احمد آقایی

Nowadays, nanotechnology applications in the field of wide area of the Science, especially agriculture is developing. In this research, the main objective is investigation of the effects of silver nanoparticles (AgNPs) and silver nitrate (AgNO3) on antioxidant enzyme activities catalase (CAT), ascorbate peroxidase (APX) and guaiacol peroxidase (GPX) in deadly nightshade (Atropa belladonna L.) medicinal plant belongs to Solanaceae family. Plants were treated with different concentrations of AgNPs and AgNO3 (0, 25 and 50 mg L-1). Results showed that the total protein contents of root and shoot samples in all treatments increased significantly, and the highest level of total protein content related to 50 mg L-1 AgNPs in shoot. In most treatments, CAT, APX and GPX enzyme activities indicated reduction. However, CAT and APX enzyme activities increased in AgNPs treatments of shoot samples. Our results suggest that AgNPs in appropriate level (50 mg L-1) may act as an elicitor for biochemical responses in A. belladonna medicinal plants.