Evidence map›Paper›PMID 18424546›Full record

ArticleApplied and environmental microbiology2008

The cyclic AMP-dependent catabolite repression system of Serratia marcescens mediates biofilm formation through regulation of type 1 fimbriae.

Eric J Kalivoda, Nicholas A Stella, Dawn M O'Dee, Gerard J Nau, Robert M Q Shanks

Abstract read
In one paragraph

Article in Applied and environmental microbiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
1.5field-weighted citation impact, top 19% 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

47 citing papers in PubMed, 65 citations in OpenAlex.

  1. Review
  2. International journal of molecular sciences · 2026
    Review
  3. From Environmental Organism to Nosocomial Threat:Antibiotics (Basel, Switzerland) · 2026
    Review
  4. Carbapenem-ResistantAntibiotics (Basel, Switzerland) · 2026
    Review
  5. International journal of molecular sciences · 2025
    Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Prevalence and Characterization ofInfection and drug resistance · 2023
    Article
  11. Article
  12. Article
  13. Article
  14. Adhesion ofNanomaterials (Basel, Switzerland) · 2020
    Article
  15. Review
  16. Article
  17. Article
  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.

Eric J KalivodaCharles T. Campbell Laboratory of Ophthalmic Microbiology, Department of Ophthalmology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania 15213, USA.
Nicholas A Stella
Dawn M O'Dee
Gerard J Nau
Robert M Q Shanks
University of Pittsburgh Medical Center · USUniversity of Pittsburgh · US

Funding

Virus Production and Manipulation of Protein/Gene Expression ModuleP30EY008098 · NEI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Ian A Sigal · 1989 to 2026
$17.8M
NEI NIH HHS EY08098NEI NIH HHS P30 EY008098
6 · The paper itself

Abstract

The mechanisms by which environmental carbon sources regulate biofilm formation are poorly understood. This study investigates the roles of glucose and the catabolite repression system in Serratia marcescens biofilm formation. The abilities of this opportunistic pathogen to proliferate in a wide range of environments, to cause disease, and to resist antimicrobials are linked to its ability to form biofilms. We observed that growth of S. marcescens in glucose-rich medium strongly stimulated biofilm formation, which contrasts with previous studies showing that biofilm formation is inhibited by glucose in Escherichia coli and other enteric bacteria. Glucose uptake is known to inversely mediate intracellular cyclic AMP (cAMP) synthesis through regulation of adenylate cyclase (cyaA) activity, which in turn controls fundamental processes such as motility, carbon utilization and storage, pathogenesis, and cell division in many bacteria. Here, we demonstrate that mutation of catabolite repression genes that regulate cAMP levels (crr and cyaA) or the ability to respond to cAMP (crp) confers a large increase in biofilm formation. Suppressor analysis revealed that phenotypes of a cAMP receptor protein (crp) mutant require the fimABCD operon, which is responsible for type 1 fimbria production. Consistently, fimA transcription and fimbria production were determined to be upregulated in a cyaA mutant background by using quantitative real-time reverse transcription-PCR and transmission electron microscopy analysis. The regulatory pathway by which environmental carbon sources influence cAMP concentrations to alter production of type 1 fimbrial adhesins establishes a novel mechanism by which bacteria control biofilm development.

Indexed as

Gene Expression Regulation, BacterialBacterial ProteinsBiofilmsCyclic AMPCyclic AMP Receptor ProteinDNA, BacterialFimbriae, BacterialGene DeletionGene Expression ProfilingGlucoseMicroscopy, Electron, TransmissionMolecular Sequence DataMutagenesis, InsertionalPhosphoenolpyruvate Sugar Phosphotransferase SystemReverse Transcriptase Polymerase Chain ReactionSequence Analysis, DNABacterial ProteinsCyclic AMPCyclic AMP Receptor ProteinDNA, BacterialGlucosePhosphoenolpyruvate Sugar Phosphotransferase System

Identifiers

PMID18424546
PMCPMC2423026
OpenAlexW1999222443

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.