海域で形成された微生物フィルムに対するタテジマフジツボ幼生の付着 Larval settlement of the barnacle Amphibalanus amphitrite in response to microbial films in the sea

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Microbial biofilms were allowed to develop on glass slides immersed 1.5 m below the sea surface in Tachibana Bay, Nagasaki, Japan, for different periods of time from May, 1999, to March, 2001. Effects of age or bacterial and diatom densities of the biofilms on the settlement of cyprids of the barnacle <i>Amphibalanus amphitrite</i> were investigated in the laboratory. Furthermore, biofilms were subjected to various treatments in order to investigate the nature of the chemical cue for settlement. Cyprids of <i>A. amphitrite</i> responded differently to various biofilms. Of the 58 biofilms tested, 3 induced settlement of <i>A. amphitrite</i> larvae, while 4 significantly inhibited it. The other 51 films had no effect on larval settlement. No positive correlation was observed between age or bacterial and diatom densities of biofilms and their respective capacities to induce larval settlement. Inactivation of biofilms by ethanol and heat treatments resulted in the induction of larval settlement, suggesting that the treatments made a potential settlement cue in the films available to <i>A. amphitrite</i> larvae. Moreover, LCA (lentil agglutinin), WGA (wheat germ agglutinin), and H<sub>5</sub>IO<sub>6</sub> treatment of active biofilms resulted in the reduction their settlement-inducing activity. This finding suggested that the settlement-inducing compound in certain marine biofilms contains specific sugar chains that have similarities to the SIPC (Settlement-Inducing Protein Complex) from adult barnacle shells.

収録刊行物

  • Sessile organisms  

    Sessile organisms 25(1), 31-36, 2008-02-29 

    日本付着生物学会

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各種コード

  • NII論文ID(NAID)
    10021215908
  • NII書誌ID(NCID)
    AN10563630
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    13424181
  • NDL 記事登録ID
    9434730
  • NDL 雑誌分類
    ZR4(科学技術--生物学--動物)
  • NDL 請求記号
    Z18-1319
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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