Nine selected Dialister histaminiformans ovoid bodies appear in seven groupings: five isolated singles and two touching pairs.
Current-species morphology reconstruction Editorially reviewed

Representative Dialister histaminiformans ovoid forms, shown as nine bodies in seven single or paired groupings. This current-name reconstruction is non-diagnostic, makes no phenotype claim, and is not a micrograph.

WikiBiome / Microbiome MedicineAccepted-current-combination-, original-species-description-, and nomenclatural-reclassification-informed reconstruction; never keyed to the retired Allisonella route
Scientific media record1 verified identifier
Subject
Dialister histaminiformanstaxon · species
Review
Editorial review completeIdentifiers authority-verified · Accessibility validated · · dialister-histaminiformans|dialister-histaminiformans-morphology-v1.webp
Digital source
Trained-algorithmic mediaCreated with a trained generative algorithm and reviewed by WikiBiome for subject identity, scientific framing, identifiers, provenance, and accessibility.
License
CC BY-SA 4.0Created

Dialister histaminiformans is the current name for the species originally described as Allisonella histaminiformans. NCBI Taxonomy assigns the species NCBITaxon:209880, and LPSN treats A. histaminiformans as its validly published homotypic synonym and basionym.[1]NCBI Taxonomy — Dialister histaminiformans (NCBITaxon:209880)Author information pendingOpen reference 1 ↓[2]LPSN — Dialister histaminiformansAuthor information pendingOpen reference 2 ↓

The unsupported species epithet used by the retired WikiBiome page is not retained as a taxon or synonym.

Evidence map3 cited passagesInspect provenance +
01
Introduction

Dialister histaminiformans is the current name for the species originally described as Allisonella histaminiformans. NCBI Taxonomy assigns the species NCBITaxon:209880, and LPSN treats A. histaminiformans as its validly published homotypic synonym and basionym. The unsupported species epithet used by the retired WikiBiome page is not retained as a taxon or s

02
Nomenclatural History

Garner, Flint, and Russell described Allisonella histaminiformans from histidine-enrichment cultures of bovine rumen contents. The type strain is MR2, also deposited as ATCC BAA-610, CCUG 48567, and DSM 15230. Heng and colleagues transferred the species to Dialister in 2025; NCBI and LPSN now apply the combination Dialister histaminiformans. It belongs to th

03
Evidence Boundary

The original isolates were strictly anaerobic bacteria that used histidine as an energy source and produced histamine in the bovine-rumen experimental system. That evidence does not establish enrichment in human obesity, metabolic syndrome, mast-cell activation syndrome, or allergic disease, and it does not establish iron-dependent expansion or a therapeutic

Contents1. Nomenclatural History2. Evidence Boundary3. Literature Naming

Nomenclatural History#

Garner, Flint, and Russell described Allisonella histaminiformans from Histidine-enrichment cultures of bovine rumen contents. The type strain is MR2, also deposited as ATCC BAA-610, CCUG 48567, and DSM 15230.[3]Allisonella histaminiformans gen. nov., sp. nov.: a novel bacterium that produces histamine, utilizes histidine as its sole energy source, and could play a role in bovine and equine laminitisMatthew R Garner, Joseph F Flint, James B Russell · 2002Open reference 3 ↓

Heng and colleagues transferred the species to Dialister in 2025; NCBI and LPSN now apply the combination Dialister histaminiformans.[4]Description of Megasphaera jansseni sp. nov., a novel short- and medium-chain fatty acid-producing species isolated from faeces of a wild boar (Sus scrofa), and a taxonomic note on the family VeillonellaceaeY-C Heng, J K Y Lee, S Silvaraju et al. · 2025Open reference 4 ↓[1]NCBI Taxonomy — Dialister histaminiformans (NCBITaxon:209880)Author information pendingOpen reference 1 ↓[2]LPSN — Dialister histaminiformansAuthor information pendingOpen reference 2 ↓ It belongs to the family Veillonellaceae in the phylum Bacillota, not to Bacteroidetes.

Evidence Boundary#

The original isolates were strictly anaerobic bacteria that used histidine as an energy source and produced histamine in the bovine-rumen experimental system.[3]Allisonella histaminiformans gen. nov., sp. nov.: a novel bacterium that produces histamine, utilizes histidine as its sole energy source, and could play a role in bovine and equine laminitisMatthew R Garner, Joseph F Flint, James B Russell · 2002Open reference 3 ↓

That evidence does not establish enrichment in human obesity, metabolic syndrome, mast-cell activation syndrome, or allergic disease, and it does not establish iron-dependent expansion or a therapeutic target.

Human cohort results reported under the historical genus label Allisonella should remain attributed to that study label unless their sequence data support species-level assignment.

Literature Naming#

Older studies and databases may use Allisonella histaminiformans or the genus label Allisonella. Those names should be retained when accurately describing the terminology used by a source, while links and current taxonomic statements resolve to this record. Genus-level findings must not be silently rewritten as findings about D. histaminiformans.

Generated evidence record

References 4

Numbered by first appearance in the article, then reconciled with its declared source list.

  1. 1

    Author information pending. NCBI Taxonomy — Dialister histaminiformans (NCBITaxon:209880). NCBI Taxonomy.

  2. 2

    Author information pending. LPSN — Dialister histaminiformans. List of Prokaryotic names with Standing in Nomenclature.

  3. 3

    Matthew R Garner, Joseph F Flint, James B Russell (2002). Allisonella histaminiformans gen. nov., sp. nov.: a novel bacterium that produces histamine, utilizes histidine as its sole energy source, and could play a role in bovine and equine laminitis. Systematic and Applied Microbiology.

  4. 4

    Y-C Heng, J K Y Lee, S Silvaraju et al. (2025). Description of Megasphaera jansseni sp. nov., a novel short- and medium-chain fatty acid-producing species isolated from faeces of a wild boar (Sus scrofa), and a taxonomic note on the family Veillonellaceae. International Journal of Systematic and Evolutionary Microbiology.

Knowledge graph

Article network

Current recordDialister histaminiformansMicroorganisms
MechanismsHistidineMutually connected recordsDiseasesCardiovascular DiseaseDiseases relationship

Mentioned here 1

Pages linking here 2

Researcher discussion

Connect the evidence

Publicly readable discussion by ORCID-authenticated researchers. Questions, interpretation, methods, corrections, and new evidence stay attached to this record.

0 posts

No discussion yet. Start with a precise question or a source-backed observation.

Transparent record

Activity and accepted changes

Accepted researcher context, editorial status, public discussion, and upstream Git revisions are shown together. Pending, declined, and withdrawn proposals remain private.

2 events
  1. published revision

    Add reviewed Histidine concept coverage

    Karen Pendergrass · +1 −1

    Inspect exact Git diff ↗
  2. published revision

    Reconcile current taxonomic identities

    Karen Pendergrass · +43 −0

    Inspect exact Git diff ↗
Continue exploring

Every article is a doorway.

Generated from the WikiBiome Markdown vault and reconciled against its source registry.

4 references · 2 backlinks · 6 indexed topics