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This is the first of the set of three volumes in the Encyclopedia of Plant Physiology, New Series, that will cover the area of the hormonal regulation of plant growth and development. The overall plan for the set assumes that this area of plant physiology is sufficiently mature for a review of current knowledge to be organized in terms of unifying principles and processes. Reviews in the past have generally treated each class of hormone individually, but this set of volumes is subdivided according to the properties common to all classes. Such an organization permits the examination of the hypothesis that differing classes of hormones, acting according to common principles, are determinants of processes and phases in plant development. Also in keeping with this theme, a plant hormone is defined as a compound with the properties held in common by the native members of the recognized classes of hormone. Current knowledge of the hormonal regulation of plant development is grouped so that the three volumes consider advancing levels of organizational complexity, viz: molecular and subcellular; cells, tissues, organs, and the plant as an organized whole; and the plant in relation to its environment. The present volume treats the molecular and subcellular aspects of hormones and the processes they regulate. Although it deals with chemically distinct classes of hormone, this volume stresses properties and modes of studying them, that are common to all classes.
List of contents
1 Plant Hormones and Other Growth Substances - Their Background, Structures and Occurrence (With 10 figures).- 1.1 Introduction.- 1.2 Ethylene.- 1.3 Auxins.- 1.4 Gibberellins.- 1.5 Cytokinins.- 1.6 Abscisic Acid and Related Compounds.- 1.7 Other Plant Constituents Which Affect Plant Growth.- References.- 2 Extraction, Purification, and Identification (With 38 figures).- 2.1 Methods of Extraction, Purification, and Isolation.- 2.2 Identification Without Isolation.- References.- 3 Quantitative Analysis of Plant Hormones.- 3.1 Introduction.- 3.2 Theoretical Considerations.- 3.3 Assays.- 3.4 Chromatographic Procedures.- 3.5 Internal Standards.- 3.6 Analytical Procedures.- 3.7 Summary.- 3.8 List of Symbols.- References.- 4 Biosynthesis and Metabolism of Plant Hormones.- 4.1 Biosynthetic Pathways.- 4.2 Metabolism (Interconversion and Catabolism).- 4.3 Conjugation.- 4.4 Localization of Biosynthesis and Metabolism.- References.- 5 Molecular and Subcellular Aspects of Hormone Action.- 5.1 Introduction.- 5.2 Auxins.- 5.3 Cytokinins.- 5.4 Gibberellins.- 5.5 Abscisic Acid.- 5.6 Ethylene.- 5.7 Concluding Remarks.- References.- 6 Molecular Effects of Hormone Treatment on Tissue.- 6.1 Introduction.- 6.2 Effects of Hormones on Processes Involved in Growth.- 6.3 Effects of Growth Regulators on Ion Transport and Regulation of Membrane Properties.- 6.4 Effects of Hormones on Non-Growing Systems.- 6.5 Effects of Hormones on Differentiating Systems.- 6.6 Conclusions.- References.- Author Index.
