Evidence map›Paper›PMID 11891305›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2002

Hydrogen peroxide homeostasis: activation of plant catalase by calcium/calmodulin.

T Yang, B W Poovaiah

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 133 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
133citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

133 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. CeOPlant molecular biology · 2026
    Review
  5. Peroxisome calcium uptake is dependent on ER-peroxisome membrane contact.Cellular and molecular life sciences : CMLS · 2026
    Article
  6. Article
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  15. Article
  16. Targeting conserved TIM3Science advances · 2024
    Article
  17. Review
  18. Review
  19. Article
  20. Article

73 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

2 authors.

T YangLaboratory of Plant Molecular Biology and Physiology, Department of Horticulture, Washington State University, Pullman, WA 99164-6414, USA.
B W Poovaiah

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Environmental stimuli such as UV, pathogen attack, and gravity can induce rapid changes in hydrogen peroxide (H(2)O(2)) levels, leading to a variety of physiological responses in plants. Catalase, which is involved in the degradation of H(2)O(2) into water and oxygen, is the major H(2)O(2)-scavenging enzyme in all aerobic organisms. A close interaction exists between intracellular H(2)O(2) and cytosolic calcium in response to biotic and abiotic stresses. Studies indicate that an increase in cytosolic calcium boosts the generation of H(2)O(2). Here we report that calmodulin (CaM), a ubiquitous calcium-binding protein, binds to and activates some plant catalases in the presence of calcium, but calcium/CaM does not have any effect on bacterial, fungal, bovine, or human catalase. These results document that calcium/CaM can down-regulate H(2)O(2) levels in plants by stimulating the catalytic activity of plant catalase. Furthermore, these results provide evidence indicating that calcium has dual functions in regulating H(2)O(2) homeostasis, which in turn influences redox signaling in response to environmental signals in plants.

Indexed as

HomeostasisAmino Acid SequenceArabidopsisArabidopsis ProteinsCalciumCalcium-Calmodulin-Dependent Protein KinasesCatalaseCatalysisCloning, MolecularEnzyme ActivationHydrogen PeroxideModels, BiologicalMolecular Sequence DataNicotianaPeroxisomesPlant LeavesArabidopsis ProteinsCalciumCalcium-Calmodulin-Dependent Protein KinasesCatalaseHydrogen PeroxideNASA Discipline Plant BiologyNon-NASA Center

Identifiers

PMID11891305
PMCPMC122654

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.