Cited by 104Heavy metals in environmentHeavy Metals in PlantsPlant Micronutrient Interactions and Effects

Plant Cd2+ and Zn2+ status effects on root and shoot heavy metal accumulation in Thlaspi caerulescens

Papoyan, Ashot, Piñeros, Miguel, Kochian, Leon V.·2007·New Phytologist

Abstract

* In this study we address the impact of changes in plant heavy metal, (i.e. zinc (Zn) and cadmium (Cd)) status on metal accumulation in the Zn/Cd hyperaccumulator, Thlaspi caerulescens. * Thlaspi caerulescens plants were grown hydroponically on both high and low Zn and Cd regimes and whole-shoot and -root metal accumulation, and root (109)Cd(2+) influx were determined. * High-Zn-grown (500 microm Zn) plants were found to be more Cd-tolerant than plants grown in standard Zn conditions (1 microm Zn). Furthermore, shoot Cd accumulation was significantly greater in the high-Zn-grown plants. A positive correlation was also found between shoot Zn accumulation and increased plant Cd status. Radiotracer (109)Cd root flux experiments demonstrated that high-Zn-grown plants maintained significantly higher root Cd(2+) influx than plants grown on 1 microm Zn. It was also found that both nickel (Ni) and copper (Cu) shoot accumulation were stimulated by high plant Zn status, while manganese (Mn) accumulation was not affected. * A speculative model is presented to explain these findings, suggesting that xylem loading may be one of the key sites responsible for the hyperaccumulation of Zn and Cd accumulation in Thlaspi caerulescens.

Integrity signals

Registry

Crossref · 10.1111/j.1469-8137.2007.02073.x

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21 of 21 references verified0 citation errors · 0 not checkable

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  • Noccaea caerulescens was more tolerant to Cd grown under high zinc concentration and accumulated higher concentrations of Cd/Zn in hydroponics-based experiments.

    “Hydroponics-based experiments reveal that Noccaea caerulescens was more tolerant to Cd grown under high zinc concentration and accumulated higher concentrations of Cd/Zn (Papoyan et al., 2007).”

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Authors
Papoyan, A., Piñeros, M., & Kochian, L. V.
Affiliations
Agricultural Research Service (US)
Corresponding author
Kochian, Leon V.
Venue
New Phytologist
Publisher
Wiley
Published
2007-04-18
Volume
175
Issue
1
Pages
51-58
ISSN
  • 0028-646X (ISSN-L)
  • 1469-8137
OpenAlex
W2155315400
Cited by
104
References
21
Citations by year
2026: 1 · 2025: 7 · 2024: 4 · 2023: 8 · 2022: 6 · 2021: 4 · 2020: 7 · 2019: 9 · 2018: 3 · 2017: 5 · 2016: 3 · 2015: 7 · 2014: 3 · 2013: 7 · 2012: 11
FWCI
5.05
Type
journal article
Language
en
Open access
closed
Locations
  • New Phytologist (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Environmental Science › Pollution › Heavy metals in environment
  • Physical Sciences › Chemistry › Analytical Chemistry › Heavy Metals in Plants
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Micronutrient Interactions and Effects
Keywords
Thlaspi caerulescens, cadmium hyperaccumulation, zinc status, cadmium tolerance, heavy metal accumulation, xylem loading, nickel accumulation, copper accumulation, manganese accumulation, hydroponics
MeSH terms
Cadmium, Cadmium Radioisotopes, Kinetics, Zinc, Plant Leaves, Plant Roots, Plant Shoots, Metals, Heavy, Thlaspi

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