Plant Pathology

Plant Pathology

2nd Edition - January 1, 1978

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  • Author: George Agrios
  • eBook ISBN: 9780323161350

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Description

Plant Pathology, Second Edition incorporates developments in identifying pathogens and disease diagnosis. This book is organized into two major parts encompassing 16 chapters that discuss general aspects of plant diseases and specific plant diseases caused by various microorganisms. This edition includes chapters or sections on diseases caused by mycoplasma-like organisms, rickettsia-like bacteria, viroids, and protozoa. Information on the genetics of plant diseases, the development of resistant varieties, and their vulnerability to new pathogen races is added in this release. It also includes information on the development of epidemics. The presentation of these topics is followed by a discussion on systemic fungicides and biological control of diseases, as well as postharvest diseases of plant products. Furthermore, this edition also explains mycotoxins and mycotoxicoses, as well as techniques of isolation, culturing, indexing, and identification of pathogens. It also studies mycorrhiza and root-nodule bacteria. Considerable chapters describe diseases caused by fungi and those caused by bacteria, which have been organized in logical, cohesive groups according to their most important symptoms. Diagrams of disease cycles, groups of pathogens and symptoms, and techniques and concepts of plant pathology are incorporated in each chapter. Moreover, this edition provides numerous photographs (macroscopic, microscopic, electron micrographs, and scanning electron micrographs) that illustrate concepts, pathogens, and symptoms. Teachers and students who are interested in plant pathology and plant diseases and control will find this book very helpful.

Table of Contents


  • Part 1 General Aspects

    1. Introduction

    The concept of disease in plants

    Classification of plant diseases

    History of plant pathology

    Importance of plant diseases

    Diagnosis of plant diseases

    Identification of a previously unknown disease—Koch's postulates

    2. Parasitism and disease development

    Parasitism and pathogenicity

    Host range of pathogens

    Stages in the development of disease

    3. How pathogens attack plants

    Mechanical forces exerted by pathogens on host tissues

    Chemical weapons of pathogens

    Growth regulators in plant disease

    4. Pathogen effects on plant physiological functions

    Effect of pathogens on photosynthesis

    Effect of pathogens on translocation of water and nutrients in the host plant

    Effect of pathogens on host plant respiration

    5.How plants defend themselves against pathogens

    Structural defense

    Biochemical defense

    6. Genetics and plant disease

    Introduction

    Mechanisms of variability

    Stages of variation in pathogens

    Types of plant resistance to pathogens

    Genetics of virulence in pathogens and of resistance in host plants

    Breeding of resistant varieties

    7. Effect of environment on development of infectious plant diseases

    Effect of temperature

    Effect of moisture

    Effect of wind

    Effect of light

    Effect of soil pH

    Effect of host-plant nutrition

    The role of environmental factors in plant disease epidemics

    Weather and forecasting of plant disease epidemics

    8. Control of plant diseases

    Regulatory methods

    Cultural methods

    Biological methods

    Physical methods

    Chemical control

    Part 2 Specific Plant Diseases

    9. Environmental factors that cause plant diseases

    Introduction

    Temperature

    Moisture

    Inadequate oxygen

    Light

    Air pollution

    Nutritional deficiencies in plants

    Soil minerals toxic to plants

    Herbicide injury

    Other improper agricultural practices

    10. Plant diseases caused by fungi

    Introduction

    Characteristics of plant-pathogenic fungi

    Classification of plant-pathogenic fungi

    Isolation of fungi (and bacteria)

    Life cycles of fungi

    Control of fungus diseases of plants

    Diseases caused by the lower fungi

    11. Plant diseases caused by bacteria

    Introduction

    Characteristics of plant-pathogenic bacteria

    Bacterial spots and blights

    Bacterial vascular wilts

    Bacterial soft rots

    Bacterial galls

    Bacterial cankers

    Bacterial scabs

    Root nodules of legumes

    Plant diseases caused by rickettsialike bacteria

    12. Plant diseases caused by mycoplasmalike organisms

    Introduction

    Properties of mycoplasmas

    Other organisms that resemble mycoplasmas: L-forms of bacteria

    Examples of plant diseases caused by mycoplasmalike organisms

    13. Plant diseases caused by parasitic higher plants

    Introduction

    14. Plant diseases caused by viruses

    Introduction

    Characteristics of plant viruses

    The biological function of viral components—coding

    Virus infection and virus synthesis

    Translocation and distribution of viruses in plants

    Symptoms caused by plant viruses

    Physiology of virus-infected plants

    Transmission of plant viruses

    Purification of plant viruses

    Serology of plant viruses

    Nomenclature and classification of plant viruses

    Identification of plant viruses

    Economic importance of plant viruses

    Control of plant viruses

    Plant diseases caused by viroids

    15. Plant diseases caused by nematodes

    Introduction

    Characteristics of plant-pathogenic nematodes

    Isolation of nematodes

    Symptoms caused by nematodes

    How nematodes affect plants

    Control of nematodes

    16. Plant diseases caused by protozoa

    General References

    Glossary

    Index






Product details

  • No. of pages: 716
  • Language: English
  • Copyright: © Academic Press 1978
  • Published: January 1, 1978
  • Imprint: Academic Press
  • eBook ISBN: 9780323161350

About the Author

George Agrios

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