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C. canimorsus displays enhanced growth in high concentrations of carbon dioxide, so culturing the bacteria in candle extinction jars or carbon dioxide incubators is necessary. [4] To diagnose this bacillus, certain reactions may be tested. The bacterium should test positive for catalase and oxidase, arginine dihydrolase, maltose, and lactose.
C. canimorsus and C. cynodegmi are commonly transmitted by dog bites and known to cause sepsis, potentially complicated by thrombotic thrombocytopenic purpura and hemolytic uremic syndrome, in immunocompromised patients. [8] Other complications from infection can include heart attack, kidney failure, gangrene and amputation of limbs. [9]
[18] [28] In cultures of Bacillus, Butyrivibrio, and Clostridium, a decrease in peptidoglycan thickness during growth coincides with an increase in the number of cells that stain gram-negative. [28] In addition, in all bacteria stained using the Gram stain, the age of the culture may influence the results of the stain.
The nitrate reductase test is a test to differentiate between bacteria based on their ability or inability to reduce nitrate (NO 3 −) to nitrite (NO 2 −) using anaerobic respiration. Procedure [ edit ]
The test uses disks impregnated with a reagent such as N,N,N′,N′-tetramethyl-p-phenylenediamine, TMPD (or N,N-dimethyl-p-phenylenediamine, DMPD, which is also a redox indicator). The reagent is a dark-blue to maroon color when oxidized, and colorless when reduced.
Voges–Proskauer / ˈ f oʊ ɡ ə s ˈ p r ɒ s k aʊ. ər / or VP is a test used to detect acetoin in a bacterial broth culture. The test is performed by adding alpha-naphthol and potassium hydroxide to the Voges-Proskauer broth, which is a glucose-phosphate broth that has been inoculated with bacteria. A cherry red color indicates a positive ...
Salmonella is a genus of rod-shaped, (bacillus) Gram-negative bacteria of the family Enterobacteriaceae. The two known species of Salmonella are Salmonella enterica and Salmonella bongori . S. enterica is the type species and is further divided into six subspecies [ 2 ] [ 3 ] that include over 2,650 serotypes . [ 4 ]
Bacillus albus is a gram positive, rod shaped species of bacteria. [1] [2] S.I. Paul et al. (2021) [1] isolated and characterized Bacillus albus from marine sponge of the Saint Martin's Island of the Bay of Bengal, Bangladesh. [1] Type strain of Bacillus albus sp. nov. is N35-10-2T (=MCCC 1A02146T=KCTC 33710T=LMG 28875T) [2]