Download or read book Bacteriophage host Interactions in Lactic Streptococci written by Alan Roy Huggins and published by . This book was released on 1979 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Characterization of Bacteriophage host Interactions in Streptococcus Cremoris UC503 and Related Lactic Streptococci written by Veronica Ann Costello and published by . This book was released on 1988 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cloning and Characterization of Structural Genes of Streptococcus Lactis Bacteriophage F4 1 written by Jeong Hwan Kim and published by . This book was released on 1989 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gram positive phages From isolation to application written by Jennifer Mahony and published by Frontiers Media SA. This book was released on 2015-05-15 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phage biology is one of the most significant and fundamental aspects of biological research and is often used as a platform for model studies relating to more complex biological entities. For this reason, phage biology has enjoyed focused attention and significant advances have been made in the areas of phage genomics, transcriptomics and the development and characterisation of phage-resistance mechanisms. In recent years, considerable research has been performed to increase our understanding of the interactions of these phages with their hosts using genomic, biochemical and structural approaches. Such multidisciplinary approaches are core to developing a full understanding of the processes that govern phage infection, information that may be harnessed to develop anti-phage strategies that may be applied in food fermentations or applied in a positive sense in phage therapy applications. The co-evolutionary processes of these phages and their hosts have also been a considerable focus of research in recent years. Such data has promoted a deeper understanding of the means by which these phages attach to and infect their hosts and permitted the development of effective anti-phage strategies. Furthermore, the presence and activity of host-encoded phage-resistance systems that operate at various stages of the phage cycle and the potential for the application of such systems consolidates the value of research in this area. Conversely, phages and their components have been applied as therapeutic agents against a number of pathogens including, among others, Clostridium difficile, Lactococcus garviae, Mycobacterium spp., Listeria spp. and the possibilities and limitations of these systems will be explored in this topic. Additionally, phage therapeutic approaches have been applied to the prevention of development of food spoilage organisms in the brewing and beverage sectors and exhonorate the positive applications of phages in the industrial setting. This research topic is aimed to address the most current issues as well as the most recent advances in the research of phages infecting Gram-positive bacteria covering areas such as phages in food fermentations, their impact in industry, phage ecology, genomics, evolution, structural analysis, phage-host interactions and the application of phages and components thereof as therapeutic agents against human and animal pathogens.
Download or read book Streptococci and the Host written by Thea Horaud and published by Springer Science & Business Media. This book was released on 2013-11-08 with total page 939 pages. Available in PDF, EPUB and Kindle. Book excerpt: Streptococci and enterococci are the etiologic agents of infectious diseases that rank among the most severe in human pathology. The diagnosis, antibiotherapy, and prevention of the streptococcal diseases have improved considerably. However, the reemergence of severe streptococcal and enterococcal diseases constitutes a growing public health con cern, which remains open to scientific and medical debate. The XIII'h Lancefield International Symposium on Streptococci and Streptococcal Diseases, held at Institut Pasteur, Paris, France, September 16---2el, 1996, attracted 505 par ticipants from 43 countries. Twenty-two percent of the participants were students, a clear sign of the intense interest in this field. Of the 390 presentations made at the symposium, 260 were submitted as manuscripts for the Proceedings; we have included 249 of these in this volume. This symposium provided a forum for the presentation of the most recent findings and approaches to understanding several important fields, such as new aspects of infec tion, bacteria~host interactions, epidemiology, and molecular genetics of streptococci and enterococci. Over the last three years, the study of these subjects has expanded as increas ingly sophisticated methods of molecular analysis have been applied to investigate the bi ology of pathogenic streptococci and enterococci. Virulence, vaccine strategies, genetics, antibiotic resistance, epidemiology, and immunology are now being examined through the lens of molecular biology. The application of recently developed techniques to this field will continue to yield insight into the mechanism by which these organisms cause disease.
