Ebook: Plant Pathogenic Bacteria: Proceedings of the Sixth International Conference on Plant Pathogenic Bacteria, Maryland, June 2–7, 1985

More than 270 scientists from 33 countries attended the 6th International Conference on Plant Pathogenic Bacteria in College Park, Maryland, June 2-7, 1985. The Conference was jOintly sponsored by the International Society of Plant Pathology, Bacteria Section and by the United States Department of Agriculture, Agriculture Research Service. The Conference provided an opportunity for the presentation and discussion of recent developments in phytobacteriology. The Conference was organized into five symposia, seven discussion sessions, contributed papers and poster presentations. More than 230 contributions were presented under the following topics: ice nucleating bacteria; detection, identification, nomenclature and taxonomy of phytopathogenic bacteria; applications and impact of new biotechnologies on phytobacteriology; bacterial phytotoxins; diagnostic phytobacteriology; management of bacterial plant diseases; and molecular biology, genetics and ecology, epidemiology of phytopathogenic bacteria. In addition, special sessions focused on Agrobacterium, Erwinia, Psedomonas and fastidious prokaryotes. This reflected the broad spectrum of current research activity in phytobacteriology. Furthermore, interest in this series of conferences clearly continues to increase. Key research scientists who are currently making major advances in phytobacteriology participated in the Symposia and Discussions. One of the most significant recent changes that has occurred in the field of plant pathology generally is the dynamic growth of research in which recombinant DNA technology is being applied in basic studies on bacterial plant pathogens. Results from investigations on the crown gall bacterium have stimulated expansion of research on other bacterial systems.

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Content:
Front Matter....Pages I-XXIII
T-DNA Border Sequences Required for Crown Gall Tumorigenesis....Pages 1-10
Genes Involved in Indole Acetic Acid Production in Plant Pathogenic Bacteria....Pages 11-17
Analysis of the Locus Involved in Plasmid Partitioning for the Native Agrobacterium Plasmid pTAR....Pages 18-25
Transfer of the T-DNA from Agrobacterium Tumefaciens to Plant Cells....Pages 26-33
Structure and Properties of Border Sequences in T-DNA Transformation....Pages 34-41
Serological Study of Agrobacterium Biotypes....Pages 42-55
Control of Crown Gall in Swiss Apple Nurseries....Pages 56-67
A Proposed Basis for Varietal Differences in Sensitivity of Grapes to Crown Gall Disease....Pages 68-75
Biological Control of Crown Gall by Bacteriocin-Producing Bacteria....Pages 76-76
Pathogenesis by Pectolytic Erwinias....Pages 77-78
Erwinia Cellulases....Pages 79-86
Assimilation: Ketouronate Pathway....Pages 87-90
Assimilation in Soft Rot Erwinias: Cellobiose Pathway....Pages 91-95
Genetic Systems in the Soft Rot Erwinia Group....Pages 96-100
Development of a Chromosomal Map in Soft Rot Erwiniae....Pages 101-102
Approaches in the Diagnosis of Soft Rot Diseases of the Potato....Pages 103-104
Soft Rot Erwinias: What is Pathogenicity?....Pages 105-105
Factors Affecting Blackleg Development....Pages 106-106
A Rapid Method to Identify Soft Rot Erwinias Directly from Plant Material....Pages 107-107
Control of Bacterial Soft Rot in Potato Tubers with Hypochlorite and Certain Organic Acids....Pages 108-108
The Diversity of the Pectolytic Fluorescent Pseudomonads....Pages 109-120
