Superoxide dismutase activity in salt stressed wheat seedlings

Eyidogan, F
Öktem, Hüseyin Avni
Yucel, M
We investigated the effect of salt stress on enzymatic activity of superoxide dismutase (SOD) isozymes in shoot and root tissues of salt tolerant and sensitive wheat (Triticum aestivum L. and Triticum durum Defs.) cultivars. Ten day old seedlings were subjected to 0.7 M NaCl stress for 3 and 5 days. Seedlings treated in the same manner without salt stress served as controls. Activity of SOD isozymes in root and shoot extracts was determined by activity staining of native polyacrylamide gels. In both shoot and root extracts of examined cultivars two isozymes of SOD, namely MnSOD and Cu/ZnSOD were identified. Cu/ZnSOD activity comprised 90 % of total SOD activity in both root and shoot tissues. Salt stress caused 1-1.5 fold increase in MnSOD activity of shoots in tolerant cultivars when compared with non-stressed controls. Under stress conditions, compared to controls all cultivars exhibited reduced MnSOD activity in root tissues. Cu/ZnSOD activity, on the other hand, was remarkably enhanced (3-4 fold) in root extracts of the tolerant cultivars, whereas it was reduced in the sensitive ones.


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Bandeoglu, E; Eyidogan, F; Yucel, M; Öktem, Hüseyin Avni (2004-01-01)
The effect of salt stress (100 mM and 200 mM NaCl) on antioxidant responses in shoots and roots of 14-day-old lentil (Lens culinaris M.) seedlings was investigated. Salt stress caused a significant decrease in length, wet-dry weight and an increase in proline content of both shoot and root tissues. In leaf tissues, high salinity treatment resulted in a 4.4 fold increase in H2O2 content which was accompanied by a significant level of lipid peroxidation and an increase in electrolyte leakage. Root tissues wer...
Superoxide dismutase activity of hexaploid and tetraploid wheat cultivars subjected to heat and chilling stress
Eyidogan, F; Öktem, Hüseyin Avni; Yucel, M (2003-01-01)
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Biochemical analysis of trehalose and its metabolizing enzymes in wheat under abiotic stress conditions
El-Bashiti, T; Hamamcı, Haluk; Öktem, Hüseyin Avni; Yucel, M (2005-07-01)
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Generating salt-tolerant Nicotiana tabacum and identification of stress-responsive miRNAs in transgenics
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Citation Formats
F. Eyidogan, H. A. Öktem, and M. Yucel, “Superoxide dismutase activity in salt stressed wheat seedlings,” ACTA PHYSIOLOGIAE PLANTARUM, pp. 263–269, 2003, Accessed: 00, 2020. [Online]. Available: