Abstract
The cadmium (Cd2+) and lead (Pb2+)-induced changes in Cu,Zn-SOD gene expression on the level of mRNA accumulation and enzyme activity were analyzed in roots of soybean (Glycine max) seedlings. The Cd2+ caused the induction of copper–zinc superoxide dismutase (Cu,Zn-SOD) mRNA accumulation, at each analyzed metal concentration (5–25 mg/l), whereas in Pb2+-treated roots this effect was observed only at the medium metal concentrations (50–100 mg/l of Pb2+). The analysis of Cu,Zn-SOD activity proved an increase in enzyme activity during Cd2+/Pb2+ stresses, however in Pb2+-treated plants the activity of enzyme was not correlated with respective mRNAs level. Presented data suggest that different metals may act on various level of Cu,Zn-SOD expression in plants exposed to heavy metals stress.
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Pawlak, S., Firych, A., Rymer, K. et al. Cu,Zn-superoxide dismutase is differently regulated by cadmium and lead in roots of soybean seedlings. Acta Physiol Plant 31, 741–747 (2009). https://doi.org/10.1007/s11738-009-0286-3
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DOI: https://doi.org/10.1007/s11738-009-0286-3