Kingella
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''Kingella'' is a genus of
bacteria Bacteria (; : bacterium) are ubiquitous, mostly free-living organisms often consisting of one Cell (biology), biological cell. They constitute a large domain (biology), domain of Prokaryote, prokaryotic microorganisms. Typically a few micr ...
of the family
Neisseriaceae The Neisseriaceae are a family of ''Pseudomonadota'', within the ''Neisseriales'' order of ''Betaproteobacteria''. While many organisms in the family are mammalian commensals or part of the normal flora, the genus ''Neisseria'' includes two impor ...
. It belongs to the HACEK group of fastidious
Gram-negative Gram-negative bacteria are bacteria that, unlike gram-positive bacteria, do not retain the crystal violet stain used in the Gram staining method of bacterial differentiation. Their defining characteristic is that their cell envelope consists ...
bacteria that tend to cause
endocarditis Endocarditis is an inflammation of the inner layer of the heart, the endocardium. It usually involves the heart valves. Other structures that may be involved include the interventricular septum, the chordae tendineae, the mural endocardium, o ...
. ''
Kingella kingae ''Kingella kingae'' is a species of Gram-negative facultative anaerobic β-hemolytic coccobacilli. First isolated in 1960 by Elizabeth O. King, it was not recognized as a significant cause of infection in young children until the 1990s, when c ...
'' is its
type species In International_Code_of_Zoological_Nomenclature, zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the spe ...
.


Species

As of 2021, five species belong to the genus: *''
Kingella denitrificans ''Kingella'' is a genus of bacteria of the family Neisseriaceae. It belongs to the HACEK group of fastidious Gram-negative bacteria that tend to cause endocarditis. ''Kingella kingae'' is its type species. Species As of 2021, five species bel ...
'' Snell & Lapage 1976 *''
Kingella kingae ''Kingella kingae'' is a species of Gram-negative facultative anaerobic β-hemolytic coccobacilli. First isolated in 1960 by Elizabeth O. King, it was not recognized as a significant cause of infection in young children until the 1990s, when c ...
'' (Henriksen & Bøvre 1968) Henriksen & Bøvre 1976 *'' Kingella negevensis'' El Houmami ''et al''. 2017 *'' Kingella oralis'' corrig. Dewhirst ''et al''. 1993 *'' Kingella potus'' Lawson ''et al''. 2005


References

Neisseriales Bacteria genera {{Betaproteobacteria-stub