现代农业科技Issue(14)：135-136,138,3.
铅胁迫对构树幼苗抗氧化酶活性的影响
Effects of Lead Stress on Antioxidant Enzyme Activity of Broussonetia papyrifera Seedlings
陈国维 1杨洪琴 1陈坤浩1
作者信息
- 1. 毕节学院地理与生命科学学院，贵州毕节 551700
- 折叠
摘要
Abstract
Using a potted planting experiment and lead-contaminated soil with different contamination degrees(100,300,500,700,and 1 000 mg/kg)as culture media,the effect of lead stress on antioxidase activity in the annual seedling leaves of Broussonetia papyrifera was studied. The results showed that,along with the increasing in lead ion concentration in culture media,the activities of superoxide dismutase and catalase in Broussonetia papyrifera seedling leaves increased firstly and then decreased,while the activity of peroxidase showed a general increasing trend as the lead concentration increased.Moreover,within the concentration range of the experiments,variations in the activity of these three enzymes were not significantly different compared to that in the control group,indicating that Broussonetia papyrifera had better lead tolerance and could be used as a restoration plant for lead-contaminated regions.关键词
铅胁迫/构树/超氧化物歧化酶/过氧化物酶/过氧化氢酶Key words
lead stress/Broussonetia papyrifera/superoxide dismutase/catalase/peroxidase分类
农业科技引用本文复制引用
陈国维,杨洪琴,陈坤浩..铅胁迫对构树幼苗抗氧化酶活性的影响[J].现代农业科技,2014,(14):135-136,138,3.
