| Project/Area Number |
23760797
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Earth system and resources enginnering
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| Research Institution | Japan Agency for Marine-Earth Science and Technology |
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Principal Investigator |
YAMAMOTO Masahiro 独立行政法人海洋研究開発機構, 海洋・極限環境生物圏領域, 研究員 (60435849)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 電気化学 / 微生物生態学 / 深海熱水系 / 国際情報交換 / 国際情報交流 / アメリカ合衆国 |
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| Research Abstract |
In this study, I formed the working hypothesis of existence of 'Environmental Electric Ecosystem', in which some microorganisms use electric current produced by remote oxidation-reduction reactions in the environment. The purpose of the study was solution of the amount and mechanism of the Environmental Electric Ecosystem.
Through the study subject, we showed that environmental electric current occurred around the deep-sea hydrothermal vents, by analyses of mineral electrical property, mineral catalytic characterization, oxidation-reduction potential in hydrothermal fluid and seawater, and on-site power generation examination, etc. Furthermore, we also showed that microbes adheres to the mineral surface under this environmental electric current. We were not able to realize the long-term microbial cultivation under the deep-sea electrical current because of bad weather. However, future progress is promising about the enrichment cultivation of the current use microbes in the laboratory.
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