Interactions between the state transitions and phototaxis in the green alga Chlamydomonas
| Project/Area Number |
25291058
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Plant molecular biology/Plant physiology
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
広野 雅文 法政大学, 生命科学部, 教授 (10212177)
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| Research Collaborator |
Hisabori Toru 東京工業大学, 科学技術創成研究院, 教授
Sugiura Kazunori 東京工業大学, 科学技術創成研究院, 博士研究員
Ueki Noriko 東京工業大学, 科学技術創成研究院, 博士研究員
Ide Takahiro 東京工業大学, 資源化学研究所, 博士研究員
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| Project Period (FY) |
2013-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥11,180,000 (Direct Cost: ¥8,600,000、Indirect Cost: ¥2,580,000)
Fiscal Year 2015: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2014: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2013: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
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| Keywords | 走光性 / 光合成 / レドックス / 鞭毛 / 光受容 / クラミドモナス / ステート遷移 / レドックス制御 / チオレドキシン / 真核生物鞭毛・繊毛 |
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| Outline of Final Research Achievements |
Phototaxis is a cellular behavior in that cells move toward or against from the light source (positive or negative phototaxis, respectively). For phototrophic microorganisms, switching between positive and negative phototaxis is crucial to inhabit under suitable light intensity for photosynthesis. A unicellular green alga Chlamydomonas reinhardtii is a model organism for photo-behavioral responses. Previously, we found that cellular redox (reduction-oxidation) signal regulates this switching. In this research, to elucidate the sign-switching mechanism, we identified causative genes of mutants that show different sign of phototaxis. In parallel, we estimated intra flagellar redox potentials under different light conditions.
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Report
(5 results)
Research Products
(41 results)
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[Journal Article] Identification of the agg1 mutation responsible for negative phototaxis in a "wild-type" strain of Chlamydomonas reinhardtii2016
Author(s)
Ide, T., Mochiji, S., Ueki, N., Yamaguchi, K., Shigenobu, S., Hirono, M., Wakabayashi, K.
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Journal Title
Biochemistry and Biophysics Reports
Volume: 7
Pages: 379-385
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] Eyespot-dependent determination of the phototactic sign in Chlamydomonas reinhardtii2016
Author(s)
Ueki, N., Ide, T., Mochiji, S., Kobayashi, Y., Tokutsu, R., Ohnishi, N., Yamaguchi, K., Shigenobu, S., Tanaka, K., Minagawa, J., Hisabori, T., Hirono, M., Wakabayashi, K.
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Journal Title
Proceedings of the National Academy of Sciences of the United States of America
Volume: 印刷中
Issue: 19
Pages: 5266-5304
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Presentation] The molecular toolbox for building axonemal microtubules2016
Author(s)
Mikito Owa, Takayuki Uchihashi, Haruaki Yanagisawa, Takashi Yamano, Hiro Iguchi, Hideya Fukuzawa, Ken-ichi Wakabayashi, Toshio Ando, Masahide Kikkawa
Organizer
The 28th CDB Meeting: Cilia and Centrosomes: Current Advances and Future Directions
Place of Presentation
神戸・理研CDB
Year and Date
2016-11-27
Related Report
Int'l Joint Research
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[Presentation] Eyespot-dependent determination of the phototactic sign in Chlamydomonas reinhardtii2016
Author(s)
Noriko Ueki, Takahiro Ide, Shota Mochiji, Yuki Kobayashi, Ryutaro Tokutsu, Norikazu Ohnishi, Katushi Yamaguchi, Shuji Shigenobu, Kan Tanaka, Jun Minagawa, Toru Hisabori, Masafumi Hirono, Ken-ichi Wakabayashi
Organizer
The 17th International Conference on the Cell and Molecular Biology of Chlamydomonas
Place of Presentation
京都・京都国際会館
Year and Date
2016-06-26
Related Report
Int'l Joint Research
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