墨西哥中部矿区尾矿上生长的植物中的重金属浓度。
Heavy metals concentration in plants growing on mine tailings in Central Mexico.
机构信息
Department of Chemistry, Unidad Profesional Interdisciplinaria de Biotecnología-IPN (UPIBI), Av. Acueducto, Barrio la Laguna Ticoman, CP 07340, DF México City, Mexico.
出版信息
Bioresour Technol. 2010 Jun;101(11):3864-9. doi: 10.1016/j.biortech.2010.01.013. Epub 2010 Jan 29.
Metal concentrations were measured in plants growing on heavily contaminated tailings from a mine active since about 1800 in San Luis Potosí (Mexico). Viguiera dentata (Cav.) Spreng., Parthenium bipinnatifidum (Ort.) Rollins, Flaveria angustifolia (Cav.) Pers., F. trinervia (Spreng.) C. Mohr. and Sporobolusindicus (L.) R. Br. were tolerant to high As, Cu, Pb and Zn concentrations. Of those, S.indicus excluded heavy metals from its shoots, while P. bipinnatifidum and F. angustifolia accumulated them. V. dentata and P. bipinnatifidum were accumulators of As, but not hyperaccumulators. It was found that V. dentata,P. bipinnatifidum, F. angustifolia, F. trinervia and S.indicus, could be used to vegetate soils contaminated with As, Cu, Pb and Zn. Ambrosiaartemisifolia could be used to remediate soils contaminated with Zn, S. amplexicaulis those with Cu and F. angustifolia and F. trinervia those with As, as they have a strong capacity to accumulate those metals.
在受 19 世纪以来一直活跃的墨西哥圣路易斯波托西州矿山尾矿严重污染的地区，生长的植物中测量了金属浓度。Viguiera dentata（Cav.）Spreng.、Parthenium bipinnatifidum（Ort.）Rollins、Flaveria angustifolia（Cav.）Pers.、Flaveria trinervia（Spreng.）C. Mohr.和Sporobolus indicus（L.）R. Br. 对高浓度的 As、Cu、Pb 和 Zn 具有耐受性。其中，S.indicus 将重金属排除在其茎之外，而 P. bipinnatifidum 和 F. angustifolia 则积累了它们。V. dentata 和 P. bipinnatifidum 是 As 的积累者，但不是超积累者。研究发现，V. dentata、P. bipinnatifidum、F. angustifolia、F. trinervia 和 S.indicus 可用于植被受 As、Cu、Pb 和 Zn 污染的土壤。Ambrosia artemisifolia 可用于修复受 Zn 污染的土壤，S. amplexicaulis 可用于修复受 Cu 污染的土壤，F. angustifolia 和 F. trinervia 可用于修复受 As 污染的土壤，因为它们具有很强的积累这些金属的能力。
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