破伤风梭菌 Figure 19.7 16 Baby with neonatal tetanus,showing spastic paralysis of the hed
16 上海交通大学通识教育核心课程《微生物的世界》 破伤风梭菌
Figure 27-19 Brock Biology of Microorganisms 11/e 2006 Pearson Prentice Hall,Inc. ©死于破伤风的士兵。 The painting by Charles Bell is in Royal College of Surgeons,Edinburgh, .Scotland /心X巴/、了口W八队寸人U个工以LU二广M
17 上海交通大学通识教育核心课程《微生物的世界》 死于破伤风的士兵。 The painting by Charles Bell is in Royal College of Surgeons, Edinburgh, Scotland
上游充通大粤 SHANGHAI JIAO TONG UNIVERSITY Toxin molecules Spinal 88 inhibitory neuron ④ Extensor Flexor Tetanospasmin (a) (b) (c) Figure 19.6 The events in tetanus.(a)Following traumatic injury,bacilli infecting the local tissues secrete tetanospasmin,which is absorbed by the peripheral axons and is carried to the target neurons in the spinal column.(b)In the spinal cord,the toxin attaches to the junctions of regulatory neurons that inhibit inappropriate contraction.Released from inhibition,the muscles receive constant stimuli and contract uncontrollably,even opposing members of a muscle group.()Muscles contract spasmodically,without regard to regulatory mechanisms or conscious control.Note the clenched jaw typical of risus sardonicus. 18 上海交通大学通识教育核心课程 《微生物的世界》
18 上海交通大学通识教育核心课程《微生物的世界》
上游充通大粤 SHANGHAI JIAO TONG UNIVERSITY 3、螺旋状 弧菌 (a) Vibrio 螺旋菌 (b) Spirillum 螺旋体 (c) Spirochete 19
19 上海交通大学通识教育核心课程《微生物的世界》 3、螺旋状 弧菌 螺旋菌 螺旋体
上帝充通大粤 SHANGHAI JIAO TONG UNIVERSITY 弧菌： 菌体只有一个弯曲，其程度不足一圈， 形似“C”字或逗号，鞭毛偏端生。 Parasite (Bdellovibrio) Host (Pseudomonas) 20 上海交通大学通识教育核心课程 《微生物的世界》
20 上海交通大学通识教育核心课程《微生物的世界》 弧菌： 菌体只有一个弯曲，其程度不足一圈， 形似“C”字或逗号，鞭毛偏端生