Evidence map›Paper›PMID 26184178›Full record

ArticleInternational journal of molecular sciences2015

Chromium-Induced Ultrastructural Changes and Oxidative Stress in Roots of Arabidopsis thaliana.

Eleftherios P Eleftheriou, Ioannis-Dimosthenis S Adamakis, Emmanuel Panteris, Maria Fatsiou

Open access · goldAbstract read
In one paragraph

Article in International journal of molecular sciences, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
4.4field-weighted citation impact, top 6% 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

32 citing papers in PubMed, 128 citations in OpenAlex.

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  13. Zinc oxide nanoparticles improve lettuce (Frontiers in plant science · 2022
    Article
  14. Salicylic acid alleviates chromium (VI) toxicity by restricting its uptake, improving photosynthesis and augmenting antioxidant defense inPhysiology and molecular biology of plants : an international journal of functional plant biology · 2021
    Article
  15. Article
  16. Chromium stress induced oxidative burst inPhysiology and molecular biology of plants : an international journal of functional plant biology · 2021
    Article
  17. 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

4 authors at 1 institution in 1 country.

Eleftherios P EleftheriouDepartment of Botany, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece. eelefth@bio.auth.gr.
Ioannis-Dimosthenis S AdamakisDepartment of Botany, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece. iadamaki@bio.auth.gr.
Emmanuel PanterisDepartment of Botany, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece. epanter@bio.auth.gr.
Maria FatsiouDepartment of Botany, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece. mfatsiou@windowslive.com.
Aristotle University of Thessaloniki · GR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chromium (Cr) is an abundant heavy metal in nature, toxic to living organisms. As it is widely used in industry and leather tanning, it may accumulate locally at high concentrations, raising concerns for human health hazards. Though Cr effects have extensively been investigated in animals and mammals, in plants they are poorly understood. The present study was then undertaken to determine the ultrastructural malformations induced by hexavalent chromium [Cr(VI)], the most toxic form provided as 100 μM potassium dichromate (K2Cr2O7), in the root tip cells of the model plant Arabidopsis thaliana. A concentration-dependent decrease of root growth and a time-dependent increase of dead cells, callose deposition, hydrogen peroxide (H2O2) production and peroxidase activity were found in Cr(VI)-treated seedlings, mostly at the transition root zone. In the same zone, nuclei remained ultrastructurally unaffected, but in the meristematic zone some nuclei displayed bulbous outgrowths or contained tubular structures. Endoplasmic reticulum (ER) was less affected under Cr(VI) stress, but Golgi bodies appeared severely disintegrated. Moreover, mitochondria and plastids became spherical and displayed translucent stroma with diminished internal membranes, but noteworthy is that their double-membrane envelopes remained structurally intact. Starch grains and electron dense deposits occurred in the plastids. Amorphous material was also deposited in the cell walls, the middle lamella and the vacuoles. Some vacuoles were collapsed, but the tonoplast appeared integral. The plasma membrane was structurally unaffected and the cytoplasm contained opaque lipid droplets and dense electron deposits. All electron dense deposits presumably consisted of Cr that is sequestered from sensitive sites, thus contributing to metal tolerance. It is concluded that the ultrastructural changes are reactive oxygen species (ROS)-correlated and the malformations observed are organelle specific.

Indexed as

ArabidopsisCell WallChromiumEndoplasmic ReticulumGolgi ApparatusHydrogen PeroxideMicroscopy, Electron, TransmissionMitochondriaOxidative StressPeroxidasesPlant RootsReactive Oxygen SpeciesSeedlingsVacuolesChromiumchromium hexavalent ionHydrogen PeroxidePeroxidasesReactive Oxygen SpeciesArabidopsis thalianaCr(VI) toxicityelectron dense depositsoxidative stressultrastructural effects

Identifiers

PMID26184178
PMCPMC4519928
OpenAlexW1512179082

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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.