What Color Is E Coli On MacConkey Agar?
What Color Is E Coli On MacConkey Agar? Organism Colour Remarks Escherichia colired/pink non-mucoid Aerobacter aerogenes pink mucoid Enterococcus species red minute, round Staphylococcus species pale pink opaque Why is E. coli pink on MacConkey agar? By utilizing the lactose available in the medium, Lac+ bacteria such as Escherichia coli, Enterobacter and Klebsiella will produce