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Author: Ahmed Mansour
Publisher: VDM Publishing
ISBN:
Category : Medical
Languages : en
Pages : 118
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Book Description
Plant tolerance to heat stress proved to be entirely dependent on the signa-ling flow of information by which the plant can sense the changes in its surrounding environment and signal its genes to respond by producing special proteins to protect it-self. Any changes or manipulations in this signaling flow of information will presumably lead to a modification in the genetic expression inside the plant cells, consequently, changing plant per-formance. Understanding these signaling events in response to heat may help us to produce heat tolerant plants capable to stand high temperature stress. In the present investigation, the results showed that a heat activated MAP kinase cascade, involving heat activated MAP kinase (HAMK), played an essential role in heat shock gene expression in tobacco BY-2 cells. In order to determine if heat activation of HAMK involved additional pathways of signaling we studied the upstream regulation of HAMK, including membrane fluidization and reorganization of cytoskeleton. The activation of HAMK and accumulation of heat responsive HSFs, HSP70 and HSP27 proteins were used as end-point markers in these experiments. It is concluded that the heat shock response, as measured by HAMK activation and heat shock proteins accu-mulation required PKC activation, membrane fluidization and reorganization of the cytoskeleton. A comparative bioinformatic explanation of similarities between tobacco heat shock genes and their counterparts in different organisms revealed a high degree of evolutionary conservation in the corres-ponding domains, indicating similar function in different species.
Author: Ahmed Mansour
Publisher: VDM Publishing
ISBN:
Category : Medical
Languages : en
Pages : 118
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Book Description
Plant tolerance to heat stress proved to be entirely dependent on the signa-ling flow of information by which the plant can sense the changes in its surrounding environment and signal its genes to respond by producing special proteins to protect it-self. Any changes or manipulations in this signaling flow of information will presumably lead to a modification in the genetic expression inside the plant cells, consequently, changing plant per-formance. Understanding these signaling events in response to heat may help us to produce heat tolerant plants capable to stand high temperature stress. In the present investigation, the results showed that a heat activated MAP kinase cascade, involving heat activated MAP kinase (HAMK), played an essential role in heat shock gene expression in tobacco BY-2 cells. In order to determine if heat activation of HAMK involved additional pathways of signaling we studied the upstream regulation of HAMK, including membrane fluidization and reorganization of cytoskeleton. The activation of HAMK and accumulation of heat responsive HSFs, HSP70 and HSP27 proteins were used as end-point markers in these experiments. It is concluded that the heat shock response, as measured by HAMK activation and heat shock proteins accu-mulation required PKC activation, membrane fluidization and reorganization of the cytoskeleton. A comparative bioinformatic explanation of similarities between tobacco heat shock genes and their counterparts in different organisms revealed a high degree of evolutionary conservation in the corres-ponding domains, indicating similar function in different species.
Author: Nobuhiro Suzuki
Publisher: Frontiers Media SA
ISBN: 2889747387
Category : Science
Languages : en
Pages : 230
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Book Description
Author: S.K. Sopory
Publisher: Springer Science & Business Media
ISBN: 1461513650
Category : Science
Languages : en
Pages : 328
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Book Description
An understanding of the mechanisms by which plants perceive environmental cues, both physical and chemical, and transduce the signals that influence specific expression of genes, is an area of intensive scientific research. With the completion of the genome sequence of Arabidopsis it is understood now that a larger number of genes encode for proteins involved in signalling cascades and transcription factors. In this volume, different chapters deal with plant receptors, second messengers like calcium ions, phosphoinositides, salicylic acid and nitrous oxide, calcium binding proteins and kinases. In addition to dealing with the response of plants to light, hormones, pathogens, heat, etc. on cellular activity, work currently going on in apoptosis, cell division, and plastid gene expression is also covered in this book.
Author: Amarjit Basra
Publisher: CRC Press
ISBN: 1000945707
Category : Technology & Engineering
Languages : en
Pages : 317
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Book Description
Examine the ways in which various plants respond when exposed to high and low temperatures! The growing demand for food makes breeding for high-yielding crops with built-in resistance against environmental constraints one of the most important challenges for plant breeders today. Crop Responses and Adaptations to Temperature Stress investigates the adaptive mechanisms plants have evolved in response to unfavorable temperature conditions. It describes gene transfer technology and other tolerance improvement techniques that aid in developing stress-tolerant plants. Adverse environmental stress conditions, such as extreme temperatures, affect the productivity of important world food crops by inhibiting plant growth and development. Crop Responses and Adaptations to Temperature Stress provides valuable information on the mechanisms of stress tolerance in plants that encourage growth and enhance yield performance. Agriculture professionals, researchers, and plant breeders will benefit from the ideas shared on such topics as: mechanisms of chilling injury and tolerance injury and acclimation of root system functions during chilling temperatures mechanisms of cold acclimation signal transduction under low-temperature stress mechanisms of thermotolerance in crops control of the heat shock response in crop plants the effects of heat stress on cereal yield and quality Crop Responses and Adaptations to Temperature Stress presents detailed discussions on the effects and outcomes of crop exposure to low and high temperatures. The textual information is liberally supplemented with visual representations of field experiment data as well as comprehensive tables and schematic drawings. In addition to a detailed review of current knowledge on the molecular biology of plant responses to temperature stress and an introduction to biotechnological advances in improving crop tolerance, Crop Responses and Adaptations to Temperature Stress suggests avenues for further study and speculates on the implications of such work for the future of food production.
