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Author : Evolution Protest Movement
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (81 download)
Download or read book Bacterium E. Coli V. Evolution written by Evolution Protest Movement and published by . This book was released on 1971 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael Donnenberg
Publisher : Elsevier
ISBN 13 : 0080494811
Total Pages : 453 pages
Book Rating : 4.0/5 (84 download)
Download or read book E. coli written by Michael Donnenberg and published by Elsevier. This book was released on 2002-10-09 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although most strains of E. coli bacteria are harmless and live in the intestines of healthy humans and animals, several strains can produce powerful toxins and cause severe illness in humans. This versatile pathogen is best known for being transmitted to humans through contaminated foods — such as undercooked meat and unpasteurized fruit juice — and has attracts much attention when serious outbreaks occur. E. coli is capable of causing a wide variety of diseases — from urinary tract infections to meningitis. A considerable amount of media coverage has recently been devoted to one particular strain of E. coli, responsible for an estimated 73,000 cases of infection and 61 deaths in the United States each year. Knowing more about the biology, the evolution, and the genetic basis of this pathogen is crucial to future prevention of infection and illness. Pathogenic E. coli is a unique, comprehensive analysis of the biology and molecular mechanisms that enable this ubiquitous organism to thrive. Leading investigators in the field discuss the molecular basis of E. coli pathogenesis followed by chapters on genomics and evolution. Detailed descriptions of distinct strains reveal the molecular pathogenesis of each and the causes of intestinal and extra-intestinal infections in humans. Pathogenic E. coli concludes with a presentation of virulance factors, common to two or more pathotypes. This unique collection presents timely and vital information on understanding the inner workings of E. coli, which will lend key insights into disease prevention research. Single source of information of E. coli pathogenesis Expert authors Comprehensive coverage Molecular mechanisms Biology, evolution and genomics Recent advances
Author : Carl Zimmer
Publisher : Random House
ISBN 13 : 1446455033
Total Pages : 258 pages
Book Rating : 4.4/5 (464 download)
Download or read book Microcosm written by Carl Zimmer and published by Random House. This book was released on 2012-12-31 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1946, a twenty-year-old medical school student called Joshua Lederberg decided to find out whether microbes make love. Lederberg was motivated not by a displaced libido, but by scientific ambition. At the age of seven, he had declared that he hoped to become 'like Einstein' and to 'discover a few things in science.' The 'few things' Lederberg discovered would revolutionise modern science and earn him a Nobel Prize. He chose to observe the breeding habits of a certain bacterium called Escherichia coli, better known as E coli. His experiments used defective E coli strains lacking the essential molecules to reproduce by cloning which should, by rights, perish in the petri dish. But slowly, a few colonies of survivors began to spread accross the dishes. The only possible explanation for their survival was that they were a product of sex. Not only had Lederberg proved that bacteria have sex, he had also proved they have genes. Since then, a bacterium that was once nothing more than a humble resident of the human gut has become our best guide to what it means to be alive. Most of us might only know E coli for its lethal strain that causes food poisoning, but Zimmer uses E coli as a prism to understand what life is, what it was, and what it will become. We learn how E coli microbes talk to each other, how studies of their evolution represent the most powerful evidence in support of natural selection, and how they might just explain life on other planets...
Author : Sujay Chattopadhyay
Publisher : Elsevier Inc. Chapters
ISBN 13 : 0128061774
Total Pages : 43 pages
Book Rating : 4.1/5 (28 download)
Download or read book Escherichia coli written by Sujay Chattopadhyay and published by Elsevier Inc. Chapters. This book was released on 2013-06-12 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: Why do bacteria cause disease in humans? Is disease adaptive for the pathogen or just a biological accident? And if disease is adaptive, how does it influence the long-term or short-term fitness for the pathogen and how is it sustained in nature? In this chapter we try to address these questions by dissecting the molecular mechanisms of both pathogenicity and evolution of Escherichia coli, one of the most notorious and versatile human pathogens, which is also one of the most common human commensal bacteria. We examine how and, more importantly, why horizontally transferred virulence factors and pathoadaptive mutations are acquired by and sustained by certain E. coli lineages. The evolution of pathogenicity is thus reviewed from the perspective of E. coli ecology, with the discussion of various models of virulence evolution in general and some of its paradoxes. We hope to shed light from the evolutionary perspective on how professional, accidental, or opportunistic pathogens might be defined.
