negatively regulated the virulence of a diarrheal isolate SSU of Aeromonas hydrophila,
while the ahyRI-based (AI-1) N-acyl-homoserine lactone system was a positive regulator of
bacterial virulence. Thus, these QS systems had opposing effects on modulating biofilm
formation and bacterial motility in vitro models and in vivo virulence in a speticemic mouse
model of infection. In this study, we linked these two QS systems with the bacterial second …