硝酸酸雾对拟南芥的毒性效应研究
Environmental Engineering(2013)
Abstract
采用拟南芥植物检测技术,考察了硝酸烟雾暴露条件下拟南芥生长状况及叶片中叶绿素含量、活性氧代谢、丙二醛(MDA)和蛋白羰基(PCO)等几种指标的变化情况,旨在为硝酸烟雾的生态毒理学效应研究提供试验依据。结果表明,硝酸烟雾可引起拟南芥叶片发黄萎蔫等病理反应,时间依赖性地降低叶绿素含量和氧自由基产生速率,并增加MDA和PCO含量,提示硝酸烟雾可通过诱导氧化应激造成植物损伤。
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Key words
MDA,reactive oxygen,nitric acid fog,arabidopsis thaliana L.,chlorophyll
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