Dialister histaminiformans

Dialister histaminiformans
Scientific classification Edit this classification
Domain: Bacteria
Kingdom: Bacillati
Phylum: Bacillota
Class: Negativicutes
Order: Veillonellales
Family: Veillonellaceae
Genus: Dialister
Species:
D. histaminiformans
Binomial name
Dialister histaminiformans
(Garner et al. 2003) Heng et al. 2025
Type strain
MR2 (= ATCC BAA-610 = CCUG 48567 = DSM 15230)
Synonyms
  • Allisonella histaminiformans Garner et al. 2003

Dialister histaminiformans is a Gram-negative, facultatively anaerobic species of bacterium in the family Veillonellaceae. It produces histamine through the decarboxylation of histidine, which serves as its principal energy-yielding pathway.[1]

Characteristics

Cells are ovoid, non-motile, and non-spore-forming, and occur in pairs or chains. The species was originally isolated from the rumen of grain-fed cattle, with additional isolates recovered from bovine feces and the cecum of a horse.[1]

Taxonomy

The species was originally described as Allisonella histaminiformans. It was the type and only species of the genus Allisonella.[1][2]

In 2025, the species was transferred to Dialister as Dialister histaminiformans.[3] This transfer resulted in Allisonella being treated as a later heterotypic synonym of Dialister.[2]

References

  1. 1 2 3 Garner, M. R.; Flint, J. F.; Russell, J. B. (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. 25 (4): 498–506. doi:10.1078/07232020260517625. PMID 12583709.
  2. 1 2 "Species: Dialister histaminiformans". List of Prokaryotic names with Standing in Nomenclature. Retrieved 23 July 2026.
  3. ↑ Heng, Y. C.; Lee, J. K. Y.; Silvaraju, S.; Kittelmann, S. (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. 75. doi:10.1099/ijsem.0.006937.