Author : Elizabeth L. Hartland
Publisher : Frontiers E-books
ISBN 13 : 2889191532
Total Pages : 94 pages
Book Rating : 4.8/5 (891 download)
Download or read book Enteropathogenic and enterohemorrhagic E. coli: ecology, pathogenesis and evolution written by Elizabeth L. Hartland and published by Frontiers E-books. This book was released on with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Enteropathogenic and enterohemorrhagic E. coli are important causes of gastrointestinal disease worldwide. As part of their pathogenesis, EPEC and EHEC cause a distinctive lesion on the intestinal mucosa known as an attaching and effacing (A/E) lesion. A/E lesion formation requires a type III secretion system that injects multiple effector proteins into the cell. Despite their shared mechanism of intestinal colonization, EPEC and EHEC exhibit substantial differences in epidemiology and clinical disease. In particular, EHEC produces a potent Shiga toxin that is associated with development of the haemolytic uremic syndrome (HUS), an acute form of renal failure. This Research Topic will examine interactions between attaching and effacing bacteria and the host cell, and discuss EPEC/EPEC ecology, genomics and animal models of disease. Articles will centre on pathogen evolution, novel adhesins, type III effector biology and bacterium-host responses during infection.
Author : Jorge Luis Romero Becerra
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (115 download)
Download or read book Bacterial Evolution Under Optimal Conditions written by Jorge Luis Romero Becerra and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a new device for long-term continuous culture of bacteria that impede biofilm formation. We built an automated turbidostat that maintains a constant population size, using rotating Petri dishes and an UV light that kills bacteria attached to the plateþs surface. The device uses an automated fluidic system for bacterial concentration control and an optical system to follow bacterial growth rate in real time. We developed This system constitutes a novel method in the context of experimental evolution with microbes for the implementation of long term evolutionary experiments with bacteria in a constant environment and fixed population size. Here, we replicate the Lenski experiments up to 2000 generations and compare the fitness dynamics of four replicates evolving at two different population sizes with their results. We could closely replicate their results on the effect of the number of generations over fitness enhancement in the model bacteria E. coli.
Author : Troy Sandberg
Publisher :
ISBN 13 :
Total Pages : 163 pages
Book Rating : 4.:/5 (17 download)
Download or read book Exploring the Adaptive Capabilities of Escherichia Coli written by Troy Sandberg and published by . This book was released on 2018 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evolution underlies the entirety of Earth's biodiversity, as all species diverged from the last universal common ancestor billions of years ago. Although able to effect incredible changes over long periods, the need for multiple generations of mutation and competition renders evolution nearly imperceptible, at the timescale of human observation, for all but the most quickly reproducing organisms. Thus microbial adaptation, given microbes' rapid generation time and enormous population sizes, is perhaps most pressing to understand. This unavoidable evolutionary process facilitates the rise and spread of antibiotic resistance, and frequently countervails attempts to genetically engineer organisms for human purposes. The bacterium Escherichia coli, easily the most highly studied microbe to date, is an ideal model by which to investigate evolution. With both clinical and biotechnological relevance, a thorough understanding of the adaptive principles governing E. coli evolution is of great importance. In this dissertation I seek to probe the adaptive capabilities of E. coli using custom robotics systems that function as 'evolution machines.' Enabled by this automation, adaptive walks along the fitness landscape can be tracked in real-time with experimental throughput, data quality, and environmental control impossible to replicate manually. I subject E. coli to stressful perturbations and analyze the mechanisms by which it evolves to restore robust growth, using data types such as phenotypic characterization, whole genome sequencing, and transcriptomics. I demonstrate the remarkable adaptive flexibility of E. coli as it readily evolves to tolerate elevated temperatures, altered isotopic composition, rapidly fluctuating growth environments, and even replacement of important native genes with foreign DNA. Overall, these studies establish condition-specific evolutionary responses, general mechanisms for growth rate improvement, and guiding principles for the successful use of laboratory evolution experiments as a tool for biological discovery and engineering.