Download or read book Genetic and Physical Characterisation of a Lysogenic and a Lytic Bacteriophage Infecting Streptococcus Thermophilus written by Elizabeth Stanley and published by . This book was released on 1999 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lactic acid bacteria (LAB) are gram-positive, acid tolerant rods or cocci which produce lactic acid as the major end product of fermentation (Axelsson, 1993). This group comprises the genera Lactococcus, Lactobacillus, Leuconostoc, Streptococcus, Pediococcus and Carnobacterium, many of which play important roles in the food fermentation industry (McKay and Baldwin, 1990). LAB are used as starter cultures for the production of a wide range of fermented dairy foods (i.e. cheeses, yogurts, and fermented milks) as well as a diversity of other products such as fermented meats, sour dough bread and silage (Mercenier et al., 1994). In addition to their capacity to rapidly acidify the fermentable food product, thereby inhibiting growth of pathogens and spoilage microorganisims, they also provide a range of flavour and texture characteristic to the food. Bacteriophage (phage) are obligete intracellular, bacterial parasites and are found ubiquitously in nature. Phages infecting LAB are of considerable economic importance because they repreesent one of the main causes of fermentation failure. The dairy industry has implemented a number of technological strategies to alleviate the problem of phage infection including air filtration, separation of bulk starter tanks from the production area, direct vat inoculation, the use of closed vats, rotation of starter strains and the application of phage-resistant starter cultures (Neve, 1996). However, these measures have not eliminated phage as a serious problem in industrial practice. As an alternative strategy a significant amount of research has been aimed at understanding phage-host interactions as well as phage biology in the expectation that a fundamental understanding of the LAB phages may assist in providing an efficient and long-term solution to phage infection. Due to these investigations, a significant body of knowledge is now available on the primary genome structure and organisation of many phages infecting LAB thus giving an insight into their evolutionary history while at the same time providing the information for the development of "intelligent" phage resistance strategies. This review will summarise the accumulated information available on LAB phage biology and genomics with occasional emphasis on phages infecting S. thermophilus.
Download or read book Lysogeny in the Lactic Streptococci written by Fone-Mao Wu and published by . This book was released on 1988 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lactic Acid Bacteria Genetics Metabolism and Applications written by Roland J. Siezen and published by Springer Science & Business Media. This book was released on 2002-09-30 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Foods fermented with lactic acid bacteria are an important part of the human diet. Lactic acid bacteria play an essential role in the preservation of food raw materials and contribute to the nutritional, organoleptic, and health properties of food products and animal feed. The importance of lactic acid bacteria in the production of foods throughout the world has resulted in a continued scientific interest in these micro-organisms over the last two decades by academic research groups as well as by industry. This research has resulted in a number of important scientific breakthroughs and has led to new applications. The most recent of these advances is the establishment of the complete genome sequences of a number of different lactic acid bacterial species. To communicate and stimulate the research on lactic acid bacteria and their applications, a series of tri-annual symposia on lactic acid bacteria was started in 1983 under the auspices of the Netherlands Society for Microbiology (NVVM), which was later also supported by the Federation of European Microbiological Societies (FEMS). The aim of these state-of-the-art symposia is to offer a unique platform for universities, institutes, and industry in this area of biotechnology, to present recent work, to obtain information on new developments, and to exchange views with colleagues from all over the world on scientific progress and applications. The growing number of participants at these symposia has been a clear demonstration of the interest of the international industrial and scientific community in this area of research. The 7th Symposium is based on a number of plenary lectures that review the scientific progress of the last years in the different areas of research on lactic acid bacteria, and which are documented in this special issue of Antonie van Leeuwenhoek.
Download or read book The Effects of Antibiotics on Lactic Streptococci and Lactic Streptococcal Host phage Relationships written by Ross James Richards and published by . This book was released on 1960 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phage Ecology written by Sagar M. Goyal and published by Wiley-Interscience. This book was released on 1987-11-13 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the first to explore the distribution, fate, and ecology of phage in the environment and point up the important applications of this information. The text begins with an historical overview, followed by a discussion of the current state of phage taxonomy. Next is covered the distribution patterns and fate of phage in diverse environments, e.g. soil, fresh water, marine water, and water and wastewater treatment plants. Factors that can influence the numbers and activity of phage populations, e.g. host and phage density, association of a phage with solids, presence of organic matter, temperature, pH, ultraviolet and visible light, concentration and types of ions present, and the metabolic activities of bacteria other than the phage host are examined. One chapter is devoted to the occurrence and implications of phage in various industries, e.g. dairy, wine, sausage, and antibiotic industries.
