Cell-lytic Activity of Tobacco BY-2 Induced by a Fungal Elicitor from Alternaria alternata Attributed to the Expression of a Class I β-1, 3-Glucanase Gene

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Stress-induced cell-lytic activity was found in tobacco BY-2 cells treated with various stresses. Among 14 stresses, an elicitor fraction isolated from <I>Alternaria alternata</I> showed the highest inducing activity. Cell-lytic activity increased for 72 h even in the control sample, treated with distilled water, and several isozymes of β-1,3-glucanases and chitinases were found to be involved in it. In contrast, cell-lytic activity in BY-2 cells treated with a fungal elicitor reached a higher level after 60 h. The principal enzymes specifically involved in this stress-induced portion are speculated to be basic β-1,3-glucanases. A class I β-1,3-glucanase gene (<I>glu1</I>) was found to be the specific gene for the stress-induced cell-lytic activity. Its expression became observable at 24 h, and the intensity reached a maximum at about 60–72 h. The <I>glu1</I> was thus assigned as a late gene. Its role in the stress response is discussed in conjunction with earlier genes such as chitinases.

収録刊行物

  • Bioscience, biotechnology, and biochemistry

    Bioscience, biotechnology, and biochemistry 68(6), 1265-1272, 2004-06-23

    公益社団法人 日本農芸化学会

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各種コード

  • NII論文ID(NAID)
    10013286539
  • 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
    6991058
  • 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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