Molecular basis of potential extreme stress tolerance in rice

• Project/Area Number: 22658106
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Single-year Grants
• Research Field: Boundary agriculture
• Research Institution: National Agriculture and Food Research Organization
• Principal Investigator: IMAI Ryozo 独立行政法人農業・食品産業技術総合研究機構, 北海道農業研究センター・寒地作物研究領域, 上席研究員 (90291913)
• Project Period (FY): 2010 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥3,520,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥420,000); Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2010: ¥1,700,000 (Direct Cost: ¥1,700,000)
• Keywords: イネ / ジベレリン / 環境ストレス / 代謝酵素 / 植物 / ストレス / 発現制御

Research Abstract

Extreme drought tolerance exhibited by a GA deficient mutant of rice was investigated. The mutant does not show drought avoidance but overexpress unique genes for drought tolerance. GA metabolizing gene was placed under drought inducible promoter and introduced into rice plants in order to create drought tolerant transgenic rice.