Pathogenicity of the Nodavirus Detected from Diseased Sevenband Grouper Epinephelus septemfasciatus
魚病研究 33 巻 1 号
31-36 頁
1998-03 発行
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FishPathol_33_31.pdf
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全文
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タイトル ( eng ) |
Pathogenicity of the Nodavirus Detected from Diseased Sevenband Grouper Epinephelus septemfasciatus
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作成者 |
Aoki Hideo
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収録物名 |
魚病研究
Fish Pathology
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巻 | 33 |
号 | 1 |
開始ページ | 31 |
終了ページ | 36 |
抄録 |
Viral nervous necrosis (VNN) of sevenband grouper Epinephelus septemfasciatus at grow-out stages, which was characterized by upside down swimming or floating behavior, has been spreading in Japan. The present study describes pathogenicity of a nodavirus found in diseased sevenband grouper. When young sevenband grouper or juvenile redspotted grouper E. akaara were challenged by an intramuscular injection with the filtered homogenate of infected organs (brain and eye), abnormal swimming behavior and mortality were produced, but some affected fish recovered from the disease after exhibiting the characterized behavior. Necrosis and vacuolation of the brain and retinal tissues, characteristic to VNN, were produced in the dead and abnormally-swimming fish and the viral antigens were detected in the degenerated nerve cells by FAT with an anti-SJNNV (striped jack nervous necrosis virus) serum. The infection experiment with redspotted grouper also indicated that rearing water temperature (16-28°C) influenced development of the disease: higher mortality and earlier appearance of the disease signs were observed at higher water temperatures.
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著者キーワード |
nodavirus
viral nervous necrosis
VNN
sevenband grouper
Epinephelus septemfasciatus
pathogenicity
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NDC分類 |
水産業 [ 660 ]
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言語 |
英語
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資源タイプ | 学術雑誌論文 |
出版者 |
日本魚病学会
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発行日 | 1998-03 |
出版タイプ | Version of Record(出版社版。早期公開を含む) |
アクセス権 | オープンアクセス |
収録物識別子 |
[ISSN] 0388-788X
[NCID] AN00063165
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