Evidence map›Paper›PMID 12232134›Full record

ArticlePlant physiology1994

Interactions between Light and the Circadian Clock in the Regulation of CAT2 Expression in Arabidopsis.

H. H. Zhong, J. C. Young, E. A. Pease, R. P. Hangarter, C. R. McClung

Open access · bronzeAbstract read
In one paragraph

Article in Plant physiology, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
10.3field-weighted citation impact, top 2% 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

35 citing papers in PubMed, 93 citations in OpenAlex.

  1. Review
  2. Review
  3. The Role of Nitric Oxide-InducedFrontiers in plant science · 2021
    Article
  4. Plant catalases as NO and HRedox biology · 2020
    Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. NADPH oxidase activity is required for ER stress survival in plants.The Plant journal : for cell and molecular biology · 2018
    Article
  10. Article
  11. Review
  12. Putative role of the malate valve enzyme NADP-malate dehydrogenase in H2O2 signalling in Arabidopsis.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2014
    Article
  13. Article
  14. Article
  15. Article
  16. Circadian control by the reduction/oxidation pathway: catalase represses light-dependent clock gene expression in the zebrafish.Proceedings of the National Academy of Sciences of the United States of America · 2007
    Article
  17. Article
  18. Article
  19. The Arabidopsis circadian system.The arabidopsis book · 2002
    Article
  20. Article
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

5 authors at 1 institution in 1 country.

H. H. ZhongDepartment of Biological Sciences, Dartmouth College, Hanover, New Hampshire 03755-3576 (H.H.Z., E.A.P., C.R.M.).
J. C. Young
E. A. Pease
R. P. Hangarter
C. R. McClung
Dartmouth College · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In Arabidopsis seedlings germinated and grown in continuous light, CAT2 mRNA abundance peaks 1 d after imbibition, consistent with the role of catalase in detoxifying H2O2 generated during the [beta]-oxidation of fatty acids stored in the seed. A second peak of CAT2 mRNA abundance, of lower amplitude than the initial peak, appears 6 d after imbibition and may be associated with the development of photosynthetic competence and induction of photorespiration. This second peak in steady-state CAT2 mRNA abundance is regulated by light and is not seen in etiolated seedlings. CAT2 mRNA accumulation is induced by exposure to high-fluence blue or far-red light but not by red light. In addition, light induction is unaffected by several mutations that block blue light-mediated inhibition of hypocotyl elongation (blu1, blu2, blu3, hy4), suggesting phytochrome involvement. When etiolated seedlings are transferred to continuous white light, CAT2 mRNA rapidly (within 30 min) accumulates. It is interesting that in these seedlings CAT2 mRNA abundance undergoes pronounced oscillations with a circadian (24 h) periodicity, indicating control by the endogenous circadian clock. No such oscillations are detected in CAT2 mRNA abundance in etiolated seedlings prior to illumination. Control of CAT2 expression by the circadian clock is also seen in 5-week-old plants grown in a light-dark cycle and transferred either to continuous dark or to continuous light; in continuous light the circadian oscillations in CAT2 mRNA abundance persist for at least five circadian cycles, indicating the robustness of this circadian rhythm.

Identifiers

PMID12232134
PMCPMC160686
OpenAlexW1533362361

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.