Relationship between salinity tolerance and the cell death in root of rice

Research Project

Project/Area Number	19580015
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Crop science/Weed science
Research Institution	Okayama University
Principal Investigator	HIRAI Yoshihiko Okayama University, 大学院・自然科学研究科, 准教授 (80263622)
Co-Investigator(Kenkyū-buntansha)	津田誠岡山大学, 大学院・自然科学研究科, 教授 (30144231)
Project Period (FY)	2007 – 2009
Project Status	Completed (Fiscal Year 2009)
Budget Amount *help	¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000) Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000) Fiscal Year 2008: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000) Fiscal Year 2007: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords	イネ / 耐塩性 / シアン耐性呼吸 / 抗酸化能 / 細胞死 / アポプラスト経路 / Na吸収速度 / 作物 / 根
Research Abstract	The viability of root-tip cells under salinity stress is closely related with the sodium accumulation in shoot of rice. Not only the activity of antioxidants (Ascorbate peroxidase and catalase) but also the activity of cyanide-resistant alternative respiration may relate to decrease the amount of the reactive oxygen species in roots and cell death. This suggests that these activities in roots are important to improve the salinity tolerance in rice.