Raoultella terrigena | |
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Raoultella terrigena colonies after a 48-hour culture on sheep blood agar under aerobic conditions. | |
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Species: | R. terrigena
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Raoultella terrigena is a Gram-negative bacterial species of the genus Raoultella, previously classified in the genus Klebsiella. [1] It has primarily been isolated from soil and water samples, [2] but rarely from humans. Studies have estimated fewer than 1% of healthy people harbor this species. [3] This species has rarely been shown to cause disease [4] in humans despite expressing many of the virulence factors expressed by other Klebsiella species such as Klebsiella pneumoniae. [5]
Phylogenic comparisons between the 16s rRNA and rpoB genes of this and other Klebsiella species have suggested classification into a newer genus, Raoultella, [1] a reclassification that has been adopted. [6]
R. terrigena is considered a factor in melamine toxicity. In culture, R. terrigena was shown to convert melamine to cyanuric acid directly. Rats colonized by R. terrigena showed greater melamine-induced kidney damage compared to those not colonized. [7]
Raoultella terrigena | |
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Raoultella terrigena colonies after a 48-hour culture on sheep blood agar under aerobic conditions. | |
Scientific classification | |
Domain: | |
Phylum: | |
Class: | |
Order: | |
Family: | |
Genus: | |
Species: | R. terrigena
|
Raoultella terrigena is a Gram-negative bacterial species of the genus Raoultella, previously classified in the genus Klebsiella. [1] It has primarily been isolated from soil and water samples, [2] but rarely from humans. Studies have estimated fewer than 1% of healthy people harbor this species. [3] This species has rarely been shown to cause disease [4] in humans despite expressing many of the virulence factors expressed by other Klebsiella species such as Klebsiella pneumoniae. [5]
Phylogenic comparisons between the 16s rRNA and rpoB genes of this and other Klebsiella species have suggested classification into a newer genus, Raoultella, [1] a reclassification that has been adopted. [6]
R. terrigena is considered a factor in melamine toxicity. In culture, R. terrigena was shown to convert melamine to cyanuric acid directly. Rats colonized by R. terrigena showed greater melamine-induced kidney damage compared to those not colonized. [7]