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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.
The species C. amalonaticus, C. koseri, and C. freundii can use citrate as a sole carbon source. Citrobacter species are differentiated by their ability to convert tryptophan to indole (C. koseri is the only citrobacter to be commonly indole-positive), ferment lactose (C. koseri is a lactose fermentor), and use malonate.
C. freundii is a soil-dwelling microorganism, but can also be found in water, sewage, food, and the intestinal tracts of animals and humans. The genus Citrobacter was discovered in 1932 by Werkman and Gillen. Cultures of C. freundii were isolated and identified in the same year from soil extracts.
Typical genera include: [3] Citrobacter are peritrichous facultative anaerobic bacilli between 0.6–6 μm in length. [4] Citrobacter species inhabit intestinal flora without causing harm, but can lead to urinary tract infections, bacteremia, brain abscesses, pneumonia, intra abdominal sepsis, meningitis, and joint infections if they are given the opportunity. [4]
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.
Plenty of critters can cause harm to humans - past just startling you in your backyard. According to World Atlas , these are the deadliest animals in Oklahoma: Brown recluse spider
Casu Marzu is typically produced at the end of June when local sheep milk begins to change as the animals enter their reproductive time and the grass dries from the summer heat. The coastal town ...
The 25 Most Dangerous Animals In The World, List 25; The Most Dangerous Animals in the World, Animal Danger; Top 10 Most Dangerous Animals In The World, Conservation Institute; Schistosomiasis: Still a Cause of Significant Morbidity and Mortality, National Center for Biotechnology Information, U.S. National Library of Medicine