| 汞胁迫对蜈蚣草生理特性的影响 |
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| 引用本文： | 徐小蓉,张习敏,杨立昌,乙引.汞胁迫对蜈蚣草生理特性的影响[J].安徽农业科学,2011,39(24):14772-14774. |
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| 作者姓名： | 徐小蓉 张习敏 杨立昌 乙引 |
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| 作者单位： | 贵州师范大学生命科学学院,贵州贵阳,550001 |
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| 基金项目： | 贵州省科学技术基金项目(黔科合J字[2009]2079); 贵州省科技创新人才团队建设项目(黔科合人才团队[2009]4007号); 贵州省社发攻关项目(黔科合SY[2011]3094号) |
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| 摘 要： | 目的]探讨蜈蚣草对汞的耐性及耐汞机理,为进一步研究汞砷复合污染的治理奠定理论依据。方法]对汞胁迫条件下,蜈蚣草生长过程中生物量、叶绿素、丙二醛、游离脯氨酸含量及POD活性等进行了研究。结果]汞浓度增加抑制蜈蚣草生长,降低叶绿素含量,大幅度提高丙二醛（MDA）和游离脯氨酸含量,但POD和SOD活性均呈先上升后下降的趋势。结论]蜈蚣草对汞有一定的耐性,但随汞浓度的增加,蜈蚣草生长受到一定程度的影响,直至产生毒害。
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| 关 键 词： | 蜈蚣草 汞胁迫 生理特性 |
Effect of Hg~(2+) Stress on Physiological Characteristics of Pteris vittata L. |
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| XU Xiao-rong et al.Effect of Hg~(2+) Stress on Physiological Characteristics of Pteris vittata L.[J].Journal of Anhui Agricultural Sciences,2011,39(24):14772-14774. |
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| Authors: | XU Xiao-rong |
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| Institution: | XU Xiao-rong et al(School of Life Science,Guizhou Normal University,Guiyang,Guizhou 550001) |
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| Abstract: | Objective] The aim was to explore tolerance of Pteris vittata L to Hg2+ and mechanism,provide theoretical basis for treatment of Hg and As compound pollution.Method] Effects of heavy metal Hg2+ on physiological characteristics of P.vittata L.were examined in a solution-culture experiment,incluing biomass,chlorophyll,MDA,free proline and POD activity.Result] The results showed that P.vittata growth decreased with the increasing Hg2+.The chlorophyll content dropped dramatically and the MDA content and free... |
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| Keywords: | Pteris vittata L Hg2 Stress Physiological characteristics |
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