Role of chlorophyll related compounds in root-knot nematode resistance in plants and exploration of new signal compounds
| Project/Area Number |
16H04888
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Plant protection science
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| Research Institution | National Agriculture and Food Research Organization |
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Principal Investigator |
SEO Shigemi 国立研究開発法人農業・食品産業技術総合研究機構, 生物機能利用研究部門, 主席研究員 (80414910)
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| Research Collaborator |
ABE Hiroshi
FUJIMOTO Taketo
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| Project Period (FY) |
2016-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥14,040,000 (Direct Cost: ¥10,800,000、Indirect Cost: ¥3,240,000)
Fiscal Year 2018: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2017: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2016: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
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| Keywords | 植物寄生性線虫 / 抵抗性誘導 / エチレン / 葉緑体 / 植物寄生性センチュウ / 抵抗性 / クロロフィル分解 / プラントアクティベーター / 植物保護 / シグナル伝達 / 病害虫抵抗性 |
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| Outline of Final Research Achievements |
Plant-parasitic nematodes parasitize roots and/or stems of a lot of host plants, resulting in damage or yield loss. Especially, the plant damage by root-knot nematode (RKN) is a very serious problem. RKN is one of the most devastating pathogenic nematodes. We found that phytol, a constituent of chlorophyll, induced resistance to RKN in tomato and Arabidopsis. Molecular genetic analyses revealed that ethylene is involved in phytol-induced RKN resistance. We also found that sclareol, another RKN resistance-inducing substance, caused chlorosis-like lesions in Arabidopsis and phytosterols are involved in inducing sclareol-induced chlorosis.
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| Academic Significance and Societal Importance of the Research Achievements |
フィトールはクロロフィルの構成成分であるが、他の生理学的役割については全くと言ってよいほど知られていなかった。本研究では、フィトールがセンチュウ抵抗性を付与することを見い出した。フィトールを用いたセンチュウ防除技術（抵抗性誘導剤等）の開発に繋がる可能性がある。
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Report
(4 results)
Research Products
(5 results)
