Evidence map›Paper›PMID 19841743›Full record

ArticlePloS one2009

A feeding induced switch from a variable to a homogenous state of the earthworm gut microbiota within a host population.

Knut Rudi, Kristin Odegård, Tine Therese Løkken, Robert Wilson

Abstract read
In one paragraph

Article in PloS one, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

8 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Correlations between Lumbricus terrestris survival and gut microbiota.Microbial ecology in health and disease · 2012
    Article
  7. Article
  8. 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

4 authors.

Knut RudiHedmark University College, Hamar, Norway. knut.rudi@hihm.no
Kristin Odegård
Tine Therese Løkken
Robert Wilson

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe distribution pattern of the earthworm gut microbiota at the host population level is of fundamental importance to understand host-microbiota interactions. Our current understanding of these interactions is very limited. Since feeding represents a main perturbation of the gut microbiota, we determined the effect of a single dose of feed on the microbiota associated with an earthworm population in a simulated microenvironment. METHODOLOGY: Earthworms were sampled 0, 1 and 7 days after feeding. We determined the overall composition of the earthworm-associated microbiota by 16S rRNA gene cloning and sequencing. Based on the 16S rRNA gene data we constructed quantitative PCR's (Q-PCR) for the seven most dominating bacterial groups. PRINCIPAL

findingsQ-PCR revealed low density and highly variable microbiota among the earthworms before feeding, while a high-density homologous microbiota resulted from feeding. We found that the microbiota 1 day after feeding was more equal to the microbiota after 7 days than before feeding. Furthermore, we found that the gut microbiota was very distinct from that of the bedding and the feed. SIGNIFICANCE: The homogenous population response represents fundamental new knowledge about earthworm gut associated bacteria.

Indexed as

Animal FeedAnimalsCloning, MolecularCluster AnalysisFuzzy LogicGastrointestinal TractGenes, BacterialOligochaetaPhylogenyRegression AnalysisReverse Transcriptase Polymerase Chain ReactionRNA, Ribosomal, 16SSequence Analysis, DNATime FactorsRNA, Ribosomal, 16S

Identifiers

PMID19841743
PMCPMC2759579

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Registered trials

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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.