title: [Effects of heavy metal ions on SOD activity of Litopenaeus vannamei hepatopancreas, gill and blood].
abstract: This paper studied the effects of Cu2+ , Zn2+ and Cd2+ on the superoxide dismutase (SOD) activity of Litopenaeus vannamnei hepatopancreas, gill and blood. The results showed that the SOD activity changed significantly with prolonged exposure of these ions (P < 0.05). The SOD activity of all test objectives changed with a single peak under the exposure of 0.1 - 1 mg Cu2+ x L(-1), that of hepatopancreas and of hepatopancreas and gills was inhibited obviously under 10 mg Zn2+ x L(-1) and 0.5 mg Cd2+ x L(-1), respectively, while 0.25 mg Cd2+ x L(-1) had no significant effect on that of gill. The SOD activity of hepatopancreas, gill and blood all increased first and then decreased under the prolonged exposure of < 10 mg Zn2+ x L(-1) and < 0.25 mg Cd2+ x L(-1). There was an obvious dose-time response relationship between test metal ions and SOD activity. The SOD activity was decreased in order of hepatopancreas > gill > blood, while the toxicity of test metal ions was in order of Cd2+ > Cu2+ > Zn2+.
authors.affiliation: Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, China.
authors.forename: Zhongwang
authors.initials: Z
authors.lastname: Wu
authors.forename: Luqing
authors.initials: L
authors.lastname: Pan
authors.forename: Hongxia
authors.initials: H
authors.lastname: Zhang
mesh_terms: D000818:Animals; D002104:Cadmium / Q000633:toxicity; D003300:Copper / Q000633:toxicity; D005880:Gills / Q000201:enzymology*; D043143:Hepatopancreas / Q000201:enzymology*; D019216:Metals, Heavy / Q000633:toxicity*; D033561:Penaeidae / Q000187:drug effects* / Q000201:enzymology; D013482:Superoxide Dismutase / Q000097:blood / Q000378:metabolism*; D015032:Zinc / Q000633:toxicity
chemical_list: D019216:Metals, Heavy; D002104:Cadmium; D003300:Copper; D013482:Superoxide Dismutase; D015032:Zinc