Preventing mechanism of hydrogen sulphide emission from sediment to water by nitrate-accumulating sulphur oxidizing bacteria
| Project/Area Number |
18201005
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | National Institute of Advanced Industrial Science and Technology |
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Principal Investigator |
SAYAMA Mikio National Institute of Advanced Industrial Science and Technology, 環境管理技術研究部門, 主任研究員 (20344145)
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| Co-Investigator(Kenkyū-buntansha) |
浦川 秀敏 東京大学, 海洋研究所・先端海洋システム研究センター, 准教授 (90370262)
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| Project Period (FY) |
2006 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥51,610,000 (Direct Cost: ¥39,700,000、Indirect Cost: ¥11,910,000)
Fiscal Year 2009: ¥8,320,000 (Direct Cost: ¥6,400,000、Indirect Cost: ¥1,920,000)
Fiscal Year 2008: ¥10,270,000 (Direct Cost: ¥7,900,000、Indirect Cost: ¥2,370,000)
Fiscal Year 2007: ¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
Fiscal Year 2006: ¥16,120,000 (Direct Cost: ¥12,400,000、Indirect Cost: ¥3,720,000)
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| Keywords | 青潮 / 堆積物 / 硫化物 / イオウ酸化細菌 / 硝酸態窒素 / 物質循環 |
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| Research Abstract |
Preventing mechanism of hydrogen sulphide (H_2S) emission from sediment to water by nitrate-accumulating sulphur oxidizing bacteria (Beggiatoa) was investigated in Tokyo Bay, and it was discovered that bioelectrochemical reactions with oxygen (O_2) are playing important role in addition to chemical reactions with iron oxides (FeOOH) and biological reactions with nitrate (NO_3^-) by Beggiatoa. Electric communication between distant chemical and biological processes in nature adds an entirely new dimension to our understanding of biogeochemistry and microbial ecology.
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Report
(6 results)
Research Products
(32 results)
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[Presentation] Electric currents in marine sediment2008
Author(s)
Nielsen, L. P., N. Risgaard-Petersen, H. Fossing, P. B. Christensen, M. Sayama
Organizer
12th International Society for Microbial Ecology Conference
Place of Presentation
Cairns, Australia
Year and Date
2008-08-22
Related Report
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[Presentation] Electric currents in marinesediment2008
Author(s)
Nielsen, L. P., N. Risgaard-Petersen, H. Fossing, P.B. Christensen, M. Sayama
Organizer
12th International Society for Microbial Ecology Conference, Cairns
Place of Presentation
Australia
Year and Date
2008-08-02
Related Report
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