Download or read book Chemical Studies on Lichens 4 written by Johan Santesson and published by . This book was released on 1967 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lichen Secondary Metabolites written by Branislav Ranković and published by Springer. This book was released on 2019-07-26 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: This revised and extended edition provides in-depth insights into the benefits and untapped potential of lichen-derived bioactive compounds. The whole spectrum of these compounds’ biological and medical functions, from antibiotic to antiviral and anti-carcinogenic properties, is presented. In addition, a new chapter discusses the anti-neurodegenerative and anti-diabetic activities of lichenic secondary metabolites. Given its scope, the book offers a valuable asset for students and researchers in this field.
Download or read book Recent Advances in Lichenology written by Dalip Kumar Upreti and published by Springer. This book was released on 2016-10-14 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses in detail molecular, mycobiont culture, biomonitoring and bioprospection of lichens, providing insights into advances in different fields of lichenology by applying modern techniques and approaches and examining how their application has enhanced or changed classical approaches. It offers a valuable resource, especially for beginners, students and researchers from different academic backgrounds interested in the study of lichens. In recent years, the introduction of modern analytical techniques and approaches has significantly improved our understanding of the environment, including lichens. Lichens are unique organisms which possess untapped potential as effective and reliable bioindicators, sources of therapeutic phytochemicals, and as excellent extremophiles. The unique and peculiar characteristics of lichens underline the need for a multidimensional approach to explore their potential in various fields of environment science, botany and chemistry. Modern techniques, especially molecular techniques, have greatly enriched the field of lichen taxonomy and its position in the plant kingdom, revealing little-known species and exploring their evolutionary history, while multivariate analysis and GIS approaches have established lichens as an ideal and reliable tool for monitoring air pollution. Advanced culture techniques have expanded the pharmacological applications of lichens, which was formerly restricted due to their small biomass. The advent of sophisticated analytical instrumentation has now facilitated the isolation and characterization of lichens’ bioactive constituents, even in lower concentrations, as well as the estimation of their stress responses at different levels of pollution. As lichen diversity is adversely affected by increasing air pollution, there is a pressing need to develop effective management practices to conserve, restore and document lichen diversity.
Download or read book Chemical Studies on Lichens 6 written by Johan Santesson and published by . This book was released on 1967 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Advances in Lichenology written by Dalip Kumar Upreti and published by Springer. This book was released on 2015-02-09 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses in detail molecular, mycobiont culture, biomonitoring and bioprospection of lichens, providing insights into advances in different fields of lichenology by applying modern techniques and approaches and examining how their application has enhanced or changed classical approaches. It offers a valuable resource, especially for beginners, students and researchers from different academic backgrounds interested in the study of lichens. In recent years, the introduction of modern analytical techniques and approaches has significantly improved our understanding of the environment, including lichens. Lichens are unique organisms which possess untapped potential as effective and reliable bioindicators, sources of therapeutic phytochemicals, and as excellent extremophiles. The unique and peculiar characteristics of lichens underline the need for a multidimensional approach to explore their potential in various fields of environment science, botany and chemistry. Modern techniques, especially molecular techniques, have greatly enriched the field of lichen taxonomy and its position in the plant kingdom, revealing little-known species and exploring their evolutionary history, while multivariate analysis and GIS approaches have established lichens as an ideal and reliable tool for monitoring air pollution. Advanced culture techniques have expanded the pharmacological applications of lichens, which was formerly restricted due to their small biomass. The advent of sophisticated analytical instrumentation has now facilitated the isolation and characterization of lichens’ bioactive constituents, even in lower concentrations, as well as the estimation of their stress responses at different levels of pollution. As lichen diversity is adversely affected by increasing air pollution, there is a pressing need to develop effective management practices to conserve, restore and document lichen diversity.
Download or read book Co Evolution of Secondary Metabolites written by Jean-Michel Mérillon and published by Springer. This book was released on 2020-02-24 with total page 973 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Reference Work is devoted to plant secondary metabolites and their evolutionary adaptation to different hosts and pests. Secondary metabolites play an important biological role in plants’ defence against herbivores, abiotic stresses and pathogens, and they also attract beneficial organisms such as pollinators. In this work, readers will find a comprehensive review of the phytochemical diversity, modification and adaptation of secondary metabolites, and the consequences of their co-evolution with plant parasites, pollinators, and herbivores. Chapters from expert contributors are organised into twelve sections that collate the current knowledge in intra-/inter-specific diversity in plant secondary metabolites, changes in secondary metabolites during plants’ adaptation to different environmental conditions, and co-evolution of host-parasite metabolites. Among the twelve themed parts, readers will also discover expert analysis on the genetics and chemical ecology evolution of secondary metabolites, and particular attention is also given to allelochemicals, bioactive molecules in plant defence and the evolution of sensory perception in vertebrates. This reference work will appeal to students, researchers and professionals interested in the field of plant pathology, plant breeding, biotechnology, agriculture and phytochemistry.
