Journal of fish pathology (한국어병학회지)

The Korean Society of Fish Pathology (한국어병학회)
권호 표지

Presence of low level infected iridovirus in sea perch Lateolabrax sp. imported to Korea

  • Jeong, Hyun-Do (Department of Aquatic Life Medicine, Pukyong National University) ;
  • Jeong, Joon-Bum (School of Marine Biomedical Sciences, Marine and Environmental Research Institute, Jeju National University)
  • Received : 2010.02.02
  • 심사 : 2010.04.16
  • 발행 : 2010.04.30
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초록

We have identified an iridovirus CH-1 from sea perch Lateolabrax sp. healthy externally and imported from China to Korea. In a comparison of the nucleotide sequences of the five different genomic regions, the CH-1 appears to be closely related to the ISKNV, IVS-1 and Ehime-1 strains detected in China, Korea and Japan respectively. In quantitative comparison of the viral DNA, level of CH-1 in tissue of imported fish was 10,000 times lower than that of IVS-1 strain presented in the infected rock bream Oplegnathus fasciatus of moribund stage. It allowed us to speculate the possibility of the asymtomatic iridovirus infection in the culturing sea perch. Such possibility of asymptomatic infection was supported by result of no appearance of dead fish with typical symptoms of iridoviral disease in keeping experiment of the imported sea pearch in laboratory for more than three weeks. Such asymptomatic infections with iridovirus were also found in spleen of the culturing and externally healthy sea perch of Korea by the presence of the iridoviral DNA in nested PCR.

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참고문헌

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