Enhanced high temperature tolerance in transgenic rice seedlings with elevated levels of alternative oxidase, OsAOX1a

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The cyanide-insensitive alternative oxidase (AOX) respiratory pathway can reduce the excessive production of reactive oxygen species. Here we showed that transgenic rice seedlings transformed with <i>OsAOX1a</i> for rice alternative oxidase under the control of ubiquitin promoter exhibited thermotolerance after acute exposure, 41–45°C for 10 min, or chronic exposure, 37°C for up to 8 days. In contrast, these high temperature stresses resulted in significant growth inhibition in wild-type and transgenic plants with antisense <i>OsAOX1a</i>. The enhanced tolerance was significant in shoot growth, suggesting that the increased levels of AOX protein would dissipate the excess reductants produced in the chloroplasts suffering from oxidative damage due to high temperature stress.

収録刊行物

  • Plant biotechnology  

    Plant biotechnology 25(4), 361-364, 2008-09-01 

    Japanese Society for Plant Cell and Molecular Biology

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各種コード

  • NII論文ID(NAID)
    10021914165
  • NII書誌ID(NCID)
    AA11250821
  • 本文言語コード
    ENG
  • 資料種別
    SHO
  • ISSN
    13424580
  • NDL 記事登録ID
    9558251
  • NDL 雑誌分類
    ZR3(科学技術--生物学--植物)
  • NDL 請求記号
    Z54-J126
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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