American Phytopathological Society Board & Staff. VIEW ABSTRACT | VIEW ARTICLE
Letter to the Editor
Probability of Mutation to Multiple Virulence and Durability of Resistance Gene Pyramids. C. C. Mundt. Pages 221-223. VIEW ABSTRACT | VIEW ARTICLE
Techniques
A Monoclonal Antibody That Discriminates Strains of Citrus Tristeza Virus. T. A. Permar, S. M. Garnsey, D. J. Gumpf, and R. F. Lee. Pages 224-228. VIEW ABSTRACT | VIEW ARTICLE
Ecology and Epidemiology
Interrelationships Between Meloidogyne hapla and Phytophthora megasperma f. sp. medicaginis in Seedling Damping-off and Root Infection of Alfalfa. F. A. Gray, G. D. Griffin, D. A. Johnson, J. W. Eckert, and J. E. Kazimir. Pages 228-232. VIEW ABSTRACT | VIEW ARTICLE
Techniques
Isolation of the DNA of Various Plant Pathogenic Mycoplasmalike Organisms from Infected Plants. A. Kollar, E. Seemüller, Françoise Bonnet, Colette Saillard, and J. M. Bové. Pages 233-237. VIEW ABSTRACT | VIEW ARTICLE
Etiology
Symptom Intensification on Cruciferous Hosts by the Virulent Satellite RNA of Turnip Crinkle Virus. Xiao Hua Li, Anne E. Simon. Pages 238-242. VIEW ABSTRACT | VIEW ARTICLE
Genetics
Introgression of Powdery Mildew Resistance from Rye into Wheat. M. Heun, B. Friebe. Pages 242-245. VIEW ABSTRACT | VIEW ARTICLE
Physiology and Biochemistry
Cross-Protection with Strains of Potato Spindle Tuber Viroid in the Potato Plant and Other Solanaceous Hosts. R. P. Singh, A. Boucher, and T. H. Somerville. Pages 246-250. VIEW ABSTRACT | VIEW ARTICLE
Resistance
Incidence and Histology of Stem-Girdling Galls Caused by Fusiform Rust. C. H. Walkinshaw, T. A. Roland. Pages 251-255. VIEW ABSTRACT | VIEW ARTICLE
Etiology
Serological and Biological Variability of Virus Isolates Related to Strains of Papaya Ringspot Virus. L. Quiot-Douine, H. Lecoq, J. B. Quiot, M. Pitrat, and G. Labonne. Pages 256-263. VIEW ABSTRACT | VIEW ARTICLE
Molecular Plant Pathology
Homology of the Agent Associated with Dapple Apple Disease to Apple Scar Skin Viroid and Molecular Detection of These Viroids. A. Hadidi, C. Huang, R. W. Hammond, and J. Hashimoto. Pages 263-268. VIEW ABSTRACT | VIEW ARTICLE
Vector Relations
A Non-Aphid-Transmissible Isolate of Bean Yellow Mosaic Virus-Scott That Is Transmissible from Mixed Infections with Pea Mosaic Virus-204-1. H. A. Hobbs, M. R. McLaughlin. Pages 268-272. VIEW ABSTRACT | VIEW ARTICLE
Resistance
Effects of Growing Conditions on Wound Repair and Disease Resistance in Pachysandra terminalis. George W. Hudler, Brenda G. Neal, and Mark T. Banik. Pages 272-277. VIEW ABSTRACT | VIEW ARTICLE
Techniques
Detection of Phytophthora parasitica from Soil and Host Tissue with a Species-Specific DNA Probe. P. H. Goodwin, J. T. English, D. A. Neher, J. M. Duniway, and B. C. Kirkpatrick. Pages 277-281. VIEW ABSTRACT | VIEW ARTICLE
Etiology
Purification and Characterization of Strawberry Crinkle Virus. B. G. Hunter, J. Richardson, R. G. Dietzgen, A. Karu, E. S. Sylvester, A. O. Jackson, and T. J. Morris. Pages 282-287. VIEW ABSTRACT | VIEW ARTICLE
Genetics
Vegetative Compatibility in Leucostoma persoonii. Gerard Adams, Sue Hammar, and Tyre Proffer. Pages 287-291. VIEW ABSTRACT | VIEW ARTICLE
Ecology and Epidemiology
Spread of Maize Chlorotic Dwarf Virus in Maize Fields by its Leafhopper Vector, Graminella nigrifrons. L. V. Madden, J. K. Knoke, and Raymond Louie. Pages 291-298. VIEW ABSTRACT | VIEW ARTICLE
Physiology and Biochemistry
Immunoassay for Naphthazarin Phytotoxins Produced by Fusarium solani. D. C. Phelps, S. Nemec, R. Baker, and R. Mansell. Pages 298-302. VIEW ABSTRACT | VIEW ARTICLE
Etiology
Tubular Helical Structures and Fine Filaments Associated with the Leafhopper-borne Maize Yellow Stripe Virus. E. D. Ammar, R. E. Gingery, D. T. Gordon, and A. E. Aboul-Ata. Pages 303-309. VIEW ABSTRACT | VIEW ARTICLE
Resistance
Variation in Expression of Monogenic Resistance in Corn to Exserohilum turcicum Race 3 Under Different Temperature and Light Regimes. S. Leath, R. P. Thakur, and K. J. Leonard. Pages 309-313. VIEW ABSTRACT | VIEW ARTICLE
