2021 Fiscal Year Final Research Report
Genetic analysis of regulatory network of proton motive force
| Project Area | New Photosynthesis : Reoptimization of the solar energy conversion system |
|---|
| Project/Area Number |
16H06555
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
|
| Allocation Type | Single-year Grants |
|---|
| Review Section |
Biological Sciences
|
|---|
| Research Institution | Kyoto University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2016-06-30 – 2021-03-31
|
| Keywords | 光合成 / 葉緑体 / 電子伝達 / プロトン / サイクリック電子伝達 |
|---|
| Outline of Final Research Achievements |
Photosynthetic electron transport is coupled with proton translocation across the thylakoid membrane. Resulting proton concentration gradient is utilized in ATP synthesis and also downregulates electron transport. We clarified the mechanism by which plants optimize the size of delta-pH to avoid photoinhibition without decreasing the rate of photosynthesis. We also tried to artificially modify the regulatory system.
|
| Free Research Field |
植物生理学
|
| Academic Significance and Societal Importance of the Research Achievements |
光は光合成に必須であるが、過剰な光の需要は光合成装置を破壊する。我々は、チラコイド膜を介したプロトンの勾配に着目し、この光の効果の二面性を最適化する分子機構の一部を明らかにした。また積極的に光合成制御を改変するアプローチから、光合成を環境に再最適化することが可能であることを示した。
|
