Mechanisms of nitrogen metabolism in mycorrhizal symbiosis and its significance in terrestrial nitrogen cycling
Project/Area Number |
20380044
|
Research Category |
Grant-in-Aid for Scientific Research (B)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Plant nutrition/Soil science
|
Research Institution | Tohoku University |
Principal Investigator |
SAITO Masanori Tohoku University, 大学院・農学研究科, 教授 (40355079)
|
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)
藤井 毅 独立行政法人農業環境技術研究所, 生物生態機能研究領域, 上席研究員 (00354100)
|
Project Period (FY) |
2008 – 2010
|
Project Status |
Completed (Fiscal Year 2010)
|
Budget Amount *help |
¥19,500,000 (Direct Cost: ¥15,000,000、Indirect Cost: ¥4,500,000)
Fiscal Year 2010: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2009: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Fiscal Year 2008: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
|
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 / 菌根 / 窒素代謝 / アルギニン / アルカリホスファターゼ / 窒素循環 |
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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Report
(4 results)
Research Products
(46 results)