Activation and Suppression of Plant Immunity


Book Description

Plants constantly face many kinds of abiotic and biotic stresses. One of the major threats is from many plant fungal, oomycete, viral, bacterial and nematode pathogens. Plant diseases caused by these pathogens reduce crop yield by 10-15% worldwide every year. Throughout the human history, plant diseases are responsible for many famines including the infamous Irish Potato Famine. Besides the negative impact on the yield, the quality of the infected crop will be adversely affected and the toxins produced by plant pathogens pose threat to human health. During the co-evolution between plants and pathogens, plants developed elegant defense system against pathogen infection and plant pathogens deploy a variety of strategies to suppress plant innate immunity. A deeper understanding the molecular mechanisms on the activation of plant defense in plants and suppression of plant defense by plant pathogens will be crucial to develop effective ways to minimize the detrimental effects from plant diseases on human beings. This Research Topic aims to increase our understanding on the molecular interactions between plants and pathogens.




Plant Proteases


Book Description

Plant proteases are involved in most aspects of plant physiology and development, playing key roles in the generation of signaling molecules and as regulators of essential cellular processes such as cell division and metabolism. They take part in important pathways like protein turnover by the degradation of misfolded proteins and the ubiquitin-proteasome pathway, and they are responsible for post-translational modifications of proteins by proteolysis at highly specific sites. Proteases are also implicated in a great variety of environmentally controlled processes, including mobilization of storage proteins during seed germination, development of seedlings, senescence, programmed cell death and defense mechanisms against pests and pathogens. However, in spite of their importance, little is known about the functions and mode of actions of specific plant proteases. This Research Topic collects contributions covering diverse aspects of plant proteases research.




The Fungal Spore and Disease Initiation in Plants and Animals


Book Description

This treatise is focused on early aspects of fungal pathogenesis in plant and animal hosts. Our aim in choosing the topics and contributors was to demonstrate common approaches to studies of fungal-plant and fungal-animal interactions, particularly at the biochemical and molecular Ievels. For example, the initial events of adh«sion of fungal spores to the exposed surface tissues of the host are essential for subsequent invasion of the plant or animal and establishment of pathogenesis. A point of consensus among investigators who have directed their attention to such events in plants, insects, and vertebrates isthat spore adhesion to the host cuticle or epithelium is more than a simple binding event. lt is a complex and potentially pivotal process in fungal-plant interactions which "may involve the secretion of ftuids that prepare the infection court for the development of morphological stages of the germling" and subsequent invasion of the host (Nicholson and Epstein, Chapter 1). The attachment of the fungal propagule to the arthropod cuticle is also "mediated by the chemical components present on the outer layer of the spore wall and the epicuticle . . . . Initial attachment may be reinforced further by either the active secretion of adhesive materials or the modification of spore wall materiallocated at the [fungal spore arthropod] cuticle interface (Boucias and Pendland, Chapter 5).




Jasmonate Signaling


Book Description

It is now well established that jasmonates, originally identified as the major component of jasmine scent, play a universal role in the plant kingdom and are involved in the regulation of diverse aspects of plant biology, including growth, development, metabolism, and interaction with the environment. In Jasmonate Signaling: Methods and Protocols, experts in the field aim to unite powerful emerging omics platforms with a number of key reductionist approaches to form a comprehensive collection of tools and protocols. The detailed chapters in this book embrace physiological, environmental, molecular, omics, and bioinformatics approaches that allow dissecting jasmonate actions in the model species Arabidopsis thaliana or in other plants. Written in the highly successful Methods in Molecular Biology series format, chapters feature introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, along with tips on troubleshooting and avoiding known pitfalls. Authoritative and cutting-edge, Jasmonate Signaling: Methods and Protocols will empower interested researchers to dissect all steps of jasmonate signaling and the processes they modulate.




Plant Pathogens and Plant Diseases


Book Description

Text for undergraduate and postgraduate students and researchers in plant pathology and related disciplines. Also useful as a reference for agricultural consultants and advisers, farmers and those involved in agrochemical industries. Designed to give a basic background in plant pathology. Provides information about topics such as epidemiology, disease management, and the biology of pathogenic organisms. Includes suggestions for further reading, a subject index and a pathogen index. Brown is associate professor of plant pathology at the University of New England. Ogle is a lecturer in agriculture at the University of Queensland.




