Plants depend on physiological mechanisms to combat adverse environmental conditions, such as pathogen attack, wounding, drought, cold, freezing, salt, UV, intense light, heavy metals and SO2. Many of these cause excess production of active oxygen species in plant cells. Plants have evolved complex defense systems against such oxidative stress. The study of these mechanisms has become a fast-moving, important field to many biologists. Written and edited by world-leading scientists, Oxidative Stress in Plants explores the current knowledge of the mechanisms by which various biotic and abiotic environmental stress conditions produce oxygen radicals. The text considers the biochemistry and molecular biology of both non-enzymatic (vitamin C, glutathione) and enzymatic systems which eliminate active oxygen species. In addition, the book discusses evidence that active oxygen species and antioxidants act as signals which trigger defense reactions.

The aim of this monograph is to highlight various mechanisms followed by plants to overcome the high light stress and photoinhibition, and also the plant responses to low light levels. Emphasis has been on the regulation of light harvesting process, the avoidance phenomena at leaf and chloroplast levels and the strategy followed by certa in solar tracking plants in maximizing the light interception without photoinhibitory damage, leading to improvement of diurnal photosynthetic rate. Plant adjustment to light variations over a long term, through the acclimation process brought about by changes in gene function and specific reconstruction of chloroplast has also been discussed. Although the emphasis has been on higher plant systems, green algae and cyanobacterial examples are used wherever appropriate. This book will be a useful reference to advanced postgraduate students, research scientists and teachers interested in the area of photosynthesis research.

Floral morphology is key for understanding floral evolution and plant identification. Floral diagrams are two-dimensional representations of flowers that replace extensive descriptions or elaborate drawings to convey information in a clear and unbiased way. Following the same outline as the first edition, this comprehensive guide includes updated and relevant literature, represents the latest phylogeny, and features 28 new diagrams. Diagrams are presented in the context of the most recent classifications, covering a variety of families and illustrating the floral diversity of major groups of plants. A strong didactic tool for observing and understanding floral structures, these diagrams are the obvious counterpart to any genetic study in flowering plants and to the discussion of major adaptations and evolutionary trends of flowers. This book is invaluable for researchers and students working on plant structure, development and systematics, as well as being an important resource for plant ecologists, evolutionary botanists and horticulturists.

Eucalyptus, a genus of over 800 species, is a multiproduct crop par excellence. Not only is it grown for timber, pulp and fuelwood but, as the Aborigines discovered thousands of years ago, it has numerous medicinal and aromatic properties. Since the first commercial distillation of eucalyptus oil 150 years ago, a vast array of eucalyptus-based products has entered the marketplace, mainly for pharmaceutical, fragrance and flavour use.
This book provides an invaluable reference for all those with an interest in Eucalyptus - in academia and industry alike, for researchers as well as producers, processors, importers and end users - but there are also issues discussed and lessons learnt which extend to medicinal and aromatic plants generally.

eBook available with sample pages: 0203219430

The genus Vetiveria is one of the most versatile genera in plant species. The species Vetiveria Zizanoides produces oderous roots from which a precious essential oil is distilled and used in a variety of applications from perfumery to ethnopharmacology. The same roots give the plant particular characteristics that make it a valuable natural barrier against erosion. Vetiveria: The Genus Vetiveria describes the anatomy, physiology, biochemistry, essential oil biogenesis and chemical composition, ethnopharmacology and distillation, as well as the production of plants for oil exploration and for the use of Vetiver as an ecological tool against erosion, flood, soil pollution and many other applications.

eBook available with sample pages: 0203218736

Plants depend for their survival on physiological mechanisms with which to combat adverse environmental conditions, such as pathogen attack, wounding, drought, cold, freezig, salt, UV, intense light, hevy metals, and SO2. Many of these cause excess production of active oxygen species in plant cells. Plants in turn have evolved complex defence systems against such oxidative stress. The study of these mechanisms has become a fast-moving, topical firld of importance to many biologists studying the effect of the environment on living organisms.
Written and edited by world-leading scientists, Oxidative Stress in Plants reviews the current knowledge of the mechanisms by which various biotic and abiotic environmental stress conditions produce oxygen eadicals. The biochemistry and molecular biology of both non-enzymatic (Vitamin C; Glutathione) and enzymatic systems which eliminate active oxygen species are considered in detail. In addition, the book discusses evidence that active oxygen species and antioxidants act as signals which trigger defence reactions.

