Cited by 226Heavy metals in environmentSelenium in Biological SystemsChromium effects and bioremediation

Field Trial of Transgenic Indian Mustard Plants Shows Enhanced Phytoremediation of Selenium-Contaminated Sediment

Bañuelos, Gary, Terry, Norman, LeDuc, Danika L., Pilon-Smits, Elizabeth A. H., Mackey, Bruce·2005·Environmental Science & Technology

Abstract

Three transgenic Indian mustard [Brassica juncea (L.) Czern.] lines were tested under field conditions for their ability to remove selenium (Se) from Se- and boron-contaminated saline sediment. The transgenic lines overexpressed genes encoding the enzymes adenosine triphosphate sulfurylase (APS), gamma-glutamyl-cysteine synthetase (ECS), and glutathione synthetase (GS), respectively. The APS, ECS, and GS transgenic plants accumulated 4.3, 2.8, and 2.3-fold more Se in their leaves than wild type, respectively (P < 0.05). GS plants significantly tolerated the contaminated soil better than wild type, attaining an aboveground biomass/area almost 80% of that of GS plants grown on clean soil, compared to 50% for wild type plants. This is the first report showing that plants genetically engineered for phytoremediation can perform successfully under field conditions.

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Registry

Crossref · 10.1021/es049035f

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42 of 42 references verified0 citation errors · 0 not checkable

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  • Genetic engineering for higher selenium levels in plants has been reviewed and applied to Brassica crops in field conditions.

    “Genetic engineering for the promotion of higher Se levels in plant has been reviewed earlier by others [34,35] and applied to Brassica crops in field conditions [36,37].”
  • The majority of information on the pathways of Se methylation is based on research conducted with (Se-tolerant) plants and has been extensively reviewed.

    “The majority of information on the pathways of Se methylation is based on research conducted with (Se-tolerant) plants [36,37] and has been extensively reviewed [49,55].”
  • Methylation and volatilization of Se from soils has been of particular interest for bioremediation strategies in high-Se environments that rely on the activity of microbes and vegetation to volatilize Se and thereby reduce Se contamination in the surface environment.

    “Methylation and volatilization of Se from soils has been of particular interest for bioremediation strategies in high-Se environments that rely on the activity of microbes and vegetation to volatilize Se and thereby reduce Se contamination in the surface environment [36].”

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Authors
Bañuelos, G., Terry, N., LeDuc, D. L., Pilon-Smits, E. A. H., & Mackey, B.
Affiliations
  • United States Department of Agriculture (US)
  • ARS-USDA, 9611 South Riverbend Avenue, Parlier, California 93648, Department of Plant and Microbial Biology, 111 Koshland Hall, University of California, Berkeley, California 94720-3102, Biology Department, Colorado State University, Fort Collins, Colorado 80523, and ARS-USDA, 800 Buchanan, Albany, California 94710
Corresponding author
Terry, Norman
Venue
Environmental Science & Technology
Published
2005-02-01
Volume
39
Issue
6
Pages
1771-1777
ISSN
  • 0013-936X (ISSN-L)
  • 1520-5851
OpenAlex
W2038565051
Cited by
226
References
42
Citations by year
2026: 5 · 2025: 2 · 2024: 6 · 2023: 9 · 2022: 14 · 2021: 14 · 2020: 20 · 2019: 17 · 2018: 10 · 2017: 18 · 2016: 5 · 2015: 12 · 2014: 7 · 2013: 12 · 2012: 10
FWCI
13.71
Type
journal article
Language
en
Open access
closed
Locations
  • Environmental Science & Technology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • University of California Berkeley
  • Animal and Plant Health Inspection Service
Topics
  • Physical Sciences › Environmental Science › Pollution › Heavy metals in environment
  • Health Sciences › Nursing › Nutrition and Dietetics › Selenium in Biological Systems
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Chromium effects and bioremediation
Keywords
phytoremediation, selenium, transgenic plants, Brassica juncea, saline sediments, boron contamination, gamma-glutamylcysteine synthetase, glutathione synthetase, selenium accumulation, plant tolerance, field trials
MeSH terms
Biodegradation, Environmental, Mustard Plant, Selenium, Soil Pollutants, Biomass, Plants, Genetically Modified

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