FIG. 3.

The hfq mutant is more sensitive to stress than the LVS parent strain. (A) Serial fivefold dilutions of stationary-phase cultures were spotted onto chocolate agar plates and incubated at 37°C or 40°C. (B) Growth of LVS and the hfq mutant in complex broth supplemented with 0%, 1%, or 2% NaCl. (C) Serial 10-fold dilutions of stationary-phase cultures of LVS, the hfq mutant, and the hfq mutant containing a plasmid with hfq were spotted onto chocolate agar plates containing 0.2% SDS, 2% NaCl, or H₂O (control) and incubated at 37°C.