Evidence map›Paper›PMID 30118379›Full record

ArticleGut microbes2019

Conventional culture methods with commercially available media unveil the presence of novel culturable bacteria.

Tamaki Ito, Tsuyoshi Sekizuka, Norimi Kishi, Akifumi Yamashita, Makoto Kuroda

Abstract read
In one paragraph

Article in Gut microbes, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers.

0numbers the graph read from it
0cells of the map it votes in
56citing 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

56 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Electrochemical Immunodetection ofSensors (Basel, Switzerland) · 2025
    Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Identification and Bioactivity Analysis of a NovelAntibiotics (Basel, Switzerland) · 2024
    Article
  12. Article
  13. Article
  14. Uncovering newMicrobiology spectrum · 2024
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. What Makes the Gut-Lung Axis Working? From the Perspective of Microbiota and Traditional Chinese Medicine.The Canadian journal of infectious diseases & medical microbiology = Journal canadien des maladies infectieuses et de la microbiologie medicale · 2024
    Review
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

5 authors.

Tamaki Itoa Laboratory of Genomics , Pathogen Genomics Center, National Institute of Infectious Diseases , Tokyo , Japan.
Tsuyoshi Sekizukaa Laboratory of Genomics , Pathogen Genomics Center, National Institute of Infectious Diseases , Tokyo , Japan.
Norimi Kishia Laboratory of Genomics , Pathogen Genomics Center, National Institute of Infectious Diseases , Tokyo , Japan.
Akifumi Yamashitaa Laboratory of Genomics , Pathogen Genomics Center, National Institute of Infectious Diseases , Tokyo , Japan.ORCID 0000-0002-6236-5975
Makoto Kurodaa Laboratory of Genomics , Pathogen Genomics Center, National Institute of Infectious Diseases , Tokyo , Japan.ORCID 0000-0002-0487-4405

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recent metagenomic analysis has revealed that our gut microbiota plays an important role in not only the maintenance of our health but also various diseases such as obesity, diabetes, inflammatory bowel disease, and allergy. However, most intestinal bacteria are considered 'unculturable' bacteria, and their functions remain unknown. Although culture-independent genomic approaches have enabled us to gain insight into their potential roles, culture-based approaches are still required to understand their characteristic features and phenotypes. To date, various culturing methods have been attempted to obtain these 'unculturable' bacteria, but most such methods require advanced techniques. Here, we have tried to isolate possible unculturable bacteria from a healthy Japanese individual by using commercially available media. A 16S rRNA (ribosomal RNA) gene metagenomic analysis revealed that each culture medium showed bacterial growth depending on its selective features and a possibility of the presence of novel bacterial species. Whole genome sequencing of these candidate strains suggested the isolation of 8 novel bacterial species classified in the Actinobacteria and Firmicutes phyla. Our approach indicates that a number of intestinal bacteria hitherto considered unculturable are potentially culturable and can be cultured on commercially available media. We have obtained novel gut bacteria from a healthy Japanese individual using a combination of comprehensive genomics and conventional culturing methods. We would expect that the discovery of such novel bacteria could illuminate pivotal roles for the gut microbiota in association with human health.

Indexed as

Bacteriological TechniquesBacteriaCulture MediaFecesGastrointestinal MicrobiomeGenome, BacterialHumansMetagenomicsPhylogenyRNA, Ribosomal, 16SSequence Analysis, DNACulture MediaRNA, Ribosomal, 16S16S rRNA gene metagenomic sequencingcommercially available mediaHuman gut microbiotanovel bacteriaunculturable bacteriawhole genome sequencing

Identifiers

PMID30118379
PMCPMC6363062

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.