Evidence map›Paper›PMID 23150571›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2012

Unexpected nondenitrifier nitrous oxide reductase gene diversity and abundance in soils.

Robert A Sanford, Darlene D Wagner, Qingzhong Wu, Joanne C Chee-Sanford, Sara H Thomas, Claribel Cruz-García, Gina Rodríguez, Arturo Massol-Deyá, Kishore K Krishnani, Kirsti M Ritalahti and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 185 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
185citing papers in PubMed, 1 pooled it
23.6field-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

185 citing papers in PubMed, 1 synthesis or guideline pooled it, 651 citations in OpenAlex.

  1. Pooled it
  2. Three Decades of Soil NGlobal change biology · 2026
    Review
  3. A novelApplied and environmental microbiology · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Bacterial NFrontiers in microbiology · 2026
    Article
  9. Article
  10. Article
  11. Assimilatory NFrontiers in microbiology · 2026
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Microbiome Single Cell Atlases Generated with a Commercial Instrument.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  18. Article
  19. Review
  20. Article

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

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

13 authors at 7 institutions in 3 countries.

Robert A SanfordDepartment of Geology, University of Illinois, Urbana, IL 61801, USA.
Darlene D Wagner
Qingzhong Wu
Joanne C Chee-Sanford
Sara H Thomas
Claribel Cruz-García
Gina Rodríguez
Arturo Massol-Deyá
Kishore K Krishnani
Kirsti M Ritalahti
Silke Nissen
Konstantinos T Konstantinidis
Frank E Löffler
Georgia Institute of Technology · USOak Ridge National Laboratory · USUniversity of Puerto Rico-Mayaguez · PRNational Institute of Abiotic Stress Management · INUniversity of Illinois Urbana-Champaign · USUniversity of Tennessee at Knoxville · USUrbana University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Agricultural and industrial practices more than doubled the intrinsic rate of terrestrial N fixation over the past century with drastic consequences, including increased atmospheric nitrous oxide (N(2)O) concentrations. N(2)O is a potent greenhouse gas and contributor to ozone layer destruction, and its release from fixed N is almost entirely controlled by microbial activities. Mitigation of N(2)O emissions to the atmosphere has been attributed exclusively to denitrifiers possessing NosZ, the enzyme system catalyzing N(2)O to N(2) reduction. We demonstrate that diverse microbial taxa possess divergent nos clusters with genes that are related yet evolutionarily distinct from the typical nos genes of denitirifers. nos clusters with atypical nosZ occur in Bacteria and Archaea that denitrify (44% of genomes), do not possess other denitrification genes (56%), or perform dissimilatory nitrate reduction to ammonium (DNRA; (31%). Experiments with the DNRA soil bacterium Anaeromyxobacter dehalogenans demonstrated that the atypical NosZ is an effective N(2)O reductase, and PCR-based surveys suggested that atypical nosZ are abundant in terrestrial environments. Bioinformatic analyses revealed that atypical nos clusters possess distinctive regulatory and functional components (e.g., Sec vs. Tat secretion pathway in typical nos), and that previous nosZ-targeted PCR primers do not capture the atypical nosZ diversity. Collectively, our results suggest that nondenitrifying populations with a broad range of metabolisms and habitats are potentially significant contributors to N(2)O consumption. Apparently, a large, previously unrecognized group of environmental nosZ has not been accounted for, and characterizing their contributions to N(2)O consumption will advance understanding of the ecological controls on N(2)O emissions and lead to refined greenhouse gas flux models.

Indexed as

Genetic VariationNitrificationSoil MicrobiologyBacteriaBase SequenceDNA PrimersMolecular Sequence DataOxidoreductasesPhylogenyPolymerase Chain ReactionDNA Primersnitrous oxide reductaseOxidoreductases

Identifiers

PMID23150571
PMCPMC3511753
OpenAlexW2063024895

What OpenQuestion holds

Textmetadata
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.