The Effects of Perfluorooctane Sulfonate (PFOS) on Germination and Physiological Status of Rice Seedlings

Seeds of rice were treated with serial concentrations of perfluorooctane sulfonate (PFOS) for observation of germination and development. PFOS of 150 mg/L dose resulted in a germinability rate of 87% and a germination rate of 88%, which was 96% and 97% respectively in control group. PFOS dose ≥120 mg/L all resulted in visible poor growth by seedlings falling or death. PFOS dose ≥90 mg/L inhibited chlorophyll a content, catalase activity, peroxidase activity and superoxide dismutase activity in the leaves (P<;0.05). PFOS ≥120 mg/L also resulted in an increasing of MDA the leaves of seedlings (P<;0.05).