Evidence map›Paper›PMID 22706284›Full record

ArticleThe Plant cell2012

The recent evolution of a symbiotic ion channel in the legume family altered ion conductance and improved functionality in calcium signaling.

Muthusubramanian Venkateshwaran, Ana Cosme, Lu Han, Mari Banba, Kenneth A Satyshur, Enrico Schleiff, Martin Parniske, Haruko Imaizumi-Anraku, Jean-Michel Ané

Open access · bronzeAbstract read
In one paragraph

Article in The Plant cell, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
9.7field-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

31 citing papers in PubMed, 63 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Constitutive activation of a nuclear-localized calcium channel complex inProceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  6. Article
  7. Review
  8. Frontiers in plant science · 2022
    Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Article
  14. The Ectomycorrhizal FungusThe Plant cell · 2019
    Article
  15. CaNature communications · 2019
    Article
  16. Article
  17. The Hydrophobin HYTLO1 Secreted by the Biocontrol FungusInternational journal of molecular sciences · 2018
    Article
  18. Article
  19. 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

9 authors at 5 institutions in 3 countries.

Muthusubramanian VenkateshwaranDepartment of Agronomy, University of Wisconsin, Madison, Wisconsin 53706, USA.
Ana Cosme
Lu Han
Mari Banba
Kenneth A Satyshur
Enrico Schleiff
Martin Parniske
Haruko Imaizumi-Anraku
Jean-Michel Ané
Institute of Agrobiological Sciences · JPLudwig-Maximilians-Universität München · DEUniversity of Wisconsin–Madison · USGoethe University Frankfurt · DEUniversity of Wisconsin Carbone Cancer Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Arbuscular mycorrhiza and the rhizobia-legume symbiosis are two major root endosymbioses that facilitate plant nutrition. In Lotus japonicus, two symbiotic cation channels, CASTOR and POLLUX, are indispensable for the induction of nuclear calcium spiking, one of the earliest plant responses to symbiotic partner recognition. During recent evolution, a single amino acid substitution in DOES NOT MAKE INFECTIONS1 (DMI1), the POLLUX putative ortholog in the closely related Medicago truncatula, rendered the channel solo sufficient for symbiosis; castor, pollux, and castor pollux double mutants of L. japonicus were rescued by DMI1 alone, while both Lj-CASTOR and Lj-POLLUX were required for rescuing a dmi1 mutant of M. truncatula. Experimental replacement of the critical serine by an alanine in the selectivity filter of Lj-POLLUX conferred a symbiotic performance indistinguishable from DMI1. Electrophysiological characterization of DMI1 and Lj-CASTOR (wild-type and mutants) by planar lipid bilayer experiments combined with calcium imaging in Human Embryonic Kidney-293 cells expressing DMI1 (the wild type and mutants) suggest that the serine-to-alanine substitution conferred reduced conductance with a long open state to DMI1 and improved its efficiency in mediating calcium oscillations. We propose that this single amino acid replacement in the selectivity filter made DMI1 solo sufficient for symbiosis, thus explaining the selective advantage of this allele at the mechanistic level.

Indexed as

Evolution, MolecularAlanineAmino Acid SubstitutionBiological EvolutionCalcium SignalingCell LineElectrophysiological PhenomenaFabaceaeGenetic Complementation TestHumansIon ChannelsLotusMedicago truncatulaMolecular Sequence DataMutationMycorrhizaeAlanineIon ChannelsPlant ProteinsPotassiumSerine

Identifiers

PMID22706284
PMCPMC3406897
OpenAlexW2161392949

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.