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Book Jasmonates and Brassinosteroids in Plants

Download or read book Jasmonates and Brassinosteroids in Plants written by Ramakrishna Akula and published by CRC Press. This book was released on 2022-09-27 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Book Jasmonates and Brassinosteroids in Plants

Download or read book Jasmonates and Brassinosteroids in Plants written by Ramakrishna Akula and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "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"--

Book Brassinosteroids  A Class of Plant Hormone

Download or read book Brassinosteroids A Class of Plant Hormone written by Shamsul Hayat and published by Springer Science & Business Media. This book was released on 2010-11-01 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt: The entire range of the developmental processes in plants is regulated by a shift in the hormonal concentration, tissue sensitivity and their interaction with the factors operating around them. Out of the recognized hormones, attention has largely been focused on five - Auxins, Gibberellins, Cytokinin, Abscisic acid and Ethylene. However, the information about the most recent group of phytohormone (Brassinosteroids) has been incorporated in this book. This volume includes a selection of newly written, integrated, illustrated reviews describing our knowledge of Brassinosteroids and aims to describe them at the present time. Various chapters incorporate both theoretical and practical aspects and may serve as baseline information for future researches through which significant developments are possible. This book will be useful to the students, teachers and researchers, both in universities and research institutes, especially in relation to biological and agricultural sciences.

Book Protective Chemical Agents in the Amelioration of Plant Abiotic Stress

Download or read book Protective Chemical Agents in the Amelioration of Plant Abiotic Stress written by Aryadeep Roychoudhury and published by John Wiley & Sons. This book was released on 2020-07-07 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt: A guide to the chemical agents that protect plants from various environmental stressors Protective Chemical Agents in the Amelioration of Plant Abiotic Stress offers a guide to the diverse chemical agents that have the potential to mitigate different forms of abiotic stresses in plants. Edited by two experts on the topic, the book explores the role of novel chemicals and shows how using such unique chemical agents can tackle the oxidative damages caused by environmental stresses. Exogenous application of different chemical agents or chemical priming of seeds presents opportunities for crop stress management. The use of chemical compounds as protective agents has been found to improve plant tolerance significantly in various crop and non-crop species against a range of different individually applied abiotic stresses by regulating the endogenous levels of the protective agents within plants. This important book: Explores the efficacy of various chemical agents to eliminate abiotic stress Offers a groundbreaking look at the topic and reviews the most recent advances in the field Includes information from noted authorities on the subject Promises to benefit agriculture under stress conditions at the ground level Written for researchers, academicians, and scientists, Protective Chemical Agents in the Amelioration of Plant Abiotic Stress details the wide range of protective chemical agents, their applications, and their intricate biochemical and molecular mechanism of action within the plant systems during adverse situations.

Book Hormone Metabolism and Signaling in Plants

Download or read book Hormone Metabolism and Signaling in Plants written by Jiayang Li and published by Academic Press. This book was released on 2017-04-19 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant Hormones: Biosynthesis and Mechanisms of Action is based on research funded by the Chinese government's National Natural Science Foundation of China (NSFC). This book brings a fresh understanding of hormone biology, particularly molecular mechanisms driving plant hormone actions. With growing understanding of hormone biology comes new outlooks on how mankind values and utilizes the built-in potential of plants for improvement of crops in an environmentally friendly and sustainable manner. This book is a comprehensive description of all major plant hormones: how they are synthesized and catabolized; how they are perceived by plant cells; how they trigger signal transduction; how they regulate gene expression; how they regulate plant growth, development and defense responses; and how we measure plant hormones. This is an exciting time for researchers interested in plant hormones. Plants rely on a diverse set of small molecule hormones to regulate every aspect of their biological processes including development, growth, and adaptation. Since the discovery of the first plant hormone auxin, hormones have always been the frontiers of plant biology. Although the physiological functions of most plant hormones have been studied for decades, the last 15 to 20 years have seen a dramatic progress in our understanding of the molecular mechanisms of hormone actions. The publication of the whole genome sequences of the model systems of Arabidopsis and rice, together with the advent of multidisciplinary approaches has opened the door to successful experimentation on plant hormone actions. - Offers a comprehensive description of all major plant hormones including the recently discovered strigolactones and several peptide hormones - Contains a chapter describing how plant hormones regulate stem cells - Offers a fresh understanding of hormone biology, particularly molecular mechanisms driving plant hormone actions - Discusses the built-in potential of plants for improvement of crops in an environmentally friendly and sustainable manner