Author : Theodore Garland
Publisher : Univ of California Press
ISBN 13 : 0520261801
Total Pages : 752 pages
Book Rating : 4.5/5 (22 download)
Download or read book Experimental Evolution written by Theodore Garland and published by Univ of California Press. This book was released on 2009-12-03 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume summarizes studies in experimental evolution, outlining current techniques and applications, and presenting the field's range of research.
Author :
Publisher : Academic Press
ISBN 13 : 0124159761
Total Pages : 719 pages
Book Rating : 4.1/5 (241 download)
Download or read book Microbiology of Waterborne Diseases written by and published by Academic Press. This book was released on 2013-11-08 with total page 719 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of Microbiology of Waterborne Diseases describes the diseases associated with water, their causative agents and the ways in which they gain access to water systems. The book is divided into sections covering bacteria, protozoa, and viruses. Other sections detail methods for detecting and identifying waterborne microorganisms, and the ways in which they are removed from water, including chlorine, ozone, and ultraviolet disinfection. The second edition of this handbook has been updated with information on biofilms and antimicrobial resistance. The impact of global warming and climate change phenomena on waterborne illnesses are also discussed. This book serves as an indispensable reference for public health microbiologists, water utility scientists, research water pollution microbiologists environmental health officers, consultants in communicable disease control and microbial water pollution students. Focuses on the microorganisms of most significance to public health, including E. coli, cryptosporidium, and enterovirus Highlights the basic microbiology, clinical features, survival in the environment, and gives a risk assessment for each pathogen Contains new material on antimicrobial resistance and biofilms Covers drinking water and both marine and freshwater recreational bathing waters
Author : Pina M. Fratamico
Publisher :
ISBN 13 : 9781910190784
Total Pages : 258 pages
Book Rating : 4.1/5 (97 download)
Download or read book Pathogenic Escherichia Coli written by Pina M. Fratamico and published by . This book was released on 2018-04 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Escherichia coli is an important member of the normal healthy microbiome of humans and other mammals. In addition, some strains are thought to be probiotic, and therefore beneficial to the host. However, other strains of E. coli have evolved into highly versatile, and frequently deadly, pathogens, the resultant diseases causing significant economic loss and public health burdens worldwide. Recent studies have shown that the E. coli genome has a high plasticity allowing it to adapt to new niches and survive in stressful conditions and to evolve into new hybrid strains with shared genes, including virulence genes. Omics and whole genome sequencing approaches have transformed research in this field allowing fascinating new insights into the molecular and cellular biology of the bacterium thus paving the way for the development of novel therapeutic strategies. Under the expert guidance of the editors in this book, renowned international authors provide timely and up-to-date reviews of current cutting-edge E. coli omics, molecular- and cellular-biology research. Topics range from E. coli genome plasticity and evolution to the application of omics technologies for in silico modeling to understand stress-triggered physiological responses. This authoritative volume is essential reading for scientists, both experts and students, working on pathogenic E. coli in academia, government, and biotechnology companies. It is also a must-read for anyone with an interest in bacterial pathogenesis and an important acquisition for all microbiology libraries.