Author: Amarjit Basra
Publisher: CRC Press
ISBN: 9781560228905
Category : Technology & Engineering
Languages : en
Pages : 336
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Book Description
Examine the ways in which various plants respond when exposed to high and low temperatures! The growing demand for food makes breeding for high-yielding crops with built-in resistance against environmental constraints one of the most important challenges for plant breeders today. Crop Responses and Adaptations to Temperature Stress investigates the adaptive mechanisms plants have evolved in response to unfavorable temperature conditions. It describes gene transfer technology and other tolerance improvement techniques that aid in developing stress-tolerant plants. Adverse environmental stress conditions, such as extreme temperatures, affect the productivity of important world food crops by inhibiting plant growth and development. Crop Responses and Adaptations to Temperature Stress provides valuable information on the mechanisms of stress tolerance in plants that encourage growth and enhance yield performance. Agriculture professionals, researchers, and plant breeders will benefit from the ideas shared on such topics as: mechanisms of chilling injury and tolerance injury and acclimation of root system functions during chilling temperatures mechanisms of cold acclimation signal transduction under low-temperature stress mechanisms of thermotolerance in crops control of the heat shock response in crop plants the effects of heat stress on cereal yield and quality Crop Responses and Adaptations to Temperature Stress presents detailed discussions on the effects and outcomes of crop exposure to low and high temperatures. The textual information is liberally supplemented with visual representations of field experiment data as well as comprehensive tables and schematic drawings. In addition to a detailed review of current knowledge on the molecular biology of plant responses to temperature stress and an introduction to biotechnological advances in improving crop tolerance, Crop Responses and Adaptations to Temperature Stress suggests avenues for further study and speculates on the implications of such work for the future of food production.
Author: Narendra Tuteja
Publisher: John Wiley & Sons
ISBN: 3527339183
Category : Science
Languages : en
Pages : 456
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Book Description
Dieses neue Buch des bekannten Herausgeberteams bietet einen umfassenden Überblick über die molekularen Grundlagen der Reaktion von Pflanzen auf externe Stressfaktoren wie Dürre oder Schwermetalle und unterstützt die Entwicklung stressresistenter Nutzpflanzen.
Author: K.V. Madhava Rao
Publisher: Springer Science & Business Media
ISBN: 1402042256
Category : Science
Languages : en
Pages : 351
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Book Description
Biologists worldwide now speak the scientific language of molecular biology and use the same molecular tools. Interest is growing in the molecular biology of abiotic stress tolerance and modes of installing better tolerant mechanisms in crop plants. Current studies make plants capable of sustaining their yields even under stressful conditions. Further, this information may form the basis for its application in biotechnology and bioinformatics.
Author: Heribert Hirt
Publisher: Springer Science & Business Media
ISBN: 9783540200376
Category : Medical
Languages : en
Pages : 336
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Book Description
Environmental stresses represent the most limiting factors for agricultural productivity. Apart from biotic stress caused by plant pathogens, there are a number of abiotic stresses such as extremes in temperature, drought, salinity, heavy metals and radiation which all have detrimental effects on plant growth and yield. However, certain plant species and ecotypes have developed various mechanisms to adapt to such stress conditions. Recent advances in the understanding of these abiotic stress responses provided the impetus for compiling up-to-date reviews discussing all relevant topics in abiotic stress signaling of plants in a single volume. Topical reviews were prepared by selected experts and contain an introduction, discussion of the state of the art and important future tasks of the particular fields.
Author: Shabir H. Wani
Publisher: John Wiley & Sons
ISBN: 1119432367
Category : Science
Languages : en
Pages : 315
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Book Description
Demystifies the genetic, biochemical, physiological, and molecular mechanisms underlying heat stress tolerance in plants Heat stress—when high temperatures cause irreversible damage to plant function or development—severely impairs the growth and yield of agriculturally important crops. As the global population mounts and temperatures continue to rise, it is crucial to understand the biochemical, physiological, and molecular mechanisms of thermotolerance to develop ‘climate-smart’ crops. Heat Stress Tolerance in Plants provides a holistic, cross-disciplinary survey of the latest science in this important field. Presenting contributions from an international team of plant scientists and researchers, this text examines heat stress, its impact on crop plants, and various mechanisms to modulate tolerance levels. Topics include recent advances in molecular genetic approaches to increasing heat tolerance, the potential role of biochemical and molecular markers in screening germplasm for thermotolerance, and the use of next-generation sequencing to unravel the novel genes associated with defense and metabolite pathways. This insightful book: Places contemporary research on heat stress in plants within the context of global climate change and population growth Includes diverse analyses from physiological, biochemical, molecular, and genetic perspectives Explores various approaches to increasing heat tolerance in crops of high commercial value, such as cotton Discusses the applications of plant genomics in the development of thermotolerant ‘designer crops’ An important contribution to the field, Heat Stress Tolerance in Plants is an invaluable resource for scientists, academics, students, and researchers working in fields of pulse crop biochemistry, physiology, genetics, breeding, and biotechnology.
Author: M. Iqbal R. Khan
Publisher: Woodhead Publishing
ISBN: 0128164522
Category : Science
Languages : en
Pages : 596
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Book Description
Plant Signaling Molecule: Role and Regulation under Stressful Environments explores tolerance mechanisms mediated by signaling molecules in plants for achieving sustainability under changing environmental conditions. Including a wide range of potential molecules, from primary to secondary metabolites, the book presents the status and future prospects of the role and regulation of signaling molecules at physiological, biochemical, molecular and structural level under abiotic stress tolerance. This book is designed to enhance the mechanistic understanding of signaling molecules and will be an important resource for plant biologists in developing stress tolerant crops to achieve sustainability under changing environmental conditions. Focuses on plant biology under stress conditions Provides a compendium of knowledge related to plant adaptation, physiology, biochemistry and molecular responses Identifies treatments that enhance plant tolerance to abiotic stresses Illustrates specific physiological pathways that are considered key points for plant adaptation or tolerance to abiotic stresses
