Urease positive means, when there is trace of urease in blood/urine of some subject.
Urease is an enzyme that changes urea into ammonium carbonate and (occurring in bacteria, fungi, etc.)
Proteus urease is considered a positive organisim. This occurs when enterics hydrolyze urea and cause a rapid deterioation. This term is also referred to as rapid urease positive organisms.
most definitely. it is a strong positive urease producer.
No. Streptococcus species are not urease positive.
urease - negative ONPG - positive Lysine - positive
Pseudomonas aeruginosa typically shows negative results on a urease test, as it does not produce urease enzyme. This means it does not break down urea into ammonia and carbon dioxide, resulting in no change in pH and no color change in the test medium.
No, E. coli is urease-negative
Urea which is protein substrate
The enzyme responsible for metabolizing urea is urease. Urease breaks down urea into ammonia and carbon dioxide.
Proteus mirabilis and Proteus vulgaris can be differentiated based on their biochemical characteristics. One key distinction is that P. mirabilis is typically urease-positive and does not produce indole, while P. vulgaris is urease-positive and does produce indole. Additionally, P. vulgaris can be further differentiated from P. mirabilis by its motility and the ability to ferment certain carbohydrates. Laboratory tests, such as the urease test and indole test, can help confirm the identification of each species.
Urease breaks down the compound urea into ammonia and carbon dioxide.
The bacteria described is likely to be Proteus species. Proteus is negative for oxidase, motile, and positive for citrate utilization, urease production, and TSI (triple sugar iron) test showing an alkaline/no change reaction. These characteristics are commonly associated with Proteus species.
To differentiate Shigella flexneri from Yersinia pseudotuberculosis, a key lab test is the urease test. Yersinia pseudotuberculosis is urease positive, while Shigella flexneri is urease negative. Additionally, biochemical tests such as the fermentation of lactose can help, as Shigella flexneri does not ferment lactose, whereas Yersinia may show variable lactose fermentation.