北京师范大学学报（自然科学版）Issue(1)：69-74,6.DOI:10.16360/j.cnki.jbnuns.2015.01.016
重金属 Cu 对土壤碱性磷酸酶活性的影响∗
Effects of Cu pollution on soil alkaline phosphatase activity
摘要
Abstract
Effects of Cu from earth samples of different depth on alkaline phosphatase (ALP)activity and dynamic parameters were analyzed.It was found that ALP activity increased with incubation,ALP activities of surface sample and sample with 50 cm depth firstly rose,and then declined with increasing Cu concentration, while ALP activities of sample with 100 cm depth decreased.Variations in changes of enzyme activity in samples were a result of different physical and chemical properties,especially organic matter content.Effects of Cu on V max and V max/K m were significant,and V max and V max/K m might serve as assisted reference index for evaluation of Cu pollution degree.Cu inhibition of ALP activity displayed a complex non-competitive and competitive mode.关键词
Cu/土壤污染/碱性磷酸酶/酶动力学特征Key words
copper/soil pollution/alkaline phosphatase/enzyme kinetic characteristics分类
资源环境引用本文复制引用
冯丹,王金生,滕彦国..重金属 Cu 对土壤碱性磷酸酶活性的影响∗[J].北京师范大学学报（自然科学版）,2015,(1):69-74,6.基金项目
环保公益性行业科研基金重大项目(201009009) （201009009）
