Silicon, considered to be the second most abundant mineral element in soil, plays an important role in the mineral nutrition of plants. A wide variety of monocot and dicot species have benefited from silicon nutrition, whether direct or indirect, when they are exposed to different types of abiotic and or biotic stresses. Besides the many agronomic and horticultural benefits gained by maintaining adequate levels of this element in the soil and also in the plant tissue, the most notable effect of silicon is the reduction in the intensities of a number of plant diseases caused by biotrophic, hemibiotrophic and necrotrophic plant pathogens in many crops of great economic importance. The aim of this book is to summarize our current understanding of the effects of silicon on plant diseases. The chapters address the dynamics of silicon in soils and plants; the history of silicon in the control of plant diseases; the use of silicon to control soil-borne, seed-borne and foliar diseases in monocots and dicots; the mechanisms involved in the host resistance against infection by plant pathogens mediated by silicon as well as the current knowledge at the omics level, and finally, highlights and prospects for using silicon in the future.

This volume continues the series of books on "Plant Pathology in the 21st Century", and contains the papers given at the 10th International Congress of Plant Pathology (ICPP 2013) held in Beijing, August 25-30, 2013 concerning seed health. Many pathogens are transmitted throughout infected seeds and propagation material .The fact that propagation material production is very much concentrated in few establishments, favors the quick spread of new diseases throughout seed commercialization. This phenomenon is very much accelerated in a globalized system. The book covers case studies of contamination, aspects of detection and diagnosis as well as disease management strategies, with special emphasis towards seed treatments with unconventional products. This book will be useful for all plant pathologists as well as students in advanced courses.

The Gossypium (cotton) genus presents novel opportunities to advance our understanding of the natural world and its organic evolution. In this book, advances of the past decade are summarized and synthesized to elucidate the current state of knowledge of the structure, function, and evolution of the Gossypium genome, and progress in the application of this knowledge to cotton improvement. This book provides the first comprehensive reference on cotton genomics.

This book provides a timely review of concepts in plant disease management involving microbial soil suppressiveness and organic amendments. Topics discussed include the impact of suppressive soils on plant pathogens and agricultural productivity, the enhancement of soil suppressiveness through the application of compost and the development of disease suppressive soils through agronomic management. Further chapters describe diseases caused by phytopathogens, such as Pythium, Fusarium and Rhizoctonia, interaction of rhizobia with soil suppressiveness factors, biocontrol of plant parasitic nematodes by fungi and soil suppressive microorganisms.

Microbial Phenazines: Biosynthesis, Agriculture and Health focuses on phenazines, a group of upwards of a hundred nitrogen-containing redox-active heterocyclic compounds of bacterial origin that have long attracted scientific interest because of their colorful pigmentation. Our understanding of these fascinating natural products and their role in human health and the environment has advanced rapidly in recent years, but we are only now beginning to be able to exploit the potential of these compounds in such fields as agriculture and medicine. This volume includes information on the biochemistry and genetics of phenazine synthesis, the physiological effects of phenazines, and methods for the isolation and identification of phenazines with the aid of spectroscopic and electrophoretic techniques. Also included are chapters focused on the roots of phenazine research in the biological control of plant pathogens and recent knowledge of the diversity of phenazine-producing microorganisms and the environments in which they occur. A final chapter addresses the potential of phenazines in the treatment of cancer.

Both wheat and barley are two of the most important food and industrial crops in the world. Wheat and barley cultivation has experienced changes in practices due to factors such as methods of conservation agriculture, cropping systems, wheat varieties, changes in weather patterns, and international trade, necessitating new and different approaches for the successful management of emerging diseases and new pathotypes of pathogens. This valuable volume explores a multitude of new approaches and techniques for the effective management of emerging wheat diseases. This new volume presents the latest literature on management technology of diseases that affect the production of wheat and are capable of reducing grain yields as well as grain quality. These diseases include rusts, smuts, other foliar diseases such as blight, spots, blotch, powdery mildew, bunts, etc., as well as diseases such as Karnal bunt of wheat, which is of importance to international trade. This book will be highly valuable to researchers, students, teachers, farmers, seed growers, traders, and other stakeholders dealing with wheat and barley. It also advances our knowledge in the field of plant pathology, plant breeding, and plant biotechnology, agronomy, and grain quality and pesticide industries. The book will serve as a reference on disease management technologies for the containment of losses in wheat and barley yields and will assist in maintaining wheat quality, reducing the cost of cultivation, increasing yield, and thus in helping to ensuring food security on a global level.

