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Bacterial Control of Mosquitoes and Black Flies: Biochemistry, Genetics and Applications of Bacillus thuringiensis israelensis and Bacillus sphaericus PDF

363 Pages·1991·9.955 MB·English
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Bacterial Control of Mosquitoes & Black Flies Bacterial Control of Mosquitoes & Black Flies Biochemistry, Genetics & Applications of Bacillus thuringiensis israelensis and Bacillus sphaericus Huguette de Batjac DonaldJ. Sutherland EDITORS UNWIN HYMAN London © Rutgers University Press, 1990 Softcover reprint of the hardcover 1s t edition 1990 This book is copyright under the Berne Convention. No reproduction without permission. All rights reserved. ISBN-13: 978-94-011-5969-2 e-ISBN-13: 978-94-011-5967-8 DOT: 10.1007/978-94-011-5967-8 British Library Cataloguing in Publication Data Information available Library of Congress Cataloging-in-Publication Data Bacterial control of mosquitoes and black flies: biochemistry genetics, and applications of Bacillus thuringiensis israelensis and Bacillus sphaericus / H. de Barjac, D. J. Sutherland, editors. p. cm. Includes bibliographic references 1. Bacillus thuringiensis. 2. Bacillus sphaericus. 3. Mosquitoes-biological control. 4. Simuliidae-Biological control. I. Barjac, Huguette de. II. Sutherland, Donald J. QR82.B3B34 1990 614.4'32-dc20 89·70095 CIP Contents Contributors xv Foreword xvii Preface xix PART! Bacillus thuringiensis subsp. israelensis (B.t.i.) 1 Discovery of Bacillus thuringiensis israelensis 3 Joel Margalit 1. 1 Introduction 1.2 Geography, Climate, and Environmental Conditions 1.3 Detection and Isolation 2 Characterization and Prospective View of Bacillus thuringiensis israelensis 10 Huguette de Barjac 3 Parasporal Body of Bacillus thuringiensis israelensis: Structure, Protein Composition, and Toxicity 16 Brian A. Federici, Peter Liithy, and Jorge E. Ibarra 3.1 Introduction 3.2 Synthesis 3.3 Structure 3.4 Purification and Solubilization 3.5 Protein Composition 3.6 Toxicity 3.6.1 Intact or Solubilized Parasporal Body 3.6.2 The 27-kDa Protein 3.6.3 The 65-kDa Protein 3.6.4 The 128-and 135-kDa Proteins 3.6.5 Synergistic Interaction of Toxic Pro- teins vi / Contents 3.7 Mosquiticidal Parasporal Bodies of Other Subspecies of B. thuringiensis 3.8 Discussion 4 Mechanism of Action of Bacillus thuringiensis israelensis Parasporal Body 45 Chris N. Chilcott, Barbara H. Knowles, David]. EUar, and Francis A. Drobniewski 4.1 Introduction 4.2 Mechanism of Action 4.2.1 Receptors 4.2.2 Toxin Structure and Membrane Inser tion 4.2.3 Colloid-Osmotic Lysis Theory 4.2.4 Toxin Oligomerization 4.3 Discussion 5 Genetics of Bacillus thuringiensis israelensis 66 VaithiIingam Sekar 5.1 Introduction 5.2 Genetic Exchange Systems 5.2.1 Transformation 5.2.2 Transduction 5.2.3 Plasmid Transfer 5.3 Plasmids and Crystal Toxin Production 5.3.1 Plasmids and Plasmid Curing Analysis 5.3.2 Location of the 8-endotoxin Gene 5.4 Cloning of the Crystal Toxin Gene( s ) 5.s Genetics and Biochemistry of the Crystal Toxin 5.6 Conclusions 6 Cloning of Bacillus thuringiensis israelensis Mosquito Toxin Genes 78 Thomas M. Boyle and Donald H. Dean 6. 