Mechanisms of Selenium Mitigating Stress and Accumulation of Heavy Metals in Plants
Selenium (Se) plays an important role in improving plant stress resistance, mitigating heavy metal stress and reducing heavy metal uptake. This paper reviewed mechanisms involved with Se for mitigation of heavy metal stress and accumulation. Se could alleviate heavy metals stress because of the comb...
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Agro-Environmental Protection Institute, Ministry of Agriculture
2014-12-01
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doaj-9523c5e8552e44219923219d1230bf912020-11-24T22:28:13ZzhoAgro-Environmental Protection Institute, Ministry of AgricultureJournal of Agricultural Resources and Environment2095-68192095-68192014-12-0131654555010.13254/j.jare.2014.0251Mechanisms of Selenium Mitigating Stress and Accumulation of Heavy Metals in PlantsYUAN Si-li0YU Yao1WAN Ya-nan2WANG Qi3QIAO Yu-hui4LI Hua-fen5College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, ChinaCollege of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, ChinaCollege of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, ChinaCollege of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, ChinaCollege of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, ChinaCollege of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, ChinaSelenium (Se) plays an important role in improving plant stress resistance, mitigating heavy metal stress and reducing heavy metal uptake. This paper reviewed mechanisms involved with Se for mitigation of heavy metal stress and accumulation. Se could alleviate heavy metals stress because of the combined physiological and biochemical effects of the relevant products, including GSH-Px which could change toxic peroxides to non-toxic substances and remove free radicals induced by heavy metals. Se could activate phytochelatins synthase and increase the amount of precursors to phytochelatin (PC), and make plant produce more PC, and form more heavy metal-PC complexes. The formation of Se-heavy metal complexes reduced the biotoxicity of heavy metals. Se could produce antagonistic effect with a variety of heavy metals, and reduce the uptake of heavy metals.http://www.aed.org.cn/nyzyyhjxb/html/2014/6/20140610.htmSeleniumheavy metalstressaccumulation |
collection |
DOAJ |
language |
zho |
format |
Article |
sources |
DOAJ |
author |
YUAN Si-li YU Yao WAN Ya-nan WANG Qi QIAO Yu-hui LI Hua-fen |
spellingShingle |
YUAN Si-li YU Yao WAN Ya-nan WANG Qi QIAO Yu-hui LI Hua-fen Mechanisms of Selenium Mitigating Stress and Accumulation of Heavy Metals in Plants Journal of Agricultural Resources and Environment Selenium heavy metal stress accumulation |
author_facet |
YUAN Si-li YU Yao WAN Ya-nan WANG Qi QIAO Yu-hui LI Hua-fen |
author_sort |
YUAN Si-li |
title |
Mechanisms of Selenium Mitigating Stress and Accumulation of Heavy Metals in Plants |
title_short |
Mechanisms of Selenium Mitigating Stress and Accumulation of Heavy Metals in Plants |
title_full |
Mechanisms of Selenium Mitigating Stress and Accumulation of Heavy Metals in Plants |
title_fullStr |
Mechanisms of Selenium Mitigating Stress and Accumulation of Heavy Metals in Plants |
title_full_unstemmed |
Mechanisms of Selenium Mitigating Stress and Accumulation of Heavy Metals in Plants |
title_sort |
mechanisms of selenium mitigating stress and accumulation of heavy metals in plants |
publisher |
Agro-Environmental Protection Institute, Ministry of Agriculture |
series |
Journal of Agricultural Resources and Environment |
issn |
2095-6819 2095-6819 |
publishDate |
2014-12-01 |
description |
Selenium (Se) plays an important role in improving plant stress resistance, mitigating heavy metal stress and reducing heavy metal uptake. This paper reviewed mechanisms involved with Se for mitigation of heavy metal stress and accumulation. Se could alleviate heavy metals stress because of the combined physiological and biochemical effects of the relevant products, including GSH-Px which could change toxic peroxides to non-toxic substances and remove free radicals induced by heavy metals. Se could activate phytochelatins synthase and increase the amount of precursors to phytochelatin (PC), and make plant produce more PC, and form more heavy metal-PC complexes. The formation of Se-heavy metal complexes reduced the biotoxicity of heavy metals. Se could produce antagonistic effect with a variety of heavy metals, and reduce the uptake of heavy metals. |
topic |
Selenium heavy metal stress accumulation |
url |
http://www.aed.org.cn/nyzyyhjxb/html/2014/6/20140610.htm |
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