PoplarV1, Main, Corpus, bibRecord, 003601

Genetic engineering to enhance mercury phytoremediation.

Identifieur interne : 003601 ( Main/Corpus ); précédent : 003600; suivant : 003602

Genetic engineering to enhance mercury phytoremediation.

Auteurs : Oscar N. Ruiz ; Henry Daniell

Source :

Current opinion in biotechnology [ 1879-0429 ] ; 2009.

RBID : pubmed:19328673

English descriptors

KwdEn :
- Biodegradation, Environmental (MeSH), Genetic Engineering (methods), Mercury (metabolism), Plants, Genetically Modified (genetics), Plants, Genetically Modified (metabolism).
MESH :
- chemical , metabolism : Mercury.
- genetics : Plants, Genetically Modified.
- metabolism : Plants, Genetically Modified.
- methods : Genetic Engineering.
- Biodegradation, Environmental.

Abstract

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 (approximately 400 microM PMA) or inorganic mercury (approximately 500 microM HgCl(2)), accumulating Hg in roots surpassing the concentration in soil (approximately 2000 microg/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.

DOI: 10.1016/j.copbio.2009.02.010
PubMed: 19328673
PubMed Central: PMC2692567

Links to Exploration step

pubmed:19328673

Le document en format XML

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<author><name sortKey="Ruiz, Oscar N" sort="Ruiz, Oscar N" uniqKey="Ruiz O" first="Oscar N" last="Ruiz">Oscar N. Ruiz</name>
<affiliation><nlm:affiliation>Department of Natural Sciences, Inter American University of Puerto Rico, Bayamon, PR 00957-6257, USA.</nlm:affiliation>
</affiliation>
</author>
<author><name sortKey="Daniell, Henry" sort="Daniell, Henry" uniqKey="Daniell H" first="Henry" last="Daniell">Henry Daniell</name>
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<author><name sortKey="Ruiz, Oscar N" sort="Ruiz, Oscar N" uniqKey="Ruiz O" first="Oscar N" last="Ruiz">Oscar N. Ruiz</name>
<affiliation><nlm:affiliation>Department of Natural Sciences, Inter American University of Puerto Rico, Bayamon, PR 00957-6257, USA.</nlm:affiliation>
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<author><name sortKey="Daniell, Henry" sort="Daniell, Henry" uniqKey="Daniell H" first="Henry" last="Daniell">Henry Daniell</name>
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<series><title level="j">Current opinion in biotechnology</title>
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<term>Genetic Engineering (methods)</term>
<term>Mercury (metabolism)</term>
<term>Plants, Genetically Modified (genetics)</term>
<term>Plants, Genetically Modified (metabolism)</term>
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<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Mercury</term>
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<front><div type="abstract" xml:lang="en">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 (approximately 400 microM PMA) or inorganic mercury (approximately 500 microM HgCl(2)), accumulating Hg in roots surpassing the concentration in soil (approximately 2000 microg/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.</div>
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Genetic engineering to enhance mercury phytoremediation.

Genetic engineering to enhance mercury phytoremediation.

Source :

English descriptors

Abstract

Links to Exploration step

Le document en format XML

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