Evidence map›Paper›PMID 27864511›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2016

Root nodule symbiosis in Lotus japonicus drives the establishment of distinctive rhizosphere, root, and nodule bacterial communities.

Rafal Zgadzaj, Ruben Garrido-Oter, Dorthe Bodker Jensen, Anna Koprivova, Paul Schulze-Lefert, Simona Radutoiu

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 145 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
145citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

145 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  15. Microbial drivers of root plasticity.The New phytologist · 2025
    Review
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85 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

6 authors.

Rafal ZgadzajDepartment of Plant Microbe Interactions, Max Planck Institute for Plant Breeding Research, 50829 Cologne, Germany.
Ruben Garrido-OterDepartment of Plant Microbe Interactions, Max Planck Institute for Plant Breeding Research, 50829 Cologne, Germany.
Dorthe Bodker JensenDepartment of Molecular Biology and Genetics, Faculty of Science and Technology, Aarhus University, 8000 C Aarhus, Denmark.
Anna KoprivovaCluster of Excellence on Plant Sciences, Heinrich Heine University Duesseldorf, 40225 Duesseldorf, Germany.
Paul Schulze-LefertDepartment of Plant Microbe Interactions, Max Planck Institute for Plant Breeding Research, 50829 Cologne, Germany; schlef@mpipz.mpg.de radutoiu@mbg.au.dk.
Simona RadutoiuDepartment of Molecular Biology and Genetics, Faculty of Science and Technology, Aarhus University, 8000 C Aarhus, Denmark; schlef@mpipz.mpg.de radutoiu@mbg.au.dk.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lotus japonicus has been used for decades as a model legume to study the establishment of binary symbiotic relationships with nitrogen-fixing rhizobia that trigger root nodule organogenesis for bacterial accommodation. Using community profiling of 16S rRNA gene amplicons, we reveal that in Lotus, distinctive nodule- and root-inhabiting communities are established by parallel, rather than consecutive, selection of bacteria from the rhizosphere and root compartments. Comparative analyses of wild-type (WT) and symbiotic mutants in Nod factor receptor5 (nfr5), Nodule inception (nin) and Lotus histidine kinase1 (lhk1) genes identified a previously unsuspected role of the nodulation pathway in the establishment of different bacterial assemblages in the root and rhizosphere. We found that the loss of nitrogen-fixing symbiosis dramatically alters community structure in the latter two compartments, affecting at least 14 bacterial orders. The differential plant growth phenotypes seen between WT and the symbiotic mutants in nonsupplemented soil were retained under nitrogen-supplemented conditions that blocked the formation of functional nodules in WT, whereas the symbiosis-impaired mutants maintain an altered community structure in the nitrogen-supplemented soil. This finding provides strong evidence that the root-associated community shift in the symbiotic mutants is a direct consequence of the disabled symbiosis pathway rather than an indirect effect resulting from abolished symbiotic nitrogen fixation. Our findings imply a role of the legume host in selecting a broad taxonomic range of root-associated bacteria that, in addition to rhizobia, likely contribute to plant growth and ecological performance.

Indexed as

Microbial ConsortiaNitrogen FixationSoil MicrobiologyBrassicaceaeFertilizersLotusRoot Nodules, PlantSymbiosisFertilizers16SLotus japonicusmicrobiotanitrogen fixationsymbiosis

Identifiers

PMID27864511
PMCPMC5150415

What OpenQuestion holds

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Registered trials

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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.