|本期目录/Table of Contents|

[1]陆雅婕,吴 笛,尹 颖*,等. 重金属和溴代阻燃剂复合污染对小白菜的生物效应[J].南京大学学报(自然科学),2018,54(1):196.[doi:10.13232/j.cnki.jnju.2018.01.021]
 Lu Yajie,Wu Di,Yin Ying*,et al. Combined effect of heavy metals and bromine flame retardants for pakchoi[J].Journal of Nanjing University(Natural Sciences),2018,54(1):196.[doi:10.13232/j.cnki.jnju.2018.01.021]





 Combined effect of heavy metals and bromine flame retardants for pakchoi
 陆雅婕吴 笛尹 颖*郭红岩
 Lu YajieWu DiYin Ying*Guo Hongyan
 State Key Laboratory of Pollution Control and Resources Reuse,School of Environment,Nanjing University,Nanjing,210023,China
 heavy metalsbromine flame retardantscombined effectphytotoxicity
 The combined pollution of heavy metals and organic chemicals in soil is a fact that can not be ignored.It is significant to acquire environmental behavior and combined effect of heavy metals and organic chemicals for adealing with soil remediation problem and evaluating ecological security.A 45-day pot experiment using aged field soil was performed to investigate the effects of cadmium,copper,tetrabromobisphenol A(TBBPA)and decabromodiphenyl ether(BDE209)on the growth of pakchoi.Results showed that Cd or Cu alone caused a significant reduction in pakchoi biomass(by 9.2% and 9.0%,respectively)and leaf chlorophyll content.They also induced leaf reactive oxygen species(ROS)and malondialdehyde(MDA)level.TBBPA or BDE209 alone showed limited effects on pakchoi.When compared with effects by Cd or Cu alone,TBBPA significantly decreased bioconcentration factor(BCF)of heavy metals in leaves(by 25.5% and 15.9%,respectively),increased total biomass by 9.3% and 14.6% in Cd and Cu treatments respectively,alleviating the inhibition effects of Cd or Cu on pakchoi chlorophyll content.However,BDE209 showed no significant effect on BCF values of Cd or Cu and oxidant stress to pakchoi.It could only alleviate the lipid peroxidation induced by Cd or Cu,but could not alleviate the growth and chlorophyll inhibition to pakchoi.



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更新日期/Last Update: 2018-01-31