The use of synthetic pesticides has undoubtedly resulted in the achievement of increased crop production. However, in recent times, there has been a considerable pressure on consumers and farmers to reduce or eliminate the use of synthetic pesticides in horticulture, since fruits and vegetables are consumed afresh. This concern has encouraged looking for better alternatives which are cheaper and eco-friendly than synthetic pesticides. It is well known that plant growth promoting rhizobacteria (PGPR) play an important role in maintaining crop and soil health through versatile mechanisms. There are two main outcomes or effects from beneficial microorganisms: enhanced plant growth and crop protection, both of which represent the two main constraints to agriculture. The information on biomanagement of pests (insect and nematode pests, fungal, bacterial and viral/phytoplasma diseases) of horticultural crops (fruits, vegetables, plantation, spice, tuber, ornamental, medicinal and aromatic crops) using PGPR is very much scattered. There is no book at present which comprehensively and exclusively deals with the above aspects on horticultural crops. The present book deals with biomanagement of pests in horticultural crops in detail using PGPR. The present book deals with biomanagement of pests in horticultural crops in detail using PGPR. The present book is divided into six sections. The first section deals with the importance of PGPR including introduction, potential role of PGPR in agriculture, genera of PGPR, disease management, nematode management, insect pest management, integrated pest management, mechanism of biocontrol, mass production, formulation, delivery and commercialization. Pest management in tropical, sub-tropical and temperate fruit crops is dealt in Section II. The third section deals with pest management in Solanaceous, bulbous, Malvaceous, Cruciferous, Leguminous, Cucurbitaceous, leafy and root and tuber vegetable crops. Pest management in plantation and spice crops is in Section IV. Section V deals with pest management in ornamental, medicinal and aromatic crops. The last section deals with a road map ahead including challenges, future prospective and conclusions. The book is extensively illustrated with excellent quality photographs enhancing the quality of publication. The book is written in lucid style, easy to understand language along with adoptable recommendations involving eco-friendly components of IPM.

Through ‘Green Revolution’ in late 1960s, India achieved self-sufficiency in food production, but still the country has not achieved self-sufficiency in production of horticultural crops. Most of the growth in food production during the green revolution period is attributed to the use of higher levels of fertilizers and pesticides which are continuing to destroy stable traditional ecosystems. The challenge before the crop protection scientist is to increase yields from the existing land without harming the environment and resource base. This can be achieved by adopting eco-friendly Biointensive Integrated Pest Management (BIPM) strategy. BIPM incorporates ecological and economic factors into agricultural system design and decision making, and addresses public concerns about environmental quality and food safety. The benefits of implementing BIPM can include reduced chemical input costs, reduced on-farm and off-farm environmental impacts, and more effective and sustainable pest management. An ecology-based IPM has the potential of decreasing inputs of fuel, machinery, and synthetic chemicals-all of which are energy intensive and increasingly costly in terms of financial and environmental impact. Such reductions will benefit the grower and society. The present book deals with the most recent biointensive integrated approaches for pest management utilizing components such as bioagents [predators, parasitoids and pathogens (bacteria, fungi, viruses)], botanicals (biofumigation, oil cakes, FYM, compost, crop residues, green manuring and other organic amendments), arbuscular mycorrhizal fungi, physical methods (hot water treatment of planting material, soil solarization), cultural methods (crop rotation, summer ploughing, fallowing, intercropping, pruning, mulching, spacing, planting date, trap cropping, etc.), biorational chemicals (pheromones) and resistant cultivars. This book can serve as a useful reference to policy makers, research and extension workers, practicing farmers and students. The material can also be used for teaching post-graduate courses.

Written in easy to follow language, the book presents cutting-edge agriculturally relevant plant biotechnologies and applications in a manner that is accessible to all. This book introduces the scope and method of plant biotechnologies and molecular breeding within the context of environmental analysis and assessment, a diminishing supply of productive arable land, scarce water resources and climate change. Authors who have studied how agro ecosystems have changed during the first decade and a half of commercial deployment review effects and stress needs that must be considered to make these tools sustainable.

