FIG. 4.

Pythium ultimum biomass development on cucumber (A) and corn (B) seeds in the presence of E. cloacae strain Ec31 (○) or EcCT-501R3 (•). Seeds were exposed to Pythium for 4, 8, and 12 h, after which amounts of P. ultimum DNA were determined using qPCR. Seeds that were inoculated but not treated with E. cloacae (▪) and noninoculated seeds (□) served as positive and negative controls, respectively. Each point with the error bars represents the mean ± standard deviation of six seeds from two repeated experiments. Note the different y axes.