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ID 25655
file
creator
Park, K.-H.
Matsuoka, Satoru
Muroga, Kiyokuni
subject
Bacteriophage
Siphoviridae
Lactococcus garvieae
Enterococcus seriolicida
Yellowtail
Seriola quinqueradiata
NDC
Zoology
abstract
A virulent bacteriophage, designated PLgY, was detected from cultures of Lactococcus garvieae (formerly Enterococcus seriolicida) isolated from diseased yellowtail Seriola quinqueradiata. The phage had an isometric head measuring 50 to 60 nm, a thin flexible tail of 7 × 140-180 nm, and the genome consisting of double stranded DNA, indicating that PLgY is a member of the family Siphoviridae. Of 26 strains of L. garvieae examined, 24 were sensitive to the phage but 2 strains of L. garvieae and another 22 strains of bacteria including fish and shellfish-pathogenic bacteria were not. Lysis of L. garvieae cells due to the phage infection was dependent on culture temperature and occurred at between 17 and 29°C. Although an infection experiment of young yellowtail revealed that the 2 phage-insensitive L. garvieae strains were less virulent than 2 phage-sensitive strains, there was no correlation between phage sensitivity and antigenic variation.
journal title
Diseases of Aquatic Organisms
volume
Volume 29
issue
Issue 2
start page
145
end page
149
date of issued
1997-05-22
publisher
Inter-Research
issn
0177-5103
1616-1580
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 1997 Inter-Research.
relation url
department
Graduate School of Biosphere Science