Sensory Control and Function of Bacterial Bioluminescence PDF Download
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Author: Michael Silverman
Publisher:
ISBN:
Category :
Languages : en
Pages : 3
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Book Description
The goal of this project was to explore the sensory mechanisms which control expression of bioluminescence in the marine bacterium Vibrio harveyi. Genetic methods were used to discover a complex network of genes which encode functions for the production of extracellular, chemical signals (autoinducers) and for the synthesis of signal receptors (sensor kinases and response regulators). The genes and proteins defined by this study resemble elements of the phosphorelay paradigm known as two-component signal transduction. Therefore, the Vibrio harveyi system is considerably different from the quorum sensing mechanism used by other luminous bacteria.
Author: Michael Silverman
Publisher:
ISBN:
Category :
Languages : en
Pages : 3
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Book Description
The goal of this project was to explore the sensory mechanisms which control expression of bioluminescence in the marine bacterium Vibrio harveyi. Genetic methods were used to discover a complex network of genes which encode functions for the production of extracellular, chemical signals (autoinducers) and for the synthesis of signal receptors (sensor kinases and response regulators). The genes and proteins defined by this study resemble elements of the phosphorelay paradigm known as two-component signal transduction. Therefore, the Vibrio harveyi system is considerably different from the quorum sensing mechanism used by other luminous bacteria.
Author: Michael Silverman
Publisher:
ISBN:
Category :
Languages : en
Pages : 3
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Book Description
The goal of this project was to explore the sensory mechanisms which control the expression of bioluminescence in the marine bacterium Vibrio harveyi. Genetic methods were used to discover the genes which encode functions for the production of extracellular, chemical signals (autoinducers) and for the synthesis of proteins which mediate the response to such signals. A mutant defective in the production of one class of autoinducers was isolated. The gene or genes defective in this mutant were not isolated, but this mutant should be useful for future work to identify specific signaling functions. Another gene, luxT, which is important for transcription of the luxT genes encoding the luminescence enzymes, was cloned and sequenced. Further work to understand its precise role must still be done.
Author: Thérèse Wilson
Publisher: Harvard University Press
ISBN: 0674071913
Category : Science
Languages : en
Pages : 196
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Book Description
Bioluminescence is everywhere on earth—most of all in the ocean, from angler fish in the depths to the flashing of dinoflagellates at the surface. Here, Thérèse Wilson and Woody Hastings explore the natural history, evolution, and biochemistry of the diverse array of organisms that emit light. While some bacteria, mushrooms, and invertebrates, as well as fish, are bioluminescent, other vertebrates and plants are not. The sporadic distribution and paucity of luminous forms calls for explanation, as does the fact that unrelated groups evolved completely different biochemical pathways to luminescence. The authors explore the hypothesis that many different luciferase systems arose in the early evolution of life because of their ability to remove oxygen, which was toxic to life when it first appeared on earth. As oxygen became abundant and bioluminescence was no longer adequate for oxygen removal, other antioxidant mechanisms evolved and most luminous species became extinct. Those light-emitting species that avoided extinction evolved uses with survival value for the light itself. Today’s luminous organisms use bioluminescence for defense from predators, for their own predatory purposes, or for communication in sexual courtship. Bioluminescence was earlier viewed as a fascinating feature of the living world, but one whose study seemed unlikely to contribute in any practical way. Today, bioluminescence is no longer an esoteric area of research. Applications are numerous, ranging from the rapid detection of microbial contamination in beef and water, to finding the location of cancer cells, to working out circuitry in the brain.
Author: Gérald Thouand
Publisher: Springer
ISBN: 3662433850
Category : Science
Languages : en
Pages : 204
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Book Description
This book review series presents current trends in modern biotechnology. The aim is to cover all aspects of this interdisciplinary technology where knowledge, methods and expertise are required from chemistry, biochemistry, microbiology, genetics, chemical engineering and computer science. Volumes are organized topically and provide a comprehensive discussion of developments in the respective field over the past 3-5 years. The series also discusses new discoveries and applications. Special volumes are dedicated to selected topics which focus on new biotechnological products and new processes for their synthesis and purification. In general, special volumes are edited by well-known guest editors. The series editor and publisher will however always be pleased to receive suggestions and supplementary information. Manuscripts are accepted in English.
