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<p><i>Klebsiella pneumoniae</i> is an opportunistic pathogen that is commonly associated with pulmonary infections. It is of particular concern due to its increasing resistance to antibiotics, particularly carbapenem. Alternative treatments for these bacterial infections are required, and phage application is an attractive option. In this study, we isolated two novel <i>Klebsiella pneumonia</i> bacteriophages from wastewater, vB_Kpn_Lilla1 and vB_Kpn_Lilla2, both of which have lytic activity against <i>Klebsiella oxytoca</i> and <i>Klebsiella michiganensis</i>. Genome sequencing and phylogenetic analysis revealed that both phages belong to the family <i>Straboviridae</i>, with vB_Kpn_Lilla1 belonging to the genus <i>Jiaodavirus</i> and vB_Kpn_Lilla2 belonging to the genus <i>Slopekvirus</i>. Growth kinetics showed an effective reduction of <i>K. pneumoniae</i> populations when infected with either phage.</p>

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Isolation and characterisation of Klebsiella pneumoniae bacteriophages vB_Kpn_Lilla1 and vB_Kpn_Lilla2

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年7月29日

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  • Timothy Martin,
  • Liana Theodoridis,
  • Emma Stent,
  • Julia Lilla,
  • Steve Petrovski

摘要

Klebsiella pneumoniae is an opportunistic pathogen that is commonly associated with pulmonary infections. It is of particular concern due to its increasing resistance to antibiotics, particularly carbapenem. Alternative treatments for these bacterial infections are required, and phage application is an attractive option. In this study, we isolated two novel Klebsiella pneumonia bacteriophages from wastewater, vB_Kpn_Lilla1 and vB_Kpn_Lilla2, both of which have lytic activity against Klebsiella oxytoca and Klebsiella michiganensis. Genome sequencing and phylogenetic analysis revealed that both phages belong to the family Straboviridae, with vB_Kpn_Lilla1 belonging to the genus Jiaodavirus and vB_Kpn_Lilla2 belonging to the genus Slopekvirus. Growth kinetics showed an effective reduction of K. pneumoniae populations when infected with either phage.