Ebook: Recognition in Microbe-Plant Symbiotic and Pathogenic Interactions

This volume comprises the lectures of the speakers at the NATO Advanced Research Workshop held at the Congress Centre The Flevohof at Biddinghuizen, The Netherlands, May 11-16, 1986. The purpose of the workshop was to bring together experts in symbiosis, plant pathology and plant molecular biology in order to discuss recent progress in the field of microbe -plant re­ cognition at the molecular level, to promote integration of various disciplines, and to define recommendations for future research and applications. Plants have developed a variety of sophisticated defence mechanisms to cope with an environment in which many different microbes live. Most microbes which colonize plant tissues are harmless. Some microbes have developed ways to attack plants successfully, resulting in enormous losses of crop yields. Other microbes have reached an agreement with the host plant which is beneficial for both: these microbes live in symbiosis with the plant and provide their host plant for example with substantial amounts of atmospheric nitrogen. Chemical protection of crops is a necessity in modern crop management but this treatment has some negative effects as well. Therefore scientists are looking for alternative, biological, ways to control crop pests. Against this background specialists from eleven countries discussed the results of their most recent work on the molecular background of microbe -plant interactions. It appeared that, in order to capitalize the recent rapid progress made in the mole­ cular genetical studies on Rhizobium-legume and pathogen-host plant interactions, a multidisciplinary approach is required.

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Content:
Front Matter....Pages I-XIII
Genetic Analysis of Rhizobium-Plant Interactions....Pages 1-15
Respective Roles of Common and Specific Rhizobium meliloti nod Genes in the Control of Lucerne Infection....Pages 17-28
Infection Mutants of Rhizobium Meliloti are Altered in Acidic Exopolysaccharide Production....Pages 29-37
Intercellular Communication and Recognition in the Rhizobium-Legume Symbiosis....Pages 39-54
Promoters and Operon Structure of the Nodulation Region of the Rhizobium Leguminosarum Symbiosis Plasmid pRL1JI....Pages 55-68
Manipulation of Nodulation Specificity in the Pea-Rhizobium Leguminosarum Symbiosis....Pages 69-78
Nodulation of Soybean: Bradyrhizobium Japonicum Physiology and Genetics....Pages 79-86
Attachment of Rhizobium Leguminosarum to Pea Root Hair Tips....Pages 87-99
Specificity of Rhizobium(Galega) — Galega — Interaction....Pages 101-111
Induction of Rhizobium Nod Genes by Flavonoids: Differential Adaptation of Promoter, nodD Gene and Inducers for Various Cross-Inoculation Groups....Pages 113-114
Fractionation of Rhizobium Leguminosarum Cells Into Outer Membrane , Cytoplasmic Membrane, Periplasmic and Cytoplasmic Components....Pages 115-121
A Study of Surface Interactions Between Rhizobium Bacteroids and the Peribacteroid Membrane using Monoclonal Antibodies....Pages 123-135
Nodulins Involved in Early Stages of Pea Root Nodule Development....Pages 137-148
Pathogenic Strategies of Fungi....Pages 149-152
The Molecular Basis of the Agrobacterium-Plant Interaction — Characteristics of Agrobacterium virulence genes and their possible occurrence in other plant-associated bacteria -....Pages 153-161
T-Region Transfer from Agrobacterium Tumefaciens to Plant Cells: Functional Characterization of Border Repeats....Pages 163-169
Cloning of DNA Sequences from Azospirillum Brasilense, Homologous to Rhizobium Nod Genes and Agrobacterium Vir Genes....Pages 171-188
Attachment of Agrobacterium Tumefaciens to Plant Host Cells....Pages 189-202
Role of Fimbriae and Pili in the Attachment of Klebsiella, Enterobacter and Pseudomonas to Plant Surfaces....Pages 203-214
Race Specific Resistance to Bremia Lactucae is Expressed by Lettuce Cells in Suspension Culture....Pages 215-218
Interaction of Fungal Polygalacturonase with Plant Proteins in Relation to Specificity and Regulation of Plant Defense Response....Pages 219-227
A Model System for the Study of Fungus — Host Surface Interactions: Adhesion of Phytophthora Megasperma to Protoplasts and Mesophyll Cells of Soybean....Pages 229-241
Ultrastructural Studies of Surface Interactions During Adhesion and Infection by Ericoid Endomycorrhizal Fungi....Pages 243-251
Structural Modifications of the Fungal Wall Before and During Vam Symbiosis....Pages 253-258
Studies on the Role of Carbohydrates in Host-Microbe Interactions....Pages 259-272
Biochemical Interactions of Plants with Potentially Pathogenic Fungi....Pages 273-282
Stimulation of Phytoalexin Formation in Fungus-Infected Plants and Elicitor-Treated Cell Cultures of Parsley....Pages 283-286
Recognition and Response in Plant:Pathogen Interactions....Pages 287-295
Phytoalexin Synthesis in Soybean Following Infection of Roots with Phytophthora Megasperma or Treatment of Cell Cultures with Fungal Elicitor....Pages 297-309
Elicitation of Indole Alkaloid Biosynthesis in Periwinkle....Pages 311-323
Hydroxyproline-Rich Glycoproteins (Hrgps) in Infected Plants : Signaling, Accumulation and Gene Expression....Pages 325-331
Molecular Aspects of Plant Growth Affecting Pseudomonas Species....Pages 333-344
The Iron-Uptake System of the Plant-Growth-Stimulating Pseudomonas Putida WCS358: Genetic Analysis and Properties and Structure Analysis of Its Siderophore....Pages 345-361
Role of Flagella of the Plant Growth Stimulating Pseudomonas Fluorescens Isolate WCS374 in the Colonization of Potato Roots....Pages 363-366
Conditions in the Rhizosphere in Relation to Microbial Development....Pages 367-376
Prospects for Novel Plant Disease Control Rationales....Pages 377-384
Plant-Agrobacterium Interaction....Pages 385-393
Recognition, Elicitors and the Hypersensitive Reaction....Pages 395-404
Molecular Analysis of Plant Defence Mechanisms....Pages 405-408
Back Matter....Pages 409-412
....Pages 413-421