Figure 3. Effect of iron on production of PV molecules.

Parallel cultures of WT-Y and WT-T strains were grown with and without supplements as described in Methods; siderophore and Abs₄₁₀ were assayed when cells reached 6×10⁸ cells ml⁻¹. Data represent the average of duplicate readings obtained after performing three independent tests comparing the endpoint against the cells used as inoculate. (A) change in siderophore WT-Y, (B) change in siderophore WT-T, (C) change in Abs ₄₁₀ WT-Y, and (D) change in Abs ₄₁₀ WT-T.