Enterobacter

Not to be confused with Enterococcus.

Enterobacter
Enterobacter cloacae on trypticase soy agar
Scientific classification
Domain: Bacteria
Kingdom: Pseudomonadati
Phylum: Pseudomonadota
Class: Gammaproteobacteria
Order: Enterobacterales
Family: Enterobacteriaceae
Genus: Enterobacter
Hormaeche & Edwards 1960
Species

E. asburiae
E. bugandensis
E. cancerogenus
E. chengduensis
E. chinensis
E. chuandaensis
E. cloacae
E. dykesii
E. hormaechei
E. huaxiensis
E. kobei
E. ludwigii
E. mori
E. nematophilus
E. oligotrophicus
E. pasteurii
E. pseudoroggenkampii
E. quasihormaechei
E. quasimori
E. quasiroggenkampii
E. roggenkampii
E. rongchengensis
E. siamensis
E. sichuanensis
E. soli
E. vonholyi
E. wuhouensis
E. soli

Synonyms

Cloaca Castellani & Chalmers, 1919
Aerobacter Hormaeche & Edwards, 1958

Enterobacter is a genus of Gram-negative, facultatively anaerobic, rod-shaped, non-spore-forming bacteria in the family Enterobacteriaceae. Enterobacter spp. are found in soil, water, sewage, feces and gut environments. It is the type genus of the order Enterobacterales. Several strains of these bacteria are pathogenic and cause opportunistic infections in immunocompromised (usually hospitalized) hosts and in those who are on mechanical ventilation. The urinary and respiratory tracts are the most common sites of infection. The genus Enterobacter is a member of the coliform group of bacteria. It does not belong to the fecal coliforms (or thermotolerant coliforms) group of bacteria, unlike Escherichia coli, because it is incapable of growth at 44.5 °C in the presence of bile salts. Some of them show quorum sensing properties.

One clinically important species from this genus is E. cloacae.

In 2018, researchers detected five strains of Enterobacter bugandensis aboard the International Space Station (ISS) (none pathogenic to humans) and concluded that microbial populations on the ISS should be closely monitored to ensure a medically safe environment for astronauts.

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