Evidence map›Paper›PMID 30362296›Full record

ArticleEnvironmental microbiology2019

Formate cross-feeding and cooperative metabolic interactions revealed by transcriptomics in co-cultures of acetogenic and amylolytic human colonic bacteria.

Jenny A Laverde Gomez, Indrani Mukhopadhya, Sylvia H Duncan, Petra Louis, Sophie Shaw, Elaina Collie-Duguid, Emmanuelle Crost, Nathalie Juge, Harry J Flint

Open access · hybridAbstract read
In one paragraph

Article in Environmental microbiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

55 citing papers in PubMed, 82 citations in OpenAlex.

  1. Trial
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  15. Frontiers in microbiology · 2025
    Article
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  19. Effects of Heat-TreatedAnimals : an open access journal from MDPI · 2024
    Article
  20. Important roles ofFood science and biotechnology · 2024
    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

9 authors at 2 institutions in 1 country.

Jenny A Laverde GomezGut Health Group, The Rowett Institute, University of Aberdeen, Aberdeen, UK.
Indrani MukhopadhyaGut Health Group, The Rowett Institute, University of Aberdeen, Aberdeen, UK.ORCID 0000-0003-2577-518X
Sylvia H DuncanGut Health Group, The Rowett Institute, University of Aberdeen, Aberdeen, UK.
Petra LouisGut Health Group, The Rowett Institute, University of Aberdeen, Aberdeen, UK.
Sophie ShawCentre for Genome Enabled Biology and Medicine, University of Aberdeen, Old Aberdeen, UK.
Elaina Collie-DuguidCentre for Genome Enabled Biology and Medicine, University of Aberdeen, Old Aberdeen, UK.
Emmanuelle CrostThe Gut Health and Food Safety Institute Strategic Programme, Quadram Institute Bioscience, Norwich, UK.
Nathalie JugeThe Gut Health and Food Safety Institute Strategic Programme, Quadram Institute Bioscience, Norwich, UK.
Harry J FlintGut Health Group, The Rowett Institute, University of Aberdeen, Aberdeen, UK.
University of Aberdeen · GBQuadram Institute · GB

Funding

Biotechnology and Biological Sciences Research Council BB/L008602/1Biotechnology and Biological Sciences Research Council BBS/E/F/00044452Biotechnology and Biological Sciences Research Council BBS/E/F/000PR10353
6 · The paper itself

Abstract

Interspecies cross-feeding is a fundamental factor in anaerobic microbial communities. In the human colon, formate is produced by many bacterial species but is normally detected only at low concentrations. Ruminococcus bromii produces formate, ethanol and acetate in approximately equal molar proportions in pure culture on RUM-RS medium with 0.2% Novelose resistant starch (RS3) as energy source. Batch co-culturing on starch with the acetogen Blautia hydrogenotrophica however led to the disappearance of formate and increased levels of acetate, which is proposed to occur through the routing of formate via the Wood Ljungdahl pathway of B. hydrogenotrophica. We investigated these inter-species interactions further using RNAseq to examine gene expression in continuous co-cultures of R. bromii and B. hydrogenotrophica. Transcriptome analysis revealed upregulation of B. hydrogenotrophica genes involved in the Wood-Ljungdahl pathway and of a 10 gene cluster responsible for increased branched chain amino acid fermentation in the co-cultures. Cross-feeding between formate-producing species and acetogens may be a significant factor in short chain fatty acid formation in the colon contributing to high rates of acetate production. Transcriptome analysis also indicated competition for the vitamin thiamine and downregulation of dissimilatory sulfate reduction and key redox proteins in R. bromii in the co-cultures, thus demonstrating the wide-ranging consequences of inter-species interactions in this model system.

Indexed as

TranscriptomeAcetatesBacteriaCoculture TechniquesColonEthanolFermentationFormatesHumansMicrobial InteractionsRuminococcusStarchAcetatesEthanolFormatesStarch

Identifiers

PMID30362296
PMCPMC6378601
OpenAlexW2898551046

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.