Comparative growth of Eikenella corrodens on 15 media in three atmospheres of incubation.

The abundance of growth and size of colonies of 10 isolates of Eikenella corrodens were studied using 15 commonly available media in aerobic, 5% CO2, and anaerobic atmospheres of incubation. Chocolate agar was the best medium for overall growth in all three atmospheres. Growth on Mueller-Hinton agar supplemented with 5% blood and on Brucella agar supplemented with 5% blood was equivalent to that on chocolate agar in 5% CO2 and anaerobic environments but not in an aerobic atmosphere. Strains of E. corrodens did not grow on the selective media studied. Growth on media without blood or hemin supplements occurred in anaerobic but not in aerobic or 5% CO2 environments, and was consistently poorer than growth on the same media with these supplements.