Evidence map›Paper›PMID 14526116›Full record

ArticlePlant physiology2003

Seed 1-cysteine peroxiredoxin antioxidants are not involved in dormancy, but contribute to inhibition of germination during stress.

Camilla Haslekås, Marte K Viken, Paul E Grini, Vigdis Nygaard, Silje H Nordgard, Trine J Meza, Reidunn B Aalen

Open access · bronzeAbstract read
In one paragraph

Article in Plant physiology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

37 citing papers in PubMed, 127 citations in OpenAlex.

  1. Involvement of Abscisic Acid in Transition of Pea (Plants (Basel, Switzerland) · 2024
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  2. Review
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  4. Seed-to-Seedling Transition inPlants (Basel, Switzerland) · 2022
    Article
  5. Article
  6. Review
  7. Article
  8. Article
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  11. Review
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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.

Camilla HaslekåsDivision of Cell and Molecular Biology, Department of Biology, University of Oslo, P.O. Box 1031 Blindern, N-0315 Oslo, Norway.
Marte K Viken
Paul E Grini
Vigdis Nygaard
Silje H Nordgard
Trine J Meza
Reidunn B Aalen
University of Oslo · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Peroxiredoxins (Prx) are thiol-dependent antioxidants containing one (1-cysteine [-Cys]) or two (2-Cys) conserved Cys residues that protect lipids, enzymes, and DNA against reactive oxygen species. In plants, the 1-Cys Prxs are highly expressed during late seed development, and the expression pattern is dormancy related in mature seeds. We have expressed the Arabidopsis 1-Cys Prx AtPER1 in Escherichia coli and show that this protein has antioxidant activity in vitro and protects E. coli in vivo against the toxic oxidant cumene hydroperoxide. Although some 1-Cys Prxs are targeted to the nucleus, a green fluorescent protein-AtPER1 fusion protein was also localized to the cytoplasm in an onion epidermis subcellular localization assay. It has been proposed that seed Prxs are involved in maintenance of dormancy and/or protect the embryo and aleurone layer surviving desiccation against damage caused by reactive oxygen species. These hypotheses were tested using transgenic Arabidopsis lines overexpressing the barley (Hordeum vulgare) 1-Cys PER1 protein and lines with reduced levels of AtPER1 due to antisensing or RNA interference. We found no correlation between Prx levels and the duration of the after-ripening period required before germination. Thus, Prxs are unlikely to contribute to maintenance of dormancy. RNA interference lines almost devoid of AtPER1 protein developed and germinated normally under standard growth room conditions. However, seeds from lines overexpressing PER1 were less inclined to germinate than wild-type seeds in the presence of NaCl, mannitol, and methyl viologen, suggesting that Prx can sense harsh environmental surroundings and play a part in the inhibition of germination under unfavorable conditions.

Indexed as

ArabidopsisArabidopsis ProteinsCell NucleusCytoplasmEscherichia coliGerminationGreen Fluorescent ProteinsLuminescent ProteinsMannitolParaquatPhenotypePlants, Genetically ModifiedRecombinant Fusion ProteinsSeedsSodium ChlorideArabidopsis ProteinsGreen Fluorescent ProteinsLuminescent ProteinsMannitolParaquatPer1 protein, ArabidopsisRecombinant Fusion ProteinsSodium Chloride

Identifiers

PMID14526116
PMCPMC281610
OpenAlexW2102315416

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.