Role of a positive regulator of root hair development, CAPRICE, in Arabidopsis root epidermal cell differentiation

Takuji Wada, Tetsuya Kurata, Rumi Tominaga, Yoshihiro Koshino-Kimura, Tatsuhiko Tachibana, Koji Goto, M. David Marks, Yoshiro Shimura, Kiyotaka Okada

    研究成果: Article査読

    233 被引用数 (Scopus)

    抄録

    In Arabidopsis, root hairs are formed only from a set of epidermal cells named trichoblasts; or hair-forming cells. Previous studies showed CAPRICE (CPC) promotes differentiation of hair-forming cells by controlling a negative regulator, GLABRA2 (GL2), which is preferentially expressed in hairless cells. Here, we show that CPC is also predominantly expressed in the hairless cells, but not in the neighboring hair-forming cells, and that CPC protein moves to the hair-forming cells and represses the GL2 expression. We also show that the N terminus of bHLH protein interacts with CPC and is responsible for the GL2 expression. We propose a model in which CPC plays a key role in the fate-determination of hair-forming cells.

    本文言語English
    ページ(範囲)5409-5419
    ページ数11
    ジャーナルDevelopment
    129
    23
    DOI
    出版ステータスPublished - 2002 12

    ASJC Scopus subject areas

    • 分子生物学
    • 発生生物学

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