Soil contamination by heavy metals and metalloids is a serious problem which needs to be addressed. There are several methods for removal of contaminants, but they are costly, while the method of phytoremediation is eco-friendly and cost-effective. Pteridophytes have been found to remediate heavy metal-contaminated soil. Pteridophytes are non-flowering plant that reproduces by spores. Pteris vittata has been reported as the first fern plant to hyperaccumulate arsenic. The Pteris species belongs to the order Pteridales. Other ferns that are known phytoremediators are, for example, Nephrolepis cordifolia and Hypolepis muelleri (identified as phytostabilisers of Cu, Pb, Zn and Ni); similarly Pteris umbrosa and Pteris cretica accumulate arsenic in leaves. So, pteridophytes have a number of species that accumulate contaminants. Many of them have been identified, while various other are being explored. The present review article describes the phytoremediation potential of pteridophytes plants and suggests as a potential asset for phytoremediation programs.

中文翻译：

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蕨类植物在植物修复中的作用。

重金属和准金属对土壤的污染是一个严重的问题，需要解决。有几种去除污染物的方法，但是它们很昂贵，而植物修复的方法既环保又具有成本效益。已经发现蕨类植物可以修复重金属污染的土壤。蕨类植物是通过孢子繁殖的非开花植物。据报道，凤尾蕨是第一株过量富集砷的蕨类植物。翼龙属属于翼龙目。其他已知的植物修复剂蕨类植物有，例如，Nephrolepis cordifolia和Hypolepis muelleri（鉴定为Cu，Pb，Zn和Ni的植物稳定剂）；类似地，伞状蕨和凤尾蕨在叶片中积累砷。因此，蕨类植物有许多积累污染物的物种。他们中的许多人已经确定，而其他各种人也在探索中。本篇综述文章介绍了蕨类植物的植物修复潜力，并建议将其作为植物修复计划的潜在资产。