Antioxidants
Peroxiredoxin (PRX) activity was determined according to Horling et al., (2003). Glutaredoxin (GRX) activity was determined according to Lundberg et al., (2001). Thioredoxin (TRX) activity was determined according to Wolosiuk et al. (1979). Ferredoxin activity was determined as described previously (Smillie, 1962).