1 Introduction 6.2 Early Confusion in CloningB.t.i. Toxin Protein Genes 6.3 Current Picture of B. t. i. Toxin Protein Genes 6.4 Discussion Contents / vii 7 Transfer of the Bacillus tburingiensis israelensis Mosquiticidal Toxin Gene into Mosquito Larval Food Sources 94 Kathleen C. Raymond, Hiroetsu Wabiko, Robert M. Faust, and Lee A. Bulla, Jr. 7.1 Introduction 7.2 Assignment of Toxic Activity 7.3 Cloning of the Mosquito Toxin Gene 7.4 Mosquito and Black Fly Larval Food Sources 7.5 Introduction of the Mosquito Toxin Gene into Larval Food Sources 7.6 Safety Aspects 8 Potential for Improved Formulations of Bacillus tburingiensis israelensis through Standardization and Fermentation Development 110 Howard T. Dulmage,Jose A. Correa, and Gabriel Gallegos·Moraies 8.1 Introduction 8.2 History 8.2.1 Background 8.2.2 Discovery and Early History 8.2.3 Standardizing and Measuring B. t. Pro- ducts 8.2.3.1 Early Concepts 8.2.3.2 The Spore Count 8.3 Bioassays and the International Unit 8.3.1 Philosophical Differences between Bioassays of Chemical and Microbial Insecticides 8.3.2 Bioassays and the LCso 8.3.3 Choice of Insect Species for Bioassay 8.3.4 The International Unit 8.3.5 The de Barjac Protocol for B. t. i.; Its Design and Principles 8.3.5.1 Preparation of Stock Suspension of the Standard 8.3.5.2 Preparation of Suspension of the Test Samples 8.3.5.3 Specifications for Larvae Used in Assay 8.3.5.4 Reading the Assay 8.3.5.5 Evaluations of Assays and Their Reproducibility viii / Contents 8.4 Activity Ratios 8.4.1 Definition of Activity Ratios 8.4.2 Use and Significance of Activity Ratios 8.4.2.1 TnlHv Ratios of subspecies kurstaki 8.4.2.2 Cq/A a Ratios of subspecies israelensis 8.4.2.3 Reproducibility of Activity Ratios in Fermentation Studies 8.5 Potential for Improvements in Production of the B. t i. Toxin 8.5.1 Fermentation 8.5.1.1 Strain Selection 8.5.1.2 Aeration 8.5.1.3 Selection of Nutrients 8.5.2 Recovery 8.5.2.1 Spore-crystal Formulations 8.5.2.2 Viable Spore-free Formulations 8.6 Summary 8.6.1 Bioassays and the Production of B. t 8.6.2 Bioassays and the Future of B. t 9 Activity, Field Efficacy, and Use of Bacillus thuringiensis israelensis against Mosquitoes 134 MirS. Mulla 9.1 Introduction 9.2 Laboratory Evaluation 9.2.1 Screening Procedures 9.2.2 Preliminary Screening 9.2.3 Species Specificity 9.2.4 Instar Susceptibility 9.2.5 Biotic and Abiotic Factors Influencing Activity 9.2.6 Delayed Effects 9.3 Field Evaluation and Efficacy Trials 9.3.1 Spectrum of Field Activity 9.3.1.1 Floodwater Mosquitoes 9.3.1.2 Anopheles Mosquitoes 9.3.1.3 Culex Mosquitoes 9.3.2 Persistence and Recycling Contents / ix 9.4 Impact on Nontarget Organisms 9.5 Microbial Larvicides in Integrated Control of Mosquitoes 10 Progress in the Biological Control of Black Flies with Bacillus thuringiensis israeiensis, with Emphasis on Temperate Climates 161 Daniel P. Molloy 10.1 Nature of the Black Fly Problem in Temperate Climates 10.2 Advent of B. t. i. 10.3 Trends in Recent Research Efforts 10.4 Factors Affecting the Efficacy of B. t. i. against Black Flies 10.4.1 Environmental Parameters 10.4.1.1 Discharge 10.4.1.2 Stream Profile 10.4.1.3 Turbidity 10.4.1.4 Pollutants 10.4.1.5 Water Temperature 