Overexpression of PtABCC1 contributes to mercury tolerance and accumulation in Arabidopsis and poplar

被引：42

作者：

Sun, Liping ^{[1
]}

Ma, Yifeng ^{[1
]}

Wang, Huihong ^{[1
]}

Huang, Weipeng ^{[1
]}

Wang, Xiaozhu ^{[1
]}

Han, Li ^{[1
]}

Sun, Wanmei ^{[1
]}

Han, Erqin ^{[1
]}

Wang, Bangjun ^{[1
]}

机构：

[1] Southwest Univ, Coll Life Sci, Minist Edu, Key Lab Ecoenvironm Gorges Reservoir Reg 3, Chongqing 400715, Peoples R China

来源：

BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS | 2018年 / 497卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Hg; Poplar; PtABCC1; Tolerance; Accumulation; OXIDATIVE STRESS; ABC TRANSPORTERS; CADMIUM; EXPRESSION; BINDING; PROTEIN; RESISTANCE; SUBFAMILY; TOXICITY; PLANTS;

D O I：

10.1016/j.bbrc.2018.02.133

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Mercury (Hg) is a highly biotoxic heavy metal that contaminates the environment. Phytoremediation is a green technology for environmental remediation and is used to clean up Hg contaminated soil in recent years. In this study, we isolated an ATP-binding cassette (ABC) transporter gene PtABCC1 from Populus trichocarpa and overexpressed it in Arabidopsis and poplar. The transgenic plants conferred higher Hg tolerance than wild type (WT) plants, and overexpression of PtABCC1 could lead to 26-72% or 7-160% increase of Hg accumulation in Arabidopsis or poplar plants, respectively. These results demonstrated that PtABCC1 plays a crucial role in enhancing tolerance and accumulation to Hg in plants, which provides a promising way for phytoremediation of Hg contamination. (C) 2018 Elsevier Inc. All rights reserved.

引用

页码：997 / 1002

页数：6

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