Author: V. C. Runeckles
Publisher: Elsevier
ISBN: 1483220028
Category : Science
Languages : en
Pages : 252
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Book Description
Recent Advances in Phytochemistry, Volume 6: Terpenoids: Structure, Biogenesis, and Distribution covers the advances in the chemistry and biochemistry of terpenoids, and the use of information regarding the occurrence of such compounds in genetics and population ecology. The book discusses the applications of physical methods to some structural and stereochemical problems in terpenes and steroids; novel sesquiterpenes isolated in composites; and the chemistry and biogenesis of the quassinoids (Simaroubolides). The text then describes the recent developments in the biosynthesis of plant triterpenes; the mechanisms of indole alkaloid biosynthesis, recognition of intermediacy and sequence by short-term incubation; and the biochemistry and physiology of lower terpenoids. The genetic and biosynthetic relationships of monoterpenes; and the confirmation of a clinal pattern of chemical differentiation in Juniperus virginiana from terpenoid data obtained in successive years are also encompassed. Botanists, biochemists, and people involved in the study of phytochemistry will find the book invaluable.
Author: Shagufta Perveen
Publisher: BoD – Books on Demand
ISBN: 1789847761
Category : Science
Languages : en
Pages : 154
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Book Description
Terpenes belong to the diverse class of chemical constituents isolated from materials found in nature (plants, fungi, insects, marine organisms, plant pathogens, animals and endophytes). These metabolites have simple to complex structures derived from Isopentyl diphosphate (IPP), dimethyl allyl diphosphate (DMAPP), mevalonate and deoxyxylulose biosynthetic pathways. Terpenes play a very important role in human health and have significant biological activities (anticancer, antimicrobial, anti-inflammatory, antioxidant, antiallergic, skin permeation enhancer, anti-diabetic, immunomodulatory, anti-insecticidal). This book gives an overview and highlights recent research in the phytochemical and biological understanding of terpenes and terpenoid and explains the most essential functions of these kinds of secondary metabolites isolated from natural sources.
Author: P. B. Tomlinson
Publisher: Cambridge University Press
ISBN: 9780521142472
Category : Medical
Languages : en
Pages : 700
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Book Description
This book assesses the scientific knowledge of tropical tree biology set against a background of community ecology and forest structure.
Author: David S. Seigler
Publisher: Springer Science & Business Media
ISBN: 1461549132
Category : Science
Languages : en
Pages : 766
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Book Description
Life has evolved as a unified system; no organism exists similar role also has been suggested for fatty acids from alone, but each is in intimate contact with other organisms cyanolipids. Nonprotein amino acids, cyanogenic glyco and its environment. Historically, it was easier for workers sides, and the non-fatty-acid portion of cyanolipids also are in various disciplines to delimit artificially their respective incorporated into primary metabolites during germination. areas of research, rather than attempt to understand the entire Secondary metabolites of these structural types are accumu system of living organisms. This was a pragmatic and neces lated in large quantities in the seeds of several plant groups sary way to develop an understanding for the various parts. where they probably fulfill an additional function as deter We are now at a point, however, where we need to investi rents to general predation. gate those things common to the parts and, specifically, those The second type of relationship involves interaction of things that unify the parts. The fundamental aspects of many plants with other organisms and with their environment. Bio of these interactions are chemical in nature. Plants constitute logical interactions must be viewed in the light of evolution an essential part of all life systems; phytochemistry provides ary change and the coadaptation, or perhaps coevolution, of a medium for linking several fields of study.
Author: Geoffrey Eglinton
Publisher: Springer Science & Business Media
ISBN: 3642877346
Category : Science
Languages : en
Pages : 850
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Book Description
For many years, the subject matter encompassed by the title of this book was largely limited to those who were interested in the two most economically important organic materials found buried in the Earth, namely, coal and petroleum. The point of view of any discussions which might occur, either in scientific meetings or in books that have been written, was, therefore, dominated largely by these interests. A great change has occurred in the last decade. This change had as its prime mover our growing knowledge of the molecular architecture of biological systems which, in turn, gave rise to a more legitimate asking of the question: "How did life come to be on the surface of the Earth?" A second motivation arose when the possibilities for the exploration of planets other than the Earth-the moon, Mars, and other parts of the solar system-became a reality. Thus the question of the possible existence of life elsewhere than on Earth conceivably could be answered.