eBook available with sample pages: 0203303148

Current trends in population growth hint that global food production is unlikely to gratify future demands under predicted climate change scenarios unless the rates of crop improvement are accelerated. Crop production faces numerous challenges, due to changing environmental conditions and evolving needs for new plant-derived materials. These challenges come at a time when the plant sciences are witnessing remarkable progress in understanding fundamental processes of plant growth and development. Drought, heat, cold and salinity are among the major abiotic stresses that often cause a series of morphological, physiological, biochemical and molecular alterations which adversely affect plant growth, development andproductivity, consequently posing a serious challenge for sustainable food production in large parts of the world, particularly in emerging countries. This emphasizes the urgency of finding better ways to translate new advances in plant science into concrete successes in agricultural production. To overcome the pessimistic influence of abiotic stresses and to maintain the food security in the face of these challenges, new, improved and tolerant crop varieties, contemporary breeding techniques, and cavernous understanding of the mechanisms that counteract detrimental climate changes are indubitably needed to sustain the requisite food supply. In this context, "Improvement of Crops in the Era of Climatic Changes, Volume 1 "provides a state-of-the-art guide to recent developments that aid in the understanding of plant responses to abiotic stresses and lead to new horizons vis-a-vis prime strategies for translating current researchinto applied solutions to create strong yields and overall crop improvement under such unfavourable environments.

Written by a diversegroup of internationally famed scholars, "Improvement of Crops in the Era of Climatic Changes, Volume 1" is a brief yet all-inclusive resource that is immensely advantageous for researchers, students, environmentalists, soil scientists, professionals, and many others in the quest of advancement in this flourishing field of research."

The Genetics and Genomics of the Brassicaceae provides a review of this important family (commonly termed the mustard family, or Cruciferae). The family contains several cultivated species, including radish, rocket, watercress, wasabi and horseradish, in addition to the vegetable and oil crops of the Brassica genus. There are numerous further species with great potential for exploitation in 21st century agriculture, particularly as sources of bioactive chemicals. These opportunities are reviewed, in the context of the Brassicaceae in agriculture. More detailed descriptions are provided of the genetics of the cultivated Brassica crops, including both the species producing most of the brassica vegetable crops (B. rapa and B. oleracea) and the principal species producing oilseed crops (B. napus and B. juncea). The Brassicaceae also include important "model" plant species. Most prominent is Arabidopsis thaliana, the first plant species to have its genome sequenced. Natural genetic variation is reviewed for A. thaliana, as are the genetics of the closely related A. lyrata and of the genus Capsella. Self incompatibility is widespread in the Brassicaceae, and this subject is reviewed. Interest arising from both the commercial value of crop species of the Brassicaceae and the importance of Arabidopsis thaliana as a model species, has led to the development of numerous resources to support research. These are reviewed, including germplasm and genomic library resources, and resources for reverse genetics, metabolomics, bioinformatics and transformation. Molecular studies of the genomes of species of the Brassicaceae revealed extensive genome duplication, indicative of multiple polyploidy events during evolution. In some species, such as Brassica napus, there is evidence of multiple rounds of polyploidy during its relatively recent evolution, thus the Brassicaceae represent an excellent model system for the study of the impacts of polyploidy and the subsequent process of diploidisation, whereby the genome stabilises. Sequence-level characterization of the genomes of Arabidopsis thaliana and Brassica rapa are presented, along with summaries of comparative studies conducted at both linkage map and sequence level, and analysis of the structural and functional evolution of resynthesised polyploids, along with a description of the phylogeny and karyotype evolution of the Brassicaceae. Finally, some perspectives of the editors are presented. These focus upon the Brassicaceae species as models for studying genome evolution following polyploidy, the impact of advances in genome sequencing technology, prospects for future transcriptome analysis and upcoming model systems.

Describes the psychoactive constituents of cannabis and the effects on potency of growth conditions, genetics, harvesting techniques, and processing. Includes variations in THC and CBD content, species differentiation, seeds, grafting, cloning, bonsai marijuana, growing techniques, extraction of THC, preparation of hashish and hash oil, smoking vs eating, testing for THC and CBD, as well as legal concerns. Illustrated.

In recent years, the importance of carotenoids as light harvesting and photoprotective compounds of the photsynthetic apparatus has become apparent. In particular, advances in caratenoid photochemistry have led to significant developments in our understanding of the mechanisms of photsynthesis. This volume is a comprehensive study of the biology, biochemistry and chemistry of carotenoids in higher plants, algae and phototropic bacteria. Emphasis is placed on the photochemistry of carotenoids and the techniques used to study them. Other chapters focus on the nature and distribution of carotenoids in photosynthetic organisms, their biosynthesis and molecular biology, herbicidal inhibition of carotenogenesis and a review of the xanthophyll cycle.