Plant Pattern Recognition Receptors


Book Description

"This volume covers protocols on techniques ranging from MAMP isolations from diverse microorganisms, PRR identifications from different plant species, MAMP-PRR binding, and a series of signaling responses and events revealed by various biochemical, cellular, genetic and bioinformatic tools. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Plant Pattern Recognition Receptors: Methods and Protocolsaims to ensure successful results in the further study of this vital field." -- OCLC.




Recent Advances of Epigenetics in Crop Biotechnology


Book Description

Epigenetics is a new field that explains gene expression at the chromatin structure and organization level. Three principal epigenetic mechanisms are known and hundreds of combinations among them can develop different phenotypic characteristics. DNA methylation, histone modifications and small RNAs have been identified, and their functions are being studied in order to understand the mechanisms of interaction and regulation among the different biological processes in plants. Although, fundamental epigenetic mechanisms in crop plants are beginning to be elucidated, the comprehension of the different epigenetic mechanisms, by which plant gene regulation and phenotype are modified, is a major topic to develop in the near future in order to increase crop productivity. Thus, the importance of epigenetics in improving crop productivity is undoubtedly growing. Current research on epigenetics suggest that DNA methylation, histone modifications and small RNAs are involved in almost every aspect of plant life including agronomically important traits such as flowering time, fruit development, responses to environmental factors, defense response and plant growth. The aim of this Research Topic is to explore the recent advances concerning the role of epigenetics in crop biotechnology, as well as to enhance and promote interactions among high quality researchers from different disciplines such as genetics, cell biology, pathology, microbiology, and evolutionary biology in order to join forces and decipher the epigenetic mechanisms in crop productivity.




The Plant Cell Cycle


Book Description

In recent years, the study of the plant cell cycle has become of major interest, not only to scientists working on cell division sensu strictu , but also to scientists dealing with plant hormones, development and environmental effects on growth. The book The Plant Cell Cycle is a very timely contribution to this exploding field. Outstanding contributors reviewed, not only knowledge on the most important classes of cell cycle regulators, but also summarized the various processes in which cell cycle control plays a pivotal role. The central role of the cell cycle makes this book an absolute must for plant molecular biologists.




Temperature and Plant Development


Book Description

Plants are incredibly sensitive to changes in temperature. Changes of a single degree or two in ambient temperature can impact plant architecture, developmental processes, immune response, and plant reproduction. Temperature and Plant Development thoroughly explores plant molecular responses to changes in temperature with aim to understanding how plants perceive, integrate, and respond to temperature signals. Temperature and Plant Development explores the diverse molecular responses that plants exhibit as they face changing temperatures. Temperature-related changes and adaptations to essential developmental processes, such as germination, flowering, and reproduction, are explored in detail. Chapters also explore the impact of temperature on plant immune responses and the impact of rising temperatures on global food security. A timely and important book, Temperature and Plant Development will be a valuable resource for plant biologists, crop scientists, and advanced students. • Up-to-date and comprehensive coverage of the role of temperature on plant development. • Looks at changes and adaptations to plant developmental processes made in response to changing temperatures. • Explores the role of temperature on plant immune response and pathogen defense • Provides a timely look at the impact of changing temperatures on global food security




Host-Pathogen Interactions


Book Description

In recent decades, infectious diseases, once believed to be fairly contained, have become a vital, resurgent field of research. In Host-Pathogen Interactions: Methods and Protocols, top experts examine the relationship between the host and the pathogen, crucial in the outcome of an infection and the establishment of disease or asymptomatic, commensal colonization by organisms. The step-by-step laboratory methods and protocols of this volume study host-pathogen interaction, with a focus on fungal, bacterial and parasitic pathogens, at a molecular level in order to reveal the mechanisms of infection and to identify the vulnerabilities of the pathogen of interest. Written in the highly successful Methods in Molecular BiologyTM series format, the chapters feature brief subject introductions, lists of the necessary materials and reagents, and tips on troubleshooting and avoiding known pitfalls. Comprehensive and cutting-edge, Host-Pathogen Interactions: Methods and Protocols serves as an easy entry point for all those investigating the factors responsible for the pathogenicity of microorganisms.