Evidence map›Paper›PMID 35393411›Full record

ArticleNature communications2022

MiDAS 4: A global catalogue of full-length 16S rRNA gene sequences and taxonomy for studies of bacterial communities in wastewater treatment plants.

Morten Kam Dahl Dueholm, Marta Nierychlo, Kasper Skytte Andersen, Vibeke Rudkjøbing, Simon Knutsson, MiDAS Global Consortium, Mads Albertsen, Per Halkjær Nielsen

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 117 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
117citing papers in PubMed, 1 pooled it
19.3field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

117 citing papers in PubMed, 1 synthesis or guideline pooled it, 368 citations in OpenAlex.

  1. Pooled it
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  3. Article
  4. Article
  5. Article
  6. Trace lanthanum activation drives deep biological phosphorus removal.Environmental science and ecotechnology · 2026
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  15. Review
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  20. Review

57 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 20 institutions in 30 countries.

Morten Kam Dahl DueholmCenter for Microbial Communities, Department of Chemistry and Bioscience, Aalborg University, Aalborg, Denmark. md@bio.aau.dk.ORCID http://orcid.org/0000-0003-4135-2670
Marta NierychloCenter for Microbial Communities, Department of Chemistry and Bioscience, Aalborg University, Aalborg, Denmark.
Kasper Skytte AndersenCenter for Microbial Communities, Department of Chemistry and Bioscience, Aalborg University, Aalborg, Denmark.ORCID http://orcid.org/0000-0002-5423-0958
Vibeke RudkjøbingCenter for Microbial Communities, Department of Chemistry and Bioscience, Aalborg University, Aalborg, Denmark.
Simon KnutssonCenter for Microbial Communities, Department of Chemistry and Bioscience, Aalborg University, Aalborg, Denmark.
MiDAS Global Consortium
Mads AlbertsenCenter for Microbial Communities, Department of Chemistry and Bioscience, Aalborg University, Aalborg, Denmark.ORCID http://orcid.org/0000-0002-6151-190X
Per Halkjær NielsenCenter for Microbial Communities, Department of Chemistry and Bioscience, Aalborg University, Aalborg, Denmark. phn@bio.aau.dk.ORCID http://orcid.org/0000-0002-6402-1877
Aalborg University · DKDelft University of Technology · NLDurban University of Technology · ZALa Trobe University · AUAgricultural Research Organization · ILCatalan Institute for Water Research · ESChinese Academy of Sciences · CNConsejo Nacional de Investigaciones Científicas y Técnicas · ARCornell University · USETH Zurich · CHGhent University · BEInstitute for Scientific and Technological Research · MXInstituto de Investigaciones Biológicas Clemente Estable · UYKarlsruhe Institute of Technology · DEKemira (Finland) · FIKing Abdullah University of Science and Technology · SAMcGill University · CANanyang Technological University · SGNewcastle University · GBTsinghua University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

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.

Indexed as

SewageWater PurificationBacteriaGenes, rRNAPhylogenyRNA, Ribosomal, 16SWastewaterRNA, Ribosomal, 16SSewageWastewater

Identifiers

PMID35393411
PMCPMC8989995
OpenAlexW4225700116

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.