| Budget Amount *help |
¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2015: ¥11,570,000 (Direct Cost: ¥8,900,000、Indirect Cost: ¥2,670,000)
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| Outline of Final Research Achievements |
By using the developed cryogenic microscope system, intracellular inhomogeneous distributions of photosynthetic proteins of Chlamydomonas, a model organism for the photosynthesis study, were observed. The analysis clarified the extent of co-localizations of photosystem proteins and light-harvesting antenna proteins. This results demonstrated that antenna proteins actually shuttles between the two photosystem proteins upon state transition, which is a regulation mechanism of excitation balance of the two photosystems.
A system enabling scanning of the excitation wavelength was developed. By using the system, the fluorescence excitation spectra of single photosynthesis proteins were obtained for the first time. Information about the excitation-energy flow within the protein was obtained.
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