Abstract
There is no report on panadol mediated changes in antioxidant system and osmoprotectants of Vigna radiata plants. An experiment was carried out to dissect the response of activities of antioxidant enzymes, stress biomarkers and proline accumulation in the presence of panadol in Vigna radiata plants. 10 days after germination, a range of panadol concentration (0.0005, 0.01, 0.1 or 1.0 ppm) was administered to the foliage of Vigna radiata plants, at the end of germination process (30 days from the beginning of germination) the plants were sampled to evaluate stress biomarkers, leaf water potential, antioxidant enzymes and proline content. The results demonstrate that the highest concentration of panadol was 1.0 ppm that induced oxidative stress that was noticeable via increasing levels of lipid peroxidation, and H2O2 accumulation in Vigna radiata plants. On the other hand, 0.1 ppm of PD treatment modified the antioxidant system and the range of osmolytes to make the plants tolerate unfavorable conditions and helped to increase gross production through increasing photosynthetic activity.