Toxins in Plant Disease

Toxins in Plant Disease PDF Author: R Durbin
Publisher: Elsevier
ISBN: 0323147046
Category : Science
Languages : en
Pages : 528

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Book Description
Toxins in Plant Disease presents a comprehensive coverage of plant disease toxins, both those for which there are reasonable evidence and those with fewer credentials. This book is primarily concerned with the mechanism wherein substances that interfere with metabolism or that alter the normal structure of protoplasm are produced and released (category 1); this includes the traditional toxins, which are usually of low molecular weight. It also describes category 2 mechanism, wherein substances that interfere with normal control of growth and development are produced and released; these microorganisms are classified as growth-affecting compounds. Moreover, this text addresses some high-molecular-weight compounds that contribute to vascular dysfunction. It further talks about the production, isolation, assay, genetics of production, mechanism of action, structure-activity relationship, metabolism, and applications of these toxins. This publication will provide a rational basis for future investigations and contribute to the eventual understanding of the role that toxins play in disease causation.

Toxins in Plant Disease

Toxins in Plant Disease PDF Author: R Durbin
Publisher: Elsevier
ISBN: 0323147046
Category : Science
Languages : en
Pages : 528

Get Book Here

Book Description
Toxins in Plant Disease presents a comprehensive coverage of plant disease toxins, both those for which there are reasonable evidence and those with fewer credentials. This book is primarily concerned with the mechanism wherein substances that interfere with metabolism or that alter the normal structure of protoplasm are produced and released (category 1); this includes the traditional toxins, which are usually of low molecular weight. It also describes category 2 mechanism, wherein substances that interfere with normal control of growth and development are produced and released; these microorganisms are classified as growth-affecting compounds. Moreover, this text addresses some high-molecular-weight compounds that contribute to vascular dysfunction. It further talks about the production, isolation, assay, genetics of production, mechanism of action, structure-activity relationship, metabolism, and applications of these toxins. This publication will provide a rational basis for future investigations and contribute to the eventual understanding of the role that toxins play in disease causation.

Toxins and Plant Pathogenesis

Toxins and Plant Pathogenesis PDF Author: Joseph Michael Daly
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 200

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Book Description
Toxins as chemical determinants of plant disease. Structural aspects of toxins. Molecular modes of action. Role of toxins in pathogenesis. Future prospects in toxin research.

Toxins in Plant Disease Development and Evolving Biotechnology

Toxins in Plant Disease Development and Evolving Biotechnology PDF Author: Rajeev K. Upadhyay
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 266

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Book Description
Toxins produced by plant pathogens are known to play an important role in plant pathogenesis and are actively involved in part of the disease expression. This text deals with both host-specific and non-host specific toxins in order to describe host-pathogen interactions leading to disease development and their biotechnological exploitation using genetic engineering tools for disease and weed management.

Phytotoxins and Plant Pathogenesis

Phytotoxins and Plant Pathogenesis PDF Author: Antonio Graniti
Publisher: Springer Science & Business Media
ISBN: 3642731783
Category : Technology & Engineering
Languages : en
Pages : 491

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Book Description
Proceedings of the NATO Advanced Research Workshop on Phytotoxins and Plant Pathogenesis held at Capri, Italy, May 30 - June 3, 1988

Molecular Genetics of Host-Specific Toxins in Plant Disease

Molecular Genetics of Host-Specific Toxins in Plant Disease PDF Author: Keisuke Kohmoto
Publisher: Springer Science & Business Media
ISBN: 9401152187
Category : Science
Languages : en
Pages : 400

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Book Description
For investigators engaged in the study of toxins generally, and host-specific toxins in particular, it is a rare treat to attend a meeting in which toxins involved in plant pathogenesis are emphasized. A gathering of this type provides opportunity to consider the discovery of new toxins, their chemical structures, genes encoding enzymes that control their biosyntheses, their sites of action and physiological effects on plants, and their roles (if any) in pathological processes. Having acknowledged the inspiration fostered by a 'toxin meeting', however, it is important to point out that the program of this symposium was generously sprinkled with 'nontoxin' talks. These contributions generated cross-disciplinary discussion and promoted new ways of thinking about relationships among factors required for plant disease development. The point can be illustrated by considering just one example. We have in the past often regarded diseases mediated by host-specific toxins and diseases involving 'gene-for-gene' relationships as representing two different classes of fungal/plant interaction. This is largely because the key molecular recognition event in so-called 'toxin' diseases leads to compatibility, whereas the corresponding event in 'gene-for-gene' diseases leads to incompatibility. Yet the race specific elicitors produced by the 'gene-for-gene' fungi Cladosporium fulvum (De Wit, Adv. Bot. Res. 21:147- 185, 1995) and Rhynchosporium secalis (Rohe et a1. , EMBO J.

