizome. Levels IAA and GA3 were higher in the elongation growth stage, which were essential to rhizome elongation.

Related Dissertations

  1. Changes of Endogenous Hormones and Cloning of the Genes Relative to Resistance during the Interaction of Non-Heading Chinese Cabbage and TuMV,S634.3
  2. Evaluating Nutritive Value of Fish Soluble Protein,S816
  3. Rare on crop body protein , amino acids and effector impact study,S312
  4. Odoratum key technologies Tissue Culture,S567.239
  5. Vitamin A deficiency on lung morphogenesis of comparative study,R714.2
  6. Study on the Substance Changes and Their Relationship with Dormancy Broken of M. Sieboldiik. Koch Seeds during Stratification,S685.15
  7. Optimization of Tissue Culture System and Proliferation of Rhizome in Bioreactor Culture of Cymbidium Sinense Willd.,S682.31
  8. Pharmacological Research of Sika Antlerbase Protein Composition,R285
  9. Study on Separation and Properties of Protein from Tilapia Muscle,TS254.4
  10. Site Condition Analysis and Underground Rhizome-root System Research of Phyllostachys Nidularia Munro,S795
  11. Study on Dietary Fiber and Other Functional Components in Pineapple Fruit,TS255.1
  12. Morphogenesis of Linum Usitatissimum L. ‘Fany’ in Vitro and Protoplast Fusion Between L. Usitatissimum ‘Shuangya No.5’ and Apocynum Venetum L.,S563
  13. Built by \,G222.2
  14. Effects of Growth Regulant on Development of Calyx and Dynamic Change of Endogenous Hormone and Fruit Quality in Chinese Pear ’Dangshansuli’,S661.2
  15. Establishment of a Ramie High-Efficiency Plant Regeneration System and Study of the Relative Physiological Parameters,S567.239
  16. Saponins of Panax reed head flash extraction and separation and activity of saponins Biotransformation,R285
  17. Identification and Dynamic Variations of Yeast Isolated from Yuma Vineyard of Ningxia,TS262.6
  18. Hair Follicle Morphogenesis and Expression Pattern of β-catenin in Tibetan Goat Embryos,S827
  19. High Expression of Erns Protein of Classical Swine Fever Virus and Establishment of an Indirect Elisa for Detection of Antibody with the Expressed Protein,S858.28
  20. Study on Morphological Differentiation of Flower Bud of Hippeastrum Vittatum,S682.25

CLC: > Agricultural Sciences > Crop > Economic crops > Medicinal crops > Woody > Other
© 2012 www.DissertationTopic.Net  Mobile