Effects of the toxic dinoflagellate Alexandrium tamarense on MDA,SOD and GST in hepatopancreas and gill of Fenneropenaeus chinensis

Q4 Environmental Science

水产学报 Pub Date : 2013-01-01 DOI:10.3724/SP.J.1231.2013.38501

Zhongxiu Liang, Li Jian, Zhijun Tan, Jitao Li, Junping Liang, Hongxing Ge

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Abstract

This study probes into effects of the toxic dinoflagellate Alexandrium tamarense(ATHK),a producer of paralytic shellfish poison,on antioxidant system of Chinese shrimp Fenneropenaeus chinensis,an important mariculture species in China.The shrimp were intramuscularly injected the crude toxin extracted from A.tamarense cells.The dose injection was carried out only one time during the experiment,using extracted solution from 1.4×103 algae cells.Superoxide dismutase(SOD)activity,glutathione-S-transferase(GST)activity and malondialdehyde(MDA)content were analyzed in hepatopancreas and gill at 1,3,6,12,24 and 48 h after stress.SOD activity and GST activity in hepatopancreas and gill increased within 6 h.However,they were inhibited in gill at 12 h and 48 h after stress.MDA content in hepatopancreas had no significant change except at 1 h after stress,but increased in gill with time prolonging.The results indicated that the crude toxin extracted from A.tamarense cells could cause lipid peroxidation in gill of F.chinensis by induction of MDA increase and SOD and GST inactivation.

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有毒鞭毛藻tamarense Alexandrium对中国对虾肝胰腺和鳃中MDA、SOD和GST的影响

本研究探讨了产生麻痹性贝类毒素的有毒甲藻亚历山大藻(Alexandrium tamarense, ATHK)对中国重要海水养殖品种中国对虾(Fenneropenaeus chinensis)抗氧化系统的影响。将从塔玛氏A.tamarense细胞中提取的粗毒素肌内注射。实验过程中只进行一次剂量注射，使用1.4×103藻类细胞提取液。分别于应激后1、3、6、12、24和48 h测定肝胰腺和鳃超氧化物歧化酶(SOD)活性、谷胱甘肽- s转移酶(GST)活性和丙二醛(MDA)含量。肝胰脏和鳃中SOD活性和GST活性在应激后6 h内升高，但在应激后12 h和48 h，鳃中SOD活性和GST活性均受到抑制。除应激1 h外，肝胰脏MDA含量无显著变化，但随着应激时间的延长，肝胰脏MDA含量呈上升趋势。结果表明，粗毒素可诱导中华绒螯虾鳃脂质过氧化，使其MDA升高，SOD和GST失活。

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来源期刊

水产学报 Environmental Science-Management, Monitoring, Policy and Law

CiteScore

1.40

自引率

0.00%

发文量

5213

期刊介绍： "Fisheries of" mainly reflects the results of scientific research and development of the direction of aquaculture for domestic and foreign academic exchanges Fisheries Service. Mainly basic research published in Fisheries, aquaculture and proliferation of fishing waters environmental protection, preservation of aquatic products processing and utilization, fishing equipment, and other aspects of mechanical papers, research briefings and reviewed.