【摘要】 对猪肺炎霉形体168菌株细胞及细胞膜的超微结构进行了观察。负染、扫描电镜及超薄切片结果表明,猪肺炎霉形体168菌株细胞主要为球形或椭圆形,细胞直径约为0.6微米。有些细胞质膜外还有一层似荚膜状结构。冰冻断裂电镜技术结果表明,猪肺炎霉形体膜脂双层内部有较多的内部蛋白颗粒,颗粒直径约为100埃。关于质膜外存在荚膜结构与致病性的关系进行了初步讨论。更多还原

【Abstract】 Electron microscopic observations have been made on the ultrastru-cture of cells and cell membranes of M.suipneumoniae strain 168.Results of negative staining, scanning electron microscopic and thin sectioning techniques showed that the cells are mainly spherical or elliptical in shape, with a diameter about 0.6μm. a layer of capsule-like structure was present outside the membranes of some cells.The result of freeze fracture electron microscopy showed that there are a large number of integral protein particles of about 100A in diameter within the lipid-bila-yers of cell membranes.The relationship between capsule-like structure and pathogenicity of the mycoplasma was preliminarily discussed.更多还原