Lipids and Lipid Polymers in Higher Plants


Book Description

This book contains a number of papers dealing with the main topics of a Symposium on "Lipids and Lipid Polymers in Higher Plants", held in July 1976 at the Botanical Institute of the University of Karlsruhe. The symposium was organized by Professors E. Heinz, H.K. Lichtenthaler, H.K. Mangold, and M. Tevini. The sponsorship by the Deutsche Forschungsgemeinschaft and the Erwin-Riesch-Stiftung is gratefully acknowledged. The intention of the Symposium was to bring together in one place scientists working in very different fields of plant lipids, such as fatty acids, glycolipids, phospholipids, prenyllipids, sterols, and lipid polymers. The emphasis was placed on biosynthesis, distribution, function, and physiology of the various higher plant lipids and their role in biomembranes and epidermal cell walls. By combining the major contributions in this book, we hope to give all plant scientists access to the recent developments in biochemistry and physiology of plant lipid metabolism. The editors are very grateful to the contributors, who have taken great care to present up-to-date reviews. Karlsruhe, May 1977 M. TEVINI H.K. LICHTENTHALER Contents Section 1. Function, Organization and Lipid Composition of Biomembranes Chapter 1. Functional Organization of Biomembranes P. SITTE (With 15 Figures) A. Introduction. . . . . 1 B. Membrane Functions . 2 I. Membrane Diversity 2 II. Membranes as Barriers 4 III. Lipids and Permeability . 5 IV. Specific Transport . . . 8 V. Membrane Flow and Membrane Families 9 VI. General Principles of Cellular Compartmentation 10 C. Membrane Biogenesis. . . . . . . . . . . . .




The Structure, Biosynthesis, and Degradation of Wood


Book Description

Forest trees constitute one of the major resources of the world and their utilization, either for structural purposes or for the materials which they yield, dates back to antiquity. Over the centuries, the exploitation of this resource has become progressively more sophisticated, and, in many parts of the world has led to the development of highly complex forest-based industries. The research and development work which led to these industrial uses fostered the formation of numerous technical societies and associations, which, through their meetings and publi cations, have facilitated communication and the exchange of ideas. Over the years, there have been numerous symposia devoted to wood and the many facets of its properties and utilization. However, rarely has the emphasis in such symposia been placed upon the living tree and the changes which it undergoes in relation to its ultimate utilization. Hence the Phytochemical Society of North America arranged the symposium, "The Structure, Biosynthesis, and Degradation of Wood", held at the University of British Columbia in August, 1976. the contributions to which form the basis of the present volume.




Lipids: Structure and Function


Book Description

The Biochemistry of Plants: A Comprehensive Treatise, Volume 4: Lipids: Structure and Function provides information pertinent to the fundamental aspects of plant lipid biochemistry. This book covers a variety of topics, including oxidative enzymes, glyoxylate cycle, lipoxygenases, ethylene biosynthesis, phospholipids, and carotenoids. Organized into 19 chapters, this volume begins with an overview of the different techniques for use in the analysis of plant lipids. This text then outlines the concepts of membrane lipid structure and discusses the relationship between membrane lipid structure and function. Other chapters consider the role that lipid structure plays in regulating physiological function. This book discusses as well the biochemical mechanism by which the double bond is introduced in the biosynthesis of ethylene. The final chapter deals with the results of studies on the biosynthesis of cyclopropanoid, cyclopropenoid, and cyclopentenyl fatty acids in higher plants. This book is a valuable resource for plant biochemists, neurobiochemists, molecular biologists, senior graduate students, and research workers.




Lipid Metabolism in Plants


Book Description

This text presents a comprehensive description of the fundamental principles of plant lipid metabolism and then uses this base to examine current research in the field. The importance of molecular biology and the incorporation of new analytical methods are discussed, and the contributions of current research to agricultural and industrial uses are covered in depth. Chapters are illustrated with tables and figures to support key concepts, and projections for future researc in the field are also explored.




