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. 1998 May;180(10):2623–2629. doi: 10.1128/jb.180.10.2623-2629.1998

FIG. 4.

FIG. 4

Effects of osmotic and heat stresses on stationary-phase survival of the pcm mutant strain JV1068. (A) Survival curve showing long-term maintenance in LB broth of the untreated parental strain (untreated MC1000) (○) and the effect of adding NaCl to 0.5 M on the parental strain (MC1000) (•), the pcm mutant (JV1068) (□), and the pcm mutant complemented with attB::pcm+ (JV1083) (▪). The points shown are averages of six trials; the error bars represent 1 standard deviation. (B) Survival curve for the untreated parental strain (untreated MC1000) (○) and the effect of heating the parental strain (MC1000) (•), the pcm mutant (JV1068) (□), and the complemented pcm mutant (JV1083) (▪) to 42°C for 2 h per day. The points shown are averages of at least three trials; the error bars represent 1 standard deviation.