Actinobacteria, a Source of Biocatalytic Tools

Actinobacteria, a Source of Biocatalytic Tools PDF Author: Dirk Tischler
Publisher: Frontiers Media SA
ISBN: 2889459225
Category :
Languages : en
Pages : 236

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Book Description
Actinobacteria (Actinomycetes) represent one of the largest and most diverse phyla among Bacteria. The remarkable diversity is displayed by various lifestyles, distinct morphologies, a wide spectrum of physiological and metabolic activities, as well as genetics. Interestingly, most Actinobacteria have a high GC-content (ranging from 51% to >70%) and belong to Gram-positive or Gram-variable type microbes. Many species are well known for large genomes which may be of linear style as in case of rhodococci or circular. Many of those harbor linear megaplasmids as a kind of genetic storage device. Frequently gene redundancy is reported and in most cases the evolutionary history or a functional role remains enigmatic. Nevertheless these large genomes and megaplasmids provide access to a number of potential (homologous) biocatalysts which await elucidation. Actinobacteria are well known for their biotechnological potential which is exemplarily described for amino acid producing Corynebacteria, secondary metabolite producing Streptomyces, pathogenic targets as Nocardia and Mycobacteria, carotenoid building Micrococcus strains, acid fermenting Propionibacteria, health and food related Bifidobacterium strains, rubber degrading Gordonia species, and organic pollutant degrading rhodococci among others. In many cases individual pathways or enzymes can be modified or recombinantly employed for biocatalysis. Even some genetic tools to work directly in those microbes have been successfully used as for example in Corynebacterium or in Rhodococcus species. During the last decade more and more genomes have been sequenced and made available for data mining and become accessible by state of the art genomic manipulation methods as minimal genomes, knock-out or artificial evolution. With respect to this large and ancient phylum many questions can be asked either from a scientific or industrial point of view. In order to provide some crystallization points we like to raise some examples as follows. How small can be an actinobacterial genome? What is the driving force to comprise large and repetitive genomes/megaplasmids? What is needed to generate an actinobacterial power house for industry? Can we annotate novel biocatalysts from scratch and improve functional annotation? What are common and different features with respect to other bacteria and/or fungi? How many novel antibiotics are hidden among Actinobacteria? Is there more potential among extremophile members or are they only specialized? Here especially the production of natural compounds is of high interest.

Actinobacteria, a Source of Biocatalytic Tools

Actinobacteria, a Source of Biocatalytic Tools PDF Author: Dirk Tischler
Publisher: Frontiers Media SA
ISBN: 2889459225
Category :
Languages : en
Pages : 236

Get Book Here

Book Description
Actinobacteria (Actinomycetes) represent one of the largest and most diverse phyla among Bacteria. The remarkable diversity is displayed by various lifestyles, distinct morphologies, a wide spectrum of physiological and metabolic activities, as well as genetics. Interestingly, most Actinobacteria have a high GC-content (ranging from 51% to >70%) and belong to Gram-positive or Gram-variable type microbes. Many species are well known for large genomes which may be of linear style as in case of rhodococci or circular. Many of those harbor linear megaplasmids as a kind of genetic storage device. Frequently gene redundancy is reported and in most cases the evolutionary history or a functional role remains enigmatic. Nevertheless these large genomes and megaplasmids provide access to a number of potential (homologous) biocatalysts which await elucidation. Actinobacteria are well known for their biotechnological potential which is exemplarily described for amino acid producing Corynebacteria, secondary metabolite producing Streptomyces, pathogenic targets as Nocardia and Mycobacteria, carotenoid building Micrococcus strains, acid fermenting Propionibacteria, health and food related Bifidobacterium strains, rubber degrading Gordonia species, and organic pollutant degrading rhodococci among others. In many cases individual pathways or enzymes can be modified or recombinantly employed for biocatalysis. Even some genetic tools to work directly in those microbes have been successfully used as for example in Corynebacterium or in Rhodococcus species. During the last decade more and more genomes have been sequenced and made available for data mining and become accessible by state of the art genomic manipulation methods as minimal genomes, knock-out or artificial evolution. With respect to this large and ancient phylum many questions can be asked either from a scientific or industrial point of view. In order to provide some crystallization points we like to raise some examples as follows. How small can be an actinobacterial genome? What is the driving force to comprise large and repetitive genomes/megaplasmids? What is needed to generate an actinobacterial power house for industry? Can we annotate novel biocatalysts from scratch and improve functional annotation? What are common and different features with respect to other bacteria and/or fungi? How many novel antibiotics are hidden among Actinobacteria? Is there more potential among extremophile members or are they only specialized? Here especially the production of natural compounds is of high interest.

