摘要
[目的]研究紫叶李对重金属镉和铅胁迫的生理响应。[方法]研究不同浓度镉（10、30、50、100、150、200 mg／kg）、铅（50、100、500、1000、1500、2000 mg／kg）对紫叶李的相对电导率、丙二醛和叶绿素含量的影响。[结果]随着镉浓度和铅浓度的升高，紫叶李的相对电导率和丙二醛含量总体呈升高趋势，叶绿素含量明显降低，在铅浓度2000 mg／kg和镉浓度200 mg／kg时，叶绿素含量分别较对照降低60．9％和50．1％。[结论]紫叶李是一种抗重金属能力较强的植物。
Abstract
Objective] The aim was to study physiological response of Prunus cerasifera to cadmium, lead stress.[ Method] Effects of differ-ent concentrations of cadmium (10, 30, 50, 100, 150, 200 mg/kg) and lead(50, 100, 500, 1 000, 1 500, 2 000 mg/kg) on relative elec-trical conductivity, MDA content and chlorophyll content were studied.[ Result] With the increase of cadmium concentration and lead con-centration, the relative electrical conductivity and MDA content showed an increasing trend, chlorophyll content decreased significantly.When lead concentration was 2 000 mg/kg and cadmium was 200 mg/kg, the chlorophyll content was decreased by 60.9% and 50.1% respectively compared with control.[ Conclusion] Prunus cerasifera is a kind of heavy metal resistant plant.
基金项目
佳木斯大学研究生科技创新项目(LZR2015＿005)
国家科技期刊平台
NSTL
万方数据