Departmental Papers (Dental)
Date of this Version
Current Opinion in Biotechnology
Most phytoremediation studies utilize merA or merB genes to modify plants via the nuclear or chloroplast genome, expressing organomercurial lyase and/or mercuric ion reductase in the cytoplasm, endoplasmic reticulum or within plastids. Several plant species including Arabidopsis, tobacco, poplar, rice, Eastern cottonwood, peanut, salt marsh grass and Chlorella have been transformed with these genes. Transgenic plants grew exceedingly well in soil contaminated with organic (~400 μM PMA) or inorganic mercury (~500 μM HgCl2), accumulating Hg in roots surpassing the concentration in soil (~2000 μg/g). However, none of these plants were tested in the field to demonstrate real potential of this approach. Availability of metal transporters, translocators, chelators and the ability to express membrane proteins could further enhance mercury phytoremediation capabilities.
© <2009>. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Ruiz, O. N., & Daniell, H. (2009). Genetic Engineering to Enhance Mercury Phytoremediation. Current Opinion in Biotechnology, 20 (2), 213-219. http://dx.doi.org/10.1016/j.copbio.2009.02.010
Date Posted: 01 March 2022
This document has been peer reviewed.