The Nature of Wilt Diseases of Plants

C.H. Beckman 
APS Press  1987  

Hardcover  182 pages, 32 photographs and illustrations  ISBN 0890540748      £50.00
The ultimate objective of this book is to advance the ongoing process of modeling vascular diseases of plants, especially Fusarium wilt of tomato. The book features a review of wilt diseases and then develops a framework in which past, present, and future findings can be classified and correlated. The contents are as follows:



The Production, Persistence, and Presentation of Inoculum

  • Growth and Reproduction in Moribund Tissues of the Host
  • The Persistence of Fusarium in the Soil
  • The Colonization of Root Surfaces
  • Suscept-Parasite Contacts--The Transition Between Persistence in the Soil and Extended Parasitic Growth
  • Disease Expression in Conducive Versus Suppressive Soils
  • Fusarium Crown and Root Rot--A Special Case
  • Modelling the Survival of Fusarium and Its Initial Contact with the Host

Defence Strategies of the Plant

  • Innate Structural Barriers
  • Recognition Phenomena
  • General Defence Responses

Determinative Phase I: Success or Failure of the Pathogen in Penetrating to the Vascular System of the Host

Determining Phase II: Success or Failure of the Pathogen in Colonizing the Vascular System

  • Modelling the Interaction Between Host and Parasite Within the Vascular System
  • Defining Parameters of the Model
  • Defining Components Within the Model
  • Defenses in the Lateral Direction
  • Defence in a Longitudinal Direction
  • A Perspective on Vascular Occlusion
  • The Activation of the Hormonal System of the Host
  • Vascular Gels and Gums and Vessel Coatings
  • Tyloses, Isodiametric Growth, and Increased Vascularization
  • The Synthesis of Stress Metabolites by the Host in Response to Infection
  • The Accumulation of Phenolics Following Infection and Their Relation to the Resistance Process
  • The Lignification and Suberization of Infected Tissues
  • Phytoalexins Produced in Response to Stress
  • Other Host Responses That Contribute to Defence
  • The Defence Strategies of the Plant
  • Colonization of the Vascular System by the Pathogen
  • Defining Pathogen Factors That Disrupt Host Defenses
  • Avoiding or Overcoming Recognition
  • Avoiding or Overcoming Callose Deposition
  • Avoiding or Overcoming Vascular Gelation
  • Avoiding or Overcoming Vascular Blockage by Tylose Occlusion or Vessel Crushing
  • Avoiding or Overcoming Stress Metabolites
  • The Suppression of Responses as Reflected in Respiration
  • Some Thoughts on the Suppressions of Responses

The Expressive Phase of the Disease

  • The Causes of Wilting--The Great Debate
  • The Evidence for Vascular Plugging and the Failure of the Water Supply
  • The Toxin Hypothesis in Relation to Symptom Expression
  • A Role for Toxins Produced by the Pathogen?

Genetic Variation in the Host and Pathogen

  • Resistance of Tomato to Fusarium oxysporum f. sp. lycopersici Race 1
  • Resistance of Tomato to Fusarium oxysporum f. sp. lycopersici Races 2 and 3 and to F.o. f.sp. radicis-lycopersici
  • Resistance of Tomato to Related Disease Organisms
  • Genetic Variation and Taxonomy of the Pathogens
  • Genetic Studies of Fusarium oxysporum
  • Classification and Nomenclature of Host and Pathogen in Terms of Their Interactions
  • The Cataloging and Mapping of Genes

Environmental Factors in Disease Development

  • Temperature
  • Light
  • Soil Moisture and Aeration
  • The Effect of Nutrients on Wilt Development
  • Calcium Nutrition and Soil pH
  • Nitrogen Nutrition
  • The Effect of Nonpathogenic Microflora on Disease Development
  • The Effect of Nematode Infections on Wilt Expression

Control Measures

  • Reducing Inoculum Load in the Soil
  • The Problem of Soil Reinfestation
  • The Control of Soil Reinfestation
  • The Use of Systemic Chemicals for Wilt Control
  • The Limitations of Chemical Control
  • The Use of Biological Control
  • The Selection, Development, and Maintenance of Suppressive Soils
  • Altering the Soil Nutrients
  • The Use of Resistant Cultivars
  • Building a Strategy for Control

A Look Toward the Future


To find similar publications, click on a keyword below:
American Phytopathological Society : Fusarium : agriculture & forestry : biological control : biotechnology : crop protection : disease control : genetics : horticulture : integrated crop protection : mycology : nematology : plant genetics : plant pathology : plant science : soil science : taxonomy : toxicology

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