Natural and Engineered Resistance to Plant Viruses

by Carr; Loebenstein

• ISBN13: 9780123745255
• ISBN10: 012374525X
• Edition: 1st
• Format: Hardcover
• Copyright: 2010-04-30
• Publisher: Elsevier Science

Summary

Viruses are a huge threat to agriculture. In the past, viruses used to be controlled using conventional methods, such as crop rotation and destruction of the infected plants, but now there are more novel ways to control them. This volume focuses on topics that must be better understood in order to foster future developments in basic and applied plant virology. These range from virus epidemiology and virus/host co-evolution and the control of vector-mediated transmission through to systems biology investigations of virus-cell interactions. Other chapters cover the current status of signalling in natural resistance and the potential for a revival in the use of cross-protection, as well as future opportunities for the deployment of the under-utilized but highly effective crop protection strategy of pathogen-derived resistance. Key features:* Contributions from leading authorities * Informs and updates on all the latest developments in the field

Table of Contents

Preface	p. vii
The Coevolution of Plants and Viruses: Resistance and Pathogenicity	p. 1
Introduction	p. 3
Virus Infection and Host Defenses Reciprocally Affect the Fitness of Host and Virus	p. 4
The Outcome of Plant-Virus Interactions Depends on the Plant and Virus Genotypes Involved	p. 6
Genetic Variation of Resistance and Pathogenicity	p. 13
Costs of Pathogenicity and Resistance Durability	p. 20
Concluding Remarks	p. 23
Acknowledgments	p. 24
References	p. 24
Assessment of the Benefits and Risks for Engineered Virus Resistance	p. 33
Introduction	p. 34
The Cost of Plant-Virus Infection	p. 35
Antiviral Strategies Not Based on Genetic Engineering	p. 36
Transgene-Mediated Resistance	p. 38
Refinements to Engineering Resistance	p. 39
Concepts of Risk Assessment	p. 42
Potential Risks Associated with Virus-Resistant Transgenic Plants	p. 43
Weighing the Benefits and Risks. Taking into Account Efficacy, Durability, and Safety	p. 46
Conclusions	p. 48
References	p. 49
Signaling in Induced Resistance	p. 57
What is Induced Resistance?	p. 59
Signaling in Genetically Determined Resistance	p. 60
Low Molecular Weight Chemical Signals in Induced Resistance	p. 64
RNA Silencing and Induced Resistance	p. 72
Protein Factors in Signaling or Resistance Responses	p. 84
Concluding Thoughts	p. 102
Acknowledgments	p. 103
References	p. 103
Global Genomics and Proteomics Approaches to Identify Host Factors as Targets to Induce Resistance Against Tomato Bushy Stunt Virus	p. 123
Introduction	p. 125
Genome-Wide Screens for Systematic Identification of Host Factors Affecting TBSV Replication	p. 130
Proteomics-Based Screens for Systematic Identification of Host Factors Affecting TBSV Replication	p. 133
Grouping of Host Factors and Identification of Networks Involved in TBSV Replication	p. 137
Validation of Host Factors in a Plant Host and Induction of Resistance Against TBSV	p. 167
Summary and Outlook	p. 168
Acknowledgments	p. 169
References	p. 169
Resistance to Aphid Vectors of Virus Disease	p. 179
Resistance to Aphids	p. 180
Natural Resistance	p. 181
Engineered Resistance	p. 195
Concluding Remarks	p. 198
Acknowledgments	p. 201
References	p. 201
Cross-Protection: A Century of Mystery	p. 211
Introduction	p. 212
General Remarks	p. 213
History of Cross-Protection	p. 215
Applications	p. 218
Mechanism(s) of Cross-Protection	p. 227
Protection Phenomena Involving Subviral Agents	p. 238
Concluding Thoughts	p. 242
Acknowledgments	p. 244
References	p. 244
Index	p. 265
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