Emphasizing the unpredictable nature of plant behaviour under stress and in relation to complex interactions of biological pathways, this work covers the versatility of plants in adapting to environmental change. It analyzes environmentally triggered adaptions in developmental programmes of plants that lead to permanent, heritable DNA modifications.

The book is a fundamental reference source on reaction wood for wood scientists and technologists, plant biologists, silviculturists, forest ecologists, and anyone involved in the growing of trees and the processing of wood. It brings together our current understanding of all aspects of reaction wood, and is the first book to discuss both compression wood and tension wood.

Trees produce reaction wood to maintain the vertical orientation of their stems and the optimum angle of each branch. They achieve this by laying down fibre cell walls in which differences in physical and chemical structure from those of normal fibres are expressed as differential stresses across the stem or branch. This process, while of obvious value for the survival of the tree, causes serious problems for the utilisation of timber. Timber derived from trees containing significant amounts of reaction wood is subject to dimensional instability on drying, causing twisting, bending and splitting. It is also difficult to work as timber, and for the pulp and paper industry the cost of removing the increased amount of lignin in compression wood is substantial. This has both practical and economic consequences for industry.

Understanding the factors controlling reaction wood formation and its effect on wood structure is therefore fundamental to our understanding of the adaptation of trees to their environment and to the sustainable use of wood.

The topics covered include:

-Morphology, anatomy and ultrastructure of reaction wood

-Cell-wall polymers in reaction wood and their biosynthesis

-Changes in tree proteomes during reaction wood formation

-The biomechanical action and biological functions of reaction wood

-Physical and mechanical properties of reaction wood from the scale of cell walls to planks

-The detection and characterisation of compression wood

-Effects of reaction wood on the performance of wood and wood-based products

-Commercial implications of reaction wood and the influence of forest management on its formation

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Covers the basic knowledge of the regulation of biosynthesis of various amino acids in plants and the application of this knowledge to the discovery of novel inhibitors of amino acid biosynthesis and for enhancing the nutritional value of plant products. Provides an exhaustive list of pathway inhibitors.

Biological Rhythms and Photoperiodism in Plants brings together disparate subject areas into one accessible text of interest to all plant biologists. In this comprehensive volume, leading international researchers review our current understanding of circadian rhythms from a broad perspective. The book begins with a description of well known rhythmic processes such as gene expression, stomatal guard cell opening, and the movement of petals and leaves. Photoperiodic responses such as dormancy, bulbing, tuberization and flowering are then discussed in terms of their rhythmic behaviour. The latest data from current studies with mutant and transgenic plants is also included.

Discusses and explains the major advances that the new technology of applying molecular genetic techniques of modifying carbon and nitrogen in plants has provided, giving insights into its applications for the benefits of agriculture, the environment and man. The text is divided into three sections, the first focusing on primary nitrogen and carbon assimilation and carbon partitioning; the second looking at compartmentation, transport and whole plant interactions; and the third to related metabolism to provide a comprehensive and up-to-date account of this subject.

Spirulena Platensis, a blue-green algae, has been recognized and used worldwide as a traditional source of protein in the food industry. The uses and mass cultivation of this algae have risen substantially due to an increased understanding of its biological systems. This text contains detailed descriptions of both the biology and the biotechnological uses of Spirulena Platensis. Part One focuses on the physiology, morphology, photosyntheses and genetics of laboratory cultures. Part Two discusses the practical uses in biotechnology industries, such as: the cultivation on flat-plate reactors; mass cultures outdoors; uses in wastewater treatment and the use of biomass. It offers critiques of the problems encountered and discussions of the future commercial prospects for large-scale production.

This is the first truly modern book solely devoted to seed reproduction of forest trees-from flowering to establishment, with emphasis on the interaction of environment with physiological processes.
Focus is on seed function in natural settings and the application of information to natural regeneration of forests. This easy-to-read text addresses important principles and provides in-depth coverage of existing literature.
Presentation of the information is organized to allow for a natural development of the main theme with full explanations of such important components as seed production, dispersal and germination, as well as the integral parts played by water, temperature, light, chemicals, animals, pathogens and aging.
A highly useful book for investigators, practitioners or students.

This book presents a comprehensive and coherent picture of how molecules diffuse across a liquid that is, on average, only two molecules thick. It begins by characterizing bilayers structurally, using X-ray diffraction, and then mechanically by measuring elastic moduli and mechanisms of failure. Emphasis is placed on the stability and mechanical properties of plant membranes that are subject to very large osmotic and thermal stresses. Using this information, the transport of molecules of increasing complexity across bilayers is analyzed.

