What are the 3 types of oxygen requirements in bacteria?

On the basis of oxygen requirements, bacteria can be divided into the following different categories:

• 0.1 Aerobes.
• 0.2 Obligate aerobes.
• 0.3 Anaerobes.
• 0.4 Obligate anaerobes.
• 0.5 Facultative anaerobes.
• 0.6 Aerotolerant anaerobes.
• 0.7 Capnophiles.
• 0.8 Microaerophiles.

Why is Staphylococcus epidermidis facultative anaerobe?

Staphylococcus epidermidis is a facultative anaerobe, i.e. it can survive in a wide range of [O2]. This bacterium thrives on human skin, where [O2] ranges from 2\% to 5\% (Peyssonnaux et al. 2008) and also in ischemic/anoxic tumors and abscesses where [O2] is zero (Atkuri et al.

What is the oxygen requirement for Staphylococcus aureus?

Staphylococcus epidermidis ATCC 12228

Is Staphylococcus aureus facultative anaerobe?

Staphylococcus aureus is a gram-positive facultative aerobe that can grow in the absence of oxygen by fermentation or by using an alternative electron acceptor.

What diseases does Staphylococcus epidermidis cause?

Staphylococcus epidermidis can cause wound infections, boils, sinus infections, endocarditis and other inflammations.

What is the best antibiotic for Staphylococcus epidermidis?

Penicillin G, semisynthetic penicillinase-resistant penicillins, and cephalosporins are effective for the treatment of methicillin-sensitive Staph. epidermidis infections. Vancomycin is the drug of choice for infections caused by methicillin-resistant organisms.

What are the symptoms of Staphylococcus aureus?

Symptoms include redness, swelling, and pain at the site of infection.

• S. aureus can also cause serious infections such as pneumonia (infection of the lungs) or bacteremia (bloodstream infection).
• If you suspect you may have an infection with S. aureus contact your health care provider.

What are the benefits of Staphylococcus aureus?

Staphylococcus aureus found on healthy human skin and in nasal passages are in effect acting as a commensal, rather than a pathogen. Certain strains of S. aureus have been shown to produce bacteriocins such as staphylococcin 462, a peptide responsible for growth inhibition of other S.

Why is Staphylococcus aureus Gram positive?

Gram-positive bacteria such as Staphylococcus aureus have cell walls that lack an outer membrane. Instead, they have a single cytoplasmic membrane surrounded by a thick exposed peptidoglycan layer.