In the context of increasing concern for food and environmental quality, use of Plant Growth-Promoting Rhizobacteria (PGPR) for reducing chemical inputs in agriculture is a potentially important issue. This book provides an update by renowned international experts on the most recent advances in the ecology of these important bacteria, the application of innovative methodologies for their study, their interaction with the host plant, and their potential application in agriculture.

This book includes 25 contributions from vastly experienced, global experts in PGPR research in a comprehensive and influential manner, with the most recent facts and extended case studies. Also, the chapters address the current global issues in biopesticide research.

In the course of evolution, a great variety of root systems have learned to overcome the many physical, biochemical and biological problems brought about by soil. This development has made them a fascinating object of scientific study. This volume gives an overview of how roots have adapted to the soil environment and which roles they play in the soil ecosystem. The text describes the form and function of roots, their temporal and spatial distribution, and their turnover rate in various ecosystems. Subsequently, a physiological background is provided for basic functions, such as carbon acquisition, water and solute movement, and for their responses to three major abiotic stresses, i.e. hard soil structure, drought and flooding. The volume concludes with the interactions of roots with other organisms of the complex soil ecosystem, including symbiosis, competition, and the function of roots as a food source.

Sustainable increase in agricultural production while keeping the environmental quality, agro-ecosystem function and biodiversity is a real challenge in current agricultural practices. Application of PGPR can help in meeting the expected demand for increasing agricultural productivity to feed the world’s booming population. Global concern over the demerits of chemicals in agriculture has diverted the attention of researchers towards sustainable agriculture by utilizing the potential of Plant Growth Promoting Rhizobacteria (PGPR). Use of PGPR as biofertilizers, biopesticides, soil, and plant health managers has gained considerable agricultural and commercial significance. The book Plant Growth Promoting Rhizobacteria (PGPR): Prospects for Sustainable Agriculture has contributions in the form of book chapter from 25 eminent global researchers, that discusses about the PGPRs and their role in growth promotion of various crop plants, suppression of wide range of phytopathogens, their formulation, effect of various factors on growth and performance of PGPR, assessment of diversity of PGPR through microsatellites and role of PGPR in mitigating biotic and abiotic stress.This book will be helpful for students, teachers, researchers, and entrepreneurs involved in PGPR and allied fields. The book will be highly useful to researchers, teachers, students, entrepreneurs, and policymakers.

PGPR have gained world wide importance and acceptance for agricultural benefits. These microorganisms are the potential tools for sustainable agriculture and the trend for the future. Scientific researches involve multidisciplinary approaches to understand adaptation of PGPR to the rhizosphere, mechanisms of root colonization, effects on plant physiology and growth, biofertilization, induced systemic resistance, biocontrol of plant pathogens, production of determinants etc. Biodiversity of PGPR and mechanisms of action for the different groups: diazotrophs, bacilli, pseudomonads, and rhizobia are shown. Effects of physical, chemical and biological factors on root colonization and the proteomics perspective on biocontrol and plant defence mechanism is discussed. Visualization of interactions of pathogens and biocontrol agents on plant roots using autofluorescent protein markers has provided more understanding of biocontrol process. Commercial formulations and field applications of PGPR are detailed.

This book provides information about plant–environment studies and challenges for plant improvement to achieve food security. Plants face a wide range of environmental challenges, which are expected to become more intense as a result of global climate change. Plant–environment interactions play an important role in the functioning of ecosystems. There are habitats throughout the world that present challenges to crop plants, such as through a lack of water and excessive, or toxic, salts in the soil. Soil properties represent a strong selection pressure for plant diversity and influence the structure of plant communities and participate to the generation and maintenance of biodiversity. Plant communities selected by environment grow by modifying soil physical, chemical, and biological properties, with consequent effects on survival and growth of plants. The complexity of plant–environment interactions has recently been studied by developing a trait-based approach in which responses and effects of plants on environment were quantified and modeled. This fundamental research on plant–environment interaction in ecosystems is essential to transpose knowledges of functional ecology to environmental management. Plants have adapted to an incredible range of environment, and extensive researches on ecological and environmental plant physiology have provided mechanistic understanding of the survival, distribution, productivity, and abundance of plant species across the diverse climates of our planet. Ecophysiological techniques have greatly advanced our understanding of photosynthesis, respiration, plant water relations, and plant responses to abiotic and biotic stresses, from instantaneous to evolutionary timescales. Ecophysiological studies also provide the basis for scaling plant physiological processes from the tissue to the canopy, ecosystem, region, and to a large extent, the entire globe. Given the above, the author proposes to bring forth a comprehensive book, “New Frontiers in Plant-Environment Interactions”, highlighting the various emerging techniques and applications that are currently being used in plant–environment interaction research and its future prospects. The author is sure that this book caters the need of all those who are working or have interest in the above topic.

A timely overview of techniques for involving biological organisms in the remediation of polluted ecosystems As a result of worldwide industry, urbanization, and population growth, many harmful organic and inorganic pollutants have been introduced into the environment. With bioremediation, we can use fungi, bacteria, and plants—along with their secondary metabolites—to clean up areas that have been affected by industrial and commercial activities. Biotechnology in Environmental Remediation presents a thorough consideration of the most important biologically-based remediation methods in use today. Environmental biotechnology is a more sustainable alternative to chemical and mechanical remediation methods, which explains the rapidly growing popularity of these techniques. This edited volume summarizes our current understanding of bioremediation approaches and presents research outcomes from a diverse selection of geographies and ecosystems. Chapters cover remediation techniques for pollutants affecting soil, water, air, and sediments, as well as tools for addressing these issues, including tools for assessment and monitoring. Uniquely, Biotechnology in Environmental Remediation emphasizes the latest findings on the use of secondary metabolites in bioremediation. Other topics covered include chemical sustainability, nanotechnology, and biofuels. Readers will gain an understanding of issues including: How biological organisms and their secondary metabolites are currently being used in environmental remediation projects worldwide New applications for phytomolecules, lichens, nanoparticles, rhizobacteria, and other technologies, as well as future directions for bioremediation The steps in the process of biotechnology-driven remediation, including detection, investigation, assessment, cleanup, redevelopment, and monitoring Remediation of petroleum hydrocarbons, algal carbon sequestration, wastewater management, and the role of fatty acid and proteins in remediation The investigations in this book provide important knowledge for researchers in biotechnology, ecology, environmental science, and related disciplines. Additionally, policymakers and NGOs with an interest in remediating environmental contaminants will gain valuable context. Biotechnology in Environmental Remediation is a foundation for future research on biotechnological interventions for a clean planet.

This book presents the state-of-the-art in plant ecophysiology. With a particular focus on adaptation to a changing environment, it discusses ecophysiology and adaptive mechanisms of plants under climate change. Over the centuries, the incidence of various abiotic stresses such as salinity, drought, extreme temperatures, atmospheric pollution, metal toxicity due to climate change have regularly affected plants and, and some estimates suggest that environmental stresses may reduce the crop yield by up to 70%. This in turn adversely affects the food security. As sessile organisms, plants are frequently exposed to various environmental adversities. As such, both plant physiology and plant ecophysiology begin with the study of responses to the environment. Provides essential insights, this book can be used for courses such as Plant Physiology, Environmental Science, Crop Production and Agricultural Botany. Volume 2 provides up-to-date information on the impact of climate change on plants, the general consequences and plant responses to various environmental stresses.

Biofertilizers, Volume One: Advances in Bio-inoculants provides state-of-the-art descriptions of various approaches, techniques and basic fundamentals of BI used in crop fertilization practices. The book presents research within a relevant theoretical framework to improve our understanding of core issues as applied to natural resource management. Authored by renowned scientists actively working on bio-inoculant, biofertilizer and bio-stimulant sciences, the book addresses the scope of inexpensive and energy neutral bio-inoculant technologies and the impact regulation has on biofertilizer utilization. This book is a valuable reference for agricultural/environmental scientists in academic and corporate environments, graduate and post-graduate students, regulators and policymakers. - Informs researchers on how to develop innovative products and technologies that increase crop yields and quality while decreasing agricultural carbon footprints - Focuses on production, protocols and developments in the processing of bio-inoculants, bio-stimulants and bio-fertilizers - Summarizes the biologically active compounds and examines current research areas

This edited book covers the major aspects of plant growth promoting bacteria and mechanisms underlining the phenotype in rhizobacteria. This book guides the researchers about the potential of plant growth promoting bacteria to be used as biofertilizers. The process of biofertilizer development and the process of testing its efficacy for commercial use and the potency is elaborated in this volume using suitable figures. The information in this book regarding the secretion of various secondary metabolites responsible for nutrient management is helpful for designing bioformulations that assist plant growth. This book provides substantial number of evidences that underlines the genomic basis of nutrient management by microbes. Essential information is provided regarding the genomic and proteomic background of the biofertilizers. The chapters in the book are divided into three sections. The first section of the book includes chapter 1-5 outlining the importance of rhizobacteria in elevating the nutrient levels in soil and augmenting the biotic and abiotic stress. Second section of the book includes chapter 6-11 elaborating the details about the biofertilizer, types of biofertilizer available and techniques involved in mass production of biofertilizers. Section third covers chapters from 12-15 providing the explicit information about metabolomics and proteomics basis of plant growth development. This collective work is distinct as it has focus on diverse emerging technologies which are high-throughput, scalable and applicable to different countries regardless of their socio-economic conditions. This book can improve the current state of knowledge and invoke researchers and innovators to take ahead the current inter-disciplinary knowledge into technologies that are readily available and effectively minimize hazards associated with chemical fertilizer.