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Development of a genotyping assay and characterization of Kudoa septempunctata

Research Project

Project/Area Number 25850139
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Aquatic bioproduction science
Research InstitutionJapan Fisheries Research and Education Agency

Principal Investigator

Mekata Tohru  国立研究開発法人水産総合研究センター, 増養殖研究所, 研究員 (40597944)

Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsクドア・セプテンプンクタータ / モノクローナル抗体 / 酵素活性 / 遺伝子型別 / クドア / 遺伝子型 / 抗体 / 遺伝子解析 / 魚病 / ヒラメ
Outline of Final Research Achievements

Transcriptome data of Kudoa septempunctata (Ks) was obtained by next-generation sequencing. EF1-α and Hsp83 of Ks shared the highest identity to EF1-α of threadworm and Hsp90 of flatworm, respectively. The enzymatic activities were investigated using APIZYM. Positive signals were observed for leucine arylamidase, acid phosphatase and naphthol-AS-BI-phosphohydrolase.
The production of a monoclonal antibody was attempted. Mice were injected with an emulsion containing spores. The fusion of lymphocytes with myeloma cells produced 48 hybridoma lines, of which two were selected on the basis of their reactivity.
The sequencing analysis of mitochondrial DNA revealed the presence of genetic polymorphisms of Ks. Four genotypes were identified based on a PCR-RFLP assay. The genotyping analysis of 32 specimens were revealed that all genotypes were found in domestic samples, and appearance frequency of each genotype were regionally uneven, whereas only genotype II was found in oversea sample.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (6 results)

All 2015 2014

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (5 results)

  • [Journal Article] New Validated Rapid Screening Methods for Identifying <i>Kudoa septempunctata</i> in Olive Flounder (<i>Paralichthys olivaceus</i>)2015

    • Author(s)
      Sugita-Konishi Y, Fukuda Y, Mori K, Mekata T, Namba T, Kuroda M, Yamazaki A, Ohnishi T.
    • Journal Title

      Japanese Journal of Infectious Diseases

      Volume: 68 Issue: 2 Pages: 145-147

    • DOI

      10.7883/yoken.JJID.2014.133

    • NAID

      130004757133

    • ISSN
      1344-6304, 1884-2836
    • Related Report
      2015 Annual Research Report 2014 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Production of monoclonal antibody against Kudoa septempunctata2014

    • Author(s)
      T Mekata, Jun Satoh, T Nishioka
    • Organizer
      第9回アジア魚病学会
    • Place of Presentation
      ホーチミン、ベトナム
    • Year and Date
      2014-11-25
    • Related Report
      2014 Research-status Report
  • [Presentation] ヒラメ筋肉に寄生する粘液胞子虫 Kudoa septempunctataの感染防除法に関する検討2014

    • Author(s)
      西岡 豊弘,佐藤 純,米加田 徹,森 広一郎,太田 健吾,森岡 泰三,呂 明媚,横山 博,良永 知義
    • Organizer
      日本魚病学会秋季大会
    • Place of Presentation
      九州大学
    • Year and Date
      2014-09-22
    • Related Report
      2014 Research-status Report
  • [Presentation] LAMP法を用いたヒラメ粘液微胞子虫Kudoa septempunctataの検出法の開発2014

    • Author(s)
      引間順一,河野智哉,児玉ひろの,Gouranga Biswas,米加田 徹,酒井正博
    • Organizer
      平成26年度日本魚病学会春季大会
    • Place of Presentation
      函館国際ホテル
    • Related Report
      2013 Research-status Report
  • [Presentation] ヒラメの筋肉寄生粘液胞子虫Kudoa septempunctataの感染動態と感染時期の推定2014

    • Author(s)
      横山 博,呂 明媚,良永知義,森 広一郎,佐藤 純,米加田 徹
    • Organizer
      平成26年度日本魚病学会春季大会
    • Place of Presentation
      函館国際ホテル
    • Related Report
      2013 Research-status Report
  • [Presentation] ヒラメに寄生するクドア セプテンプンクタタの新しいスクリーニング検査法と妥当性評価2014

    • Author(s)
      小西良子,石﨑直人,森 広一郎,米加田 徹,福田 穣,木本圭輔,吉岡左織,難波豊彦,大西貴弘
    • Organizer
      平成26年度日本水産学会春季大会
    • Place of Presentation
      北海道大学(函館キャンパス)
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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