Fundamental research on biotransformation of actinides during intake of bacteria by Protozoa
| Project/Area Number |
20560778
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Nuclear engineering
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| Research Institution | Japan Atomic Energy Agency |
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Principal Investigator |
KOZAI Naofumi Japan Atomic Energy Agency, 先端基礎研究センター, 研究副主幹 (80354877)
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| Co-Investigator(Kenkyū-buntansha) |
OHNUKI Toshihiko 独立行政法人日本原子力研究開発機構, 先端基礎研究センター, 研究主席 (20354904)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2008: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Keywords | バックエンド / 放射性廃棄物 / 地層処分 / 原生動物 / ゾウリムシ / 食物連鎖 / バクテリア / 代謝 / アクチノイド |
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| Research Abstract |
It was found that the representative of protozoa, Paramecium sp., may have a function to prevent adsorption of heavy elements on the cell membranes. When cells of Paramecium sp. were cultured with yeast cells as food source, the heavy elements pre-fixed on the yeast cells were hardly leached in the culture medium and excreted from paramecium cells as phosphates with indigestible residue of the yeast cells. This finding implies that functions of microorganism such as yeast and bacteria to immobilize heavy elements on the cells can be expected in the actual ecological system.
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Report
(4 results)
Research Products
(15 results)
