Construction of a microbial flora dynamics model in nitrogen-fixing bacterial symbiotic system and conversion of atmospheric nitrogen
| Project/Area Number |
26450085
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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 |
Applied microbiology
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| Research Institution | Utsunomiya University |
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Principal Investigator |
Maeda Isamu 宇都宮大学, 農学部, 准教授 (10252701)
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| Co-Investigator(Renkei-kenkyūsha) |
WATANABE Masanori 山形大学, 農学部, 准教授 (20320020)
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| Research Collaborator |
KUGENUMA Takumi
ARASHIDA Haruka
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 窒素固定 / 光合成細菌 / 枯草菌 / 共培養 / ニトロゲナーゼ / 共生系 / 枯草菌―紅色非硫黄細菌共生系 / 枯草菌―光合成細菌共生系 / 細菌共生系 |
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| Outline of Final Research Achievements |
Ammonia, a raw material for nitrogen fertilizer, is synthesized from nitrogen and hydrogen by chemical synthesis. The biological nitrogen fixing reaction, which synthesizes ammonia from nitrogen in the air under milder conditions, is catalyzed by diazotrophic bacteria, and the reaction is inhibited by oxygen. This study demonstrates that by introducing co-culture with Bacillus subtilis, which can grow with oxygen consumption, photosynthetic bacteria, which belong to a group of diazotrophic bacteria, actively fixed nitrogen in the presence of air and grew diazotrophically after the growth of B. subtilis. From this result, development of microbial fertilizer as a nitrogen source is expected.
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Report
(5 results)
Research Products
(7 results)
