铅胁迫对4种苗木叶片过氧化物酶和超氧化物歧化酶的影响  

Effects of Pb Stress on POD and SOD of Leaves of 4 Species of Street Tree

作　　者：吴际友[1] 王旭军[1] 程勇[1] 刘球[1] 唐水红[1] 李斌 刘欲晓 彭早珍 

机构地区：[1]湖南省林业科学院,长沙410004 [2]湖南省第二建筑公司,长沙410004 [3]湖南省攸县林业局,湖南攸县412300

出　　处：《中国城市林业》2011年第5期9-12,16,共5页Journal of Chinese Urban Forestry

基　　金：国家"十二五"科技支撑项目城镇景观生态林建设试验与示范(2011BAD38B03)

摘　　要：在湖南省林业科学院林场苗圃内对香樟(Cinnamomum camphora)、深山含笑(Michelia maudiae)、栾树(Koelreuteria paniculata)、鹅掌楸(Liriodendron chinense)4个树种的1年生幼苗进行铅胁迫试验,设定Pb2+浓度为对照、50mg/L、400mg/L、800mg/L、1600mg/L共5个水平,每一处理重复3次,研究不同铅浓度对4种行道树幼苗叶片过氧化物酶(POD)和超氧化物歧化酶(SOD)的影响,得出苗期试验结果。Pb stress experiment were carried out on 1-year-old seedlings of 4 species of street tree including Cinnamomum camphora,Michelia maudiae,Koelreuteria paniculata and Liriodendron chinense in the experimental nursery of Hunan Academy of Forestry.The Pb2＋ concentration was chosen as the control （no Pb2＋）,while 50 mg/L,400 mg/L,800 mg/L and 1600 mg/L were set for the experiment,each with 3 replicates.The experiment was done to study the effect of different Pb concentrations on POD and SOD of leaves of the 4 species of street tree.The experiment results were finally obtained for the effect.

关 键 词：铅胁迫 行道树 过氧化物酶 超氧化物歧化酶 交互效应 

分 类 号：X173[环境科学与工程—环境科学]