Genetic Manipulation of Streptomyces

Genetic Manipulation of Streptomyces PDF Author: D. A. Hopwood
Publisher:
ISBN:
Category : Gene expression
Languages : en
Pages : 378

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Book Description

Genetic Manipulation of Streptomyces

Genetic Manipulation of Streptomyces PDF Author: D. A. Hopwood
Publisher:
ISBN:
Category : Gene expression
Languages : en
Pages : 378

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Book Description


Genetic Manipulation of Streptomyces

Genetic Manipulation of Streptomyces PDF Author: David A. Hopwood
Publisher:
ISBN: 9780879699932
Category : Science
Languages : en
Pages : 356

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Streptomyces in Nature and Medicine

Streptomyces in Nature and Medicine PDF Author: David A. Hopwood
Publisher: Oxford University Press
ISBN: 9780199722280
Category : Medical
Languages : en
Pages : 272

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Book Description
This is an insiders account of 50 years of genetic studies of the soil-inhabiting microbes that produce most of the antibiotics used to treat infections, as well as anti-cancer, anti-parasitic and immunosuppressant drugs. The book begins by describing how these microbes the actinomycetes were discovered in the latter part of the nineteenth century, but remained a Cinderella group until, in the 1940s, they shot to prominence with the discovery of streptomycin, the first effective treatment for tuberculosis and only the second antibiotic, after penicillin, to become a medical marvel. There followed a massive effort over several decades to find further treatments for infectious diseases and cancer, tempered by the rise of antibiotic resistance consequent on antibiotic misuse and over-use. The book goes on to describe the discovery of gene exchange in the actinomycetes in the context of the rise of microbial genetics in the mid-20th century, leading to determination of the complete DNA sequence of a model member of the group at the turn of the millennium. There follow chapters in which the intricate molecular machinery that adapts the organisms metabolism and development to life in the soil, including antibiotic production, is illuminated by the DNA blueprint. Then come an up-to-the minute account of the use of genetic engineering to make novel, hybrid, antibiotics, and a topical description of techniques to learn the roles of the thousands of genes in a genome sequence, throwing a powerful light on the biology of the organisms and their harnessing for increasing antibiotic productivity. In the final chapter we return to the mycobacteria that cause tuberculosis and leprosy, the first actinomycetes to be discovered, and how methodology, in part derived from the study of the streptomycetes, is being applied to understand and control these still deadly pathogens.

The Search for Bioactive Compounds from Microorganisms

The Search for Bioactive Compounds from Microorganisms PDF Author: Satoshi Omura
Publisher: Springer Science & Business Media
ISBN: 1461244129
Category : Science
Languages : en
Pages : 373

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Book Description
Biologically active compounds isolated from microorganisms continue to be vital to the development of new drugs and agricultural chemicals. This book was prepared by current and past members of the laboratory of Dr. Satoshi Omura of the Kitasato Institute in Japan. Dr. Omura and his colleagues have discovered and studied a number of important antibiotics, and in their work they have pioneered new methods for screening microbes for interesting and important compounds. This book presents strategies and methods for identifying novel molecules with several types of biological activity. In addition, the book discusses the identification of microbial compounds of agrochemical importance, presents information on chemical screening methods, and concludes with chapters on microbial strain selection, fermentation technology, and genetic engineering of antibiotic-producing microorganisms. This book will be of great interest to scientists working in the very active and competitive fields of antibiotic and agrochemical discovery.

Practical Streptomyces Genetics

Practical Streptomyces Genetics PDF Author: Tobias Kieser
Publisher:
ISBN: 9780708406236
Category : Bacterial genetics
Languages : en
Pages : 613

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Book Description


Experimental Manipulation of Gene Expression

Experimental Manipulation of Gene Expression PDF Author: Masayori Inouye
Publisher: Academic Press
ISBN: 1483273970
Category : Science
Languages : en
Pages : 330

