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Stability of plasmid pGE779 in strain HF950. Cultures were grown lithoautotrophically in a fed-batch fermentation. Samples withdrawn at different times (OD436 = 3.7, 20, and 52) were spread on mineral salts medium agar plates containing 0.4% fructose (FN) either with (+Tet) or without antibiotic. CFU on agar plates without antibiotic were set to 100%, and CFU obtained from the plates with antibiotic were referenced to them. The error bars represent standard deviations of triplicates.
