FLO11 Is the Primary Factor in Flor Formation Caused by Cell Surface Hydrophobicity in Wild-Type Flor Yeast

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Some strains of <I>Saccharomyces cerevisiae</I> form a biofilm called a "flor" on the surface of wine after ethanolic fermentation, but the molecular mechanism of flor formation by the wild-type flor strain involved in wine making is not clear. Previously, we found that expression of the C-terminally truncated form of <I>NRG1</I> (<I>NRG1</I><SUP>1-470</SUP>) on a multicopy plasmid increases the hydrophobicity of the cell surface, conferring flor formation on the non-flor laboratory strain. Here we show that in Ar5-H12, a wild-type flor haploid strain, flor formation is regulated by <I>NRG1</I><SUP>1-470</SUP>. Moreover, the disruptant of the wild-type flor diploid strain (Δ<I>flo11</I>/Δ<I>flo11</I>) show a weak ability to form the flor. The expression of <I>FLO11</I> is always high in the wild-type flor strain, regardless of carbon source. Thus <I>FLO11</I> is primary factor for wild-type flor strains. Furthermore, the disruptant (Δ<I>flo11</I>) shows lower hydrophobicity of cell surface than the wild type. However, the hydrophobicity of the wild-type flor strains grown in ethanol medium was much higher than those grown in glucose medium. These results indicate that cell surface hydrophobicity is closely related to flor formation in wild-type flor yeasts.

収録刊行物

  • Bioscience, biotechnology, and biochemistry  

    Bioscience, biotechnology, and biochemistry 70(3), 660-666, 2006-03-23 

    Japan Society for Bioscience, Biotechnology, and Agrochemistry

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各種コード

  • NII論文ID(NAID)
    10018533445
  • NII書誌ID(NCID)
    AA10824164
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09168451
  • NDL 記事登録ID
    7871887
  • NDL 雑誌分類
    ZR7(科学技術--農林水産--農産) // ZR2(科学技術--生物学--生化学) // ZP1(科学技術--化学・化学工業)
  • NDL 請求記号
    Z53-G223
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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