by Ka-shing Cheung., Thesis (M.Phil.)--Chinese University of Hong Kong, 1995., Includes bibliographical references (leaves 112-114)., p.i, Acknowledgments --- p.iii, Table of contents --- p.v, Abbreviations --- p.x, List of figures --- p.xi, List of tables --- p.xiii, Chapter 1. --- Introduction, Chapter 1.1 --- General introduction --- p.1, Chapter 1.2 --- Purpose of study --- p.3, Chapter 2. --- Literature review, Chapter 2.1 --- Cellulose: properties and degradation --- p.4, Chapter 2.2 --- Cellulase system, Chapter 2.2.1 --- Definition and substrate specificity --- p.5, Chapter 2.2.2 --- Co-operation of cellulases --- p.5, Chapter 2.2.3 --- Multiplicity of cellulases --- p.6, Chapter 2.2.4 --- Regulation of cellulase synthesis --- p.6, Chapter 2.2.5 --- Architecture of cellulase protein --- p.8, Chapter 2.3 --- Molecular biology of fungal cellulase genes, Chapter 2.3.1 --- Structural organization of fungal cellulase genes --- p.15, Chapter 2.3.1.1 --- Promoter and regulatory sequence --- p.15, Chapter 2.3.1.2 --- Sequence at transcriptional start point (tsp) --- p.16, Chapter 2.3.1.3 --- Signal peptide --- p.18, Chapter 2.3.1.4 --- Intron --- p.18, Chapter 2.3.1.5 --- General sequence homology --- p.21, Chapter 2.3.2 --- Regulation of cellulase production at molecular level --- p.23, Chapter 2.3.3 --- Multiplicity of cellulase gene --- p.24, Chapter 2.3.4 --- Tactics to clone fungal cellulase genes --- p.25, Chapter 2.3.4.1 --- Past experience --- p.25, Chapter 2.3.4.2 --- Present approach --- p.28, Chapter 2.3.5 --- The importance of cellulase gene cloning --- p.29, Chapter 2.4 --- Cellulolytic microorganisms, Chapter 2.4.1 --- Ecological roles and diversity --- p.31, Chapter 2.4.2 --- "Biology of the straw mushroom, Volvariella volvacea" --- p.31, Chapter 3. --- Materials and methods, Chapter 3.1 --- Recipes of media and solutions, Chapter 3.1.1 --- Culture media and microbial-growth related chemicals --- p.34, Chapter 3.1.2 --- Solutions --- p.36, Chapter 3.2 --- Bacterial and fungal strains and the growth and storage of mycelium, Chapter 3.2.1 --- Bacterial and fungal strains --- p.42, Chapter 3.2.2 --- Growth and storage of mycelium --- p.42, Chapter 3.3 --- Extraction of DNA from mycelium --- p.43, Chapter 3.4 --- Degenerate polymerase chain reaction (PCR), Chapter 3.4.1 --- Primers --- p.45, Chapter 3.4.2 --- Amplification conditions of degenerate PCR --- p.46, Chapter 3.5 --- Cloning of PCR products, Chapter 3.5.1 --- Ligation --- p.47, Chapter 3.5.2 --- Transformation --- p.47, Chapter 3.5.3 --- Screening by blue/white selection --- p.47, Chapter 3.5.4 --- Screening by PCR --- p.48, Chapter 3.6 --- Plasmid extraction by alkaline lysis, Chapter 3.6.1 --- Midi-preparation of plasmid by Qiagen column --- p.51, Chapter 3.6.2 --- Preparation of plasmid using Promega's Wizard minipreps DNA purification system --- p.51, Chapter 3.7 --- Sequencing analysis of cloned PCR products, Chapter 3.7.1 --- Growth and titering of helper phage R408 --- p.53, Chapter 3.7.1.1 --- Plate elution method --- p.53, Chapter 3.7.1.2 --- Liquid culture method --- p.53, Chapter 3.7.1.3 --- Titering of R408 --- p.53, Chapter 3.7.2 --- Rescue of single-stranded DNA from pCR-Script phagemid --- p.54, Chapter 3.7.3 --- Sequencing by chain-termination reaction --- p.54, Chapter 3.7.4 --- Preparation of polyacrylamide gel for DNA sequencing --- p.56, Chapter 3.7.5 --- Running a sequencing gel --- p.57, Chapter 3.7.6 --- "Fixation, exposure and development of sequencing gel and X-ray film" --- p.57, Chapter 3.7.7 --- Sequence analysis --- p.58, Chapter 3.8 --- Digestion of DNA with restriction enzymes --- p.59, Chapter 3.9 --- Agarose gel electrophoresis --- p.60, Chapter 3.10 --- Purification of DNA from agarose gel by Qiaex --- p.61, Chapter 3.11 --- Southern hybridization, Chapter 3.11.1 --- Southern blotting and DNA immobilization --- p.62, Chapter 3.11.2 --- Random-labelling of DNA probe and removal of unincorporated nucleotides --- p.63, Chapter 3.11.3 --- Pre-hybridization and hybridization --- p.63, Chapter 3.11.4 --- Exposure and development --- p.64, Chapter 3.11.5 --- Determination of molecular weight of hybridization signals --- p.65, Chapter 4. --- Results, Chapter 4.1 --- Extraction of DNA from the straw mushroom mycelium --- p.66, Chapter 4.2 --- Amplification of V. volvacea genomic DNA using degenerate primers --- p.70, Chapter 4.3 --- Cloning of PCR products using pCR-Script SK (+) cloning kit, Chapter 4.3.1 --- Screening by blue/white selection --- p.77, Chapter 4.3.2 --- Screening by PCR --- p.77, Chapter 4.4 --- Plasmid extraction by alkaline lysis --- p.80, Chapter 4.5 --- Preparation of single-stranded DNA template for sequencing, Chapter 4.5.1 --- Growth and titering of helper phage R408 --- p.82, Chapter 4.5.2 --- Rescue of single-stranded DNA from pCR-Script phagemid --- p.82, Chapter 4.6 --- Sequencing of cloned PCR products, Chapter 4.6.1 --- The choice of template --- p.84, Chapter 4.6.2 --- DNA and translated amino acid sequence of PCR clones --- p.84, Chapter 4.6.3 --- Alignment of DNA sequences against other fungal cellulase genes --- p.93, Chapter 4.6.4 --- Alignment of translated amino acid sequences against other fungal cellulase --- p.96, Chapter 4.7 --- Purification of DNA from agarose gel by Qiaex --- p.98, Chapter 4.8 --- Southern hybridization, Chapter 4.8.1 --- Restriction digestion of genomic DNA --- p.101, Chapter 4.8.2 --- Hybridization --- p.104, Chapter 5. --- Discussion, Chapter 5.1 --- Extraction of DNA from V. volvacea mycelium --- p.107, Chapter 5.2 --- Rationales of designing degenerate primers from heterologous amino acid sequence --- p.107, Chapter 5.3 --- Amplification of V. volvacea DNA using degenerate primers --- p.110, Chapter 5.4 --- Cloning of PCR products using pCR-Script system --- p.111, Chapter 5.5 --- The precaution of using Qiaex-purified DNA --- p.112, Chapter 5.6 --- Sequencing analysis, Chapter 5.6.1 --- DNA sequence analysis --- p.113, Chapter 5.6.2 --- Protein sequence analysis --- p.114, Chapter 5.7 --- Southern hybridization --- p.116, Chapter 6. --- Conclusion and further analysis --- p.117, Chapter 7. --- References --- p.119, http://library.cuhk.edu.hk/record=b5888545, Use 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/)