Whole genome sequence analysis of Aeromonas-infecting bacteriophage AHPMCC7, a new species of genus Ahphunavirus and its application in Litopenaeus vannamei culture

In this study, we evaluated the efficacy of bacteriophage AHPMCC7 which was isolated by using A. hydrophila MTCC 1739 as a host. This bacteriophage exhibited 10 min latent period and burst size was 275. In liquid culture, bacteriophage AHPMCC7 could completely lyse A. hydrophila MTCC 1739 after 2 h. AHPMCC7 genome was 42,277 bp long with 58.9% G + C content. The genome consisted of 48 CDSs and no tRNA. The comparative genomic analyses clearly implied that AHPMCC7 might represent a novel species of the genus Aphunavirus under Autographiviridae family. Bacteriophage AHPMCC7 could survive at broad pH (3-10), temperature (4-37 °C), and salinity (0-40 ppt). In aquarium trial, AHPMCC7 could control A. hydrophila MTCC 1739 without affecting the survivability of Litopenaeus vannamei. Clearly, the bacteriophage AHPMCC7 might be used in shrimp aquaculture as a biocontrol agent.PMID:37774603 | DOI:10.1016/j.virol.2023.109887

Source: Virology - September 29, 2023 Category: Virology Authors: Smita Ghosh Priyanka Kar Sudipta Chakrabarti Shrabani Pradhan Keshab Chandra Mondal Kuntal Ghosh Source Type: research