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。
[ 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 μmol/L Cd^2＋ , 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. seed- lings.
出处
《安徽农业科学》
CAS
2012年第14期8150-8150,8342,共2页
Journal of Anhui Agricultural Sciences
基金
陕西省自然科学基础研究计划项目(2011JQ4014)
渭南师范学院科研资助项目(11YKZ005)
关键词
CD
绿豆幼苗
根
含量
Cd
Phaseolus raditus L. seedling
Root
Content