This brief describes various methods of chitosan nano-materials synthesis, with detailed discussion of various factors effecting its synthesis process, stability and physicochemical properties. Chitosan is naturally occurring biopolymer derived from chitin. Due to the unique biological properties of chitosan nano-materials such as antimicrobial, plant growth inducer, plant defense modulator, chitosan has gained attention in fields of plant sciences. Book further extended the details of different types of chitosan nano-materials specially for plant applications along with its future prospects in plant protection and growth. Bioactivities of chitosan nano-materials and its mechanism have also been covered. This book aims to widening the understanding of the synthesis, characterization and use of chitosan based nano-materials in plant system.

Around the globe, besides fungal and bacterial diseases, both virus and viroid diseases have acquired greater importance in the realm of plant pathology and call for effective management measures as they are responsible for heavy yield losses and are a matter of vital importance and concern to farmers, horticulturists, gardeners and foresters. Understanding disease epidemiology is of vital importance for formulating viable disease management practices in a given agro-ecosystem. The development and progress of plant disease epidemics are variable from region to region. Epidemiology is not a static process, but rather a dynamic course that varies with a change in the ecology, host, vector and virus systems.

Fusarium head blight (FHB) on small-grain cereals is one of the most devastating diseases. Several species can cause head blight, though Fusarium graminearum is the predominant pathogen in most regions. F. graminearum is one of the most intensively studied fungal plant pathogens. This book presents the current state of knowledge regarding mycological aspects that make wheat-Fusarium interaction, such as hyphal growth, morphogenesis in germinating spores, visualization of enzymatic hydrolysis, production of mycotoxins, inhibition of the hyphal growth by antagonist microorganisms, use of natural substances or by modification of the host resistance, as well as genetic analysis and expression of genes that regulate the infection. Fungal ecology and epidemiology will also be discussed. Just as the analysis of environmental requirements for the establishment of the disease, the use of forecasts of disease risk with meteorological base and integrated management and control. This book includes the study of disease in Latin America, therefore will be of interest to researchers who are working on the issue, as for those who are interested in knowing about the disease.

A great deal of effort is being invested in understanding the molecular mechanisms through which plants interact with pathogenic microbes. In Plant Immunity: Methods and Protocols, expert researchers in the field describe emerging technologies that can be applied to the most significant outstanding questions faced by scientists studying immunity in plants. The technologies in this detailed volume include methods for examining protein localization, protein complex purification, protein-protein interactions, transient and inducible gene expression, chromatin immunoprecipitation, microaspiration, laser microdissection, purification of fungal haustoria, and genetic manipulation of bacterial and oomycete pathogens. These techniques are applicable to a wide range of topics, including molecular functionality of NB-LRR proteins and other immune signaling components, and functional characterization of effector proteins and other pathogen components that sabotage host immunity. Written in the highly successful Methods in Molecular Biology (TM) series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and key tips on troubleshooting and avoiding known pitfalls.

Studies related to pathogen-mediated virus resistance in plants were instrumental in providing some of the historical observations which ultimately led to the vital discovery of double-stranded RNA (dsRNA)-induced gene silencing or RNA interference (RNAi), which has since revolutionized research on plant-virus interactions. In Antiviral Resistance in Plants: Methods and Protocols, expert researchers in the field detail many of the methods which are now commonly used to study the phenomenon of RNA silencing in relation to viral infections of plants. These include methods and techniques for the isolation and quantitative/qualitative analyses of plant small 21-24 nucleotide RNAs such as small interfering RNAs (siRNAs) and microRNAs (miRNAs) as well as the analysis and manipulation of virus-induced gene silencing (VIGS) in both monocotyledonous and dicotyledenous plants and the use of hairpin RNA (hpRNA) transgenes. Written in the highly successful Methods in Molecular Biology (TM) series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and key tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Antiviral Resistance in Plants: Methods and Protocols seeks to aid scientists in the further study of this crucially important botanical trait.

This volume addresses the similarities and also the differences in the genomes of soil saprophytes, symbionts, and plant pathogens by using examples of fungal species to illustrate particular principles. It analyzes how the specific interactions with the hosts and the influence of the environment may have shaped genome evolution. The relevance of fungal genetic research and biotechnological applications is shown for areas such as plant pathogenesis, biomass degradation, litter decomposition, nitrogen assimilation, antibiotic production, mycoparasitism, energy, ecology, and also for soil fungi turning to human pathogens. In addition to the model organisms Neurospora and Aspergillus, the following species are covered providing a view of pathogens and mutualists: Trichoderma, Fusarium oxysporum, Cochliobolus heterostrophus, Penicillium chrysogenum, Rhizopus oryzae, Podospora anserina, and species belonging to Agaricomycetes, Archaeorhizomycetes and Magnaporthaceae. Ecology and potential applications have guided the choice of fungal genes to be studied and it will be fascinating to follow the trends of future sequencing projects.

