Table Of Content

Rk Annual Review of Phytopathology Volume 31, 1993 CONTENTS PREFATORY CHAPTER International Co-operation in Potato Research and Development, John S. Niederhauser PIONEER LEADERS Ernest Charles Large: Pioneer in Phytopathometry, John Colhoun Pioneer Leaders in Plant Pathology: Ralph M. Caldwell, John F. Schafer William H. Weston (1890-1978): Tribute and Remembrance, Luis Sequeira DEVELOPMENT OF CONCEPTS Making Greater Use of Introduced Microorganisms for Biological Control of Plant Pathogens, R. James Cook DIAGNOSIS AND APPRAISAL OF PLANT DISEASE The Polymerase Chain Reaction and Plant Disease Diagnosis, Joan M. Henson, Roy French Biology and Management of Early Dying of Potatoes, Mary L. Powelson, Randall C. Rowe PATHOGENS: FUNGI Fungal Vegetative Incompatibility, John F. Leslie PATHOGENS: BACTERIA AND OTHER PROKARYOTES Toxigenic Clavibacter/Anguina Associations Infecting Grass Seedheads, A. C. McKay, K. M. Ophel PATHOGENS: NEMATODES Changing Concepts and Molecular Approaches in the Management of Virulence Genes in Potato Cyst Nematodes, Jaap Bakker, Rolf T. Folkertsma, Jeroen N.A.M. Rouppe van der Voort, Jan M. de Boer, Fred J. Gommers Vi Contents (continued) ABIOTIC STRESS AND OTHER DISEASES Soil Environmental Modifications of Root Dynamics and Measurement, A. J. M. Smucker Mango Malformation: One Hundred Years of Research, J. Kumar, U. S. Singh, S. P. S. Beniwal PHYSIOLOGY, MORPHOLOGY, AND ANATOMY Fumonisins, Mycotoxins Produced by Fusarium Species: Biology, Chemistry, and Significance, Paul E. Nelson, Anne E. Desjardins, Ronald D. Plattner The Role of Auxin in Plant Disease Development, Tetsuji Yamada BIOCHEMISTRY & MOLECULAR BIOLOGY OF HOST-PATHOGEN INTERACTIONS Host-selective Toxins and Disease Specificity: Perspectives and Progress, Jonathan D. Walton, Daniel C. Panaccione GENETICS OF HOST PATHOGEN INTERACTION The Structure of Pathogen Populations in Natural Plant Communities, Jeremy J. Burdon BREEDING FOR RESISTANCE Breeding Elms for Resistance to Dutch Elm Disease, EF. B. Smalley, R. P. Guries EPIDEMIOLOGY AND INFLUENCE OF CLIMATE Gene Flow in Plant Pathosystems, Joseph M. McDermott, Bruce A. McDonald Pollen- and Seed-transmitted Viruses and Viroids, G. J. Mink TOXICANTS AND CHEMICAL CONTROL Chemical Control of Plant Diseases: Problems and Prospects, M. A. De Waard, S. G. Georgopoulos, D. W. Hollomon, H. Ishii, P. Leroux, N. N. Ragsdale, F. J. Schwinn Efforts by Industry to Improve the Environmental Safety of Pesticides, J. R. James, B. G. Tweedy, L. C. Newby BIOLOGICAL AND CULTURAL CONTROL The Behavior and Tracking of Bacteria in the Rhizosphere, Daniel A. Kluepfel Contents (continued) Manipulation and Vectoring of Biocontrol Organisms to Manage Foliage and Fruit Diseases in Cropping Systems, John C. Sutton, Gang Peng Biological Impact and Risk Assessment in Plant Pathology, Paul S. Teng, X. B. Yang INDEXES Subject Index Cumulative Index of Contributing Authors, Volumes 22-31 Cumulative Index of Chapter Titles, Volumes 22-31