2009 Fiscal Year Final Research Report
Analysis of the relationship between nodule and plant by the positron-imaging
| Project/Area Number |
19780196
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Agricultural information engineering
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| Research Institution | Japan Atomic Energy Agency |
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Principal Investigator |
ISHII Satomi Japan Atomic Energy Agency, 量子ビーム応用研究部門, 研究員 (10391286)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 窒素固定 / ダイズ植物 / 非破壊計測 / ポジトロンイメージング技術 |
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| Research Abstract |
In this study, we have developed a method to produce ^<13>N-labeled radioactive nitrogen gas (^<13>N_2) with high purity. We fed the ^<13>N_2 mixed with defined concentrations of O_2 and N_2 to the underground part of intact nodulated soybean plants and obtained movies of fixation of nitrogen gas using PETIS (positron-emitting tracer imaging system) successfully. The rates of fixation within 10 min were estimated quantitatively.
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[Remarks] 総説藤巻秀、石井里美、大山卓爾、空気中の窒素を養分にするマメ科植物の「根粒」の機能の画像化、放射線と産業124 (2009), P33-35
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[Remarks] 新聞発表平成21年3月17日発表、日刊工業、上毛、毎日、日経産業に掲載植物ポジトロンイメージング技術により共生的窒素固定の観測に成功-微生物が空気から作る肥料をダイズの生産に活かす-
