Brassinosteroid Signals Control Expression of the AXR3/IAA17 Gene in the Cross-Talk Point with Auxin in Root Development

この論文にアクセスする

この論文をさがす

著者

抄録

Transgenic plants overexpressing <I>AXR3/IAA17</I> were impaired in root growth. Specifically, they exhibited severe defects in lateral root and root hair development similar to the root phenotypes of epi-brassinolide (epiBL)-treated wild-type plants. Here, we investigated the involvement of <I>AXR3/IAA17</I> gene expression in brassinosteroid (BR)-regulated root development. Exogenous epiBL application significantly induced expression of the <I>AXR3/IAA17</I> gene as well as several <I>Aux/IAA</I> genes, such as <I>AXR2/IAA7</I>, <I>SLR/IAA14</I>, and <I>IAA28</I>. We analyzed the transcription levels of several <I>Aux/IAA</I> genes related to root development in the BR signaling mutant <I>bri1</I> and the BR biosynthesis mutant <I>det2</I>. <I>AXR3/IAA17</I> gene expression was significantly decreased in <I>bri1</I> plants. In <I>det2</I> plants, expression of <I>AXR3/IAA17</I> slightly decreased. This in turn suggests that epiBL induced these <I>Aux/IAA</I> genes, and that these induced gene products might function as factors in root development. Furthermore, <I>AXR3/IAA17</I> might be involved in the BR signaling pathway, suggesting an intersection node of BR-auxin signaling in root development.

収録刊行物

  • Bioscience, biotechnology, and biochemistry  

    Bioscience, biotechnology, and biochemistry 70(4), 768-773, 2006-04-23 

    Japan Society for Bioscience, Biotechnology, and Agrochemistry

参考文献:  29件

参考文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

各種コード

  • NII論文ID(NAID)
    10018531822
  • NII書誌ID(NCID)
    AA10824164
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09168451
  • NDL 記事登録ID
    7899494
  • NDL 雑誌分類
    ZR7(科学技術--農林水産--農産) // ZR2(科学技術--生物学--生化学) // ZP1(科学技術--化学・化学工業)
  • NDL 請求記号
    Z53-G223
  • データ提供元
    CJP書誌  NDL  J-STAGE 
ページトップへ