Cited by 157Heavy metals in environmentHeavy Metals in PlantsEnvironmental and Analytical Chemistry Studies

Simultaneous Hyperaccumulation of Nickel, Manganese, and Calcium in Alyssum Leaf Trichomes

Broadhurst, C. Leigh, Chaney, Rufus L., Angle, J. Scott, Maugel, Timothy K., Erbe, Eric F., Murphy, Charles A.·2004·Environmental Science & Technology

Abstract

We have developed commercially viable phytoremediation/phytomining technologies employing Alyssum Ni-hyperaccumulator species to quantitatively extract Ni from soils. The majority of Ni is stored either in Alyssum leaf epidermal cell vacuoles or in the basal portions only of the numerous stellate trichomes. Here, we report simultaneous and region-specific localization of high levels of Ni, Mn, and Ca within Alyssum trichomes as determined by scanning electron microscopy/energy-dispersive X-ray analysis (SEM/EDX). Plants were grown in high Ni soil, achieving up to 48 400 microg g(-1) Ni in total leaf concentration; however, Ca and Mn were not enriched in the experimental soils. The region-specific localization of hyperaccumulated Ca, Mn, and Ni occurred in three soil types, five Alyssum species/ecotypes, and over a wide range of soil Ni concentrations. The metal concentration in the trichome basal compartment was approximately 15-20% dry weight, the highest ever reported for healthy vascular plant tissue.

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Crossref · 10.1021/es0493796

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Authors
Broadhurst, C. L., Chaney, R. L., Angle, J. S., Maugel, T. K., Erbe, E. F., & Murphy, C. A.
Affiliations
United States Department of Agriculture (US)
Venue
Environmental Science & Technology
Published
2004-09-29
Volume
38
Issue
21
Pages
5797-5802
ISSN
  • 0013-936X (ISSN-L)
  • 1520-5851
OpenAlex
W2094365609
Cited by
157
References
10
Citations by year
2026: 3 · 2025: 4 · 2024: 6 · 2023: 5 · 2022: 8 · 2021: 8 · 2020: 10 · 2019: 5 · 2018: 5 · 2017: 8 · 2016: 7 · 2015: 5 · 2014: 7 · 2013: 10 · 2012: 12
FWCI
8.11
Type
journal article
Language
en
Open access
closed
Locations
  • Environmental Science & Technology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Environmental Science › Pollution › Heavy metals in environment
  • Physical Sciences › Chemistry › Analytical Chemistry › Heavy Metals in Plants
  • Physical Sciences › Environmental Science › Water Science and Technology › Environmental and Analytical Chemistry Studies
Keywords
Alyssum, nickel hyperaccumulation, manganese, calcium, leaf trichomes, phytoremediation, phytomining, metal localization, vacuoles, ecotypes, soil nickel
MeSH terms
Calcium, Manganese, Microscopy, Electron, Scanning, Nickel, Spectrometry, X-Ray Emission, Vacuoles, Plant Leaves, Plant Epidermis, Brassicaceae

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