Genus Rheum Polygonaceae

Genus Rheum (Polygonaceae): A Global Perspective provides an integrative overview of a genus of highly valued medicinal herbs. It emphasizes in detail various aspects of research on Rheum, from its origin to conservation. The book evaluates the concepts, definitions, models, and findings involved in understanding its botany, ecology, chemistry, ethnobotany, pharmacology, and molecular biology as well as the employment of in vitro propagation strategies vis-à-vis its threat status as a conservation measure. It includes earlier approaches and the recent state-of-art biotechnological interventions to understand and modulate the pathways involved in the biosynthesis of specialized metabolites of therapeutic significance, making it an essential guide and reference to a broader interdisciplinary readership. It also explores the pharmacological importance of Rheum vis-à-vis traditional utility and highlights different areas that need further research and exploration. Moreover, the book describes how this species has reached the brink of extinction and evaluates the role of different conservation strategies that have been employed from time to time. It also describes how in vitro propagation can serve as a means of its multiplication as well as for the generation of desired bioactive chemical constituents within a short time. Features An integrated approach to elucidate the complex taxonomic history of genus Rheum across the world A repository for the traditional utility of rhubarb across cultures for a spectrum of simple to complex human ailments A rich source of findings and insights on phytochemicals reported to date with their potential use as therapeutic agents Elucidation of different genetic, cytological, and biotechnological interventions employed to understand its adaptability, acclimatization, and stability under tremendous natural and anthropogenic pressure Integration of available information, presented in a single lucid script easily accessible to students, researchers, and interested citizens across the world

Medicinal plants and their derived products remain as an indispensable source of bioactive molecules that serve as either drug candidates or lead compounds for drug design and discovery. There are several advantages for plant-derived therapeutics including wide availability, diverse pharmacological actions and a generally good profile of safety and tolerability. Over the recent years, there have been numerous reports from clinical studies testifying to the efficacy and safety of medicinal plants and phytochemicals in ameliorating several human diseases. A plethora of basic studies has also unravelled molecular mechanisms underlying the health benefits of herbal medicines. Nevertheless, issues such as identification of bioactive ingredients, standardization of the products and drug interactions remain to be further studied. In this book, we aim to put together several chapters on the medicinal properties and pharmacological action of medicinal plants, plant species and phytochemicals. The goal is to present a comprehensive collection on most of the therapeutic aspects of plant-derived natural products and molecular mechanisms thereof.

This book is a comprehensive review of secondary metabolite production from plant tissue culture. The editors have compiled 12 meticulously organized chapters that provide the relevant theoretical and practical frameworks in this subject using empirical research findings. The goal of the book is to explain the rationale behind in vitro production of secondary metabolites from some important medicinal plants. Biotechnological strategies like metabolic engineering and the biosynthesis, transport and modulation of important secondary metabolites are explained along with research studies on specific plants. In addition to the benefits of secondary metabolites, the book also aims to highlight the commercial value of medicinal plants for pharmaceutical and healthcare ventures. Topics covered in this part include: 1. In vitro propagation and tissue culture for several plants including Withania somnifera (L.) Dunal, Aloe vera, Oroxylum indicum (L) Kurz, Ocimum basilicum L, Rhubarb, Tea, and many others (including plants in Northern India). 2. Genetic Improvement of Pelargonium 3. Bioactive Components in Senna alata L. Roxb 4. Plant tissue culture techniques The book caters to a wide readership. It primarily prepares graduate students, researchers, biotechnologists, giving them a grasp of the key methodologies in the secondary metabolite production. It is a secondary reference for support executives, industry professionals, and policymakers at corporate and government levels to understand the importance of plant tissue culture and maximizing its impact in the herbal industry.

Common buckwheat (Fagopyrum esculentum Moench) has been a crop of secondary importance in many countries and yet it has persisted through centuries of civilization and enters into the agriculture of nearly every country where cereals are cultivated. This book describes the taxonomy, botany, history, uses, genetic resources and breeding of buckwheat

Evolutionary innovations—the bony skeleton of vertebrates, avian flight, or the insect pollination system of angiosperms, for example—have in recent years become the focus of much fertile new research in evolutionary biology. Innovations may hold the keys to understanding why whole new groups of organisms evolve or, conversely, why groups of organisms become extinct. This volume brings together contributors from the fields of morphology, genetics, embryology, physiology, and paleontology to present research on evolutionary innovations and to suggest directions for further work. The topics covered include the plurality of evolutionary innovations, patterns and processes at different hierarchical levels, evolutionary genetics of adaptations, heterochrony and other mechanisms of radical evolutionary change in early development, developmental mechanisms at the origin of morphological novelty, the evolution of morphological variation patterns, functional design and its punctuated products, plausibility and testability in assessing the consequences of evolutionary innovations, paradigms and pitfalls of studying physiological evolution, polyphyletic constructional breakthroughs in fossil and extant species, ecology of evolutionary innovations in the fossil record.

Plants of the World is the first book to systematically explore every vascular plant family on earth—more than four hundred and fifty of them—organized in a modern phylogenetic order. Detailed entries for each family include descriptions, distribution, evolutionary relationships, and fascinating information on economic uses of plants and etymology of their names. All entries are also copiously illustrated in full color with more than 2,500 stunning photographs. A collaboration among three celebrated botanists at the Royal Botanic Gardens, Kew, Plants of the World is authoritative, comprehensive, and beautiful. Covering everything from ferns to angiosperms, it will be an essential resource for practicing botanists, horticulturists, and nascent green thumbs alike.

Phytotherapy or herbal medicine is the most important therapy within Chinese medicine and is being used increasingly in the West. A Materia Medica for Chinese Medicine: plants, minerals and animal products describes 400 of the most important plants, minerals and animal substances used as treatments by Chinese medical practitioners. The items included have been selected according to their degree of clinical relevance. Each remedy is clearly described and illustrated on two facing pages, making this an easily accessible reference for both students and practitioners of Chinese herbal medicine. The clearly laid out text presents the following details for each herb or substance included: a detailed description of the characteristic features indictions for safe use medicinal and toxic effects possible combinations with other substances full-colour illustrations, generally two for each substance, showing the detailed characterisitcs of the item described A Materia Medica for Chinese Medicine has been written by two medically trained doctors who have worked as TCM therapists specializing in the use of Chinese herbs for more than 30 years. Based on their many years of teaching and practice, the book has been carefully compiled and designed to provide a concise and accurate practice-based reference for both students and practitioners.

This book provides a comprehensive view of the origin and evolution of the plants of an entire oceanic archipelago.