Functional analysis of auxin transcriptional regulators in the phototropic responses

• Project/Area Number: 26440134
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Plant molecular biology/Plant physiology
• Research Institution: Niigata University
• Principal Investigator: Sakai Tatsuya 新潟大学, 自然科学系, 教授 (10360554)
• Research Collaborator: KIMURA Taro 新潟大学, 大学院・自然科学研究科
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000); Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: 植物 / 光環境応答 / 光屈性 / フォトトロピン / オーキシン / 転写制御 / 植物基礎科学 / 根

Outline of Final Research Achievements

Function of Auxin transcriptional regulators were analyzed in the root phototropic response, which is induced independently of asymmetric auxin distribution. Auxin trascriptional facotr ARF7, transcriptional regulator IAA19 and auxin receptor TIR1 were involved in the phototropic response of roots. However, our results suggested that their function are not controlled by the phototropin signaling pathways.

Research Products

• [Int'l Joint Research] University of Calfornia at San Diego(米国)
• [Int'l Joint Research] University of California at San Diego(米国)
• [Journal Article] Arabidopsis ROOT PHOTOTROPISM2 contributes to the adaptation to High-Intensity Light in Phototropic Responses. (2015)
  • Author(s): Ken Haga, Tomoko Tsuchida-Mayama, Mizuki Yamada and Tatsuya Sakai
  • Journal Title: The Plant Cell Volume: 27 Issue: 4 Pages: 1098-1112
  • DOI: 10.1105/tpc.15.00178
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] シロイヌナズナの根の光屈性におけるオーキシン輸送・生合成・シグナル伝達の機能解析 (2016)
  • Author(s): 木村太郎、芳賀健、志水ー三田尾、竹林裕美子、林謙一郎、Yunde Zhao、柿本辰男、笠原博幸、酒井達也
  • Organizer: 日本植物生理学会
  • Place of Presentation: 岩手大学
  • Year and Date: 2016-03-18
• [Presentation] Functional analysis of auxin biosynthesis, transport and signaling in root phototropism of Arabidopsis thaliana. (2016)
  • Author(s): Taro Kimura, Ken Haga, Yasuhi Shimizu-Mitao, Yumiko Takebayashi, Ken-Ichiro Hayashi, Yunde Zhao, Tatsuo Kakimoto, Hiroyuki Kasahara, Tatsuya Sakai.
  • Organizer: 新潟大学・刈羽村先端農業バイオ研究センター（ＫＡＡＢ）国際シンポジウム
  • Place of Presentation: 新潟大学、新潟
  • Int'l Joint Research
• [Presentation] シロイヌナズナの根の光屈性におけるオーキシン輸送、生合成、シグナル伝達の機能解析 (2016)
  • Author(s): 木村太郎、芳賀健、志水-三田尾悌、竹林裕美子、林謙一郎、Yunde Zhao、柿本辰男、笠原博幸、酒井達也
  • Organizer: 生物資源ゲノム解析拠点シンポジウム
  • Place of Presentation: 日本農業大学、東京
• [Presentation] シロイヌナズナの根の光屈性におけるオーキシン輸送・生合成・シグナル伝達の機能解析 (2015)
  • Author(s): 木村太郎、芳賀健、志水ー三田尾、竹林裕美子、林謙一郎、Yunde Zhao、柿本辰男、笠原博幸、酒井達也
  • Organizer: 日本植物学会
  • Place of Presentation: 新潟、朱鷺メッセ
  • Year and Date: 2015-09-06
• [Presentation] Analysis of function of auxin and its action mechanism in Arabidopsis root phototropism (2015)
  • Author(s): 木村太郎
  • Organizer: 植物環境感覚国際シンポジウム
  • Place of Presentation: 産業技術研究所
  • Year and Date: 2015-03-12 – 2015-03-14
• [Remarks] 植物の光感受性変換機構を発見
  • URL: http://www.niigata-u.ac.jp/wp-content/uploads/2016/03/270415.pdf