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首页> 外文期刊>Biotechnology Advances: An International Review Journal >Prospects of genetic engineering of plants for phytoremediation of toxic metals.
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Prospects of genetic engineering of plants for phytoremediation of toxic metals.

机译：植物基因工程对有毒金属进行植物修复的前景。

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Bioremediation is gaining a lot of importance in recent times as an alternate technology for removal of elemental pollutants in soil and water, which require effective methods of decontamination. Phytoremediation-the use of green plants to remove, contain or render harmless environmental pollutants-may offer an effective, environmentally nondestructive and cheap remediation method. The use of genetic engineering to modify plants for metal uptake, transport and sequestration may open up new avenues for enhancing efficiency of phytoremediation. Metal chelator, metal transporter, metallothionein (MT), and phytochelatin (PC) genes have been transferred to plants for improved metal uptake and sequestration. Transgenic plants, which detoxify/accumulate cadmium, lead, mercury, arsenic and selenium have been developed. A better understanding of the mechanisms of rhizosphere interaction, uptake, transport and sequestration of metals in hyperaccumulator plants will lead to designing novel transgenic plants with improved remediation traits. As more genes related to metal metabolism are discovered, facilitated by the genome sequencing projects, new vistas will be opened up for development of efficient transgenic plants for phytoremediation.
机译：作为用于替代土壤和水中元素污染物的替代技术，生物修复在近代变得越来越重要，这需要有效的去污方法。植物修复-使用绿色植物去除，含有或释放无害的环境污染物-可提供一种有效，对环境无害且廉价的修复方法。利用基因工程改造植物以吸收，吸收和吸收金属可能会为提高植物修复效率开辟新途径。金属螯合剂，金属转运蛋白，金属硫蛋白（MT）和植物螯合素（PC）基因已转移到植物中，以改善金属的吸收和螯合。已经开发出使镉，铅，汞，砷和硒解毒/积累的转基因植物。对高蓄积植物中根际相互作用，金属吸收，转运和螯合机理的更好理解将导致设计具有改良修复特性的新型转基因植物。随着更多的与金属代谢相关的基因的发现，在基因组测序项目的推动下，新的前景将被开放，以开发用于植物修复的高效转基因植物。

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