| Cd和模拟酸雨复合污染对密叶绢藓生理生化指标的影响 |
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| 引用本文： | 李亚敏,肖红利.Cd和模拟酸雨复合污染对密叶绢藓生理生化指标的影响[J].安徽农业科学,2010,38(32):18261-18263. |
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| 作者姓名： | 李亚敏 肖红利 |
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| 作者单位： | 1. 陕西广播电视大学理工部,陕西西安,710069
2. 西北农林科技大学生命科学学院,陕西杨凌,712100 |
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| 摘 要： | 目的]为密叶绢藓作为环境监测的指示植物提供参考。方法]通过实验室模拟试验,研究了重金属Cd（0~50 mg/L）和模拟酸雨（pH值分别为3.5、4.5和5.6）复合污染对密叶绢藓生理生化指标的影响。结果]随着酸雨强度的增大和Pb处理浓度的增加,密叶绢藓的可溶性蛋白质含量在Cd浓度为20 mg/L,pH值为3.5时达到最大值,比对照高出40.91%;超氧化物歧化酶（SOD）和过氧化物酶（POD）活性则是先升高后降低;而可溶性糖和游离脯氨酸含量则是随着Cd含量的增加而增加,在pH值3.5酸雨胁迫下,密叶绢藓受害程度最高。结论]密叶绢藓对酸雨有较好的耐受能力,酸雨和Cd复合污染比单一污染对密叶绢藓造成的胁迫更严重。
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| 关 键 词： | Cd 模拟酸雨 复合污染 密叶绢藓 生理生化 |
Complex Effects of Cd and Simulated Acid Rain on the Physiological Characteristics of Entodon compressus(Hedw.)C. Muell |
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| LI Ya-min et al.Complex Effects of Cd and Simulated Acid Rain on the Physiological Characteristics of Entodon compressus(Hedw.)C. Muell[J].Journal of Anhui Agricultural Sciences,2010,38(32):18261-18263. |
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| Authors: | LI Ya-min |
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| Institution: | LI Ya-min et al (Science , Technology Department,Shaanxi Radio & TV University,Xi'an,Shaanxi 710069) |
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| Abstract: | Objective] The aim was to provide reference for Entodon compressus(Hedw.)C.Muell.to act as a biomarker in environmental monitoring.Method] Effects of Cd(0-50 mg/L) and simulated Acid Rain(pH=3.5,4.5,5.6) on the physiological characteristics of Entodon compressus(Hedw.)C.Muell.were studied with laboratory simulated experiment.Results] As the intensity of acid rain enhanced and Pb treatment concentration increased,the maximum soluble protein in Entodon compressus(Hedw.)C.Muell.appeared under 20 mg/L of Cd ... |
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| Keywords: | Cd Simulated acid rain Complex effects Entodon compressus(Hedw )C Muell Physiological characteristics |
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