Evidence map›Paper›PMID 27193154›Full record

ArticleMicrobial ecology2016

High Nutrient Concentration Can Induce Virulence Factor Expression and Cause Higher Virulence in an Environmentally Transmitted Pathogen.

Reetta Penttinen, Hanna Kinnula, Anssi Lipponen, Jaana K H Bamford, Lotta-Riina Sundberg

Abstract read
PubMed Publisher
In one paragraph

Article in Microbial ecology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

20 citing papers in PubMed, 43 citations in OpenAlex.

  1. Trial
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  5. The emergence of neuroinvasiveFrontiers in cellular and infection microbiology · 2025
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  6. Host range expansion ofFrontiers in microbiology · 2025
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  7. Article
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  11. Review
  12. Review
  13. Article
  14. Review
  15. Necropsy-based Wild Fish Health Assessment.Journal of visualized experiments : JoVE · 2018
    Article
  16. Article
  17. Review
  18. Article
  19. Article
  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

5 authors at 2 institutions in 1 country.

Reetta PenttinenDepartment of Biological and Environmental Science and Nanoscience Center, University of Jyvaskyla, Center of Excellence in Biological Interactions, P.O. Box 35, FI-40014, University of Jyvaskyla, Jyvaskyla, Finland. reetta.k.penttinen@jyu.fi.
Hanna KinnulaDepartment of Biological and Environmental Science and Nanoscience Center, University of Jyvaskyla, Center of Excellence in Biological Interactions, P.O. Box 35, FI-40014, University of Jyvaskyla, Jyvaskyla, Finland.
Anssi LipponenUniversity of Eastern Finland, A.I. Virtanen Institute for Molecular Sciences, P.O. Box 1627, FI-70211, Kuopio, Finland.
Jaana K H BamfordDepartment of Biological and Environmental Science and Nanoscience Center, University of Jyvaskyla, Center of Excellence in Biological Interactions, P.O. Box 35, FI-40014, University of Jyvaskyla, Jyvaskyla, Finland.
Lotta-Riina SundbergDepartment of Biological and Environmental Science and Nanoscience Center, University of Jyvaskyla, Center of Excellence in Biological Interactions, P.O. Box 35, FI-40014, University of Jyvaskyla, Jyvaskyla, Finland.
University of Jyväskylä · FIUniversity of Eastern Finland · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Environmentally transmitted opportunistic pathogens shuttle between two substantially different environments: outside-host and within-host habitats. These environments differ from each other especially with respect to nutrient availability. Consequently, the pathogens are required to regulate their behavior in response to environmental cues in order to survive, but how nutrients control the virulence in opportunistic pathogens is still poorly understood. In this study, we examined how nutrient level in the outside-host environment affects the gene expression of putative virulence factors of the opportunistic fish pathogen Flavobacterium columnare. The impact of environmental nutrient concentration on bacterial virulence was explored by cultivating the bacteria in various nutrient conditions, measuring the gene expression of putative virulence factors with RT-qPCR and, finally, experimentally challenging rainbow trout (Oncorhynchus mykiss) fry with these bacteria. Our results show that increased environmental nutrient concentration can increase the expression of putative virulence genes, chondroitinase (cslA) and collagenase, in the outside-host environment and may lead to more rapid fish mortality. These findings address that the environmental nutrients may act as significant triggers of virulence gene expression and therefore contribute to the interaction between an environmentally transmitted opportunistic pathogen and its host.

Indexed as

AnimalsChondroitin LyasesCollagenasesEnvironmental ExposureFish DiseasesFlavobacteriumFoodOncorhynchus mykissReal-Time Polymerase Chain ReactionVirulence FactorsWater MicrobiologyChondroitin LyasesCollagenasesVirulence FactorsChondroitinaseCollagenaseColony typeFlavobacterium columnareNutrientsRT-qPCRVirulence factors

Identifiers

PMID27193154
OpenAlexW2401843573

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.