<P><B>Abstract</B></P> <P> <I>Enteromyxum leei</I> and <I>Parvicapsula anisocaudata</I> have been reported to cause emaciation disease in cultured olive flounder <I>Paralichthys olivaceus<...
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https://www.riss.kr/link?id=A107447768
2018
-
SCI,SCIE,SCOPUS
학술저널
18-25(8쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
<P><B>Abstract</B></P> <P> <I>Enteromyxum leei</I> and <I>Parvicapsula anisocaudata</I> have been reported to cause emaciation disease in cultured olive flounder <I>Paralichthys olivaceus<...
<P><B>Abstract</B></P> <P> <I>Enteromyxum leei</I> and <I>Parvicapsula anisocaudata</I> have been reported to cause emaciation disease in cultured olive flounder <I>Paralichthys olivaceus</I> in Jeju Island, Korea, but there is no consensus regarding its causative agent. A total of 60 cultured olive flounders were obtained from 12 fisheries, and divided into 5 groups according to their relative condition factor. We investigated the correlation between the relative condition factor and parasite infection using molecular diagnostics to identify the etiological agent of the emaciation disease. Metagenome results showed that, in addition to olive flounder genes, the myxosporean gene was the most abundant in the intestine and urinary bladder. The results of multiplex PCR assay revealed high levels of detection of <I>E. leei</I> genes in the intestines of samples having a relative condition factor <70% whereas the gene of <I>P. anisocaudata</I> was detected at high levels in the urinary bladders of all sample groups. In addition, statistical analyses indicated a significant association between decrease in relative condition factor and <I>E. leei</I> infection but not <I>P. anisocaudata</I> infection. We suggest that the emaciation disease is caused by <I>E. leei</I> and the parasite decrease relative condition factor to <70%.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Emaciation disease in cultured olive flounder of Korea is a notorious disease. </LI> <LI> The causative agents were identified using molecular diagnostic tools. </LI> <LI> Two myxosporeans were recognized as potential etiological agent. </LI> <LI> Infection with <I>Enteromyxum leei</I> decreases rCF of cultured olive flounders. </LI> </UL> </P>