This book assembles recent research on memory and learning in plants. Organisms that share a capability to store information about experiences in the past have an actively generated background resource on which they can compare and evaluate coming experiences in order to react faster or even better. This is an essential tool for all adaptation purposes. Such memory/learning skills can be found from bacteria up to fungi, animals and plants, although until recently it had been mentioned only as capabilities of higher animals. With the rise of epigenetics the context dependent marking of experiences on the genetic level is an essential perspective to understand memory and learning in organisms. Plants are highly sensitive organisms that actively compete for environmental resources. They assess their surroundings, estimate how much energy they need for particular goals, and then realize the optimum variant. They take measures to control certain environmental resources. They perceive themselves and can distinguish between 'self' and 'non-self'. They process and evaluate information and then modify their behavior accordingly. The book will guide scientists in further investigations on these skills of plant behavior and on how plants mediate signaling processes between themselves and the environment in memory and learning processes.

This text is intended for plant physiologists, molecular biologists, biochemists, biotechnologists, geneticists, horticulturalists, agromnomists and botanists, and upper-level undergraduate and graduate students in these disciplines. It integrates advances in the diverse and rapidly-expanding field of seed science, from ecological and demographic aspects of seed production, dispersal and germination, to the molecular biology of seed development. The book offers a broad, multidisciplinary approach that covers both theoretical and applied knowledge.

Provides the latest information on nearly all of the phytoalexins of crop plants studied worldwide over the past 50 years-describing experimental approaches to the research of specific plants and offering detailed explanations on methods of isolation and characterization. Supplies in-depth coverage of cotton, soybean, groundnut, citrus, mustard, grapevine, potato, pepper, sweet potato, yam, sesame, tea, tobacco, pea, pigeon pea, and many more.

These exciting new companion handbooks are the only ones of their kind devoted solely to the effects of environmental variables on the physiology of the world's major fruit and nut crops. Their cosmopolitan scope includes chapters on tropical and temperate zone species written by scientists from several continents. The influence of environmental factors, such as irradiance, temperature, water and salinity on plant physiology and on vegetative and reproductive growth, is comprehensively discussed for each crop. In addition to being a thorough and up-to-date set of textbooks, the organzation of the two volumes makes them an excellent reference tool. Each chapter focuses on a single crop, or a group of genetically or horticulturally related crop, and is appropriately divided into subsections that address individual environmental factors. Some chapters emphasize whole-plant physiology and plant growth and development, while other chapters feature theoretical aspects of plant physiology. Several chapters provide botanical background discussions to enhance understanding of the crop's response to its environment.

Plant Genome Analysis presents outstanding analyses of technologies, as well as explanations of molecular technology as it pertains to agriculture. Advances in genome analysis, including DNA amplification (DAF and RAPD) markers, RFLPs, and microsatellites are reviewed by accomplished scientists, many of whom are the developers of the technique. Articles by patent lawyers experienced in plant biotechnology present the legal viewpoint.
Chapters focus on special elements of genome analysis, such as the:
use of antisense technology
investigation of telomeres
production of plant YACs
importance of cell cycle genes in plants.
Other chapters focus on specialized topics of genome analysis. These include a description of antisense technology in the study of photosynthesis and a comprehensive review of the characterization and isolation of plant telomere, including their use in varietal discrimination. A detailed anaysis of cytoplasmic male sterility in the french bean that focuses on the mitochondrial genome is described. The book provides a chapter on the production of yeast artificial chromosomes (YACs) carrying soybean DNA. Genes of the cell cycle in plants and their importance in developmental processes are presented, as well as detailed chapters on the molecular mapping of trees (apples and pines), and nodulation-related genes in legumes. A comprehensive index and a complete glossary are included.

This book summarizes the latest findings on the functions of microRNAs in the regulation of plant development and responses to the surrounding environment. MicroRNAs are an important class of molecules that can be found in diverse groups of organisms, including plants and animals, and the investigation of their roles is a highly dynamic and "hot" research topic. The respective chapters address four main aspects, namely: microRNA investigation and annotation, the regulatory roles of microRNAs in various developmental processes, in response to abiotic factors, and in the context of biotic stress response regulation. Systematically reviewing the most important findings in this field, the book offers an essential guide for undergraduate and graduate students, teachers, and plant science researchers. Due to the potential applications of microRNAs in crop breeding and plant protection, it also represents a valuable resource for scientists in academia and the private sector alike.