Phage-host associations in a full-scale activated sludge plant during sludge bulking
文献类型：期刊论文
| 作者 | Liu, Ruyin; Qi, Rong; Liu, Xinchun; Wang, Juan; Zhang, Yu; Rossetti, Simona; Tandoi, Valter; Yang, Min |
| 刊名 | APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
 |
| 出版日期 | 2017-08-01 |
| 卷号 | 101期号:16页码:6495-6504 |
| 关键词 | Sludge Bulking Phage-host Association Viral Metagenome Analysis 16s Rrnagene Pyrosequencing |
| 英文摘要 | Sludge bulking, a notorious microbial issue in activated sludge plants, is always accompanied by dramatic changes in the bacterial community. Despite large numbers of phages in sludge systems, their responses to sludge bulking and phage-host associations during bulking are unknown. In this study, high-throughput sequencing of viral metagenomes and bacterial 16S rRNA genes were employed to characterize viral and bacterial communities in a sludge plant under different sludge conditions (sludge volume index (SVI) of 180, 132, and 73 ml/g). Bulking sludges (SVI > 125 ml/g) taken about 10 months apart exhibited similar bacterial and viral composition. This reflects ecological resilience of the sludge microbial community and indicates that changes in viral and bacterial populations correlate closely with each other. Overgrowth of "Candidatus Microthrix parvicella" led to filamentous bulking, but few corresponding viral genotypes were identified. In contrast, sludge viromes were characterized by numerous contigs associated with "Candidatus Accumulibacter phosphatis," suggesting an abundance of corresponding phages in the sludge viral community. Notably, while nitrifiers (mainly Nitrosomonadaceae and Nitrospiraceae) declined significantly along with sludge bulking, their corresponding viral contigs were identified more frequently and with greater abundance in the bulking viromes, implying that phage-mediated lysis might contribute to the loss of autotrophic nitrifiers under bulking conditions. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39544]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Liu, Ruyin,Qi, Rong,Liu, Xinchun,et al. Phage-host associations in a full-scale activated sludge plant during sludge bulking[J]. APPLIED MICROBIOLOGY AND BIOTECHNOLOGY,2017,101(16):6495-6504. |
| APA | Liu, Ruyin.,Qi, Rong.,Liu, Xinchun.,Wang, Juan.,Zhang, Yu.,...&Yang, Min.(2017).Phage-host associations in a full-scale activated sludge plant during sludge bulking.APPLIED MICROBIOLOGY AND BIOTECHNOLOGY,101(16),6495-6504. |
| MLA | Liu, Ruyin,et al."Phage-host associations in a full-scale activated sludge plant during sludge bulking".APPLIED MICROBIOLOGY AND BIOTECHNOLOGY 101.16(2017):6495-6504. |
入库方式： OAI收割
来源：生态环境研究中心
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