JP5386208B2 - フジツボ類キプリス幼生の生理活性判定方法 - Google Patents
フジツボ類キプリス幼生の生理活性判定方法 Download PDFInfo
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Description
本発明に係る「生理活性判定方法」は、フジツボ類キプリス幼生に対して励起光を照射する工程と、照射された前記キプリス幼生が発光する蛍光分布パターンを検出する工程とを含む。ここで、「生理活性」とはフジツボ類の健康状態のレベルのことであり、例えば、フジツボ類が弱ると生理活性が低下し、フジツボ類が死ぬと生理活性は無くなる。したがって、生理活性をフジツボ類が健康であるか否か、あるいは生理的に正常であるか否かを示す指標に用いることができる。
このようなフジツボ類キプリス幼生の生理活性判定方法を用いて、フジツボ類キプリス幼生の駆除剤候補物質をスクリーニングし、駆除剤を特定することができる。
人工飼育タテジマフジツボ、あるいは、シロスジフジツボから孵出したノープリウス幼生を回収し、1Lビーカー内海水中(約23℃)でキプリス幼生まで飼育した。このキプリス幼生を6.5℃のろ過海水内でさらに数日維持した。
6穴プレートに50ppm硫酸銅添加ろ過海水を入れ、上記各種のフジツボキプリス幼生を投入し、8時間薬剤暴露処理を行った。このキプリス幼生をろ過海水で数回洗浄した後、ろ過海水を入れた24穴プレートの各穴に一個体ずつを収容し、幼生の変態および蛍光顆粒の分布の変化を落射蛍光実態顕微鏡下で観察した。対照群として、未処理の各フジツボキプリス幼生を同様にろ過海水中で飼育し、観察した。励起波長は400〜440nm、吸収波長は475nm以上を用いた。なお、硫酸銅は従来からフジツボ類防除剤として用いられている(特開2003−146811)。
2 第一触角
3 胸肢
4 セメント腺
5 セメント管
6 油細胞
7 複眼
8 胸部
Claims (6)
- フジツボ類キプリス幼生に対して励起光を照射する工程と、
照射された前記キプリス幼生が発光する自家蛍光分布パターンを検出する工程と、
前記照射されたキプリス幼生が発光する自家蛍光分布パターンが、前記キプリス幼生の種に特異的な自家蛍光分布パターンと異なるパターンであるかどうかを判断する工程と、
を含むフジツボ類キプリス幼生の生理活性判定方法。 - フジツボ類キプリス幼生に対して励起光を照射する工程と、
照射された前記キプリス幼生が発光する自家蛍光分布パターンを検出する工程と、
前記照射されたキプリス幼生が発光する自家蛍光分布パターンが、前記幼生の体から消失しているか否かを判断する工程と、
を含むフジツボ類キプリス幼生の生理活性判定方法。 - 前記励起光の波長が330〜385nm、400〜440nm、あるいは、460〜490nmであり、照射された前記キプリス幼生が発光する蛍光の吸収波長がそれぞれ420nm以上、475nm以上、510nm以上であることを特徴とする請求項1または2に記載のフジツボ類キプリス幼生の生理活性判定方法。
- 前記フジツボ類が、タテジマフジツボ、アメリカフジツボ、アカフジツボ、サンカクフジツボ、オオアカフジツボ、サラサフジツボ、イワフジツボ、シロスジフジツボ、およびヨーロッパフジツボから成る群から選ばれることを特徴とする請求項1〜3のいずれか1項に記載のフジツボ類キプリス幼生の生理活性判定方法。
- 照射された前記キプリス幼生が発光する蛍光分布パターンをデジタル画像情報としてコンピュータに取り込み、この情報をコンピュータにあらかじめ登録しておいた蛍光分布パターン認識情報と比較することにより、前記フジツボ類の生理活性を判定することを特徴とする請求項1〜4のいずれか1項に記載のフジツボ類キプリス幼生の生理活性判定方法。
- フジツボ類キプリス幼生の駆除剤候補物質のスクリーニング方法であって、
前記駆除剤候補物質で前記フジツボ類キプリス幼生を処理し、請求項1〜5のいずれかに記載の方法によって前記フジツボ類キプリス幼生の生理活性を判定することを特徴とする方法。
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