Microbiology and Immunology 2500A/B Lecture Notes - Lecture 1: Allergic Bronchopulmonary Aspergillosis, Cryptococcus Neoformans, Otomycosis
23 Dec 2016
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Document Summary
Plant like forms but they lack defined root or leaf structures and are non photosynthetic. Are assigned to their own kingdom of mycota. Can be saprophytic (grow on dead, decaying tissue) or parasitic. Unusual metabolic products can be toxic to higher animals. Grows in a manner similar to bacteria (binary fission) but 10x larger. Candida albicans - most common yeast that infects humans i. normal flora of the oropharynx, vagina, bowel and skin ii. causes acute and chronic superficial infections of the skin, nails, mucous membranes, Uti iii. serious cases in immunocompromised patients iv. has satellite lesions and thrush (white plaques: contiguous mass with satellites things outside the general area. associated with the excreta of gregarious birds - pigeons i. capsule is a major virulence factor ii. lung infection that often spreads to the brain iii. can use india ink to see the yeast with their capsules.
