Analysis of functional small peptide regulating drought stress signaling

• Project/Area Number: 23770056
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Plant molecular biology/Plant physiology
• Research Institution: The Institute of Physical and Chemical Research
• Principal Investigator: TAKAHASHI Fuminori 独立行政法人理化学研究所, バイオマス研究基盤チーム, 研究員 (00462698)
• Project Period (FY): 2011 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2011: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
• Keywords: 環境応答 / 植物ホルモン / 生物活性物質

Research Abstract

We isolated functional peptide released outside the cell under drought stress. This peptide localizes vascular parenchyma tissue, and regulates the expression of NCED3. This biological activity leads both the stomatal closure and enhance of stress tolerant toward drought stress condition. These results indicate this peptide regulates early sensing of environmental stress, and shed the light on the long distance signaling transfer remote tissue under stress condition.