Is Propionibacterium acnes catalase positive?

The organism can cause infection following surgical procedures to those areas of the body or in patients with artificial devices such as shunts or rods especially when located in the upper back or shoulder. The organism is slow growing, facultative anaerobe that can grow aerobically and is catalase positive.

Is Propionibacterium catalase positive or negative?

They test positive for catalase. Species of Propionibacterium are distinguished using indole production, nitrate test, esculin hydrolysis, gelatin liquefication, and other biochemical tests such as the fermentation of sucrose, maltose, and mannitol.

When would you perform a catalase test?

The catalase test is used to differentiate staphylococci (catalase-positive) from streptococci (catalase-negative). The enzyme, catalase, is produced by bacteria that respire using oxygen, and protects them from the toxic by-products of oxygen metabolism.

How is the catalase of Propionibacterium acnes important?

Catalase expression of Propionibacterium acnes may contribute to intracellular persistence of the bacterium in sinus macrophages of lymph nodes affected by sarcoidosis Bacterial catalase is important for intracellular survival of the bacteria.

Why is the catalase test important for anaerobic bacteria?

The catalase test is also valuable in differentiating aerobic and obligate anaerobic bacteria, as anaerobes are generally known to lack the enzyme (8, 9). In this context, the catalase test is valuable in differentiating aerotolerant strains of Clostridium, which are catalase negative, fromBacillus, which are catalase positive (8). Theory

What can I use to test for Cutibacterium acnes?

Media such as Tryptone Soya Agar Blood Agar (BTSA) can be used to examine for the presence of C. acnes.

Where are Propionibacteria found in milk and cheese?

The genus Propionibacterium is divided into two groups based on its habitat. ‘Dairy’ propionibacteria are found in milk and cheese, and some other fermented products, for example, silage, whereas propionibacteria of the ‘acnes group’ are constituted of species found on human skin, for example, Propionibacterium acnes.