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枳碱性/中性转化酶基因PtrA/NINV功能分析

摘要第7-9页
Abstract第9-10页
Abbreviations第11-13页
1. Introduction第13-14页
2. Literature review第14-26页
    2.1. The common approach of functional characterization of the gene第14-15页
    2.2. Abiotic stress: As major environmental factors第15-18页
        2.2.1. Drought stress第16页
        2.2.2. Salt stress第16-17页
        2.2.3. Cold stress第17-18页
    2.3. Plant responses to unfavorable abiotic stressors第18-23页
        2.3.1. Generic pathway of plant response to abiotic stresses第18-20页
        2.3.2. Osmotic response of plants against abiotic stress第20-21页
        2.3.3. Reactive oxygen species (ROS) homoeostasis under abiotic stress第21-23页
    2.4. Photosynthesis process and its related parameters第23-24页
    2.5. Alkaline/neutral invertase genes第24-26页
3. The objectives第26-27页
4. Materials and methods第27-43页
    4.1. Materials第27-28页
        4.1.1. Plant materials and growth conditions第27页
        4.1.2. Plasmids第27-28页
        4.1.3. Bacteria第28页
        4.1.4. Kits and Enzymes第28页
    4.2. Methods第28-43页
        4.2.1. Bioinformatics analysis of Ptr A/NINV sequence第28-29页
        4.2.2. Transcription level analysis of Ptr A/NINV第29-32页
            4.2.2.1. RNA extraction第29-30页
            4.2.2.2. First strand c DNA synthesis第30-31页
            4.2.2.3. Quality test of synthesized c DNA第31页
            4.2.2.4. Quantitative real-time RT-PCR (q RT-PCR) analysis第31-32页
        4.2.3. Subcellular localization analysis of Ptr A/NINV第32-36页
            4.2.3.1. Construct the fusion protein of Ptr A/NINV:: GFP第32-35页
            4.2.3.2. Agrobacterium-mediated transient expression of the Ptr A/NINV:: GFP fusion protein第35-36页
        4.2.4. Identification the promoter sequence of Ptr A/NINV第36-37页
            4.2.4.1. DNA extraction第36-37页
            4.2.4.2. Isolation the promoter region of Ptr A/NINV第37页
        4.2.5. Isolation of Ptr A/NINV protein第37-38页
            4.2.5.1. Construct the recombinant His6:: Ptr A/NINV fusion protein第37页
            4.2.5.2. Assay the recombinant His6:: Ptr A/NINV fusion protein第37-38页
        4.2.6. Abiotic stress tolerance analysis of Ptr A/NINV overexpressing plants第38-43页
            4.2.6.1. Regeneration of Ptr A/NINV overexpressing plants第38-39页
            4.2.6.2. Cold stress tolerance assay第39页
            4.2.6.3. Salt stress tolerance assay第39-40页
            4.2.6.4. Drought stress tolerance assay第40页
            4.2.6.5. Physiological and biochemical measurements第40-43页
        4.2.7. Statistical analysis第43页
5. Results第43-61页
    5.1. Identification and sequence analysis of Ptr A/NINV第43-46页
    5.2. Identification the promoter sequence of Ptr A/NINV第46-47页
    5.3. Expression pattern analysis of Ptr A/NINV第47-48页
    5.4. Ptr A/NINV localizes in the mitochondria and chloroplast第48-50页
    5.5. Generation of stable Ptr A/NINV-overexpressing plants第50-51页
    5.6. Enhanced cold tolerance in the transgenic plants第51页
    5.7. Ptr A/NINV overexpression renders robust salt stress tolerance第51-55页
    5.8. Overexpression of Ptr A/NINV improved drought tolerance第55-57页
    5.9. Ptr A/NINV-overexpressing plants accumulate lower ROS and hold moreantioxidant enzyme activities第57-58页
    5.10. The increase in A/N-INV activity and reducing sugar contents underpin thedetoxification of ROS第58-60页
    5.11. Analysis of the expression patterns of several genes related to antioxidantdefense, stress response and sugar metabolism under cold and salt stresses第60-61页
6. Discussion第61-67页
7. Conclusion第67-68页
8. References第68-77页
9. The achievements第77-78页
10. Appendixes第78-88页
    Appendix-I第78-80页
    Appendix-II第80-82页
    Appendix-III第82-83页
    Appendix-IV第83-84页
    Appendix-V第84-85页
    Appendix-VI第85-86页
    Appendix-VII第86-87页
    Appendix-VIII第87-88页
ACKNOWLEDGMENTS第88-89页

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