Author: Gerd Bendz
Publisher: Elsevier
ISBN: 0323162517
Category : Science
Languages : en
Pages : 322
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Book Description
Medicine and Natural Sciences: Chemistry in Botanical Classification contains the proceedings of the Twenty-Fifth Nobel Symposium held in Sodergarn, Sweden, on August 20-25, 1973. The papers explore the chemical approach to plant classification and cover topics ranging from chemosystematics and applications of special classes of compounds to insects and plant chemotaxonomy. Biosynthetic pathways in chemical phylogeny and some aspects of organic geochemistry are also discussed. This book is comprised of 32 chapters divided into five sections. The first chapter provides an overview of the chemical approach to botanical classification, with special reference to the higher taxa of Magnoliophyta. The reader is then introduced to chemosystematics and the construction of phylogenetic schemes, as well as the use of a chemical character for the classification of living organisms. The following chapters focus on The chemistry of disjunct taxa; homology of biosynthetic routes; and applications of special classes of compounds such as flavonoids. The systematic distribution of ellagitannins in relation to the phylogeny and classification of the angiosperms is also considered. The final chapter describes phytochemical and biological procedures for screening of plant materials. This monograph will be of value to botanists, plant taxonomists, and chemists.
Author: Sukh Dev
Publisher: CRC Press
ISBN: 1351089676
Category : Science
Languages : en
Pages : 966
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Book Description
This Handbook, pinpoints salient features of known information about Terpenoids in a readily accessible and readable format. Terpenoids have singularly enriched organic chemistry by its variety of structural types, by its wealth ofunexpected reactions, rearrangements and spectral features, and by offering exciting targets for synthesis. Much imaginative experimental work has been invested in exploring their natural pathways. Recent years have revealed an increasingly important biological and ecological role for several of its members.
Author: Reinhard Jetter
Publisher: Springer
ISBN: 3319203975
Category : Science
Languages : en
Pages : 221
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Book Description
This text provides both review and primary research articles for a broad audience of biologists, chemists, biochemists, pharmacologists, clinicians and nutrition experts, especially those interested in the biosynthesis, structure, function and/or bioactivity of plant natural products. Recurring themes include the evolution and ecology of specialized metabolites, the genetic and enzymatic mechanisms for their formation and metabolism, the systems biology study of their cell/tissue/organ context, the engineering of plant natural products, as well as various aspects of their application for human health. In addition to analysis of current research, new developments in the techniques used to study plant natural products are presented and discussed, taking a detailed look at structure elucidation and quantification, “omic” (genomic/ proteomic/ transcriptomic/ metabolomics) profiling or for microscopic localization. In short, this series combines chapters from researchers that explain and discuss current topics in the most exciting new research in phytochemistry.
Author: H.K. Wagner
Publisher: Springer Science & Business Media
ISBN: 3642666825
Category : Medical
Languages : en
Pages : 299
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Book Description
The fact that, of the approximately 600,000 plant species existing on the earth, only some 5 % have been specifically investigated chemically or pharmacologi cally, is a challenge to chemists spezializing in na tural substances and to pharmacologists. In view of the limited number of research capacities and the ever diminishing financial means, this challenge can only be met if, together with an improvement and refinement of methods of analysis, medicinal plant research is carried out on a broader interdisciplinary basis, with comparable, scientifically recognized screening methods, and if it is better coordinated, with greater use of modern documentation means. It is thus necessary in the future to concentrate specifically on projects leading to the development of new medicinal prepara tions. The plenary lectures hold in the present symposium of the 1st International Congress for Research on Medi cinal Plants reflect these efforts and tendencies. At the same time they provide a survey of some of the fields of medicinal plant research which are at present most actual and most intensively researched. They range from plant screening, isolation and structure eluci dation of new principles, to the therapeutical opti mization of a natural product. The lectures given at this congress show clearly the necessity, in addition to national phytochemical so cieties, for a central international organisation, in which all active medicinal plant researchers in the world are included. Their aim should be to provide the impulse for more optimal, rational research, aimed at the solution of specific projects.
Author: National Library of Medicine (U.S.)
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 1256
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Book Description
First multi-year cumulation covers six years: 1965-70.
