Mycoplasmas a group of the smallest organisms that can be free living in nature, Pass bacterial filter and also grow on laboratory media. More than 80 species, belong to Mycoplasmatales of mollicute. 3 families can be divided:

Campylobacter Among the most widespread cause of infection in the world Cause both diarrheal and systemic diseases Campylobacter jejuni

Biological Features Aerobic, Gram, noncapsulated, rods Gray-black colonies on tellurite亚碲酸盐 medium o Metachromatic granules Chinese-letter morphology in Gram stain

Category Spore- forming: rod, Gram(+)--Clostridium Nonspore- forming: see next slides

Vibrio sp Gram-negative rods Curves or comma shaped Non-spore forming Highly motile-single polar flagella Associated with salt water Oxidase positive

大连医科大学：《医学微生物学》课程教学资源（PPT课件）第六章 细菌的感染与免疫

大连医科大学：《医学微生物学》课程教学资源（PPT课件）第五章 细菌的遗传与变异

大连医科大学：《医学微生物学》课程教学资源（PPT课件）第三章 消毒与灭菌

第一节细菌的大小与形态 第二节细菌的结构 第三节细菌形态与结构检查法

哈尔滨医科大学：《医学微生物学》课程教学资源（PPT课件）出血热病毒