Variation in copper and zinc tolerance and accumulation in 12 willow clones： implications for phytoextraction

作     者：Wei-dong YANG Yu-yan WANG Feng-liang ZHAO Zhe-li DING Xin-cheng ZHANG Zhi-qiang ZHU Xiao-e YANG Wei-dong YANG;Yu-yan WANG;Feng-liang ZHAO;Zhe-li DING;Xin-cheng ZHANG;Zhi-qiang ZHU;Xiao-e YANG;Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health,College of Environmental and Resource Sciences,Zhejiang University;Environment and Plant Protection Institute,Chinese Academy of Tropical Agricultural Sciences (CATAS),Danzhou Scientific Observation and Experimental Agro-Environment Station,Ministry of Agriculture;College of Agriculture,Hainan University

作者机构：Ministry of Education Key Laboratory of Environmental Remediation and Ecological HealthCollege of Environmental and Resource Sciences Zhejiang University Hangzhou 310058 China Environment and Plant Protection Institute Chinese Academy of Tropical Agricultural Sciences (CATAS) Danzhou Scientific Observation and Experimental Agro-Environment Station Ministry of Agriculture Danzhou 57173 7 China College of Agriculture Hainan University Haikou 570228 China 

出 版 物：《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 (浙江大学学报（英文版）B辑（生物医学与生物技术）)

年 卷 期：2014年第15卷第9期

页      面：788-800页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 09[农学] 0903[农学-农业资源与环境] 

基　　金：Project supported by the National Natural Science Foundation of China (No. 31100513)  the Key International Cooperative Project of CN-USA from the Ministry of Science and Technology of China (No. 2010DFB 33960)  the Key Project of Ningbo Science and Technology Bureau of Zhejiang Province (No. 2012C10003)  the Key Project of the Ministry of Science and Technology of China (No. 2012BAC17B02)  and the Fundamental Research Funds for the Central Universities  China 

主　　题：Salix spp Copper Zinc Accumulation Tolerance Hydroponic screening 

摘      要：Willows （Salix spp.） have shown high potential for the phytoextraction of heavy metals. This study com- pares variations in copper （Cu） and zinc （Zn） tolerance and accumulation potential among 12 willow clones grown in a nutrient solution treated with 50 pmol/L of Cu or Zn, respectively. The results showed differences in the tolerance and accumulation of Cu and Zn with respect to different species/clones. The biomass variation among clones in response to Cu or Zn exposure ranged from the stimulation of growth to inhibition, and all of the clones tested showed higher tolerance to Cu than to Zn. The clones exhibited less variation in Cu accumulation but larger variation in Zn accumulation. Based on translocation factors, it was found that most of the Cu was retained in the roots and that Zn was more mobile than Cu for all clones. It is concluded that most willow clones are good accumulators of Zn and Cu.