| Project/Area Number |
21580011
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Crop science/Weed science
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| Research Institution | University of Tsukuba |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
MATSUMOTO Hiroshi 筑波大学, 生命環境系, 教授 (10199888)
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| Project Period (FY) |
2009 – 2011
|
| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2009: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | オーキシン型除草剤 / 選択作用性 / オーキシン受容体 / マイクロアレイ解析 / 除草剤 / 合成オーキシン / キンクロラック / 2,4-D / オーキシン系除草剤 / 活性酸素 |
|---|
| Research Abstract |
Quinclorac is one of the auxinic herbicides belonging to the quinolinecarboxylic acid family, and the mode of action has been thought to be the same as with 2, 4-D, an auxinic herbicide belonging to the phenoxyacetic acid family. Quinclorac exhibits high selectivity among grass species, and the primary mechanism underlying its selective action has been considered to be the selective induction of ethylene biosynthesis, which ultimately leads to cyanide accumulation in susceptible grasses. In this study, the mode of action of quinclorac and recognition properties of auxin receptors were investigated. Our results strongly suggest that quinclorac has a different action from 2, 4-D in several susceptible grass species ; quinclorac-induced growth reduction may be caused by ROS, but not by cyanide.
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