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Dysgonomonas gadei

Description: Dysgonomas gadei is a bacteria belonging to the family Porphyromonas. It is a bacteroides, a subgroup of the flavobacterium-bacteroides subphylum. It is found in infections of the human gall bladder. The bacteria are coccobacillus- shaped and gram-negative. They are non-motile and facultatively anaerobic, meaning it fixes oxygen when oxygen is present, but it is also able to resort to fermentation if oxygen is not present. When performing fermentation, D. gadei ferment glucose, which produces acid but no gas. The bacteria are capable of growing under microaerophilic and anaerobic conditions.

The bacteria have been observed to grow slowly on blood agar. They are alpha hemolytic and produce an aromatic odor. The bacteria are catalase-positive and oxidase-negative. The bacteria are also resistant to ox bile.

D. galdei could be classified as an opportunistic pathogen, as evidenced by it presence in human gall bladder infections. Otherwise, the bacteria's habitat is unknown.

References: Hofstad, Tor, Ingar Olsen, Emenike R. Eribe, Enevold Falsen, Matthew D. Collins, and Paul A. Lawson. "Dysgonomonas Gen. Nov. to Accommodate Dysgonomonas Gadei Sp. Nov., an Organism Isolated from a Human Gall Bladder, and Dysgonomonas Capnocytophagoides (formerly CDC Group DF-3)." International Journal of Systematic and Evolutionary Microbiology Vol. 50 (2000): 2189-195.