Evidence map›Paper›PMID 15269333›Full record

ArticleThe Plant cell2004

Increased glutathione biosynthesis plays a role in nickel tolerance in thlaspi nickel hyperaccumulators.

John L Freeman, Michael W Persans, Ken Nieman, Carrie Albrecht, Wendy Peer, Ingrid J Pickering, David E Salt

Open access · greenAbstract read
In one paragraph

Article in The Plant cell, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers.

0numbers the graph read from it
0cells of the map it votes in
90citing papers in PubMed
7.1field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

90 citing papers in PubMed, 64 citations in OpenAlex.

  1. Nickel Toxicity in Plants.International journal of molecular sciences · 2026
    Review
  2. The Feedback of Stress Phytohormones inPlants (Basel, Switzerland) · 2025
    Article
  3. Review
  4. Article
  5. Effects of metal amendment and metalloid supplementation on foliar defences are plant accession-specific in the hyperaccumulator Arabidopsis halleri.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2024
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Phytochelatins: Sulfur-Containing Metal(loid)-Chelating Ligands in Plants.International journal of molecular sciences · 2023
    Review
  11. Review
  12. Heterologous Expression of the Phytochelatin SynthaseInternational journal of environmental research and public health · 2022
    Article
  13. Glutathione Modulation in PVYInternational journal of molecular sciences · 2022
    Article
  14. Article
  15. Article
  16. Review
  17. Plants (Basel, Switzerland) · 2021
    Review
  18. Article
  19. Article
  20. Review

30 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

John L FreemanCenter for Plant Environmental Stress Physiology, Purdue University, West Lafayette, Indiana 47907, USA.
Michael W Persans
Ken Nieman
Carrie Albrecht
Wendy Peer
Ingrid J Pickering
David E Salt
Purdue University West Lafayette · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Worldwide more than 400 plant species are now known that hyperaccumulate various trace metals (Cd, Co, Cu, Mn, Ni, and Zn), metalloids (As) and nonmetals (Se) in their shoots. Of these, almost one-quarter are Brassicaceae family members, including numerous Thlaspi species that hyperaccumulate Ni up to 3% of there shoot dry weight. We observed that concentrations of glutathione, Cys, and O-acetyl-l-serine (OAS), in shoot tissue, are strongly correlated with the ability to hyperaccumulate Ni in various Thlaspi hyperaccumulators collected from serpentine soils, including Thlaspi goesingense, T. oxyceras, and T. rosulare, and nonaccumulator relatives, including T. perfoliatum, T. arvense, and Arabidopsis thaliana. Further analysis of the Austrian Ni hyperaccumulator T. goesingense revealed that the high concentrations of OAS, Cys, and GSH observed in this hyperaccumulator coincide with constitutively high activity of both serine acetyltransferase (SAT) and glutathione reductase. SAT catalyzes the acetylation of l-Ser to produce OAS, which acts as both a key positive regulator of sulfur assimilation and forms the carbon skeleton for Cys biosynthesis. These changes in Cys and GSH metabolism also coincide with the ability of T. goesingense to both hyperaccumulate Ni and resist its damaging oxidative effects. Overproduction of T. goesingense SAT in the nonaccumulator Brassicaceae family member Arabidopsis was found to cause accumulation of OAS, Cys, and glutathione, mimicking the biochemical changes observed in the Ni hyperaccumulators. In these transgenic Arabidopsis, glutathione concentrations strongly correlate with increased resistance to both the growth inhibitory and oxidative stress induced effects of Ni. Taken together, such evidence supports our conclusion that elevated GSH concentrations, driven by constitutively elevated SAT activity, are involved in conferring tolerance to Ni-induced oxidative stress in Thlaspi Ni hyperaccumulators.

Indexed as

AcetyltransferasesArabidopsisCysteineEnzyme ActivationGlutathioneGlutathione ReductaseLipid PeroxidationMolecular Sequence DataNickelOxidative StressPlants, Genetically ModifiedPlant ShootsReactive Oxygen SpeciesSerineSerine O-AcetyltransferaseSulfurAcetyltransferasesCysteineGlutathioneGlutathione ReductaseNickelO-acetylserineReactive Oxygen SpeciesSerineSerine O-AcetyltransferaseSulfurThiobarbituric Acid Reactive Substances

Identifiers

PMID15269333
PMCPMC519206
OpenAlexW212993358

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.