Evidence map›Paper›PMID 31941946›Full record

ArticleScientific reports2020

Extracellular electron uptake in Methanosarcinales is independent of multiheme c-type cytochromes.

Mon Oo Yee, Amelia-Elena Rotaru

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
9.4field-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

38 citing papers in PubMed, 142 citations in OpenAlex.

  1. Article
  2. Microbial necromass carbon enhances arsenic methylation in paddy soils.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  3. Cell surface differences within the genusJournal of bacteriology · 2025
    Review
  4. Analysis of Mechanisms for Electron Uptake byInternational journal of molecular sciences · 2025
    Review
  5. Article
  6. Review
  7. Mechanisms of microbial co-aggregation in mixed anaerobic cultures.Applied microbiology and biotechnology · 2024
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Detrimental impact of theMicrobiology spectrum · 2023
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Review
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

2 authors at 1 institution in 1 country.

Mon Oo YeeNordcee, Department of Biology, University of Southern Denmark, Odense, Denmark.
Amelia-Elena RotaruNordcee, Department of Biology, University of Southern Denmark, Odense, Denmark. arotaru@biology.sdu.dk.
University of Southern Denmark · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The co-occurrence of Geobacter and Methanosarcinales is often used as a proxy for the manifestation of direct interspecies electron transfer (DIET) in the environment. Here we tested eleven new co-culture combinations between methanogens and electrogens. Previously, only the most electrogenic Geobacter paired by DIET with Methanosarcinales methanogens, namely G. metallireducens and G. hydrogenophilus. Here we provide additional support, and show that five additional Methanosarcinales paired with G. metallireducens, while a strict hydrogenotroph could not. We also show that G. hydrogenophilus, which is incapable to grow with a strict hydrogenotrophic methanogen, could pair with a strict non-hydrogenotrophic Methanosarcinales. Likewise, an electrogen outside the Geobacter cluster (Rhodoferrax ferrireducens) paired with Methanosarcinales but not with strict hydrogenotrophic methanogens. The ability to interact with electrogens appears to be conserved among Methanosarcinales, the only methanogens with c-type cytochromes, including multihemes (MHC). Nonetheless, MHC, which are often linked to extracellular electron transfer, were neither unique nor universal to Methanosarcinales and only two of seven Methanosarcinales tested had MHC. Of these two, one strain had an MHC-deletion knockout available, which we hereby show is still capable to retrieve extracellular electrons from G. metallireducens or an electrode suggesting an MHC-independent strategy for extracellular electron uptake.

Indexed as

Coculture TechniquesCytochrome c GroupElectronsElectron TransportGeobacterMethanosarcinalesCytochrome c Group

Identifiers

PMID31941946
PMCPMC6962339
OpenAlexW2999843354

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.