Evidence map›Paper›PMID 21744141›Full record

ArticleMycorrhiza2012

The exudate from an arbuscular mycorrhizal fungus induces nitric oxide accumulation in Medicago truncatula roots.

Cristina Calcagno, Mara Novero, Andrea Genre, Paola Bonfante, Luisa Lanfranco

Open access · greenAbstract read
PubMed Publisher
In one paragraph

Article in Mycorrhiza, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
5.7field-weighted citation impact, top 5% 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

25 citing papers in PubMed, 70 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Nitric oxide and AMF-mediated regulation of soil enzymes activities, cysteine-HBiometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2024
    Article
  5. Review
  6. Roles ofMicroorganisms · 2022
    Review
  7. Review
  8. Article
  9. Review
  10. Regulators of nitric oxide signaling triggered by host perception in a plant pathogen.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. 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

5 authors at 1 institution in 1 country.

Cristina CalcagnoDipartimento di Biologia Vegetale, Università degli Studi di Torino, Viale Mattioli 25, 10125 Turin, Italy.
Mara Novero
Andrea Genre
Paola Bonfante
Luisa Lanfranco
University of Turin · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Nitric oxide (NO) is a signaling molecule involved in plant responses to abiotic and biotic stresses. While there is evidence for NO accumulation during legume nodulation, almost no information exists for arbuscular mycorrhizas (AM). Here, we investigated the occurrence of NO in the early stages of Medicago truncatula-Gigaspora margarita interaction, focusing on the plant response to fungal diffusible molecules. NO was visualized in root organ cultures and seedlings by confocal microscopy using the specific probe 4,5-diaminofluorescein diacetate. Five-minute treatment with the fungal exudate was sufficient to induce significant NO accumulation. The specificity of this response to AM fungi was confirmed by the lack of response in the AM nonhost Arabidopsis thaliana and by analyzing mutants impaired in mycorrhizal capacities. NO buildup resulted to be partially dependent on DMI1, DMI2, and DMI3 functions within the so-called common symbiotic signaling pathway which is shared between AM and nodulation. Significantly, NO accumulation was not induced by the application of purified Nod factor, while lipopolysaccharides from Escherichia coli, known to elicit defense-related NO production in plants, induced a significantly different response pattern. A slight upregulation of a nitrate reductase (NR) gene and the reduction of NO accumulation when the enzyme is inhibited by tungstate suggest NR as a possible source of NO. Genetic and cellular evidence, therefore, suggests that NO accumulation is a novel component in the signaling pathway that leads to AM symbiosis.

Indexed as

ArabidopsisGlomeromycotaMedicago truncatulaMycorrhizaeNitric OxidePlant RootsSignal TransductionNitric Oxide

Identifiers

PMID21744141
OpenAlexW1985329485

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.