Download or read book Microbiology in Dairy Processing written by Palmiro Poltronieri and published by John Wiley & Sons. This book was released on 2017-11-29 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: An authoritative guide to microbiological solutions to common challenges encountered in the industrial processing of milk and the production of milk products Microbiology in Dairy Processing offers a comprehensive introduction to the most current knowledge and research in dairy technologies and lactic acid bacteria (LAB) and dairy associated species in the fermentation of dairy products. The text deals with the industrial processing of milk, the problems solved in the industry, and those still affecting the processes. The authors explore culture methods and species selective growth media, to grow, separate, and characterize LAB and dairy associated species, molecular methods for species identification and strains characterization, Next Generation Sequencing for genome characterization, comparative genomics, phenotyping, and current applications in dairy and non-dairy productions. In addition, Microbiology in Dairy Processing covers the Lactic Acid Bacteria and dairy associated species (the beneficial microorganisms used in food fermentation processes): culture methods, phenotyping, and proven applications in dairy and non-dairy productions. The text also reviews the potential future exploitation of the culture of novel strains with useful traits such as probiotics, fermentation of sugars, metabolites produced, bacteriocins. This important resource: Offers solutions both established and novel to the numerous challenges commonly encountered in the industrial processing of milk and the production of milk products Takes a highly practical approach, tackling the problems faced in the workplace by dairy technologists Covers the whole chain of dairy processing from milk collection and storage though processing and the production of various cheese types Written for laboratory technicians and researchers, students learning the protocols for LAB isolation and characterisation, Microbiology in Dairy Processing is the authoritative reference for professionals and students.
Download or read book Observations on the Activity of Bacteriophage in the Group of Lactic Streptococci written by Hugh Robinson Whitehead and published by . This book was released on 1937* with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultrastructure of Bacterial Viruses written by Anna S. Tikhonenko and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mter the discoveryof the tobacco mosaic virus by D. I. Ivanov skU in 1892 [14], the new science of virology was born and began to develop rapidly. The number of viruses now known is enormous and they can infect nearly all animal and plant organisms. Microorganisms themselves are no exception to this rule. Despite intensive study of Vlruses, their origin and nature are still a subject for speculation and hypothesis. The general concept of viruses embraces a wide group of biologically active structures occupying an intermediate position between living and nonliving matter. The dual character of viruses is determined by the fact that, while they do not possess an inde pendent system of metabolism, which is a characteristic feature of every living being, they nevertheless carry within themselves all the necessary information for autoreproduction. A striking feature of the virus is that it consists essentially of two components: a protein envelope and the nucleic acid con tained within it. In contrast to the elementary structural unit of the living or ganism, the cell, which contains two types of nucleic acid (DNA and RNA), the virus particle contains only one type of nucleic acid - either DNA or RNA. It is perhaps this which is responsible for the imperfection of the virus as a living organism.
Download or read book A Genetic Switch written by Mark Ptashne and published by CSHL Press. This book was released on 2004 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first edition of Mark Ptashne's 1986 book describing the principles of gene regulation in phage lambda became a classic in both content and form, setting a standard of clarity and precise prose that has rarely been bettered. This edition is a reprint of the original text, together with a new chapter updating the story to 2004. Among the striking new developments are recent findings on long-range interactions between proteins bound to widely separated sites on the phage genome, and a detailed description of how gene activation works.
Download or read book VIRUSES OF PROKARYOTES written by Hans-Wolfgang Ackermann and published by Springer. This book was released on 1987-10-31 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bacteriophage written by Stephen Mc Grath and published by Caister Academic Press Limited. This book was released on 2007 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by eminent international researchers actively involved in the disparate areas of bacteriophage research this book focuses on the current rapid developments in this exciting field.
Download or read book Bacteriophages written by David R. Harper and published by Springer Nature. This book was released on 2021-01-30 with total page 1376 pages. Available in PDF, EPUB and Kindle. Book excerpt: This first major reference work dedicated to the mannifold industrial and medical applications of bacteriophages provides both theoretical and practical insights into the emerging field of bacteriophage biotechnology. The book introduces to bacteriophage biology, ecology and history and reviews the latest technologies and tools in bacteriophage detection, strain optimization and nanotechnology. Usage of bacteriophages in food safety, agriculture, and different therapeutic areas is discussed in detail. This book serves as essential guide for researchers in applied microbiology, biotechnology and medicine coming from both academia and industry.
