Plants possess the ability to biosynthesize a large variety of steroids, but it was not until 1979 that a hormonal function was demonstrated in plants. Today, about 40 structurally and functionally related steroids, known as brassinosteroids, have been isolated from natural sources. Brassinosteroids demonstrate various kinds of regulatory activities in the growth and development of plants. This book is based on a 1990 Russian monograph, but includes all important subsequent literature and developments, including unpublished data from the authors' laboratories. Key Features * BRASSINOSTEROIDS: A New Class of Plant Hormones covers: * Structures and classification * Isolation and spectroscopic determination * Biosynthesis and metabolism * Natural product synthesis * Physiological mode of action * Structure-activity relationships * Practical applications in agriculture.

Introduction. Brassionsteroids (BS) in Nature. Isolation and Identification. Spectral Properties. Biosynthesis and Metabolism. Basic Synthetic Methods and Formal Synthesis. Synthesis of Natural BS. Synthesis of BS Analogs. Physiological Mode of Action of BS. Bioassays and Structure-Activity Relationship of BS. Practical Applications and Toxicology. Subject Index.

Includes bibliographical references (pages 373-444) and index.

I. Introduction -- II. Brassinosteroids (BS) in nature -- III. Isolation and identification -- IV. Spectral properties -- V. Biosynthesis and metabolism -- VI. Basic synthetic methods and formal syntheses -- VII. Syntheses of natural BS -- VII[I]. Syntheses of BS analogs -- IX. Physiological mode of action of BS -- X. Bioassays and structure-activity relationships -- XI. Practical applications and toxicology.

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