Study of genes regulating root development under drought

• Project/Area Number: 22580002
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Breeding science
• Research Institution: University of Tsukuba
• Principal Investigator: FUJIMURA Tatsuhito 筑波大学, 生命環境系, 教授 (70292513)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2010: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
• Keywords: 抵抗性 / 耐性 / 乾燥ストレス / イネ / マイクロアレイ / オーキシン / 主根伸長 / 根系 / 乾燥 / ルートパウチ

Research Abstract

The culture method was revised for evaluating the response of rice to drought stress precisely. mRNAs were extracted from plants treated with drought and wet, and subjected to microarray to evaluate the differential expression during drought stress. 83 genes were up-regulated and 151 genes were down regulated with drought. The genes related to phyto-hormones also fluctuated during the stress. Especially, genes related IAA metabolism were clearly fluctuating. IAA might be an important second messenger for root development under drought.

Research Products

• [Presentation] Extensive root growth of rice under drought (2012)
  • Author(s): Tatsuhito FUJIMURA
  • Organizer: The 5th AG-BIO/PERDO Graduate Conference on Agricultural Biotechnologyand KU-UT Joint Seminar II
  • Place of Presentation: Kasetsart University, Thai
  • Year and Date: 2012-12-09
• [Presentation] Extensive growth of rice roots under drought controlled by drought? (2011)
  • Author(s): T.Fujimura, Y.Matsuma
  • Organizer: The 11th Tunisia and Japan Symposium on Science, Society and Technology
  • Place of Presentation: Hammamet (Tunisia)
  • Year and Date: 2011-11-12
• [Presentation] Extensive root growth of rice roots under drought controlled by drought? (2011)
  • Author(s): Tatsuhito FUJIMURA and Yuka MATSUMA
  • Organizer: Tunisian Japanese Symposium on Science, Society and Technology
  • Place of Presentation: Yasmine Hammamet, Tunisia
• [Presentation] Expression analysis of rice root under drought with microarray (2010)
  • Author(s): Tatsuhito FUJIMURA
  • Organizer: The 1st Algeria-Japan Academic Conference -Towards the promotion of mutual academic cooperation
  • Place of Presentation: Alger, Algeria
• [Presentation] Extensive root growth of rice under drought
  • Author(s): Tatsuhito Fujimura
  • Organizer: The 5th AG-BIO/PERDO Graduate Conference on Agricultural Biotechnology and KU-UT Joint Seminar II
  • Place of Presentation: Kasetsart University, Thai
  • Invited