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Showing 1 to 20 of 152 for “"Bacteriophages"”.
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Biophysical chemistry of lipopolysaccharide specific bacteriophages
Carbohydrate recognition is a ubiquitous principle underlying many fundamental biological processes like fertilization, embryogenesis and viral infections. But how carbohydrate specificity and affinity induce a molecular event is not well understood. One of these examples is bacteriophage P22 that …
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RNA bacteriophages: diversity, abundance, and applications
… This viral component (virome) is dominated by bacteriophages (phages) - viruses that target and infect prokaryotes. They are intrinsically linked to the bacterial community of every ecosystem and potentially dictate the bacterial composition, function, and dynamics through a series of complex …
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Ultraviolet Induction Properties of SALMONELLA POTSDAM Bacteriophages
<p>Three lysogenic strains of <em>Salmonella potsdam</em> were studied to determine whether or not they were inducible by ultraviolet light under certain conditions. The strains examined were SP3, SP4, and SP9. SP3 and SP4 contained a single prophage each and SP9 contained two prophages P9a and …
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Exploiting Bacteriophages to Tackle Clostridium difficile Infection
Clostridium difficile infection (CDI) currently affects around 20,000 people each year, in healthcare institutions and in the community, and will often follow disruption of the gut microbiome. Current treatment strategies call for the use of further antibiotics, of which there is a limited choice. …
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A study of the ecology & diversity of bacteriophages
Bacteriophages are ubiquitous and abundant in nature, yet our knowledge of their ecology, global impact on the ecosystem, their relationships with one another, and their hosts remains relatively primitive. Their consequence on the resident microbial population greatly depends upon their lifecycle …
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Development of natural and engineered bacteriophages as antimicrobials
… can lead to long-lasting health effects. Bacteriophages may provide a solution for both of these problems, in that they are narrow-spectrum and can be used to specifically kill target microbes without disrupting whole community structure through off-target effects. Here, various approaches …
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Isolation and Characterization of Bacteriophages from Fish tank Samples
<p>Bacteriophages (phages) are viral obligate intracellular parasites that infect bacteria. Research has been carried out on alternative treatment plans for bacterial infections due to the increase in antibiotic resistance. Phages have been proposed as an alternative to antibiotics. This research …
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Some Physical and Chemical Properties of SALMONELLA POTSDAM Bacteriophages
… are killed at this temperature. Three temperate bacteriophages P3/2, P4/2 and P9a/2 isolated from lysogenic strains of <em>S. potsdam</em> were investigated. Phage P4/2 is in Group A and phages P3/2 and P9a/2 in Group B.</p> <p>The kinetics of heat inactivation and of ultraviolet light …
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Genetic analysis of bacteriophages from clinical and environmental samples
Bacteriophages, viruses infecting bacteria, are uniformly present in any location where there are high numbers of bacteria, both in the external environment and the human body. Knowledge of their diversity is limited by the difficulty to culture the host species and by the lack of the universal …
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Isolation and Characterization of Bacteriophages Targeting Uropathogenic E. coli
… burden on the health care system worldwide. Bacteriophages (phages) that target E. coli strains could provide an alternative treatment for UTIs, particularly those resistant to antibiotics. This study aimed to screen a variety of environmental samples for phages that target a UPEC strains and …
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Characterization of ToxINPa-sensitive bacteriophages of Serratia sp. ATCC 39006
Abortive infection (Abi) is an anti-phage mechanism in which a bacterium initiates its own death upon phage infection. This prevents or decreases the production of phage progeny and protects clonal siblings in the bacterial population by an act akin to an “altruistic suicide.” Abortive infection …
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Environmental bacteriophages infecting Dickeya and Serratia species: receptors and diversity
… methods has generated interest in the use of bacteriophages (phages) as a novel tool for biocontrol. In the last decade, six phages have been isolated in Belgium and Poland using Dickeya solani as the host. Previous work in this laboratory has isolated ninety phages capable of infecting D. …
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ToxIN-mediated resistance to and cell-free production of Salmonella bacteriophages
Salmonella remains a leading cause of foodborne illnesses in the U.S. and worldwide. Though numerous strategies are implemented to control foodborne Salmonella, many come with limitations that reduce their efficacy or restrict which foods can be treated. An alternative control strategy that …
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Characterisation of the temperate bacteriophages of salmonella enterica and salmonella bongori
Salmonella is a major cause of enteric illness in both humans and animals. The ability of Salmonella isolates to cause disease in animals and humans encompasses a spectrum of host specificity and disease severity. In terms of evolution Salmonella isolates have remained relatively similar in terms …
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Mutational and molecular analyses of lactococcal bacteriophages TP901-1 and Tuc2009
Bacteriophages belonging to the Siphoviridae family represent viruses with a noncontractile tail that function as extremely efficient bacterium-infecting nanomachines. The Siphoviridae phages TP901-1 and Tuc2009 infect Lactococcus lactis, and both belong to the so-called P335 species. As P335 …
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Genetic Functions of Prophage: Interference With the Multiplication of Heterologous Bacteriophages
Made available in DSpace on 2014-12-05T21:45:25Z (GMT). No. of bitstreams: 1 0015236.pdf: 3975538 bytes, checksum: 5088a54a43f0def1f5fa218c36ae6270 (MD5) Previous issue date: 1955
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Conflict between bacteriophages and a mobile genetic element in bacterial immunity
Bacteriophages (phages) are the most abundant biological entities on the planet. They are ubiquitous and numerous across the many environments bacteria are found. To combat phage predation, bacteria have evolved numerous immune strategies, so-called anti-phage defense systems. Likewise, phages …
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Unraveling the Eco-Evolutionary Complexity of Uncultivated Bacteriophages in the Biosphere
Bacteriophages, or phages, have historically been distinguished by their small sizes and relatively simple genomes compared to cellular life. Discoveries over recent decades, however, have uncovered remarkably large phages, called jumbo phages, which are defined by having genomes over 200 kilobases …
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