Characterization and genome analysis of a novel phage BP15 infecting Vibrio parahaemolyticus

Abstract Vibrio parahaemolyticus is pathogenic to both humans and marine animals. Antimicrobial-resistant (AMR) bacteria have been reported to cause mortalities in shrimp, with phage therapy presenting an alternative and eco-friendly biocontrol strategy for controlling bacterial diseases. Therefore,...

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Main Authors: Te-Ken Hsu, Yi-Yin Chen, Shiao-Wen Li, Hui-Yu Shih, Hsin-Yiu Chou, Jeff Chia-Kai Hsu, Han-Ching Wang, Li-Li Chen
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-85513-1
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author Te-Ken Hsu
Yi-Yin Chen
Shiao-Wen Li
Hui-Yu Shih
Hsin-Yiu Chou
Jeff Chia-Kai Hsu
Han-Ching Wang
Li-Li Chen
author_facet Te-Ken Hsu
Yi-Yin Chen
Shiao-Wen Li
Hui-Yu Shih
Hsin-Yiu Chou
Jeff Chia-Kai Hsu
Han-Ching Wang
Li-Li Chen
author_sort Te-Ken Hsu
collection DOAJ
description Abstract Vibrio parahaemolyticus is pathogenic to both humans and marine animals. Antimicrobial-resistant (AMR) bacteria have been reported to cause mortalities in shrimp, with phage therapy presenting an alternative and eco-friendly biocontrol strategy for controlling bacterial diseases. Therefore, this study aimed to isolate and characterize phages for their applicability in lysing Vibrio parahaemolyticus. A novel phage vB_VpaS_BP15 (BP15) belonged to the subfamily Queuovirinae with an icosahedral head measuring 69.11 ± 5.38 nm in length and 65.40 ± 6.89 nm in width, and a non-contractile sheathed tail measuring 139.81 ± 14.79 nm. The one-step growth curve indicated a latent period of 30 min and a burst size of 120 PFUs per cell. Phage BP15 exhibited tolerance to a range of temperatures and pH values. Infection dynamic curves demonstrated that BP15 was highly effective against BCRC12959 at MOIs ranging from 0.01 to 10; even at a low multiplicity of infection (MOI) of 0.001, BP15 still caused growth retention. Phage BP15 possessed a circular double-stranded DNA of 59,584 bp with a G + C content of 46.7% and lacked tRNA genes, virulence genes, and lysogeny genes. These findings highlight the promising potential of phage BP15 as a biocontrol agent against Vibrio parahaemolyticus in Taiwan.
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spelling doaj-art-2c89309265144a0a9697069ec2493a032025-01-26T12:26:05ZengNature PortfolioScientific Reports2045-23222025-01-0115111310.1038/s41598-025-85513-1Characterization and genome analysis of a novel phage BP15 infecting Vibrio parahaemolyticusTe-Ken Hsu0Yi-Yin Chen1Shiao-Wen Li2Hui-Yu Shih3Hsin-Yiu Chou4Jeff Chia-Kai Hsu5Han-Ching Wang6Li-Li Chen7Institute of Marine Biology, National Taiwan Ocean UniversityGraduate Institute of Immunology, College of Medicine, National Taiwan UniversityDepartment of Life Sciences, National University of KaohsiungInstitute of Marine Biology, National Taiwan Ocean UniversityDepartment of Aquaculture, National Taiwan Ocean UniversityInstitute of Marine Biology, National Taiwan Ocean UniversityDepartment of Biotechnology and Bioindustry Sciences, College of Biosciences and Biotechnology, National Cheng Kung UniversityInstitute of Marine Biology, National Taiwan Ocean UniversityAbstract Vibrio parahaemolyticus is pathogenic to both humans and marine animals. Antimicrobial-resistant (AMR) bacteria have been reported to cause mortalities in shrimp, with phage therapy presenting an alternative and eco-friendly biocontrol strategy for controlling bacterial diseases. Therefore, this study aimed to isolate and characterize phages for their applicability in lysing Vibrio parahaemolyticus. A novel phage vB_VpaS_BP15 (BP15) belonged to the subfamily Queuovirinae with an icosahedral head measuring 69.11 ± 5.38 nm in length and 65.40 ± 6.89 nm in width, and a non-contractile sheathed tail measuring 139.81 ± 14.79 nm. The one-step growth curve indicated a latent period of 30 min and a burst size of 120 PFUs per cell. Phage BP15 exhibited tolerance to a range of temperatures and pH values. Infection dynamic curves demonstrated that BP15 was highly effective against BCRC12959 at MOIs ranging from 0.01 to 10; even at a low multiplicity of infection (MOI) of 0.001, BP15 still caused growth retention. Phage BP15 possessed a circular double-stranded DNA of 59,584 bp with a G + C content of 46.7% and lacked tRNA genes, virulence genes, and lysogeny genes. These findings highlight the promising potential of phage BP15 as a biocontrol agent against Vibrio parahaemolyticus in Taiwan.https://doi.org/10.1038/s41598-025-85513-1Vibrio parahaemolyticusPhagePhage therapyVibriosisAquaculture
spellingShingle Te-Ken Hsu
Yi-Yin Chen
Shiao-Wen Li
Hui-Yu Shih
Hsin-Yiu Chou
Jeff Chia-Kai Hsu
Han-Ching Wang
Li-Li Chen
Characterization and genome analysis of a novel phage BP15 infecting Vibrio parahaemolyticus
Scientific Reports
Vibrio parahaemolyticus
Phage
Phage therapy
Vibriosis
Aquaculture
title Characterization and genome analysis of a novel phage BP15 infecting Vibrio parahaemolyticus
title_full Characterization and genome analysis of a novel phage BP15 infecting Vibrio parahaemolyticus
title_fullStr Characterization and genome analysis of a novel phage BP15 infecting Vibrio parahaemolyticus
title_full_unstemmed Characterization and genome analysis of a novel phage BP15 infecting Vibrio parahaemolyticus
title_short Characterization and genome analysis of a novel phage BP15 infecting Vibrio parahaemolyticus
title_sort characterization and genome analysis of a novel phage bp15 infecting vibrio parahaemolyticus
topic Vibrio parahaemolyticus
Phage
Phage therapy
Vibriosis
Aquaculture
url https://doi.org/10.1038/s41598-025-85513-1
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