Glaesserella

Glaesserella
Scientific classification Edit this classification
Domain: Bacteria
Kingdom: Pseudomonadati
Phylum: Pseudomonadota
Class: Gammaproteobacteria
Order: Pasteurellales
Family: Pasteurellaceae
Genus: Glaesserella
Dickerman et al. 2020[1]
Type species
Glaesserella parasuis
(Biberstein and White 1969) Dickerman et al. 2020
Species[2]

Glaesserella australis
Glaesserella parasuis

Glaesserella is a genus of Gram-negative bacteria in the family Pasteurellaceae. Members of this genus are primarily associated with pigs and include pathogens of veterinary importance.

Taxonomy

The genus Glaesserella was established in 2020 following phylogenomic analyses that reclassified species previously placed in the genus Haemophilus. The type species is Glaesserella parasuis, formerly known as Haemophilus parasuis.[1]

Etymology

The name Glaesserella honors Karl Glässer, a German veterinarian who first described Glässer’s disease in pigs in 1906. The suffix "-ella" is a diminutive commonly used in bacterial genus names.[2]

Species

Recognized species within the genus include:

Clinical significance

Glaesserella parasuis is the causative agent of Glässer’s disease, a condition in pigs characterized by polyserositis, arthritis, meningitis, and pneumonia. It mainly affects weaned piglets and can result in significant economic losses in swine production.[3]

Identification

Species of Glaesserella can be identified through biochemical testing and molecular methods such as polymerase chain reaction (PCR) assays and 16S rRNA gene sequencing.[4]

References

  1. ^ a b Dickerman, A; Bandara, A.B.; Inzana, T.J. (2020). "Phylogenomic analysis of Haemophilus parasuis and proposed reclassification to Glaesserella parasuis, gen. nov., comb. nov". International Journal of Systematic and Evolutionary Microbiology. 70 (1): 180–186. doi:10.1099/ijsem.0.003730. PMID 31592757.
  2. ^ a b "Glaesserella". List of Prokaryotic names with Standing in Nomenclature (LPSN). DSMZ. Retrieved 2025-06-06.
  3. ^ Olvera, A; Segalés, J; Aragón, V (November 2007). "Update on the diagnosis of Haemophilus parasuis infection in pigs and novel genotyping methods". Veterinary Journal. 174 (3): 522–529. doi:10.1016/j.tvjl.2006.10.017. PMID 17175186.
  4. ^ Howell, K. J.; Peters, S. E.; Wang, J.; Hernandez-Garcia, J.; Weinert, L. A.; Luan, S. L.; Chaudhuri, R. R.; Angen, Ø.; Aragon, V.; Williamson, S. M.; Parkhill, J.; Langford, P. R.; Rycroft, A. N.; Wren, B. W.; Maskell, D. J.; Tucker, A. W. (2015). "Development of a Multiplex PCR Assay for Rapid Molecular Serotyping of Haemophilus parasuis". Journal of Clinical Microbiology. 53 (12): 3812–3821. doi:10.1128/JCM.01991-15. PMC 4652097. PMID 26424843.

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