Cited by 191Heavy metals in environmentHeavy Metals in PlantsPlant Micronutrient Interactions and Effects

Evolutionary aspects of elemental hyperaccumulation

Open access
Cappa, Jennifer J., Pilon-Smits, Elizabeth A. H.·2014·Planta

Abstract

Hyperaccumulation is the uptake of one or more metal/metalloids to concentrations greater than 50-100× those of the surrounding vegetation or 100-10,000 mg/kg dry weight depending on the element. Hyperaccumulation has been documented in at least 515 taxa of angiosperms. By mapping the occurrence of hyperaccumulators onto the angiosperm phylogeny, we show hyperaccumulation has had multiple origins across the angiosperms. Even within a given order, family or genus, there are typically multiple origins of hyperaccumulation, either for the same or different elements. We address which selective pressures may have led to the evolution of hyperaccumulation and whether there is evidence for co-evolution with ecological partners. Considerable evidence supports the elemental-defense hypothesis, which states that hyperaccumulated elements protect the plants from herbivores and pathogens. There is also evidence that hyperaccumulation can result in drought stress protection, allelopathic effects or physiological benefits. In many instances, ecological partners of hyperaccumulators have evolved resistance to the hyperaccumulated element, indicating co-evolution. Studies on the molecular evolution of hyperaccumulation have pinpointed gene duplication as a common cause of increased metal transporter abundance. Hypertolerance to the hyperaccumulated element often relies upon chelating agents, such as organic acids (e.g., malate, citrate) or peptide/protein chelators that can facilitate transport and sequestration. We conclude the review with a summary and suggested future directions for hyperaccumulator research.

Integrity signals

Registry

Crossref · 10.1007/s00425-013-1983-0

Cites

77 of 77 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Selenium hyperaccumulation has been reported in ~30 species in the families Brassicaceae (Stanleya), Fabaceae (Astragalus) and Asteraceae (Xylorhiza, Oonopsis, Symphyotrichum).

    “Selenium hyperaccumulation has been reported in ~30 species in the families Brassicaceae (Stanleya), Fabaceae (Astragalus) and Asteraceae (Xylorhiza, Oonopsis, Symphyotrichum) [202,203].”

Cites

Flagged first, then by citations

1 of the 78 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Cappa, J. J., & Pilon-Smits, E. A. H.
Affiliations
Colorado State University (US)
Venue
Planta
Published
2013-10-24
Volume
239
Issue
2
Pages
267-275
ISSN
  • 0032-0935 (ISSN-L)
  • 1432-2048
OpenAlex
W2077067017
Cited by
191
References
78
Citations by year
2026: 4 · 2025: 10 · 2024: 17 · 2023: 8 · 2022: 16 · 2021: 14 · 2020: 30 · 2019: 11 · 2018: 15 · 2017: 18 · 2016: 20 · 2015: 21 · 2014: 7
FWCI
1.22
Type
journal article
Language
en
Open access
Locations
  • Planta (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
flowering plants, angiosperm phylogeny, allelopathy, metal transporters, gene duplication, metal tolerance, hyperaccumulator plants
MeSH terms
Ecology, Phylogeny, Selection, Genetic, Time Factors, Evolution, Molecular, Magnoliopsida

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review