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Effect of stress on fruit body initiation of shiitake mushroom Lentinula edodes.January 2003 (has links)
Tjia Wai Mui. / Thesis submitted in: July 2002. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2003. / Includes bibliographical references (leaves 123-140). / Abstracts in English and Chinese. / Abstract (English) --- p.i / Abstract (Chinese) --- p.iii / Acknowledgement --- p.iv / Abbreviations --- p.v / Table of Contents --- p.vi / List of Figures --- p.x / List of Tables --- p.xii / Chapter Chapter One --- Literature Review / Chapter 1.1 --- Introduction --- p.1 / Chapter 1.2 --- Growth of L. edodes --- p.3 / Chapter 1.2.1 --- Life cycle of L. edodes --- p.3 / Chapter 1.2.2 --- Growth parameters of L. edodes --- p.6 / Chapter 1.2.2.1 --- Temperature --- p.6 / Chapter 1.2.2.2 --- Relative humidity --- p.7 / Chapter 1.2.2.3 --- Moisture content in substrate --- p.7 / Chapter 1.2.2.4 --- Light --- p.8 / Chapter 1.2.2.5 --- pH --- p.8 / Chapter 1.3 --- Cultivation of L. edodes --- p.9 / Chapter 1.3.1 --- History and development of artificial cultivation --- p.9 / Chapter 1.3.2 --- Use of forced fruiting --- p.11 / Chapter 1.4 --- Molecular studies of stress on fungi --- p.12 / Chapter 1.4.1 --- Studies of temperature stress in mushroom --- p.12 / Chapter 1.4.2 --- Studies of molecular chaperones in fungi --- p.13 / Chapter 1.4.2.1 --- Role of molecular chaperones --- p.13 / Chapter 1.4.2.2 --- Heat shock protein 70 (Hsp70) and their cochaperones --- p.13 / Chapter 1.4.2.3 --- Other chaperones --- p.15 / Chapter 1.4.2.4 --- Molecular chaperones and development --- p.16 / Chapter 1.5 --- Prospectus --- p.19 / Chapter Chapter Two --- The Effect of Stress on the Growth of L. edodes / Chapter 2.1 --- Introduction --- p.23 / Chapter 2.2 --- Materials and Methods --- p.24 / Chapter 2.2.1 --- Strain and culture conditions --- p.24 / Chapter 2.2.2 --- Stress treatments --- p.24 / Chapter 2.2.3 --- Data collection --- p.25 / Chapter 2.2.4 --- Data analysis --- p.25 / Chapter 2.3 --- Results --- p.27 / Chapter 2.3.1 --- Reliability analysis --- p.27 / Chapter 2.3.2 --- Descriptive statistics --- p.28 / Chapter 2.3.3 --- Independent t-test (ANOVA) --- p.33 / Chapter 2.4 --- Discussion --- p.37 / Chapter Chapter Three --- Sequence Analysis of selected Stress Genes / Chapter 3.1 --- Introduction --- p.39 / Chapter 3.2 --- Materials and Methods --- p.40 / Chapter 3.2.1 --- Isolation of stress genes --- p.40 / Chapter 3.2.1.1 --- Construction of primordial cDNA library --- p.40 / Chapter 3.2.1.2 --- Screening of cDNA clones --- p.40 / Chapter 3.2.2 --- Sequence analyses of stress genes --- p.41 / Chapter 3.2.2.1 --- Amplification and purification of cDNA insert --- p.41 / Chapter 3.2.2.2 --- Full length DNA cycle sequencing --- p.42 / Chapter 3.2.2.3 --- Sequence analyses --- p.43 / Chapter 3.2.3 --- Screening of LeSSA (Inducible HSP70) --- p.45 / Chapter 3.2.3.1 --- PCR screening of LeSSA by degenerate primers and LeSSB specific primers --- p.45 / Chapter 3.2.3.2 --- Screening of LeSSA from cDNA library by hybridization --- p.49 / Chapter 3.3 --- Results --- p.51 / Chapter 3.3.1 --- Sequence analyses --- p.51 / Chapter 3.3.1.1 --- LeSSB --- p.51 / Chapter 3.3.1.2 --- LeMge1 --- p.57 / Chapter 3.3.1.3 --- LeSTI1 --- p.62 / Chapter 3.3.1.4 --- LeTCP1β --- p.69 / Chapter 3.3.1.5 --- LeTCP1γ --- p.74 / Chapter 3.3.2 --- Failure of isolating LeSSA (Inducible HSP70) --- p.80 / Chapter 3.4 --- Discussion --- p.82 / Chapter 3.4.1 --- Sequence analyses --- p.82 / Chapter 3.4.2 --- Screening of LeSSA --- p.84 / Chapter Chapter Four --- Characterization