| 铜和镉对金鱼藻的毒性影响研究 |
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| 引用本文： | 宋志慧,赵世刚.铜和镉对金鱼藻的毒性影响研究[J].安徽农业科学,2010,38(7):3688-3689,3693. |
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| 作者姓名： | 宋志慧 赵世刚 |
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| 作者单位： | 青岛科技大学环境与安全工程学院,山东青岛,266042 |
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| 基金项目： | 山东省社会科学规划项目(03CJZ03);;山东省高等学校实验技术研究项目(2005-188) |
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| 摘 要： | 目的]研究铜和镉及其复合污染对金鱼藻的毒性影响。方法]选择生长良好的金鱼藻为试材,以1/4Hoagland溶液为培养液,在预试验确定铜和镉试验浓度的基础上展开为期7 d的正式试验,研究不同浓度铜和镉以及二者共同胁迫对金鱼藻过氧化物酶（POD）活性和叶绿素含量的影响。结果]在铜和镉单独胁迫下,低浓度（〈0.2 mg/L）铜和镉对金鱼藻POD活性和叶绿素含量均有促进作用,高浓度（〉0.2 mg/L）铜和镉对金鱼藻POD活性和叶绿素含量均产生抑制作用。铜对金鱼藻POD和叶绿素的毒性小于镉。铜和镉对金鱼藻叶绿素含量的IC50分别是1.54和1.43 mg/L,铜与镉联合作用时对金鱼藻有拮抗作用。结论]该研究为重金属复合污染对水生植物毒害机理的研究提供参考。
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| 关 键 词： | 金鱼藻 铜 镉 IC50 联合作用 |
Study on Toxic Effects of Cu and Cd on Ceratophyllum demersum L. |
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| SONG Zhi-hui et al.Study on Toxic Effects of Cu and Cd on Ceratophyllum demersum L.[J].Journal of Anhui Agricultural Sciences,2010,38(7):3688-3689,3693. |
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| Authors: | SONG Zhi-hui |
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| Institution: | College of Environment and Safety Engineering;Qingdao Technological University;Qingdao;Shandong 266042 |
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| Abstract: | Objective] The aim was to study the toxic effects of Cu and Cd and their combined pollution on Ceratophyllum demersum.L.Method] Selecting the well grown C.demersum L.as the tested material,with the 1/4Hoagland liquid as the culture medium,on base of determining Cu and Cd test concn.during the preliminary test.The formal test was carried out for 7 d to research the effects of Cu and Cd with different concn.and both combined stress on the POD activity and chlorophyll content in C.demersumL..Result] Under t... |
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| Keywords: | Ceratophyllum demersum L Cu Cd IC50 Combined effect |
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