NDLI: Characterization of a New Plasmid-Like Prophage in a Pandemic Vibrio parahaemolyticus O3:K6 Strain ▿ †

Content Provider	PubMed Central
Author	Lan, Shih-feng Huang, Chung-ho Chang, Chuan-hsiung Liao, Wei-chao Lin, I-hsuan Jian, Wan-neng Wu, Yueh-gin Chen, Shau-yan Wong, Hin-chung
Abstract	Vibrio parahaemolyticus is a common food-borne pathogen that is normally associated with seafood. In 1996, a pandemic O3:K6 strain abruptly appeared and caused the first pandemic of this pathogen to spread throughout many Asian countries, America, Europe, and Africa. The role of temperate bacteriophages in the evolution of this pathogen is of great interest. In this work, a new temperate phage, VP882, from a pandemic O3:K6 strain of V. parahaemolyticus was purified and characterized after mitomycin C induction. VP882 was a Myoviridae bacteriophage with a polyhedral head and a long rigid tail with a sheath-like structure. It infected and lysed high proportions of V. parahaemolyticus, Vibrio vulnificus, and Vibrio cholerae strains. The genome of phage VP882 was sequenced and was 38,197 bp long, and 71 putative open reading frames were identified, of which 27 were putative functional phage or bacterial genes. VP882 had a linear plasmid-like genome with a putative protelomerase gene and cohesive ends. The genome does not integrate into the host chromosome but was maintained as a plasmid in the lysogen. Analysis of the reaction sites of the protelomerases in different plasmid-like phages revealed that VP882 and ΦHAP-1 were highly similar, while N15, ΦKO2, and PY54 made up another closely related group. The presence of DNA adenine methylase and quorum-sensing transcriptional regulators in VP882 may play a specific role in this phage or regulate physiological or virulence-associated traits of the hosts. These genes may also be remnants from the bacterial chromosome following transduction.
Related Links	http://dx.doi.org/10.1128/aem.02483-08
Ending Page	2667
Page Count	9
Starting Page	2659
File Format	PDF
ISSN	00992240
e-ISSN	10985336
Journal	Applied and Environmental Microbiology
Issue Number	9
Volume Number	75
Language	English
Publisher	American Society for Microbiology (ASM)
Publisher Date	2009-05-01
Access Restriction	Open
Rights Holder	American Society for Microbiology (ASM)
Subject Keyword	Biotechnology Food Science Ecology Applied Microbiology and Biotechnology Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Ecology Food Science Applied Microbiology and Biotechnology Biotechnology

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