Download or read book Stress and Environmental Regulation of Gene Expression and Adaptation in Bacteria 2 Volume Set written by Frans J. de Bruijn and published by John Wiley & Sons. This book was released on 2016-09-06 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bacteria in various habitats are subject to continuously changing environmental conditions, such as nutrient deprivation, heat and cold stress, UV radiation, oxidative stress, dessication, acid stress, nitrosative stress, cell envelope stress, heavy metal exposure, osmotic stress, and others. In order to survive, they have to respond to these conditions by adapting their physiology through sometimes drastic changes in gene expression. In addition they may adapt by changing their morphology, forming biofilms, fruiting bodies or spores, filaments, Viable But Not Culturable (VBNC) cells or moving away from stress compounds via chemotaxis. Changes in gene expression constitute the main component of the bacterial response to stress and environmental changes, and involve a myriad of different mechanisms, including (alternative) sigma factors, bi- or tri-component regulatory systems, small non-coding RNA’s, chaperones, CHRIS-Cas systems, DNA repair, toxin-antitoxin systems, the stringent response, efflux pumps, alarmones, and modulation of the cell envelope or membranes, to name a few. Many regulatory elements are conserved in different bacteria; however there are endless variations on the theme and novel elements of gene regulation in bacteria inhabiting particular environments are constantly being discovered. Especially in (pathogenic) bacteria colonizing the human body a plethora of bacterial responses to innate stresses such as pH, reactive nitrogen and oxygen species and antibiotic stress are being described. An attempt is made to not only cover model systems but give a broad overview of the stress-responsive regulatory systems in a variety of bacteria, including medically important bacteria, where elucidation of certain aspects of these systems could lead to treatment strategies of the pathogens. Many of the regulatory systems being uncovered are specific, but there is also considerable “cross-talk” between different circuits. Stress and Environmental Regulation of Gene Expression and Adaptation in Bacteria is a comprehensive two-volume work bringing together both review and original research articles on key topics in stress and environmental control of gene expression in bacteria. Volume One contains key overview chapters, as well as content on one/two/three component regulatory systems and stress responses, sigma factors and stress responses, small non-coding RNAs and stress responses, toxin-antitoxin systems and stress responses, stringent response to stress, responses to UV irradiation, SOS and double stranded systems repair systems and stress, adaptation to both oxidative and osmotic stress, and desiccation tolerance and drought stress. Volume Two covers heat shock responses, chaperonins and stress, cold shock responses, adaptation to acid stress, nitrosative stress, and envelope stress, as well as iron homeostasis, metal resistance, quorum sensing, chemotaxis and biofilm formation, and viable but not culturable (VBNC) cells. Covering the full breadth of current stress and environmental control of gene expression studies and expanding it towards future advances in the field, these two volumes are a one-stop reference for (non) medical molecular geneticists interested in gene regulation under stress.
Download or read book Stress and Environmental Regulation of Gene Expression and Adaptation in Bacteria written by Frans J. de Bruijn and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Stressors and Gene Responses written by J.M. Storey and published by Elsevier. This book was released on 2000-07-31 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cell and Molecular Responses to Stress is a new multi-volume book series from Elsevier Science that focuses on how organisms respond at a molecular level to environmental stresses imposed upon them. All organisms deal with variations in multiple environmental factors including temperature, oxygen, salinity, and water availability. Many show amazing tolerances to extreme stress with remarkable biochemical adaptations that allow life to persist under very difficult circumstances. This series explores the molecular mechanisms by which cells and organisms respond to stress, focusing on the variations in metabolic response that allow some cells and organisms to deal with extreme stress, others to endure stress within strict limits, and others to have a very low tolerance for changes in environmental parameters.Articles from within the series highlight the elastic limits of molecular responses in Nature, with examples drawn from animal, plant and bacteria systems.Volume 1, begins by considering some of the roles of environmental stress in determining the geographic distribution of animals and in promoting species divergence and then explores gene expression and metabolic responses to environmental stress with examples of adaptation to high and low temperature, osmotic, anoxia/ischemia, desiccation, high pressure and heavy metal stresses.
