(-)细菌个体的形态和染色 2、杆状菌( bacillus) Single bacillus 细胞呈杆状或圆柱形,粗细稳 定,长度有较大变化。 Diplobacillus 排列方式常因生长阶段和培养条件而发s则 生变化,一般不作为分类依据。 依细胞外形为主分:短杆、 棒杆、梭杆、分枝、伏螺 杆、竹节、链状、栅状、 “八字状”、丝状
16 2、杆状菌(bacillus) 细胞呈杆状或圆柱形，粗细稳 定，长度有较大变化。 排列方式常因生长阶段和培养条件而发 生变化，一般不作为分类依据。 16 （一）细菌个体的形态和染色 • 依细胞外形为主分：短杆、 棒杆、梭杆、分枝、伏螺 杆、竹节、链状、 栅状、 “八字状”、丝状
DB104 枯草芽胞杆菌人 Bacillus subtilis 3。:。 地衣芽胞杆菌 产生抗活性物质,并具有独特的生物夺氧作用机制, Bacillus lichen整肠约能抑制致病菌的生长繁殖
17 枯草芽胞杆菌 Bacillus subtilis 地衣芽胞杆菌 Bacillus licheniformis 产生抗活性物质，并具有独特的生物夺氧作用机制， 能抑制致病菌的生长繁殖。 整肠生
铜绿假单胞菌(绿脓杆菌) seudomonas aeruginosa Figure 20.2 Papulopustular lesion on forearm of patient, which developed subsequent to use of loofah sponge overgrown with Ps. aenugino igure 20.1 his electron micrograph of Pseudomonas aeruginosa emphasizes ingle, polar flagellum. 物敏感性试 Figure2辆绿假单胞菌 金黄色葡萄球菌 An antimicrobic sensitivity test of Pseudomonas aeniginosa reveals trait to drugs and the blue-green pigment that diffuses into the medium typical of the species. The plate on the left shows its multiple resist plate of Staphylococus aureus is shown on the right for comparison
18 铜绿假单胞菌（绿脓杆菌） Pseudomonas aeruginosa 铜绿假单胞菌 金黄色葡萄球菌 药物敏感性试验
Filaments Figure 19.20 结核分枝杆菌 A fluorescent acid-fast stain of M. tubera losis from sputum. Smears are evaluated in terms of the number of AFB seen per field. This Mycobacterium tuberculosis quantity is then applied to a scale ranging from 0 to 4+, 0 being no AFB observed and 4+ being more than 9 AFB per field
19 结核分枝杆菌 Mycobacterium tuberculosis
炭疽病的病原菌 炭疽芽胞杆菌 Baci∥ s anthraci Figure 19.2 Cutaneous anthrax. (a) In early stages, the tissue around the site of invasion is inflamed and edematous. (b) A later stage reveals a thick, necrotic lesion called the eschar. It usually separates and heals spontaneously
20 炭疽病的病原菌 ----炭疽芽胞杆菌 Bacillus anthraci 20