Hyaluronic acid capsule Streptococcus pyogenes Chains (streptococci Plane of division (perpendicular to long axis of chain) Polysaccharide Streptococcus capsule pneumoniae Pairs (diplococci Staphylococcus aureus Clusters (staphylococci)
The Staphylococci
The Staphylococci
Morphology ldentification 鑾事 令露 容溶 Gram positive Facultative anaerobes Grape like-clusters Catalase positive Major components of normal flora skin nose Catalase test(过氧化氢
Morphology & Identification ➢ Gram positive ➢ Facultative anaerobes ➢ Grape like-clusters ➢ Catalase positive ➢ Major components of normal flora ➢skin ➢nose Catalase test（过氧化氢 酶） (-) (+)
Staphylococcus aureus 8
Staphylococcus aureus
Antigenic structure Capsule or polysaccharide slime layer Peptidoglycan Polysaccharide A teichoic acid Protein A Cytoplasmic membrane umping
Antigenic Structure