2015 Fiscal Year Final Research Report
Analysis of the fate and dynamics of plant metabolites using radioisotopes
| Project/Area Number |
26660279
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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 |
Environmental agriculture(including landscape science)
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Keywords | イソフラボン / カフェイン / 根分泌物 / ダイズ / コーヒーノキ |
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| Outline of Final Research Achievements |
Plants secrete various metabolites into the rhizosphere, accounting for 10-40% of photosynthates. The fate and dynamics of these metabolites in the rhizosphere remain to be elucidated largely due to the difficulty in analysis of metabolites and the effects of microbes. In this study, we used isoflavones secreted from soybean roots, and caffeine secreted from coffee roots as model metabolites to analyze the fate and dynamics of metabolites in the rhizosphere. We found that the secretion of isoflavones dynamically changes during the growth of soybean, and the fate of isoflavones in the rhizosphere depends on the form of isoflavones. We also found that caffeine fosters mycoparasitic activity of Tricoderma against various phytopathogens.
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| Free Research Field |
環境農学
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