SYNERGY EFFECT OF ORGANIC ACIDS FROM PLANTS ON MINERAL DISSOLUTION BY SIDEROPHORE-PRODUCING BACTERIA
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- KIMURA Tatsuki
- 京都大学大学院 工学研究科
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- KOZAI Naofumi
- 日本原子力研究開発機構 原子力科学研究部門
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- SAKAMOTO Fuminori
- 日本原子力研究開発機構 原子力科学研究部門
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- FUKUTANI Satoshi
- 京都大学複合原子力科学研究所
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- IKEGAMI Maiko
- 京都大学複合原子力科学研究所
Bibliographic Information
- Other Title
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- 植物が生産する有機酸がシデロホア生産微生物の鉱物溶解促進効果に与える影響
- ショクブツ ガ セイサン スル ユウキサン ガ シデロホア セイサン ビセイブツ ノ コウブツ ヨウカイ ソクシン コウカ ニ アタエル エイキョウ
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Abstract
<p> It is known that cesium in clay minerals is dissolved by bacteria. Generally, plants live symbiotically with bacteria. However, little is known about synergetic effect of plants and symbiotic bacteria on cesium dissolution from soil. In this study, we first determined an organic acid produced by a model plant, clover, which was lactic acid. Next, a symbiotic bacterium isolated from clover was cultured with or without addition of lactic acid in a medium containing biotite powder. Addition of lactic acid enhanced dissolution of biotite by the bacterium. As for cesium dissolution from biotite, the cesium concentrations in the liquid phases of the bacterial culture media were lower than those in blank media with no bacterial cells. A possible reason of this lower cesium concentration could be cesium absorption by bacterial cells as magnesium was absorbed.</p>
Journal
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- Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)
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Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 76 (7), III_375-III_382, 2020
Japan Society of Civil Engineers