Study on Accumulation of Cd by Amaranthus mangostanus  

作　　者：Menglu GUO 

机构地区：[1]Heze University,Heze 274015,China

出　　处：《Agricultural Biotechnology》2022年第4期43-45,共3页农业生物技术（英文版）

摘　　要：[Objectives]The effects of three exogenous phytohormones on the uptake and accumulation of Cd in the seedlings of Amaranthus mangostanus L.were investigated.[Methods]Three effective plant hormones,auxin(IAA),gibberellin(GA)and salicylic acid(SA)were selected and formulated into three concentrations,respectively,and were studied through pot experiments.[Results]The application of IAA,GA and SA increased the accumulation of Cd in each part of A.mangostanus.The absorption capacities of Cd in the roots,stems and leaves of A.mangostanus were related to the types and levels of hormones,and the overall trend was GA>SA>IAA.The leaves had significantly higher Cd translocation and bioaccumulation capacities than the stems.Under the treatment of 500 mg/L low concentration of gibberellin,the translocation and bioaccumulation factors reached the highest.[Conclusions]The results indicated that the absorptive,accumulative and transferred capacities of Cd of the amaranth plants after using phytohormones were obviously higher than the control.

关 键 词：PHYTOHORMONES CD PHYTOREMEDIATION 

分 类 号：X173[环境科学与工程—环境科学]