Evidence map›Paper›PMID 32503911›Full record

ArticleApplied and environmental microbiology2020

Nitrogen Fixation in Pozol, a Traditional Fermented Beverage.

Jocelin Rizo, Marco A Rogel, Daniel Guillén, Carmen Wacher, Esperanza Martinez-Romero, Sergio Encarnación, Sergio Sánchez, Romina Rodríguez-Sanoja

Abstract read
In one paragraph

Article in Applied and environmental microbiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–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

6 citing papers in PubMed.

  1. Probiotics and Fermented Foods in Human Nutrition.Molecules (Basel, Switzerland) · 2026
    Review
  2. Review
  3. Article
  4. Review
  5. Diversity ofFrontiers in microbiology · 2021
    Article
  6. 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

8 authors.

Jocelin RizoInstituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico.
Marco A RogelCentro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, Mexico.
Daniel GuillénInstituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico.
Carmen WacherFacultad de Química, Universidad Nacional Autónoma de México, Mexico City, Mexico.
Esperanza Martinez-RomeroCentro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, Mexico.
Sergio EncarnaciónCentro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, Mexico.
Sergio SánchezInstituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico.
Romina Rodríguez-SanojaInstituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico romina@biomedicas.unam.mx.ORCID 0000-0002-2722-5432

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Traditional fermentations have been widely studied from the microbiological point of view, but little is known from the functional perspective. In this work, nitrogen fixation by free-living nitrogen-fixing bacteria was conclusively demonstrated in pozol, a traditional Mayan beverage prepared with nixtamalized and fermented maize dough. Three aspects of nitrogen fixation were investigated to ensure that fixation actually happens in the dough: (i) the detection of acetylene reduction activity directly in the substrate, (ii) the presence of potential diazotrophs, and (iii) an

Indexed as

Nitrogen FixationAcetyleneBacteriaEnterobacterEnterobacteriaceaeFermented FoodsKlebsiellaMexicoOxidation-ReductionOxidoreductasesRNA, BacterialRNA, Ribosomal, 16SAcetylenenitrogenase reductaseOxidoreductasesRNA, BacterialRNA, Ribosomal, 16Sdiazotrophsfood fermentationnitrogen fixationpozoltraditional fermentations

Identifiers

PMID32503911
PMCPMC7414965

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.