Fig. 6. Stimulation of H2O2 production in L.
stagnalis haemocytes by laminarin. The generation of
H2O2 was investigated in (A) haemocytes stimulated with
different doses of laminarin (1-10 mg ml-1) for 30 min, and (B) in
haemocytes stimulated with laminarin (10 mg ml-1) over 30 min.
Values are relative fluorescence (mean ± s.d.) of two independent
experiments, each done in triplicate. *P
0.05,
**P
0.01 and ***P
0.001 when
compared to control (unstimulated) values.