Trace element accumulation and distribution in the organs of Phragmites australis (common reed) and biomonitoring applications
Trace element accumulation and distribution in the organs of Phragmites australis (common reed) and biomonitoring applications
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DOI：
10.1016/j.ecoenv.2011.01.018
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发表时间：
2011-05-01
影响因子：
6.8
通讯作者：
Bonanno, G.
中科院分区：
文献类型：
--
作者：
Bonanno, G.
微量元素的浓度进行了研究，在根，根茎，茎，叶的芦苇站（常见的芦苇），并在相应的样品的水和沉积物从伊梅拉子午线河（西西里，意大利），大规模城市化和集约化农业的影响。所考虑的元素为Ag、Al、As、B、Ba、Be、Co、Fe、Mo、Pd、Pt、Rh、Sb、Se、Sr、Tl和V。地下器官中的含量通常高于地上组织，元素含量的总体趋势为根>根茎>叶>茎。微量元素的流动性一般较高的器官比沉积物中的植物。关于Al、Fe和V，根中的植物毒性水平和低植物/根流动性可能表明根固有地耐受这些金属，并且充当过滤器以防止有毒物质在植物中分布。Pd和Rh的高吸收表明催化转化器的排放是研究区域的主要健康危害之一。芦苇对环境条件有直接的响应，应考虑将其作为生物监测器。(C)2011 Elsevier Inc. All rights reserved.
The concentrations of trace elements were studied in roots, rhizomes, stems, and leaves of Phragmites australis stands (common reeds), and in the corresponding samples of water and sediment from the mouth of the Imera Meridionale River (Sicily, Italy), an area affected by massive urbanization and intensive agriculture. The elements considered were Ag, Al, As, B, Ba, Be, Co, Fe, Mo, Pd, Pt, Rh, Sb, Se, Sr, Tl, and V. Concentrations in belowground organs were usually higher than aboveground tissues, and the general decreasing trend of element content was root > rhizome > leaf > stem. Trace element mobility was generally higher within the organs than in sediment to plant. Regarding Al, Fe, and V. the phytotoxic levels in roots and the low plant/root mobility, may indicate that roots are inherently tolerant to these metals, and act as filters to prevent toxic distribution in the plant. The high uptake of Pd and Rh showed that emissions of catalytic converters are one of the main health hazards of the study area. P. australis showed a direct response to the environmental conditions, and its application as a biomonitor should be considered. (C) 2011 Elsevier Inc. All rights reserved.