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蜈蚣草对Pb、Zn复合污染的响应

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朱启红, 夏红霞. 蜈蚣草对Pb、Zn复合污染的响应[J]. 环境化学, 2012, 31(7): 1029-1035.
引用本文: 朱启红, 夏红霞. 蜈蚣草对Pb、Zn复合污染的响应[J]. 环境化学, 2012, 31(7): 1029-1035.
shu
ZHU Qihong, XIA Hongxia. Study on response of Pteris vittata to Pb and Zn combined pollution[J]. Environmental Chemistry, 2012, 31(7): 1029-1035.
Citation: ZHU Qihong, XIA Hongxia. Study on response of Pteris vittata to Pb and Zn combined pollution[J]. Environmental Chemistry, 2012, 31(7): 1029-1035.
shu

蜈蚣草对Pb、Zn复合污染的响应

  • 1.

    重庆文理学院水环境修复重点实验室, 永川, 402168

  • 基金项目:

    重庆市自然科学基金资助项目(cstc2011jjA1236)资助.

Study on response of Pteris vittata to Pb and Zn combined pollution

  • 1.

    Key Laboratory of Water Environment Restoration, Chongqing University of Arts and Sciences, Yongchuan, 402168, China

  • Fund Project:

  • 摘要: 为探明蜈蚣草修复重金属复合污染土壤的能力,本实验利用水培实验研究Pb、Zn交互作用下蜈蚣草对Pb、Zn积累变化以及蜈蚣草对Pb、Zn的解毒机理.实验结果显示,在Pb、Zn复合污染情况下,重金属Zn在0—10 mg·L-1下可促进蜈蚣草根、茎对Pb的富集能力,降低蜈蚣草对Pb的转运能力;而Pb则促进蜈蚣草对Zn的转运系数,提高蜈蚣草茎、叶对Zn的富集能力,并呈现出蜈蚣草对Pb的富集能力大于对Zn的富集能力.实验结果进一步显示,随着重金属复合暴露浓度增加,蜈蚣草叶绿素含量先上升后下降,丙二醛含量先下降后上升,淀粉、蔗糖、O2-含量则逐渐上升.这说明淀粉、蔗糖、O2-·等具有一定的解毒作用,能增强植物对重金属的抗性.实验结果还显示,蜈蚣草对Pb、Zn具有较强的耐性和富集能力,可利用蜈蚣草修复Pb污染土壤以及低Zn浓度的Pb-Zn复合污染土壤.
    Abstract: Combined heavy metal pollution is one of main soil pollutions. In order to investigate the ability of Pteris vittata in restoring soils with combined heavy metal pollution, water cultured experiment was utilized to study the accumulation of Pb and Zn in Pteris vittata and the detoxification mechanism of Pteris vittata to heavy metals under the combined Pb and Zn exposure. The experimental results show that under Pb and Zn combined exposure, Zn improved the enrichment ability of Pteris vittata roots and stems for Pb, and reduced its translocation ability for Pb as well. Pb also improved the translocation ability of the plant for Zn and its enrichment ability. The enrichmant ability of Pteris vittata for Pb was stronger than for Zn. With increasing heavy metal concentrations, chlorophyll content incrensed first and then decreased. Malondialdehyde (MDA) content decreaed first and then increasd. Starch, sucrose and superoxide radical (O2-�) contents all increased gradually. These results show that starch, sucrose and superoxide radical (O2-�) had certain detoxification function, and strengthened resistance of the plants to heavy metals. These results also show that Pteris vittata has tolerance and enrichment ability to Pb and Zn, and Pteris vittata can be used to restore Pb polluted soil and Pb-Zn combined polluted soil under low Zn concentrations.
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  • [1] 李小林,颜森,张小平,等. Pb、Zn矿区重金属污染对微生物数量及放线菌群落结构的影响[J]. 农业环境科学学报,2011,30(3):468-475
    [2] 伍钧,唐亚,李铮铮,等.鱼腥草耐Pb、Zn毒性和修复能力的研究[J].应用基础与工程科学学报,2011,19(2):179-184
    [3] 赖发英,卢年春,牛德奎,等.重金属污染土壤生态工程修复的试验研究[J].农业工程学报,2007,23(3):80-84
    [4] 许中坚,吴灿辉,邱喜阳,等.Pb-Zn-镉复合污染物在土壤-芥菜/油菜系统中的迁移及交互作用[J].水土保持学报,2007,21(6):1-6
    [5] 贺根和,刘强,江丹,等.铝与镉的交互作用对水稻种子萌发及幼苗生长的影响[J].江西农业大学学报,2010,32(3):431-435
    [6] 熊庆娥.植物生理学实验教程[M].成都:四川科学技术出版社,2003
    [7] Dionisio-Sese M L,Tobita S. Antioxidant responses of rice seedlings to salinity stress[J].Plant Science,1998,135:1-9
    [8] 张志良.植物生理学实验指导[M].北京:高等教育出版社,2000
    [9] 哈森其木格,贺锋嘎.间苯二酚分光光度法测定芥菜多糖中的果糖含量[J].光谱学与光谱分析, 2002,6(3):446-448
    [10] Choudhury S, Panda S K. Induction of oxidative stress and ultrastructural changes in moss Taxithelium nepalense (Schwaegr.) Broth.under lead and arsenic phytotoxicity[J]. Current Science, 2004,87:342-348
    [11] 韦进宝.环境监测手册[M].北京:化学工业出版社,2006
    [12] 吴桂容.重金属Cd对桐花树幼苗生理生态效应及土壤酶的影响研究.厦门:厦门大学硕士学位论文,2007
    [13] 李铮铮,伍钧,唐亚,等.Pb、Zn及其交互作用对鱼腥草(Houttuynia cordata)叶绿素含量及抗氧化酶系统的影响[J].生态学报,2007,27(12):5541-5546
    [14] 张永霞,石贵玉,李霞,等.铬胁迫对罗汉果幼苗生理生化指标的影响[J].中国农学通报,2011,(2):717-720
    [15] Lusk C H. Leaf area accumulation helps juvenile ever green trees tolerate shade in a temperate rainforest[J]. Oecologia, 2002, 132:188-196
    [16] 张银秋,台培东,李培军,等.镉胁迫对万寿菊生长及生理生态特征的影响[J].环境工程学报,2011,5(1):195-199
    [17] 袁敏,铁柏清,唐美珍.重金属单一污染对龙须草叶绿素含量和抗氧化酶系统的影响[J].土壤通报.2005,36(6):929-932
    [18] 刘秀梅,聂俊华,王庆仁.16种植物对Pb的吸收与耐性研究[J].植物生态学报.2002,26(5):533-537
    [19] 林琳,安婧,周启星.土壤四环素污染对小白菜幼苗生长发育的生态毒性[J].环境科学,2011,32(8):2430-2435
    [20]
    [21] 汪洪,周卫,林葆.钙对镉胁迫下玉米生长及生理特性的影响[J].植物营养与肥料学报,2001,7(1):78-87
    [22] 刘周莉,何兴元,陈玮.镉胁迫对金银花生理生态特征的影响[J].应用生态学报,2009,20(1):40-44
    [23] 丁海东,万延慧,齐乃敏,等.镉和Zn对番茄幼苗抗氧化酶活性的影响[J].仲恺农业技术学院学报,2004,17(2):37-41
    [24] Stoynova-Bakalova E,Toncheva-Panova T. Subcellular adaptation to salinity and irradiance in Dunaliella salina[J]. Biol Plant, 2003, 47:233-236
    [25]
    [26]
    [27]
    [28] Noctor G, Eover C H. Ascorbate and glutath ione:Keep ineactive oxygen under control[J]. Annu Rev Plant Physiol Plant Mol Biol, 1998,49(1):249-279
    [29] Wang X I. Plant phospholipases[J]. Annu Rev Plant Physiol Plant Mol Biol, 2001,52(1):211-231
    [30] 覃朋,刘飞虎,梁雪妮.超氧化物歧化酶与植物抗逆性[J].黑龙江农业科学,2002,(1):31-34
    [31] 孙成芬,马丽,盛连喜,等.土壤萘污染对玉米苗期生长和生理的影响[J].农业环境科学学报,2009,28(3):443-448
    [32] 王正秋,江行玉,王长海. 铅、镉和锌污染对芦苇幼苗氧化胁迫和抗氧化能力的影响[J].过程工程学报.2002,2(6):558-563
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  • 收稿日期:  2011-09-15
朱启红, 夏红霞. 蜈蚣草对Pb、Zn复合污染的响应[J]. 环境化学, 2012, 31(7): 1029-1035.
引用本文: 朱启红, 夏红霞. 蜈蚣草对Pb、Zn复合污染的响应[J]. 环境化学, 2012, 31(7): 1029-1035.
shu
ZHU Qihong, XIA Hongxia. Study on response of Pteris vittata to Pb and Zn combined pollution[J]. Environmental Chemistry, 2012, 31(7): 1029-1035.
Citation: ZHU Qihong, XIA Hongxia. Study on response of Pteris vittata to Pb and Zn combined pollution[J]. Environmental Chemistry, 2012, 31(7): 1029-1035.
shu