Plants are the basis for human nutrition and of increasing interest for the chemical industry as a source of chemical feed stocks. Fuels derived from plant biomass will increasingly replace fossil fuels in the future. In order to increase crop productivity, design new plant products, and create new energy crops, there is need for methods of qualitative and quantitative analysis of metabolism which are able to guide the rational re-design of metabolic networks. In this book, recent advances in qualitative and quantitative analysis of metabolism are summarized to give an overview of the current state of knowledge. Principles of the analysis of network structure, flux analysis, and kinetic modeling are described. Analytical methods necessary to produce the data needed for metabolic flux analysis and for kinetic modeling are described. The analysis of larger metabolic networks is only possible by using computer assistance. Therefore each chapter of the book shall also describe software available for this purpose.

This book provides a comprehensive review of all aspects of the molecular and cell biology of abscisic acid (ABA) metabolism, transport and signal transduction, covering our current understanding of ABA as well as research trends. The agricultural significance of ABA metabolism, transport and signal transduction is also discussed. The phytohormone ABA regulates many aspects of plant development and plays a central role in plant adaptation to environmental stresses. Over the past few decades, considerable advances have been made in the study of ABA metabolism, transport and signal transduction, greatly deepening our understanding of the underlying mechanisms of ABA function at the molecular, cell and whole-plant level and helping us improve crops' environmental tolerance. This book provides a valuable resource for researchers and advanced students interested in plant biology and agriculture.

This book is a compilation of the most challenging and significant chapters on the diagnosis and management of important bacterial, fungal, viral, viroid, phytoplasma, non parasitic diseases and various physiological disorders, in various crops. The chapters have been contributed by eminent plant pathologists, having wide experience of teaching and research on various crops with different types of diseases, which cause great economic losses. The book would be very useful for students, teachers and researchers of plant pathology. This book highlights recent advances made in the development of new types of resistance in host plants and alternative strategies for managing plant diseases to improve food quality and reduce the negative public health impact associated with plant diseases. Having entered into 21st century advancements in the Diagnosis of Plant Pathogens and Plant Disease Management need to be closely examined and adequately applied, so that newer challenges facing plant pathology could be adequately addressed in attaining food security for the growing population. Substantial advancements have been made in terms of expanding knowledge base of the biology of plant-microbial interactions, disease management strategies and application and practice of Plant Pathology. Application of molecular biology in Plant Pathology has greatly improved our ability to detect plant pathogens and in increasing our understanding, their ecology and epidemiology. Similarly, new technologies and resources have been evolved for the development of sustainable crop protection systems by different control strategies against various pests and pathogens that are important components of the integrated pest management programme. Natural products and chemical compounds discovered as a result of basic research and molecular mechanisms of pathogenesis have led to the development of "biorational" pesticides. Biological control has been found to be the most significant approach to plant health management during the twentieth century and promises using modern biotechnology, to be even more significant in the twenty-first century.

This volume presents the issues and challenges of crop pathogens and plant protection. Composed of the latest knowledge in plant pathology, the book covers topics such as fungal diseases of the groundnut, plant growth promoting rhizobacteria, plant pathogenic fungi in the genomics era, the increased virulence of wheat rusts and oat fungal diseases. Written by experienced and internationally recognized scientists in the field, Future Challenges in Crop Protection Against Fungal Pathogens is a concise yet comprehensive resource valuable for both novice as well as experienced plant scientists and researchers.

White rust caused by the fungus Albugo is the most devastating disease known to occur in more than 50 countries and infects about 400 plant species belonging to 31 families worldwide including important vegetable crucifers, oil yielding Brassicas, ornamental plants and numerous weeds. This book on "White Rust" deals with the aspects on "the disease" and "the pathogen" is vividly illustrated for stimulating, effective and easy reading and understanding. We are sure that this comprehensive treatise on "white rust" will be of immense use to the researchers, teachers, students and all others who are interested in the diagnosis and management of white rust diseases of crops worldwide.

