天津科技大学学报Issue(5)：48-52,5.DOI:10.13364/j.issn.1672-6510.20140154
Cd2+对毛蚶的毒性效应及对其SOD活性和TAOC的影响
Toxic Effects of Cadmium on Anadara Subcrenata as well as its SOD Activity and Total Antioxidative Competence
摘要
Abstract
The acute toxicity of CdCl2 on Anadara subcrenata as well as its SOD activity and total antioxidative compe-tence have been studied under experimental conditions. The result showed that the LC50 of cadmium exposed to Anadara subcrenata for 24,48,72 and 96 hours were 24.88,14.52,10.54 and 6.20 mg/L,respectively. With the increase of exposure time,the LC50 value decreased gradually,which indicated that the acute toxicity of CdCl2 on Anadara subcrenata increased with the increase of exposure time,and Anadara subcrenata would face lethal risk after being exposed to low concentration CdCl2 solution for a long time or to high concentration CdCl2 solution for a short time. The SOD activity and TAOC value were measured after Anadara subcrenata being exposured to different concentrations(100,µg/L,500,µg/L)of cadmium sepa-rately for 9 days and then recovered in clean water. The results showed that the SOD activity and TAOC were induced. The SOD activity reached the maximum at the 9th day,the induction rates of TAOC reached the peak value after 7 days con-tamination and then declined. The SOD activity fell after Anadara subcrenata was transferred to clean water,but the differ-ence of TAOC was not significant,which indicated that Anadara subcrenata cannot recover from the stress effects of Cd2+in a short time.关键词
Cd2+/毛蚶/急性毒性/超氧化物歧化酶(SOD)/总抗氧化能力(TAOC)Key words
Cd2+/Anadara subcrenata/acute toxicity/superoxide dismutase(SOD)/total antioxidative compe-tence(TAOC)分类
资源环境引用本文复制引用
阎波,李英,高楠,詹志华,高杨,张静雯..Cd2+对毛蚶的毒性效应及对其SOD活性和TAOC的影响[J].天津科技大学学报,2015,(5):48-52,5.基金项目
天津市应用基础与前沿技术研究计划资助项目(15JCYBJC23200)；天津科技大学大学生实验室创新基金资助项目(1305A207) （15JCYBJC23200）
