数字农科院2.0

Constitutional tolerance to heavy metals of a fiber crop, ramie (Boehmeria nivea), and its potential usage

文献类型： 外文期刊

作者： Yang, B.;Zhou, M.;Shu, W. S.;Lan, C. Y.;Ye, Z. H.;Yang, B.;Zhou, M.;Shu, W. S.;Lan, C. Y.;Ye, Z. H.;Qiu, R. L.;Qiu, R. L.;Jie, Y. C.;Cui, G. X.;Wong, M. H.;Wong, M. H.

作者机构：

关键词： constitutional tolerance;heavy rnetals;phytoremediation;ramie

期刊名称： ENVIRONMENTAL POLLUTION

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年卷期：

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收录情况： SCI

摘要： It is observed that ramie (Boehmeria nivea), an economic fiber crop, can establish and colonize metal-contaminated sites in China. Metal tolerance and accumulation by ramie originating from 13 metal-contaminated and 4 "clean" sites in China were compared under field and hydroponic conditions. All selected populations and germplasms displayed good growth performance under diverse metal-contaminated habitats; while growth responses, metal accumulation and tolerance were similar among the 8 populations and 2 germplasms when exposed to solutions containing elevated As, Cd, Pb, or Zn in the laboratory. These revealed that ramie possesses a certain degree of constitutional metal tolerance. To our knowledge, this is the first report of constitutional metal tolerance possessed by a fiber crop. Ramie can be considered as a good candidate for both fiber production and phytoremediation of sites contaminated by multi-metals, as it accumulates relative low metal concentrations, but possesses both high biomass and high economic value.

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