Joint toxic effects of heavy metals and atrazine on invasive plant species Solidago Canadensis L.

作     者：HAN Zhaoxiang HE Guandong WANG Jiahong LU Chunxia 

作者机构：School of Chemical Engineering Huaihai Institute of Technology Lianyungang 222005 China School of the Environment Nanjing University Nanjing 210093 China Jiaonan Agricultural Bureau Qingdao 266400 China 

出 版 物：《Chinese Journal Of Geochemistry》 (中国地球化学学报)

年 卷 期：2011年第30卷第4期

页      面：523-530页

核心收录：

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 08[工学] 09[农学] 0708[理学-地球物理学] 0815[工学-水利工程] 0904[农学-植物保护] 

基　　金：supported by the Foundation of Chongqing Key Laboratory of Micro/Nano Materials Engineering and Technology (No.KFJJ1106) Foundation of Jiangsu Marine Resources Development Research Institute (No.JSIMR10E04) Foundation of Jiangsu university student renovation project of institution of higher education (No.1116) the National Nature Science Foundation of China (Project No.20977040) 

主　　题：加拿大一枝黄花 联合毒性作用 莠去津 入侵植物 ATR技术 重金属 地上部生物量 可溶性糖含量 

摘      要：In this study, the joint effects of Cd(Ⅱ), Pb(Ⅱ) and atrazine (ATR) on Solidago Canadensis L. were investigated. The results showed that soil containing Cd, Pb and ATR could inhibit root elongation of Solidago Canadensis L., and that there was a positive linear relationship between the inhibitory rate of root elongation and the concentrations of Pb(Ⅱ). The mixture of Cd(Ⅱ) and Pb(Ⅱ)-ATR in soil showed a significant adverse effect on root and shoot biomass of Solidago Canadensis L. Acetylsalicylic acid (ASA) contents increased slightly at the lower concentrations of Cd(Ⅱ)-ATR, then decreased when Cd(Ⅱ)-ATR concentrations were higher than those of 1.0 TUmix(Cd+ATR). The toxic effect of Pb(Ⅱ)-ATR on the ASA contents of Solidago Canadensis L. was greater than that of Cd(Ⅱ)-ATR. Soluble sugar contents firstly decreased and then increased with increasing concentrations of Cd(Ⅱ)-ATR and displayed fluctuation with increasing concentrations of Pb(Ⅱ)-ATR. Total protein contents in-creased with increasing concentrations of Cd(Ⅱ) and Pb(Ⅱ)-ATR , relative to the control sample. The NP-SH con-tents showed a significant increase up to 12.2 mg/gfw of Cd(Ⅱ)-ATR, followed by a significant decline to 4.5 mg/gfw after 14 days of exposure. The effect of Pb(Ⅱ)-ATR was similar to that of Cd(Ⅱ)-ATR but the amount of NP-SH was not higher than that of Cd(Ⅱ)-ATR.