Improvement of nitrate- and nitrite-dependent growth of rice by the introduction of a constitutively expressing chloroplastic nitrite transporter

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Loading of cytosolic nitrite into the chloroplast in nitrate assimilation of rice was modified by introducing a gene for chloroplastic nitrite transport from cucumber. Rice (<i>Oryza sativa</i> L. japonica cv. Nipponbare) was transformed with a cDNA (<i>CsNitr1-L</i>) that encodes a nitrite transporter of cucumber under the control of the <i>CaMV35S</i> promoter. <i>CsNitr1-L</i> transgenic rice grown by hydroponics with nitrate supplied as the sole nitrogen source grew as well as plants grown with ammonia. In contrast the growth of the untransformed or mock-transformed control rice was retarded on a nitrate-containing medium by about 60% compared to plants grown with ammonia. Nitrite was not beneficial to the growth of the untransformed or mock-transformed control rice but sustained that of <i>CsNitr1-L</i> transgenic rice. Low steady-state concentration of nitrite in leaves as well as delayed non-photochemical quenching of chlorophyll fluorescence in <i>CsNitr1-L</i> transgenic rice seems indicative of higher nitrite use in chloroplasts.

収録刊行物

  • Plant biotechnology  

    Plant biotechnology 23(1), 47-54, 2006-03-01 

    Japanese Society for Plant Cell and Molecular Biology

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各種コード

  • NII論文ID(NAID)
    10021907838
  • NII書誌ID(NCID)
    AA11250821
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13424580
  • NDL 記事登録ID
    7857107
  • 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  CJP引用  NDL  J-STAGE 
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