16 research outputs found

    A Shigella boydii bacteriophage which resembles Salmonella phage ViI

    Get PDF
    <p>Abstract</p> <p>Background</p> <p>Lytic bacteriophages have been applied successfully to control the growth of various foodborne pathogens. Sequencing of their genomes is considered as an important preliminary step to ensure their safety prior to food applications.</p> <p>Results</p> <p>The lytic bacteriophage, ΊSboM-AG3, targets the important foodborne pathogen, <it>Shigella</it>. It is morphologically similar to phage ViI of <it>Salmonella enterica </it>serovar Typhi and a series of phages of <it>Acinetobacter calcoaceticus </it>and <it>Rhizobium meliloti</it>. The complete genome of ΊSboM-AG3 was determined to be 158 kb and was terminally redundant and circularly permuted. Two hundred and sixteen open reading frames (ORFs) were identified and annotated, most of which displayed homology to proteins of <it>Salmonella </it>phage ViI. The genome also included four genes specifying tRNAs.</p> <p>Conclusions</p> <p>This is the first time that a Vi-specific phage for <it>Shigella </it>has been described. There is no evidence for the presence of virulence and lysogeny-associated genes. In conclusion, the genome analysis of ΊSboM-AG3 indicates that this phage can be safely used for biocontrol purposes.</p

    A proposed new bacteriophage subfamily: “Jerseyvirinae”

    Get PDF
    © 2015, Springer-Verlag Wien. Based on morphology and comparative nucleotide and protein sequence analysis, a new subfamily of the family Siphoviridae is proposed, named “Jerseyvirinae” and consisting of three genera, “Jerseylikevirus”, “Sp3unalikevirus” and “K1glikevirus”. To date, this subfamily consists of 18 phages for which the genomes have been sequenced. Salmonella phages Jersey, vB_SenS_AG11, vB_SenS-Ent1, vB_SenS-Ent2, vB_SenS-Ent3, FSL SP-101, SETP3, SETP7, SETP13, SE2, SS3e and wksl3 form the proposed genus “Jerseylikevirus”. The proposed genus “K1glikevirus” consists of Escherichia phages K1G, K1H, K1ind1, K1ind2 and K1ind3. The proposed genus “Sp3unalikevirus” contains one member so far. Jersey-like phages appear to be widely distributed, as the above phages were isolated in the UK, Canada, the USA and South Korea between 1970 and the present day. The distinguishing features of this subfamily include a distinct siphovirus morphotype, genomes of 40.7-43.6kb (49.6-51.4mol% G+C), a syntenic genome organisation, and a high degree of nucleotide sequence identity and shared proteins. All known members of the proposed subfamily are strictly lytic

    Natural solution to antibiotic resistance: bacteriophages ‘The Living Drugs’

    Get PDF

    Ethical Considerations of Body Donation

    No full text
    Dead human bodies not only teach students the structure and function of the human form but also provide a rich environment for other learning experiences, including ethical and professional development. Ethical questions especially arise from the procurement and use of bodies in anatomy. This chapter will describe the role that anatomical donation programs play in educating individuals about medical ethics. In contrast to historical anatomical body procurement, which was often coercive and discriminatory, modern anatomical gift programs focus on individual consent in each donor. Ongoing ethical challenges in body procurement include the role of not-for-profit and for-profit body donation programs, the potential monetary value of donated tissue, advertising for body donation programs, and detailed versus broad informed consent in donation. It is argued that transparent and ethical anatomical body procurement is one of the core values of a body donation program and a hallmark of all students’ ethical and professional training
    corecore