Bacterial Cell-to-Cell Communication

Bacterial Cell-to-Cell Communication PDF Author: Donald R. Demuth
Publisher: Cambridge University Press
ISBN: 9780521846387
Category : Science
Languages : en
Pages : 330

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Book Description
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.

Bacterial Cell-to-Cell Communication

Bacterial Cell-to-Cell Communication PDF Author: Donald R. Demuth
Publisher: Cambridge University Press
ISBN: 9780521846387
Category : Science
Languages : en
Pages : 330

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Book Description
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.

Bacterial Signaling

Bacterial Signaling PDF Author: Reinhard Krämer
Publisher: John Wiley & Sons
ISBN: 3527629246
Category : Science
Languages : en
Pages : 513

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Book Description
Providing a comprehensive insight into cellular signaling processes in bacteria with a special focus on biotechnological implications, this is the first book to cover intercellular as well as intracellular signaling and its relevance for biofilm formation, host pathogen interactions, symbiotic relationships, and photo- and chemotaxis. In addition, it deals in detail with principal bacterial signaling mechanisms -- making this a valuable resource for all advanced students in microbiology. Dr. Krämer is a world-renowned expert in intracellular signaling and its implications for biotechnology processes, while Dr. Jung is an expert on intercellular signaling and its relevance for biomedicine and agriculture.

Molecular Biology of the Cell

Molecular Biology of the Cell PDF Author:
Publisher:
ISBN: 9780815332183
Category : Cells
Languages : en
Pages : 0

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Book Description


Biology for AP ® Courses

Biology for AP ® Courses PDF Author: Julianne Zedalis
Publisher:
ISBN: 9781947172401
Category : Biology
Languages : en
Pages : 1923

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Book Description
Biology for AP® courses covers the scope and sequence requirements of a typical two-semester Advanced Placement® biology course. The text provides comprehensive coverage of foundational research and core biology concepts through an evolutionary lens. Biology for AP® Courses was designed to meet and exceed the requirements of the College Board’s AP® Biology framework while allowing significant flexibility for instructors. Each section of the book includes an introduction based on the AP® curriculum and includes rich features that engage students in scientific practice and AP® test preparation; it also highlights careers and research opportunities in biological sciences.

Microbial Extracellular Polymeric Substances

Microbial Extracellular Polymeric Substances PDF Author: Jost Wingender
Publisher: Springer Science & Business Media
ISBN: 3642601472
Category : Science
Languages : en
Pages : 266

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Book Description
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.

Bacterial Biofilms

Bacterial Biofilms PDF Author: Tony Romeo
Publisher: Springer Science & Business Media
ISBN: 3540754180
Category : Medical
Languages : en
Pages : 302

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Book Description
Throughout the biological world, bacteria thrive predominantly in surface-attached, matrix-enclosed, multicellular communities or biofilms, as opposed to isolated planktonic cells. This choice of lifestyle is not trivial, as it involves major shifts in the use of genetic information and cellular energy, and has profound consequences for bacterial physiology and survival. Growth within a biofilm can thwart immune function and antibiotic therapy and thereby complicate the treatment of infectious diseases, especially chronic and foreign device-associated infections. Modern studies of many important biofilms have advanced well beyond the descriptive stage, and have begun to provide molecular details of the structural, biochemical, and genetic processes that drive biofilm formation and its dispersion. There is much diversity in the details of biofilm development among various species, but there are also commonalities. In most species, environmental and nutritional conditions greatly influence biofilm development. Similar kinds of adhesive molecules often promote biofilm formation in diverse species. Signaling and regulatory processes that drive biofilm development are often conserved, especially among related bacteria. Knowledge of such processes holds great promise for efforts to control biofilm growth and combat biofilm-associated infections. This volume focuses on the biology of biofilms that affect human disease, although it is by no means comprehensive. It opens with chapters that provide the reader with current perspectives on biofilm development, physiology, environmental, and regulatory effects, the role of quorum sensing, and resistance/phenotypic persistence to antimicrobial agents during biofilm growth.

Bacterial Disease Mechanisms

Bacterial Disease Mechanisms PDF Author: Michael Wilson
Publisher: Cambridge University Press
ISBN: 9780521796897
Category : Medical
Languages : en
Pages : 698

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Book Description
Introductory textbook describing the ways in which bacteria cause disease at the molecular and cellular level.

Cell Biology of Bacteria

Cell Biology of Bacteria PDF Author: Lucy Shapiro
Publisher:
ISBN: 9780879699079
Category : Bacteria
Languages : en
Pages : 0

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Book Description
Often thought to lack signifucant internal organization by comparison with eukaryotic cells, prokaryotes have in face been shown to possess distinct intracellular compartments. The book covers all aspects of prokaryotic cell biology, including the bacterial cytoskeleton, membrance organization, chromosome dynamics, nucleic acid processing and dynamics, as well as various methods.

Lactic Acid Bacteria

Lactic Acid Bacteria PDF Author: Gabriel Vinderola
Publisher: CRC Press
ISBN: 1040042260
Category : Science
Languages : en
Pages : 1279

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Book Description
Through five editions, and since 1993, Lactic Acid Bacteria: Microbiological and Functional Aspects has provided readers with information on how and why fermentation by lactic acid-producing bacteria improves the shelf life, palatability, and nutritive value of perishable foods and also how these microbes have been used as probiotics for decades. Thoroughly updated (with the current lactobacilli taxonomy) and fully revised, with a rearrangement of chapters into four sections, the Sixth Edition covers new findings on health effects, properties, production and stability of LAB as well as regulatory aspects globally. The new edition also addresses the technological use of LAB in various fermentations of food, feed, and beverage and their safety considerations. It also includes the rising concept of postbiotics and discusses new targets such as cognitive function, metabolic health, and respiratory health. Key Features: In 42 chapters, divided into 4 sections, findings are presented on health effects, properties and stability of LAB as well as production of target-specific LAB. Covers the revised ‘Lactobacillus’ taxonomy Addresses novel topics such as postbiotics Presents new discoveries related to the mechanisms of actions of lactic acid bacteria Covers the benefits of LAB in fermentation of dairy, cereal, meat, vegetable and silage, including non-Western traditional fermented foods from Africa and Asia Discusses the less-known role of LAB as food spoilers Reports on the health benefits of LAB on humans and animals Covers the global regulatory framework related to safety and efficacy

Quorum Sensing vs Quorum Quenching: A Battle with No End in Sight

Quorum Sensing vs Quorum Quenching: A Battle with No End in Sight PDF Author: Vipin Chandra Kalia
Publisher: Springer
ISBN: 9788132235484
Category : Science
Languages : en
Pages : 0

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Book Description
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?