Book Brassinosteroids  Plant Growth and Development

Download or read book Brassinosteroids Plant Growth and Development written by Shamsul Hayat and published by Springer. This book was released on 2019-04-02 with total page 441 pages. Available in PDF, EPUB and Kindle. Book excerpt: The entire range of the developmental process in plants is regulated by a shift in the hormonal concentration, tissue sensitivity and their interaction with the factors operating around the plants. Phytohormones play a crucial role in regulating the direction of plant in a coordinated fashion in association with metabolism that provides energy and the building blocks to generate the form that we recognize as a plant. Out of the recognized hormones, attention has largely been focused on Auxins, Gibberellins, Cytokinins, Abscisic acid, Ethylene and more recently on Brassinosteroids. In this book we are providing the information about a brassinosteroids that again confirm its status as phytohormones because it has significant impact on various aspects of the plant life and its ubiquitous distribution throughout the plant kingdom. Brassinosteroids are generating a significant impact on plant growth and development, photosynthesis, transpiration, ion uptake and transport, induces specific changes in leaf anatomy and chloroplast structure. This book is not an encyclopedia of reviews but includes a selected collection of newly written, integrated, illustrated reviews describing our knowledge of brassinosteroids. The aim of this book is to tell all about brassinosteroids, by the present time. The various chapters incorporate both theoretical and practical aspects and may serve as baseline information for future researches through which significant development is possible. It is intended that this book will be useful to the students, teachers and researchers, both in universities and research institutes, especially in relation to biological and agricultural sciences.

Book Plant Growth Regulators

    Book Details:
  • Author : Tariq Aftab
  • Publisher : Springer Nature
  • Release : 2021-03-25
  • ISBN : 3030611531
  • Pages : 504 pages

Download or read book Plant Growth Regulators written by Tariq Aftab and published by Springer Nature. This book was released on 2021-03-25 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agriculture faces many challenges to fulfil the growing demand for sustainable food production and ensure high-quality nutrition for a rapidly growing population. To guarantee adequate food production, it is necessary to increase the yield per area of arable land. A method for achieving this goal has been the application of growth regulators to modulate plant growth. Plant growth regulators (PGRs) are substances in specific formulations which, when applied to plants or seeds, have the capacity to promote, inhibit, or modify physiological traits, development and/or stress responses. They maintain proper balance between source and sink for enhancing crop yield. PGRs are used to maximize productivity and quality, improve consistency in production, and overcome genetic and abiotic limitations to plant productivity. Suitable PGRs include hormones such as cytokinins and auxins, and hormone-like compounds such as mepiquat chloride and paclobutrazol. The use of PGRs in mainstream agriculture has steadily increased within the last 20 years as their benefits have become better understood by growers. Unfortunately, the growth of the PGR market may be constrained by a lack of innovation at a time when an increase in demand for new products will require steady innovation and discovery of novel, cost-competitive, specific, and effective PGRs. A plant bio-stimulant is any substance or microorganism applied to plants with the aim to enhance nutrition efficiency, abiotic stress tolerance and/or crop quality traits, regardless of its nutrients content. Apart from traditional PGRs, which are mostly plant hormones, there are a number of substances/molecules such as nitric oxide, methyl jasmonate, brassinosteroids, seaweed extracts, strigolactones, plant growth promoting rhizobacteria etc. which act as PGRs. These novel PGRs or bio-stimulants have been reported to play important roles in stress responses and adaptation. They can protect plants against various stresses, including water deficit, chilling and high temperatures, salinity and flooding. This book includes chapters ranging from sensing and signalling in plants to translational research. In addition, the cross-talk operative in plants in response to varied signals of biotic and abiotic nature is also presented. Ultimately the objective of this book is to present the current scenario and the future plan of action for the management of stresses through traditional as well as novel PGRs. We believe that this book will initiate and introduce readers to state-of-the-art developments and trends in this field of study.