Author : Howard Ochman
Publisher :
ISBN 13 : 9781621820376
Total Pages : 0 pages
Book Rating : 4.8/5 (23 download)
Download or read book Microbial Evolution written by Howard Ochman and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bacteria have been the dominant forms of life on Earth for the past 3.5 billion years. They rapidly evolve, constantly changing their genetic architecture through horizontal DNA transfer and other mechanisms. Consequently, it can be difficult to define individual species and determine how they are related. Written and edited by experts in the field, this collection from Cold Spring Harbor Perspectives in Biology examines how bacteria and other microbes evolve, focusing on insights from genomics-based studies. Contributors discuss the origins of new microbial populations, the evolutionary and ecological mechanisms that keep species separate once they have diverged, and the challenges of constructing phylogenetic trees that accurately reflect their relationships. They describe the organization of microbial genomes, the various mutations that occur, including the birth of new genes de novo and by duplication, and how natural selection acts on those changes. The role of horizontal gene transfer as a strong driver of microbial evolution is emphasized throughout. The authors also explore the geologic evidence for early microbial evolution and describe the use of microbial evolution experiments to examine phenomena like natural selection. This volume will thus be essential reading for all microbial ecologists, population geneticists, and evolutionary biologists.
Author : Alain Filloux
Publisher : Caister Academic Press Limited
ISBN 13 : 9781908230034
Total Pages : 0 pages
Book Rating : 4.2/5 (3 download)
Download or read book Bacterial Regulatory Networks written by Alain Filloux and published by Caister Academic Press Limited. This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Regulatory networks enable bacteria to adapt to almost every environmental niche on earth. Regulation is achieved by a network of interactions among diverse types of molecules including DNA, RNA, proteins and metabolites. The primary role of regulatory networks in bacteria is to control the response to environmental changes, such as nutritional status and environmental stress. A complex organization of networks allows the organism to coordinate and integrate multiple environmental signals. Renowned authors under the expert guidance of the editor Alain A.M. Filloux, have contributed authoritative, up-to-date reviews of the current research and theories on regulatory networks in bacteria. The volume contains critical reviews written by the leading research scientists in this topical field. The authors fully explore various regulatory networks, discuss variations of common themes and provide fresh insights into bacterial regulatory mechanisms. Topics include: the sigma network in Escherichia coli, control of bacterial virulence, ECF sigma factors, quorum sensing, cyclic di-GMP, RNA-mediated regulation, the H-NS regulator, two-component regulatory systems, bacterial chemotaxis, regulation of iron homeostasis, anaerobic regulatory networks, bacterial bistable regulatory networks, and evolution of transcription factors and regulatory networks. This book is essential reading for everyone interested in gene expression and regulation in bacteria and is a recommended text for all microbiology libraries.
Author : Rodney Mauricio
Publisher : Springer Science & Business Media
ISBN 13 : 1402038364
Total Pages : 207 pages
Book Rating : 4.4/5 (2 download)
Download or read book Genetics of Adaptation written by Rodney Mauricio and published by Springer Science & Business Media. This book was released on 2005-07-20 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: An enduring controversy in evolutionary biology is the genetic basis of adaptation. Darwin emphasized "many slight differences" as the ultimate source of variation to be acted upon by natural selection. In the early 1900’s, this view was opposed by "Mendelian geneticists", who emphasized the importance of "macromutations" in evolution. The Modern Synthesis resolved this controversy, concluding that mutations in genes of very small effect were responsible for adaptive evolution. A decade ago, Allen Orr and Jerry Coyne reexamined the evidence for this neo-Darwinian view and found that both the theoretical and empirical basis for it were weak. Orr and Coyne encouraged evolutionary biologists to reexamine this neglected question: what is the genetic basis of adaptive evolution? In this volume, a new generation of biologists have taken up this challenge. Using advances in both molecular genetic and statistical techniques, evolutionary geneticists have made considerable progress in this emerging field. In this volume, a diversity of examples from plant and animal studies provides valuable information for those interested in the genetics and evolution of complex traits.
