Evidence map›Paper›PMID 34875063›Full record

ReviewFEMS microbiology reviews2022

Syntrophic propionate-oxidizing bacteria in methanogenic systems.

Maria Westerholm, Magdalena Calusinska, Jan Dolfing

Open access · bronzeAbstract readReview
In one paragraph

Review in FEMS microbiology reviews, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
9.8field-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

35 citing papers in PubMed, 133 citations in OpenAlex.

  1. Article
  2. Article
  3. Recent advances in microbial production of odd-chain fatty acids.World journal of microbiology & biotechnology · 2026
    Review
  4. Article
  5. Article
  6. Can bio-HFrontiers in microbiology · 2026
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. International journal of systematic and evolutionary microbiology · 2025
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. 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

3 authors at 3 institutions in 3 countries.

Maria WesterholmDepartment of Molecular Sciences, Swedish University of Agricultural Sciences, BioCentre, Almas allé 5, SE-75007 Uppsala, Sweden.ORCID 0000-0003-2150-8762
Magdalena CalusinskaEnvironmental Research and Innovation Department, Luxembourg Institute of Science and Technology, rue du Brill 41, L-4422 Belvaux, Luxembourg.
Jan DolfingFaculty of Energy and Environment, Northumbria University, Wynne Jones 2.11, Ellison Place, Newcastle-upon-Tyne NE1 8QH, UK.
Luxembourg Institute of Science and Technology · LUNorthumbria University · GBSwedish University of Agricultural Sciences · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The mutual nutritional cooperation underpinning syntrophic propionate degradation provides a scant amount of energy for the microorganisms involved, so propionate degradation often acts as a bottleneck in methanogenic systems. Understanding the ecology, physiology and metabolic capacities of syntrophic propionate-oxidizing bacteria (SPOB) is of interest in both engineered and natural ecosystems, as it offers prospects to guide further development of technologies for biogas production and biomass-derived chemicals, and is important in forecasting contributions by biogenic methane emissions to climate change. SPOB are distributed across different phyla. They can exhibit broad metabolic capabilities in addition to syntrophy (e.g. fermentative, sulfidogenic and acetogenic metabolism) and demonstrate variations in interplay with cooperating partners, indicating nuances in their syntrophic lifestyle. In this review, we discuss distinctions in gene repertoire and organization for the methylmalonyl-CoA pathway, hydrogenases and formate dehydrogenases, and emerging facets of (formate/hydrogen/direct) electron transfer mechanisms. We also use information from cultivations, thermodynamic calculations and omic analyses as the basis for identifying environmental conditions governing propionate oxidation in various ecosystems. Overall, this review improves basic and applied understanding of SPOB and highlights knowledge gaps, hopefully encouraging future research and engineering on propionate metabolism in biotechnological processes.

Indexed as

EuryarchaeotaPropionatesAnaerobiosisBacteriaEcosystemOxidation-ReductionPropionatesanaerobic digestioninterspecies electron transfermethanogenesismethylmalonyl-CoA pathwaypropionic acidsyntrophy

Identifiers

PMID34875063
PMCPMC8892533
OpenAlexW4200063237

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.