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Global diversity and biogeography of bacterial communities in wastewater treatment plants

2019; Nature Portfolio; Volume: 4; Issue: 7 Linguagem: Inglês

10.1038/s41564-019-0426-5

2058-5276

Linwei Wu, Daliang Ning, Bing Zhang, Yong Li, Ping Zhang, Xiaoyu Shan, Qiuting Zhang, Mathew R. Brown, Zhenxin Li, Joy D. Van Nostrand, Fangqiong Ling, Naijia Xiao, Ya Zhang, Julia Vierheilig, George Wells, Yunfeng Yang, Ye Deng, Qichao Tu, Aijie Wang, Dany Acevedo, M. Agulló-Barceló, Pedro J. J. Alvarez, Lisa Alvarez‐Cohen, Gary L. Andersen, Juliana Calábria de Araújo, Kevin F. Boehnke, Philip L. Bond, Charles Bott, Patricia Bovio-Winkler, Rebecca K. Brewster, Faizal Bux, Angela Cabezas, Léa Cabrol, Si Chen, Craig S. Criddle, Ye Deng, Claudia Etchebehere, Amanda Ford, Dominic Frigon, Janeth Sanabria, James S. Griffin, April Z. Gu, Moshe Habagil, Lauren Hale, Steven D. Hardeman, Marc Harmon, Harald Horn, Zhiqiang Hu, Shameem Jauffur, David R. Johnson, Jürg Keller, Alexander Keucken, Sheena Kumari, Cíntia Dutra Leal, Laura Lebrun, Jangho Lee, Min-Joo Lee, Zarraz May Ping Lee, Yong Li, Zhenxin Li, Mengyan Li, Xu Li, Fangqiong Ling, Yu Liu, Richard G. Luthy, Lêda C. Mendonça-Hagler, Francisca Gleire Rodriguez de Menezes, A. J. Meyers, Amin Mohebbi, Per Halkjær Nielsen, Daliang Ning, Adrian Oehmen, Andrew Palmer, Prathap Parameswaran, Joonhong Park, Deborah Patsch, Valéria Reginatto, Francis L. de los Reyes, Bruce E. Rittmann, Adalberto Noyola, Simona Rossetti, Xiaoyu Shan, Jatinder Sidhu, William T. Sloan, Kylie Smith, Oscarina Viana de Sousa, David A. Stahl, Kyle Stephens, Renmao Tian, James M. Tiedje, Nicholas B. Tooker, Qichao Tu, Joy D. Van Nostrand, Daniel de los Cobos‐Vasconcelos, Julia Vierheilig, Michael Wagner, Steven A. Wakelin, Aijie Wang, Bei Wang, Joseph E. Weaver, George Wells, Stephanie West, Paul Wilmes, Sung-Geun Woo, Linwei Wu, Jer‐Horng Wu, Liyou Wu, Chuanwu Xi, Naijia Xiao, Meiying Xu, Tao Yan, Yunfeng Yang, Min Yang, Michelle Young, Haowei Yue, Bing Zhang, Ping Zhang, Qiuting Zhang, Ya Zhang, Tong Zhang, Qian Zhang, Wen Zhang, Yu Zhang, Hongde Zhou, Jizhong Zhou, Xianghua Wen, Thomas P. Curtis, Qiang He, Zhili He, Mathew R. Brown, Tong Zhang, Zhili He, Jürg Keller, Per Halkjær Nielsen, Pedro J. J. Alvarez, Craig S. Criddle, Michael Wagner, James M. Tiedje, Qiang He, Thomas P. Curtis, David A. Stahl, Lisa Alvarez‐Cohen, Bruce E. Rittmann, Xianghua Wen, Jizhong Zhou,

Gut microbiota and health

Microorganisms in wastewater treatment plants (WWTPs) are essential for water purification to protect public and environmental health. However, the diversity of microorganisms and the factors that control it are poorly understood. Using a systematic global-sampling effort, we analysed the 16S ribosomal RNA gene sequences from ~1,200 activated sludge samples taken from 269 WWTPs in 23 countries on 6 continents. Our analyses revealed that the global activated sludge bacterial communities contain ~1 billion bacterial phylotypes with a Poisson lognormal diversity distribution. Despite this high diversity, activated sludge has a small, global core bacterial community (n = 28 operational taxonomic units) that is strongly linked to activated sludge performance. Meta-analyses with global datasets associate the activated sludge microbiomes most closely to freshwater populations. In contrast to macroorganism diversity, activated sludge bacterial communities show no latitudinal gradient. Furthermore, their spatial turnover is scale-dependent and appears to be largely driven by stochastic processes (dispersal and drift), although deterministic factors (temperature and organic input) are also important. Our findings enhance our mechanistic understanding of the global diversity and biogeography of activated sludge bacterial communities within a theoretical ecology framework and have important implications for microbial ecology and wastewater treatment processes.