Biofilm formation of Salmonella Typhimurium linked to sRNA. (A) Biofilm formation assay of S. Typhimurium SL1344 containing the control vector (pJV300), MicA depletion (pJV853.1) or overexpression (pJV871.14) constructs. (B) Biofilm formation assay of S. Typhimurium SL1344 rpoE (JVS-01028) and hfq (CMPG5628) deletion mutants. Biofilm formation is expressed as percentage of wildtype SL1344 biofilm. Error bars depict 1% confidence intervals of at least three biological replicates.