The cross-talk between phototorpic response and phytoalexin production
| Project/Area Number |
24658106
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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 |
Bioproduction chemistry/Bioorganic chemistry
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| Research Institution | University of Tsukuba |
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Principal Investigator |
YAMADA Kosumi 筑波大学, 生命環境系, 准教授 (70292521)
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 光屈性 / オーキシン / 光屈性制御物質 / ファイトアレキシン / クロストーク / 光誘導性成長抑制物質 / blue light / gravity / phytoallexin / lignin accumulation / 青色光 / 国際情報交換 |
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| Outline of Final Research Achievements |
Cholodny-Went theory is a major model describing the positive and negative curvatures in phototropism. The directional growth is caused by an asymmetrical distribution of auxin. In contrast, evidence showing that phototropism is caused by blue light-induced local accumulation of growth inhibitors has also been presented (Bruinsma-Hasegawa theory). To clarify the mechanism of growth inhibition in response to unilateral blue light, the isolation and identification of growth inhibitors has been intensively attempted in several plant species. Interestingly, most of the inhibitors have been known as phytoalexins. Therefore, we hypothesized the possible cross-talk between phototropism and plant defense mechanism. The physiological and biochemical studies have strongly suggested that the phototropic response may be one of the responses against the environmental stresses.
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Report
(5 results)
Research Products
(15 results)
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[Journal Article] Artabolide, a novel polar auxin transport inhibitor isolated from Artemisia absinthium2013
Author(s)
T. Arai, Y. Toda, K. Kato, K. Miyamoto, T. Hasegawa, K. Yamada, J. Ueda, K. Hasegawa, T. Inoue, H. Shigemori
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Journal Title
Tetrahedron
Volume: 69
Pages: 7001-7005
NAID
Related Report
Peer Reviewed
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