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Cd胁迫下绿豆幼苗根部对K·Ca·Mg含量的影响
引用本文:张媛华. Cd胁迫下绿豆幼苗根部对K·Ca·Mg含量的影响[J]. 安徽农业科学, 2012, 40(14): 8150+8342
作者姓名:张媛华
作者单位:渭南师范学院化学与生命科学学院,陕西渭南,714000
基金项目:陕西省自然科学基础研究计划项目,渭南师范学院科研资助项目
摘    要:[目的]研究Cd胁迫下绿豆(Phaseolus raditus L.)幼苗根部矿质元素的代谢。[方法]用1μmol/L Cd2+模拟Cd污染,通过火焰原子吸收分光光度仪(FAAS)对矿质营养元素K、Ca、Mg含量进行测定。[结果]Cd胁迫下,根中的Mg含量降低,K含量先升高后降低,Ca含量却有所升高。[结论]Cd间接影响植物的生长发育。

关 键 词:Cd  绿豆幼苗    含量

Effect of Cd Stress on Concentration of K, Ca and Mg in Root of Phaseolus raditus L.Seedlings
ZHANG Yuan-hua. Effect of Cd Stress on Concentration of K, Ca and Mg in Root of Phaseolus raditus L.Seedlings[J]. Journal of Anhui Agricultural Sciences, 2012, 40(14): 8150+8342
Authors:ZHANG Yuan-hua
Affiliation:ZHANG Yuan-hua(College of Chemistry and Life Science,Weinan Normal University,Weinan,Shaanxi 714000)
Abstract:[Objective] The aim was to study the metabolism of K,Ca and Mg in the root of Phaseolus raditus L.seedlings under Cd stress.[Method] Cd contamination was simulated with 1 μmol/L Cd2+,and the content of K,Ca and Mg were detected by the flame atomic absorption spectrometry(FAAS).[Result] The concentration of Mg in root reduced,and the concentration of K firstly increased and then declined,the concentration of Ca improved under Cd contamination.[Conclusion] Cd produces an indirect impact on the growth of Phaseolus raditus L.seedlings.
Keywords:Cd  Phaseolus raditus L.seedling  Root  Content
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