渔业科学进展2011，Vol.32Issue(1)：99-103,5.
Hg(Ⅱ)、Pb(Ⅱ)、Cd(Ⅱ)对中华哲水蚤总超氧化物歧化酶活性的影响
Effect of heavy metals, Hg( Ⅱ ), Pb( Ⅱ ), and Cd( Ⅱ ) on the activity of total superoxide dismutase in Calanus sinicus
摘要
Abstract
Research on the influence of heavy metals and other environmental pollutants on the antioxidant defense system has become one of the hotspots of ecological toxicology in recent years.Effects of three heavy metal ions, Hg( Ⅱ ), Pb( Ⅱ ), and Cd( Ⅱ ) on the activity of total superoxide dismutase (T-SOD) in the tissue of Calanus sinicus were examined through outside body sublethal toxicity testing.The results showed that the T-SOD activity changed markedly under prolonged exposure to these ions.The activity of T-SOD reached the maximum at 12 hours, when Hg( Ⅱ ) concentrations were 0.001 3～0.005 3 mg/L.When the concentrations of Pb( Ⅱ ) were 0.468 0, 0.936 0, and 1.872 0 mg/L, the activity of T-SOD reached the maximum at 36 h, 24 h, and 12 h, respectively.Effects of Hg( Ⅱ ) and Ph( Ⅱ ) on the SOD activity increased first and then decreased during the prolonged exposure.The activities of SOD underwent a course of increase-decrease-increase-decrease in the presence of Cd( Ⅱ ).At all the three concentrations of Cd( Ⅱ ), the activity of T-SOD reached the maximum at 12 hours.关键词
中华哲水蚤/Hg(Ⅱ)/Pb(Ⅱ)/Cd(Ⅱ)/总超氧化物歧化酶(T-SOD)Key words
Calanus sinicus / Hg( Ⅱ ) / Pb( Ⅱ ) / Cd( Ⅱ )/Total superoxide dismutase(T-SOD)分类
生物科学引用本文复制引用
陈志鑫,朱丽岩,周浩,戚本金,刘晨..Hg(Ⅱ)、Pb(Ⅱ)、Cd(Ⅱ)对中华哲水蚤总超氧化物歧化酶活性的影响[J].渔业科学进展,2011,32(1):99-103,5.基金项目
山东省908专项(SD-908-01-01-05.06)资助 （SD-908-01-01-05.06）
