1. Good growth on common medium (aerobic or facultative anaerobic, optimal growth temperature 37 ℃, pH7.4, low nutritional requirements, adding a small amount of glucose or blood growth is more vigorous.) The plate does not grow.
2. Better growth on blood plate, pathogenic strain β hemolysis 3. Produce yellow pigment 4. Highly salt-tolerant: Can grow in 7.5 ~ 15% NaCl broth.
5. Decomposes glucose, milk, wheat, sucrose, produces acid without gas, positive for catalase, and pathogenic strains can decompose mannitol. 6. Toxins and enzymes produced by Staphylococcus aureus (pathogenic factor P149) 1) Hemolytic toxin 2) Leukocidin
3) Plasma coagulase: an important indicator to distinguish whether staphylococcus is pathogenic.
4) Deoxyribonuclease: 5) Enterotoxin 6) Cellolytic proteinase 7) Hyaluronidase
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