水体铜污染对吊兰生长与生理特性的影响  

Effects of Cu Pollution on Growth and Physiological Characteristics of Chlorophytum Comosum

作　　者：张星 闫子木 郑雪雯 王友保[1,2] ZHANG Xing;YAN Zi-mu;ZHENG Xue-wen;WANG You-bao(College o f Life Sciences,Anhui Normal University,Wuhu 241000,China;Provincial Key Laboratory of Biotic Environment and Ecological Safety in Anhui,Wuhu 241000,China)

机构地区：[1]安徽师范大学生命科学学院,安徽芜湖241000 [2]安徽师范大学生物环境与生态安全安徽省高校省级重点实验室,安徽芜湖241000

出　　处：《安徽师范大学学报（自然科学版）》2020年第2期139-142,158,共5页Journal of Anhui Normal University(Natural Science)

基　　金：国家自然科学基金项目(31070401);安徽省高校自然科学基金重大项目(KJ2018ZD033);重要生物资源保护与利用研究安徽省重点实验室基金资助项目。

摘　　要：为了探讨观赏植物在重金属污染水体植物修复中的作用,本文选用观赏植物吊兰,研究在水体中,不同Cu浓度胁迫下,吊兰的生长状况与生理特性。结果显示,随着水体中Cu浓度的升高,吊兰生长受到不同程度的抑制,但吊兰对Cu具有较强的耐性,在Cu浓度达到20mg·L-1时,仍能正常生长。吊兰叶片和根中富集的Cu含量随培养液中Cu浓度的增加而增加,与水体Cu浓度呈正相关。该研究结果可以为将吊兰应用于Cu污染水体的修复提供理论支撑。In order to explore the role of ornamental plants in phytoremediation of heavy metal polluted water,this paper selected Chlorophytum comosum,an ornamental plant to study the growth and physiological characteristics,which under different Cu concentration stress in water.The results showed that with the increase of Cu concentration in water,the growth of C.comosum was inhibited to some extent,but C.comosum had strong tolerance to Cu.When the Cu concentration reached 20mg·L-1,it could still grow normally.The concentration of Cu in leaves and roots of C.comosum increased with the increase of Cu concentration in culture medium,which was positively correlated with the concentration of Cu in water.The results can provide theoretical support for the application of C.comosum to the remediation of Cu polluted water.

关 键 词：吊兰 水污染 铜胁迫 耐性 

分 类 号：X173[环境科学与工程—环境科学] X52