Effects of Acetone O-(2-naphtylsulphonyl)oxime Pre-application on Maize Seedlings Under Cadmium Stress

Abstract

We aimed to elucidate the role of O-(2-naphthylsulfonyl)oxime (ANSO) in maize under cadmium stress. The control will be kept in distilled water for 18 hours, the second group will be kept in ANSO (0.3 mM) for 6 hours and then in distilled water for 12 hours, the third group will be in distilled water for 6 hours and then in cadmium solution (100 μM) for 12 hours, fourth group ANSO (0.3 mM) for 6 hours, followed by 12 hours of cadmium solution (100 µM). When ANSO+Cd application is compared to Cd, the cadmium content increased 7.8 times, while the ABA content decreased. RWC, which was reduced by Cd stress, was not changed by ANSO pre-treatment. Chlorophyll content, which decreased with Cd treatment, increased with ANSO+Cd treatment. While the carotenoid content increased with Cd application, it increased much with ANSO+Cd application. The H2O2 content and lipid peroxidation increased in the plant with Cd stress and decreased with ANSO pre-treatment. With ANSO+Cd, GPX activity decreased compared to Cd treatment, but CAT and APX values increased. ANSO pre-treatment did not significantly change SOD activity. Cd application increased proline content compared to control, but proline content decreased compared to Cd with ANSO pre-treatment. In ANSO+CD, ascorbic acid, cinnamic acid and catechol values increased compared to the values in plants treated with Cd, but the trans-coumaric acid value decreased. It can be said that ANSO application to maize under Cd stress provides the preservation of the ion balance of the cells by chelating Cd+2.