Download or read book Stress Induced Mutagenesis written by David Mittelman and published by Springer Science & Business Media. This book was released on 2013-03-12 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: The discovery of stress-induced mutagenesis has changed ideas about mutation and evolution, and revealed mutagenic programs that differ from standard spontaneous mutagenesis in rapidly proliferating cells. The stress-induced mutations occur during growth-limiting stress, and can include adaptive mutations that allow growth in the otherwise growth-limiting environment. The stress responses increase mutagenesis specifically when cells are maladapted to their environments, i.e. are stressed, potentially accelerating evolution then. The mutation mechanism also includes temporary suspension of post-synthesis mismatch repair, resembling mutagenesis characteristic of some cancers. Stress-induced mutation mechanisms may provide important models for genome instability underlying some cancers and genetic diseases, resistance to chemotherapeutic and antibiotic drugs, pathogenicity of microbes, and many other important evolutionary processes. This book covers pathways of stress-induced mutagenesis in all systems. The principle focus is mammalian systems, but much of what is known of these pathways comes from non-mammalian systems.
Download or read book Models of Life written by Kim Sneppen and published by Cambridge University Press. This book was released on 2014-10-02 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: An overview of current models of biological systems, reflecting the major advances that have been made over the past decade.
Download or read book Stress Response in Pathogenic Bacteria written by Stephen P. Kidd and published by CABI. This book was released on 2011 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ability of pathogenic bacteria to adapt to various chemical, biochemical and physical conditions within the human host and their ability to respond to stresses generated in these environments is a central feature of infectious diseases and the outcome of bacterial infection. This book covers the key aspects of this rapidly developing field, including the generation of stresses by the host immune system, bacterial response to reactive chemicals, and adaptation to environmental conditions of anatomical niches such as the gut, mouth and urogenital tract. It also addresses the increasing importance of different metal ions in the pathogenesis and survival of specific bacteria. With chapters by active research experts in the field, the book provides a comprehensive outline of the current understanding of this field, the latest developments and where future research is likely to be directed.
Download or read book Community Series Extremophiles Microbial Genomics and Taxogenomics Volume II written by Rafael R. de la Haba and published by Frontiers Media SA. This book was released on 2024-02-08 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Research Topic is the second volume of the 'Community series-Extremophiles: Microbial Genomics and Taxogenomics'. Please see the first volume here. Extreme habitats exist across the globe and span over three quarters of our planet. They can be widely different from a physical-chemical perspective as they include diverse types of extreme, such as temperature, pH, salinity, radiation, pressure, low water activity, low nutrient availability, etc. Organisms capable of adjusting, surviving, or thriving in those habitats, which are so hostile that they were previously thought to be adverse or lethal for life, are called “extremophiles”.
Download or read book Nucleic Acids written by Marcelo Larramendy and published by BoD – Books on Demand. This book was released on 2016-03-16 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited book, "Nucleic Acids - From Basic Aspects to Laboratory Tools", contains a series of chapters that highlight the development and status of the various aspects of the nucleic acids related to DNA chemistry and biology and the molecular application of these small DNA molecules and related synthetic analogues within biological systems. Furthermore, it is hoped that the information in the present book will be of value to those directly engaged in the handling and use of nucleic acids, and that this book will continue to meet the expectations and needs of all who are interested in the different fascinating aspects of molecular biology.
