ArticleEnvironmental science & technology2007
Phytoremediation of mercury and organomercurials in chloroplast transgenic plants: enhanced root uptake, translocation to shoots, and volatilization.
Article in Environmental science & technology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
24 citing papers in PubMed, 131 citations in OpenAlex.
- Nutrient-Driven Modulation of Microbial, Plant, and Rhizosphere Processes for Heavy Metal Remediation.Plants (Basel, Switzerland) · 2026Review
- Diversity of Mercury-Tolerant Microorganisms.Microorganisms · 2025Review
- Evaluating the Accumulation of Grain Mercury in Engineered Rice Lines ContainingPlants (Basel, Switzerland) · 2024Article
- Reducing Heavy Metal Contamination in Soil and Water Using Phytoremediation.Plants (Basel, Switzerland) · 2024Review
- Review
- Chloroplast Engineering: Fundamental Insights and Its Application in Amelioration of Environmental Stress.Applied biochemistry and biotechnology · 2023Review
- Utilization of Legume-Nodule Bacterial Symbiosis in Phytoremediation of Heavy Metal-Contaminated Soils.Biology · 2022Review
- Demethylation-The Other Side of the Mercury Methylation Coin: A Critical Review.ACS environmental Au · 2022Review
- Is Genetic Engineering a Route to Enhance Microalgae-Mediated Bioremediation of Heavy Metal-Containing Effluents?Molecules (Basel, Switzerland) · 2022Review
- Phytoremediation and Microorganisms-Assisted Phytoremediation of Mercury-Contaminated Soils: Challenges and Perspectives.International journal of environmental research and public health · 2021Review
- Green giant-a tiny chloroplast genome with mighty power to produce high-value proteins: history and phylogeny.Plant biotechnology journal · 2021Review
- Transgenic merA and merB expression reduces mercury contamination in vegetables and grains grown in mercury-contaminated soil.Plant cell reports · 2020Article
- Plastid Transformation: How Does it Work? Can it Be Applied to Crops? What Can it Offer?International journal of molecular sciences · 2020Review
- Sources, toxicity, and remediation of mercury: an essence review.Environmental monitoring and assessment · 2019Review
- Mercury contamination in selected foodstuffs and potential health risk assessment along the artisanal gold mining, Gilgit-Baltistan, Pakistan.Environmental geochemistry and health · 2018Article
- Recent strategies of increasing metal tolerance and phytoremediation potential using genetic transformation of plants.Plant biotechnology reports · 2018Review
- Phytodetoxification of TNT by transplastomic tobacco (Nicotiana tabacum) expressing a bacterial nitroreductase.Plant molecular biology · 2017Article
- Recent achievements obtained by chloroplast transformation.Plant methods · 2017Review
- Article
- Plastid biotechnology for crop production: present status and future perspectives.Plant molecular biology · 2011Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
Transgenic tobacco plants engineered with bacterial merA and merB genes via the chloroplast genome were investigated to study the uptake, translocation of different forms of mercury (Hg) from roots to shoots, and their volatilization. Untransformed plants, regardless of the form of Hg supplied, reached a saturation point at 200 microM of phenylmercuric acetate (PMA) or HgCl2, accumulating Hg concentrations up to 500 microg g(-1) with significant reduction in growth. In contrast, chloroplast transgenic lines continued to grow well with Hg concentrations in root tissues up to 2000 microg g(-1). Chloroplasttransgenic lines accumulated both the organic and inorganic Hg forms to levels surpassing the concentrations found in the soil. The organic-Hg form was absorbed and translocated more efficiently than the inorganic-Hg form in transgenic lines, whereas no such difference was observed in untransformed plants. Chloroplast-transgenic lines showed about 100-fold increase in the efficiency of Hg accumulation in shoots compared to untransformed plants. This is the first report of such high levels of Hg accumulation in green leaves or tissues. Transgenic plants attained a maximum rate of elemental-Hg volatilization in two days when supplied with PMA and in three days when supplied with inorganic-Hg, attaining complete volatilization within a week. The combined expression of merAB via the chloroplast genome enhanced conversion of Hg2+ into Hg,0 conferred tolerance by rapid volatilization and increased uptake of different forms of mercury, surpassing the concentrations found in the soil. These investigations provide novel insights for improvement of plant tolerance and detoxification of mercury.
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Registered trials
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