Figure 1.

Cellular location of ROS scavenging pathways in plant cells. The GPX and Prx pathways are indicated in dashed and dotted lines in the cytosol and stroma. Asc, ascorbate; AOX, alternative oxidase; APX: ascorbate peroxidase; CuZnSOD, copper-zinc superoxide dismutase; DHA, dehydroascrobate; DHAR, DHA reductase; FD, ferredoxin; FeSOD; iron superoxide dismutase; FNR, ferredoxin NADPH reductase; GLR, glutaredoxin; GPX, glutathione peroxidase; GR, glutathione reductase; GSH, reduced glutathione; GSSG, oxidized glutathione; MDA, monodehydroascorbate; Prx, Peroxiredoxin; MDAR, MDA reductase; PSI, photosystem I; PSII, photosystem II; tAPX: thylakoid APX; Trx, thioredoxin; Adapted from Mittler et al., 2004.