Characterization of a novel phage vB_Pae_HB2107-3I that infects Pseudomonas aeruginosa.

Jiuna Kong, Guanhua Xuan, Hong Lin, Jingxue Wang

Molecular genetics and genomics : MGG 2023 Sep

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Bacteriophages are potential antibiotic substitutes for the treatment of antibiotic resistant bacteria. Here, we report the genome sequences of a double-stranded DNA podovirus vB_Pae_HB2107-3I against clinical multi-drug resistant Pseudomonas aeruginosa. Phage vB_Pae_HB2107-3I remained stable over a wide range of temperatures (37-60 °C) and pH values (pH 4-12). At MOI of 0.01, the latent period of vB_Pae_HB2107-3I was 10 min, and the final titer reached about 8.1 × 109 PFU/mL. The vB_Pae_HB2107-3I genome is 45,929 bp, with an average G + C content of 57%. A total of 72 open reading frames (ORFs) were predicted, of which 22 ORFs have a predicted function. Genome analyses confirmed the lysogenic nature of this phage. Phylogenetic analysis revealed that phage vB_Pae_HB2107-3I was a novel member of Caudovirales infecting P. aeruginosa. The characterization of vB_Pae_HB2107-3I enrich the research on Pseudomonas phages and provide a promising biocontrol agent against P. aeruginosa infections. © 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.

Citation

Jiuna Kong, Guanhua Xuan, Hong Lin, Jingxue Wang. Characterization of a novel phage vB_Pae_HB2107-3I that infects Pseudomonas aeruginosa. Molecular genetics and genomics : MGG. 2023 Sep;298(5):1037-1044