10.4.1.6 pH 10.4.1.7 Degree of Vertical Mixing in the Water Column 10.4.1.8 Reduced Water Velocity Due to Negative Relief 10.4.1.9 Attachment of B. t. i. to Benthic Sub strates/Sediments 10.4.1.10 Other Factors 10.4.2 Black Fly Parameters 10.4.2.1 Larval Age 10.4.2.2 Species 10.4.2.3 Feeding Behavior 10.4.3 Formulation Parameters 10.4.3.1 Particle Size 10.4.3.2 Powdered versus liquid Formulations 10.4.3.3 Formulation Additives 10.4.4 Treatment Parameters 10.4.4.1 Concentration x / Contents 10.4.4.2 Duration of Application 10.4.4.3 Preparation of Powdered Formulations 10.5 Lack of Correlation in Formulation Potency against Black Flies and Mosquitoes 10.6 Effect of B. t. i. on Black Fly Populations 10.7 Effect of B. t. i. on Nontarget Populations 10.7.1 Toxicity 10.7.2 Inducement of Drift 10.8 Treatment and Assessment Methodologies 10.8.1 Discharge Calculation 10.8.2 Treatment 10.8.3 Assessments of Black Fly Mortality 10.9 Product/Formulation Improvement 10.10 Area-control Programs 10.11 Possibility of Resistance 10.12 Research Priorities in Temperate Climates 10.13 Conclusions 11 Use ofB acillus thuringiensis israelensis for Onchocerciasis Control in West Africa 187 Pierre Guillet, Daniel C. Kurtak, Bernard Philippon, and Rolf Meyer 11. 1 Introduction 11.2 The Search for Suitable B. t. i. Formulations 11.3 Operational Use of B. t. i. in the OCP 11.4 Discussion and Prospects 12 Mammalian Safety of Bacillus thuringiensis israelensis 202 Joel P. Siegel and John A. Shadduck 12.1 Introduction 12.2 Source and Preparation of Cultures 12.3 Results and Discussion 12.3.1 Oral and Intraperitoneal Administration 12.3.2 Subcutaneous Injection 12.3.3 Aerosol Exposure 12.3.4 Intracerebral Injection 12.3.5 Clearance 12.3.6 Ocular Irritancy 12.4 Summary 12.5 Summary of Other Studies Contents / xi PART 2 Bacillus spbaericus 13 Introduction to the Study of Bacillus spbaericus as a Mosquito Control Agent 221 Samuel Singer 13.1 Introduction 13.2 History of Extant Strains 13.3 Future Strains 14 Classification of Bacillus spbaericus Strains and Comparative Toxicity to Mosquito Larvae 228 Huguette de Barjac 14.1 Introduction 14.2 Different Approaches to the Classification and Characterization of Toxic Strains 14.3 Comparative Toxicity of Various Serotypes 14.4 Distribution of the Larvicidal Strains and Activity Ratios 15 The Mosquito Larval Toxin of Bacillus spbaericus 237 Elizabeth W. Davidson and Allan A. Yousten 15.1 Location of the Toxin in the Bacterial Cell 15.2 Biochemical Nature of the Toxin 15.3 Pathology in the Host 15.4 Host Range of the Toxin 15.5 Pathology of the Toxin in Cultured Cells 15.6 Comparison of the B. spbaericus Toxin with the B. t. i. Toxin 16 Genetics of Bacillus spbaericus 256 William F. Burke,Jr., and Karen A Orzech 16.1 Introduction 16.2 Evidence of Genetic Heterogeneity within the Species B. spbaericus 16.3 Naturally Occurring Antibiotic Resistances in B. spbaericus 16.4 Auxotrophic Mutants of B. spbaericus 16.5 Transformation of B. spbaericus with Plasmid DNA 16.6 B. spbaericus Mutants with limited Restriction Endonuclease Activity 16.7 Evidence for the Existence ofaBsp 1593 Modification System

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