Download or read book Chemistry Biology and Pharmacology of Lichen written by Ashoke Kumar Das and published by John Wiley & Sons. This book was released on 2024-06-10 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understand the properties and applications of one of the world’s most ubiquitous flora Lichen is a single entity comprising two or more organisms—most typically algae and fungus—in a symbiotic relationship. It is one of the planet’s most abundant categories of flora, with over 25,000 known species across all regions of the globe. Lichens’ status as a rich source of bioactive metabolites and phytochemicals, as well as their potential as bio-indicators, has given them an increasingly prominent role in modern research into medicine, cosmetics, food, and more. Chemistry, Biology and Pharmacology of Lichen provides a comprehensive overview of these bountiful flora and their properties. It provides not only in-depth analysis of lichen physiology and ecology, but also a thorough survey of their modern and growing applications. It provides all the tools readers need to domesticate lichen and bring their properties to bear on some of humanity’s most intractable scientific problems. Chemistry, Biology and Pharmacology of Lichen readers will also find: Applications of lichen in fields ranging from food to cosmetics to nanoscience and beyond Detailed discussion of topics including lichen as habitats for other organisms, lichens as anticancer drugs, antimicrobial properties of lichen, and many more Detailed discussion on key bioactive compounds from lichens Chemistry, Biology and Pharmacology of Lichen is ideal for scientists and researchers in ethnobotany, pharmacology, chemistry, and biology, as well as teachers and students with an interest in biologically important lichens.
Download or read book Identification of Lichen Substances written by Siegfried Huneck and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook is an indispensable tool for the isolation, identification and structural analysis of the approx. 700 substances currently known to occur in lichens. The first part covers all necessary methods for the analysis of lichen metabolites; the second part gives the analytical and spectroscopical data of all known lichen substances as well as a key to their identification and differentiation. Besides its high value for all chemists working with these substances as a basis for other products, the book serves as a chemotaxonomical key to the identification of lichen species and as a reference for all those who use lichens for the biomonitoring of environmental pollution.
Download or read book Progress in the Chemistry of Organic Natural Products written by and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this ASI was to bring together specialists in several complex variables (many of whom have contributed to complex potential theory) and specialists in potential theory (all of whom have contributed to several complex variables) together with young researchers and graduate students for an interchange of ideas and techniques. Not only was the status of current research presented, but also the relevant background, much of which is not yet available in books. The following topics and interconnections among them were discussed: 1. Real and Complex Potential Theory. Capacity and approximation, basic prop erties of plurisubharmonic functions and methods to manipulate their singularities and study their growth, Green functions, Chebyshev-type quadratures, electrostatic fields and potentials, propagation of smallness. 2. Complex Dynamics. Review of complex dynamics in one variable, Julia sets, Fatou sets, background in several variables, Henon maps, ergodicity, use of potential theory and multifunctions. 3. Banach Algebras and Infinite Dimensional Holomorphy. Analytic multi functions, spectral theory, analytic functions on a Banach space, semigroups of holomor phic isometries, Pick interpolation on uniform algebras and Von Neumann inequalities for operators on a Hilbert space. The basic notion of complex potential theory is that of a plurisubharmonic function.
Download or read book Chemical studies on lichens written by and published by . This book was released on 1969 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lichen Derived Products written by Mohd Yusuf and published by John Wiley & Sons. This book was released on 2020-09-01 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this book is to provide reference material that includes current developments along with a future outlook on the topic. It is divided into two sections; "Morphological Overview and Extraction Prospects" and "Trends and Applications". Part I contains four chapters that provide an overview and systematically discuss the physical morphology, suitability and extraction aspects of lichens and their secondary metabolites. Part II includes eight chapters that give in-depth insights on recent and valuable applications of lichen and their obtained products in several applied sectors, including ethnopharmacology, therapeutics, paper and dye, nutraceuticals, cosmetics, herbal industries, etc.
