Fig. 7. Inhibition of laminarin-mediated H₂O₂ generation in haemocytes. The production of H₂O₂ was investigated in haemocytes pre-incubated with the PKC inhibitors (A) GF109203X (0.01-10 µmol l^-1) and (B) Gö 6976 (0.01-10 µmol l^-1), or (C) the NADPH oxidase inhibitor apocynin (10-500 µmol l^-1), for 30 min prior to stimulation with laminarin (10 mg ml^-1). Values are means ± s.d. of two independent experiments each performed in triplicate. ^*P0.05, ^**P0.01 and ^***P0.001 when compared to H₂O₂ production in stimulated haemocytes not exposed to either inhibitor (shown as 100%, broken line).