Cited by 28Heavy metals in environmentHeavy Metals in PlantsChromium effects and bioremediation

Root and shoot response to nickel in hyperaccumulator and non-hyperaccumulator species

Open access
Rosatto, Stefano, Mariotti, Mauro, Romeo, Sara, Roccotiello, Enrica·2021·Plants

Abstract

The soil–root interface is the micro-ecosystem where roots uptake metals. However, less than 10% of hyperaccumulators’ rhizosphere has been examined. The present study evaluated the root and shoot response to nickel in hyperaccumulator and non-hyperaccumulator species, through the analysis of root surface and biomass and the ecophysiological response of the related aboveground biomass. Ni-hyperaccumulators Alyssoides utriculata (L.) Medik. and Noccaea caerulescens (J. Presl and C. Presl) F.K. Mey. and non-hyperaccumulators Alyssum montanum L. and Thlaspi arvense L. were grown in pot on Ni-spiked soil (0–1000 mg Ni kg−1, total). Development of root surfaces was analysed with ImageJ; fresh and dry root biomass was determined. Photosynthetic efficiency was performed by analysing the fluorescence of chlorophyll a to estimate the plants’ physiological conditions at the end of the treatment. Hyperaccumulators did not show a Ni-dependent decrease in root surfaces and biomass (except Ni 1000 mg kg−1 for N. caerulescens). The non-hyperaccumulator A. montanum suffers metal stress which threatens plant development, while the excluder T. arvense exhibits a positive ecophysiological response to Ni. The analysis of the root system, as a component of the rhizosphere, help to clarify the response to soil nickel and plant development under metal stress for bioremediation purposes.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.3390/plants10030508

Cites

124 of 124 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

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?

  • Nickel is essential but has serious negative consequences when its concentration in plants exceeds 0.85 mM kg−1 plant dry biomass.

    “Nickel (Ni) belongs to the essential category of metal ions, but its serious negative consequences appear when its concentration in plants exceeds 0.85 mM kg−1 plant dry biomass (Rosatto et al., 2021).”

    From Plant hyperaccumulators: a state-of-the-art review on mechanism of heavy metal transport and sequestration (2025) · cites this paper as Rosatto et al., 2021

    The Introduction describes nickel as potentially toxic in soils, but the paper does not identify 0.85 mM kg−1 of plant dry biomass as a threshold for harmful effects or establish that nickel is essential. The Results (§2.1; page unavailable) also report that some species accumulated substantial nickel without the claimed general pattern of harm. (LLM, conf=0.82)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

2 of the 126 references couldn’t be matched to a known paper.

Research works printed but not linked: 3

  1. [17]Reeves R.D. Baker A.J. Metal Accumulating Plants. Phytoremediation Toxic Met. Using Plants Clean Up environment Ensley R.I. John Wiley Sons Inc. New York, NY, USA 2000
  2. [112]Isbell T. Thlaspi arvense (Pennycress) as a Biodiesel in a One Year-Two Crop Rotation with Soybean Association for the Advancement of Industrial Crops Conference Agricultural Research Service U.S. Department of Agriculture Washington, DC, USA 2008 Volume 6
  3. [117]Charlot G. Colorimetric Determination of Elements, Principles and Methods: By G. Charlot Elsevier Amsterdam, The Netherlands 1964

Cited by

Sorted by citations

Authors
Rosatto, S., Mariotti, M., Romeo, S., & Roccotiello, E.
Affiliations
University of Genoa (IT)
Corresponding author
Roccotiello, Enrica
Venue
Plants
Publisher
MDPI AG
Published
2021-03-09
Volume
10
Issue
3
Pages
508
ISSN
2223-7747 (ISSN-L)
OpenAlex
W3135384532
Cited by
28
References
126
Citations by year
2026: 10 · 2025: 5 · 2024: 6 · 2023: 2 · 2022: 3 · 2021: 2
FWCI
0.81
Type
journal article
Language
en
Open access
Locations
  • Plants (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • CINECA IRIS Institutial Research Information System (University of Genoa) (submittedVersion)
Funders
Università degli Studi di Genova
Topics
  • Physical Sciences › Environmental Science › Pollution › Heavy metals in environment
  • Physical Sciences › Chemistry › Analytical Chemistry › Heavy Metals in Plants
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Chromium effects and bioremediation
Keywords
nickel hyperaccumulation, nickel stress, root surface area, root biomass, shoot biomass, photosynthetic efficiency, chlorophyll fluorescence, rhizosphere, Alyssoides utriculata, Noccaea caerulescens, Alyssum montanum, Thlaspi arvense, metal exclusion, metal hyperaccumulators, bioremediation

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