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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.
Molecular Basis of Bacterial Pathogenesis focuses on the molecular mechanism of disease associated with bacterial pathogens. Topics covered include the population genetics of bacterial pathogenesis; environmental modulation of gene expression in gram-negative pathogens; and bacterial invasion and intracellular growth. Bacterial toxins are also discussed. This volume is comprised of 20 chapters and begins with an overview of pathogenesis, paying particular attention to common elements and genetic mechanisms of regulation. The discovery that many bacterial pathogens are clonal, with individual clones often having a greater virulence than others, is then considered. The next section deals with ...
The Bacteria, A Treatise on Structure and Function, Volume X: The Biology of Pseudomonas is generally an update of information already published about pseudomonas. This book contains information that has been discovered since the release of "Genetics and Biochemistry of Pseudomonas. Divided into three parts, the book starts with the foundation, which is the biology of the pseudomonas. The next part deals about the genetics, while the last part tackles the biochemistry of pseudomonas. The first section of this book covers topics including the modern review of the taxonomy of pseudomonas. Other sections include chapters on the important medical applications of features of these bacteria. Chapters on the virulence factors, membrane transport, and plasmids are also presented in this book. The second section of this book deals with genetics and topics including cloning and regulation of transcription. The metabolic versatility is given recognition in the third section of this book. Moreover, this section thoroughly discusses amino acid metabolism, cytochrome, and hydrocarbon catabolism.
The circulatory system is usually considered to be composed of tubes of various diameters, characterized by collateral and terminal branches. There is also a tendency to treat blood vessels merely as conducting tubes in which the various structures of the wall act as mechanical pumps wlrich modify their diameter. This is, of course, not so. In fact, we know that blood vessels, and in particular arteries, are organs with personalities of their own and a particular susceptibility to several diseases. In addition, blood vessels differ in structure, according to their localization, and age at differing rates. The experimental work car ried out so far clearly confirms the data that have come from...
Biofilms are predominant mode of life for microbes under natural conditions. The three-dimensional structure of the biofilm provides enhanced protection from physical, chemical and biological stress conditions to associated microbial communities. These complex and highly structured microbial communities play a vital role in maintaining the health of plants, soils and waters. Biofilm associated with plants may be pathogenic or beneficial based on the nature of their interactions. Pathogenic or undesirable biofilm requires control in many situations, including soil, plants, food and water. Written by leading experts from around the world, Biofilms in Plant and Soil Health provides an up-to-dat...
In the 1880s, bacteriology started to become an identifiable discipline of science as it separated from established fields of medicine such as pathology, histology and microscopy. It was during this period that Philadelphia medical students traveled to Europe to learn more about this new specialty and brought this knowledge back to the city. This first generation of bacteriologists established crude laboratories, and encouraged lectures in bacteriology to be included in the medical school curriculum. The first part of this book focuses on the people and institutions that played a significant role in establishing bacteriology in Philadelphia. A second generation of bacteriologists contributed...
The ability to form biofilms is a universal attribute of bacteria. Bacteria are able to grow on almost every surface, forming these architecturally complex communities. In biofilms, the cells grow in multicellular aggregates, encased in an extracellular matrix produced by the bacteria themselves. They impact humans in many ways, and can form in natural, medical and industrial settings. For example, the formation of biofilms on medical devices such as catheters or implants often results in difficult-to-treat chronic infections. This book focuses on emerging concepts in bacterial biofilm research, such as the different mechanisms of biofilm formation in Gram negative and Gram positive bacteria, and the burden of biofilm associated infections. It also highlights the various anti-biofilm strategies that can be translated to curb biofilm-associated infections and the escalation of antimicrobial resistance determinants.