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Author: O.R. Gottlieb
Publisher: Springer Science & Business Media
ISBN: 3642686419
Category : Science
Languages : en
Pages : 183
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Book Description
For several decades botanists have been impressed by the discovery that the distribution of secondary plant substances follows the general lines of plant relationships. However, it soon became clear that little was to be gained from the study of individual compounds and their natural distribu tion. Therefore, more comprehensive studies were attempt ed in which the secondary chemistry of a major plant group was carefully studied and evaluated in the broader context of comparative phytochemistry. Holger Erdtman's admir able work on Coniferae is the foremost example of this kind. Since then, there has been an upswing in the study of the biosynthesis of secondary plant substances and it has become quite customary to make use of biosynthetic knowledge in interpreting chemosystematic evidence. More over, since taxonomists have insisted that use be made of all potentially available evidence for building classifications, it has been claimed that chemosystematics too should con sider the whole array of constituents present in a major taxon. However, in practice it has proved difficult to utilize fully the potential of natural product chemistry and biosynthetic studies for plant systematics and evolution, because bota nists found themselves rather disorientated by the scattered, often hardly accessible chemical literature and the fact that the chemical evidence was difficult for them to evaluate! Although the pioneering work of E. C.
Author: O.R. Gottlieb
Publisher: Springer Science & Business Media
ISBN: 3642686419
Category : Science
Languages : en
Pages : 183
Get Book Here
Book Description
For several decades botanists have been impressed by the discovery that the distribution of secondary plant substances follows the general lines of plant relationships. However, it soon became clear that little was to be gained from the study of individual compounds and their natural distribu tion. Therefore, more comprehensive studies were attempt ed in which the secondary chemistry of a major plant group was carefully studied and evaluated in the broader context of comparative phytochemistry. Holger Erdtman's admir able work on Coniferae is the foremost example of this kind. Since then, there has been an upswing in the study of the biosynthesis of secondary plant substances and it has become quite customary to make use of biosynthetic knowledge in interpreting chemosystematic evidence. More over, since taxonomists have insisted that use be made of all potentially available evidence for building classifications, it has been claimed that chemosystematics too should con sider the whole array of constituents present in a major taxon. However, in practice it has proved difficult to utilize fully the potential of natural product chemistry and biosynthetic studies for plant systematics and evolution, because bota nists found themselves rather disorientated by the scattered, often hardly accessible chemical literature and the fact that the chemical evidence was difficult for them to evaluate! Although the pioneering work of E. C.
Author: Uwe Jensen
Publisher: Springer Science & Business Media
ISBN: 3709166128
Category : Science
Languages : en
Pages : 357
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Book Description
The volume presents current ideas about the systematics and evolution of the Ranunculiflorae and most of its constituent families. A strong effort has been made to integrate DNA and morphological, anatomical, etc. evidence, and new ideas about the origin and phylogeny of the entire group as well as the Berberidaceae, Lardizabalaceae, Ranunculaceae, and Papaveraceae are arrived at.
Author: Tod F. Stuessy
Publisher: Columbia University Press
ISBN: 0231147120
Category : Science
Languages : en
Pages : 566
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Book Description
The field of plant taxonomy has transformed rapidly over the past fifteen years, especially with regard to improvements in cladistic analysis and the use of new molecular data. The second edition of this popular resource reflects these far-reaching and dramatic developments with more than 3,000 new references and many new figures. Synthesizing current research and trends, Plant Taxonomy now provides the most up-to-date overview in relation to monographic, biodiversity, and evolutionary studies, and continues to be an essential resource for students and scholars. This text is divided into two parts: Part 1 explains the principles of taxonomy, including the importance of systematics, characters, concepts of categories, and different approaches to biological classification. Part 2 outlines the different types of data used in plant taxonomic studies with suggestions on their efficacy and modes of presentation and evaluation. This section also lists the equipment and financial resources required for gathering each type of data. References throughout the book illuminate the historical development of taxonomic terminology and philosophy while citations offer further study. Plant Taxonomy is also a personal story of what it means to be a practicing taxonomist and to view these activities within a meaningful conceptual framework. Tod F. Stuessy recalls the progression of his own work and shares his belief that the most creative taxonomy is done by those who have a strong conceptual grasp of their own research.
