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Filamentation and SOS induction in E. coli holC-mutant strains. (A) Cells were grown at 30 or 37°C as indicated in MOPS minimal medium. Fields of cells were imaged to show cell morphology (phase contrast), nucleoid structure (hupA∷mcherry) or SOS induction (sulAp∷gfp). Bright green spots are beads used for quantification. (Inset) Close-up images of cells. (B) Close-up of hupA∷mcherry of the strains indicated grown at 37°C.
