Change of pathogenicity in Olive flounder Paralichthys olivaceus by co-infection of Vibrio harveyi, Edwardsiella tarda and marine birnavirus

Oh, Myung‐Joo; Kim, Wi‐Sik; Kitamura, Shin-Ichi; Lee, Hun-Ku; Son, Byeng Wha; Jung, Tae‐Sung; Jung, Sung‐Ju

doi:10.1016/j.aquaculture.2006.03.009

Cited by 36 publications

(18 citation statements)

References 8 publications

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“…The economic loss from diseases of olive flounder has increased, including infections with Edwardsiella tarda , Streptococcus parauberis , Vibrio harveyi , Miamiensis avidus , viral haemorrhagic septicaemia virus and Megalocytivirus (Oh et al . ,b; Jung et al . ; Kim et al .…”

Section: Introductionmentioning

confidence: 99%

Low pathogenicity of flounder iridovirus (FLIV) and the absence of cross‐protection between FLIV and rock bream iridovirus

Jung

Lee

Jung

2016

Journal of Fish Diseases

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The genus Megalocytivirus is known to infect a wide range of cultured marine fish. In this study, we examined the pathogenicity of FLIV (Megalocytivirus from olive flounder, genotype III) and RBIV (Megalocytivirus from rock bream, genotype I) to their homologous and heterologous host species. Olive flounder (7.5 ± 1.3 cm) injected with FLIV [major capsid protein (MCP) gene copies, 6.8 × 10 -6.5 × 10 /fish] at 24 °C did not die until 90 days post-infection (dpi). The average virus replication in the spleen peaked (1.27 × 10 /fish) at 20 dpi. Rock bream (6.5 ± 1.5 cm) injected with FLIV (8.8 × 10 and 6.5 × 10 /fish of MCP copies) showed no mortality until 50 dpi. The rock bream that survived after FLIV infection were rechallenged with RBIV at 50 dpi had 100% mortality, showing that there is no cross-protection between FLIV and RBIV. Temperature shifting (26 °C and 20 °C at 12 h intervals) did not cause FLIV-specific mortality into olive flounder, but higher virus copies were observed in the fish exposed to higher stocking density. This study demonstrates that FLIV and RBIV have different antigenic and pathogenic characteristics and that FLIV has low pathogenicity to olive flounder.

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Section: Introductionmentioning

confidence: 99%

Low pathogenicity of flounder iridovirus (FLIV) and the absence of cross‐protection between FLIV and rock bream iridovirus

Jung

Lee

Jung

2016

Journal of Fish Diseases

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“…In our previous study, MABV alone did not cause mortality in 68~99 g fish, similar to other studies. However, when fish with MABV were coinfected with bacteria such as Vibrio harveyi and Edwardsiella tarda, the mortality was higher than only for bacterial infection (Oh et al, 2006b). Therefore, although MABV alone is not regarded as a serious pathogen of fish over 10 g, careful attention is needed to understand the effect of coinfection in fish.…”

Section: Nc1mentioning

confidence: 97%

Distribution of marine birnavirus in cultured olive flounder Paralichthys olivaceus in Korea

et al. 2008

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Surveys of marine birnavirus (MABV) were undertaken in cultured olive flounder Paralichthys olivaceus from the south and west coastal areas and Jeju in Korea during the period January 1999 to April 2007. MABV was detected in all seasons from the fry, juveniles and adult fish from the areas examined. Evident cytopathic effects of the virus including rounding and cell lysis were observed in chinook salmon embryo (CHSE-214) and rainbow trout gonad (RTG-2) cells, but not in fathead minnow (FHM) and epithelial papilloma of carp (EPC) cells. Nucleotide sequences of the VP2/NS junction region of the Korean isolates showed 97.8% ~ 100% similarity, and they belonged to the same genogroup. Cross neutralization tests with serotype-specific rabbit antisera against MABV strains exhibited a close antigenic relationships between strains, and were distinct from infectious pancreatic necrosis virus (IPNV) strains. Coinfection of MABV with bacteria (Streptococcus iniae, Vibrio spp.) and viruses (nervous necrosis virus, lymphocystis disease virus, viral hemorrhagic septicemia virus) was observed.

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“…In olive flounder scuticociliatosis first reported in South Korea during 1990 has soon become a challenging disease with no effective control [26]. The disease inflicted severe mass mortality after year 1995, in many commercial flounder farms in Jeju Island wiping out as much as 60% of the farmed flounder [1,3,5] infected with three major scuticociliates species comprising P. dicentrarchi, Miamiensis avidus, and U. marinum (Table 1). …”

Section: Diversity Of Scuticociliatesmentioning

confidence: 99%

“…The increase in production upsurged from 21,368 to 28,000 metric tonnes in 1998 and 2000, respectively [3,4] produced from about 300 commercial farms situated in Jeju Island, South Korea. However these farms experience increasingly high mass mortalities [1,3,5].…”

Section: Introductionmentioning

confidence: 99%

Scuticociliatosis and its recent prophylactic measures in aquaculture with special reference to South Korea

Harikrishnan

Balasundaram

Heo

2010

Fish & Shellfish Immunology

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Change of pathogenicity in Olive flounder Paralichthys olivaceus by co-infection of Vibrio harveyi, Edwardsiella tarda and marine birnavirus

Cited by 36 publications

References 8 publications

Low pathogenicity of flounder iridovirus (FLIV) and the absence of cross‐protection between FLIV and rock bream iridovirus

Low pathogenicity of flounder iridovirus (FLIV) and the absence of cross‐protection between FLIV and rock bream iridovirus

Distribution of marine birnavirus in cultured olive flounder Paralichthys olivaceus in Korea

Scuticociliatosis and its recent prophylactic measures in aquaculture with special reference to South Korea

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