中国麻业科学2017，Vol.39Issue(3)：105-110,6.
镉胁迫下苎麻生理生化变化规律及品种间差异比较
Physiological and Biochemical Dynamic Characteristics of Ramie (Boehmeria nivea L.) to Cadmium Stress and Comparison among Various Varieties
摘要
Abstract
In this research,three varieties which differ greatly in cadmium absorption were selected to anlaysis the physical and biochemical dynamic characteristics of ramie to cadmium stress by hydroponics with the 7 mg/L cadmium concentration.It concluded that ramie had active regulatory mechanism to cadmium stress.Soluble protein content in roots increased,enzyme activity declined but active absorbing area changed little with the increasing of the time.Meanwhile,soluble protein content in leaves and chlorophyll content increased,POD and CAT activity in leaves increased at first and then decreased.Among the three,Shaoyang No.3 had potential of absorbing more cadmium with the mean root active absorbing area reaching(63.45 ± 5.21) ％,which was significantly higher than (55.47 ± 4.06) ％ of Zhongzhu No.2 and (55.92 ± 3.71) ％ of S-1-6.Soluble protein content and CAT activity in leaves of Shaoyang No.3 changed little when cadmium stress continued.关键词
苎麻/镉胁迫/生理生化/品种差异Key words
ramie/cadmium stress/physiological&biochemical/variety difference分类
农业科技引用本文复制引用
李玉兰,陈坤梅,喻春明,陈继康,高钢,陈平,侯美,熊和平..镉胁迫下苎麻生理生化变化规律及品种间差异比较[J].中国麻业科学,2017,39(3):105-110,6.基金项目
湖南重金属污染耕地修复及农作物种植结构调整试点 （）
