Evidence map›Paper›PMID 26253705›Full record

ArticleThe Plant cell2015

Flavonoids and Auxin Transport Inhibitors Rescue Symbiotic Nodulation in the Medicago truncatula Cytokinin Perception Mutant cre1.

Jason Liang Pin Ng, Samira Hassan, Thy T Truong, Charles H Hocart, Carole Laffont, Florian Frugier, Ulrike Mathesius

Open access · bronzeAbstract read
In one paragraph

Article in The Plant cell, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed, 1 pooled it
22.2field-weighted citation impact, top 1% 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

71 citing papers in PubMed, 1 synthesis or guideline pooled it, 165 citations in OpenAlex.

  1. Pooled it
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  18. Auxin regulation on crop: from mechanisms to opportunities in soybean breeding.Molecular breeding : new strategies in plant improvement · 2023
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11 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

7 authors at 2 institutions in 2 countries.

Jason Liang Pin NgDivision of Plant Science, Research School of Biology, Australian National University, Canberra ACT 2601, Australia.
Samira HassanDivision of Plant Science, Research School of Biology, Australian National University, Canberra ACT 2601, Australia.ORCID http://orcid.org/0000-0001-8752-5085
Thy T TruongMass Spectrometry Facility, Research School of Biology, Australian National University, Canberra ACT 2601, Australia.ORCID http://orcid.org/0000-0002-4888-7478
Charles H HocartMass Spectrometry Facility, Research School of Biology, Australian National University, Canberra ACT 2601, Australia.ORCID http://orcid.org/0000-0002-6167-2295
Carole LaffontInstitute of Plant Sciences-Paris Saclay University (IPS2), UMR 9213/UMR 1403, CNRS/INRA/Université Paris-Sud/Université Paris-Diderot/Université d'Evry, 91405 Orsay, France.
Florian FrugierInstitute of Plant Sciences-Paris Saclay University (IPS2), UMR 9213/UMR 1403, CNRS/INRA/Université Paris-Sud/Université Paris-Diderot/Université d'Evry, 91405 Orsay, France.
Ulrike MathesiusDivision of Plant Science, Research School of Biology, Australian National University, Canberra ACT 2601, Australia ulrike.mathesius@anu.edu.au.ORCID http://orcid.org/0000-0002-3557-0105
Australian National University · AUUniversité Paris-Sud · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Initiation of symbiotic nodules in legumes requires cytokinin signaling, but its mechanism of action is largely unknown. Here, we tested whether the failure to initiate nodules in the Medicago truncatula cytokinin perception mutant cre1 (cytokinin response1) is due to its altered ability to regulate auxin transport, auxin accumulation, and induction of flavonoids. We found that in the cre1 mutant, symbiotic rhizobia cannot locally alter acro- and basipetal auxin transport during nodule initiation and that these mutants show reduced auxin (indole-3-acetic acid) accumulation and auxin responses compared with the wild type. Quantification of flavonoids, which can act as endogenous auxin transport inhibitors, showed a deficiency in the induction of free naringenin, isoliquiritigenin, quercetin, and hesperetin in cre1 roots compared with wild-type roots 24 h after inoculation with rhizobia. Coinoculation of roots with rhizobia and the flavonoids naringenin, isoliquiritigenin, and kaempferol, or with the synthetic auxin transport inhibitor 2,3,5,-triiodobenzoic acid, rescued nodulation efficiency in cre1 mutants and allowed auxin transport control in response to rhizobia. Our results suggest that CRE1-dependent cytokinin signaling leads to nodule initiation through the regulation of flavonoid accumulation required for local alteration of polar auxin transport and subsequent auxin accumulation in cortical cells during the early stages of nodulation.

Indexed as

MutationBiological TransportChalconesCytokininsFlavanonesFlavonoidsHost-Pathogen InteractionsIndoleacetic AcidsKaempferolsMedicago truncatulaMicroscopy, FluorescencePlant Growth RegulatorsPlant ProteinsPlant Root NodulationPlant RootsPlants, Genetically ModifiedChalconesCytokininsFlavanonesFlavonoidsIndoleacetic AcidsisoliquiritigeninkaempferolKaempferolsnaringeninPlant Growth RegulatorsPlant ProteinsTriiodobenzoic Acids

Identifiers

PMID26253705
PMCPMC4568502
OpenAlexW2111923470

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.