Evidence map›Paper›PMID 37938245›Full record

ArticleISME communications2021

Selective enrichment and metagenomic analysis of three novel comammox Nitrospira in a urine-fed membrane bioreactor.

Jiyun Li, Zheng-Shuang Hua, Tao Liu, Chengwen Wang, Jie Li, Ge Bai, Sebastian Lücker, Mike S M Jetten, Min Zheng, Jianhua Guo

Abstract read
In one paragraph

Article in ISME communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–field-weighted citation impact
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

15 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Capturing clinically relevantMicrobial genomics · 2024
    Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. ComammoxApplied and environmental microbiology · 2023
    Article
  15. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Jiyun Li *School of Environment, Tsinghua University, Beijing, China.
Zheng-Shuang Hua *Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, People's Republic of China.ORCID http://orcid.org/0000-0002-2405-4228
Tao LiuAdvanced Water Management Centre, Faculty of Engineering, Architecture and Information Technology, The University of Queensland, Brisbane, QLD, Australia.ORCID http://orcid.org/0000-0001-7673-747X
Chengwen WangSchool of Environment, Tsinghua University, Beijing, China. wangcw@tsinghua.edu.cn.ORCID http://orcid.org/0000-0003-3277-0870
Jie LiAdvanced Water Management Centre, Faculty of Engineering, Architecture and Information Technology, The University of Queensland, Brisbane, QLD, Australia.
Ge BaiSchool of Environment, Tsinghua University, Beijing, China.
Sebastian LückerDepartment of Microbiology, IWWR, Radboud University, Nijmegen, AJ, The Netherlands.ORCID http://orcid.org/0000-0003-2935-4454
Mike S M JettenDepartment of Microbiology, IWWR, Radboud University, Nijmegen, AJ, The Netherlands.
Min ZhengAdvanced Water Management Centre, Faculty of Engineering, Architecture and Information Technology, The University of Queensland, Brisbane, QLD, Australia. m.zheng@awmc.uq.edu.au.ORCID http://orcid.org/0000-0001-9148-7544
Jianhua GuoAdvanced Water Management Centre, Faculty of Engineering, Architecture and Information Technology, The University of Queensland, Brisbane, QLD, Australia. j.guo@awmc.uq.edu.au.ORCID http://orcid.org/0000-0002-4732-9175

Funding

National Natural Science Foundation of China (National Science Foundation of China) 21876095Nederlandse Organisatie voor Wetenschappelijk Onderzoek (Netherlands Organisation for Scientific Research) grant 016.Vidi.189.050
6 · The paper itself

Abstract

The discovery of complete ammonia-oxidizing (comammox) Nitrospira has added an important new process to the microbial nitrogen cycle. While comammox Nitrospira have been detected in various ecosystems, only few studies have achieved their enrichment over other canonical nitrifiers. Here, we obtained a selective enrichment of comammox Nitrospira in a urine-fed membrane bioreactor in less than 200 days. By using 16S rRNA gene amplicon sequencing and quantitative PCR of the functional marker gene amoA, we observed a dominance (up to 30% relative abundance) of comammox Nitrospira over ammonia-oxidizing bacteria and archaea. Furthermore, the complete genomes of three new clade A comammox Nitrospira were recovered by metagenomics. These three strains were divergent from previously reported comammox species according to comparative genome and amoA-based analyses. In addition to the key genes for ammonia and nitrite oxidation, the three recovered genomes contained a complete urea utilization pathway. Our findings suggest that the urea present in the urine media played a significant role in the selective enrichment of these novel comammox Nitrospira, and support the diversity and versatility of their metabolism.

Identifiers

PMID37938245
PMCPMC9723585

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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.