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Journal: INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST) | Year:0 | Volume:8 | Issue:2 (30) | Start Page:321 | End Page:330

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Information Journal Paper

Title

MICROBIAL COMMUNITY CHANGES IN CONTAMINATED SOILS IN RESPONSE TO PHENANTHRENE AMENDMENT

Writers

ZHANG S.Y. | WANG Q.F. | XIE S.G.

Pages

 Start Page 321 | End Page 330

Keywords

Abstract

 Leachate and RECLAIMED WASTEWATER have become the important sources of POLYCYCLIC AROMATIC HYDROCARBONS in soils. However, the information on bioremediation of leachate and RECLAIMED WASTEWATER-contaminated soils is still lacking. Identification of changes in microbial structure or of enriched genera related to BIODEGRADATION could aid identification of particular organisms or consortia capable of degrading POLYCYCLIC AROMATIC HYDROCARBONS in these contaminated soils. In this study, terminal restriction fragment length polymorphism, coupled with 16S Ribosomal ribonucleic acid clone library analysis, was applied to investigate the composition of bacterial community in leachate-contaminated soil or grassland soil irrigated RECLAIMED WASTEWATER and the response to phenanthrene amendment. Results showed that phenanthrene amendment had significant but different impacts on microbial community structure, dependent on soil source. Several greatly enriched terminal restriction fragments with phenanthrene BIODEGRADATION were identified. Moreover, genus rhizobacteria, possibly linked to phenanthrene BIODEGRADATION, was firstly reported in this study. This work might provide some new insights into bioremediation of POLYCYCLIC AROMATIC HYDROCARBONS-contaminated soils.

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