Studies on microbial effects and biotransformation of diphenylarsinic acid in anaerobic soils
| Project/Area Number |
22510083
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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 |
Environmental technology/Environmental materials
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| Research Institution | Niigata University |
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Principal Investigator |
HARADA Naoki 新潟大学, 自然科学系, 准教授 (50452066)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 環境修復技術 / 土壌圏現象 / 有機ヒ素 / 嫌気的微生物変換 / 硫酸還元 / チオ化 / ジフェニルアルシン酸 / 嫌気分解 / 微生物多様性 / DGGE / 水田土壌 / バイオレメディエーション |
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| Research Abstract |
The objectives of this study were to investigate, 1) effects of diphenylarsinic acid (DPAA) on microbial community structures and 2) factors affecting biotransformation of DPAA, in anaerobic soils. As a result, the presence of DPAA did not distinctly change soil bacterial and archaeal community structures under submerged and anaerobic conditions. The microbial transformation of DPAA in soil was enhanced under sulfate-reducing conditions and diphenylthioarsinic acid (DPTA) was found as a major metabolite. Participation of sulfate-reducing bacteria in the transformation of DPAA to DPTA is predicted.
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Report
(4 results)
Research Products
(16 results)
