南方农业学报2011，Vol.42Issue(11)：1337-1339,3.
重金属铜影响香蕉幼苗生长的机理初探
Influence of copper on growth of Musa AAA ca vendish var.Brasil seedlings
摘要
Abstract
[Objective]The present experiment was conducted to investigate the physiological and chemical response of banana seedlings to copper stress in order to provide basis for forecasting, evaluation and control of banana pollution. [Method ]The seedling of Musa AAA cavendish var. Brasil was treated with 0.04, 0.05, 0.06 and 0.07 mol/L copper solution at 5-leaf stage to determine their effects on different index of Musa AAA cavendish var. Brasil. [ Result ]The results showed that under Cu stress, the relative conductivity and malondialdehyde (MI)A) content increased, while the SOD activity and soluble protein decreasd. The toxic effects of Cu on seedlings increased significantly with increasing Cu concentration and duration of stress. [ Conclusion ] Heavy metal stress increase the production of reactive oxygen species and free radicals in plant, aggravate the membrane peroxidation, enhance the membrane permeability and exosmosis of electrolyte to certain degree, which finaly led to the death of plants.关键词
香蕉幼苗/铜胁迫/生长/生理指标Key words
banana seedlings/ copper stress/ growth/ physiological index分类
农业科技引用本文复制引用
从心黎,黄绵佳,曾丽萍,吴岚芳,陈洋..重金属铜影响香蕉幼苗生长的机理初探[J].南方农业学报,2011,42(11):1337-1339,3.基金项目
农业部公益性行业科研专项经费项目 (nyhyzx07-029) （nyhyzx07-029）
