Evidence map›Paper›PMID 11950987›Full record

ArticlePlant physiology2002

Pharmacological analysis of nod factor-induced calcium spiking in Medicago truncatula. Evidence for the requirement of type IIA calcium pumps and phosphoinositide signaling.

Eric M Engstrom, David W Ehrhardt, Raka M Mitra, Sharon R Long

Open access · bronzeAbstract read
In one paragraph

Article in Plant physiology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
7.0field-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

39 citing papers in PubMed, 90 citations in OpenAlex.

  1. Article
  2. Article
  3. Constitutive activation of a nuclear-localized calcium channel complex inProceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  4. Article
  5. Article
  6. Article
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  9. A role for the mevalonate pathway in early plant symbiotic signaling.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Nuclear calcium signaling in plants.Plant physiology · 2013
    Review
  17. Towards the Physics of Calcium Signalling in Plants.Plants (Basel, Switzerland) · 2013
    Review
  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

4 authors at 2 institutions in 1 country.

Eric M EngstromHoward Hughes Medical Institute, Department of Biological Sciences, Stanford University, Stanford, CA 94305-5020, USA.
David W Ehrhardt
Raka M Mitra
Sharon R Long
Howard Hughes Medical Institute · USStanford University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Bacterial Nod factors trigger a number of cellular responses in root hairs of compatible legume hosts, which include periodic, transient increases in cytosolic calcium levels, termed calcium spiking. We screened 13 pharmaceutical modulators of eukaryotic signal transduction for effects on Nod factor-induced calcium spiking. The purpose of this screening was 2-fold: to implicate enzymes required for Nod factor-induced calcium spiking in Medicago sp., and to identify inhibitors of calcium spiking suitable for correlating calcium spiking to other Nod factor responses to begin to understand the function of calcium spiking in Nod factor signal transduction. 2-Aminoethoxydiphenylborate, caffeine, cyclopiazonic acid (CPA), 2,5-di-(t-butyl)-1,4-hydroquinone, and U-73122 inhibit Nod factor-induced calcium spiking. CPA and U-73122 are inhibitors of plant type IIA calcium pumps and phospholipase C, respectively, and implicate the requirement for these enzymes in Nod factor-induced calcium spiking. CPA and U-73122 inhibit Nod factor-induced calcium spiking robustly at concentrations with no apparent toxicity to root hairs, making CPA and U-73122 suitable for testing whether calcium spiking is causal to subsequent Nod factor responses.

Indexed as

Boron CompoundsCaffeineCalciumCalcium Channel BlockersCalcium SignalingCalcium-Transporting ATPasesEstrenesHydroquinonesIndolesLipopolysaccharidesMedicagoMolecular StructurePhosphatidylinositolsPlant RootsPyrrolidinonesSignal Transduction1-(6-((3-methoxyestra-1,3,5(10)-trien-17-yl)amino)hexyl)-1H-pyrrole-2,5-dione2,5-di-tert-butylhydroquinone2-aminoethoxydiphenyl borateBoron CompoundsCaffeineCalciumCalcium Channel BlockersCalcium-Transporting ATPasescyclopiazonic acidEstrenesHydroquinonesIndolesLipopolysaccharidesNod factor, Rhizobium leguminosarumPhosphatidylinositolsPyrrolidinonesType C Phospholipases

Identifiers

PMID11950987
PMCPMC154266
OpenAlexW2113895729

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.