Physiology and Biochemistry of Plant-Pathogen Interactions

Physiology and Biochemistry of Plant-Pathogen Interactions PDF Author: I. J. Misaghi
Publisher: Springer Science & Business Media
ISBN: 1468411497
Category : Medical
Languages : en
Pages : 293

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Book Description
There has been a significant surge of interest in the study of the physiology and biochemistry of plant host-parasite interactions in recent years, as evidenced by the number of research papers currently being published on the subject. The in creased interest is probably based on the evidence that effective management of many plant diseases is, for the most part, contingent upon a clear understanding of the nature of host-parasite interactions. This intensified research effort calls for a greater number of books, such as this one, designed to compile, synthesize, and evaluate widely scattered pieces of information on this subject. The study of host-parasite interactions concerns the struggle between plants and pathogens, which has been incessant throughout their coevolution. Such in teractions are often highly complex. Pathogens have developed sophisticated of fensive systems to parasitize plants, while plants have evolved diversified defen sive strategies to ward off potential pathogens. In certain cases, the outcome of a specific host-parasite interaction seems to depend upon the presence or efficacy of the plant's defense system. A plant may become diseased when a parasite manages to invade it, unhindered by preexisting defense systems and/or without eliciting the plant's induced resistance response(s). Absence of disease may re flect the inability of the invading pathogen to overcome the plant's defense sys tem(s).

Phytotoxins in Plant Diseases

Phytotoxins in Plant Diseases PDF Author: R. K. S. Wood
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 560

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Book Description


Plant Pathogenesis and Disease Control

Plant Pathogenesis and Disease Control PDF Author: Hachiro Oku
Publisher: CRC Press
ISBN: 9780873717274
Category : Science
Languages : en
Pages : 212

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Book Description
Environmental pollution resulting from widespread pesticide application has become a serious worldwide problem. Plant Pathogenesis and Disease Control is an important new reference that addresses this problem by exploring the biochemical and molecular mechanisms of plant pathogenesis and emphasizing the use of "pest control agents" rather than "pesticides" for plant disease control. Topics examined include pathogenicity, the resistance of plants against pathogens, the offensive and defensive struggle between hosts and parasites, methods for using natural defense mechanisms to develop environmentally sound disease control agents, and the use of modern biotechnology for plant disease control. The book will be an essential reference for phytopathologists, plant biochemists, pesticide chemists, mycologists, plant cell technologists, and agricultural researchers.

Host-specific Toxins : Recognition and Specificity Factors in Plant Disease

Host-specific Toxins : Recognition and Specificity Factors in Plant Disease PDF Author: Keisuke Kohmoto
Publisher:
ISBN:
Category :
Languages : en
Pages : 230

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Book Description


Advances in Microbial Toxin Research and Its Biotechnological Exploitation

Advances in Microbial Toxin Research and Its Biotechnological Exploitation PDF Author: Rajeev K. Upadhyay
Publisher: Springer Science & Business Media
ISBN: 1475744390
Category : Science
Languages : en
Pages : 290

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Book Description
Microbial toxins are secondary metabolites that accumulate in the organism and, to a large extent, are metabolically inactive towards the organism that produces them. The discovery of penicillin, a secondary metabolite of Penicillium notatum West (= P. chrysogenum Thom), in 1929 marked a milestone in the development of antibiotics (microbial toxins). In the intensive studies that followed this discovery, scientists chemically characterized several new molecules (toxins) from secondary metabolites of microbes, some having a definite function in causing pathogenesis in plants. Toxins are also known to playa significant role in inciting animal (human) and insect diseases and as plant growth regulators. Many common toxins have also been isolated from different microbes exhibiting a wide spectrum of biological activity. Toxins are broadly divisible into several characteristic groupings - polyketides, oxygen heterocyclic compounds, pyrons, terpenoidS, amino acids - diketopiperazines, polypeptides etc. Recent research has indicated that these toxins play an important role in plant pathogenesis, disease epidemics, plant breeding, biological control of plant pathogens and insect pests, induced resistance, plant-pathogen interactions etc. Toxins produced by weed pathogens are exploited as lead molecules in developing environmentally friendly herbicides.