New Aspects of Plastid Signaling
| Project/Area Number |
16K14749
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Plant molecular biology/Plant physiology
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| Research Institution | Chiba University |
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Principal Investigator |
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| Project Period (FY) |
2016-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | プラスチドシグナル / GUN1 / エピジェネティック制御 / 光環境応答 / 概日時計 / 葉緑体 / 遺伝子発現制御 / 環境応答 / 情報伝達 / 光合成 |
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| Outline of Final Research Achievements |
The purpose of this study is to clarify novel regulatory mechanisms of nuclear gene expression regulated by chloroplast-to nucleus retrograde (plastid) signals. We found that GUN1, one of the central regulators, accumulates and functions during very early stage of plant development, and that nuclear gene expression could be regulated by the epigenetic control such as histone modification. Furthermore, roles of plastid signals in light- and circadian clock-dependent gene expression, as well as similar stress response mechanisms in photosynthetic microorganisms, have been also characterized.
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| Academic Significance and Societal Importance of the Research Achievements |
プラスチドシグナル伝達については、国内外の多くの研究者から注目が集まっており、これに関する国際シンポジウムが頻繁に開かれるほどホットな分野である。本研究により、その新しい分子機構や生理応答の側面を明らかにできたことで、植物分子細胞生物学分野の発展に大きく寄与できたものと考えられる。また、植物の光合成や代謝機能は、プラスチドシグナルも深く関わる核ゲノムと葉緑体ゲノムの遺伝子発現協調を前提としているので、様々な環境下に適応できる新たな作物の開発など、応用研究に向けての分子基盤としても強く期待される。
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Report
(4 results)
Research Products
(19 results)
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[Journal Article] CyanoBase: a large-scale update on its 20th anniversary.2017
Author(s)
Fujisawa, T., Narikawa, R., Maeda, S., Watanabe, S., Kanesaki, Y., Kobayashi, K., Nomata, J., Hanaoka, M., Watanabe, M., Ehira, S., Suzuki, E., Awai, K. and Nakamura, Y.
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Journal Title
Nucleic Acids Research
Volume: 45
Issue: D1
Pages: 551-554
DOI
Related Report
Peer Reviewed / Open Access
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