Mechanisms of arsenic tolerance and detoxification in plants and their application in transgenic technology: a critical appraisal

International Journal of Phytoremediation
Sudhakar SrivastavaS F D'Souza

Abstract

Arsenic (As) contamination of the environment has emerged as a serious problem. Consequently, there is an urge to understand plants' responses to As. The analysis of various hypertolerant and hyperaccumulator plants and comparison of their responses with non-tolerant and nonaccumulators have provided valuable information about the mechanisms of As tolerance and detoxification. Therefore, we understand why most of the pteridophytes are able to hyperacumulate As, why it is difficult to find hyperaccumulators among angiosperms and why rice is able to translocate As to its grains more efficiently than any other cereal crop. This information can be employed to generate As hyperaccumulators in angiosperms and to develop safe cultivars of rice for human consumption through biotechnological approaches. Although measurable success, in terms of application in the field, has so far not been achieved, transgenic research has yielded promising results, which shed light on the approaches to be taken up in future endeavor. In this review, we discuss the mechanisms of As tolerance and detoxification in plants and transgenic research conducted.

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Citations

Nov 20, 2012·Journal of Experimental Botany·Sudhakar SrivastavaS F D'Souza
Feb 1, 2015·Ecotoxicology and Environmental Safety·Ejazul IslamSamra Irem
Feb 5, 2015·Physiology and Molecular Biology of Plants : an International Journal of Functional Plant Biology·Fauzia SiddiquiSudhakar Srivastava
Jul 6, 2016·Frontiers in Plant Science·Varsha ShriramShabir H Wani
Jul 31, 2019·Biological Trace Element Research·Mary Joy Halog LibatiqueHan-Yang Yeh
Mar 23, 2017·International Journal of Phytoremediation·Sajad HussainNabeel Khan Niazi
Feb 24, 2017·Environmental Science and Pollution Research International·Ali Noman, Muhammad Aqeel
Feb 27, 2017·Biotechnology Letters·Ali NomanMadiha Zainab

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Methods Mentioned

BETA
transgenic
transgenics

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