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Microbial Communication
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Book Synopsis Microbial Communication by : Sarangam Majumdar
Download or read book Microbial Communication written by Sarangam Majumdar and published by Springer Nature. This book was released on 2020-09-15 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the concept of bacterial communication systems from a mathematical modeling point of view. It sheds light on the research undertaken in the last three decades, and the mathematical models that have been proposed to understand the underlying mechanism of such systems. These communication systems are related to quorum sensing mechanisms and quorum sensing regulated processes such as biofilm formation, gene expression, bioluminescence, swarming and virulence. The book further describes the phenomenon of noise, and discusses how noise plays a crucial role in gene expression and the quorum sensing circuit operationusing a set of tools like frequency domain analysis, power spectral density, stochastic simulation and the whitening effect. It also explores various aspects of synthetic biology (related to bacterial communication), such as genetic toggle switch, bistable gene regulatory networks, transcriptional repressor systems, pattern formation, synthetic cooperation, predator-prey synthetic systems, dynamical quorum sensing, synchronized quorum of genetic clocks, role of noise in synthetic biology, the Turing test and stochastic Turing test.
Book Synopsis Bacterial Cell-to-Cell Communication by : Donald R. Demuth
Download or read book Bacterial Cell-to-Cell Communication written by Donald R. Demuth and published by Cambridge University Press. This book was released on 2006-02-23 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many bacterial diseases are caused by organisms growing together as communities or biofilms. These microorganisms have the capacity to coordinately regulate specific sets of genes by sensing and communicating amongst themselves utilizing a variety of signals. This book examines the mechanisms of quorum sensing and cell-to-cell communication in bacteria and the roles that these processes play in regulating virulence, bacterial interactions with host tissues, and microbial development. Recent studies suggest that microbial cell-to-cell communication plays an important role in the pathogenesis of a variety of disease processes. Furthermore, some bacterial signal molecules may possess immunomodulatory activity. Thus, understanding the mechanisms and outcomes of bacterial cell-to-cell communication has important implications for appreciating host-pathogen interactions and ultimately may provide new targets for antimicrobial therapies that block or interfere with these communication networks.
Book Synopsis Biocommunication in Soil Microorganisms by : Günther Witzany
Download or read book Biocommunication in Soil Microorganisms written by Günther Witzany and published by Springer Science & Business Media. This book was released on 2010-11-01 with total page 483 pages. Available in PDF, EPUB and Kindle. Book excerpt: Communication is defined as an interaction between at least two living agents which share a repertoire of signs. These are combined according to syntactic, semantic and context-dependent, pragmatic rules in order to coordinate behavior. This volume deals with the important roles of soil bacteria in parasitic and symbiotic interactions with viruses, plants, animals and fungi. Starting with a general overview of the key levels of communication between bacteria, further reviews examine the various aspects of intracellular as well as intercellular biocommunication between soil microorganisms. This includes the various levels of biocommunication between phages and bacteria, between soil algae and bacteria, and between bacteria, fungi and plants in the rhizosphere, the role of plasmids and transposons, horizontal gene transfer, quorum sensing and quorum quenching, bacterial-host cohabitation, phage-mediated genetic exchange and soil viral ecology.
Author :Society for General Microbiology. Symposium Publisher :Cambridge University Press ISBN 13 :9780521652612 Total Pages :386 pages Book Rating :4.6/5 (526 download)
Book Synopsis Microbial Signalling and Communication by : Society for General Microbiology. Symposium
Download or read book Microbial Signalling and Communication written by Society for General Microbiology. Symposium and published by Cambridge University Press. This book was released on 1999-05-06 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents information at the forefront of this exciting field and includes contributions on a range of organisms and signalling molecules.
