| Project/Area Number |
17K12834
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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 |
Modeling and technologies for environmental conservation and remediation
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| Research Institution | Seikei University |
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Principal Investigator |
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| Project Period (FY) |
2017-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | ファイトレメディエーション / ハクサンハタザオ / カドミウム / 亜鉛 / 元素動態 |
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| Outline of Final Research Achievements |
Phytoremediation, a method using plants as a purification technique of low cost and low environmental load of heavy metal polluted environments, has attracted attention, but the mechanism of heavy metal absorption and storage in plants which can accumulate specific heavy metals used for environmental purification at high concentration has not been clarified. In this study, we examined the absorption of heavy metals from the environment and the dynamics of heavy metals in plants of Arabidopsis halleri ssp. gemmifera, which is a hyperaccumulating plant of Cd and Zn.
It was suggested that A. halleri ssp. gemmifera actively ingested heavy metals in the environment by secreting a substance that solubilizes heavy metals from the roots, and it was clarified that the transport rate and localization site differ depending on the heavy metal species absorbed.
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| Academic Significance and Societal Importance of the Research Achievements |
重金属による環境汚染に起因する人々への健康被害は今なお世界規模の問題となっている。そのような汚染に対して、特定の重金属を高濃度で蓄積する植物を用いた低コスト・低環境負荷の浄化手法としてファイトレメディエーションが注目されているが、環境浄化に用いる植物がどのように重金属を吸収・蓄積するのかは明らかになっていなかった。本研究はその一端を明らかにし、植物単体による環境浄化が可能であることを示した。
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