Sarangi, B K and Kalve, Shweta and Pandey, R A and Chakrabarti, T (2009) Transgenic plants for phytoremediation of Arsenic and Chromium to enhance tolerance and hyperaccumulation. Transgenic Plant Journal, 3 (1). pp. 57-86. ISSN 1749-0413

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Phytoremediation of metals and other environmental pollutants is gaining importance as a cost-effective method for pollution mitigation and envisages sustainable development. This paper envisages prospects of phytoremediation for mitigation of heavy metal pollutants from the environment, with particular reference to arsenic (As) and chromium (Cr). Genetically engineered tailor-made plants have much potential for selective uptake, accumulation and sequestration of heavy metals. Recent developments in this area and state-of-the-art technology foresee genetically engineered plants with an ability to prevent accumulation of As in aerial parts of experimental plant systems, which could be extrapolated to edible plants such as rice, wheat and others. Similarly, hypereaccumulation in plant biomass is another important approach for removal of these toxic metals from the land and water ecosystems and mitigation of As and Cr pollution. The mechanisms of As hyperaccumulation by the hyperaccumulator plants has opened up scope for genetic engineering other prospective plant species to enhance hyperaccumulation of toxic metals in their aerial biomass. This review enumerates the mechanisms of hyperaccumulation in the plant systems, the potential genes that could be engineered to develop tailor made genetically engineered plants aimed for phytoremediation of As and Cr and other metals in general.

Item Type: Article
Subjects: Environmental Biotechnology
Environmental Management
Water Treatment
Depositing User: Dr Bijaya Sarangi
Date Deposited: 20 Mar 2014 07:51
Last Modified: 20 Mar 2014 07:51

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