Natural Products from Actinomycetes

Natural Products from Actinomycetes PDF Author: Ravishankar V. Rai
Publisher: Springer Nature
ISBN: 9811661324
Category : Science
Languages : en
Pages : 512

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Book Description
This book provides in-depth information about the ecology, diversity and applications of Actinomycetes. The book is divided into two major parts. The first part discusses the diversity, chemical biology and ecology of Actinomycetes. It also covers the discovery of natural products from soil, endophytic and marine-derived Actinomycetes. It includes natural product discovery, chemical biology, new methods for discovering secondary metabolites, structure elucidation and biosynthetic research of natural products. The chapters in this part focus on the effects of biological and chemical elicitation at molecular level on secondary metabolism in Actinomycetes. The second part of the book discusses genomic and synthetic biology approaches in Actinomycetes drug discovery. This part includes chapters focused on the application of metabolic engineering to optimize natural product synthesis and the use of omics data in engineering of regulatory genes. It covers the advanced tools of synthetic biology and metabolic engineering including cluster assembly, CRISPR/Cas9 technologies, and chassis strain development for natural product overproduction in Actinomycetes. It describes the use of bioinformatics tools for reprogramming of biosynthetic pathways through polyketide synthase and non-ribosomal peptide synthetase engineering. These advanced genomic and molecular tools are expected to accelerate the discovery and development of new natural products from Actinomycetes with medicinal and other industrial applications. The book is useful to researchers and students in the field of microbiology, pharmaceutical sciences and drug discovery.

Bioprospecting and Biotechnology of Extremophiles

Bioprospecting and Biotechnology of Extremophiles PDF Author: Milko A. Jorquera
Publisher: Frontiers Media SA
ISBN: 2889631303
Category :
Languages : en
Pages : 130

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Book Description


Actinobacteria

Actinobacteria PDF Author: Dharumadurai Dhanasekaran
Publisher: BoD – Books on Demand
ISBN: 9535122487
Category : Science
Languages : en
Pages : 401

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Book Description
This book presents an introductory overview of Actinobacteria with three main divisions: taxonomic principles, bioprospecting, and agriculture and industrial utility, which covers isolation, cultivation methods, and identification of Actinobacteria and production and biotechnological potential of antibacterial compounds and enzymes from Actinobacteria. Moreover, this book also provides a comprehensive account on plant growth-promoting (PGP) and pollutant degrading ability of Actinobacteria and the exploitation of Actinobacteria as ecofriendly nanofactories for biosynthesis of nanoparticles, such as gold and silver. This book will be beneficial for the graduate students, teachers, researchers, biotechnologists, and other professionals, who are interested to fortify and expand their knowledge about Actinobacteria in the field of Microbiology, Biotechnology, Biomedical Science, Plant Science, Agriculture, Plant pathology, Environmental Science, etc.

