2015 Fiscal Year Final Research Report
Development o phytoremediation to efficiently remove arsenic from polluted soil environment
Project/Area Number |
25870658
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Civil and environmental engineering
Modeling and technologies for environmental conservation and remediation
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Research Institution | Tohoku University (2014-2015) Tohoku Gakuin University (2013) |
Principal Investigator |
Chien Mei-Fang 東北大学, 環境科学研究科, 助教 (20533186)
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Project Period (FY) |
2013-04-01 – 2016-03-31
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Keywords | ファイトレメディエーション / ヒ素汚染浄化 / モエジマシダ / 根圏微生物 |
Outline of Final Research Achievements |
This study aimed to develop an efficient phytoremediation technology to remove arsenic from polluted soil using arsenic hyperaccumulator ferns. The results obtained from this study were as bellow: 1, the soil bacteria played an important role in arsenic oxidation which was necessary before being absorbed by the ferns; 2, the rhizobacterial community of arsenic hyper accumulator ferns was composed of soil bacteria with adapting to the ferns; 3, the rhizobacteria isolates that are capable of arsenite oxidation and plant growth promotion were obtained; 4, the results of co-cultivation experiment using above isolated strains and hyper accumulator ferns showed that both biomass and accumulated arsenic of inoculated ferns increased much more than that of non-inoculated ones did. These results provided hints when linking microbial arsenic transformation to arsenic uptake by ferns which is important when designing pre-treatment procedures of phytoremediation.
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Free Research Field |
環境生物工学
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