Download or read book The Model Legume Medicago truncatula 2 Volume Set written by Frans J. de Bruijn and published by John Wiley & Sons. This book was released on 2020-01-29 with total page 1264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fully covers the biology, biochemistry, genetics, and genomics of Medicago truncatula Model plant species are valuable not only because they lead to discoveries in basic biology, but also because they provide resources that facilitate translational biology to improve crops of economic importance. Plant scientists are drawn to models because of their ease of manipulation, simple genome organization, rapid life cycles, and the availability of multiple genetic and genomic tools. This reference provides comprehensive coverage of the Model Legume Medicago truncatula. It features review chapters as well as research chapters describing experiments carried out by the authors with clear materials and methods. Most of the chapters utilize advanced molecular techniques and biochemical analyses to approach a variety of aspects of the Model. The Model Legume Medicago truncatula starts with an examination of M. truncatula plant development; biosynthesis of natural products; stress and M. truncatula; and the M. truncatula-Sinorhizobium meliloti symbiosis. Symbiosis of Medicago truncatula with arbuscular mycorrhiza comes next, followed by chapters on the common symbiotic signaling pathway (CSSP or SYM) and infection events in the Rhizobium-legume symbiosis. Other sections look at hormones and the rhizobial and mycorrhizal symbioses; autoregulation of nodule numbers (AON) in M. truncatula; Medicago truncatula databases and computer programs; and more. Contains reviews, original research chapters, and methods Covers most aspects of the M. truncatula Model System, including basic biology, biochemistry, genetics, and genomics of this system Offers molecular techniques and advanced biochemical analyses for approaching a variety of aspects of the Model Legume Medicago truncatula Includes introductions by the editor to each section, presenting the summary of selected chapters in the section Features an extensive index, to facilitate the search for key terms The Model Legume Medicago truncatula is an excellent book for researchers and upper level graduate students in microbial ecology, environmental microbiology, plant genetics and biochemistry. It will also benefit legume biologists, plant molecular biologists, agrobiologists, plant breeders, bioinformaticians, and evolutionary biologists.
Download or read book Regulation of gene expression in enteropathogenic bacteria Volume III written by Dongsheng Zhou and published by Frontiers Media SA. This book was released on 2023-05-12 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Regulation of Gene Expression by Small RNAs written by Rajesh K. Gaur and published by CRC Press. This book was released on 2009-04-27 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: New Findings Revolutionize Concepts of Gene FunctionEndogenous small RNAs have been found in various organisms, including humans, mice, flies, worms, fungi, and bacteria. Furthermore, it's been shown that microRNAs acting as cellular rheostats have the ability to modulate gene expression. In higher eukaryotes, microRNAs may regulate as much as 50 p
Download or read book Microbial Ecology and Infectious Disease written by Eugene Rosenberg and published by ASM Press. This book was released on 1999 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent research in microbial ecology has revealed new tools and new concepts which can stimulate medical microbiology. Similarly, some of the best research in microbial ecology has been carried out by medical microbiologists trying to understand how microorganisms survive and live in a particular ecological niche in the human body. This new volume emphasizes how interaction between these two disciplines can stimulate new research approaches and lead to unifying concepts. Experts review important new topics in microbiology, including quorum sensing, horizontal gene transfer in Vibrio cholerae, anthrax toxin, invasion mechanisms, bacterial bleaching of corals, response to starvation, cell–to–cell interactions, natural genetic engineering, and prions. Each chapter offers a general introduction to the topic, a specific introduction to the research, a critical evaluation of the most recent research on the subject, and a special section on unresolved questions and future research. The book also provides an up–to–date and comprehensive bibliography. Microbial Ecology and Infectious Disease contains a selection of some of the best recent research in microbial ecology and the mechanisms of infectious disease. It is valuable reading for teachers, students, and researchers in general microbiology, medical microbiology, and microbial ecology.
Download or read book Yeast Stress Responses written by Stefan Hohmann and published by Springer Science & Business Media. This book was released on 2003-01-17 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Every cell has developed mechanisms to respond to changes in its environment and to adapt its growth and metabolism to unfavorable conditions. The unicellular eukaryote yeast has long proven as a particularly useful model system for the analysis of cellular stress responses, and the completion of the yeast genome sequence has only added to its power This volume comprehensively reviews both the basic features of the yeast genral stress response and the specific adapations to different stress types (nutrient depletion, osmotic and heat shock as well as salt and oxidative stress). It includes the latest findings in the field and discusses the implications for the analysis of stress response mechanisms in higher eukaryotes as well.
