The lytic compartment of plant cells
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Bibliographic Information
The lytic compartment of plant cells
（Cell biology monographs, v. 1）
Springer-Verlag, c1975
- U.S.
- Wien
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Wien464.1/Ce/19200441211
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Includes bibliography and index
Description and Table of Contents
Description
Almost twenty years ago DE DuvE discovered the existence in rat liver cells of a novel class of subcellular structures which he termed lysosomes. As the lysosomes are the seat of various hydrolytic enzymes this discovery greatly stimulated the interest in cellular digestive processes. It is now recognized that compartmentation of hydrolases is an outstanding example of the dependence of metabolic functions on cell structure. The important role of lytic processes in plant metabolism made it interesting to correlate the facts on the various phenomena and present them from the point of view of cellular compartmentation. It is not intended to survey in extenso the litera- ture on the various aspects of localization and function of hydrolases in plant cells as this would be an impossible task. The aim of this monograph is to emphasize the significance of hydrolase compartmentation rather than to strive for complete coverage of work on hydrolases in which other viewpoints have been considered. I thank Miss SONIA TURLER for her great help with the manuscript. I also wish to acknowledge the assistance given by Dr. ELSA HAUSERMANN, Mrs. DORLI FURRER, and Mrs. SILVIA STUNZI.
Moreover, I am indebted to my collaborators and particularly to my colleague Dr. A. WIEMKEN for frequent and stimulating discussions on the subject. Zurich (Switzerland), February 1975 PH. MATILE Contents Abbreviations . XIII Introduction: Lysis and the Lytic Compartment. 1 1. Hydrolases and their Localization ...3 1. 1. Classification and Properties of Hydrolases 3 1. 1. 1. Peptidases ...
Table of Contents
Introduction: Lysis and the Lytic Compartment.- 1. Hydrolases and their Localization.- 1.1. Classification and Properties of Hydrolases.- 1.1.1. Peptidases.- 1.1.2. Esterases.- 1.1.2.1. Phosphomonoesterases.- 1.1.2.2. Phosphodiesterases.- 1.1.2.3. Acylesterases.- 1.1.3. Glycosidases.- 1.1.4. General Remarks.- 1.2. External and Internal Locations of Hydrolases.- 1.3. Extracellular Release of Hydrolases.- 1.4. Hydrolases Associated with Cell Walls.- 1.4.1. Demonstration and Estimation of Hydrolases Associated with the Cell Wall.- 1.4.2. Binding of Hydrolases to Cell Walls.- 1.5. Lysosomes.- 1.5.1. Cytochemical and Biochemical Approaches.- 1.5.2. Vacuoles.- 1.5.2.1. Isolation of Vacuoles.- 1.5.2.2. Lysosomal Nature of Isolated Vacuoles.- 1.5.3. Aleurone Bodies.- 1.5.4. Spherosomes.- 2. Origin and Development of the Lytic Compartment.- 2.1. Ontogeny and Development of Vacuoles.- 2.1.1. Vacuolation.- 2.1.2. Involvement of the Golgi-Complex in Vacuolar Development.- 2.1.3. Origin and Development of Aleurone Vacuoles.- 2.2. Origin and Development of Spherosomes.- 2.3. Structures Involved in Hydrolase Secretion.- 2.4. Origin and Intracellular Transport of Hydrolases.- 2.5. The Lytic Compartment of Animal and Plant Cells.- 3. Functions of the Lytic Compartment.- 3.1. Autophagy and Autolysis.- 3.1.1. Turnover in Biochemical Differentiation.- 3.1.2. Senescence.- 3.1.3. Autophagy.- 3.1.4. Autophagy in Cellular Differentiation and Senescence.- 3.1.5. Heterophagy in Plant Cells?.- 3.1.6. Autolysis and Cell Death.- 3.2. Storage and Mobilization.- 3.2.1. Intracellular Digestion of Reserves.- 3.2.1.1. Accumulation and Mobilization in Aleurone Vacuoles.- 3.2.1.2. Spherosomes and Neutral Fat.- 3.2.2. Extracellular Digestion of Reserves.- 3.3. Cell Wall Lysis in Development.- 3.3.1. Cell Wall Metabolism in Growing Cells.- 3.3.2. Senescence, Fruit-Ripening and Abscission.- 3.3.3. Cell Wall Lysis in Differentiating Cells.- 3.4. Cell Wall Degradation in Parasitism.- 3.5. Lysosomal Involvement in Plant Pathology.- 4. Control of Lysis.- 4.1. Seed Germination.- 4.2. Growth and Differentiation.- 4.3. Control of Senescence and Abscission.- 4.4. Control of Hydrolase Production in Fungi.- Retrospect: "Life's Irreducible Structure".
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