镉离子对克氏原螯虾超氧化物歧化酶活力的影响  

Effects of Cd^2+on the Activity of Superoxide Dismutase in Procambarus Clarkii

作　　者：吴晓敏 Wu Xiaomin(Putian Food and Drug Evaluation and Certification Center,Putian 351100,China)

机构地区：[1]莆田市食品药品审评认证中心,福建莆田351100

出　　处：《现代食品》2020年第9期209-211,共3页Modern Food

摘　　要：在实验室条件下,研究重金属离子Cd^2+对克氏原螯虾鳃和肝胰腺中超氧化物歧化酶活性的影响,重金属离子按照其对克氏原螯虾96 h的半致死浓度的0、1/5、1/3、1/2和1倍设置实验梯度。结果显示:在0~3.74 mg·L^-1Cd^2+浓度的范围内,SOD酶活性随着重金属浓度的增加表现为先增加后降低的趋势;Cd^2+对克氏原螯虾鳃和肝胰腺SOD酶活性表现为诱导作用,这种诱导作用随时间的延长而下降。Under laboratory conditions,the effects of heavy metal ion Cd^2+on the activity of superoxide dismutase in gill and hepatopancreas of crayfish were studied.The experimental gradients were set according to 0,1/5,1/3,1/2 and 1 times of the half lethal concentration of heavy metal ion to crayfish for 96 hours.The results showed that in the range of 0~3.74 mg·L-1Cd^2+,SOD activity increased first and then decreased with the increase of heavy metal concentration,and Cd^2+induced SOD activity in gill and hepatopancreas of crayfish,which decreased with the increase of time.

关 键 词：重金属离子 克氏原螯虾 超氧化物歧化酶 

分 类 号：S966.12[农业科学—水产养殖]