Isolation and Characterization of v-KpPh: A Myovirus with Antimicrobial Potential against MDR Klebsiella pneumoniae | ||||
| Bulletin of Faculty of Science, Zagazig University | ||||
| Article 3, Volume 2025, Issue 3, July 2025, Page 17-37 PDF (1.93 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/bfszu.2024.331414.1436 | ||||
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| Authors | ||||
Ebtsam Saqr1; gamal eldidamony2; Ahmed Askora  3
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| 1Department of Microbiology and Botany, Faculty of Science, Zagazig University, 44519, Zagazig, Egypt. | ||||
| 2Department of Botany and Microbiology, Faculty of Science, Zagazig University, Egypt | ||||
| 3Botany and microbiology department,Faculty of science,Zagazig University | ||||
| Abstract | ||||
| This study focused on isolating, characterizing, and assessing the bacteriophage v-KpPh for its ability to target and eliminates multidrug-resistant (MDR) Klebsiella pneumoniae and its biofilm. The v-KpPh phage displayed typical Myovirus morphology, with virion particles featuring a hexagonal icosahedral head measuring 90.34 nm in diameter, a narrowed neck region of 14.60 nm, and a long tail measuring 116.34 nm in length and 21.68 nm in width. Analysis of the phage’s biological traits revealed a latent period of 25 minutes, with phage release occurring at 35 minutes and a burst size of 51 pfu per cfu. Adsorption studies indicated that the v-KpPh phage attached to host cells within 15 minutes, with an adsorption rate constant (K) of 3.37×10⁻¹¹. The phage demonstrated stability across a pH range of 4 to 11 and at temperatures between 30°C and 60°C, retaining viability for up to 8 weeks when stored at room temperature or 4°C. Additionally, at a multiplicity of infection (MOI) of 10, the phage effectively reduced biofilm biomass, indicating its capability to eliminate both MDR K. pneumoniae and its biofilm formations. | ||||
| Keywords | ||||
| Myovirus; MDR; Klebsiella pneumoniae; Biofilm | ||||
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