Salicylic Acid And Jasmonic Acid

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Salicylic Acid and Jasmonic Acid

Author : Phyllis Santos
Publisher : Nova Science Pub Incorporated
ISBN 13 : 9781634821384
Total Pages : 83 pages
Book Rating : 4.8/5 (213 download)

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Book Synopsis Salicylic Acid and Jasmonic Acid by : Phyllis Santos

Download or read book Salicylic Acid and Jasmonic Acid written by Phyllis Santos and published by Nova Science Pub Incorporated. This book was released on 2015-01-04 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: Salicylic acid (SA) and methyl jasmonate (MJ) signaling is associated with phospholipids and the enzymes that metabolize them. However, despite the many studies conducted, the role of SA or MJ signalling via phospholipids in plant responses is not yet fully understood. The signaling pathways of SA and MJ have been evaluated in plant cell suspensions, and it was observed that these compounds regulate enzymatic activities to generate a rapid cellular response. This book discusses the immune responses induced by salicylic acid and jasmonic acids against plant parasites; the induction by SA of in vitro thermotolerance during thermotherapy; aalicylic acid, methyl jasmonate and phospholipid signaling in suspension cells; the self-association of salicylic acid derivatives in aqueous solutions studied by methods of absorption and fluorescence; and the role of exogenous salicylic acid applications for salt tolerance in tomato plants.

Protective Chemical Agents in the Amelioration of Plant Abiotic Stress

Author : Aryadeep Roychoudhury
Publisher : John Wiley & Sons
ISBN 13 : 1119551641
Total Pages : 702 pages
Book Rating : 4.1/5 (195 download)

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Book Synopsis Protective Chemical Agents in the Amelioration of Plant Abiotic Stress by : Aryadeep Roychoudhury

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 2020-04-30 with total page 702 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.

Jasmonates and Salicylates Signaling in Plants

Author : Tariq Aftab
Publisher : Springer
ISBN 13 : 9783030758073
Total Pages : 0 pages
Book Rating : 4.7/5 (58 download)

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Book Synopsis Jasmonates and Salicylates Signaling in Plants by : Tariq Aftab

Download or read book Jasmonates and Salicylates Signaling in Plants written by Tariq Aftab and published by Springer. This book was released on 2022-07-17 with total page 0 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.

Phytohormones and Abiotic Stress Tolerance in Plants

Author : Nafees A. Khan
Publisher : Springer Science & Business Media
ISBN 13 : 364225828X
Total Pages : 312 pages
Book Rating : 4.6/5 (422 download)

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Book Synopsis Phytohormones and Abiotic Stress Tolerance in Plants by : Nafees A. Khan

Download or read book Phytohormones and Abiotic Stress Tolerance in Plants written by Nafees A. Khan and published by Springer Science & Business Media. This book was released on 2012-03-17 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plants are sessile and prone to multiple stresses in the changing environmental conditions. Of the several strategies adopted by plants to counteract the adverse effects of abiotic stress, phytohormones provide signals to allow plants to survive under stress conditions. They are one of the key systems integrating metabolic and developmental events in the whole plant and the response of plants to external factors and are essential for many processes throughout the life of a plant and influence the yield and quality of crops. The book ‘Phytohormones and Abiotic Stress Tolerance in Plants’ summarizes the current body of knowledge on crosstalk between plant stresses under the influence of phytohormones, and provides state-of-the-art knowledge of recent developments in understanding the role of phytohormones and abiotic stress tolerance in plants. This book presents information on how modulation in phytohormone levels affect regulation of biochemical and molecular mechanisms.

