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Engineering feedback insensitive enzymes in lysine synthetic pathway of rice.

Yu, Wai Han. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2011. / Includes bibliographical references (leaves 87-101). / Abstracts in English and Chinese. / ACKNOWLEDGEMENTS --- p.iii / ABSTRACT --- p.iv / 摘要 --- p.vi / LIST OF CONTENTS --- p.viii / LIST OF FIGURES --- p.xii / LIST OF TABLES --- p.xiv / LIST OF ABBREVIATIONS --- p.xv / Chapter CHAPTER 1. --- GENERAL INTRODUCTION --- p.1 / Chapter CHAPTER 2. --- LITERATURE REVIEW --- p.3 / Chapter 2.1 --- The importance of rice --- p.3 / Chapter 2.2 --- Limitation of essential amino acids in rice --- p.4 / Chapter 2.3 --- Lysine biosynthetic pathway --- p.6 / Chapter 2.3.1 --- The biosynthesis of aspartate --- p.6 / Chapter 2.3.2 --- Aspartate family pathway --- p.3 / Chapter 2.3.2.1 --- Aspartate kinase (AK) --- p.10 / Chapter 2.3.2.2 --- Dihydrodipicolinate synthase (DHPS) --- p.12 / Chapter 2.3.2.3 --- Other enzymes --- p.14 / Chapter 2.4 --- Regulation of lysine content in plant --- p.15 / Chapter 2.5 --- Enhancement of lysine content in plants --- p.16 / Chapter 2.5.1 --- "Breeding, selection and naturally occuring muatnts" --- p.17 / Chapter 2.5.2 --- Induced biochemical mutants --- p.18 / Chapter 2.5.3 --- Transgenic plants --- p.19 / Chapter 2.6 --- Hypothesis --- p.24 / Chapter CHAPTER 3. --- MATERIALS AND METHODS --- p.25 / Chapter 3.1 --- Introduction --- p.25 / Chapter 3.2 --- Chemicals --- p.25 / Chapter 3.3 --- Bacterial strains --- p.25 / Chapter 3.4 --- Cloning of AK and DHPS cDNAs --- p.25 / Chapter 3.4.1 --- Plant materials --- p.25 / Chapter 3.4.2 --- RNA extraction --- p.26 / Chapter 3.4.3 --- RT-PCR amplification of AK and DHPS cDNAs --- p.26 / Chapter 3.4.4 --- Sequence modification of AK and DHPS cDNAs --- p.27 / Chapter 3.4.5 --- DNA sequencing of AK and DHPS cDNAs --- p.32 / Chapter 3.5 --- Chimeric gene construction for rice transformation --- p.32 / Chapter 3.5.1 --- Plasmid and genetic material --- p.32 / Chapter 3.5.2 --- Construction of chimeric genes with seed-specific promoter --- p.35 / Chapter 3.5.3 --- Sequence fidelity of chimeric genes --- p.37 / Chapter 3.6 --- AEC resistance of E.coli expressing modified AK and DHPS --- p.37 / Chapter 3.7 --- Rice transformation --- p.38 / Chapter 3.7.1 --- Plant materials --- p.38 / Chapter 3.7.2 --- Preparation of agrobacterium --- p.33 / Chapter 3.7.3 --- Agrobacterium-mediated rice transformation --- p.39 / Chapter 3.7.3.1 --- Callus induction from mature rice seed embryos --- p.39 / Chapter 7.3.2 --- "Co-cultivation, selection and regeneration of transgenic rice" --- p.39 / Chapter 3.8 --- Analysis of transgenic expression --- p.41 / Chapter 3.8.1 --- Genomic DNA extraction --- p.41 / Chapter 3.8.2 --- Total RNA extraction --- p.41 / Chapter 3.8.3 --- Synthesis of DIG-labeled DNA probe --- p.42 / Chapter 3.8.4 --- Southern blot analysis --- p.43 / Chapter 3.8.5 --- Northern blot analysis --- p.43 / Chapter 3.8.6 --- Extraction of rice seed protein --- p.43 / Chapter 3.8.7 --- Tricine SDS-PAGE --- p.44 / Chapter 3.8.8 --- Raising AK and DHPS antibody --- p.44 / Chapter 3.8.9 --- Western blot analysis --- p.46 / Chapter 3.9 --- Free amino acid analysis --- p.46 / Chapter CHAPTER 4. --- RESULTS --- p.48 / Chapter 4.1 --- Cloning of AK and DHPS cDNAs from rice --- p.48 / Chapter 4.1.1 --- RNA extraction and cDNAs amplification --- p.43 / Chapter 4.1.2 --- Sequencing of AK and DHPS cDNAs --- p.50 / Chapter 4.2 --- Sequence modification of AK and DHPS cDNAs --- p.50 / Chapter 4.3 --- Construction of chimeric genes --- p.50 / Chapter 4.4 --- AEC resistance of E.coli expressing modified AK and DHPS --- p.56 / Chapter 4.5 --- Rice transformation --- p.58 / Chapter 4.6 --- Detection of target genes in transgenic rice lines --- p.60 / Chapter 4.6.1 --- PCR of genomic DNA --- p.60 / Chapter 4.6.2 --- Southern blot analysis --- p.63 / Chapter 4.7 --- Northern blot analysis --- p.65 / Chapter 4.8 --- Western blot analysis of AK and DHPS proteins --- p.66 / Chapter 4.9 --- Free amino acid analysis --- p.68 / Chapter 4.9.1 --- Free lysine content --- p.68 / Chapter 4.9.2 --- Changes in other amino acids --- p.69 / Chapter CHAPTER 5. --- DISCUSSION --- p.82 / Chapter 5.1 --- Cloning and modification of AK and DHPS cDNAs --- p.82 / Chapter 5.2 --- Seed-specific expression of modified AK and DHPS in rice --- p.82 / Chapter 5.3 --- Free amino acid changes in transgenic rice lines --- p.83 / Chapter 5.4 --- Future perspectives --- p.85 / Chapter CHAPTER 6. --- CONCLUSION --- p.86 / REFERENCES --- p.87 / APPENDIX --- p.102

Identiferoai:union.ndltd.org:cuhk.edu.hk/oai:cuhk-dr:cuhk_327062
Date January 2011
ContributorsYu, Wai Han., Chinese University of Hong Kong Graduate School. Division of Life Sciences.
Source SetsThe Chinese University of Hong Kong
LanguageEnglish, Chinese
Detected LanguageEnglish
TypeText, bibliography
Formatprint, xv, 116 leaves : ill. (chiefly col.) ; 30 cm.
RightsUse of this resource is governed by the terms and conditions of the Creative Commons “Attribution-NonCommercial-NoDerivatives 4.0 International” License (http://creativecommons.org/licenses/by-nc-nd/4.0/)

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