A Field Trial of TCE Phytoremediation by Genetically Modified Poplars Expressing Cytochrome P450 2E1

Legault, Emily; James, Christopher; Stewart, Keith; Muiznieks, Indulis; Doty, Sharon L.; Strand, Stuart E.

doi:10.1021/acs.est.5b04758

Cited by 25 publications

(10 citation statements)

References 48 publications

(96 reference statements)

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“…For example, 4‐year‐old trees of ‘OP‐367’ were associated with a 99% reduction of chlorinated ethenes in PCE‐contaminated soils (James et al, ). In contrast, Legault et al () reported a reduced level of TCE removal from field‐soils relative to the quantities exhibited in the greenhouse, though transgenic poplars were associated with greater levels of TCE removal than their wild‐type counterparts. To increase TCE removal in the field, Doty et al () inoculated poplar trees with a natural bacterial endophyte, Enterobacter sp.…”

Section: Review Of Ecosystem Services At Phytoremediation Installationsmentioning

confidence: 90%

Ecosystem services of poplar at long‐term phytoremediation sites in the Midwest and Southeast, United States

Zalesny

Headlee

Gopalakrishnan

et al. 2019

WIREs Energy & Environment

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Short rotation woody crops (SRWCs) including Populus species and their hybrids (i.e., poplars) are ideal for incorporating biomass production with phytotechnologies such as phytoremediation. To integrate these applications, 15 poplar plantings from nine long-term phytoremediation installations were sampled from 2012 to 2013 in the Midwest (Illinois, Iowa, Wisconsin) and Southeast (Alabama, Florida, North Carolina) United States. In this review, we report summary results of this sampling and how performance at each site compared with comparable phytoremediation systems in the literature. We review significant genotypic differences from each planting within the context of provisioning (i.e., biomass production) and regulating (i.e., carbon sequestration) ecosystem services and how they relate to the need for a cleaner environment during times of accelerated ecological degradation. Overall, the contaminated poplar sites provided these ecosystem services comparable to noncontaminated poplar sites used for bioenergy and biofuels feedstock production. For example, phytoremediation trees at the Midwestern sites had biomass values ranging from 4.4 to 15.5 Mg ha −1 y −1 , which was~20% less relative to bioenergy trees (p = .0938). Results were similar for diameter and carbon, with some genotype × environment interactions resulting in phytoremediation trees exhibiting substantially greater growth and productivity (i.e., +131% at one site). As illustrated in the current review, phytoremediation success can be increased with the identification and deployment of genotypes tailored to grow well and tolerate a broad diversity of contaminants (generalists) (i.e., 'DN34', 'NM6', '7300501') versus those that significantly outperform their counterparts under unique site conditions (specialists) (i.e., '220-5', '51-5', 'S13C20').

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Section: Review Of Ecosystem Services At Phytoremediation Installationsmentioning

confidence: 90%

Ecosystem services of poplar at long‐term phytoremediation sites in the Midwest and Southeast, United States

Zalesny

Headlee

Gopalakrishnan

et al. 2019

WIREs Energy & Environment

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“…In the past decade, the CYP2E1 gene has been introduced into various plants, including tobacco, poplar, Sesbania grandiflora, and Arabidopsis thaliana plants, for phytoremediation of different contaminations, including TCE (Doty et al, 2000;Doty et al, 2007;James et al, 2008;Legault et al, 2017), and DDT (Mouhamad et al, 2012).…”

Section: Mammalian Genes Transformed To Alfalfa For Phytoremediationmentioning

confidence: 99%

Alfalfa (Medicago Sativa L.): Genotypic Diversity and Transgenic Alfalfa for Phytoremediation

Tussipkan

Manabayeva

2022

Front. Environ. Sci.

