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Citrobacter koseri, formerly known as Citrobacter diversus, is a Gram-negative non-spore forming, rod-shaped bacterium. It is a facultative anaerobe capable of aerobic respiration. It is motile via peritrichous flagella. [2] It is a member of the family of Enterobacteriaceae.
C. freundii is also a nitrogen-fixing bacteria, a process demonstrated in the living tissues of sassafras trees. This process provides evidence that they are partly responsible for reducing nitrate to nitrite in the environment. [8] C. freundii can also be found in the intestinal tracts of humans and other animals from diverse environmental ...
C. rodentium is a non-motile, facultative aerobe that lives in the intestinal tract of mice. The indole production test is negative, and it cannot grow on citrate or KCN.It is negative for arginine dihydrolase (meaning it cannot utilize arginine as a carbon and energy source) and is negative for H 2 S production.
Coliform bacteria include genera that originate in feces (e.g. Escherichia, Enterobacter, Klebsiella, Citrobacter). The fecal coliform assay is intended to be an indicator of fecal contamination; more specifically of E. coli which is an indicator microorganism for other pathogens that may be present in feces.
Citrobacter sedlakii was originally isolated from human stool and wounds and was suggested to be pathogenic in humans. [1] While some reports have described C. sedlakii as causing illness in humans, it is frequently found in stool and is not thought to be pathogenic in most cases. [ 2 ]
Enterobacteriaceae is a large family of Gram-negative bacteria.It includes over 30 genera and more than 100 species. Its classification above the level of family is still a subject of debate, but one classification places it in the order Enterobacterales of the class Gammaproteobacteria in the phylum Pseudomonadota.
Another powerful animal tranquilizer has made its way into street drugs, added to illicit fentanyl and other opioids to prolong a user’s high. A dangerous new animal sedative is making its way ...
The naming of hybrid animals depends on the sex and species of the parents. The father giving the first half of his species' name and the mother the second half of hers. (I.e. a pizzly bear has a polar bear father and grizzly bear mother whereas a grolar bear's parents would be reversed.)