Fig. 6. Malonedialdehyde (MDA) concentrations and AOX (catalase and superoxide
dismutase, SOD) activities in Mya arenaria tissues after experimental
warming of live animals. Experimental groups: t-1, stepwise warming to 18
°C; t-2, stepwise warming to 25 °C (1 °C per day), t-3, direct
transfer from 10 to 25 °C (heat stress); c-1 to c-3, respective controls
kept at constant 10 °C for the same time as the `temperature groups'.
Measurements were taken at 20 °C (B,C) and at the respective maintenance
temperature (incub-T) (D,E). (A) malonedialdehyde concentrations (MDA) in
mantle tissue, (B,D) catalase mantle tissue, (C,E) SOD gill tissue. Data are
means ± S.D. from 4-10 animals, *P<0.05,
**P<0.01, values significantly different from
controls.