Book Synopsis Bacterial Communication in Foods by : Marco Gobbetti
Download or read book Bacterial Communication in Foods written by Marco Gobbetti and published by Springer Science & Business Media. This book was released on 2012-11-15 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is generally assumed that microorganisms synthesize, release, detect and respond to small signaling hormone-like molecules. These molecules are used for a process termed “quorum sensing” (QS), a phenomenon that enables bacteria to sense when the minimal number of cells, or “quorum,” is achieved for a concerted response to be initiated. Words such as “language” and “behavior” are frequently used to depict QS in the literature. More simply put, language and cross-talk between bacteria, and between bacteria and animal or plant hosts, determines the behavior (e.g., beneficial or pathogenic effects) of bacteria. Currently, the major concern is to understand and decode this language. Overall, bacterial cross-talk was mainly studied on environmental, plant, and human pathogenic bacteria. Few studies considered food-related lactic acid bacteria. The cross-talk between bacteria influences the behavior and, in turn, the environmental adaptation and phenotypes. Therefore, it is understood that bacterial cross-talk has important applicative repercussions. The language spoken between bacteria populating the same food ecosystem may condition the phenotypic traits of starter lactic acid bacteria and, consequently, their performance. This Brief aims to define the basis of cell-to-cell signalling in food fermentation and will highlight: (i) microbiology, nutritional, chemical and functional aspects; (ii) functional properties due to microbial adaptation to the gastrointestinal tract; (iii) principal phenotypes under control of QS circuitries; (iv) quorum quenching. This Brief will be the first reference on this topic and it will highlight the main results for a more productive industrial application. Draft content 1. Signals of food related Gram-negative and Gram-positive bacteria The chapter will describe the different signaling languages used by Gram-negative bacteria (N-acyl-L-homoserine lactones) and Gram-positive bacteria (based on the synthesis of post-translationally modified peptides) and the universal chemical lexicon, shared by both Gram-positive and -negative bacteria (autoinducer-2 through the activity of the LuxS enzyme). 2. Phenotypes related to quorum sensing The chapter will describe the bacterial phenotypes, such as virulence, biofilm maturation, bacteriocin synthesis, and secondary metabolite production under control of QS circuitries. 3. Cell-to-cell signalling in fermented food: sourdough The chapter will describe the language spoken between bacteria populating the same food ecosystem (sourdough) and will provide an overview of the conditioned phenotypic traits of starter lactic acid bacteria and, consequently, their performance. 4. Cell-to-cell signalling in fermented food: yoghurt The chapter will describe the language spoken between bacteria populating the same food ecosystem (yoghurt) and will provide an overview of the conditioned phenotypic traits of starter lactic acid bacteria and, consequently, their performance. 5. Probiotic message at the intra-, inter-species and inter-kingdom level The chapter will describe the mechanisms that regulate the interaction between microorganism and host, and the capacity of the microorganism to adapt to environment. Particular reference will also be made to: (i) pathogen inhibition and restoration of microbial homeostasis through microbe-microbe interactions; (ii) enhancement of epithelial barrier function; and (iii) modulation of immune responses. 6. New Perspectives of quorum sensing This chapter will provide an overview of the future perspective regarding quorum sensing, showing that bacterial cross-talk may have important applicative repercussions. It will highlight the interference on the language of QS, which is defined as quorum quenching (QQ). Increasing translation of the bacterial cross-talk has shown that in some environmental circumstances, quenching of the language may occur.
Book Synopsis The Social Biology of Microbial Communities by : Institute of Medicine
Download or read book The Social Biology of Microbial Communities written by Institute of Medicine and published by National Academies Press. This book was released on 2013-01-10 with total page 633 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beginning with the germ theory of disease in the 19th century and extending through most of the 20th century, microbes were believed to live their lives as solitary, unicellular, disease-causing organisms . This perception stemmed from the focus of most investigators on organisms that could be grown in the laboratory as cellular monocultures, often dispersed in liquid, and under ambient conditions of temperature, lighting, and humidity. Most such inquiries were designed to identify microbial pathogens by satisfying Koch's postulates.3 This pathogen-centric approach to the study of microorganisms produced a metaphorical "war" against these microbial invaders waged with antibiotic therapies, while simultaneously obscuring the dynamic relationships that exist among and between host organisms and their associated microorganisms-only a tiny fraction of which act as pathogens. Despite their obvious importance, very little is actually known about the processes and factors that influence the assembly, function, and stability of microbial communities. Gaining this knowledge will require a seismic shift away from the study of individual microbes in isolation to inquiries into the nature of diverse and often complex microbial communities, the forces that shape them, and their relationships with other communities and organisms, including their multicellular hosts. On March 6 and 7, 2012, the Institute of Medicine's (IOM's) Forum on Microbial Threats hosted a public workshop to explore the emerging science of the "social biology" of microbial communities. Workshop presentations and discussions embraced a wide spectrum of topics, experimental systems, and theoretical perspectives representative of the current, multifaceted exploration of the microbial frontier. Participants discussed ecological, evolutionary, and genetic factors contributing to the assembly, function, and stability of microbial communities; how microbial communities adapt and respond to environmental stimuli; theoretical and experimental approaches to advance this nascent field; and potential applications of knowledge gained from the study of microbial communities for the improvement of human, animal, plant, and ecosystem health and toward a deeper understanding of microbial diversity and evolution. The Social Biology of Microbial Communities: Workshop Summary further explains the happenings of the workshop.
