| 蜈蚣草中芘与砷的赋存特征及其相互作用 |
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| 引用本文： | 张玉秀,马旭,廖晓勇,阎秀兰,马栋,龚雪刚.蜈蚣草中芘与砷的赋存特征及其相互作用[J].环境科学,2015,36(12):4623-4629. |
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| 作者姓名： | 张玉秀 马旭 廖晓勇 阎秀兰 马栋 龚雪刚 |
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| 作者单位： | 中国矿业大学(北京)化学与环境工程学院, 环境生物工程系, 北京 100083;中国矿业大学(北京)化学与环境工程学院, 环境生物工程系, 北京 100083;中国科学院地理科学与资源研究所, 环境损害与污染修复北京市重点实验室, 北京 100101;中国科学院地理科学与资源研究所, 环境损害与污染修复北京市重点实验室, 北京 100101;中国科学院地理科学与资源研究所, 环境损害与污染修复北京市重点实验室, 北京 100101;中国科学院地理科学与资源研究所, 环境损害与污染修复北京市重点实验室, 北京 100101;中国科学院地理科学与资源研究所, 环境损害与污染修复北京市重点实验室, 北京 100101 |
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| 基金项目： | 国家自然科学基金项目(41271339);中央高校基本科研业务费专项(2010YH05) |
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| 摘 要： | 超富集植物蜈蚣草能够累积土壤环境中的砷,为探明蜈蚣草植株中芘的赋存特征及其与砷的相互作用,采用双光子激光共聚焦扫描显微技术检测观察芘在该植物中赋存和分布规律.结果表明,添加芘导致蜈蚣草各部位砷含量显著降低,其中叶部和茎部砷含量下降幅度达35%左右,根部砷含量减少20.5%.芘的添加使得植物各部位三价砷比例下降,五价砷比例升高,蜈蚣草叶部三价砷和五价砷赋存浓度下降幅度最大,下降幅度分别为42.2%和32.49%.添加砷可促进蜈蚣草根部和茎部中芘的积累,每株分别增加了9.8μg和139 ng,但对叶部中芘的积累无显著影响.芘主要分布于蜈蚣草细胞膜与细胞内部的细胞器膜结构及细胞核核膜附近,但细胞质中芘的含量较少,茎部韧皮部与皮层以及叶部栅栏组织和海绵组织中几乎没有检测到芘.
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| 关 键 词： | 芘 砷 蜈蚣草 植物修复 交互影响 |
| 收稿时间： | 2015/4/27 0:00:00 |
| 修稿时间： | 2015/7/24 0:00:00 |
Occurrence Characteristics of Pyrene and Arsenate and Their Interaction in Pteris vittata L. |
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| ZHANG Yu-xiu,MA Xu,LIAO Xiao-yong,YAN Xiu-lan,MA Dong and GONG Xue-gang.Occurrence Characteristics of Pyrene and Arsenate and Their Interaction in Pteris vittata L.[J].Chinese Journal of Environmental Science,2015,36(12):4623-4629. |
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| Authors: | ZHANG Yu-xiu MA Xu LIAO Xiao-yong YAN Xiu-lan MA Dong and GONG Xue-gang |
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| Institution: | Department of Environmental and Biological Engineering, School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China;Department of Environmental and Biological Engineering, School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China;Beijing Key Laboratory of Environmental Damage Assessment and Remediation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;Beijing Key Laboratory of Environmental Damage Assessment and Remediation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;Beijing Key Laboratory of Environmental Damage Assessment and Remediation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;Beijing Key Laboratory of Environmental Damage Assessment and Remediation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;Beijing Key Laboratory of Environmental Damage Assessment and Remediation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China |
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| Abstract: | |
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| Keywords: | pyrene arsenate Pteris vittata L phytoremediation interaction |
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