生物谷报道：重金属是人们非常关心的环境污染物。 由于人类活动，例如采矿和金属矿石的冶炼，电镀， 能源和燃料生产，肥料和杀虫剂应用，等等，金属污染变成今天最严重的环境问题之一。植物修复技术是新兴的最有希望的解除重金属污染的方法之一。就是利用一类特殊的具有超积累重金属的植物，富集重金属于植物地上部，然后采用集中填埋或者重新冶炼金属，改良环境的一种方式。目前由于对重金属富集的分子机理尚不清楚极大限制了植物修复技术的应用。
Due to their immutable nature, metals are a group of pollutants of much concern. As a result of human activities such as mining and smelting of metalliferous ores, electroplating, gas exhaust, energy and fuel production, fertilizer and pesticide application, etc., metal pollution has become one of the most serious environmental problems today. Phytoremediation, an emerging cost-effective, non-intrusive, and aesthetically pleasing technology, that uses the remarkable ability of plants to concentrate elements and compounds from the environment and to metabolize various molecules in their tissues, appears very promising for the removal of pollutants from the environment. Within this field of phytoremediation, the utilization of plants to transport and concentrate metals from the soil into the harvestable parts of roots and aboveground
shoots, i.e., phytoextraction, may be, at present, approaching commercialization. Improvement of the capacity of plants to tolerate and accumulate metals by genetic engineering should open up new possibilities for phytoremediation. The lack of understanding pertaining to metal uptake and translocation mechanisms, enhancement amendments, and external effects of phytoremediation is hindering its full scale application. Due to its great potential as a viable alternative to traditional contaminated land remediation methods, phytoremediation is currently an exciting area of active research.
