DEVELOPMENTAL MECHANISMS OF ROOT APICAL MERISTEMS THAT ARE ESSENTIAL FOR CONSTRUCTION OF ROOT SYSTEM

2009 Fiscal Year Self-evaluation Report

• Project Area: Plant regulatory systems that control developmental interactions between meristems and lateral organs
• Project/Area Number: 19060006
• Research Category: Grant-in-Aid for Scientific Research on Priority Areas
• Allocation Type: Single-year Grants
• Review Section: Biological Sciences
• Research Institution: Kobe University
• Principal Investigator: HIDEHIRO Fukaki Kobe University, 大学院・理学研究科, 准教授 (80324979)
• Project Period (FY): 2007 – 2013
• Keywords: メリステム / 側根形成 / オーキシン / 転写制御因子

Research Abstract

維管束植物の根系構築の基礎となる根端メリステム、特に側根メリステムの発生機構の解明を目的として、モデル植物であるシロイヌナズナを用いて以下の研究を行う。
(1) オーキシン応答転写因子ARFとAux/IAAタンパク質、およびオーキシン誘導性LBD/ASLsなどの転写制御因子を介した側根形成開始の分子カスケードを明らかにする。
(2) 側根メリステムに異常を示す新たな変異体の分子遺伝学的解析から、側根メリステム形成・維持機構を明らかにする。

Research Products

• [Journal Article] Auxin control of root development. (2010)
  • Author(s): Overvoorde, P., Fukaki, H., Beeckman, T.
  • Journal Title: Cold Spring Harb. Perspect. Biol. (In press)
  • Peer Reviewed
• [Journal Article] RLF, a cytochrome b5 heme/steroid binding protein, controls for lateral root formation independently of ARF7/19-mediated auxin signaling in Arabidopsis thaliana. (2010)
  • Author(s): Ikeyama, Y., Tasaka, M., Fukaki, H.
  • Journal Title: Plant J.
  • URL: DOI:10.1111/j.1365-313X.2010.04199.x
  • Peer Reviewed
• [Journal Article] Hormone interactions during lateral root formation. (2009)
  • Author(s): Fukaki, H., Tasaka M.
  • Journal Title: Plant Mol. Biol. 69 Pages: 437-449
  • Peer Reviewed
• [Journal Article] Domain II mutations in CRANE/IAA18 suppress lateral root formation and affect shoot development in Arabidopsis thaliana. (2008)
  • Author(s): Uehara, T., Okushima, Y., Mimura, T., Tasaka, M., Fukaki, H.
  • Journal Title: Plant Cell Physiol 49 Pages: 1025-1038
  • Peer Reviewed
• [Journal Article] The auxin-regulated AP2/EREBP gene PUCHI is required for morphogenesis in the early lateral root primordium of Arabidopsis. (2007)
  • Author(s): Hirota, A., Kato, T., Fukaki, H., Aida, M., Tasaka, M.
  • Journal Title: Plant Cell 19 Pages: 2156-2168
• [Remarks] 研究代表者の研究室ホームページ
  • URL: http://www.research.kobe-u.ac.jp/fsci-fukaki/fukaki/fukaki_laboratory.html
• [Remarks] 特定領域「植物メリステム」ホームページ
  • URL: http://www.bio.nagoya-u.ac.jp/~yas/tokutei_plant_meristems/index.html