Evidence map›Paper›PMID 22746823›Full record

ArticleMolecular plant-microbe interactions : MPMI2012

Rhizobial plasmids that cause impaired symbiotic nitrogen fixation and enhanced host invasion.

Matthew B Crook, Daniel P Lindsay, Matthew B Biggs, Joshua S Bentley, Jared C Price, Spencer C Clement, Mark J Clement, Sharon R Long, Joel S Griffitts

Open access · greenAbstract read
In one paragraph

Article in Molecular plant-microbe interactions : MPMI, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

27 citing papers in PubMed, 64 citations in OpenAlex.

  1. Comparative genomic analysis ofApplied and environmental microbiology · 2026
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  5. Legumes Regulate Symbiosis with Rhizobia via Their Innate Immune System.International journal of molecular sciences · 2023
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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

9 authors at 2 institutions in 1 country.

Matthew B CrookDepartment of Microbiology and Molecular Biology, Brigham Young University, Provo, UT, USA.
Daniel P Lindsay
Matthew B Biggs
Joshua S Bentley
Jared C Price
Spencer C Clement
Mark J Clement
Sharon R Long
Joel S Griffitts
Brigham Young University · USMedical Protective · US

Funding

Control of Symbiotic Gene Expression in Sinorhizobium melilotiR01GM093628 · NIGMS · STANFORD UNIVERSITY · PI LONG, SHARON R · 2010 to 2017
$7.0M
NIGMS NIH HHS R01 GM093628NIGMS NIH HHS R01GM093628
6 · The paper itself

Abstract

The genetic rules that dictate legume-rhizobium compatibility have been investigated for decades, but the causes of incompatibility occurring at late stages of the nodulation process are not well understood. An evaluation of naturally diverse legume (genus Medicago) and rhizobium (genus Sinorhizobium) isolates has revealed numerous instances in which Sinorhizobium strains induce and occupy nodules that are only minimally beneficial to certain Medicago hosts. Using these ineffective strain-host pairs, we identified gain-of-compatibility (GOC) rhizobial variants. We show that GOC variants arise by loss of specific large accessory plasmids, which we call HR plasmids due to their effect on symbiotic host range. Transfer of HR plasmids to a symbiotically effective rhizobium strain can convert it to incompatibility, indicating that HR plasmids can act autonomously in diverse strain backgrounds. We provide evidence that HR plasmids may encode machinery for their horizontal transfer. On hosts in which HR plasmids impair N fixation, the plasmids also enhance competitiveness for nodule occupancy, showing that naturally occurring, transferrable accessory genes can convert beneficial rhizobia to a more exploitative lifestyle. This observation raises important questions about agricultural management, the ecological stability of mutualisms, and the genetic factors that distinguish beneficial symbionts from parasites.

Indexed as

Gene Transfer, HorizontalMedicagoMolecular Sequence DataNitrogen FixationPhenotypePlasmidsRhizobiumRoot Nodules, PlantSinorhizobiumSymbiosis

Identifiers

PMID22746823
PMCPMC4406224
OpenAlexW2098954713

What OpenQuestion holds

Textmetadata
LicenceTDM
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.