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Soil contamination caused by industrial and agricultural activities is an environmental problem that poses a serious risk to human health and the ecosystem. Persistent organic pollutants (POPs) are organic chemicals that persist in the environment for long periods because of their high resistance to photolytic, chemical, and biological degradation. Besides POPs, high concentrations of non-essential heavy metals and metalloids, such as arsenic, cadmium, and lead, are increasingly becoming a problem worldwide. Remediation strategies for organic and inorganic pollutants in the environment have received global attention. For organic or inorganic contaminants, phytoremediation is the strategy of choice because of a green technology that uses plants and solar energy to clean hyper-accumulated toxic pollutants from the environment. Some plant species have a high capacity to grow and survive in elevated levels of contaminants. With a long cultivation history and adaptability to a wide range of territories, alfalfa has not only widely been used for animal feed and a medicinal herb but is also an ideal natural resource and model plant for remediation of contaminated soils, offering a variety of elite characteristics. This review provides, firstly, abundant genomic information on the genetic diversity and population structure of alfalfa. Secondly, we focused on the transgenic alfalfa plants for enhanced phytoremediation of POPs, such as atrazine, polychlorinated biphenyl (PCB), and trichloroethylene (TCE), as well as phytoremediation of petroleum and heavy metals. Thirdly, the future perspective of enhancement of phytoremediation efficiency was discussed in depth. This review is intended to provide a comprehensive overview of the phytoremediation capabilities of transgenic alfalfa plants, presenting fundamental information for future research studies for enhancing phytoremediation efficiency.

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“…Natural treatment systems, such as constructed wetlands (Kassenga, Pardue, Blair, & Ferraro, ) phytoremediation (Legault et al, ), and in situ bioreactors (Gamlin, Cox, & Castor, ) using locally available materials, and the progress in understanding microbiology hold great promise for contaminated site remediation. Natural treatment systems leverage the power of nature and decrease emphasis on intensive engineered elements.…”

Section: Sustainable Remediation In the Next 10 Yearsmentioning

confidence: 99%

Ten years later: The progress and future of integrating sustainable principles, practices, and metrics into remediation projects

Favara

Raymond

Ambrusch³

et al. 2019

Remediation Journal

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In 2009, the Sustainable Remediation Forum released a white paper entitled “Integrating sustainable principles, practices, and metrics into remediation projects” (Ellis & Hadley, 2009, Remediation, 19, pp. 5–114). Sustainable remediation was a relatively new concept, and the white paper explored a range of approaches on how sustainability could be integrated into traditional remediation projects. This paper revisits the 2009 white paper, providing an overview of the early days of the evolving sustainable remediation practice and an assessment of the progress of sustainable remediation over the last 10 years with a primary focus on the United States. The current state of the sustainable remediation practice includes published literature, current practices and resources, applications, room for improvement, international progress, the virtuous cycle that applying sustainable remediation creates, and the status of the objectives cited in the 2009 white paper. Over the last decade, several sustainable remediation frontiers have emerged that will likely be a focus in advancing the practice. These frontiers include climate change and resiliency, weighting and valuation to help better consolidate different sustainable remediation metrics, programmatic implementation, and better integration of the societal impacts of sustainable remediation. Finally, as was the case for the 2009 white paper, this paper explores how sustainable remediation may evolve over the next 10 years and focuses on the events and drivers that can be significant in the pace of further development of the practice. The events and drivers include transformation impacts, societal influences, and the continued development of new technologies, approaches, and tools by remediation practitioners. The remediation industry has made significant progress in developing the practice of sustainable remediation and has implemented it successfully into hundreds of projects. While progress has been significant, an opportunity exists to implement the tenets of sustainable remediation on many more projects and explore new frontiers to help improve the communication, integration, and derived benefits from implementing sustainable remediation into future remediation projects.

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A Field Trial of TCE Phytoremediation by Genetically Modified Poplars Expressing Cytochrome P450 2E1

Cited by 25 publications

References 48 publications

Ecosystem services of poplar at long‐term phytoremediation sites in the Midwest and Southeast, United States

Ecosystem services of poplar at long‐term phytoremediation sites in the Midwest and Southeast, United States

Alfalfa (Medicago Sativa L.): Genotypic Diversity and Transgenic Alfalfa for Phytoremediation

Ten years later: The progress and future of integrating sustainable principles, practices, and metrics into remediation projects

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