Figure 2.

Growth of different yeast strains in the amoebae plate test. (A) Different S. cerevisiae strains show different growth characteristics during co-incubation with D. discoideum AX2. Baker's and Brewer's yeast grew very well, whereas all laboratory strains tested, as well as flocculating strains, grew only poorly. Bloodstream isolates of S. cerevisiae showed intermediate growth. (B) Pathogenic Candida species grew very well on plates containing D. discoideum. (C) Non-axenic social amoebae could not reduce yeast growth, independently of the strain used. For better visualization, results were assembled from different plates in all plate tests. All plate tests were repeated at least three times by different people.