Download or read book Recent Advances in Lichenology written by Dalip Kumar Upreti and published by Springer. This book was released on 2014-12-18 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses in detail molecular, mycobiont culture, biomonitoring and bioprospection of lichens, providing insights into advances in different fields of lichenology by applying modern techniques and approaches and examining how their application has enhanced or changed classical approaches. It offers a valuable resource, especially for beginners, students and researchers from different academic backgrounds interested in the study of lichens. In recent years, the introduction of modern analytical techniques and approaches has significantly improved our understanding of the environment, including lichens. Lichens are unique organisms which possess untapped potential as effective and reliable bioindicators, sources of therapeutic phytochemicals, and as excellent extremophiles. The unique and peculiar characteristics of lichens underline the need for a multidimensional approach to explore their potential in various fields of environment science, botany and chemistry. Modern techniques, especially molecular techniques, have greatly enriched the field of lichen taxonomy and its position in the plant kingdom, revealing little-known species and exploring their evolutionary history, while multivariate analysis and GIS approaches have established lichens as an ideal and reliable tool for monitoring air pollution. Advanced culture techniques have expanded the pharmacological applications of lichens, which was formerly restricted due to their small biomass. The advent of sophisticated analytical instrumentation has now facilitated the isolation and characterization of lichens’ bioactive constituents, even in lower concentrations, as well as the estimation of their stress responses at different levels of pollution. As lichen diversity is adversely affected by increasing air pollution, there is a pressing need to develop effective management practices to conserve, restore and document lichen diversity.
Download or read book Lichen Biology written by Thomas H. Nash (III.) and published by Cambridge University Press. This book was released on 1996-01-26 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: A broad-ranging review of organisms which have long-fascinated biologists, ecologists and chemists.
Download or read book Studies in Natural Products Chemistry written by Elfie Stocker-Wörgötter and published by Elsevier Inc. Chapters. This book was released on 2013-03-15 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lichens are fascinating symbiotic organisms, biosynthesizing a broad spectrum of interesting secondary metabolites and polysaccharides. A considerable number of them have been found to exert biological activities, such as antibiotic, antimycobacterial, antiviral, anti-inflammatory, analgesic, antipyretic, antiproliferative, and cytotoxic effects. Only a very low percentage of “lichen substances” have been actually screened for their biological activities and their potential therapeutic applications in medicine. This is due to difficulties to obtain large quantities of lichens from nature, isolated lichen fungi and algae from cultures for extractions. Ten years ago, we have started to bypass these problems by introducing first traditional and then by exploring novel microbiological techniques and advanced molecular tools for our culture experiments. “Case studies” with selected cultured mycobionts and photobionts, accumulating considerable quantities of a focused compound, have been performed as tests for large-scale culturing, to be able to utilize facilities like phytotrons and bioreactors (small-scale bioreactors) for future approaches. Further studies have focused on the chemical identification of the metabolites from cultures and the genetic characterization of lichen PKS genes (Polyketide synthase genes). Another interesting group of lichen metabolites is cell wall polysaccharides. All lichen species investigated so far produce these polymers in considerable amounts and many of them have been shown to exhibit antitumor, immunostimulating, antiviral as well as other types of biological activity. Lichens polysaccharides are mainly of the following structural types: α-glucans (isolichenan, nigeran, pseudonigeran, and pullulan), β-glucans (lichenan, pustulan, laminaran, and lentinan-type glucan), galactomannans, and complex heteroglycans (galactoglucomannan, galactomannoglucan, rhamnopyranosylgalactofuranan, and glucomannan). Investigations on lichen polysaccharides were carried out using material extracted from the entire thallus with no mention of the origin of component polymers (fungal partner or photobiont). In order to understand the contribution of the symbiotic partners to the polysaccharide present in the lichen thallus, the carbohydrates produced by some aposymbiotically cultured mycobionts and photobionts (Trebouxia, Asterochloris, and Coccomyxa) were analyzed. The studies demonstrated that most of the polysaccharides previously found in the symbiotic thalli were also produced by the aposymbiotically cultivated fungal partner, while there were no similarities between the polysaccharides extracted from the photobiont with those from the respective lichen. Surprisingly, the photobionts synthesized very interesting polysaccharides, such as β-galactofuranan, mannogalactofuranan, rhamnopyranosylgalactofuranan, and an O-methylated mannogalactan. One of them was biologically active, having in vitro activity on murine peritoneal macrophages.
Download or read book Chemical Studies on Lichens Inaugural Dissertation written by Uppsala universitet. Matematisk-naturvetenskapliga fakulteten and published by . This book was released on 1969 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies on the Chemistry of Lichens Chemical Constituents of Hypogymnia Enteromorpha Ach Nyl written by Takayuki Shibamoto and published by . This book was released on 1972 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical and Botanical Guide to Lichen Products written by Chicita F. Culberson and published by . This book was released on 2011-09 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical and Botanical Guide to Lichen Products:
