Search

Plants are continuously exposed to different environmental stresses that negatively impact their physiology and morphology, resulting in production reduction. As a result of constant pressure, plants evolve different mechanisms for sustenance and survival. Hormones play a major role in defences against the stresses and stimulate regulatory mechanisms. One of the ways through which they mitigate stress is via the production of hormones like auxins, ethylene, jasmonic acid, etc. The phytohormones help in signaling and enhance the chances of their survival. Plant hormones play many vital roles from integrating developmental events, physiological and biochemical processes to mediating both abiotic and biotic stresses. This book aims to highlight these issues and provide scope for the development of tolerance in crops against abiotic stresses to maximize yield for the growing population. There is an urgent need for the development of strategies, methods and tools for the broad-spectrum tolerance in plants supporting sustainable crop production under hostile environmental conditions.The salient features are as follows:• It includes both traditional and non-traditional phytohormones and focuses on the latest progress emphasizing the roles of different hormones under abiotic stresses.• It provides a scope of the best plausible and suitable options for overcoming these stresses and puts forward the methods for crop improvement.• It is an amalgamation of the biosynthesis of phytohormones and also provides molecular intricacies and signalling mechanisms in different abiotic stresses.• This book serves as a reference book for scientific investigators from recent graduates, academicians and researchers working on phytohormones and abiotic stresses.

Melatonin (N-acetyl-5-methoxytryptamine) is a widely studied biomolecule, and its function has been investigated in bacteria, mammals, birds, amphibians, reptiles, fish and plants. Melatonin research in plants the last five years has attained an exponential growth phase and the number of publications related to phytomelatonin has significantly increased in present times. All this research is directed towards establishing multifarious roles of melatonin in plants, including the promotion of seed germination and seedling growth, influencing plant development and senescence, alteration of flowering and fruiting time and grain yield, modulating circadian rhythms, improving resistance against biotic stress as well as tolerance to abiotic stress, reducing oxidative stress, and stimulating plant immune response. However, to date, an exhaustive book, solely and exclusively dedicated to melatonin research on various aspects of plant biology, has not been published by any renowned publisher or is available in the market. Keeping all these facts in mind, this book aims to compile the most recent developments in the arena of melatonin-mediated regulation of plant physiology under optimal and sub-optimal conditions. This book will initiate and introduce the readers to the state-of-the-art developments and trends in this field of study and will largely cater to the scientific need of scientists engaged in melatonin research across the globe. The book will be unique of its kind and will draw the attention of scientific and research communities engaged in the field of melatonin research.The key features of this book: Authors will address the topics which would provide advances in the understanding of diverse functions of melatonin in plants, encompassing almost all the aspects that have been investigated so far Integrate the overall mechanistic function of melatonin, genomics and proteomics tools, and genetic engineering to manipulate endogenous melatonin levels, thus giving a holistic view of plant-level studies under normal or challenging situations Largely help the readers to design future research programs in exploiting melatonin as a protective agent to develop climate-resilient and pathogen-resistant plants Benefit the crop protection program and ensure food security Chapters will be supplemented with ample illustrations and figures This book will be beneficial to research scholars and Ph.D. students involved in melatonin research and working on stress physiology, stress proteins, genomics, proteomics and genetic engineering in different universities and research institutes all over the world. The book can also be used as an advanced reference book for the coursework of research and master's level students. It will be of use to people involved in improving plant growth and yield, as well as the performance of plant species in the face of climate change and pathogen infection, using melatonin as the prime protective agent and signaling molecule. Although the book will directly benefit the academic and scientific community, it will also indirectly draw the attention of industries or companies that manufacture or sell chemical products, since the book will highlight in detail the antioxidative potential of melatonin. This will create impetus at the industrial level for the isolation and synthesis of melatonin as a beneficial chemical agent. Applying melatonin as an ameliorating agent against different stresses at the field level will also increase the demand for this chemical among the farmers and will promote large-scale sales and utilization of melatonin for ensuring crop protection and increasing yield.

This book provides a comprehensive update on recent developments of Jasmonates (JAs) and Brassinosteroids (BRs) in plant signalling and biotechnological applications. Over the last few decades, an enormous amount of research data has been generated on these two signalling molecules. This valuable compilation will enhance the basic understanding of JAs and BRs mechanism of actions ensuing tolerance mechanism of crops under climate changes for sustainable agriculture and human welfare. This book covers topics regarding the occurrence of JAs and BRs in plants, biosynthesis, role in plant growth and development, role of these PGRs during various abiotic stress tolerance in plants, crosstalk of Reactive Oxygen Species (ROS) and plant stress mitigation, regulation of JAs and BRs signaling pathways by microRNA, along with physiological and anatomical roles of JAs and BRs as wound healing, regeneration and cell fate decisions. The cross talk of JAs and BRs with neurotransmitters in plant growth and development. Bio-fortification of crop plants with BRs in managing in human health issues chapter enlightened new role of BRs in human wellbeing. This book will be beneficial to scientists, researchers, agriculturists, horticulturists, industries related to the crop and food production KEY FEATURES Reviews the global scientific literature and experimental data of the authors on the occurrence of JAs and BRs in various plants Update information on recent developments of JAs and BRs signalling and biotechnological applications in plants Highlights the physiological, metabolic and molecular mechanism of JAs and BRs under variable climates Addresses the abiotic and biotic tolerance management by JAs and BRs Describes the role of JAs and BRs in sustainable agriculture and human welfare in eco-friendly manner

The book “Salicylic acid: A Plant Hormone” was first published in 1997 and was praised for its excellent balance of traditional and modern topics. This time, we're building on the success of the prior edition to provide an even more effective second edition. The present book is comprised of 16 chapters highlighting the updated mechanisms of its biosynthesis, physiological role, its action in response to water deficit, relationship of SA with signal transduction, transport of SA and related compounds. Further, the interplay between environmental signals and SA, its impact on transport and distribution of sugars, salicylic acid mediated stress-induced flowering and some aspects of interplay of SA with JA during the establishment of plant resistance to pathogens with different types of nutrition and participation of peroxidases have also been discussed at length. Potential use of SA in food production and its efficiency on post-harvest of perishable crops as well as practical use of SA are also covered. ​​

The chemistry of the five principal plant hormone groups is discussed in detail in this volume. Contributing authors review history and occurrence of each hormone group, methods of isolation and detection, biosynthesis and metabolism, and structural determination. Through these analyses, the authors clarify the role of endogenous plant growth regulators in the life cycle of higher plants. The text is supplemented with over 350 figures and structures of various plant hormones.