2011 Fiscal Year Final Research Report
Recognition properties of auxin receptors underlying selective herbicidal actions among grass species
| 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
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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 |
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| 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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Research Products
(5 results)
