| Budget Amount *help |
¥39,520,000 (Direct Cost: ¥30,400,000、Indirect Cost: ¥9,120,000)
Fiscal Year 2009: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Fiscal Year 2008: ¥14,300,000 (Direct Cost: ¥11,000,000、Indirect Cost: ¥3,300,000)
Fiscal Year 2007: ¥15,730,000 (Direct Cost: ¥12,100,000、Indirect Cost: ¥3,630,000)
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| Research Abstract |
Two new enzymes, GS1;3 and NADH-GOGAT, related to the primary assimilation of ammonium ions in rice discovered after the complete sequencing of genome were focused to understand their functions. Reverse genetics approaches successfully showed that GS1;3 is important during the seed germination, while NADH-GOGAT2 is functioning during nitrogen remobilization during leaf senescence. A new gene related to the nitrogen use efficiency was identified with the forward genetics and it contributed the increase in root-elongation as well as nitrogen uptake in rice.
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