1、中南大学基础医学院微生物学系Coccus (球菌)Pathogenic coccus (病原性球菌)Staphylococcus (葡萄球菌属)S.aureus (金黄色葡萄球菌) coagulase-negative staphylococcus(凝固酶阴性葡萄球菌)Streptococcus (链球菌属)Streptococcus pyogenes (化脓性链球菌)S.pneumoniae (肺炎链球菌)Neisseria (奈瑟菌属)Neisseria meningitis (脑膜炎奈瑟菌)Neisseria gonorrhea (淋病奈瑟菌)ClassificationStaphylo
2、coccus (葡萄球菌) G+Streptococcus (链球菌) meningococcus (脑膜炎球菌)G-gonococcus (淋球菌)pyogenic coccus(化脓性球菌)Staphylococcus and Streptococcus(葡萄球菌属与链球菌)Biological characters(生物学特性)1. MorphologyStaphylococcus StreptococcusCoccus，G+ grape-like clusters Coccus，G+，pairs or chains2. CultureStaphylococcus Streptococc
3、us均为兼性厌氧菌，营养要求不高。Individual colony is circular,23 mm in diameter with a smooth, shiny surface; appear opaque and are often pigmented多数菌株为兼性厌氧菌，营养要求较高。After 24 hours of incubation on blood agar, 0.50.75 mm white colonies with or without zones of hemolysis are observed S.aureusS.epidermidisS.saprophyt
4、icus-hemolytic streptococcus-hemolytic streptococcus -streptococcusIncomplete hemolysis, green zone around coloniesComplete hemolysis, clear zone around coloniesStaphylococcus Streptococcus葡萄球菌抗原结构复杂，有荚膜抗原、磷壁酸抗原、肽聚糖抗原及蛋白质抗原等，其中以葡萄球菌A蛋白(staphylococcus A protein，SPA )最为重要。链球菌抗原结构亦较复杂，有C多糖抗原、M蛋白抗原及核蛋白抗原。3Antigenic structure
