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Phytoremediation using genetically engineered plants to remove metals: a review
Environmental Chemistry Letters ( IF 15.7 ) Pub Date : 2020-10-03 , DOI: 10.1007/s10311-020-01095-6
Ibrahim Ilker Ozyigit , Hasan Can , Ilhan Dogan

Contamination by heavy metals including As, Cd, Co, Cu, Fe, Hg, Mn, Ni and Zn in agricultural fields is a global safety issue. Indeed, excessive accumulations of metals have detrimental effects on life by altering cell components such as lipids, proteins, enzymes and DNA. Phytoremediation appears as a solution to remove metals from contaminated sites, yet metal uptake is usually low in most common plants. Therefore, genetically engineered plants have been designed for higher efficiency of metal accumulation. Here, we review metal phytoremediation by genetically engineered plants with focus on metal uptake and transport, mechanisms involving phytochelatin and metallothionein proteins, toxicity, plant species, methods of gene transfer and gene editing.



中文翻译:

使用基因工程植物去除金属的植物修复:综述

在农业领域,重金属包括砷,镉,钴,铜,铁,汞,锰,镍和锌的污染是一个全球安全问题。实际上,过量的金属积累会通过改变细胞成分(如脂质,蛋白质,酶和DNA)而对生命产生不利影响。植物修复似乎是从受污染部位去除金属的一种解决方案,但是在大多数常见植物中,金属吸收通常很低。因此,已经设计了基因工程植物以提高金属积累的效率。在这里,我们综述了基因工程植物对金属的修复,重点是金属的吸收和运输,涉及植物螯合素和金属硫蛋白的机理,毒性,植物种类,基因转移和基因编辑的方法。

更新日期:2020-10-04
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