Author: Osmo Otto Paivio Hanninen; Mustafa Atalay; B.P. Mansourian; A. Wojtezak; S.M. Mahfouz; Harry Majewski; Elaine Elisabetsky; Nina L. Etkin; Ralph Kirby; T.G. Downing and M.I. El Gohary
Publisher: EOLSS Publications
ISBN: 1848263929
Category :
Languages : en
Pages : 386
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Book Description
Medical and Health Sciences is a component of Encyclopedia of Biological, Physiological and Health Sciences in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty one Encyclopedias. These volume set contains several chapters, each of size 5000-30000 words, with perspectives, applications and extensive illustrations. It carries state-of-the-art knowledge in the fields of Medical and Health Sciences and is aimed, by virtue of the several applications, at the following five major target audiences: University and College Students, Educators, Professional Practitioners, Research Personnel and Policy Analysts, Managers, and Decision Makers and NGOs.
Author: Max Hecht
Publisher: Springer Science & Business Media
ISBN: 1461569834
Category : Science
Languages : en
Pages : 480
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Book Description
Evolutionary Biology, of which this is the nineteenth volume, continues to offer its readers a wide range of original articles, reviews, and com mentaries on evolution, in the broadest sense of that term. The topics of the reviews range from anthropology and behavior to molecular biology and systematics. In recent volumes, a broad spectrum of articles have appeared on such subjects as natural selection among replicating molecules in vitro, mate recognition and the reproductive behavior in Drosophila, evolution of the monocotyledons, species selection, and the communication net work made possible among even distantly related genera of bacteria by plasmids and other transposable elements. Articles such as these, often too long for standard journals, are the stuff of Evolutionary Biology. The editors continue to solicit manuscripts on an international scale in an effort to see that everyone of the many facets of biological evolution is covered. Manuscripts should be sent to anyone of the following: Max K. Hecht, Department of Biology, Queens College of the City University of New York, Flushing, New York 11367; Bruce Wallace, Department of Biology, Virginia Polytechnic Institute and State University, Blacks burg, Virginia 24061; Ghillian T. Prance, New York Botanical Garden, Bronx, New York 10458. The Editors vII Contents 1. Discontinuous Processes in the Evolution of the Bacterial Genome ........................................ 1 Monica Riley Introduction ............................... ,........ 1 Internal Rearrangements ............................... 2 Large-Scale Internal Rearrangements . . . . . . . . . . . . . . . . . . . . 2 Small-Scale Rearrangements: Divergence of Duplicate Genes ......................................... 11 Interactions between Two Genomes ...................... 20 Transposons: Jumping Genes . . . . . . . . . . . . . . . . . . . . 20 . . . . . . Plasmids: Incorporation into Genomic DNA. . . . . . . . . . .. . . 23 .
Author: Michael Wink
Publisher: John Wiley & Sons
ISBN: 1444347918
Category : Science
Languages : en
Pages : 431
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Book Description
This brand new Annual Plant Reviews volume is the second edition of the highly successful and well-received Annual Plant Reviews, Volume 2. This exciting new volume provides an up-to-date survey of the biochemistry and physiology of plant secondary metabolism. The volume commences with an overview of the biochemistry, physiology and function of secondary metabolism, followed by detailed reviews of the major groups of secondary metabolites: alkaloids and betalains, cyanogenic glucosides, glucosinolates and nonprotein amino acids, phenyl propanoids and related phenolics, terpenoids, cardiac glycosides and saponins. A final chapter discusses the evolution of secondary metabolism. This carefully compiled new edition brings together chapters from some of the world's leading experts in plant secondary metabolism. Completely revised and brought right up to date with much new information, this volume is an essential purchase for advanced students, researchers and professionals in biochemistry, physiology, molecular biology, genetics, plant sciences, agriculture, medicine, pharmacology and pharmacy, working in the academic and industrial sectors, including those working in the pesticide and pharmaceutical industries. Libraries in all universities and research establishments where these subjects are studied and taught will need copies of this excellent volume on their shelves. A companion volume Annual Plant Reviews Volume 39, Functions and Biotechnology of Plant Secondary Metabolites, Second Edition, Edited by M. Wink, is also available.