This collection of papers includes some of the presentation given at the International congress of Plant Pathology held in Beijing in 2013 in the session of Recent Development in Postharvest Pathology. Fruit production for human consumption is an important part of the market economy. Any waste during to spoilage and pest infestation, in the field and the postharvest phase, results in significant economic losses which are more pronounced as the losses occur closer to the time of produce sale. Careful handling of perishable produce is needed for the prevention of postharvest diseases at different stages during harvesting. Handling, transport and storage in order to preserve the high quality produce. The extent of postharvest losses varies markedly depending on the commodities and country estimated to range between 4 and 8% in countries where postharvest refrigeration facilities are well developed to 30% where facilities are minimal. Microbial decay is one of the main factors that determine losses compromising the quality of the fresh produce. For the development of an integrated approach for decay management, cultural, preharvest, harvest and postharvest practices should be regarded as essential components that influence the complex interactions between host, pathogen, and environmental conditions. Orchards practices including preharvest fungicide applications can also directly reduce the development of postharvest fruit decay. Among postharvest practices, postharvest fruit treatments with fungicide are the most effective means to reduce decay. Ideally, these fungicides protect the fruit from infections that occur before treatment, including pathogen causing quiescent infections, as well from infection that are initiated after treatment during postharvest handling, shipment and marketing. The implementation of these alternatives techniques often requires modifying currently used postharvest practices and development of new formulation for their applications. The present chapters deal with the newest report related to postharvest pathology in the world.

Over the course of evolution, fungi have adapted to occupy specific niches, from symbiotically inhabiting the flora of the intestinal tract of mammals to saprophytic growth on leaf litter resting on the forest floor. In Plant Fungal Pathogens: Methods and Protocols, expert researchers in the field detail many of the methods which are now commonly used to study fungal plant pathogens. These include methods and techniques for model systems such as Arabidopsis thaliana as well as crop plants, aspects of fungal biology, genome annotation, next-generation sequencing, and fungal transformation and molecular tools for disease and/or pathogen quantification that are critical for revealing the role for a fungal gene of interest in disease development. Written in the highly successful Methods in Molecular Biology (TM) series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and key tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Plant Fungal Pathogens: Methods and Protocols seeks to aid scientists in the further study in current techniques that cover a wide-range of methods to study molecular aspects of pathogenesis.

This book describes how genomics has revolutionized our scientific understanding of agriculturally important plant-associated bacteria. Each chapter focuses on the genomics of particular bacteria: the first described plant pathogen, Erwinia amylovora; phytoplasmas lacking cell walls; fastidious, phloem-restricted liberibacters; Pseudomonas syringae, which is a genetically tractable model system; Xanthomonas citri, which causes a disease that can devastate citrus crops and Pseudomonas fluorescens, which can protect plants from diseases. Topics considered in this volume include the importance of horizontal gene transfer in originating new bacterial strains and species and advances in transcriptomics that allow us to describe the complex regulatory networks critical to plant-microbe interactions. The availability of the Xanthomonas oryzae genome has led to new technologies in genome editing, which will revolutionize approaches to genetic engineering, even in eukaryotes. The contributions show how genomics has greatly accelerated progress toward understanding the biology of these bacteria and how that understanding can be translated into novel crop protection methods.

This book is part of the Plant Pathology in the 21st Century Series, started in the occasion of the IX International Congress of Plant Pathology, Torino, 2008. In conjuction with the Xth International Congress of Plant Pathology, held in Beijing in August 2013. Although deriving from a Congress, the book will not have the format of traditional Proceedings, but will be organized as a resource book. It will be based on invited lectures presented at the Congress as well as by other chapters selected by the editors among offered papers. This book will cover a topic very important in the field of plant pathology, dealing with detection and diagnostics. This field of research is continuously moving forwards, due to innovation in techniques. The application of new detection and diagnostic technologies are relevant to many applied fields in agriculture. The different chapters will provide a very complete figure of the topic, from general and basic aspects to practical aspects.

Continuing in the tradition of its predecessors, this new edition combines an informal, easy to read style with a thorough introduction to concepts and terminology of plant pathology. After reviewing fundamental concepts, the book discusses groups of plant pathogens and molecular tools for studying them, pathogen interactions, epidemiology and disease control, and special topics in plant pathology. The book details various disease-causing organisms, including viruses, fungi, prokaryotics, nematodes, and various biotic agents. It also examines various plant-pathogen interactions, molecular attack strategies, extracellular enzymes, host defenses, and disruption of plant function. New in the Third Edition Molecular plant-fungal interactions Expanded treatment of molecular tools Advanced biocontrol concepts How to use and care for microscopes