Download or read book Stress Proteins written by David S. Latchman and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work is concerned with a group of proteins which were originally consid ered to be an esoteric phenomenon but which have now been shown to play critical roles both in normal and stressed cells as well as being involved in a variety of human diseases. It is the purpose of this work to give a comprehen sive view of these proteins and their various aspects. After an introductory chapter providing an overview of these proteins, the work is divided into four main sections each of which deals with one important aspect of these proteins. Thus, the first section contains a series of chapters which describe individual stress proteins and their roles in particular biological phenomena. Evidently, the induction of these proteins by elevated tempera ture or other stresses is their defining feature and the second section of this book therefore considers the regulation of stress protein gene expression both by stressful stimuli such as elevated temperature or ischaemia and by non stressful stimuli such as cytokines.
Download or read book Microbes in Microbial Communities written by Raghvendra Pratap Singh and published by Springer Nature. This book was released on 2022-01-01 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book overviews the complex interactions amongst the microbes and their possible applications. Emphasis has been made to include a wide spectrum of experimental and theoretical contributions from eminent researchers in the field. Microbial communities are the assemblages of microorganisms of various species which live together in the same environment and continuously interact with each other. The microbial cells in communities display unique phenotypes that affect the survival and reproduction of other cells present around them. These phenotypes constitute the social adaptations that drive the interactions between microbial cells. The interactions, further determine the productivity, stability and the ability of community to resist the environmental perturbations. These microbial communities live with extremely competitive niche and fight for their survival and genetic persistence. But they frequently appear in niche with multifaceted and interactive webs rather than the planktonic nature. This can be within the same species or with different species, or even with diverse genera and families. It either a competitive winner community whereas the “weaker” strain goes extinct or a competitor that coexist with their metabolic secretory potentials or a separator that assigned their own community territorial niches. Sometimes, it can be neutral or tritagonist. These microbial associations within the microbiome provides the foundation for diverse forms of microbial ecology and determined the applied perspectives for agriculture, clinical and industrial sectors. This book will be useful to postgraduate students, researchers from academic as well as industry working in the field of microbial exploration with keen interest in survival factors and mechanism of their survival by various ecological and functional strategies.
Download or read book Multilateral Interactions In The Rhizosphere written by Soumitra Paul Chowdhury and published by Frontiers Media SA. This book was released on 2023-09-05 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rhizosphere is an ecological hotspot. Plant roots, bacteria, archaea, fungi, nematodes, and other macroscopic organisms interact here with each other. Plants represent the main influencing force as they produce a mixture of chemical molecules and extrude them in the form of root exudates. Those exudates determine not only the nutrient availability of the plant but also influence the outcome of the interactions in the vicinity of the roots. In response to the plant-derived signals, a subset of the bulk soil microbes can proliferate in the proximity of the root and some of them can eventually overcome the plant defense system to colonize the plants. The root-associated microbiota is assumed to be crucial for plant health, and belowground plant-microbe and microbe-microbe interactions can result in altered growth and nutritional quality of the aboveground plant parts. Such interactions affect community composition and productivity in natural ecosystems or crop yield in agricultural fields. Root associations with plant growth-promoting rhizobacteria (PGPR) producing phytohormones that alter root architecture, or produce antibiotics to suppress antagonistic pathogens, affecting nutrient availability and competition between plants are just a few among many examples of such belowground interactions in the rhizosphere. Moreover, the role of rhizosphere microorganisms in stimulating the plant immune system leading to Induced Systemic Resistance (ISR) has also been a focus of an active investigation. However, the molecular mechanisms are still largely unknown. On one hand, it has been proposed that plants actively recruit beneficial microorganisms under certain pathological conditions or influence the soil microbial communities and create a so-called “soil memory”, which is conveyed to future plant generations. On the other, the presence and interactions between microorganisms in the soil have a substantial impact on plant health.
Download or read book Methods in Yeast Genetics written by David C. Amberg and published by CSHL Press. This book was released on 2005 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Methods in Yeast Genetics" is a course that has been offered annually at Cold Spring Harbor for the last 30 years. This provides a set of teaching experiments along with the protocols and recipes for the standard techniques and reagents used in the study of yeast biology.
