| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Outline of Final Research Achievements |
The extrinsic subunits of photosystem II (PSII) regulate the oxygen-evolving reaction, while their subunit composition differs among the eukaryotic photosynthetic organisms. In this study, we have investigated the interaction and function of the PsbP protein, which is specifically developed in the green plants. Our results suggest that a prokaryote-type PsbP became PsbP by the addition of the N-terminal extension and the specific loop regions to develop the functions as an PSII extrinsic subunit, essential for the optimum oxygen-evolving activity. Furthermore, we revealed the function of prokaryote-type PsbP (PPL1) in green plants during photosynthetic acclimation in fluctuating light environments.
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