of stress genes upon different stresses / Chapter 4.1 --- Introduction --- p.86 / Chapter 4.2 --- Materials and Methods --- p.87 / Chapter 4.2.1 --- Strain and culture conditions --- p.87 / Chapter 4.2.2 --- Stress treatments --- p.87 / Chapter 4.2.3 --- Isolation of total RNAs --- p.87 / Chapter 4.2.4 --- Reverse transcriptase-polymerase chain reaction (RT-PCR) --- p.88 / Chapter 4.2.4.1 --- Reverse transcription --- p.88 / Chapter 4.2.4.2 --- PCR amplification by specific primers of stress genes --- p.89 / Chapter 4.2.5 --- Northern blot analyses --- p.91 / Chapter 4.2.5.1 --- RNA fractionation by formaldehyde gel electrophoresis --- p.91 / Chapter 4.2.5.2 --- Northern blotting --- p.91 / Chapter 4.2.5.3 --- Preparation of probes --- p.92 / Chapter 4.2.5.4 --- Hybridization and stringency washes --- p.93 / Chapter 4.2.6 --- Isolation of total protein --- p.94 / Chapter 4.2.7 --- Quantification of protein by Bradford method --- p.95 / Chapter 4.2.8 --- Western blot analyses --- p.95 / Chapter 4.2.8.1 --- Sodium dodecyl sulfate ´ؤ polyacrylamide gel electrophoresis (SDS-PAGE) --- p.95 / Chapter 4.2.8.2 --- Western blotting --- p.96 / Chapter 4.2.8.3 --- Immunodetection --- p.98 / Chapter 4.2.8.4 --- ECL detection --- p.98 / Chapter 4.3 --- Results --- p.99 / Chapter 4.3.1 --- Reverse transcriptase-polymerase chain reaction (RT-PCR) --- p.99 / Chapter 4.3.2 --- Northern blot hybridization --- p.106 / Chapter 4.3.2.1 --- Establishing an internal control --- p.106 / Chapter 4.3.2.2 --- Dig-labelling of stress genes --- p.106 / Chapter 4.3.2.3 --- Northern blot hybridizaton of stress genes --- p.106 / Chapter 4.3.3 --- Western blot hybridization --- p.111 / Chapter 4.4 --- Discussions --- p.113 / Chapter Chapter Five --- General Discussions --- p.118 / References --- p.123
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Expressed sequence tags and functional characterization of fruiting genes during fruit body development of edible mushroom Lentinula edodes.January 2000 (has links)
by Ng Tak Pan. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2000. / Includes bibliographical references (leaves 151-168). / Abstracts in English and Chinese. / Abstract --- p.i / Acknowledgements --- p.iv / Abbreviations --- p.v / Table of Contents --- p.vi / List of Figures --- p.x / List of Tables --- p.xiii / Chapter Chapter One --- Literature Review / Chapter 1.1 --- Introduction --- p.1 / Chapter 1.2 --- Nutraceutical and Medicinal Properties of L. edodes --- p.4 / Chapter 1.2.1 --- Nutritional value --- p.4 / Chapter 1.2.2 --- Hypocholesterolaemic Effect --- p.5 / Chapter 1.2.3 --- Anti-tumor Effect --- p.5 / Chapter 1.2.4 --- Anti-viral Effect --- p.6 / Chapter 1.2.5 --- Immunopotentiating Effect --- p.6 / Chapter 1.3 --- Life cycle of L. edodes --- p.7 / Chapter 1.4 --- Environmental factors affecting mycelial growth and fruit body --- p.11 / Chapter 1.4.1 --- Nutrient requirement --- p.11 / Chapter 1.4.2 --- Physical and chemical factors --- p.12 / Chapter 1.5 --- Molecular studies on mushroom development --- p.15 / Chapter 1.5.1 --- Mating-type genes --- p.15 / Chapter 1.5.2 --- Hydrophobins --- p.19 / Chapter 1.5.3 --- Fruiting regulatory genes --- p.23 / Chapter 1.5.4 --- Molecular studies on fruit body development of I. edodes --- p.24 / Chapter 1.5.4.1 --- Identification of L. edodes genes --- p.24 / Chapter 1.5.4.2 --- Functional characterization of L. edodes genes --- p.27 / Chapter 1.5.4.3 --- Transformation in L. edodes --- p.28 / Chapter Chapter Two --- Expressed Sequence Tags (ESTs) of L. edodes / Chapter 2.1 --- Introduction --- p.30 / Chapter 2.2 --- Materials and Methods --- p.33 / Chapter 2.2.1 --- Generation of expressed sequence tag --- p.33 / Chapter 2.2.1.1 --- Mushroom cultivation and RNA extraction --- p.33 / Chapter 2.2.1.2 --- Construction of primordium cDNA library --- p.34 / Chapter 2.2.1.3 --- Mass excision of pBK-CMV plasmid --- p.34 / Chapter 2.2.1.4 --- Random screening of mass excised cDNA clone --- p.38 / Chapter 2.2.1.5 --- Isolation of recombinant plasmid --- p.38 / Chapter 2.2.1.6 --- Generation of 3´ة end partially sequence --- p.39 / Chapter 2.2.1.7 --- Sequence analysis --- p.40 / Chapter 2.2.2 --- Reverse dot-blot Hybridization --- p.40 / Chapter 2.2.2.1 --- PCR amplification of cDNA clone --- p.40 / Chapter 2.2.2.2 --- Membrane preparation --- p.40 / Chapter 2.2.2.3 --- cDNA probe preparation --- p.41 / Chapter 2.2.2.4 --- Hybridization --- p.42 / Chapter 2.2.2.5 --- Stringent washing and autoradiography --- p.43 / Chapter 2.3 --- Results --- p.44 / Chapter 2.3.1 --- Construction of primordium cDNA library --- p.44 / Chapter 2.3.2 --- Screening of recombinant clone --- p.44 / Chapter 2.3.3 --- Isolation and reconfirmation of recombinant plasmid --- p.46 / Chapter 2.3.4 --- Generation of EST --- p.47 / Chapter 2.3.5 --- EST identity --- p.47 / Chapter 2.3.6 --- Reverse dot-blot hybridization --- p.56 / Chapter 2.3.7 --- Analysis of hybridization signal --- p.60 / Chapter 2.4 --- Discussion --- p.71 / Chapter Chapter Three --- Sequence Analysis and Transcriptional Profiling of Genes Encoding GTP-binding Proteins / Chapter 3.1 --- Introduction --- p.78 / Chapter 3.2 --- Materials and Methods --- p.82 / Chapter 3.2.1 --- Sequence manipulation --- p.82 / Chapter 3.2.2 --- Northern blot hybridization --- p.82 / Chapter 3.2.2.1 --- RNA fragmentation by formaldehyde gel electrophoresis --- p.82 / Chapter 3.2.2.2 --- RNA fixation by capillary method --- p.83 / Chapter 3.2.2.3 --- Probe preparation --- p.84 / Chapter 3.2.2.4 --- Hybridization --- p.85 / Chapter 3.2.2.5 --- Stringent washing and autoradiography --- p.85 / Chapter 3.2.3 --- Real-Time SYBR Green RT-PCR --- p.85 / Chapter 3.2.3.1 --- Primer design --- p.85 / Chapter 3.2.3.2 --- RT-PCR reaction --- p.86 / Chapter 3.3 --- Results --- p.88 / Chapter 3.3.1 --- Sequence manipulation --- p.88 / Chapter 3.3.2 --- Transcriptional analysis --- p.103 / Chapter 3.4 --- Discussion --- p.108 / Chapter 3.4.1 --- Heterotrimeric G proteins --- p.108 / Chapter 3.4.2 --- Ras-related protein Rab7 --- p.112 / Chapter 3.4.3 --- Developmentally regulated GTP-binding protein --- p.113 / Chapter Chapter Four --- Yeast Complementation and Over-expression tests of Le.Gβ1 and Le.Gγ1 / Chapter 4.1 --- Introduction --- p.115 / Chapter 4.2 --- Materials and Methods --- p.120 / Chapter 4.2.1 --- "Yeast strains, media and yeast vectors" --- p.120 / Chapter 4.2.2 --- Primer design --- p.121 / Chapter 4.2.3 --- RT-PCR Amplification of Le.Gβ1 and Le.Gγ1 --- p.121 / Chapter 4.2.4 --- Purification of PCR products --- p.122 / Chapter 4.2.5 --- Enzymatic digestion and purification --- p.122 / Chapter 4.2.6 --- Ligation and E. coli transformation --- p.122 / Chapter 4.2.7 --- PCR screening of E. coli transformants --- p.124 / Chapter 4.2.8 --- Plasmids extraction --- p.124 / Chapter 4.2.9 --- Yeast transformation --- p.124 / Chapter 4.2.10 --- Mating test --- p.125 / Chapter 4.3 --- Results --- p.129 / Chapter 4.3.1 --- Cloning of Le.Gβ1 and Le.Gγ1 --- p.129 / Chapter 4.3.2 --- Yeast transformation --- p.129 / Chapter 4.3.3 --- Mating test --- p.130 / Chapter 4.4 --- Discussion --- p.141 / Chapter Chapter Five --- General Discussion --- p.144 / References --- p.151
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