The Lipid Handbook, Second Edition


Book Description

A great deal of research has been carried out on this important class of compounds in the last ten years. To ensure that scientists are kept up to date, the editors of the First Edition of The Lipid Handbook have completely reviewed and extensively revised their highly successful original work. The Lipid Handbook: Second Edition is an indispensable resource for anyone working with oils, fats, and related substances.




Causes of Photooxidative Stress and Amelioration of Defense Systems in Plants


Book Description

In an attempt to improve communication between disciplines in this field, we have aimed to cover what we perceive to be all relevant aspects of photooxidative stress: from primary reactions to molecular genetics and the devising of strategies for engineering stress tolerance in plants. We hope to achieve a forum for new ideas, concepts, and approaches. The intellectual challenge also arose because we wished to produce a work that was accessible to both specialist and nonspecialist. We have encouraged our authors to provide personal perspectives of their topics while discussing them in depth. To this end, the nonspecialist will find that some chapters include relatively simple introductions and conclusions, e.g., Foyer and Harbinson (Chapter 1); Gressel and Galun (Chapter 10).




Progress in Lipid Research


Book Description

Progress in Lipid Research, Volume 18 focuses on the advancements of processes, methodologies, and approaches involved in lipid research. The selection first elaborates on lipid composition of marine and estuarine invertebrates; role of acylcoenzyme A: cholesterol O-acyltransferase in cholesterol metabolism; and synthesis of acyl lipids in plant tissues. Discussions focus on fatty acid synthesis, turnover of complex lipids, arterial wall and atherosclerosis, cholesteryl ester metabolism, and solubilization. The text then examines the effects of ethanol ingestion on lipid metabolism, including fatty acid oxidation and ketogenesis, lipid peroxidation, plasma triacylglycerols and lipoproteins, phospholipid metabolism, and cholesterol and bile acids. The publication takes a look at lipid metabolism in liver and selected tissues and in the whole body of ruminant animals and the effect of caval shunts on lipid metabolism. Topics include adaptation and regulation of lipid metabolism in the whole animal, lipid metabolism in specific tissues, and the effects of caval shunts on tissue lipids. The text also ponders on lipid metabolism in the neonatal ruminant, as well as transfer of lipids across the placenta, maternal contribution to fetal lipid requirements, and placental lipid metabolism. The selection is a dependable source of data for readers interested in lipid research.




Biopolyesters


Book Description

Living systems synthesize seven different classes of polymers. They provide structure and form for cells and organisms, function as catalysts and energy storage and carry the genetic information. All these polymers possess technically interesting properties. Some of these biopolymers are already used commercially. This special volume of Advances in Biochemical Engineering/Biotechnology comprises 10 chapters. It gives an overview of the water insoluble biopolyesters, in particular of the microbially synthesized poly-hydroxyalkanoate (PHA) family. It reports the state of the art of metabolism, regulation and genetic background, the latest advances made in genetic optimization of bacteria, "construction" of transgenic plants and in vitro synthesis by means of purified enzymes. Furthermore, it describes relevant technologies and evaluates perspectives concerning increasing the economic viability and competitiveness of PHA and discusses applications in medicine, packaging, food and other fields.







The Biochemistry of the Carotenoids


Book Description

The carotenoids are not only amongst the most widespread of the naturally occurring groups of pigments, but probably also have the most varied functions; witness their known roles in photokinetic responses of plants, in phototropic responses of fish and as vitamin A precursors in mammals and birds. Pigments with such wide distribution and such diverse functions are obviously of great interest to biological scientists with very different specializa tions, especially as it is unlikely that the study of the functions of carotenoids is anywhere near complete. The primary aim of the present work is to discuss the distribution, bio genesis and function of the carotenoids throughout the plant and animal kingdoms in such a way that, because of, rather than in spite of its bio chemical bias, it will be of value to workers interested in all the biological aspects of these pigments. The biochemical approach is considered the most effective because, generally speaking, most progress in the study of carotenoids in living material has been achieved using biochemical techniques, be they applied by zoologists, botanists, entomologists, microbiologists or other specialists; what is even more important is that a consideration of the present position makes it certain that further fundamental progress will also be made along biochemical lines.