Class III peroxidases are activated in proanthocyanidin-deficient Arabidopsis…

Background and Aims: It has previously been shown that proanthocyanidins (PAs) in the seed coat of Arabidopsis thaliana have the ability to scavenge superoxide radicals (O2-). However, the physiological processess in PA-deficit seeds are not clear. It is hypothesized that there exist alternative ways in PA-deficient seeds to cope with oxidative stress. Methods: The content of hydrogen peroxi…