BSC 431 Lecture Notes - Lecture 28: Flucytosine, Aspergillus, Vaginal Yeast Infection
22 Mar 2016
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10/29/2015 (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) Yeasts: unicellular, reproduce by budding or fission: daughter cell may elongate to form pseudohyphae. Molds: multicellular, consisting of threadlike structures called hyphae, some divided, others not. Mycelium- an interwoven mat of hyphae that surrounds and can infiltrate the food source. Characterization can be used to identify species. Vegetative hyphae- grow on or beneath the surface of culture medium. Arial hyphae- produce specialized asexual reproductive structures (cid:1) (cid:1) called conidia. Given specific names according to their morphology (cid:1) (cid:1) (cid:1) form (cid:1) (cid:1) (cid:1) Many fungi of medical importance can exist as both a mold and a yeast. Slow growing organisms, especially when compared to bacteria. Only about 200 fungi are known to cause human disease although number is increasing (cid:1) (cid:1) (cid:1) Fungi reproduce by the formation of spores, either sexually or asexually (cid:1)