Author : Paul Hyman
Publisher : CABI
ISBN 13 : 1845939840
Total Pages : 296 pages
Book Rating : 4.8/5 (459 download)
Download or read book Bacteriophages in Health and Disease written by Paul Hyman and published by CABI. This book was released on 2012 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bacteriophages are viruses that infect bacteria; as such, they have many potential uses for promoting health and combating disease. This book covers the many facets of phage-bacterial-human interaction in three sections: the role and impact of phages on natural bacterial communities, the potential to develop phage-based therapeutics and other aspects in which phages can be used to combat disease, including bacterial detection, bacterial epidemiology, the tracing of fecal contamination of water and decontamination of foods.
Author : Sang Yup Lee
Publisher : Springer Science & Business Media
ISBN 13 : 1402093942
Total Pages : 471 pages
Book Rating : 4.4/5 (2 download)
Download or read book Systems Biology and Biotechnology of Escherichia coli written by Sang Yup Lee and published by Springer Science & Business Media. This book was released on 2009-03-20 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: Systems biology is changing the way biological systems are studied by allowing us to examine the cell and organism as a whole. Systems biotechnology allows optimal design and development of upstream to downstream bioprocesses by taking a systems-approach. E. coli has been a model organism for almost all biological and biotechnological studies. This book brings together for the first time the state-of-the-art reviews by the world-leading experts on systems biology and biotechnological applications of E. coli. The topics covered include genomics and functional genomics, resources for systems biology, network analysis, genome-scale metabolic reconstruction, modelling and simulation, dynamic modelling and simulation, systems-level analysis of evolution, plasmids and expression systems, protein synthesis, production and export, engineering the central metabolism, synthetic biology, and systems metabolic engineering of E. coli. This book provides readers with guidance on how a complex biological system can be studied using E. coli as a model organism. It also presents how to perform synthetic biology and systems metabolic engineering studies on E. coli with successful examples, the approaches of which can be extended to other organisms. This book will be a complete resource for anyone interested in systems biology and biotechnology.
Author : Hervé Tettelin
Publisher : Springer Nature
ISBN 13 : 3030382818
Total Pages : 311 pages
Book Rating : 4.0/5 (33 download)
Download or read book The Pangenome written by Hervé Tettelin and published by Springer Nature. This book was released on 2020-04-30 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book offers the first comprehensive account of the pan-genome concept and its manifold implications. The realization that the genetic repertoire of a biological species always encompasses more than the genome of each individual is one of the earliest examples of big data in biology that opened biology to the unbounded. The study of genetic variation observed within a species challenges existing views and has profound consequences for our understanding of the fundamental mechanisms underpinning bacterial biology and evolution. The underlying rationale extends well beyond the initial prokaryotic focus to all kingdoms of life and evolves into similar concepts for metagenomes, phenomes and epigenomes. The book’s respective chapters address a range of topics, from the serendipitous emergence of the pan-genome concept and its impacts on the fields of microbiology, vaccinology and antimicrobial resistance, to the study of microbial communities, bioinformatic applications and mathematical models that tie in with complex systems and economic theory. Given its scope, the book will appeal to a broad readership interested in population dynamics, evolutionary biology and genomics.
Author : David R. Harper
Publisher : Springer Nature
ISBN 13 : 3319419862
Total Pages : 1376 pages
Book Rating : 4.3/5 (194 download)
Download or read book Bacteriophages written by David R. Harper and published by Springer Nature. This book was released on 2021-01-30 with total page 1376 pages. Available in PDF, EPUB and Kindle. Book excerpt: This first major reference work dedicated to the mannifold industrial and medical applications of bacteriophages provides both theoretical and practical insights into the emerging field of bacteriophage biotechnology. The book introduces to bacteriophage biology, ecology and history and reviews the latest technologies and tools in bacteriophage detection, strain optimization and nanotechnology. Usage of bacteriophages in food safety, agriculture, and different therapeutic areas is discussed in detail. This book serves as essential guide for researchers in applied microbiology, biotechnology and medicine coming from both academia and industry.
