[Effects of cadmium stress on the antioxidative system in Ganoderma lucidum mycelia].

Abstract

The study on the effects of different concentration (0, 10, 50, 100, 200 and 400 micromol x L(-1)) cadmium (Cd) on the antioxidative system in Ganoderma lucidum mycelia indicated that with increasing concentration of Cd, the fresh mass and the proline, total polysaccharides, and reduced polysaccharides contents of G. lucidum mycelia decreased, but non-protein thiol (NPT) content increased. At 400 micromol x L(-1) of Cd, the NPT content increased dramatically, being 5.7 times higher than control. Within the range of test Cd concentrations, the activities of CAT, GR and POD increased first and decreased then, with the peak at 100 micromol x L(-1) of Cd, while the activities of LOX and SOD increased with increasing Cd concentration, with the maximum at 400 micromol x L(-1) of Cd. Polyacrylamide gel electrophoresis analysis revealed that 100-400 micromol x L(-1) of Cd induced two additional isozymes bands of Mn-SOD, 10-200 micromol x L(-1) of Cd increased the intensity of constitutive isozymes of CAT, POD, SOD and LOX, while 400 micromol x L(-1) of Cd decreased the intensity of isozymes of POD significantly.

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@article{Wang2008EffectsOC, title={[Effects of cadmium stress on the antioxidative system in Ganoderma lucidum mycelia].}, author={Song-hua Wang and Hua Zhang and Yuan-rong Cui and Qing-yuan He and Qiang Zhang}, journal={Ying yong sheng tai xue bao = The journal of applied ecology}, year={2008}, volume={19 6}, pages={1355-61} }