The Prokaryotes

The Prokaryotes PDF Author: Edward F. DeLong
Publisher: Springer
ISBN: 9783642301193
Category : Science
Languages : en
Pages : 567

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Book Description
The Prokaryotes is a comprehensive, multi-authored, peer reviewed reference work on Bacteria and Achaea. This fourth edition of The Prokaryotes is organized to cover all taxonomic diversity, using the family level to delineate chapters. Different from other resources, this new Springer product includes not only taxonomy, but also prokaryotic biology and technology of taxa in a broad context. Technological aspects highlight the usefulness of prokaryotes in processes and products, including biocontrol agents and as genetics tools. The content of the expanded fourth edition is divided into two parts: Part 1 contains review chapters dealing with the most important general concepts in molecular, applied and general prokaryote biology; Part 2 describes the known properties of specific taxonomic groups. Two completely new sections have been added to Part 1: bacterial communities and human bacteriology. The bacterial communities section reflects the growing realization that studies on pure cultures of bacteria have led to an incomplete picture of the microbial world for two fundamental reasons: the vast majority of bacteria in soil, water and associated with biological tissues are currently not culturable, and that an understanding of microbial ecology requires knowledge on how different bacterial species interact with each other in their natural environment. The new section on human microbiology deals with bacteria associated with healthy humans and bacterial pathogenesis. Each of the major human diseases caused by bacteria is reviewed, from identifying the pathogens by classical clinical and non-culturing techniques to the biochemical mechanisms of the disease process. The 4th edition of The Prokaryotes is the most complete resource on the biology of prokaryotes. The following volumes are published consecutively within the 4th Edition: Prokaryotic Biology and Symbiotic Associations Prokaryotic Communities and Ecophysiology Prokaryotic Physiology and Biochemistry Applied Bacteriology and Biotechnology Human Microbiology Actinobacteria Firmicutes Alphaproteobacteria and Betaproteobacteria Gammaproteobacteria Deltaproteobacteria and Epsilonproteobacteria Other Major Lineages of Bacteria and the Archaea

Marine Microbiology

Marine Microbiology PDF Author: Se-Kwon Kim
Publisher: John Wiley & Sons
ISBN: 3527665277
Category : Science
Languages : en
Pages : 558

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Book Description
Deliberately breaking with the classical biology-centered description of marine organisms and their products, this reference emphasizes microbial technology over basic biology, setting it apart from its predecessors. As such, it systematically covers the technology behind high-value compounds for use as pharmaceuticals, nutraceuticals or cosmetics, from prospecting to production issues. Following a definition of the field, the book goes on to address all industrially important aspects of marine microbial biotechnology. The first main part contains a description of the major production organisms, from archaebacteria to cyanobacteria to algae and symbionts, including their genetic engineering. The remaining four parts look at commercially important compounds produced by these microorganisms together with their applications. Throughout, the emphasis is on technological considerations, and the future potential of these organisms or compound classes is discussed. A valuable and forward-looking resource for innovative biotechnologists in industry as well as in academia.

Halophiles

Halophiles PDF Author: Dinesh K Maheshwari
Publisher: Springer
ISBN: 3319145959
Category : Science
Languages : en
Pages : 459

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Book Description
The world of halophiles is quite diverse and their representatives in three domains of life i.e. archaea, bacteria and eukarya. They are found all over the small subunit rRNA based tree of life and these micro-organisms are adapted to salt concentration up to saturation hence able to grow at >300g/l Nacl concentration. Their metabolic diversity is high as well encompassing oxygenic and anoxygenic phototrophs, aerobic heterotrophs, denitrifiers, sulphate reducers, fermenters and methanogens. The proteins of halophiles are magnificently engineered to function in a milieu containing 2-5M salt that encodes genes represent a valuable repository and resource for reconstruction and visualizing processes of habitat selection and adaptive evolution. Search for new enzymes endowed with novel activities and enhanced stability continues to be desirable purpose for important commercial production of biotechnological significance. These poly extremophiles proved excellent source of enzymes and metabolites possessing inherent ability to function in extreme conditions of high salt, alkaline pH and facilitating catalysis for industrial application in food processing, industrial bioconversion, bioremediation etc. In fact, it has just begun to realize the great potential and true extent of diversity and suitable applications if explored them judiciously. This book highlights current applications and research on halophiles to provide a timely overview. Chapters are written by expert authors from around the world and include topics of varied importance which include their role to play in enzyme production, restoration of soil fertility and plant growth , antimicrobial and biocatalytic potential, biomolecules in nanotechnology and aspects of quorum sensing. The book is divided into three sections, dealing with biodiversity, biotechnology and sustainable exploitation of halophiles. This major new work represents a valuable source of information to all those scientists interested in microorganisms in general and extremophiles in particular with respect to their innovative products and applications.

