in the present study, the therapeutic potential of bacteriophages virulent to staphylococcus aureus associated with goat mastitis were isolated, identified and assessed. staphylococcus aureus (host or indicator bacterium) was isolated from a goat suffering from clinical mastitis. based on cultural, morphological, biochemical tests and amplification of s. aureus specific thermonuclease gene inpc...

Skin and soft tissue infections (SSTI) caused by methicillin resistant Staphylococcus aureus (MRSA) are difficult to treat. Bacteriophage (phage) represent a potential alternate treatment for antibiotic resistant bacterial infections. In this study, 7 novel phage with broad lytic activity for S. aureus were isolated and identified. Screening of a diverse collection of 170 clinical isolates by e...

Objectives Horizontal gene transfer of antimicrobial resistance (AMR) genes between clinical isolates via transduction is poorly understood. MRSA are opportunistic pathogens resistant to all classes of antimicrobial agents but currently no strains are fully drug resistant. AMR gene transfer between Staphylococcus aureus isolates is predominantly due to generalized transduction via endogenous ba...

In this study, we demonstrated the remarkable genome plasticity of lytic lactococcal phages that allows them to rapidly adapt to the dynamic dairy environment. The lytic double-stranded DNA phage ul36 was used to sequentially infect a wild-type strain of Lactococcus lactis and two isogenic derivatives with genes encoding two phage resistance mechanisms, AbiK and AbiT. Four phage mutants resista...

Dilute solutions of MnCl(2) or MnSO(4) accelerate the lytic effect of phage upon susceptible staphylococci. Under the conditions of our experiments the manganese-containing mixtures lysed regularly 0.5 hour sooner than the controls. The effect is shown to be due to a lowering of the lytic threshold, i.e. the quantity of phage/bacterium requisite for lysis; Mn(++) reduces the ratio from 54 to ab...

This work describes the characterization and genome annotation of newly isolated lytic phage vB_SsoM_Z31 (referred to as Z31), from wastewater samples collected in Dalian, China. Transmission electron microscopy revealed that Z31 belongs family Myoviridae, order Caudovirales. specifically infects Shigella sonnei, dysenteriae, Escherichia coli. The is an 89,355-bp-long dsDNA molecule with a G+C ...

conclusions the overall results indicated that bacteriophages isolated from sewage exhibited excellent lytic activity against mrsa strains. in conclusion, bacteriophages can be further characterized and appear to be a promising candidate for phage therapy against mrsa in the future. results the phages exhibited good lytic activity against mrsa when tested in-vitro, and the highest activity was ...

Bacteriophages are the viruses with either DNA or RNA as the genetic material.1 Phages have a developmental cycle within the host bacteria which can be lytic or lysogenic. The lytic cycle comprises has a series of events that subsequenty release daughter phage particles. Phage for a given bacterium can be isolated wherever that bacterium grows.2 The problem is not just isolating the phage again...

The increase in antibiotic resistance world-wide revitalized the interest in the use of phage lysins to combat pathogenic bacteria. In this work, we analyzed the specific cleavage sites on the staphylococcal peptidoglycan produced by three phage lytic proteins. The investigated cell wall lytic enzymes were the endolysin LysH5 derived from the S. aureus bacteriophage vB_SauS-phi-IPLA88 (phi-IPLA...