| Budget Amount *help |
¥107,900,000 (Direct Cost: ¥83,000,000、Indirect Cost: ¥24,900,000)
Fiscal Year 2019: ¥20,800,000 (Direct Cost: ¥16,000,000、Indirect Cost: ¥4,800,000)
Fiscal Year 2018: ¥20,930,000 (Direct Cost: ¥16,100,000、Indirect Cost: ¥4,830,000)
Fiscal Year 2017: ¥23,270,000 (Direct Cost: ¥17,900,000、Indirect Cost: ¥5,370,000)
Fiscal Year 2016: ¥23,140,000 (Direct Cost: ¥17,800,000、Indirect Cost: ¥5,340,000)
Fiscal Year 2015: ¥19,760,000 (Direct Cost: ¥15,200,000、Indirect Cost: ¥4,560,000)
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| Outline of Final Research Achievements |
This study aimed to clarify the molecular mechanisms of plant responses under drought and temperature stress conditions and the mechanisms of plant long-term memory in response to stress. We elucidated that plant subclass I SnRK2 kinases activated by osmotic stress regulate mRNA degradation under the stress conditions, and further identified three RAF-like kinases as upstream factors that activate the SnRK2 kinases. We also elucidated the activation mechanisms of the transcription factor DREB2A, which plays important roles in drought and heat stress-inducible gene expression. Furthermore, it was proved that two independent signal transduction pathways exist in the mechanism of cold-inducible gene expression in plants. On the other hand, we also succeeded in identifying the regulatory factors that regulate the activation of the high temperature stress-activated retrotransposon ONSEN.
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