Book Jasmonates and Plant Defense

Download or read book Jasmonates and Plant Defense written by Uzma Azeem and published by CRC Press. This book was released on 2024-10-03 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rapid change in environmental conditions is likely to override the adaptive efficiency of plants.Jasmonates are a class of plant hormones that have strong potential to ameliorate various abiotic and biotic stresses, such as exposure to mechanical stress, osmotic stress, herbivory, exposure to UV irradiation, damage from ozone, and heavy metal stress. This new book highlights the beneficial presence and roles of jasmonates in plants, discussing the use of jasmonates in nano- and micromolecular concentrations to mitigate the toxic effects of various biotic and abiotic stresses and to improve crop yield in an eco-friendly and sustainable manner. It discusses in detail the genetic basis of jasmonates’ action, effects of jasmonates on the antioxidant defense system, crosstalk between jasmonates and other plant hormones, how jasmonates enhance plant defense under biotic and abiotic stresses, and more.

Book Brassinosteroids in Plant Developmental Biology and Stress Tolerance

Download or read book Brassinosteroids in Plant Developmental Biology and Stress Tolerance written by Golam Jalal Ahammed and published by Academic Press. This book was released on 2021-11-19 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Brassinosteroids in Plant Developmental Biology and Stress Tolerance provides insights into understanding the mechanisms of Brassinosteroid-regulated plant developmental biology and stress tolerance covering various biochemical, physiological, genetic and molecular studies. As unprecedented climate change poses a serious threat to global food security by intensifying environmental stresses, studies reveal that Brassinosteroids (BRs) could not only protect plants from stresses to ensure food security, but could also reduce toxic compounds in edible plant parts for assuring food safety. Therefore, utilization of BRs in modern agriculture will be of great significance in the context of global climate change. This book also highlights key information for developing eco-friendly growth regulators and understanding the importance of brassinosteroids in safe food production. - Presents the multifaceted roles of brassinosteroids as phytohormones in plant growth, development and response to biotic and/or abiotic stresses - Unveils the physiological and molecular mechanisms controlling plant stress response to biotic and abiotic stress - Discusses developmental processes relating to environmental adaptations that are mediated by brassinosteroids - Brings together recent works of experts studying brassinosteroid crosstalk with other signals, including hormones, sugars, redox and light signals

Book Senescence and Aging in Plants

Download or read book Senescence and Aging in Plants written by L.D. Nooden and published by Elsevier. This book was released on 2012-12-02 with total page 555 pages. Available in PDF, EPUB and Kindle. Book excerpt: Senescence and Aging in Plants reviews the state of knowledge in the processes involved in plant senescence and aging. The book begins by discussing the emergence of senescence as a concept; experimental analysis of senescence; and patterns of senescence. It then examines membrane deterioration during senescence; photosynthesis in relation to leaf senescence; senescence of detached plant organs; changing patterns of nucleic acid and protein synthesis during senescence; and degradative and associated assimilatory aspects of nitrogen removal. This is followed by chapters on aspects of ethylene that may impinge upon its role in promoting senescence of higher plants; the role of cytokinins in plant senescence; the promoters and retardants of senescence; and the role of calcium in plant senescence. The concept of whole plant senescence is discussed, which can be subdivided into patterns, correlative controls, cessation of vegetative growth, declining assimilatory processes, assimilate partitioning, and hormonal controls. The final chapters cover the deterioration of cellular membranes during the plant aging process and seed aging.

Book Hormonal Cross Talk  Plant Defense and Development

Download or read book Hormonal Cross Talk Plant Defense and Development written by Azamal Husen and published by Elsevier. This book was released on 2023-06-20 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hormonal Cross-Talk, Plant Defense and Development: Plant Biology, Sustainability and Climate Change focuses specifically on plants and their interaction to auxins, gibberellins, cytokinins, ethylene, abscisic acid, jasmonates, brassinosteroids, strigolactones, and the potential those interactions offer for improved plant health and production. Plant hormones (auxins, gibberellins, cytokinins, ethylene, abscisic acid, jasmonates, brassinosteroids, salicylic acid, strigolactones etc.) regulate numerous aspects of plant growth and developmental processes. Each hormone initiates a specific molecular pathway, with each pathway integrated in a complex network of synergistic, antagonistic and additive interactions. This is a valuable reference for those seeking to understand and improve plant health using natural processes. The cross-talks of auxins - abscisic acid, auxins - brassinosteroids, brassinosteroids- abscisic acid, ethylene - abscisic acid, brassinosteroids - ethylene, cytokinins - abscisic acid, brassinosteroids - jasmonates, brassinosteroids - salicylic acid, and gibberellins - jasmonates - strigolactones have been shown to regulate a number of biological processes in plant system. The cross-talk provides robustness to the plant immune system but also drives specificity of induced defense responses against the plethora of biotic and abiotic interactions. - Describes hormonal cross-talk and plant defense with suitable illustrations - Includes a focus on secondary metabolites and/or bioactive compounds interactions with various plant hormones - Highlights the use of plant hormones and their interactions in plant growth and developmental processes at physiological, biochemical and molecular levels

