2000 Fiscal Year Final Research Report Summary
Molecular biology of light-responsive genes in cyanobacteria
| 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
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| Keywords | cyanobacteria / blue-greem algae / photosynthesis / high light acclimation / respiration / reactive oxygen species |
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| 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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[Publications] Yoshihara, S., Geng, X.X., Okamoto, S., Yura, K., Murata, T., Go, M., Ohmori, M.and Ikeuchi, M.: "Mutational analysis of genes involved in pilus structure, motility and transformation competency in the unicellular motile cyanobacterium Synechocystis sp.PCC 6803."Plant Cell Physiol.. 42. 63-73 (2001)
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「研究成果報告書概要(欧文)」より
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[Publications] Umeda, Y., Hirano, A., Ishibashi, M., Akiyama, H., Onizuka, T., Ikeuchi, M.and Inoue, Y.: "Cloning of cellulose synthase genes from Acetobacter xylinum JCM 7664 : Implication of a novel set of cellulose synthase genes."DNA Res.. 6. 109-115 (1999)
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「研究成果報告書概要(欧文)」より
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