An Increase of Seawater Temperature Upregulates the Expression of Vibrio parahaemolyticus Virulence Factors Implicated in Adhesion and Biofilm Formation

• DOI: 10.3389/fmicb.2022.840628
• Publication Date: 2022-03-08T09:58:46Z
• Authors: Mélanie Billaud; François Seneca; Eric Tambutté; Dorota Czerucka
• Keywords: Marine bacteriophage

Climate change driven seawater temperature (SWT) increases results in greater abundance and geographical expansion of marine pathogens, among which Vibrio parahaemolyticus (Vp) causes serious economic health issues. In addition, plastic pollution the ocean constitutes a vector for harmful pathogens dissemination. We investigate effect elevated SWT on expression genes implicated adhesion biofilm formation abiotic surfaces clinical Vp strain RIMD2210633, expresses hemolysins. Among studied, multivalent molecule-7 GlcNAc-binding protein A were involved to biotic surfaces, whereas type IV pili, mannose-sensitive hemagglutinin, chitin-regulated pilins facilitate attachment formation. Data presented here show that at 21°C, is still viable but does not either proliferate or express virulence factors studied. Interestingly, 27°C as early 1 h incubation, all are transiently expressed free-living bacteria only even more upregulated 31°C. These clearly increased has an important impact properties support thus emphasize role climate spread this pathogenic bacteria.