Salicylic Acid Signaling Networks

Author : Hua Lu
Publisher : Frontiers Media SA
ISBN 13 : 2889198278
Total Pages : 190 pages
Book Rating : 4.8/5 (891 download)

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Book Synopsis Salicylic Acid Signaling Networks by : Hua Lu

Download or read book Salicylic Acid Signaling Networks written by Hua Lu and published by Frontiers Media SA. This book was released on 2016-05-26 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: The small phenolic compound salicylic acid (SA) is critical for plant defense against a broad spectrum of pathogens. SA is also involved in multi-layered defense responses, from pathogen-associated molecular pattern triggered basal defense, resistance gene-mediated defense, to systemic acquired resistance. Recent decades have witnessed tremendous progress towards our understanding of SA-mediated signaling networks. Many genes have been identified to have direct or indirect effect on SA biosynthesis or to regulate SA accumulation. Several SA receptors have been identified and characterization of these receptors has shed light on the mechanisms of SA-mediated defense signaling, which encompass chromosomal remodeling, DNA repair, epigenetics, to transcriptional reprogramming. Molecules from plant-associated microbes have been identified, which manipulate SA levels signaling. SA does not act alone. It engages in crosstalk with other signaling pathways, such as those mediated by other phytohormones, in an agonistic or antagonistic manner, depending on hormones and pathosystems. Besides affecting plant innate immunity, SA has also been implicated in other cellular processes, such as flowering time determination, lipid metabolism, circadian clock control, and abiotic stress responses, possibly contributing to the regulation of plant development. The multifaceted function of SA makes it critically important to further identify genes involved in SA signaling networks, understand their modes of action, and delineate interactions among the components of SA signaling networks. In addition, genetic manipulation of genes involved in SA signaling networks has also provided a promising approach to enhance disease resistance in economically important plants. This ebook collects articles in the research topic “Salicylic Acid Signaling Networks.” For this collection we solicited reviews, perspectives, and original research articles that highlight recent exciting progress on the understanding of molecular mechanisms underlying SA-mediated defense, SA-crosstalk with other pathways and how microbes impact these events.

Genes Involved in Plant Defense

Author : Thomas Boller
Publisher : Springer Science & Business Media
ISBN 13 : 3709166845
Total Pages : 368 pages
Book Rating : 4.7/5 (91 download)

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Book Synopsis Genes Involved in Plant Defense by : Thomas Boller

Download or read book Genes Involved in Plant Defense written by Thomas Boller and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many fungi and bacteria that associate with plants are potentially harmful and can cause disease, while others enter into mutually beneficial sym bioses. Co-evolution of plants with pathogenic and symbiotic microbes has lead to refined mechanisms of reciprocal recognition, defense and counter defense. Genes in both partners determine and regulate these mechanisms. A detailed understanding of these genes provides basic biological insights as well as a starting point for developing novel methods of crop protection against pathogens. This volume deals with defense-related genes of plants and their regulation as well as with the genes of microbes involved in their interaction with plants. Our discussion begins at the level of populations and addresses the complex interaction of plant and microbial genes in multigenic disease resistance and its significance for crop protection as compared to mono genic resistance (Chap. 1). Although monogenic disease resistance may have its problems in the practice of crop protection, it is appealing to the experimentalist: in the so-called gene-for-gene systems, single genes in the plant and in the pathogen specify the compatibility or incompatibility of an interaction providing an ideal experimental system for studying events at the molecular level (Chaps. 2 and 4). Good progress has been made in identifying viral, bacterial, and fungal genes important in virulence and host range (Chaps. 3-6). An important aspect of plant-microbe interactions is the exchange of chemical signals. Microbes can respond to chemical signals of plant origin.

Jasmonate Signaling

Author : Alain Goossens
Publisher : Humana
ISBN 13 : 9781493960132
Total Pages : 0 pages
Book Rating : 4.9/5 (61 download)

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Book Synopsis Jasmonate Signaling by : Alain Goossens

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.

Hormone Metabolism and Signaling in Plants

Author : Jiayang Li
Publisher : Academic Press
ISBN 13 : 0128115637
Total Pages : 618 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Hormone Metabolism and Signaling in Plants by : Jiayang Li

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

SALICYLIC ACID

Author : Shamsul Hayat
Publisher : Springer Science & Business Media
ISBN 13 : 9400764286
Total Pages : 396 pages
Book Rating : 4.4/5 (7 download)

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Book Synopsis SALICYLIC ACID by : Shamsul Hayat

Download or read book SALICYLIC ACID written by Shamsul Hayat and published by Springer Science & Business Media. This book was released on 2013-04-16 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Analytical Determination of Nicotine and Related Compounds and their Metabolites

