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Abstract
Microbial communities are responsible for biological wastewater treatment, but our knowledge of their diversity and function is still poor. Here, we sequence more than 5 million high-quality, full-length 16S rRNA gene sequences from 740 wastewater treatment plants (WWTPs) across the world and use the sequences to construct the ‘MiDAS 4’ database. MiDAS 4 is an amplicon sequence variant resolved, full-length 16S rRNA gene reference database with a comprehensive taxonomy from domain to species level for all sequences. We use an independent dataset (269 WWTPs) to show that MiDAS 4, compared to commonly used universal reference databases, provides a better coverage for WWTP bacteria and an improved rate of genus and species level classification. Taking advantage of MiDAS 4, we carry out an amplicon-based, global-scale microbial community profiling of activated sludge plants using two common sets of primers targeting regions of the 16S rRNA gene, revealing how environmental conditions and biogeography shape the activated sludge microbiota. We also identify core and conditionally rare or abundant taxa, encompassing 966 genera and 1530 species that represent approximately 80% and 50% of the accumulated read abundance, respectively. Finally, we show that for well-studied functional guilds, such as nitrifiers or polyphosphate-accumulating organisms, the same genera are prevalent worldwide, with only a few abundant species in each genus.
Original language | English |
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Article number | 1908 |
Journal | Nature Communications |
Volume | 13 |
Issue number | 1 |
ISSN | 2041-1723 |
DOIs | |
Publication status | Published - 7 Apr 2022 |
Bibliographical note
© 2022. The Author(s).Keywords
- Bacteria/genetics
- Genes, rRNA
- Phylogeny
- RNA, Ribosomal, 16S/genetics
- Sewage/microbiology
- Waste Water/microbiology
- Water Purification
Fingerprint
Dive into the research topics of 'MiDAS 4: A global catalogue of full-length 16S rRNA gene sequences and taxonomy for studies of bacterial communities in wastewater treatment plants'. Together they form a unique fingerprint.Projects
- 1 Active
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MiDAS: Microbial Database for Activated Sludge and Anaerobic Digesters
Nielsen, P. H., Nierychlo, M. A., Hove Hansen, S., Dueholm, M. K. D., Xu, Y., Korntved, A. C., Jiang, C. & Andersen, K. S.
01/01/2006 → …
Project: Research
Research output
- 121 Citations
- 1 Comment/debate
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Author Correction: MiDAS 4: A global catalogue of full-length 16S rRNA gene sequences and taxonomy for studies of bacterial communities in wastewater treatment plants (Nature Communications, (2022), 13, 1, (1908), 10.1038/s41467-022-29438-7)
Dueholm, M. K. D., Nierychlo, M., Andersen, K. S., Rudkjøbing, V., Knutsson, S., MiDAS Global Consortium, Albertsen, M. & Nielsen, P. H., 11 Jul 2022, In: Nature Communications. 13, 1, 4017.Research output: Contribution to journal › Comment/debate › Research › peer-review
Open AccessFile4 Citations (Scopus)20 Downloads (Pure)