Molecular mechanism of plant nyctinasty
| Project/Area Number |
26282207
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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 |
Biomolecular chemistry
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| Research Institution | Tohoku University |
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Principal Investigator |
Ueda Minoru 東北大学, 理学研究科, 教授 (60265931)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥16,510,000 (Direct Cost: ¥12,700,000、Indirect Cost: ¥3,810,000)
Fiscal Year 2016: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2014: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
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| Keywords | 就眠運動 / イオンチャネル / ジャスモン酸グルコシド / 概日性リズム / K-チャネル / ROS |
|---|
| Outline of Final Research Achievements |
The circadian leaf opening and closing (nyctinasty) of Fabaceae has attracted scientists’ attention since the era of Charles Darwin. Nyctinastic movement is triggered by the alternate swelling and shrinking of motor cells at the base of the leaf. This in turn is facilitated by changing osmotic pressures brought about by ion flow through anion and potassium ion channels. However, key regulatory ion channels and molecular mechanisms remain largely unknown. Here, we identify three key ion channels in mimosoid tree Samanea saman: the slow-type anion channels, SsSLAH1 and SsSLAH2, and the Shaker-type potassium channel, SPORK2. We show that cell-specific circadian expression of SsSLAH1 plays a key role in nyctinastic leaf opening. In addition, SsSLAH1 co-expressed with SsSLAH2 in flexor (abaxial) motor cells promoted leaf opening.
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Report
(4 results)
Research Products
(11 results)
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[Journal Article] The jasmonate-responsive GTR1 transporter is required for gibberellin-mediated stamen development in Arabidopsis2015
Author(s)
H. Saito, T. Oikawa, S. Hamamoto, Y. Ishimaru, T. Utsumi, J. Chen, M. Kanamori, Y. Sasaki-Sekimoto, M. Shimojima, S. Masuda, Y. Kamiya, M. Seo, N. Uozumi, M. Ueda, H. Ohta, A
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Journal Title
Nature Communications
Volume: 6
Issue: 1
Pages: 6095-6095
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] Elevated levels of CYP94 family gene expression alleviate the jasmonate response and enhance salt tolerance in rice2015
Author(s)
Kurotani, K., Hayashi, K., Hatanaka, S., Toda, Y., Ogawa, D., Ichikawa, H., Ishimaru, Y., Tashita, R., Suzuki, T., Ueda, M., Hattori, T. and Takeda S.
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Journal Title
Plant Cell Physiol.
Volume: 56
Issue: 4
Pages: 779-789
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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