Figure 5: Extracellular production of H₂O₂.

H₂O₂ production after addition of algicide IRI-160AA to P. minimum (dashed line), K. veneficum (dotted line) and G. instriatum (solid line). Points represent the net [average concentration in treatment – average concentration in control; (n = 2)] change in H₂O₂ production (μM) per cell, normalized to cell bio-volume. The break in data for P. minimum was due to electrical interference. The inset figure represents algicidal activity associated with the H₂O₂ experiment where a third replicate was run alongside the H₂O₂ sensors. For inset: error bars represent one standard deviation of the mean (n = 3).