标題: Impact of biosolids, ZnO, ZnO/biosolids on bacterial community and enantioselective transformation of racemic-quizalofop-ethyl in agricultural soil

作者: Zhou, Q (Zhou, Qing); Zhang, X (Zhang, Xu)

來源出版物: JOURNAL OF ENVIRONMENTAL SCIENCES  卷: 87  頁: 163-172  DOI: 10.1016/j.jes.2019.06.012  出版年: JAN 2020  

摘要: The effects of biosolids, ZnO, and ZnO/biosolids on soil microorganism and the environmental fate of coexisting racemic-quizalofop-ethyl (rac-QE) were investigated. Microbial biomass carbon in native soil, soil/biosolids decreased by 62% and 52% in the presence of ZnO (2%, weight ratio). The soil bacterial community structure differed significantly among native soil, soil/biosolids, soil/ZnO, and soil/biosolids/ZnO based on a principal co-ordinate analysis (PCoA) of OTUs and one-way ANOVA test of bacterial genera. Chemical transformation caused by ZnO only contributed 4% and 3% of the overall transformation of R-quizalofop-ethyl (R-QE) and S-quizalofop-ethyl (S-QE) in soil/ZnO. The inhibition effect of ZnO on the initial transformation rate of R-QE (r(R-QE)) and S-QE (r(R-QE)) in soil only observed when enantiomer concentration was larger than 10 mg/kg. Biosolids embedded with ZnO (biosolids/ZnO) caused a 17%-42% and 22%-38% decrease of r(R-QE) and r(S-QE), although r(R-QE) and r(S-QE) increased by 0%-17% and 22%-58% by the addition of biosolids. The results also demonstrated that the effects of biosolids on agricultural soil microorganism and enantioselective transformation of chiral pesticide was altered by the embedded nanoparticles. (c) 2019 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.

入藏号: WOS:000499953500014

語言: English

文獻類型: Article

作者關鍵詞: Bacterial structure; Biosolids; Chirality; Enantiomer fraction; ZnO

地址: [Zhou, Qing; Zhang, Xu] Wuhan Univ, Sch Resources & Environm Sci, Wuhan 430079, Hubei, Peoples R China.

通訊作者地址: Zhang, X (通訊作者)，Wuhan Univ, Sch Resources & Environm Sci, Wuhan 430079, Hubei, Peoples R China.

電子郵件地址: xuzhangwhu@gmail.com