Staphylococcus aureus is a Gram-positive spherically shaped bacterium, a member of the Bacillota, and is a usual member of the microbiota of the body, frequently found in the upper …

Jul 17, 2023 · Staphylococcus aureus is Gram-positive bacteria (stain purple by Gram stain) that are cocci-shaped and tend to be arranged in clusters that are described as “grape-like.” On …

Oct 23, 2024 · The Gram stain showing typical Gram-positive cocci that occur singly and in pairs, tetrads, short chains, and irregular grape-like clusters can be suspected to be S. aureus.

Major Characteristics of Staphylococcus aureus Gram stain: Staphylococci appear as Gram-positive cocci that occur singly and in pairs, tetrads, short chains, and irregular grape-like clusters

4 days ago · Staphylococcus aureus, commonly known as S. aureus, is a Gram-positive, facultative anaerobic bacterium belonging to the Staphylococcaceae family.

A Gram stain is a laboratory test that checks for bacteria or sometimes fungi at the site of a suspected infection or in bodily fluids using a series of stains.

Sep 4, 2025 · Staphylococci are gram-positive aerobic organisms. Staphylococcus aureus is the most pathogenic; it typically causes skin infections and sometimes pneumonia, endocarditis, …

Aug 1, 2013 · Definition / general Gram stain: positive Morphology: cocci in clusters Facultative anaerobe Part of normal flora of skin, mucus membranes, nasal passages

Carotenoid pigment staphyloxanthin is responsible for the characteristic golden colour of S. aureus colonies. This pigment acts as a virulence factor. Cultivation 24 hours in an aerobic …

Jul 26, 2025 · When Gram-stained, Staphylococcus aureus retains the primary stain, appearing blue to purple and classifying it as a Gram-positive bacterium. This purple coloration is due to …