Evidence map›Paper›PMID 30086128›Full record

ArticlePLoS biology2018

Nitrogen fixation in a landrace of maize is supported by a mucilage-associated diazotrophic microbiota.

Allen Van Deynze, Pablo Zamora, Pierre-Marc Delaux, Cristobal Heitmann, Dhileepkumar Jayaraman, Shanmugam Rajasekar, Danielle Graham, Junko Maeda, Donald Gibson, Kevin D Schwartz and 11 more

Open access · goldAbstract read
In one paragraph

Article in PLoS biology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 122 papers.

0numbers the graph read from it
0cells of the map it votes in
122citing papers in PubMed
48.7field-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

122 citing papers in PubMed, 381 citations in OpenAlex.

  1. Article
  2. Genetic determinants of aerial root morphology in Sierra Mixe-derived maize.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026
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62 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

21 authors at 5 institutions in 2 countries.

Allen Van DeynzeDepartment of Plant Sciences, University of California, Davis, California, United States of America.
Pablo ZamoraDepartment of Plant Sciences, University of California, Davis, California, United States of America.
Pierre-Marc DelauxDepartment of Agronomy, University of Wisconsin, Madison, Wisconsin, United States of America.
Cristobal HeitmannDepartment of Plant Sciences, University of California, Davis, California, United States of America.
Dhileepkumar JayaramanDepartment of Agronomy, University of Wisconsin, Madison, Wisconsin, United States of America.
Shanmugam RajasekarDepartment of Agronomy, University of Wisconsin, Madison, Wisconsin, United States of America.
Danielle GrahamDepartment of Agronomy, University of Wisconsin, Madison, Wisconsin, United States of America.
Junko MaedaDepartment of Bacteriology, University of Wisconsin, Madison, Wisconsin, United States of America.
Donald GibsonDepartment of Plant Sciences, University of California, Davis, California, United States of America.
Kevin D SchwartzDepartment of Plant Sciences, University of California, Davis, California, United States of America.
Alison M BerryDepartment of Plant Sciences, University of California, Davis, California, United States of America.
Srijak BhatnagarGenome Center, University of California, Davis, California, United States of America.
Guillaume JospinGenome Center, University of California, Davis, California, United States of America.
Aaron DarlingGenome Center, University of California, Davis, California, United States of America.
Richard JeannotteDepartment of Population Health and Reproduction, University of California, Davis, California, United States of America.
Javier LopezInstituto Tecnológico del Valle de Oaxaca, Oaxaca, Mexico.
Bart C WeimerDepartment of Population Health and Reproduction, University of California, Davis, California, United States of America.
Jonathan A EisenGenome Center, University of California, Davis, California, United States of America.
Howard-Yana ShapiroDepartment of Plant Sciences, University of California, Davis, California, United States of America.
Jean-Michel AnéDepartment of Agronomy, University of Wisconsin, Madison, Wisconsin, United States of America.
Alan B BennettDepartment of Plant Sciences, University of California, Davis, California, United States of America.ORCID 0000-0002-3684-4307
Plant (United States) · USUniversity of California, Davis · USUniversity of Wisconsin–Madison · USInstituto Tecnológico de Oaxaca · MXMars (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Plants are associated with a complex microbiota that contributes to nutrient acquisition, plant growth, and plant defense. Nitrogen-fixing microbial associations are efficient and well characterized in legumes but are limited in cereals, including maize. We studied an indigenous landrace of maize grown in nitrogen-depleted soils in the Sierra Mixe region of Oaxaca, Mexico. This landrace is characterized by the extensive development of aerial roots that secrete a carbohydrate-rich mucilage. Analysis of the mucilage microbiota indicated that it was enriched in taxa for which many known species are diazotrophic, was enriched for homologs of genes encoding nitrogenase subunits, and harbored active nitrogenase activity as assessed by acetylene reduction and 15N2 incorporation assays. Field experiments in Sierra Mixe using 15N natural abundance or 15N-enrichment assessments over 5 years indicated that atmospheric nitrogen fixation contributed 29%-82% of the nitrogen nutrition of Sierra Mixe maize.

Indexed as

MexicoMicrobiotaNitrogenNitrogen FixationPhylogenyPlant DevelopmentPlant MucilagePlant RootsPolysaccharidesSoilSoil MicrobiologyZea maysNitrogenPlant MucilagePolysaccharidesSoil

Identifiers

PMID30086128
PMCPMC6080747
OpenAlexW2886288140

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.