Identification of signaling partners of the N-terminal domain of phytochrome B

• Project/Area Number: 21770049
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Plant molecular biology/Plant physiology
• Research Institution: Kyushu University
• Principal Investigator: MATSUSHITA Tomonao Kyushu University, 大学院・農学研究院, 特任准教授 (20464399)
• Project Period (FY): 2009 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2010: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2009: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
• Keywords: フィトクロム / 植物 / 光受容体 / シグナル伝達 / 環境応答

Research Abstract

Phytochrome B (phyB) is a plants' major photoreceptor regulating various light responses of plants. In order to understand the molecular mechanism of phyB signal transduction in plant cells, we conducted a forward-genetic analysis by screening less light-responsive mutants in Arabidopsis. As a result, we identified a novel nuclear-localized RNA binding protein which was involved specifically in phyB signaling.

Research Products

• [Journal Article] Functional analyses of the activation loop of phototropin2 in Arabidopsis (2011)
  • Author(s): Inoue, et al
  • Journal Title: Plant Physiol. Volume: DOI:10.1104/111.175943
  • Peer Reviewed
• [Presentation] フィトクロムBのN末端領域の下流因子を同定するための挑戦的な劣性変異体スクリーニング法の開発 (2011)
  • Author(s): 松下智直
  • Organizer: 第52回日本植物生理学会年会
  • Place of Presentation: 宮城県仙台市
  • Year and Date: 2011-03-22
• [Presentation] フィトクロムB経路特異的な異常を示す突然変異体の新規スクリーニング系による単離とその原因遺伝子の解析 (2010)
  • Author(s): 四方明格, ら
  • Organizer: 日本植物学会第74回大会
  • Place of Presentation: 愛知県春日井市
  • Year and Date: 2010-09-11
• [Presentation] フィトクロムBのN 末端領域と相互作用する光シグナル伝達因子の探索 (2009)
  • Author(s): 四方明格, ら
  • Organizer: 日本植物学会第73回大会
  • Place of Presentation: 山形大学(山形)
  • Year and Date: 2009-09-19
• [Presentation] フィトクロムBのN末端領域と相互作用する光シグナル伝達因子の探索 (2009)
  • Author(s): 四方明格, ら
  • Organizer: 日本植物学会第73回大会
  • Place of Presentation: 山形大学(山形)
  • Year and Date: 2009-09-19
• [Presentation] 植物の主要な光情報受容体フィトクロムBの細胞内シグナル伝達機構の解析 (2009)
  • Author(s): 松下智直
  • Organizer: 日本生物環境工学会2009年福岡大会
  • Place of Presentation: 九州大学(福岡)
  • Year and Date: 2009-09-06