Viral Genes and Plant Pathogenesis

The chapters in this book represent detailed versions of papers presented at the Symposium on Viral Genes and Plant Pathogenesis held at Lexington, Kentucky on October 16 and 17, 1989. In selecting topics and authors, we attempted to have represented a spectrum of systems which are at the forefront of research on plant virus genes and gene products, particularly as they relate to plant disease. The book also contains pertinent discussion of the papers presented at the symposium, as well as summaries, observations and projections of future research directions prepared by the session chairmen. We wish to express our appreciation to Dr. D. L. Davis, of the RI. Reynolds Tobacco Company for suggesting the organization of the Symposium and the publication of the proceedings, and to the R 1. Reynolds Tobacco Company for the financial support which made the symposium possible. We also wish to thank those of our colleagues in the Department of Plant Pathology, University of Kentucky, who very ably and in many ways contributed to the organization and conduct of the conference. Thomas P. Pirone lohnG. Shaw v Contents Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v Contributors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi INDUCTION OF HOST GENES BY THE HYPERSENSITIVE RESPONSE OF TOBACCO TO VIRUS INFECTION J. F. Bol, C. M. A. van Rossum, Bl. C. Cornelissen and H. J. M. Linthorst . . . . . . . . . . . . . . . . . l COAT PROTEIN MEDIATED RESISTANCE IN TRANSGENIC PLANTS Roger N. Beachy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 STRUCTURE AND FUNCTIONS OF TOBACCO MOSAIC VIRUS RNA Yoshimi Okada, Tetsuo Meshi, and Yuichiro Watanabe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Induction of Host Genes by the Hypersensitive Response of Tobacco to Virus Infection.- Coat Protein Mediated Resistance in Transgenic Plants.- Structure and Functions of Tobacco Mosaic Virus RNA.- Relationship of Tobacco Mosaic Virus Gene Expression to Movement Within the Plant.- The Cell to Cell Movement of Viruses in Plants.- Summary and Concluding Remarks by the First Session Chairman.- Transgenic Host Response to Gene VI of Two Caulimoviruses.- The Use of 35S RNA as Either Messenger or Replicative Intermediate Might Control the Cauliflower Mosaic Virus Replication Cycle.- Gene VI of Figwort Mosaic Virus Activates Expression of Internal Cistrons of the Full-Length Polycistronic RNA Transcript.- Molecular Genetics of Tomato Golden Mosaic Virus Replication: Progress Toward Defining Gene Functions, Transcription Units And The Origin Of Dna Replication.- Summary and Concluding Remarks by the Second Session Chairman.- Organization and Expression of Potyviral Genes.- Expression Of The Potyvirus Genome: The Role Of Proteolytic Processing.- Summary and Concluding Remarks by the Third Session Chairman.- Molecular Biology of Bromo Virus Replication and Host Specificity.- Genetic Mapping of Cucumber Mosaic Virus.- Mutational Analysis of Viroid Pathogenicity and Movement.- Use of Plant Virus Satellite RNA Sequences to Control Gene Expression.- Infectious Synthetic Transcripts of Beet Necrotic Yellow Vein Virus RNAs and Their use in Investigating Structure-Function Relations.- Concluding Comments and Reflections on Current Trends in Plant Virology by the Fourth Session Chairman.- Index of Contributors.