Book Synopsis The Physical Basis of Bacterial Quorum Communication by : Stephen J. Hagen
Download or read book The Physical Basis of Bacterial Quorum Communication written by Stephen J. Hagen and published by Springer. This book was released on 2014-09-29 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quorum sensing (QS) describes a chemical communication behavior that is nearly universal among bacteria. Individual cells release a diffusible small molecule (an autoinducer) into their environment. A high concentration of this autoinducer serves as a signal of high population density, triggering new patterns of gene expression throughout the population. However QS is often much more complex than this simple census-taking behavior. Many QS bacteria produce and detect multiple autoinducers, which generate quorum signal cross talk with each other and with other bacterial species. QS gene regulatory networks respond to a range of physiological and environmental inputs in addition to autoinducer signals. While a host of individual QS systems have been characterized in great molecular and chemical detail, quorum communication raises many fundamental quantitative problems which are increasingly attracting the attention of physical scientists and mathematicians. Key questions include: What kinds of information can a bacterium gather about its environment through QS? What physical principles ultimately constrain the efficacy of diffusion-based communication? How do QS regulatory networks maximize information throughput while minimizing undesirable noise and cross talk? How does QS function in complex, spatially structured environments such as biofilms? Previous books and reviews have focused on the microbiology and biochemistry of QS. With contributions by leading scientists and mathematicians working in the field of physical biology, this volume examines the interplay of diffusion and signaling, collective and coupled dynamics of gene regulation, and spatiotemporal QS phenomena. Chapters will describe experimental studies of QS in natural and engineered or microfabricated bacterial environments, as well as modeling of QS on length scales spanning from the molecular to macroscopic. The book aims to educate physical scientists and quantitative-oriented biologists on the application of physics-based experiment and analysis, together with appropriate modeling, in the understanding and interpretation of the pervasive phenomenon of microbial quorum communication.
Book Synopsis Microbial Communication and Microbiota-host Interactivity by : Alexander V. Oleskin
Download or read book Microbial Communication and Microbiota-host Interactivity written by Alexander V. Oleskin and published by . This book was released on 2020 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In light of recent data, microorganisms are construed in the present monograph as living organisms that are capable of communication and advanced social organization, which conspicuously manifests itself in the formation of extracellular matrix-enclosed biofilms. Microbial communication signals, including quorum sensing pheromones, are of paramount importance both for interactions among microbial cells and the dialogue between them and the host organism. The monograph sums up the facts that demonstrate the complexity of the human organism-inhabiting microbial consortium comprising a wide variety of biofilm-forming eukaryotic, bacterial and archean cells. The microbiota is involved in maintaining microecological, metabolic, epigenetic, neuro-endocrine and immune homeostasis that normally stabilizes the brain-gut-microbiota axis. Microbially produced neuroactive chemicals include peptides, amino acids, amines, short-chain fatty acids, purines and gaseous substances that are used as nutrients, effectors, cofactors and signals by the host organism. In the present-day world, the human organism has to deal with a large number of environmental stress factors that overpower the organism's protective system and disrupt the functioning of symbiotic microbiota predominantly located in the gastro-intestinal (GI) tract. Homeostasis disruption may impede communication between microbial cells and the human organism and cause physical or mental health problems. The operation of the brain-gut-microbiota axis can be improved by useful microorganisms (probiotics) including psychobiotics that directly impact the human brain and behavior. In the authors' opinion, the lifelong epigenetic developmental program of the organism can be ameliorated and genetic and epigenetic disruptions in the human metagenome (comprising all nuclear, mitochondrial and microbial genes) can be prevented by supplementing the diet with traditional, organic and individualized functional food items that relieve the effects of various detrimental stress factors and agents. A reasonably designed lifestyle based on gut microbiota optimization will undoubtedly help human individuals live a decent healthy life and attain active longevity. Current research on the population organization, social behavior and intercellular communication of microorganisms is expected to promote the interdisciplinary dialogue between microbiology, cytology and ethology. In addition, the results of this research are of significant potential importance for medicine and biotechnology"--
Book Synopsis Microbial Communication and Microbiota-host Interactivity by : Alexander V. Oleskin
