Figure 2

Enterobacter aerogenes and Aeromonas hydrophila that invaded and/or were taken up by Acanthamoeba castellanii . Assays were performed to determine bacterial invasion into or phagocytosis by A. castellanii as described in “Methods”. (A) represents ratio of bacteria per amoeba, while (B) represents bacteria associated with amoeba (% of the original inoculum). Results are represented as the mean ± standard error of three independent experiments performed in duplicate.