Study of the tolerance of Hippochaete ramosissimum to Cu stress

作     者：LIU Dengyi, LI Ying, CHU Ling, WANG Guanglin & WANG Lilong Biodiversity Research Center, Anhui Normal University, Wuhu 241000, China The Provincial Key Laboratory of Conservation and Exploitation of Biological Resources in Anhui, Wuhu 241000, China 

作者机构：Biodiversity Research Center Anhui Normal University Wuhu China The Provincial Key Laboratory of Conservation and Exploitation of Biological Resources in Anhui Wuhu China 

出 版 物：《Science China(Life Sciences)》 (中国科学（生命科学英文版）)

年 卷 期：2005年第48卷第Z1期

页      面：150-155页

核心收录：

学科分类：0710[理学-生物学] 071001[理学-植物学] 07[理学] 

基　　金：the National Key Basic Research Plan of China (973-2004CB418503) National Natural Science Foundation of China (Grant No. 30470270) Natural Science Research Foundation of Anhui Province (Grant No.03043501) 

主　　题：Hippochaete ramosissimum, tolerance, Cu stress. 

摘      要：We investigated the tolerance of Hippochaete ramosissimum and the changes in physiological metabolism following exposure to copper using pot experiments and analyzing plant physiology and biochemistry. The results showed that Cu tolerance in Hippochaete ramosissimum varied significantly between different populations; the tolerance of plants living in Cu polluted areas for extended periods of time exceeded that of plants living in unpolluted *** and POD activities in highly Cu tolerant plants increased noticeably following exposure to Cu. This indicates that maintaining and increasing the two kinds of protective enzyme activities are the primary foundations of plant tolerance. However, no change in CAT activity was demonstrated following Cu exposure. In summary, there existed considerable differences in physiological metabolism between different populations of Hippochaete ramosissimum following exposure to Cu.