| Budget Amount *help |
¥241,540,000 (Direct Cost: ¥185,800,000、Indirect Cost: ¥55,740,000)
Fiscal Year 2014: ¥43,680,000 (Direct Cost: ¥33,600,000、Indirect Cost: ¥10,080,000)
Fiscal Year 2013: ¥45,760,000 (Direct Cost: ¥35,200,000、Indirect Cost: ¥10,560,000)
Fiscal Year 2012: ¥47,970,000 (Direct Cost: ¥36,900,000、Indirect Cost: ¥11,070,000)
Fiscal Year 2011: ¥47,580,000 (Direct Cost: ¥36,600,000、Indirect Cost: ¥10,980,000)
Fiscal Year 2010: ¥56,550,000 (Direct Cost: ¥43,500,000、Indirect Cost: ¥13,050,000)
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| Outline of Final Research Achievements |
We identified several rice genes involved in tolerance to Al toxicity, which is a major stress factor in acid soil. We also identified a cis-acting element of transcription factor ART1, which regulates the Al-tolerance genes in rice. Furthermore, we found that 1 kb insertion in the upstream of barley Al-tolerance gene, HvAACT1, increasing number of cis-acting elements of ART1 in the promoter region of Al-tolerance gene HlALMT1 in Yorkshire fog are important for enhanced expression of these genes. We also found that a node-based transporter OsNramp3 functions as switch in response to environmental change of Mn concentration. In addition, we have identified several genes involved in mineral element transport and constructed a mathematical model for Si uptake in rice.
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