Deciphering the microbial and genetic responses of anammox biogranules to the single and joint stress of zinc and tetracycline
文献类型：期刊论文
| 作者 | Fan, Nian-Si; Zhu, Xiao-Ling; Wu, Jing; Tian, Zhe; Bai, Yu-Hui; Huang, Bao-Cheng; Jin, Ren-Cun |
| 刊名 | ENVIRONMENT INTERNATIONAL
 |
| 出版日期 | 2019-11-01 |
| 卷号 | 132页码:- |
| 关键词 | Anammox Zinc Tetracycline MRG ARGs Inhibition |
| ISSN号 | 0160-4120 |
| 英文摘要 | The feasibility of using anaerobic ammonium oxidation (anammox) process to treat wastewaters containing antibiotics and heavy metals was evaluated in this study. The nitrogen removal performance and characteristic parameters were monitored during the whole experimental period of 258 d. The single and joint effects of zinc and tetracycline on the microbial community were studied in upflow anaerobic sludge blanket (UASB) reactors. The anammox performance remained at levels comparable with the initial state at the lower inhibitor concentrations (zinc, 0-2.26 mg L-1; tetracycline, 0-0.5 mg L-1). When the concentrations of zinc and tetracycline increased to 3.39 mg L-1 in R-1 and 1.0 mg L-1 in R-2, an obvious deterioration in performance was observed. Dual inhibitors with a total concentration of >= 3 mg L-1 caused dramatic decreases in the nitrogen removal efficiency of R-3. The quantification results showed that the abundances of eight antibiotic resistance genes (ARGs), czcA and intI1 in the experimental reactors generally increased under stress from metals or/and antibiotics, with final values higher than in the control, while the functional gene abundances were lower. Moreover, most genes exhibited significant correlations. Microbial community analysis indicated that Planctomycetes (represented by Candidatus Kuenenia) was inhibited by both zinc and tetracycline, but still held the dominant position. Furthermore, Caldilinea (belonging to Chloroflexi) maintained a higher abundance during the inhibitory period, implying its potential resistance to both inhibitors. These findings suggested that anammox could be inhibited by metals and antibiotics, but it has the potential to remove nitrogen from wastewaters containing both of them within the concentration threshold. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/42636]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 作者单位 | 1.Hangzhou Normal Univ, Key Lab Hangzhou City Ecosyst Protect & Restorat, Hangzhou 311121, Zhejiang, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China 3.Hangzhou Normal Univ, Coll Life & Environm Sci, Hangzhou 311121, Zhejiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fan, Nian-Si,Zhu, Xiao-Ling,Wu, Jing,et al. Deciphering the microbial and genetic responses of anammox biogranules to the single and joint stress of zinc and tetracycline[J]. ENVIRONMENT INTERNATIONAL,2019,132:-. |
| APA | Fan, Nian-Si.,Zhu, Xiao-Ling.,Wu, Jing.,Tian, Zhe.,Bai, Yu-Hui.,...&Jin, Ren-Cun.(2019).Deciphering the microbial and genetic responses of anammox biogranules to the single and joint stress of zinc and tetracycline.ENVIRONMENT INTERNATIONAL,132,-. |
| MLA | Fan, Nian-Si,et al."Deciphering the microbial and genetic responses of anammox biogranules to the single and joint stress of zinc and tetracycline".ENVIRONMENT INTERNATIONAL 132(2019):-. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。