Roles of bacterial stringent response, conserved in chloroplast, for plant physiology

2010 Fiscal Year Final Research Report

• Project/Area Number: 21770037
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Plant molecular biology/Plant physiology
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: MASUDA Shinji Tokyo Institute of Technology, バイオ研究基盤支援総合センター, 准教授 (30373369)
• Project Period (FY): 2009 – 2010
• Keywords: 色素体機能・光合成 / 緊縮応答 / 葉緑体 / 遺伝子発現 / シロイヌナズナ / 栄養飢餓

Research Abstract

Stringent response is a global regulatory system controlling gene expression and protein activities in bacteria. Recent genome sequence analyses have revealed that genes encoding proteins involved in the response are conserved in plants. However, physiological functions of the plant stringent response have not been well understood.
In this study, we characterized Arabidopsis stringent factors. The results indicated that the plant-type stringent response has important roles for chloroplast development as well as transcription and translation of chloroplast genome.

Research Products

• [Journal Article] 被子植物のプラスチドで形成されるプロラメラボディーに関する新知見 (2010)
  • Author(s): 増田真二
  • Journal Title: 生物物理 50 Pages: 36-37
  • Peer Reviewed
• [Journal Article] Prolamellar bodies formed by cyanobacterial protochlorophyllide oxidoreductase in Arabidopsis. (2009)
  • Author(s): Shinji Masuda, Rei Ikeda, Tatsuru Masuda, Haruki Hashimoto, Tohru Tsuchiya, Hiroko Kojima, Jiro Nomata, Yuichi Fujita, MMamoru Mimuro, Hiroyuki Ohta, Ken-ichiro Takamiya
  • Journal Title: Plant J. 58 Pages: 952-960
  • Peer Reviewed
• [Presentation] 葉緑体形成におけるシロイヌナズナRelA/SpoTホモログの機能解析 (2011)
  • Author(s): 前川未来翔、水澤一樹、太田啓之、増田真二
  • Organizer: 2011年度日本植物生理学会
  • Place of Presentation: 東北大学
  • Year and Date: 2011-03-20
• [Presentation] バクテリア型セカンドメッセンジャーppGppを介した葉緑体における脂肪酸合成の制御 (2010)
  • Author(s): 前川未来翔、水澤一樹、太田啓之、増田真二
  • Organizer: 平成22年度日本植物脂質科学研究会シンポジウム
  • Place of Presentation: 京都大学
  • Year and Date: 2010-11-27
• [Presentation] The effects of RSH3 over-expression on thylakoid membrane biogenesis in Arabidopsis. (2009)
  • Author(s): Mikika Maekawa, Kazuki Mizusawa, Hiroyuki Onta, Shinji Masuda
  • Organizer: The 3rd Asian Symposium on Plant Lipids.
  • Place of Presentation: 横浜情報文化センター
  • Year and Date: 2009-11-27
• [Remarks] ホームページ等
• [Patent(Industrial Property Rights)] 貧栄養耐性植物の作出方法 (2011)
  • Inventor(s): 増田真二、前川未来翔
  • Industrial Property Rights Holder: 東京工業大学
  • Industrial Property Number: 特願,2011-49320
  • Filing Date: 2011-03-07