Download or read book Microbial Communication and Microbiota-host Interactivity written by Alexander V. Oleskin and published by Nova Science Publishers. This book was released on 2020 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In light of recent data, microorganisms are construed in the present monograph as living organisms that are capable of communication and advanced social organization, which conspicuously manifests itself in the formation of extracellular matrix-enclosed biofilms. Microbial communication signals, including quorum sensing pheromones, are of paramount importance both for interactions among microbial cells and the dialogue between them and the host organism. The monograph sums up the facts that demonstrate the complexity of the human organism-inhabiting microbial consortium comprising a wide variety of biofilm-forming eukaryotic, bacterial and archean cells. The microbiota is involved in maintaining microecological, metabolic, epigenetic, neuro-endocrine and immune homeostasis that normally stabilizes the brain-gut-microbiota axis. Microbially produced neuroactive chemicals include peptides, amino acids, amines, short-chain fatty acids, purines and gaseous substances that are used as nutrients, effectors, cofactors and signals by the host organism. In the present-day world, the human organism has to deal with a large number of environmental stress factors that overpower the organism's protective system and disrupt the functioning of symbiotic microbiota predominantly located in the gastro-intestinal (GI) tract. Homeostasis disruption may impede communication between microbial cells and the human organism and cause physical or mental health problems. The operation of the brain-gut-microbiota axis can be improved by useful microorganisms (probiotics) including psychobiotics that directly impact the human brain and behavior. In the authors' opinion, the lifelong epigenetic developmental program of the organism can be ameliorated and genetic and epigenetic disruptions in the human metagenome (comprising all nuclear, mitochondrial and microbial genes) can be prevented by supplementing the diet with traditional, organic and individualized functional food items that relieve the effects of various detrimental stress factors and agents. A reasonably designed lifestyle based on gut microbiota optimization will undoubtedly help human individuals live a decent healthy life and attain active longevity. Current research on the population organization, social behavior and intercellular communication of microorganisms is expected to promote the interdisciplinary dialogue between microbiology, cytology and ethology. In addition, the results of this research are of significant potential importance for medicine and biotechnology"--
Book Synopsis Microbial Extracellular Polymeric Substances by : Jost Wingender
Download or read book Microbial Extracellular Polymeric Substances written by Jost Wingender and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbial extracellular polymeric substances (EPS) are the key components for the aggregation of microorganisms in biofilms, flocs and sludge. They are composed of polysaccharides, proteins, nucleic acids, lipids and other biological macromolecules. EPS provide a highly hydrated gel matrix in which microbial cells can establish stable synergistic consortia. Cohesion and adhesion as well as morphology, structure, biological function and other properties such as mechanical stability, diffusion, sorption and optical properties of microbial aggregates are determined by the EPS matrix. Also, the protection of biofilm organisms against biocides is attributed to the EPS. Their matrix allows phase separation in biofiltration and is also important for the degradation of particulate material which is of great importance for the self purification processes in surface waters and for waste water treatment.
Book Synopsis Environmental Microbiology by : Ian Pepper
Download or read book Environmental Microbiology written by Ian Pepper and published by Academic Press. This book was released on 2011-10-13 with total page 621 pages. Available in PDF, EPUB and Kindle. Book excerpt: For microbiology and environmental microbiology courses, this leading textbook builds on the academic success of the previous edition by including a comprehensive and up-to-date discussion of environmental microbiology as a discipline that has grown in scope and interest in recent years. From environmental science and microbial ecology to topics in molecular genetics, this edition relates environmental microbiology to the work of a variety of life science, ecology, and environmental science investigators. The authors and editors have taken the care to highlight links between environmental microbiology and topics important to our changing world such as bioterrorism and national security with sections on practical issues such as bioremediation, waterborne pathogens, microbial risk assessment, and environmental biotechnology. WHY ADOPT THIS EDITION? New chapters on: Urban Environmental Microbiology Bacterial Communities in Natural Ecosystems Global Change and Microbial Infectious Disease Microorganisms and Bioterrorism Extreme Environments (emphasizing the ecology of these environments) Aquatic Environments (now devoted to its own chapter- was combined with Extreme Environments) Updates to Methodologies: Nucleic Acid -Based Methods: microarrays, phyloarrays, real-time PCR, metagomics, and comparative genomics Physiological Methods: stable isotope fingerprinting and functional genomics and proteomics-based approaches Microscopic Techniques: FISH (fluorescent in situ hybridization) and atomic force microscopy Cultural Methods: new approaches to enhanced cultivation of environmental bacteria Environmental Sample Collection and Processing: added section on air sampling
Book Synopsis Chemical Communication Among Bacteria by : Stephen Carlyle Winans
Download or read book Chemical Communication Among Bacteria written by Stephen Carlyle Winans and published by . This book was released on 2008 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summarizes the science and recent research developments of chemical communication among bacteria
Book Synopsis Bacterial Cell-to-Cell Communication by : Donald R. Demuth
Download or read book Bacterial Cell-to-Cell Communication written by Donald R. Demuth and published by Cambridge University Press. This book was released on 2006-02-23 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many bacterial diseases are caused by organisms growing together as communities or biofilms. These microorganisms have the capacity to coordinately regulate specific sets of genes by sensing and communicating amongst themselves utilizing a variety of signals. This book examines the mechanisms of quorum sensing and cell-to-cell communication in bacteria and the roles that these processes play in regulating virulence, bacterial interactions with host tissues, and microbial development. Recent studies suggest that microbial cell-to-cell communication plays an important role in the pathogenesis of a variety of disease processes.
