Corn (Zea mays L. ) plants nitric oxide toxicity of cadmium in the investigation of the relationship between

In this study, after corn to seedlings were applied to different SNP (25 and 50 µM) concentrations, it investigated that gave against the different cadmium (25, 50 and 75 µM) concentrations of these seedlings on physiological and biochemical responses. Fifteen days seedlings of corns (Zea mays L.) were made use of studying material. Seedlings in all applications made from root hydroponic method was preferred. The seedlings were divided into three groups and these groups were made first SNP application throughout forty-eight hours. After that, these three groups to except controls (pure water and SNPs) were separately applied different concentrations of cadmium. The seedlings in which they had treated differently detected growth parameters such as the amount height increase and dry weight per amount per green weight. In addition to proline analysis of root and leaf malondialdehyde (MDA), reduced glutathione (GSH), oxidized glutathione (GSSG), total fatty acid analysis, and pigment analysis of leaf were practised. According to the obtained results; growth parameters on SNP pre-applied seedlings had inhibiting effect that arised from application Cd in comparison with SNP pre intervention of the application. In the same way as the leaves pigment (chlorophyll (a + b) and carotenoids) found that the less destruction. The pre-applied seedlings of SNP reduced amount of malondialdehyde both roots and leaves; amount of proline reduce to roots and increased to leaves; the amount of glutathione increased roots and leaves; the amount of oxidized glutathione decreased leaf and root. The SNP as compared pre-intervention of the application, fatty acids changes during SNP pre-applied seedlings; palmitic acid were increased in roots, decreased in leaves; palmioleic acid decreased in leaf; stearic acid decreased in root; linoleic acid in roots increased and decreased in leaves; linolenic acid increased in leaves. Palmioleic acid and linolenic acid could not be found in the roots, also stearic acid could not be found in the leaves. When the results are evaluated in generally, 50 µm of SNP pre-appliced was more successful than 25 µM of SNP applied according to the suppress toxicity of Cd. Keywords: Corn, Nitric Oxide, SNP, Cadmium Toxicity, Oxidative damage.