Morphology & Identification Gram-negative non-spore forming rods. When motile, byperitrichous flagella. Primarily normal flora of gastrointestinal tract. E. coli>Klebsiella>Proteus>Enterobacter Free living, also transient colonizers of skin. Facultative anaerobes: mixed acid fermentation

Morphology & Identification Gram positive Facultative anaerobes Grape like-clusters Catalase positive Major components of normal flora

Symbioses Commensalism: one partner benefits and the other is neither harmed nor benefited. Mutualism: both partners benefit. Parasitism: one partner benefits at the expense of the other

Bacterial genomics Organisation Linear chromosomes Borrelia burgdorferi Streptomyces coelicolor Multiple chromosomes Vibrio cholerae Plasmids Borrelia burgdorferi

Bacteriophages ( phages ) are obligate intracellular parasites that multiply inside bacteria by making use of some or all of the host biosynthetic machinery . They are viruses that infect bacteria

The process of destroying all microbial forms. A sterile object is one free of all microbial forms, including bacterial spores

SIZE OF BACTERIA Unit for measurement : Micron or micrometer,μm: 1μm=10-3mm Size: Varies with kinds of bacteria, and also related to their age and external environment

Medical Microbiology and Parasitology Part I: Medical Microbiology Part II: Medical Parasitology

上海财经大学：证券投资基金学——证券投资基金（研修班第二部分，李曜）

上海财经大学：证券投资基金学——证券投资基金（研修班第一部分，李曜）