Transcriptional analysis of flagellar and putative virulence genes of Arcobacter butzleri as an endocytobiont of Acanthamoeba castellanii
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Date
Authors
Medina, Gustavo
Neves, Patricia
Flores-Martin, Sandra
Manosalva, Carolina
Andaur, Marcela
Otth, Carola
Lincopan, Nilton
Fernandez, Heriberto
Neves, Patricia
Flores-Martin, Sandra
Manosalva, Carolina
Andaur, Marcela
Otth, Carola
Lincopan, Nilton
Fernandez, Heriberto
Authors
Date
Datos de publicación:
10.1007/s00203-019-01678-0
Keywords
Arcobacter - Flagellar genes - Endosymbiosis - Acanthamoeba
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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.
Description
Keywords
Arcobacter , Flagellar genes , Endosymbiosis , Acanthamoeba
Citation
10.1007/s00203-019-01678-0