河南农业科学Issue(9)：79-82,4.
铜胁迫对鸢尾叶片叶绿素荧光参数的影响
Influence of Cu Stress on Chlorophyll Fluorescence Parameters of Iris tectorum Maxim
摘要
Abstract
In order to provide theoretical basis for treating waste water contained heavy metal using Iris tectorum Maxim.,the chlorophyll fluorescence parameters of Iris tectorum Maxim. under Cu stress condition were studied by hydroponics experiment.The results showed that under 30 mg/L Cu stress condition,with the increase of stress time,the efficiency of primary light energy conversion (Fv/Fm)and relative photosynthetic electron transport rate (ETR)of Iris tectorum Maxim.first decreased and then increased,photochemical quenching coefficient(qP)first increased and then decreased,and non-photochemical quenching coefficient (qN ) continuously decreased.Under 120 mg/L Cu stress condition,with the increase of stress time,Fv/Fm and qP continuously decreased,qN first increased and then decreased,and ETR first decreased and then increased.In conclusion,30 mg/L Cu could promote the photochemical electron delivery of PSⅡreaction center,and high concentration(120 mg/L)Cu would cause part of PSⅡ reaction center closed.关键词
铜/鸢尾/胁迫/叶绿素荧光参数Key words
Cu/Iris tectorum Maxim./stress/chlorophyll fluorescence parameters分类
农业科技引用本文复制引用
夏红霞,李爽,马澜睿,朱启红..铜胁迫对鸢尾叶片叶绿素荧光参数的影响[J].河南农业科学,2014,(9):79-82,4.基金项目
重庆市教育委员会资助项目（KJ121215，KJ131207）；重庆市大学生创新创业训练计划项目 （）
