Overexpression of OsRab7B3, a Small GTP-Binding Protein Gene, Enhances Leaf Senescence in Transgenic Rice

• PITAKRATTANANUKOOL Sugunya

  Department of Biology, Faculty of Science, Chiang Mai University Department of Biology, Faculty of Science, Chiang Mai University

• KAWAKATSU Taiji

  Functional Crop Research and Development Unit, National Institute of Agrobiological Sciences Functional Crop Research and Development Unit, National Institute of Agrobiological Sciences

• ANUNTALABHOCHAI Somboon

  Department of Biology, Faculty of Science, Chiang Mai University Department of Biology, Faculty of Science, Chiang Mai University

• TAKAIWA Fumio

  Functional Crop Research and Development Unit, National Institute of Agrobiological Sciences Functional Crop Research and Development Unit, National Institute of Agrobiological Sciences

書誌事項

タイトル別名

• Overexpression of <i>OsRab7B3</i>, a Small GTP-Binding Protein Gene, Enhances Leaf Senescence in Transgenic Rice

抄録

Rab family proteins are small GTP-binding proteins involved in intracellular trafficking. They play critical roles in several plant development processes. Different expression patterns of 46 Rabs in the rice genome were examined in various rice tissues and in leaves treated with plant growth regulators and under senescence conditions. One of the OsRab genes, OsRab7B3, closely associated with senescence in expression pattern, was chosen for functional analysis. Expression of sGFP under the control of the OsRab7B3 promoter increased in leaves when ABA and NaCl were applied or when kept in dark. In transgenic rice overexpressing OsRab7B3, the senescence-related genes were upregulated and leaf senescence was significantly enhanced under dark conditions. Moreover, leaf yellowing occurred earlier in the transgenic plants than in the wild type at the ripening stage. Hence it is suggested that OsRab7B3 act as a stress–inducible gene that plays an important role in the leaf senescence process.

収録刊行物

• Ｂｉｏｓｃｉｅｎｃｅ，　Ｂｉｏｔｅｃｈｎｏｌｏｇｙ，　ａｎｄ　Ｂｉｏｃｈｅｍｉｓｔｒｙ

  Ｂｉｏｓｃｉｅｎｃｅ，　Ｂｉｏｔｅｃｈｎｏｌｏｇｙ，　ａｎｄ　Ｂｉｏｃｈｅｍｉｓｔｒｙ 76 (7), 1296-1302, 2012

  公益社団法人 日本農芸化学会

キーワード

• leaf senescence
• small GTP-binding proteins
• Rab expression profile
• stress-inducible genes

詳細情報

• CRID: 1390001206478571648
• NII論文ID: 130001862717
• NII書誌ID: AA10824164
• DOI: 10.1271/bbb.120050
• COI: 1:STN:280:DC%2BC38jpt1Kitw%3D%3D
• ISSN: 13476947
• ISSN: 09168451
• NDL書誌ID: 023840685
• PubMed: 22785493
• Web Site: http://id.ndl.go.jp/bib/023840685
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I023840685
• Web Site: http://www.tandfonline.com/doi/pdf/10.1271/bbb.120050
• 本文言語コード: en
• データソース種別:
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  • NDL
  • Crossref
  • PubMed
  • CiNii Articles
  • KAKEN
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