Transcriptional analysis of flagellar and putative virulence genes of Arcobacter butzleri as an endocytobiont of Acanthamoeba castellanii.
PMID 31123791 · Archives of microbiology · 2019 · DOI 10.1007/s00203-019-01678-0
Authors: Gustavo Medina; Patricia Neves; Sandra Flores-Martin; Carolina Manosalva; Marcela Andaur; Carola Otth; Nilton Lincopan; Heriberto Fernández
Abstract
Arcobacter butzleri is an emerging foodborne zoonotic pathogen that has been isolated from environmental water sources. This pathogen establishes in vitro endosymbiotic relationships with Acanthamoeba castellanii, a free-living amoeba found in environmental matrices such as soil and water. The principal aim of this study was to analyse the transcriptional pattern of flagellar (flaA-flaB-flgH-motA) and other putative virulence genes (ciaB-cadF-mviN-pldA) of A. butzleri during its interaction with A. castellanii by quantitative real-time PCR. The transcriptional analysis showed up-regulation of all genes analysed before A. butzleri became established as an endocytobiont of A. castellanii. In contrast, while A. butzleri remains an endocytobiont, a significant and sustained decrease in the transcription of all analysed genes was observed. Our findings suggest that A. butzleri requires a biphasic transcriptional pattern of flagellar and other putative virulence genes to establish an endosymbiotic relationship with A. castellanii.
Acanthamoeba castellanii; Animals; Arcobacter; Bacterial Outer Membrane Proteins; Bacterial Proteins; Flagella; Flagellin; Symbiosis; Virulence; Virulence Factors
Cite
Gustavo Medina; Patricia Neves; Sandra Flores-Martin; Carolina Manosalva; Marcela Andaur; Carola Otth; Nilton Lincopan; Heriberto Fernández. Transcriptional analysis of flagellar and putative virulence genes of Arcobacter butzleri as an endocytobiont of Acanthamoeba castellanii. Archives of microbiology (2019). PMID 31123791. DOI 10.1007/s00203-019-01678-0.