Streptococcus halichoeri

Streptococcus halichoeri
Scientific classification Edit this classification
Domain: Bacteria
Kingdom: Bacillati
Phylum: Bacillota
Class: Bacilli
Order: Lactobacillales
Family: Streptococcaceae
Genus: Streptococcus
Species:
S. halichoeri
Binomial name
Streptococcus halichoeri
Lawson et al. 2004

Streptococcus halichoeri is a species of gram-positive, coccus-shaped bacterium from the order Lactobacillales. It was first described in 2004 after being isolated from gray seals (Halichoerus grypus) in the United Kingdom.

Description

Streptococcus halichoeri is a gram-positive, catalase negative bacterium that forms chains of spherical cells. S. halichoeri possesses group B Lancefield antigens.

Culture

S. halichoeri is readily cultured on routine laboratory media. The species is a facultative anaerobe. On sheep blood agar, colonies are white and non-hemolytic after 24 hours of incubation.

Human infections

Although initially identified in marine mammals, S. halichoeri has also been isolated from human clinical specimens.

References

  1. ↑ "Species: Streptococcus halichoeri". lpsn.dsmz.de. Retrieved 2026-10-11.
  2. 1 2 3 Lawson, Paul A.; Foster, Geoffrey; Falsen, Enevold; Davison, Nick; Collins, Matthew D. (2004). "Streptococcus halichoeri sp. nov., isolated from grey seals (Halichoerus grypus)". International Journal of Systematic and Evolutionary Microbiology. 54 (Pt 5): 1753–1756. doi:10.1099/ijs.0.63082-0. ISSN 1466-5026. PMID 15388740.
  3. ↑ "WoRMS - World Register of Marine Species - Streptococcus halichoeri Lawson, Foster, Falsen, Davison & Collins, 2004". www.marinespecies.org. Retrieved 2026-10-11.
  4. ↑ Shewmaker, P. L.; Whitney, A. M.; Humrighouse, B. W. (2016). "Phenotypic, Genotypic, and Antimicrobial Characteristics of Streptococcus halichoeri Isolates from Humans, Proposal To Rename Streptococcus halichoeri as Streptococcus halichoeri subsp. halichoeri, and Description of Streptococcus halichoeri subsp. hominis subsp. nov., a Bacterium Associated with Human Clinical Infections". Journal of Clinical Microbiology. 54 (3): 739–744. doi:10.1128/JCM.03214-15. ISSN 1098-660X. PMC 4767942. PMID 26763962.