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2014 Fiscal Year Final Research Report

Development of super-symbiotic plant and microorganisms association and its application for wastewater treatment

Research Project

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Project/Area Number 24310057
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Environmental technology/Environmental materials
Research InstitutionUniversity of Yamanashi

Principal Investigator

TOYAMA Tadashi  山梨大学, 総合研究部, 准教授 (60431392)

Project Period (FY) 2012-04-01 – 2015-03-31
Keywords環境保全技術 / 環境修復技術 / 排水処理 / 植物根圏 / 水生植物 / 植生浄化 / 内分泌撹乱化学物質 / 植物・微生物共生
Outline of Final Research Achievements

The objectives of this study were (i) to develop the super-symbiotic plant and microorganisms association for wastewater treatment, (ii) to clarify the mechanisms of the symbiotic association and (iii) to demonstrate high-efficient wastewater treatment by using the super-symbiotic association. First, plant growth promoting bacteria (PGPB) of duckweed and common reed were isolated. The PGPB could promote growth, biomass production, photosynthesis and nitrogen uptake of duckweed/common reed. I demonstrated the accelerated nitrogen removal from wastewater by using the symbiotic association. Second, endocrine-disrupting chemicals (EDCs)-degrading bacteria were isolated and characterized. Duckweed and common reed could promote degrading activity/growth activity of the EDC-degrading bacteria. I constructed the symbiotic plant and EDC-degrading bacteria association, and demonstrated the efficient and sustainable removal of EDCs from contaminated wastewaters by using the association.

Free Research Field

環境工学

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Published: 2016-06-03  

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