Effect of heavy ion-beam irradiation on plant growth and mutation induction in Nicotiana tabacum

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Ion-beam mutagenesis is a highly effective way to rapidly create new cultivars. To optimize conditions for heavy ion mutagenesis, we irradiated tobacco (<i>Nicotiana tabacum</i> L.) tissues at various developmental stages with heavy ion beams of various doses and examined the effects of irradiation by monitoring plant growth and mutation induction. The effects differed among irradiated tissues. Sensitivity to heavy ion-beam irradiation increased in the following order: dry seeds, imbibed seeds, and culture tissues. We isolated three white flower mutants. One, <i>BWF1</i>, was found to be a novel mutant, in which the synthesis of proanthocyanidin was up-regulated. The others may have a mutation in some regulatory genes involved in the flavonoid biosynthetic pathway. These results suggest that the developmental state of plant tissues is critical for efficient plant mutagenesis, and that the broad spectrum of mutations may be induced by heavy ion-beam irradiation at molecular level.

収録刊行物

  • Plant biotechnology  

    Plant biotechnology 25(1), 105-111, 2008-03-01 

    Japanese Society for Plant Cell and Molecular Biology

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各種コード

  • NII論文ID(NAID)
    10021912796
  • 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
    9423569
  • 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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