Selenium(IV) alleviates chromium(VI)-induced toxicity in the green alga Chlamydomonas reinhardtii
文献类型：期刊论文
| 作者 | Zhang, Baolong; Duan, Guangqian; Fang, Yingying; Deng, Xuan; Yin, Yongguang; Huang, Kaiyao |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2021-03-01 |
| 卷号 | 272页码:- |
| 关键词 | Dichromate Selenite Selenoproteins Reactive oxygen species Bioremediation |
| ISSN号 | 0269-7491 |
| 英文摘要 | The wide range of industrial applications of chromium (Cr) has led to an increasing risk of water contamination by Cr(VI). However, efficient methods to remove or decrease the toxicity of Cr(VI) in situ are lacking. The main aim of this study was to investigate the mechanisms by which selenite alleviates chromium(VI)-induced toxicity in Chlamydomonas reinhardtii. Our results showed that K2Cr2O7 had toxic effects on both the structure and physiology of C. reinhardtii in a dose-dependent manner. Adding selenite significantly alleviated chromium accumulation and toxicity in cells. RNA-seq data showed that the expression level of selenoproteins such as SELENOH was significantly increased. Both SELENOH-amiRNA knockdown mutants and selenoh insertional mutant produced more reactive oxygen species (ROS) and grew slower than the wild type, suggesting that SELENOH can reduce chromium toxicity by decreasing the levels of ROS produced by Cr(VI). We also demonstrated that selenite can reduce the absorption of Cr(VI) by cells but does not affect the process of Cr(VI) adsorption and efflux. This information on the molecular mechanism by which selenite alleviates Cr(VI) toxicity can be used to increase the bioremediation capacity of algae and reduce the human health risks associated with Cr(VI) toxicity. (C) 2021 Elsevier Ltd. All rights reserved. |
| WOS研究方向 | Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45830]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Environm, Hangzhou Inst Adv Study, Hangzhou 310000, Peoples R China 2.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, 7 Donghu South Rd, Wuhan 430072, Hubei, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Baolong,Duan, Guangqian,Fang, Yingying,et al. Selenium(IV) alleviates chromium(VI)-induced toxicity in the green alga Chlamydomonas reinhardtii[J]. ENVIRONMENTAL POLLUTION,2021,272:-. |
| APA | Zhang, Baolong,Duan, Guangqian,Fang, Yingying,Deng, Xuan,Yin, Yongguang,&Huang, Kaiyao.(2021).Selenium(IV) alleviates chromium(VI)-induced toxicity in the green alga Chlamydomonas reinhardtii.ENVIRONMENTAL POLLUTION,272,-. |
| MLA | Zhang, Baolong,et al."Selenium(IV) alleviates chromium(VI)-induced toxicity in the green alga Chlamydomonas reinhardtii".ENVIRONMENTAL POLLUTION 272(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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