Transcriptional analysis of flagellar and putative virulence genes of Arcobacter butzleri as an endocytobiont of Acanthamoeba castellanii
- Medina Schwerter, Gustavo - Neves, Patricia - Flores Martin, Sandra - Manosalva, Carolina - Andaur Rademacher, Marcela - Otth, Carola - Lincopan, Nilton - Fernandez, Heriberto
- Datos de publicación:
- ARCHIVES OF MICROBIOLOGY,Vol.201,1075-1083,2019
- Arcobacter - Acanthamoeba - Virulence genes - Flagellar genes - Endosymbiosis
- Migración Web of Science 
- 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.