Author : J.W. Gorrod
Publisher : Elsevier
ISBN 13 : 0080525512
Total Pages : 773 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Analytical Determination of Nicotine and Related Compounds and their Metabolites by : J.W. Gorrod

Download or read book Analytical Determination of Nicotine and Related Compounds and their Metabolites written by J.W. Gorrod and published by Elsevier. This book was released on 1999-11-02 with total page 773 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides for the first time a single comprehensive source of information on the analytical chemistry of nicotine and related alkaloids. The editors have brought together scientists from academia and the tobacco industry to describe the state-of-the-art of the chemistry and analytical methods for measurement of nicotine. Both the scope and detail of the book are impressive. Chapters describe the history, pharmacology and toxicology of nicotine, the biosynthesis of nicotine and other alkaloids in the tobacco plant, the general chemistry of nicotine and the analytical methodologies that have been used to measure nicotine and related alkaloids in biological specimens, in tobacco and pharmaceutical products and in tobacco smoke. There is also a comprehensive review of the chemistry and toxicology of nicotine-derived nitrosamines, an important class of tobacco carcinogens.

Senescence Signalling and Control in Plants

Author : Maryam Sarwat
Publisher : Academic Press
ISBN 13 : 0128131888
Total Pages : 326 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Senescence Signalling and Control in Plants by : Maryam Sarwat

Download or read book Senescence Signalling and Control in Plants written by Maryam Sarwat and published by Academic Press. This book was released on 2018-11-29 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Senescence Signalling and Control in Plants discusses the studies showing the importance of hormone action on developmental senescence. It shows the involvement of various signaling components (such as EIN2, LOX2) and transcription factors (such as oresara1 or ORE1) in controlling hormonal activity during senescence. Further, the involvement of various micro RNAs (miR164, miR319) in regulating leaf senescence are discussed. Through this book, the authors throw light on all the reverse and forward genetic approaches to reveal the role of various other phytohormones regulating plant senescence and the molecular mechanisms involved. Chapters on relevant topics are contributed by experts working in the area, making this a comprehensive treatise designed to provide an in-depth analysis on the subject matter. - Throws light on the involvement of hormones (other than the well- known hormones cytokine and ethylene) in plant senescence - Shows the underlying mechanisms on the hormonal actions during senescence - Exhibits the involvement of microRNAs during this important plant developmental process

Mechanisms of Resistance to Plant Diseases

Author : R.S. Fraser
Publisher : Springer Science & Business Media
ISBN 13 : 9400951450
Total Pages : 473 pages
Book Rating : 4.4/5 (9 download)

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Book Synopsis Mechanisms of Resistance to Plant Diseases by : R.S. Fraser

Download or read book Mechanisms of Resistance to Plant Diseases written by R.S. Fraser and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant resistance to pathogens is one of the most important strategies of disease control. Knowledge of resistance mechanisms, and of how to exploit them, has made a significant contribution to agricultural productivity. However, the continuous evolution of new variants of pathogen, ana additional control problems posed by new crops and agricultural methods, creates a need for a corresponding increase in our understanding of resistance and ability to utilize it. The study of resistance mechanisms also has attractions from a purely academic point of view. First there is the breadth of the problem, which can be approached at the genetical, molecular, cellular, whole plant or population lev~ls. Often there is the possibility of productive exchange of ideas between different disciplines. Then there is the fact that despite recent advances, many of the mechanisms involved have still to be fully elucidated. Finally, and compared with workers in other areas of biology, the student of resistance is twice blessed in having as his subject the interaction of two or more organisms, with the intriguing problems of recognition, specificity and co-evolution which this raises.

Senescence and Aging in Plants

Author : L.D. Nooden
Publisher : Elsevier
ISBN 13 : 0323145957
Total Pages : 555 pages
Book Rating : 4.3/5 (231 download)

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Book Synopsis Senescence and Aging in Plants by : L.D. Nooden

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.