Pectolytic Bacteria Associated with Post-Harvest Decays of Fruits and Vegetables with Special Reference to Fluorescent Pseudomonads....Pages 121-128
The Nonrandom Variation in the Distribution of Phenotypic Properties within a DNA Homology Matrix of Fluorescent Pseudomonads....Pages 129-136
Pectolytic Fluorescent Pseudomonads Associated with Alfalfa Root and Crown Rot....Pages 137-149
Taxonomy of the Fluorescent Pectolytic Pseudomonads....Pages 150-159
Serology of Mycoplasma-Like Organisms....Pages 160-171
Detection of Corn Stunt Spiroplasma in Plants by Elisa Employing Monoclonal Antibodies and by Isolation of the Pathogen and its Phages in Serum-Free Medium....Pages 172-180
Vector Relationships of Xylem- and Phloem-Limited Fastidious Prokaryotes....Pages 181-181
Biology and Physiology of Fastidious Xylem-Limited Bacteria from Plants....Pages 182-188
Etiology of Ratoon Stunting Disease and Host Resistance....Pages 189-197
Detection and Control of Plant Diseases Caused by Fastidious Prokaryotes....Pages 198-205
Monoclonal Antibodies for Differentiating Some Strains of the Fastidious Gram-Negative Bacteria from Plants....Pages 206-211
Strains of Corn Stunt Spiroplasma Defective in Helicity and Motility....Pages 212-217
Preliminary Results on Transmission of Xylem-Limited Bacteria Causing Sumatra Disease of Cloves in Indonesia by Tube-Building Cercopoids, Hindola Spp. (Homoptera: Machaerotidae)....Pages 218-223
Purification of Mycoplasma-Like Organisms from Lettuce Affected with Aster Yellows Agent....Pages 224-236
Genetics of Plant Pathogenic Coryneform Bacteria....Pages 237-243
Indigenous Plasmids in Xanthomonas Campestris Pv. Pruni....Pages 244-248
A Shuttle-Vector for Transferring Cloned DNA between E. Coli CO1E1 Replicons and Agrobacterium Virulence Plasmids....Pages 249-249
Current Status on Mode of Action Studies with Tagetitoxin....Pages 250-250
Cloning of Genes Encoding Phaseolotoxin....Pages 251-251
Toxigenic Bacteria: Their Ecology and Biocontrol Prospects....Pages 252-252
Leaf Necrosis Instead of Water-Soaking Due to Light Deficiency after Inoculation with Pseudomonads and Xanthomonads....Pages 253-253
Contribution of Sugar Bacterial Components in HR of Tobacco....Pages 254-254
Activation of a Plasmalemma K+ Efflux/H+ Influx Mechanism in Tobacco by Incompatible Bacteria or Pectate Lyase....Pages 255-255
Alginic Acid as an Exopolysaccharide of Plant Pathogenic Pseudomonads....Pages 256-256
Effects of Extracellular Polysaccharides on Bacterial Multiplication ‘In Planta’....Pages 257-257
Involvement of Lipid Peroxidation in Bacterially Induced Hypersensitive Reaction....Pages 258-258
Cell Membrane Potential in Tissues Undergoing Bacterial Hypersensitivity....Pages 259-259
Cytological Observations of Leaf Spot-Causing Bacteria in Susceptible and Resistant Hosts....Pages 260-260
Hydraulic Conductivity in Sugarcane Clones as Related to Resistance to Ratoon Stunting Disease....Pages 261-261
Preservation of Phytopathogenic Bacteria by Soft Agar Stab Method....Pages 262-266
Bacterial Pustule Disease of Soybean: Electron Microscopy of Pustule Development in a Susceptible Cultivar....Pages 267-267
Plant Pathogenic Bacteria Identified in Spain....Pages 268-268
Plant Diseases Caused by Bacteria in United Arab Emirates....Pages 269-269
Avocado Bacterial Blast in Mexico....Pages 270-271
Pepper Spot of Crucifers in California....Pages 272-272
Invasion of the Epidermis and Cortex of Apple Roots by Actinomycetes....Pages 273-276
Utility of an Eclectic Approach for Obtaining Plant Growth-Promoting Rhizobacteria from New York State Apple Replant Soils....Pages 277-282