Book Brassinosteroids

    Book Details:
  • Author : Shamsul Hayat
  • Publisher : Springer Science & Business Media
  • Release : 2013-06-29
  • ISBN : 9401709483
  • Pages : 254 pages

Download or read book Brassinosteroids written by Shamsul Hayat and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: The entire range of the developmental processes in plants is regulated by the shift in the hormonal concentration, tissue sensitivity and their interaction with the factors operating around the plants. Out of the recognized hormones, attention has largely been focused on five (Auxins, Gibberellins, Cytokinin, Abscisic acid and Ethylene). However, in this book, the information about the most recent group of phytohormones (Brassinosteroids) has been compiled by us. It is a class of over 40 polyhydroxylated sterol derivatives, ubiquitously distributed throughout the plant kingdom. A large portion of these steroids is restricted to the reproductive organs (pollens and immature seeds). Moreover, their strong growth-inducing capacity, recognized as early as prior to their identification in 1979, tempted the scientists to visualize the practical importance of this group of phytohormones. The brassin solution, from rape pollen, was used in a collaborative project by the scientists of Brazil and U. S. A. in a p- sowing seed treatment to augment the yield. This was followed by large-scale scientific programmes in U. S. , Japan, China, Germany and erstwhile U. S. S. R. , after the isolation of the brassinosteroids. This approach suits best in today’s context where plants are targeted only as producers and hormones are employed to get desired results. Chapter 1 of this book (which embodies a total of 10 chapters), gives a comprehensive survey of the hitherto known brassinosteroids, isolated from lower and higher plants.

Book Brassinosteroids  A Class of Plant Hormone

Download or read book Brassinosteroids A Class of Plant Hormone written by Shamsul Hayat and published by Springer. This book was released on 2010-11-30 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: The entire range of the developmental processes in plants is regulated by a shift in the hormonal concentration, tissue sensitivity and their interaction with the factors operating around them. Out of the recognized hormones, attention has largely been focused on five - Auxins, Gibberellins, Cytokinin, Abscisic acid and Ethylene. However, the information about the most recent group of phytohormone (Brassinosteroids) has been incorporated in this book. This volume includes a selection of newly written, integrated, illustrated reviews describing our knowledge of Brassinosteroids and aims to describe them at the present time. Various chapters incorporate both theoretical and practical aspects and may serve as baseline information for future researches through which significant developments are possible. This book will be useful to the students, teachers and researchers, both in universities and research institutes, especially in relation to biological and agricultural sciences.

Book Jasmonate Signaling

    Book Details:
  • Author : Alain Goossens
  • Publisher : Humana
  • Release : 2016-08-23
  • ISBN : 9781493960132
  • Pages : 0 pages

Download or read book Jasmonate Signaling written by Alain Goossens and published by Humana. This book was released on 2016-08-23 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Book Jasmonates and Salicylates Signaling in Plants

Download or read book Jasmonates and Salicylates Signaling in Plants written by Tariq Aftab and published by Springer Nature. This book was released on 2021-07-15 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: Demand for agricultural crops and nutritional requirement continues to escalate in response to increasing population. Also, climate change exerts adverse effects on agriculture crop productivity. Plant researchers have, therefore, focused to identify the scientific approaches that minimize the negative impacts of climate change on agricultural crops. Thus, it is the need of the hour to expedite the process for improving stress tolerance mechanisms in agricultural crops against various environmental factors, in order to fulfil the world’s food demand. Among the various applied approaches, the application of phytohormones has gained significant attention in inducing stress tolerance mechanisms. Jasmonates are phytohormones with ubiquitous distribution among plants and generally considered to modulate many physiological events in higher plants such as defence responses, flowering and senescence. Also, jasmonates mediate plant responses to many biotic and abiotic stresses by triggering a transcriptional reprogramming that allows cells to cope with pathogens and stresses. Likewise, salicylates are important signal molecules for modulating plant responses to environmental stresses. Salicylic acid influences a range of diverse processes in plants, including seed germination, stomatal closure, ion uptake and transport, membrane permeability and photosynthetic and growth rate. Understanding the significant roles of these phytohormones in plant biology and from agriculture point of view, the current subject has recently attracted the attention of scientists from across the globe. Therefore, we bring forth a comprehensive book “Jasmonates and Salicylates Signalling in Plants” highlighting the various prospects involved in the current scenario. The book comprises chapters from diverse areas dealing with biotechnology, molecular biology, proteomics, genomics, metabolomics, etc. We are hopeful that this comprehensive book furnishes the requisite of all those who are working or have interest in this topic.

