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Pleiotropic effects of arnT deletion on colistin resistance, virulence, and stress tolerance in Aeromonas hydrophila are associated with impaired outer membrane homeostasis

Aeromonas hydrophila is a widespread zoonotic and aquatic pathogen posing growing challenges in aquaculture and public health due to increasing antimicrobial resistance and virulence. The arnT gene has been regarded primarily as a mediator of colistin resistance via lipopolysacch...