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| Effects of Cadmium Stress on Activities of Antioxidant Enzymes,Malonaldehyde Content and Cadmium Accumulation in Asian Swimming Crab Charybdis japonica |
| XU Xing-hong,YAN Bin-lun,XU Jia-tao,PAN Nai-lu,TANG Yao,DU Dan-dan,ZHANG Yan-qiu |
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Abstract The activities of superoxide dismutase (SOD) and catalase (CAT) ,and content of malonalde-hyde (MDA) were determined in Asian swimming crab Charybdis japonica exposed to different cadmium (Cd) levels including 0 mg/L in control group ,0 .0025 mg/L and 0 .005 mg/L in LC groups ,0 .05 mg/L and 0 .1 mg/L in MC groups ,and 0 .25 mg/L and 0 .5 mg/L in HC groups 0 ,1 ,3 ,5 ,7 ,10 ,15 and 30 days after the exposure .The Cd accumulation was detected in the hepatopancreas ,muscle ,ovary ,and gill at the 30th day .The results showed that the SOD and CAT activities were found to be elevated first and then to be declined after Cd exposure ,with more rapid induction in MC groups ,and HC groups than in LC groups .On days 15 and 30 ,the activities of SOD and CAT were significantly lower in the treatment groups than those in the control group except in 0 .0025 mg/L group ,with significant negative correlation with Cd concentration(P<0 .05) .The MDA contents were first increased ,then declined and elevated in the groups with Cd concentrations of 0 .005 ,0 .05 and 0 .1 mg/L .However ,the constant increase in MDA contents were observed in HC groups ,even though there was no significant change in MDA contents in the 0 .0025 mg/L group .Until the 10th day after exposure ,the MDA contents were significantly higher in the treat-ment groups than that in the control ,showing a positive correlation with Cd concentration ,except in 0 .0025 mg/L group .There was more Cd accumulation in the hepatopancreas and gill ,while minute a-mounts of Cd was detected in the ovary and muscle in the HC groups .Significant effect-dosage relation-ships were observed between the accumulation content and Cd concentration in the hepatopancreas in the treatment groups .There were more Cd accumulation in the gills than that in hepatopancreas in MC and HC groups .
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Received: 25 September 2014
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| Cite this article: |
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XU Xing-hong,YAN Bin-lun,XU Jia-tao, et al. Effects of Cadmium Stress on Activities of Antioxidant Enzymes,Malonaldehyde Content and Cadmium Accumulation in Asian Swimming Crab Charybdis japonica[J]. Fisheries Science, 2014, (9): 551-555.
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| URL: |
| http://www.shchkx.com/EN/ OR http://www.shchkx.com/EN/Y2014/V/I9/551 |
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