Book Synopsis Microbial Endocrinology by : Mark Lyte
Download or read book Microbial Endocrinology written by Mark Lyte and published by Springer Science & Business Media. This book was released on 2010-04-06 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbial endocrinology represents a newly emerging interdisciplinary field that is formed by the intersection of the fields of neurobiology and microbiology. This book will introduce a new perspective to the current understanding not only of the factors that mediate the ability of microbes to cause disease, but also to the mechanisms that maintain normal homeostasis. The discovery that microbes can directly respond to neuroendocrine hormones, as evidenced by increased growth and production of virulence-associated factors, provides for a new framework with which to investigate how microorganisms interface not only with vertebrates, but also with invertebrates and even plants. The reader will learn that the neuroendocrine hormones that one most commonly associates with mammals are actually found throughout the plant, insect and microbial communities to an extent that will undoubtedly surprise many, and most importantly, how interactions between microbes and neuroendocrine hormones can influence the pathophysiology of infectious disease.
Book Synopsis Microbial Energy Conversion by : Zhenhong Yuan
Download or read book Microbial Energy Conversion written by Zhenhong Yuan and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-05-22 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides an overview on various microorganisms and their industrialization in energy conversion, such as ethanol fermentation, butanol fermentation, biogas fermentation and fossil energy conversion. It also covers microbial oil production, hydrogen production and electricity generation. The content is up to date and suits well for both researchers and industrial audiences.
Book Synopsis Quorum Sensing by : Saurabh Sudha Dhiman
Download or read book Quorum Sensing written by Saurabh Sudha Dhiman and published by . This book was released on 2021 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: New developments in researching quorum sensing Microbial growth affects industries as diverse as agriculture, engineering, and medicine, to name a few. As more precise solutions are needed for modern challenges, researchers must understand the mechanisms of microbial growth. Quorum sensing (QS) is an essential part of microbial growth, and this work contains key areas such as signal molecules; mechanisms of signal transfer, role, and type of signal receptors; quorum quenching; characterization of microbial plasmids in quorum sensing; and novel and underexplored molecules involved in QS, along with therapeutic roles of quorum sensing inhibitors. This volume is perfect for researchers working on microbiology or biotechnology.
Book Synopsis Quorum Sensing vs Quorum Quenching: A Battle with No End in Sight by : Vipin Chandra Kalia
Download or read book Quorum Sensing vs Quorum Quenching: A Battle with No End in Sight written by Vipin Chandra Kalia and published by Springer. This book was released on 2016-08-23 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbial relationships with all life forms can be as free living, symbiotic or pathogenic. Human beings harbor 10 times more microbial cells than their own. Bacteria are found on the skin surface, in the gut and other body parts. Bacteria causing diseases are the most worrisome. Most of the infectious diseases are caused by bacterial pathogens with an ability to form biofilm. Bacteria within the biofilm are up to 1000 times more resistant to antibiotics. This has taken a more serious turn with the evolution of multiple drug resistant bacteria. Health Departments are making efforts to reduce high mortality and morbidity in man caused by them. Bacterial Quorum sensing (QS), a cell density dependent phenomenon is responsible for a wide range of expressions such as pathogenesis, biofilm formation, competence, sporulation, nitrogen fixation, etc. Majority of these organisms that are important for medical, agriculture, aquaculture, water treatment and remediation, archaeological departments are: Aeromonas, Acinetobacter, Bacillus, Clostridia, Enterococcus, Pseudomonas, Vibrio and Yersinia spp. Biosensors and models have been developed to detect QS systems. Strategies for inhibiting QS system through natural and synthetic compounds have been presented here. The biotechnological applications of QS inhibitors (QSIs) in diverse areas have also been dealt with. Although QSIs do not affect growth and are less likely to impose selective pressure on bacteria, however, a few reports have raised doubts on the fate of QSIs. This book addresses a few questions. Will bacteria develop mechanisms to evade QSIs? Are we watching yet another defeat at the hands of bacteria? Or will we be acting intelligently and survive the onslaughts of this Never Ending battle?
