2011 Fiscal Year Final Research Report
Efficient polluted water treatment using aquatic plant. rhizosphere bacteria association
| Project/Area Number |
22710069
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Environmental technology/Environmental materials
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| Research Institution | University of Yamanashi |
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Principal Investigator |
TOYAMA Tadashi 山梨大学, 大学院・医学工学総合研究部, 助教 (60431392)
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| Project Period (FY) |
2010 – 2011
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| Keywords | 環境浄化 / 根圏微生物 / 水生植物 / 内分泌撹乱化学物質 / 分解 / 廃水処理 |
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| Research Abstract |
Rhizosphere bacteria capable of degrading phenolic endocrine-disrupting chemicals, including nonylphenol, 4-tert-butylphenol and bisphenol A, were isolated from rhizosphere of Spirodela polyrrhiza(duckweed) and Phragmites australis(common reed). Oxygen and organic compounds released by roots of the plants could accelerate biodegradation of endocrine-disrupting chemicals by the rhizosphere bacteria. The isolated rhizosphere strains colonized on the roots surface of the plants, and aquatic plant-rhizosphere bacteria association effectively and repeatedly removed endocrine-disrupting chemicals from polluted water. The results demonstrate the potential usefulness of using aquatic plant-rhizosphere bacteria associations to achieve efficient and sustainable treatment of polluted waters.
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