Elucidation of photosystem energy conversion mechanism using new Chlorophyll
| Project/Area Number |
17K07453
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Plant molecular biology/Plant physiology
|
|---|
| Research Institution | Tokyo University of Science |
|---|
Principal Investigator |
Tomo Tatsuya 東京理科大学, 理学部第一部教養学科, 教授 (60300886)
|
|---|
| Project Period (FY) |
2017-04-01 – 2020-03-31
|
| Project Status |
Completed (Fiscal Year 2019)
|
| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
|
|---|
| Keywords | クロロフィル / 光化学系 / 光合成 / エネルギー移動 / 人工光合成 / 水分解 / エネルギー変換 / 電子移動 |
|---|
| Outline of Final Research Achievements |
Although there is a diversity of chlorophylls, in this study, we used chlorophyll d and f-linked photosynthetic products Regarding chlorophyll d, the photosystem II reaction center complex was successfully isolated. From the spectroscopic analysis, the site energies of each chlorophyll were determined. Regarding chlorophyll d, photosystem I and II with chlorophyll f have been successfully isolated. Cryo-EM analysis revealed the binding sites of individual chlorophylls. These results provide insight into how the photo-excited energy transfer mechanism is regulated.
|
| Academic Significance and Societal Importance of the Research Achievements |
光合成によって得られるエネルギーはほぼ全ての生物のエネルギーの源である。光エネルギー変換を解き明かすことは、エネルギー問題の解明につながる。本研究ではクロロフィルfをもつ生物の光化学系Iの詳細な構造を明らかにすることで、低エネルギーを吸収するクロロフィルｆから高エネルギーのクロロフィルaに向かってどのような位置関係にあるとエネルギー伝達が機能するかを述べることができた。
|
Report
(4 results)
Research Products
(53 results)
-
[Journal Article] Structure basis for the adaptation and function of chlorophyll f in photosystem I.2020
Author(s)
Kato K., Shinoda T., Nagao R., Akimoto S., Suzuki T., Dohmae N., Chen M., Allakhverdiev SI., Shen J.-R., Akita F., Miyazaki N., Tomo T.
-
Journal Title
Nature Communications
Volume: 11
Issue: 1
Pages: 1-10
DOI
NAID
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
