Jasmonate-induced 23kD protein, JIP-23, is involved in seed development of barley

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We previously showed the high expression of a 23 kD protein (P23k) in germinating barley seeds. In this study, we examined whether P23k is involved in supplying sugar to developing barley grains. RT-PCR analysis revealed that, although P23k expression was not detectable in developing grain, the 23 kD jasmonate-induced protein (JIP-23) exhibited a high level of RNA expression. JIP-23 belongs to the same protein family as P23k. Its remarkable expression was specifically confirmed at early development stage when sugar import into the filling grains is active. Furthermore, <i>in situ</i> hybridization and immunohistochemistry showed that JIP-23 is localized to active tissues in sugar import, such as vascular tissues, nucellar projections, endosperm transfer cells, and inter nucellar cells. Taken together, these results suggest that JIP-23 is related to sugar import into filling grain of developing barley seeds. Hence, we propose that jasmonate may regulate the development of barley seed.

収録刊行物

  • Plant biotechnology

    Plant biotechnology 24(2), 217-220, 2007-03-01

    日本植物細胞分子生物学会

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各種コード

  • NII論文ID(NAID)
    10021911110
  • 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
    8690361
  • 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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