2010 Fiscal Year Final Research Report
Mechanisms of nitrogen metabolism in mycorrhizal symbiosis and its significance in terrestrial nitrogen cycling
| Project/Area Number |
20380044
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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 nutrition/Soil science
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| Research Institution | Tohoku University |
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Principal Investigator |
SAITO Masanori Tohoku University, 大学院・農学研究科, 教授 (40355079)
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| Co-Investigator(Kenkyū-buntansha) |
SAITO Katsuharu 信州大学, 農学部, 准教授 (40444244)
AONO Toshihiro 東京大学, 生物生産工学研究センター, 助教 (10372418)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 土壌生物 / 植物栄養 / 共生 / アーバスキュラー菌根菌 / ポリリン酸 |
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| Research Abstract |
In arbuscular mycorrhizal (AM) symbiosis which is comprised of plant and AM fungi, we investigated how N affects AM fungal function and physiology. We obtained the results suggesting that polyphosphate accumulation in AM fungal hyphae which is an index of the fungal P uptake is coupled with N assimilation, and also suggesting that AM fungal P uptake is regulated by soil mineral N concentration.
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