Mechanisms of acquisition of organic phosphate by arbuscular mycorrhizal fungi
| Project/Area Number |
15K07332
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Plant nutrition/Soil science
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| Research Institution | Yamagata University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 有機態リン酸 / アーバスキュラー菌根菌 / 酸性ホスファターゼ / 外生菌糸 / 菌種間差 / ホスファターゼ / 菌根菌 / 菌糸 / リン酸 / ネギ |
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| Outline of Final Research Achievements |
Extraradical hyphae of arbuscular mycorrhizal (AM) fungi have acid phosphatase but its exudation is unknow. Soil solution was collected from hyphal compartment inoculated with AM fungus Rhizophagus clarus. ACP activity of 187 kDa was detected from soil solution of inoculated plant. Acid phosphatase activity in hyphal compartment of Linum usitatissimum was higher at low P level than that at high P level. These results suggest that AM fungi R. clarus exudes ACP and its exudation increased under P deficient condition.
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| Academic Significance and Societal Importance of the Research Achievements |
リン酸資源枯渇へ対応するためには農耕地における有機態リン酸を利用する必要がある。土壌中の外生菌糸から酸性ホスファターゼを浸出するアーバスキュラー菌根菌を作物に接種して利用することができれば、農耕地における有機態リン酸の利用が向上し、リン酸資源を国内で持続的に循環させることができる。
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Report
(5 results)
Research Products
(7 results)
