摘要
The metallothionein（MT） concentration in hepatopancreas of Litopenaeus vannamei changed significantly with the increasing of metal ions concentration and prolongation of exposure time（P<0.05）,whereas that in the control groups had no marked changes（P>0.05）.Exposed to three heavy metal ions,the MT concentration in hepatopancreas changed very significantly in 6 h（P<0.01）. The MT concentration inducted by Cu2+(0.1,0.2,0.5,1 mg·L-1), Zn2+(1,2, 5 mg·L-1)and Cd2+(0.05,0.1 mg·L-1)increased in 96 h with time and changed stably after 48 h.In addition,the MT concentration inducted by Zn2+(10 mg·L-1) and Cd2+(0.25,0.5 mg·L-1)was up to max.at 48 h,began to decrease with time passing by,and still higher than that in the control groups.Meanwhile the inductive ratio of three heavy metal ions on metallothionein concentration were Cd2+>Cu2+>Zn2+ in experimental time.
The metallothionein （MT） concentration in hepatopancreas of Litopenaeus vannamei changed significantly with the increasing of metal ions concentration and prolongation of exposure time （ P 〈 0.05 ）, whereas that in the control groups had no marked changes （ P 〉 0.05 ）. Exposed to three heavy metal ions, the MT concentration in hepatopancreas changed very significantly in 6 h （P〈0.01）. The MTconcentration inducted by Cu^2＋（0.1, 0.2, 0.5, 1 mg·L^-1）, Zn^2＋（1, 2, 5 mg·L^-1） and Cd^2＋ （0.05, 0.1 mg·L^-1 ） increased in 96 h with time and changed stably after 48 h. In addition, the MT concentration inducted by Zn^2＋ （ 10 mg·L^-1 ） and Cd^2＋ （0.25, 0.5 mg·L^-1） was up to max. at 48 h, began to decrease with time passing by, and still higher than that in the control groups. Meanwhile the inductive ratio of three heavy metal ions on metallothionein concentration were Cd^2＋ 〉Cu^2＋ 〉Zn^2＋ in experimental time.
出处
《水产学报》
CAS
CSCD
北大核心
2005年第5期715-718,共4页
Journal of Fisheries of China
基金
山东省科技兴海项目<低盐度地下卤水凡纳滨对虾养殖技术的开发研究>资助(2001-3-6)
关键词
重金属离子
凡纳滨对虾
肝胰脏
金属硫蛋白
heavy metal ions
Litopenaeus vannamei
hepatopancreas
metallothionein（MT）
