Wu L. W., Ning D. L., Zhang B., Li Y., Zhang P., Shan X. Y., Zhang Q. T., Brown M., Li Z. X., Van Nostrand J. D., Ling F. Q., Xiao N. J., Zhang Y., Vierheilig J., Wells G. F., Yang Y. F., Deng Y., Tu Q. C., Wang A. J., Zhang T., He Z. L., Keller J., Nielsen P. H., Alvarez P. J. J., Criddle C. S., Wagner M., Tiedje J. M., He Q., Curtis T. P., Stahl D. A., Alvarez-Cohen L., Rittmann B. E., Wen X. H., Zhou J. Z., Cabrol Léa (collab.), Global Water Microbiome Consortium. (2019). Global diversity and biogeography of bacterial communities in wastewater treatment plants. Nature Microbiology, 4 (7), p. 1183-1195. ISSN 2058-5276.
Titre du document
Global diversity and biogeography of bacterial communities in wastewater treatment plants
Année de publication
2019
Auteurs
Wu L. W., Ning D. L., Zhang B., Li Y., Zhang P., Shan X. Y., Zhang Q. T., Brown M., Li Z. X., Van Nostrand J. D., Ling F. Q., Xiao N. J., Zhang Y., Vierheilig J., Wells G. F., Yang Y. F., Deng Y., Tu Q. C., Wang A. J., Zhang T., He Z. L., Keller J., Nielsen P. H., Alvarez P. J. J., Criddle C. S., Wagner M., Tiedje J. M., He Q., Curtis T. P., Stahl D. A., Alvarez-Cohen L., Rittmann B. E., Wen X. H., Zhou J. Z., Cabrol Léa (collab.), Global Water Microbiome Consortium
Source
Nature Microbiology, 2019,
4 (7), p. 1183-1195 ISSN 2058-5276
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 similar to 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 similar to 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.
Plan de classement
Pollution [038]
;
Biotechnologies [084]
Localisation
Fonds IRD [F B010076546]
Identifiant IRD
fdi:010076546