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Book Description
Experimental Manipulation of Gene Expression discusses a wide range of host systems in which to clone and express a gene of interest. The aims are for readers to quickly learn the versatility of the systems and obtain an overview of the technology involved in the manipulation of gene expression. Furthermore, it is hoped that the reader will learn enough from the various approaches to be able to develop systems and to arrange for a gene of particular interest to express in a particular system. The book opens with a chapter on the design and construction of a plasmid vector system used to achieve high-level expression of a particular phage regulatory protein normally found in minute amounts in a phage-infected bacterial cell. This is followed by separate chapters on topics such as high-level expression vectors that utilize efficient Escherichia coli lipoprotein promoter as well as various other portions of the lipoprotein gene Ipp; DNA cloning systems for streptomycetes; and the design and application of vectors for high-level, inducible synthesis of the product of a cloned gene in yeast.

Genetic Manipulation

Genetic Manipulation PDF Author: Werner Arber (Microbiologist)
Publisher: Cambridge University Press
ISBN: 9780521264174
Category : Science
Languages : en
Pages : 282

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Book Description
Twenty-three papers by the Committee on Genetic Experimentation (COGENE) review recent advances in experimental studies on microorganisms, plants and animals.

Bacterial Conjugation

Bacterial Conjugation PDF Author: D.B. Clewell
Publisher: Springer Science & Business Media
ISBN: 147579357X
Category : Medical
Languages : en
Pages : 421

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Book Description
Bacterial plasmids originating in a wide range of genera are being studied from a variety of perspectives in hundreds of laboratories around the globe. These elements are well known for carrying "special" genes that confer important survival properties, frequently neces sary under atypical conditions. Classic examples of plasmid-borne genes are those provid ing bacterial resistance to toxic substances such as antibiotics, metal ions, and bacte riophage. Often included are those determining bacteriocins, which may give the bacterium an advantage in a highly competitive environment. Genes offering metabolic alternatives to the cell under nutritionally stressed conditions are also commonly found on plasmids, as are determinants important to colonization and pathogenesis. It is likely that in many, if not most, cases plasmids and their passenger determinants represent DNA acquired recently by their bacterial hosts, and it is the characteristic mobility of these elements that enables their efficient establishment in new bacterial cells by the process known as conjugation. Whereas many plasmids are fully capable of promoting their own conjugal transfer, others move only with help from coresident elements. The ability of a plasmid to establish itself in a variety of different species is com mon, and recent studies have shown that transfer can in some cases occur from bacterial cells to eukaryotes such as yeast.

Actinomycetes in Biotechnology

Actinomycetes in Biotechnology PDF Author: Bozzano G Luisa
Publisher: Elsevier
ISBN: 0080984339
Category : Science
Languages : en
Pages : 510

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Book Description
The actinomycetes are a group of bacteria well known as producers of antibiotics. With the advent of molecular biology they have become important to biotechnologists in the search for new antibiotics, vitamins, enzyme inhibitors, etc. They also play an important role in the biodegradation of wastes, and their wide (natural) distribution in soil, composts, water and elsewhere in the environment makes them important to the agricultural and waste industries. This research book presents a broad view of the current interest in actinomycetes, ranging from isolation/screening of actinomycetes, discovery of new antibiotics, a substantial contribution on genetic manipulation to actinomycetes in agriculture, forestry, and the threat of actinomycetes as pollutants in the environment. The chapters, which have been written by experts, are intended to provide a balanced view of the opportunities and problems in an expanding field of interest.

Field Testing Genetically Modified Organisms

Field Testing Genetically Modified Organisms PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309040760
Category : Science
Languages : en
Pages : 185

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Book Description
Potential benefits from the use of genetically modified organismsâ€"such as bacteria that biodegrade environmental pollutantsâ€"are enormous. To minimize the risks of releasing such organisms into the environment, regulators are working to develop rational safeguards. This volume provides a comprehensive examination of the issues surrounding testing these organisms in the laboratory or the field and a practical framework for making decisions about organism release. Beginning with a discussion of classical versus molecular techniques for genetic alteration, the volume is divided into major sections for plants and microorganisms and covers the characteristics of altered organisms, past experience with releases, and such specific issues as whether plant introductions could promote weediness. The executive summary presents major conclusions and outlines the recommended decision-making framework.