Author:
Publisher: Academic Press
ISBN: 0128054093
Category : Medical
Languages : en
Pages : 5215
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Book Description
The Senses: A Comprehensive Reference, Second Edition, Seven Volume Set is a comprehensive reference work covering the range of topics that constitute current knowledge of the neural mechanisms underlying the different senses. This important work provides the most up-to-date, cutting-edge, comprehensive reference combining volumes on all major sensory modalities in one set. Offering 264 chapters from a distinguished team of international experts, The Senses lays out current knowledge on the anatomy, physiology, and molecular biology of sensory organs, in a collection of comprehensive chapters spanning 4 volumes. Topics covered include the perception, psychophysics, and higher order processing of sensory information, as well as disorders and new diagnostic and treatment methods. Written for a wide audience, this reference work provides students, scholars, medical doctors, as well as anyone interested in neuroscience, a comprehensive overview of the knowledge accumulated on the function of sense organs, sensory systems, and how the brain processes sensory input. As with the first edition, contributions from leading scholars from around the world will ensure The Senses offers a truly international portrait of sensory physiology. The set is the definitive reference on sensory neuroscience and provides the ultimate entry point into the review and original literature in Sensory Neuroscience enabling students and scientists to delve into the subject and deepen their knowledge. All-inclusive coverage of topics: updated edition offers readers the only current reference available covering neurobiology, physiology, anatomy, and molecular biology of sense organs and the processing of sensory information in the brain Authoritative content: world-leading contributors provide readers with a reputable, dynamic and authoritative account of the topics under discussion Comprehensive-style content: in-depth, complex coverage of topics offers students at upper undergraduate level and above full insight into topics under discussion
Author: JoAnne Engebrecht
Publisher:
ISBN:
Category : Bioluminescence
Languages : en
Pages : 302
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Book Description
Author: Coreen Ann Waters
Publisher:
ISBN:
Category :
Languages : en
Pages : 266
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Book Description
Author: Hilary M. Lappin-Scott
Publisher: Cambridge University Press
ISBN: 9780521542128
Category : Medical
Languages : en
Pages : 332
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Book Description
Biochemistry and ecology of biofilms from industrial, medical and other viewpoints.
Author: Jan Roelof van der Meer
Publisher: Springer Nature
ISBN: 3031025709
Category : Mathematics
Languages : en
Pages : 153
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Book Description
Bacterial reporters are live, genetically engineered cells with promising application in bioanalytics. They contain genetic circuitry to produce a cellular sensing element, which detects the target compound and relays the detection to specific synthesis of so-called reporter proteins (the presence or activity of which is easy to quantify). Bioassays with bacterial reporters are a useful complement to chemical analytics because they measure biological responses rather than total chemical concentrations. Simple bacterial reporter assays may also replace more costly chemical methods as a first line sample analysis technique. Recent promising developments integrate bacterial reporter cells with microsystems to produce bacterial biosensors. This lecture presents an in-depth treatment of the synthetic biological design principles of bacterial reporters, the engineering of which started as simple recombinant DNA puzzles, but has now become a more rational approach of choosing and combining sensing, controlling and reporting DNA 'parts'. Several examples of existing bacterial reporter designs and their genetic circuitry will be illustrated. Besides the design principles, the lecture also focuses on the application principles of bacterial reporter assays. A variety of assay formats will be illustrated, and principles of quantification will be dealt with. In addition to this discussion, substantial reference material is supplied in various Annexes. Table of Contents: Short History of the use of Bacteria for Biosensing and Bioreporting / Genetic Engineering Concepts / Measuring with Bioreporters / Epilogue
Author: Gerhard Gottschalk
Publisher: Springer Science & Business Media
ISBN: 1461210720
Category : Science
Languages : en
Pages : 371
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Book Description
This concise yet comprehensive text surveys the field of bacterial metabolism in terms useful to students and researchers. Emphasis is on those metabolic reactions occurring only in bacteria. Thus, the book describes in detail the energy metabolism of the various groups of bacteria. In addition, it examines pathways used by bacteria for the degradation of organic compounds, the synthesis of cellular constituents, the regulation of bacterial metabolism and the fixation of molecular nitrogen.
