Evidence map›Paper›PMID 19028878›Full record

ArticlePlant physiology2009

Alterations in the endogenous ascorbic acid content affect flowering time in Arabidopsis.

Simeon O Kotchoni, Katherine E Larrimore, Madhumati Mukherjee, Chase F Kempinski, Carina Barth

Open access · hybridAbstract read
In one paragraph

Article in Plant physiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
8.2field-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

55 citing papers in PubMed, 140 citations in OpenAlex.

  1. Review
  2. Article
  3. Alfalfa andPhysiology and molecular biology of plants : an international journal of functional plant biology · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. The ascorbate-glutathione cycle coming of age.Journal of experimental botany · 2024
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Review
  17. Article
  18. Article
  19. Review
  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.

Simeon O KotchoniDepartment of Biology, West Virginia University, Morgantown, West Virginia 26506, USA.
Katherine E Larrimore
Madhumati Mukherjee
Chase F Kempinski
Carina Barth
West Virginia University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ascorbic acid (AA) protects plants against abiotic stress. Previous studies suggested that this antioxidant is also involved in the control of flowering. To decipher how AA influences flowering time, we studied the four AA-deficient Arabidopsis (Arabidopsis thaliana) mutants vtc1-1, vtc2-1, vtc3-1, and vtc4-1 when grown under short and long days. These mutants flowered and senesced before the wild type irrespective of the photoperiod, a response that cannot simply be attributed to slightly elevated oxidative stress in the mutants. Transcript profiling of various flowering pathway genes revealed a correlation of altered mRNA levels and flowering time. For example, circadian clock and photoperiodic pathway genes were significantly higher in the vtc mutants than in the wild type under both short and long days, a result that is consistent with the early-flowering phenotype of the mutants. In contrast, when the AA content was artificially increased, flowering was delayed, which correlated with lower mRNA levels of circadian clock and photoperiodic pathway genes compared with plants treated with water. Similar observations were made for the autonomous pathway. Genetic analyses demonstrated that various photoperiodic and autonomous pathway mutants are epistatic to the vtc1-1 mutant. In conclusion, our transcript and genetic analyses suggest that AA acts upstream of the photoperiodic and autonomous pathways.

Indexed as

AntioxidantsArabidopsisArabidopsis ProteinsAscorbic AcidAscorbic Acid DeficiencyCellular SenescenceFlowersPhenotypePhosphoric Monoester HydrolasesPlant LeavesAntioxidantsArabidopsis ProteinsAscorbic AcidGDP-L-galactose phosphorylase, ArabidopsisPhosphoric Monoester HydrolasesVTC4 protein, Arabidopsis

Identifiers

PMID19028878
PMCPMC2633856
OpenAlexW2094952033

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.