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Isolation of actin gene fragments from Chlorella vulgaris and the construction of transgenic cassettes for the production of bacillus: toxin in Chlorella vulgaris.

by Chow Fung-cheung, Judy. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1995. / Includes bibliographical references (leaves 106-117). / ACKNOWLEDGMENT --- p.i / ABSTRACT --- p.ii / TABLE OF CONTENTS --- p.iv / LIST OF ABBREVIATIONS --- p.ix / LIST OF FIGURES AND TABLES --- p.xii / Chapter SECTION I- --- ISOLATION OF ACTIN GENE FRAGMENTS FROM CHLORELLA VULGARIS / Chapter CHAPTER 1: --- INTRODUCTION / Chapter 1.1 --- Functions of Actin --- p.1 / Chapter 1.1.1 --- Functions of Actin in Animals --- p.1 / Chapter 1.1.2 --- Functions of Actin in Plants --- p.2 / Chapter 1.1.2.1 --- In Lower Plants --- p.2 / Chapter 1.1.2.2 --- In Higher Plants --- p.2 / Chapter 1.2 --- Molecular Studies of Actin Gene Families in Plants --- p.4 / Chapter 1.2.1 --- Multigene Family --- p.4 / Chapter 1.2.2 --- Homologies Across Kingdom --- p.4 / Chapter 1.2.3 --- Homologies Within Kingdom --- p.5 / Chapter 1.2.4 --- Position of Intron --- p.5 / Chapter 1.2.5 --- Differential Expression of Actin Genes --- p.7 / Chapter 1.3 --- Objectives of Present Studies --- p.7 / Chapter CHAPTER 2: --- GENERAL TECHNIQUES / Chapter 2.1 --- Growth of Algal Strain --- p.9 / Chapter 2.2 --- Growth of Bacterial Strains --- p.10 / Chapter 2.3 --- Agarose Gel Electrophoresis --- p.10 / Chapter 2.4 --- Restriction Enzyme Digestion --- p.10 / Chapter 2.5 --- Recovery of DNA Fragments from Agarose Gel --- p.11 / Chapter 2.5.1 --- Glass Powder Elution of DNA --- p.11 / Chapter 2.5.2 --- Sephaglas´ёØ BandPrep Kit --- p.11 / Chapter 2.6 --- Large Scale Preparation of Plasmid by Using Magic´ёØ Maxipreps DNA Purification System --- p.12 / Chapter 2.7 --- Ligation --- p.13 / Chapter 2.8 --- Preparation of Competent Cells --- p.13 / Chapter 2.9 --- Transformation of Competent Cells --- p.14 / Chapter 2.10 --- Screening of Recombinant Plasmids --- p.14 / Chapter 2.11 --- Spun Column Techniques --- p.15 / Chapter CHAPTER 3: --- PCR-CLONING OF ACTIN GENE FRAGMENTS FROM CHLORELLA VULGARIS / Chapter 3.1 --- Introduction --- p.16 / Chapter 3.2 --- Materials and Methods --- p.16 / Chapter 3.2.1 --- Preparation of Genomic DNA from C. vulgaris --- p.16 / Chapter 3.2.2 --- Amplification of Actin Genomic Fragments by PCR --- p.17 / Chapter 3.2.3 --- Cloning of PCR Products --- p.17 / Chapter 3.2.4 --- Southern Blotting --- p.18 / Chapter 3.2.5 --- Radiolabeling of DNA Probe --- p.19 / Chapter 3.2.6 --- Prehybridization and Hybridization --- p.19 / Chapter 3.2.7 --- Sequencing Strategies --- p.20 / Chapter 3.2.7.1 --- Isolation of Template DNA --- p.20 / Chapter 3.2.7.2 --- Template Denaturation and Primer Annealing --- p.21 / Chapter 3.2.7.3 --- Labeling and Termination Reaction --- p.21 / Chapter 3.2.7.4 --- DNA Sequencing Electrophoresis --- p.21 / Chapter 3.3 --- Results and Discussion --- p.22 / Chapter CHAPTER 4: --- CLONING OF ACTIN COMPLEMENTARY DNA FRAGMENT FROM CHLORELLA VULGARIS / Chapter 4.1 --- Introduction --- p.31 / Chapter 4.2 --- Materials and Methods --- p.31 / Chapter 4.2.1 --- Preparation of RNA --- p.31 / Chapter 4.2.2 --- RT-PCR --- p.32 / Chapter 4.2.3 --- Southern Blotting and Hybridization --- p.32 / Chapter 4.2.4 --- Radiolabeling of DNA Probe --- p.32 / Chapter 4.2.5 --- Cloning of RT-PCR Product --- p.33 / Chapter 4.2.6 --- DNA Sequencing --- p.33 / Chapter 4.2.7 --- Sequence Analysis --- p.33 / Chapter 4.3 --- Results and Discussion --- p.34 / Chapter CHAPTER 5: --- SEQUENCE COMPARISON OF ACTIN GENES / Chapter 5.1 --- Introduction --- p.44 / Chapter 5.2 --- Materials and Methods --- p.44 / Chapter 5.3 --- Results and Discussion --- p.44 / Chapter 5.3.1 --- Nucleotide Sequence Analysis --- p.44 / Chapter 5.3.2 --- Analysis of the Predicted Amino Acid Sequence --- p.49 / Chapter 5.3.3 --- Codon Usage --- p.49 / Chapter 5.3.4 --- Intron-Exon Structure in Plant Actin Genes --- p.51 / Chapter 5.3.5 --- General Discussion --- p.53 / Chapter