Book Phytohormones  A Window to Metabolism  Signaling and Biotechnological Applications

Download or read book Phytohormones A Window to Metabolism Signaling and Biotechnological Applications written by Lam-Son Phan Tran and published by Springer Science & Business Media. This book was released on 2014-04-01 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abiotic and biotic stresses adversely affect plant growth and productivity. The phytohormones regulate key physiological events under normal and stressful conditions for plant development. Accumulative research efforts have discovered important roles of phytohormones and their interactions in regulation of plant adaptation to numerous stressors. Intensive molecular studies have elucidated various plant hormonal pathways; each of which consist of many signaling components that link a specific hormone perception to the regulation of downstream genes. Signal transduction pathways of auxin, abscisic acid, cytokinins, gibberellins and ethylene have been thoroughly investigated. More recently, emerging signaling pathways of brassinosteroids, jasmonates, salicylic acid and strigolactones offer an exciting gateway for understanding their multiple roles in plant physiological processes. At the molecular level, phytohormonal crosstalks can be antagonistic or synergistic or additive in actions. Additionally, the signal transduction component(s) of one hormonal pathway may interplay with the signaling component(s) of other hormonal pathway(s). Together these and other research findings have revolutionized the concept of phytohormonal studies in plants. Importantly, genetic engineering now enables plant biologists to manipulate the signaling pathways of plant hormones for development of crop varieties with improved yield and stress tolerance. This book, written by internationally recognized scholars from various countries, represents the state-of-the-art understanding of plant hormones’ biology, signal transduction and implications. Aimed at a wide range of readers, including researchers, students, teachers and many others who have interests in this flourishing research field, every section is concluded with biotechnological strategies to modulate hormone contents or signal transduction pathways and crosstalk that enable us to develop crops in a sustainable manner. Given the important physiological implications of plant hormones in stressful environments, our book is finalized with chapters on phytohormonal crosstalks under abiotic and biotic stresses.

Book Plant Hormones

    Book Details:
  • Author : Peter J. Davies
  • Publisher : Springer Science & Business Media
  • Release : 2007-11-06
  • ISBN : 1402026862
  • Pages : 830 pages

Download or read book Plant Hormones written by Peter J. Davies and published by Springer Science & Business Media. This book was released on 2007-11-06 with total page 830 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant hormones play a crucial role in controlling the way in which plants grow and develop. While metabolism provides the power and building blocks for plant life, it is the hormones that regulate the speed of growth of the individual parts and integrate them to produce the form that we recognize as a plant. This book is a description of these natural chemicals: how they are synthesized and metabolized, how they act at both the organismal and molecular levels, how we measure them, a description of some of the roles they play in regulating plant growth and development, and the prospects for the genetic engineering of hormone levels or responses in crop plants. This is an updated revision of the third edition of the highly acclaimed text. Thirty-three chapters, including two totally new chapters plus four chapter updates, written by a group of fifty-five international experts, provide the latest information on Plant Hormones, particularly with reference to such new topics as signal transduction, brassinosteroids, responses to disease, and expansins. The book is not a conference proceedings but a selected collection of carefully integrated and illustrated reviews describing our knowledge of plant hormones and the experimental work that is the foundation of this information. The Revised 3rd Edition adds important information that has emerged since the original publication of the 3rd edition. This includes information on the receptors for auxin, gibberellin, abscisic acid and jasmonates, in addition to new chapters on strigolactones, the branching hormones, and florigen, the flowering hormone.