| Project/Area Number |
10640626
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
植物生理
|
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| Research Institution | The University of Tokyo |
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Principal Investigator |
IKEUCHI Masahiko The University of Tokyo Department of Life Sciences Associate Professor, 大学院・総合文化研究科, 助教授 (20159601)
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| Project Period (FY) |
1998 – 2000
|
| Project Status |
Completed (Fiscal Year 2000)
|
| Budget Amount *help |
¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 2000: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1999: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1998: ¥2,300,000 (Direct Cost: ¥2,300,000)
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| Keywords | cyanobacteria / blue-greem algae / photosynthesis / high light acclimation / respiration / reactive oxygen species |
|---|
| Research Abstract |
Phototrophic organisms respond to various light environments for the purpose of optimization of photosynthesis directly or indirectly. However, the molecular mechanism of light acclimation has not yet been elucidated in detail. We took advantage of transformable cyanobacterium Synechocystis sp.PCC 6803 for molecular analysis of light-responsive mechanism. Genes we have identified in this study are slr2031 (putative Ser/Thr protein phosphatase), spkA (Ser/Thr protein kinase), spkB (Ser/Thr protein kinase), pisJl operon (phytochrome-like photoreceptor and signal transduction pathway genes). We also analyzed high light-responsive genes by using DNA microarray. Through our works, outline of the whole image was given for molecular mechanism with which cyanobacteria respond to light environments.
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