Transfer of RP4 Plasmid on Leaf Surface of Hazelnut....Pages 283-288
Ecology and Survival of Plant Pathogenic Bacteria in the Semi-Arid Zones of Nigeria....Pages 289-290
Bacterial Blight of Anthurium in Venezuela....Pages 291-297
Etiology of the Head Rot Disease of Broccoli....Pages 298-298
Association of Erwinia Spp. with the Rhizosphere of Crops and Weeds in the Peruvian Jungle....Pages 299-300
Pectolytic Xanthomonas Isolates Causing Soft-Rot of Vegetables in Storage: Isolation, Characterization and Pathology....Pages 301-305
Characterization of Phytopathogenic Pseudomonads: An Approach to Minimal Standards for Description....Pages 306-312
Problems with the Pathovar Concept....Pages 313-320
Practical Problems with the Pathovar Scheme in Plant Quarantine....Pages 321-326
The Taxonomy of Xanthomonas Dowson 1939....Pages 327-333
Detecting Seedborne Bacteria by Immunofluorescence....Pages 334-339
DNA Hybridization Probes for the Identification of Phytobacteria....Pages 340-346
Use of Selective Agar Media in Diagnosis of Plant Diseases Caused by Bacteria....Pages 347-351
Principles and Prospects of New Serological Techniques Including Immunosorbent Immunofluorescence, Immunoaffinity Isolation and Immunosorbent Enrichment for Sensitive Detection of Phytopathogenic Bacteria....Pages 352-356
Mexican Lime Bacteriosis Examined with Monoclonal Antibodies....Pages 357-363
Capability of Phytopathogenic Bacteria to Secrete Wall Degrading Enzymes--A Criterion for Their Identification....Pages 364-369
Problems with the Detection of Latent Potato Ring Rot Infection....Pages 370-374
Selective Isolation and Concentration of Phytopathogenic Bacteria on Immunoaffinity Columns....Pages 375-375
Prospects for Detecting and Controlling Potato Ring Rot in Norway....Pages 377-387
Crown Gall of Grapevine: Disease Management Considerations....Pages 388-393
Development of a Risk-Assessment System for Fire Blight....Pages 394-403
Assessment of Fire Blight Risk Assessment Systems....Pages 404-411
Resistance of Chilean Potato Clones to Bacterial Wilt....Pages 412-412
The Antagonistic Effects of Fluorescent Pseudomonas Spp. on Plant Growth and the Control of Softrot and Blackleg of Potato....Pages 413-418
Effect of Nitrogen and Plant Spacing on Bacterial Leaf Blight of Rice....Pages 419-424
Evaluation of an In-Field Microcomputer and a Weather-Based Model for Assessing Fire Blight Risk in Bloom....Pages 425-429
Comparative Study of the Efficacy of Busan 30, Busan 72, and Bronocot for the Control of Bacterial Blight of Cotton in Northern Nigeria....Pages 430-433
Detection of X-Disease Mycoplasma-Like Organisms in Plant and Insect Hosts Using Cloned, Disease Specific DNA....Pages 434-438
Bacterial Populations in Buds and Probability of Frost Injury on Grapevine....Pages 439-443
Ice-Nucleation-Active Bacteria on Citrus in Florida....Pages 444-447
Functional Significance of Oligonucleotide Repeats in a Bacterial Ice Nucleation Gene....Pages 448-452
Application of Tube-Nucleation Assays to Rapid Population Estimates of Rhizobacteria Expressing Novel Ice-Nucleation Activity....Pages 453-457
Enhancement of Snow Production by Ice Nucleation-Active Bacteria in Air:Water Systems....Pages 458-464
Reciprocal Competition between INA+ Wild-Type and INA- Deletion Mutant Strains of Pseudomonas on Strawberry Blossoms....Pages 465-469
A Hypothetical Bioprecipitation Cycle Involving Ice-Nucleating and Dew-Condensing Bacteria, Plants and Rainfall....Pages 470-470
Application of Novel Ice-Nucleation Activity to a Rapid Assay of Rhizobacteria Population Densities by “Tube-Freezing”....Pages 471-471
....Pages 472-472