Author: Elaine Elisabetsky
Publisher: EOLSS Publications
ISBN: 1905839960
Category : Pharmacognosy
Languages : en
Pages : 290
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Book Description
Ethnopharmacology is a component of Encyclopedia of Biological, Physiological and Health Sciences in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty one Encyclopedias. Ethnopharmacology is the scientific study correlating ethnic groups, their health, and how it relates to their physical habits and methodology in creating and using medicines. This Theme on Ethnopharmacology presents the field as an amalgam of perspectives, primarily those of pharmacology, pharmacognosy, anthropology, and botany. It highlights the uniquely biocultural perspective on ethnopharmacology offered by medical anthropology, which underscores that health and healing are culturally constructed and socially negotiated. The definition of ethnopharmacology that frames this volume is: the study of indigenous medical systems that connects the ethnography of health and healing with the physiological relevance of its medical practices. The history of botanical medicines is traced from primate self-medication to contributions to biomedicine. The methods of ethnopharmacologic inquiry are presented from pharmacologic, ecological, ethnographic, data management, and ethical perspectives. Chapters are devoted to plants used in the treatment of specific disorders: cancer, parasitic infection, AIDS, inflammation, diabetes, and cardiovascular and neurodegenerative disorders. The important role that plant medicines play in the developing world is revealed in discussion of ritual and ceremony, safety issues, health care, and biodiversity. These two volumes are aimed at the following a wide spectrum of audiences from the merely curious to those seeking in-depth knowledge: University and College students Educators, Professional practitioners, Research personnel and Policy analysts, managers, and decision makers and NGOs.
Author: Michael Wink
Publisher: CRC Press
ISBN: 9780849340857
Category : Science
Languages : en
Pages : 384
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Book Description
The secondary metabolites of plants were once considered to be waste products - today, their true value is understood. New methods of separation and structural elucidation, and advances in the investigation of biochemical activities, have increased our understanding of secondary metabolites. Their function as a defense mechanisms offers a great potential for technological gain. Secondary metabolites can be utilized in agriculture to breed stronger crops and in the manufacture of biorational pesticides. They can also be exploited by medicine as theraputic agents. And these are just two of the likely uses. This landmark volume presents articles by an impressive team of experts from leading laboratories. Each chapter considers a current understanding of secondary metabolites in nature and the potential exploitation of those qualities by the biotechnology industry.
Author: Bohm
Publisher: CRC Press
ISBN: 9789057023538
Category : Science
Languages : en
Pages : 520
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Book Description
Offering a wide ranging view of this important class of plant pigments, after a brief examination of the history & literature of flavonoids, this book explores structural variation of all subclasses of flavonoids, techniques for isolation, purification, & determination of structures, chemical syntheses, biosynthesis & genetics, patterns of distribution in the plant kingdom, & uses. Lastly, the functions of flavonoids in nature are investigated, as well as ways in which these compounds may have a more direct impact upon the human race. Contents: Introduction & Historical Perspective * Structural Variation * Occurrence & Distribution of Flavonoids * Extraction, Purification, & Identification of Flavonoids * Synthesis & Interconversions of Flavonoids * Biosynthesis & Genetics * Flavonoid Functions in Nature * Human Uses of Flavonoids
Author: José Justino
Publisher: BoD – Books on Demand
ISBN: 953513423X
Category : Science
Languages : en
Pages : 486
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Book Description
Flavonoids are abundant secondary metabolites found in plants and fungi that have various roles in these organisms, including pigmentation, cell signalling, plant defence and inter-organism communication. Due to their abundance in nature, flavonoids are also important components of the human diet, and the last four decades have seen an intense study focused on the structure characterization of flavonoids and on their roles in mammal metabolism. This book reviews most of the well-established activities of flavonoids, and we also present more recent research studies on the area of flavonoids, including the chemical aspects of structure characterization of flavonoids, the biosynthesis of flavonoids in model plants as well as their role in abiotic stress situations and in agriculture, the role of flavonoids in metabolism and health and their importance in foods, from consumption to their use as bioactive components.