Corynebacteria

Corynebacteria PDF Author: Andreas Burkovski
Publisher:
ISBN: 9781913652098
Category :
Languages : en
Pages :

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Book Description
This volume brings together the expertise and enthusiasm of today's leading experts to provide a description of the current state-of-the-art molecular biology toolbox available for Corynebacterium research, including global analyses techniques such as comparative genomics, transcriptome, proteome and metabolome analysis as well as the most recent knowledge on Corynebacterium promoter structures and vector systems. Furthermore, topics such as regulatory networks controlling carbon, nitrogen, phosphorus, sulphur and iron metabolism, cell wall structure, proteolysis and environmental stress respo.

Biology and Biotechnology of Actinobacteria

Biology and Biotechnology of Actinobacteria PDF Author: Joachim Wink
Publisher: Springer
ISBN: 3319603396
Category : Science
Languages : en
Pages : 398

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Book Description
This book provides in-depth insights into the biology, taxonomy, genetics, physiology and biotechnological applications of Actinobacteria. It especially focuses on the latter, reviewing the wide variety of actinobacterial bioactive molecules and their benefits for diverse industrial applications such as agriculture, aquaculture, biofuel production and food technology. Actinobacteria are one of the most promising sources of small bioactive molecules and it is estimated that only a small percentage of actinobacterial bioactive chemicals have been discovered to date. Identifying new diverse gene clusters of biotechnological relevance in the genome of Actinobacteria will be crucial to developing advanced applications for pharmaceutical, industrial and agricultural purposes. The book offers a unique resource for all graduate students, researchers and practitioners in the fields of microbiology, microbial biotechnology, and the genetic engineering of Actinobacteria.

Bioprocessing for Biomolecules Production

Bioprocessing for Biomolecules Production PDF Author: Gustavo Molina
Publisher: John Wiley & Sons
ISBN: 1119434327
Category : Technology & Engineering
Languages : en
Pages : 532

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Book Description
Presents the many recent innovations and advancements in the field of biotechnological processes This book tackles the challenges and potential of biotechnological processes for the production of new industrial ingredients, bioactive compounds, biopolymers, energy sources, and compounds with commercial/industrial and economic interest by performing an interface between the developments achieved in the recent worldwide research and its many challenges to the upscale process until the adoption of commercial as well as industrial scale. Bioprocessing for Biomolecules Production examines the current status of the use and limitation of biotechnology in different industrial sectors, prospects for development combined with advances in technology and investment, and intellectual and technical production around worldwide research. It also covers new regulatory bodies, laws and regulations, and more. Chapters look at biological and biotechnological processes in the food, pharmaceutical, and biofuel industries; research and production of microbial PUFAs; organic acids and their potential for industry; second and third generation biofuels; the fermentative production of beta-glucan; and extremophiles for hydrolytic enzymes productions. The book also looks at bioethanol production from fruit and vegetable wastes; bioprocessing of cassava stem to bioethanol using soaking in aqueous ammonia pretreatment; bioprospecting of microbes for bio-hydrogen production; and more. Provides up to date information about the advancements made on the production of important biotechnological ingredients Complete visualization of the general developments of world research around diverse products and ingredients of technological, economic, commercial and social importance Investigates the use and recovery of agro-industrial wastes in biotechnological processes Includes the latest updates from regulatory bodies for commercialization feasibility Offering new products and techniques for the industrial development and diversification of commercial products, Bioprocessing for Biomolecules Production is an important book for graduate students, professionals, and researchers involved in food technology, biotechnology; microbiology, bioengineering, biochemistry, and enzymology.