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Plant Membranes : A biophysical approach to structure, development and senescence - Ya'acov Y. Leshem

Plant Membranes

A biophysical approach to structure, development and senescence

Hardcover

Published: 31st March 1992
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The plasma membrane is at once the window through which the cell senses the environment and the portal through which the environment influences the structure and activities of the cell. Its importance in cellular physiology can thus hardly be overestimated, since constant flow of materials between cell and environment is essential to the well-being of any biological system. The nature of the materials mov­ ing into the cell is also critical, since some substances are required for maintenance and growth, while others, because of their toxicity, must either be rigorously excluded or permitted to enter only after chemical alteration. Such alteration frequently permits the compounds to be sequestered in special cellular compartments having different types of membranes. This type of homogeneity, plus the fact that the wear and tear of transmembrane molecular traffic compels the system to be constantly monitored and repaired, means that the membrane system of any organism must be both structurally complex and dy­ namic. Membranes have been traditionally difficult to study because of their fragility and small diameter. In the last several decades, however, remarkable advances have been made because of techniques permit­ ting the bulk isolation of membranes from homogenized cells. From such isolated membranes have come detailed physical and chemical analyses that have given us a detailed working model of membrane. We now can make intelligent guesses about the structural and func­ tional interactions of membrane lipids, phospholipids, proteins, sterols and water.

Introduction
The Building Blocks of the Membrane
Membrane Fatty Acyl Tailgroups
Glycerolipid and Sphingolipid Headgroups
Sterols
Membrane Proteins
Membrane Water
Biophysical Aspects of Membrane Structure and Function
Plant Membrane Biophysics in Development and Senescence
The Membrane in Action
The Role of Calcium in the Membrane
Membrane-Associated Phospholytic and Lipolytic Enzymes
Responses of Plant Membranes in Chilling and Freezing
The Tonoplast and Plasma Membrane of Guard Cells
Signal Transduction, Ca2+-triggered Membrane Glycerolipid Turnover and Growth/Senescence Equilibria
Epilogue
List of Abbreviations
Subject Index
Table of Contents provided by Publisher. All Rights Reserved.

ISBN: 9780792313533
ISBN-10: 0792313534
Audience: Professional
Format: Hardcover
Language: English
Number Of Pages: 266
Published: 31st March 1992
Publisher: Springer
Country of Publication: NL
Dimensions (cm): 23.5 x 15.5  x 1.8
Weight (kg): 0.69