不同Cu污染对花生POD、SOD活性及土壤酶活性的影响  

The Effects of the Different Cu Pollution on POD,SOD Activities in the Peanut and Soil Enzymes Activities

作　　者：邵登辉[1] 沈章军[2] 储玲[1] 

机构地区：[1]重要生物资源保护与利用研究安徽省重点实验室 [2]合肥师范学院生物系,合肥230061

出　　处：《安徽师范大学学报（自然科学版）》2008年第3期269-273,共5页Journal of Anhui Normal University(Natural Science)

基　　金：国家重点基础研究发展规划项目(2004CB418503);国家自然科学基金(30470270);国家人事部留学回国人员科研择优资助计划项目;安徽省教育厅自然科学基金(2008KB219);安徽师范大学博士科研启动基金

摘　　要：通过盆栽实验研究不同Cu浓度梯度处理对花生幼苗成活率、初花期生理生态指标及土壤酶活性的影响.结果表明,随着Cu浓度的增加,花生的萌发和成活率明显下降,花期叶片中SOD和POD活性出现先增加后又下降的趋势,电导率增大,色素含量降低,花生开花期植株生物量降低,株高、根长减短;土壤中5种酶活性皆有所下降,对Cu的敏感程度表现为脲酶>磷酸酶>过氧化氢酶>多酚氧化酶>蔗糖酶.Based on the pot experiments, the effects of Cu pollution on eco-physiological index of peanut and five kinds of soil enzymes activities were studied in this paper. The results showed that the low concentration of Cu （≤300mg·kg^-1） had no obvious effects on peanut. But as Cu concentration increased, there existed obvious negative effects such as the SOD and POD activities and the electric conductivity of peanut leaves increased, the living index and contents of chlorophyll and fresh weight and root length decreased. Moreover, the soil enzymes activities decreased while the Cu concentration increased.

关 键 词：Cu 花生 生理生态指标 土壤酶 

分 类 号：X171.5[环境科学与工程—环境科学]