 |
 |
Baird Parker Agar |
Staphylococcus aureus on Baird Parker Agar. Cultivation 24 hours, aerobic atmosphere, 37°C.).
Lithium chloride and potassium tellurite act as selective agents. Egg yolk is the substrate to detect lecithinase production and lipase activity. Staphylococci produce dark gray to black colonies due to tellurite reduction; staphylococci that produce lecithinase break down the egg yolk and cause clear zones around respective colonies. An opaque zone of precipitation may form due to lipase activity (S.aureus).
Text: Wikipedia
|
Microscopy:
Gram-positive cocci, nonmotile, tend to be arranged in grape-like clusters. |
|
