Cr^(3+)胁迫对油菜幼苗抗氧化酶系统和MDA的影响  

Effect of Cr^(3+) Stress on Antioxidant Enzyme and MDA of Rape Seedlings

作　　者：王小平[1] 华春[1] 吴向华[1] 毛善国[1] 

机构地区：[1]南京晓庄学院生物化工与环境工程学院,南京211171

出　　处：《湖北农业科学》2011年第8期1537-1539,共3页Hubei Agricultural Sciences

基　　金：国家公益性行业(林业)科研专项经费项目(200904001-2-1)

摘　　要：在实验室条件下,研究不同浓度Cr3+对油菜幼苗抗氧化酶(SOD,POD,CAT)活力和丙二醛(MDA)含量的影响。结果表明,低浓度的Cr3+能够提高SOD、CAT和POD的活性,而高浓度的Cr3+降低SOD、CAT和POD的活性,SOD、POD、CAT活性峰值分别出现在Cr3+浓度为80 mg/L、80 mg/L和160 mg/L时。随着Cr3+浓度的增大,MDA的含量呈现升高的趋势,且先慢后快。Effect of different concentrations of Cr3＋ on antioxidant enzyme systems（SOD,POD,CAT） and MDA were studied under laboratory conditions.The results showed that the activities of SOD,CAT and POD increased under low concentration of Cr3＋ but decreased under high concentration.The activities of SOD and POD all had a resistant peak at 80 mg/L Cr3＋,and CAT reached the highest point at 160 mg/L Cr3＋.The content of MDA tended to increase with the Cd3＋ increasing and increased fast followed by slow.

关 键 词：油菜幼苗 CR3+ 抗氧化酶系统 MDA 

分 类 号：Q945.78[生物学—植物学]