| Budget Amount *help |
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2022: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2021: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Fiscal Year 2020: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
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| Outline of Final Research Achievements |
Focusing on stomatal chloroplast-independent and drought-independent CO2 signalling pathways responsible for higher-order information processing in the stomatal apparatus, we sought to identify novel CO2 signalling and higher-order information processing factors. Proteomic analysis of isolated stomatal chloroplasts identified stomatal chloroplast factors involved in the regulation of stomatal opening and closing. Analysis of the causal gene of a CO2-insensitive mutant revealed that PE, a phospholipid abundant in pore cells, is essential for stomatal opening. Furthermore, thermal imaging mutant screening isolated a mutant with an abnormal ABA-independent stomatal closure response.
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