蜈蚣草对Pb、Zn复合污染的响应

  • 1. 重庆文理学院水环境修复重点实验室, 永川, 402168
  • 收稿日期:  2011-09-15
基金项目:

重庆市自然科学基金资助项目(cstc2011jjA1236)资助.

摘要: 为探明蜈蚣草修复重金属复合污染土壤的能力,本实验利用水培实验研究Pb、Zn交互作用下蜈蚣草对Pb、Zn积累变化以及蜈蚣草对Pb、Zn的解毒机理.实验结果显示,在Pb、Zn复合污染情况下,重金属Zn在0—10 mg·L-1下可促进蜈蚣草根、茎对Pb的富集能力,降低蜈蚣草对Pb的转运能力;而Pb则促进蜈蚣草对Zn的转运系数,提高蜈蚣草茎、叶对Zn的富集能力,并呈现出蜈蚣草对Pb的富集能力大于对Zn的富集能力.实验结果进一步显示,随着重金属复合暴露浓度增加,蜈蚣草叶绿素含量先上升后下降,丙二醛含量先下降后上升,淀粉、蔗糖、O2-含量则逐渐上升.这说明淀粉、蔗糖、O2-·等具有一定的解毒作用,能增强植物对重金属的抗性.实验结果还显示,蜈蚣草对Pb、Zn具有较强的耐性和富集能力,可利用蜈蚣草修复Pb污染土壤以及低Zn浓度的Pb-Zn复合污染土壤.

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