Abstract
The family Pseudoalteromonas is highly adaptable to dissimilar ecological habitats and plays an important ecological role in the marine environment. In this study, a new Pseudoalteromonas phage PH1 was isolated from the Yellow Sea. To better understand the bacteriophage, its biological properties, including morphology, host range, growth phenotype, thermal and pH stability, and nucleic acid composition, were investigated in detail. The result showed that the phage PH1 is a Podoviridae-phage with an icosahedral head (60nm of diameter) and a short tail (26nm in length). The phage PH1 genome consists of 42,685bp length double-stranded DNA with a G+C content of 42.24% and is predicted to have 55 open reading frames (ORFs) with an average length of 740bp nucleotides each. The phage PH1 genome adds a new Podoviridae-phage genome to marine bacteriophage dataset, which will provide useful basic information for further molecular research on interaction mechanisms between bacteriophages and their hosts.
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