2010 Fiscal Year Final Research Report
Studies on vesicle trafficking factors involving in chloroplast photorelocation movement
| Project/Area Number |
21770050
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Plant molecular biology/Plant physiology
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| Research Institution | Kyushu University |
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Principal Investigator |
KONG Samgeun Kyushu University, 大学院・理学研究院, 学術研究員 (70514157)
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| Project Period (FY) |
2009 – 2010
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| Keywords | 葉緑体 / 青色光 / 信号伝達 / フォトトロピン / キナーゼ |
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| Research Abstract |
To optimize their photosynthetic ability, chloroplasts change their positioning in cells in response to fluctuating environmental light. Chloroplasts move toward low intensity light (photoaccumulation response), conversely they avoid from the incident strong light (photoavoidance response). In this study, the signaling factors (phot2, ARF1, JAC1, CHUP1) involving in the signal transduction mechanism from blue light perception to actin-based chloroplast movements were demonstrated on their subcellular localizations, cellular functions in vesicle trafficking, and molecular interactions, respectively. Furthermore, it was also suggested that CHUP1 plays a pivotal role in the regulation of chloroplast actin filament dynamics in response to blue light.
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