Wang Jian Bin. / Thesis (Ph.D.)--Chinese University of Hong Kong, 1993. / Includes bibliographical references (leaves 117-131). / ACKNOWLEDGEMENTS --- p.ii / ABSTRACT --- p.x / Chapter PART I. --- GENERAL INTRODUCTION --- p.4 / Chapter PART II. --- LITERATURE REVIEW --- p.6 / Chapter A. --- The structure and functions of insect Malpighian tubules --- p.6 / Chapter I. --- The excretory system of insects --- p.6 / Chapter 1. --- Morphology of Malpighian tubules --- p.6 / Chapter 2. --- Common types of Malpighian tubule system --- p.7 / Chapter 3. --- Morphology of hindgut --- p.8 / Chapter II. --- Structure of insect Malpighian tubules --- p.9 / Chapter 1. --- General organization of the Malpighian tubules --- p.9 / Chapter 2. --- Structure of the principal cell --- p.10 / Chapter 3. --- The structure of other cell types --- p.14 / Chapter 4. --- The cryptonephridial systems in larvae of Lepidoptera and Coleoptera --- p.16 / Chapter III. --- Functions of insect Malpighian tubules --- p.18 / Chapter 1. --- Mechanism of fluid secretion by Malpighian tubules --- p.18 / Chapter 1.1. --- Ion transport --- p.18 / Chapter 1.2. --- Fluid transport --- p.19 / Chapter 2. --- Active transport of organic compounds by Malpighian tubules --- p.19 / Chapter 2.1. --- Organic anions --- p.19 / Chapter 2.2. --- Organic cations --- p.20 / Chapter 3. --- Resporptive processes in Malpighian tubules --- p.20 / Chapter 3.1. --- KC1 resorption --- p.20 / Chapter 3.2. --- Reabsorption of sugars --- p.21 / Chapter 4. --- The passive permeability of Malpighian tubules --- p.21 / Chapter B. --- The biology and mode of action of Bacillus thuringiensis --- p.23 / Chapter I. --- Introduction --- p.23 / Chapter II. --- Background --- p.23 / Chapter III. --- "Cytology of germination, outgrowth and sporulation" --- p.24 / Chapter IV. --- Bacillus thuringiensis and its toxins --- p.26 / Chapter V. --- Histopathological effects of Bacillus thuringiensis δ-endotoxin on Lepidopterous larva --- p.29 / Chapter VI. --- Mode of action of Bacillus thuringiensis δ-endotoxin --- p.32 / Chapter C. --- The biology and pathological effects of microsporidian protozoa --- p.36 / Chapter I. --- Life cycle of microsporidian protozoa --- p.36 / Chapter II. --- Germination of microsporidian protozoa --- p.37 / Chapter III. --- The fine structure of microsporidian protozoa --- p.38 / Chapter IV. --- Mass production and storage --- p.42 / Chapter V. --- Pathology of microsporidian protozoa --- p.44 / Chapter PART III. --- LIGHT AND ELECTRON MICROSCOPIC STUDIES OF THE MALPIGHIAN TUBULES OF PIERIS CANIDIA LARVA (LEPIDOPTERA) --- p.48 / Summary --- p.48 / Introduction --- p.48 / Materials and methods --- p.49 / Results --- p.50 / Discussion --- p.53 / Chapter PART IV. --- HISTOCHEMICAL STUDIES ON THE PIERIS CANIDIA LARVAL MALPIGHIAN TUBULES --- p.58 / Summary --- p.58 / Introduction --- p.59 / Materials and methods --- p.60 / Results --- p.52 / Discussion --- p.66 / Chapter PART V. --- SEPARATION AND PURIFICATION OF PARASPORAL CRYSTALS OF BACILLUS THURINGIENSIS VAR. KURSTAKI --- p.70 / Summary --- p.70 / Introduction --- p.70 / Materials and methods --- p.74 / Results --- p.77 / Discussion --- p.77 / Chapter PART VI. --- HISTOPATHOLOGICAL EFFECTS OF BACILLUS THURINGIENSIS VAR. KURSTAKI δ-ENDOTOXIN ON THE MALPIGHIAN TUBULES OF PIERIS CANIDIA LARVA --- p.79 / Summary --- p.79 / Introduction --- p.79 / Materials and methods --- p.81 / Results --- p.83 / Discussion --- p.86 / Chapter PART VII. --- THE FINE STRUCTURE OF A MICROSPORIDIAN NOSEMA POLYVORA FROM CABBAGE WHITE PIERIS CANIDIA --- p.92 / Summary --- p.92 / Introduction --- p.92 / Materials and methods --- p.94 / Results --- p.94 / Discussion --- p.97 / Chapter PART VIII. --- HISTOPATHOLOGICAL EFFECTS OF NOSEMA POLYVORA ON THE MALPIGHIAN TUBULES OF PIERIS CANIDIA LARVA --- p.103 / Summary --- p.103 / Introduction --- p.103 / Materials and methods --- p.105 / Results --- p.105 / Discussion --- p.107 / Chapter PART IX. --- GENERAL DISCUSSION --- p.111 / Chapter PART X. --- CONCLUSION AND SUMMARY --- p.115 / REFERENCES --- p.117 / FIGURES AND TABLES --- p.132