Details

Autor(en) / Beteiligte

• Zhao, Jiangtao
• Zhang, Zheng
• Tian, Changyu
• Chen, Xiao
• Hu, Lingfei
• Wei, Xiao
• Li, Huan
• Lin, Weishi
• Jiang, Aimin
• Feng, Ruo
• Yuan, Jing
• Yin, Zhe
• Zhao, Xiangna

Titel

Characterizing the Biology of Lytic Bacteriophage vB_EaeM_φEap-3 Infecting Multidrug-Resistant Enterobacter aerogenes

Ist Teil von

• Frontiers in microbiology, 2019-03, Vol.10, p.420-420

Ort / Verlag

Switzerland: Frontiers Media S.A

Erscheinungsjahr

2019

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• Carbapenem-resistant strains are a major clinical problem because of the lack of effective alternative antibiotics. However, viruses that lyze bacteria, called bacteriophages, have potential therapeutic applications in the control of antibiotic-resistant bacteria. In the present study, a lytic bacteriophage specific for isolates, designated vB_EaeM_φEap-3, was characterized. Based on transmission electron microscopy analysis, phage vB_EaeM_φEap-3 was classified as a member of the family (order, ). Host range determination revealed that vB_EaeM_φEap-3 lyzed 18 of the 28 strains tested, while a one-step growth curve showed a short latent period and a moderate burst size. The stability of vB_EaeM_φEap-3 at various temperatures and pH levels was also examined. Genomic sequencing and bioinformatics analysis revealed that vB_EaeM_φEap-3 has a 175,814-bp double-stranded DNA genome that does not contain any genes considered undesirable for the development of therapeutics (e.g., antibiotic resistance genes, toxin-encoding genes, integrase). The phage genome contained 278 putative protein-coding genes and one tRNA gene, tRNA-Met (AUG). Phylogenetic analysis based on large terminase subunit and major capsid protein sequences suggested that vB_EaeM_φEap-3 belongs to novel genus "Kp15 virus" within the T4-like virus subfamily. Based on host range, genomic, and physiological parameters, we propose that phage vB_EaeM_φEap-3 is a suitable candidate for phage therapy applications.