Insect-Plant Biology

Author : Louis M. Schoonhoven
Publisher : Oxford University Press
ISBN 13 : 019852594X
Total Pages : 441 pages
Book Rating : 4.1/5 (985 download)

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Book Synopsis Insect-Plant Biology by : Louis M. Schoonhoven

Download or read book Insect-Plant Biology written by Louis M. Schoonhoven and published by Oxford University Press. This book was released on 2005-12 with total page 441 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Half of all insect species are dependent on living plant tissues, consuming about 10% of plant annual production in natural habitats and an even greater percentage in agricultural systems, despite sophisticated control measures. Plants are generally remarkably well-protected against insect attack, with the result that most insects are highly specialized feeders. The mechanisms underlying plant resistance to invading herbivores on the one side, and insect food specialization on the other, are the main subjects of this book. For insects these include food-plant selection and the complex sensory processes involved, with their implications for learning and nutritional physiology, as well as the endocrinological aspects of life cycle synchronization with host plant phenology. In the case of plants exposed to insect herbivores, they include the activation of defence systems in order to minimize damage, as well as the emission of chemical signals that may attract natural enemies of the invading herbivores and may be exploited by neighbouring plants that mount defences as well." "Insect-Plant Biology discusses the operation of these mechanisms at the molecular and organismal levels, in the context of both ecological interactions and evolutionary relationships. In doing so, it uncovers the highly intricate antagonistic and mutualistic interactions that have evolved between plants and insects. The book concludes with a chapter on the application of our knowledge of insect-plant interactions to agricultural production." "This multidisciplinary approach will appeal to students in agricultural entomology, plant sciences, ecology, and indeed anyone interested in the principles underlying the relationships between the two largest groups of organisms on earth: plants and insects."--BOOK JACKET.Title Summary field provided by Blackwell North America, Inc. All Rights Reserved

Cucumber Mosaic Virus

Author : Peter Palukaitis
Publisher :
ISBN 13 : 9780890546116
Total Pages : 380 pages
Book Rating : 4.5/5 (461 download)

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Book Synopsis Cucumber Mosaic Virus by : Peter Palukaitis

Download or read book Cucumber Mosaic Virus written by Peter Palukaitis and published by . This book was released on 2019 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Plant-Microbe Interactions

Author : B.B. Biswas
Publisher : Springer Science & Business Media
ISBN 13 : 9780306456787
Total Pages : 472 pages
Book Rating : 4.4/5 (567 download)

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Book Synopsis Plant-Microbe Interactions by : B.B. Biswas

Download or read book Plant-Microbe Interactions written by B.B. Biswas and published by Springer Science & Business Media. This book was released on 1998-04-30 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent years have seen tremendous progress in unraveling the molecular basis of different plant-microbe interactions. Knowledge has accumulated on the mecha nisms of the microbial infection of plants, which can lead to either disease or resistance. The mechanisms developed by plants to interact with microbes, whether viruses, bacteria, or fungi, involve events that can lead to symbiotic association or to disease or tumor formation. Cell death caused by pathogen infection has been of great interest for many years because of its association with plant resistance. There appear to be two types of plant cell death associated with pathogen infection, a rapid hypersensitive cell death localized at the site of infection during an incompatible interaction between a resistant plant and an avirulent pathogen, and a slow, normosensitive plant cell death that spreads beyond the site of infection during some compatible interactions involving a susceptible plant and a virulent, necrogenic pathogen. Plants possess a number of defense mechanisms against infection, such as (i) production of phytoalexin, (ii) formation of hydrolases, (iii) accumulation of hydroxyproline-rich glycoprotein and lignin deposition, (iv) production of pathogen-related proteins, (v) produc tion of oligosaccharides, jasmonic acid, and various other phenolic substances, and (vi) production of toxin-metabolizing enzymes. Based on these observations, insertion of a single suitable gene in a particular plant has yielded promising results in imparting resistance against specific infection or disease. It appears that a signal received after microbe infection triggers different signal transduction pathways.

Phytohormones: A Window to Metabolism, Signaling and Biotechnological Applications

Author : Lam-Son Phan Tran
Publisher : Springer Science & Business Media
ISBN 13 : 1493904914
Total Pages : 367 pages
Book Rating : 4.4/5 (939 download)

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Book Synopsis Phytohormones: A Window to Metabolism, Signaling and Biotechnological Applications by : Lam-Son Phan Tran

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.