Effects of soil properties on accumulation characteristics of copper,manganese, zinc, and cadmium in Chinese turnip  

作　　者：Boqun Li Di Chen Yongping Yang Xiong Li 

机构地区：[1]Key Laboratory for Plant Diversity and Biogeography of East Asia,Kunming Institute of Botany,Chinese Academy of Sciences,Kunming 650201,China [2]Germplasm Bank of Wild Species,Kunming Institute of Botany,Chinese Academy of Sciences,Kunming 650201,China [3]School of Life Sciences,Yunnan University,Kunming 650091,China

出　　处：《Plant Diversity》2019年第5期340-346,共7页植物多样性（英文版）

基　　金：financially supported by the Western Youth Project B of the “Light of West China” Program of Chinese Academy of Sciences (Y7260411W1);the Yunnan Applied Basic Research Projects (2018FB068)

摘　　要：Clarifying the mechanisms of heavy metal(HM)accumulation and translocation from soil-root-leaf is crucial to coping with soil HM pollution.In this study,we analysed copper(Cu),manganese(Mn),zinc(Zn)and cadmium(Cd)accumulation characteristics in Chinese turnips and the effect of soil physicochemical properties on both HM accumulation and translocation.Our results indicate that Chinese turnips absorb and translocate Mn,Zn,and Cd at much higher levels than they do Cu.When we measured bioconcentration factors in Chinese turnips for different HMs in the same soil,we found Chinese turnip capacities for HM accumulation decrease from Zn>Mn>Cd>Cu.In addition,the translocation factor for these HMs decreases from Mn>Cd>Zn>Cu.Correlation analysis indicates that soil p H and various soil components are either negatively or positively correlated with Mn,Zn,and Cd accumulation;also,soil properties are correlated with Mn translocation from root to leaf.These findings may help evaluate HM accumulation and translocation mechanisms as well as artificially regulate HM uptake levels from soils to turnips.Clarifying the mechanisms of heavy metal(HM) accumulation and translocation from soil-root-leaf is crucial to coping with soil HM pollution. In this study, we analysed copper(Cu), manganese(Mn), zinc(Zn) and cadmium(Cd) accumulation characteristics in Chinese turnips and the effect of soil physicochemical properties on both HM accumulation and translocation. Our results indicate that Chinese turnips absorb and translocate Mn, Zn, and Cd at much higher levels than they do Cu. When we measured bioconcentration factors in Chinese turnips for different HMs in the same soil, we found Chinese turnip capacities for HM accumulation decrease from Zn > Mn > Cd > Cu. In addition, the translocation factor for these HMs decreases from Mn > Cd > Zn > Cu. Correlation analysis indicates that soil p H and various soil components are either negatively or positively correlated with Mn, Zn, and Cd accumulation; also, soil properties are correlated with Mn translocation from root to leaf. These findings may help evaluate HM accumulation and translocation mechanisms as well as artificially regulate HM uptake levels from soils to turnips.

关 键 词：TURNIP Heavy metal BIOCONCENTRATION Phyto REMEDIATION Soil composition 

分 类 号：S15[农业科学—土壤学]