ArticleJournal of bacteriology2010
Regulation of pga operon expression and biofilm formation in Actinobacillus pleuropneumoniae by sigmaE and H-NS.
Article in Journal of bacteriology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.
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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.
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.
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Who cites it
32 citing papers in PubMed, 75 citations in OpenAlex.
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- Effects of OxyR regulator on oxidative stress, Apx toxin secretion and virulence ofFrontiers in cellular and infection microbiology · 2023Article
- In vitro Activity of Cefepime/Avibactam Against Carbapenem ResistantInfection and drug resistance · 2023Article
- The Metabolic Adaptation in Response to Nitrate Is Critical for Actinobacillus pleuropneumoniae Growth and Pathogenicity under the Regulation of NarQ/P.Infection and immunity · 2022Article
- Cpx-signalling facilitates Hms-dependent biofilm formation by Yersinia pseudotuberculosis.NPJ biofilms and microbiomes · 2022Article
- Identification of small RNAs associated with RNA chaperone Hfq reveals a new stress response regulator inFrontiers in microbiology · 2022Article
- Complete genome forMicrobial genomics · 2021Article
- A Histone-Like Nucleoid Structuring Protein Regulates Several Virulence Traits in Burkholderia multivorans.Applied and environmental microbiology · 2021Article
- Potential prebiotic substrates modulate composition, metabolism, virulence and inflammatory potential of an in vitro multi-species oral biofilm.Journal of oral microbiology · 2021Article
- Rationally designedAnimal diseases · 2021Article
- A Trimeric Autotransporter Enhances Biofilm Cohesiveness in Yersinia pseudotuberculosis but Not in Yersinia pestis.Journal of bacteriology · 2020Article
- Identification of drug target candidates of the swine pathogen Actinobacillus pleuropneumoniae by construction of protein-protein interaction network.Genes & genomics · 2018Article
- Article
- The CpxA/CpxR Two-Component System Affects Biofilm Formation and Virulence inFrontiers in cellular and infection microbiology · 2018Article
- Article
- Defining Genetic Fitness Determinants and Creating Genomic Resources for an Oral Pathogen.Applied and environmental microbiology · 2017Article
- Alternative pathways for Escherichia coli biofilm formation revealed by sRNA overproduction.Molecular microbiology · 2017Article
- Surface Polysaccharide Mutants Reveal that Absence of O Antigen Reduces Biofilm Formation of Actinobacillus pleuropneumoniae.Infection and immunity · 2016Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 4 institutions in 2 countries.
Funding
Abstract
Clinical isolates of the porcine pathogen Actinobacillus pleuropneumoniae often form adherent colonies on agar plates due to expression of an operon, pgaABCD, encoding a poly-beta-1,6-N-acetyl-D-glucosamine (PGA) extracellular matrix. The adherent colony phenotype, which correlates with the ability to form biofilms on the surfaces of polystyrene plates, is lost following serial passage in broth culture, and repeated passage of the nonadherent variants on solid media does not result in reversion to the adherent colony phenotype. In order to investigate the regulation of PGA expression and biofilm formation in A. pleuropneumoniae, we screened a bank of transposon mutants of the nonadherent serovar 1 strain S4074(T) and identified mutations in two genes, rseA and hns, which resulted in the formation of the adherent colony phenotype. In other bacteria, including the Enterobacteriaceae, H-NS acts as a global gene regulator, and RseA is a negative regulator of the extracytoplasmic stress response sigma factor sigma(E). Transcription profiling of A. pleuropneumoniae rseA and hns mutants revealed that both sigma(E) and H-NS independently regulate expression of the pga operon. Transcription of the pga operon is initiated from a sigma(E) promoter site in the absence of H-NS, and upregulation of sigma(E) is sufficient to displace H-NS, allowing transcription to proceed. In A. pleuropneumoniae, H-NS does not act as a global gene regulator but rather specifically regulates biofilm formation via repression of the pga operon. Positive regulation of the pga operon by sigma(E) indicates that biofilm formation is part of the extracytoplasmic stress response in A. pleuropneumoniae.
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Registered trials
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.