| Project/Area Number |
26870142
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Forest science
Plant protection science
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| Research Institution | The University of Tokyo |
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Principal Investigator |
Takemoto Shuhei 東京大学, 大学院農学生命科学研究科(農学部), 助教 (90724724)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 腐朽病害 / 病原力評価法 / 病原機構 / 交配家系 / 多犯性 / 樹病 / 病原力 / モデル実験系 / 辺材腐朽 / 材質腐朽病 / ハプロイド菌株 / 病原力の遺伝 / 材質腐朽病のモデル実験系 / 抵抗性の品種間差 / ポプラ遺伝資源 |
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| Outline of Final Research Achievements |
A profound understanding of pathogenic mechanisms is needed to develop novel control measures for wood rot diseases. I aimed to establish an experimental system, where the pathogenicity and/or virulence of a pathogen can efficiently be evaluated. I used a fungus Schizophyllum commune as a model organism, taking advantage of its suitability for experimental use and availability of spores for crossbreeding. I used crossbred poplar cultivars as hosts, and revealed that discoloration length at inoculation points could be used as an index value of virulence. The discoloration length was influenced by the individuality and the diameter of inoculated shoots and the position of inoculation points, in addition to host cultivars. There was a correlation between the virulence of haploid isolates and their ancestral isolates, inferring the involvement of a hypothetical genetic factor(s). I proposed a novel evaluation method for virulence, in which exogeneous factors were corrected statistically.
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