CHAPTER 6: --- ISOLATION OF FURTHER UPSTREAM SEQUENCE FOR ACTIN GENE (CAc18G) FROM CHLORELLA VULGARIS / Chapter 6.1 --- Introduction --- p.54 / Chapter 6.2 --- Materials and Methods --- p.54 / Chapter 6.2.1 --- Genomic Southern Analysis --- p.54 / Chapter 6.2.2 --- Preparation of Actin-Enriched DNA Fraction --- p.55 / Chapter 6.2.3 --- Ligation of Actin-Enriched Fragments with Specific DNA Cassette --- p.55 / Chapter 6.2.4 --- Amplification of Upstream Sequence by Nested PCR --- p.55 / Chapter 6.2.5 --- DNA Sequencing --- p.56 / Chapter 6.3 --- Results and Discussion --- p.57 / Chapter SECTION II - --- CONSTRUCTION OF TRANSGENIC CASSETTES FOR THE PRODUCTION OF BACILLUS TOXIN IN CHLORELLA VULGARIS / Chapter CHAPTER 1: --- INTRODUCTION / Chapter 1.1 --- Characteristics of Algae --- p.64 / Chapter 1.2 --- Biotechnology Potential of Algae --- p.66 / Chapter 1.3 --- Transgenic Algae --- p.68 / Chapter 1.3.1 --- Genes of Selection for Transformant --- p.70 / Chapter 1.3.1.1 --- Homologous Genes --- p.70 / Chapter 1.3.1.2 --- Heterologous Genes --- p.70 / Chapter 1.3.2 --- Transformation Technologies Used in Algae --- p.71 / Chapter 1.3.3 --- Expression of Transgenes in Algae --- p.73 / Chapter 1.4 --- Bacillus Toxin --- p.73 / Chapter 1.4.1 --- Bacillus thuringiensis --- p.73 / Chapter 1.4.2 --- Classification of Bacillus Toxin Genes (Cry Genes) --- p.74 / Chapter 1.4.2.1 --- Type I (CtyI Genes) --- p.74 / Chapter 1.4.2.2 --- Type II (CryII Genes) --- p.75 / Chapter 1.4.2.3 --- Type III (CryIII Genes) --- p.76 / Chapter 1.4.2.4 --- Type IV (CryIV Genes) --- p.76 / Chapter 1.4.3 --- Mode of Action of Insecticidal Effects --- p.77 / Chapter 1.5 --- Insect-Resistance Transgenic Plants --- p.78 / Chapter 1.5.1 --- Transgenic Plants Expressing Crystal Protein Gene --- p.79 / Chapter 1.5.2 --- Problems Encountered --- p.80 / Chapter 1.6 --- Aims of Present Studies --- p.80 / Chapter CHAPTER 2: --- CONSTRUCTION OF TRANSGENIC CASSETTES / Chapter 2.1 --- Introduction --- p.82 / Chapter 2.2 --- Materials and Methods --- p.82 / Chapter 2.2.1 --- Preparation of Plasmids Involved in the Construction of Master Cassette --- p.82 / Chapter 2.2.2 --- Construction of Master Cassette --- p.83 / Chapter 2.2.3 --- Multiple Cloning Site (MCS) of Master Cassette --- p.83 / Chapter 2.2.4 --- Preparation of Plating Cells --- p.85 / Chapter 2.2.5 --- Titering --- p.85 / Chapter 2.2.6 --- Preparation of Plate Lysate --- p.86 / Chapter 2.2.7 --- Amplification of Coding Region of CryIVC Gene --- p.86 / Chapter 2.2.8 --- Cloning of PCR Products --- p.87 / Chapter 2.2.9 --- Construction of Transgenic Cassette --- p.87 / Chapter 2.2.10 --- Confirmation of the Junction Sites --- p.89 / Chapter 2.2.11 --- Testing for the Sensitivity of Algae Towards Kanamycin --- p.90 / Chapter 2.3 --- Results and Discussion --- p.91 / Chapter CHAPTER 3: --- TRANSFORMATION OF ALGAE BY ELECTROPORATION / Chapter 3.1 --- Introduction --- p.97 / Chapter 3.2 --- Materials and Methods --- p.97 / Chapter 3.2.1 --- Harvesting of Algae --- p.97 / Chapter 3.2.2 --- Electroporation at Different Field Strength --- p.98 / Chapter 3.2.3 --- Plating Culture of Algal Cells --- p.98 / Chapter 3.2.4 --- Preparation of Plasmids for Electrop oration --- p.98 / Chapter 3.2.5 --- Transformation of Algae --- p.100 / Chapter 3.2.6 --- Study on the Uptake of DNA after Electrop oration --- p.100 / Chapter 3.2.6.1 --- Genomic DNA Preparation --- p.100 / Chapter 3.2.6.2 --- Analysis of DNA Uptake --- p.101 / Chapter 3.3 --- Results and Discussion --- p.101 / REFERENCES --- p.106 / APPENDIX --- p.118

Identiferoai:union.ndltd.org:cuhk.edu.hk/oai:cuhk-dr:cuhk_320667
Date January 1995
ContributorsChow, Fung-cheung Judy., Chinese University of Hong Kong Graduate School. Division of Biochemistry.
PublisherChinese University of Hong Kong
Source SetsThe Chinese University of Hong Kong
LanguageEnglish
Detected LanguageEnglish
TypeText, bibliography
Formatprint, xiii, 120 leaves : ill. (some mounted 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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