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Molecular authentication of three Chinese herbs: baiying, baihuasheshecao and chuanlianzi.January 2005 (has links)
Li Ming. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2005. / Includes bibliographical references (leaves 146-161). / Abstracts in English and Chinese. / ACKNOWLEDGEMENTS --- p.I / ABSTRACT --- p.III / TABLE OF CONTENTS --- p.VII / LIST OF FIGURES AND TABLES --- p.XIII / LIST OF ABBREVIATIONS --- p.XX / Chapter CHAPTER ONE --- LITERATURE REVIEW --- p.1 / Chapter 1.1 --- Authentication of Chinese medicines --- p.1 / Chapter 1.1.1 --- The need for authentication of Chinese medicines --- p.1 / Chapter 1.1.2 --- Traditional methods for authentication --- p.2 / Chapter 1.1.3 --- Molecular methods for authentication --- p.4 / Chapter 1.1.3.1 --- DNA fingerprinting --- p.5 / Chapter 1.1.3.2 --- DNA sequencing --- p.6 / Chapter 1.1.3.2.1 --- Choosing a suitable region for DNA sequencing --- p.7 / Chapter 1.1.3.2.2 --- Chloroplast irnL-trnF region --- p.9 / Chapter 1.1.3.2.3 --- Complete sequence of ITS rDNA region --- p.10 / Chapter 1.1.3.2.4 --- 5S rDNA intergenic spacer --- p.11 / Chapter 1.1.3.2.5 --- Calculation of similarities among sequences --- p.12 / Chapter 1.1.3.2.6 --- Construction methods of phylograms --- p.12 / Chapter 1.2 --- The need for molecular authentication of three medicinal herbs --- p.14 / Chapter 1.2.1 --- The herb Baiying --- p.14 / Chapter 1.2.1.1 --- The poisoning case reported in Hong Kong --- p.14 / Chapter 1.2.1.2 --- The identity of genuine Baiying --- p.15 / Chapter 1.2.1.3 --- Morphological characters of the herb Baiying --- p.15 / Chapter 1.2.1.4 --- Medicinal values of Baiying --- p.17 / Chapter 1.2.1.5 --- Xungufeng as the adulterant of Baiying --- p.17 / Chapter 1.2.1.5.1 --- The toxic chemicals aristolochic acids --- p.18 / Chapter 1.2.1.6 --- The need for molecular authentication of Baiying --- p.19 / Chapter 1.2.2 --- The herb Baihuasheshecao --- p.19 / Chapter 1.2.2.1 --- The identity of Baihuasheshecao --- p.19 / Chapter 1.2.2.2 --- Morphological characters of the herb Baihuasheshecao --- p.20 / Chapter 1.2.2.3 --- Medicinal uses --- p.23 / Chapter 1.2.2.4 --- Chemical profile --- p.24 / Chapter 1.2.2.5 --- Adulterants of Baihuasheshecao --- p.24 / Chapter 1.2.2.6 --- Chemical studies of H. diffusa and H. corymbosa --- p.25 / Chapter 1.2.2.7 --- Existing methods for authentication --- p.26 / Chapter 1.2.2.8 --- The need for molecular authentication of Baihuasheshecao --- p.28 / Chapter 1.2.3 --- The herb Chuanlianzi --- p.28 / Chapter 1.2.3.1 --- The identity of Chuanlianzi --- p.28 / Chapter 1.2.3.2 --- Medicinal values --- p.29 / Chapter 1.2.3.3. --- The bioactive chemical --- p.31 / Chapter 1.2.3.4 --- Kulianzi as the substitute of Chuanlianzi --- p.31 / Chapter 1.2.3.5 --- Poisoning cases reported due to ingestion of Kulianzi --- p.32 / Chapter 1.2.3.6 --- Comparative studies of Chuanlianzi and Kulianzi --- p.32 / Chapter 1.2.3.7 --- The need for molecular authentication of Chuanlianzi --- p.33 / Chapter CHAPTER TWO --- OBJECTIVE --- p.35 / Chapter CHAPTER THREE --- MATERIALS AND METHODS --- p.36 / Chapter 3.1 --- Plant and herb samples --- p.36 / Chapter 3.2 --- Total DNA extraction --- p.48 / Chapter 3.2.1 --- Cetyltriethylammonium bromide extraction --- p.48 / Chapter 3.2.2 --- Commercial kit extraction --- p.49 / Chapter 3.3 --- DNA amplification --- p.50 / Chapter 3.4 --- DNA fingerprinting --- p.51 / Chapter 3.4.1 --- DNA concentration determination --- p.51 / Chapter 3.4.2 --- ISSR fingerprinting --- p.52 / Chapter 3.5 --- Agarose gel electrophoresis --- p.53 / Chapter 3.6 --- Purification of PCR product --- p.53 / Chapter 3.7 --- Cloning of PCR product --- p.54 / Chapter 3.7.1 --- Ligation --- p.54 / Chapter 3.7.2 --- Transformation --- p.55 / Chapter 3.7.3 --- Cell cultivation --- p.55 / Chapter 3.7.4 --- Plasmid extraction --- p.55 / Chapter 3.7.5 --- Insert confirmation --- p.56 / Chapter 3.8 --- Determination of DNA concentration --- p.56 / Chapter 3.9 --- DNA sequencing --- p.57 / Chapter 3.9.1 --- Cycle sequencing --- p.57 / Chapter 3.9.2 --- Purification of cycle sequencing products --- p.57 / Chapter 3.9.3 --- DNA analysis --- p.58 / Chapter 3.10 --- Sequence analysis --- p.58 / Chapter CHAPTER FOUR --- MOLECULAR AUTHENTICATION OF BAIYING --- p.59 / Chapter 4.1 --- Results --- p.59 / Chapter 4.1.1 --- Sequence alignment --- p.59 / Chapter 4.1.2 --- Percentage similarity analysis --- p.68 / Chapter 4.1.3 --- Phylogram study --- p.71 / Chapter 4.2 --- Discussion --- p.79 / Chapter 4.2.1 --- Evaluation of chloroplast trnL-trnF region in differentiation of Baiying and Xungufeng --- p.79 / Chapter 4.2.2 --- Molecular authentication of Baiying --- p.80 / Chapter 4.3 --- Conclusion --- p.81 / Chapter CHAPTER FIVE --- MOLECULAR AUTHENTICATION OF BAIHUASHESHECAO --- p.82 / Chapter 5.1 --- Results --- p.82 / Chapter 5.1.1 --- ITS region used for DNA sequencing --- p.82 / Chapter 5.1.2 --- Sequence alignment --- p.82 / Chapter 5.1.3 --- Percentage similarity analysis --- p.88 / Chapter 5.1.4 --- Phylogram study --- p.90 / Chapter 5.2 --- Discussion --- p.98 / Chapter 5.2.1 --- Evaluation of complete sequence of ITS region in differentiation of Hedyotis species --- p.98 / Chapter 5.2.2 --- Molecular authentication of retailed Baihuasheshecao --- p.99 / Chapter 5.2.3 --- Analysis of conflicting data between this study and published results --- p.99 / Chapter 5.2.3.1 --- Comparison of ITS-1 region --- p.101 / Chapter 5.2.3.2 --- Comparison of ITS-2 region --- p.104 / Chapter 5.2.3.3 --- Proposed reasons for the conflicting data --- p.108 / Chapter 5.3 --- Conclusion --- p.109 / Chapter CHAPTER SIX --- MOLECULAR AUTHENTICATION OF CHUANLIANZI --- p.110 / Chapter 6.1 --- Results --- p.110 / Chapter 6.1.1 --- DNA sequencing --- p.110 / Chapter 6.1.1.1 --- Complete sequence of ITS region used for DNA sequencing --- p.110 / Chapter 6.1.1.1.1 --- Sequence alignment --- p.111 / Chapter 6.1.1.1.2 --- Percentage similarity analysis --- p.113 / Chapter 6.1.1.2 --- 5S rDNA intergenic spacer used for DNA sequencing --- p.113 / Chapter 6.1.1.2.1 --- Sequencing alignment --- p.114 / Chapter 6.1.1.2.2 --- Percentage similarity analysis --- p.122 / Chapter 6.1.1.2.3 --- Phylogram study --- p.128 / Chapter 6.1.2 --- ISSR fingerprinting --- p.136 / Chapter 6.2 --- Discussion --- p.138 / Chapter 6.2.1 --- DNA sequencing results --- p.138 / Chapter 6.2.2. --- ISSR fingerprinting results --- p.139 / Chapter 6.2.3 --- Investigation of the identity of retailed Chuanlianzi --- p.140 / Chapter 6.2.4 --- Taxonomic interpretation for Melia species --- p.141 / Chapter 6.2.5 --- Kulianzi involved in this study --- p.141 / Chapter 6.3 --- Conclusion --- p.141 / Chapter CHAPTER SEVEN --- CONCLUSION --- p.143 / BILBIOGRAPHY --- p.146 / APPDENDIX - MATERIAL PREPARATION --- p.162
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