BIOL 209 Lecture Notes - Lecture 9: Ascocarp, Saccharomycotina, Ascus
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Lecture 9: white outline indicates a/an, hymenium, cell in mitosis, cell in meiosis, ascus, more than one option, cells in (cid:858)b(cid:859) are mat1. Cells in (cid:858)a(cid:859) are: 1/2 mat1; mat2, a1b2 & a3b7, a1b2 & a2b2, mat2, mat1, structures are (1)__________ and (2)__________, cleistothecium; perrithecium, perrithecium; cleistothecium, cleistothecium; apothecium, both cleistothecia, modified apothecium; perrithecium. Ascomycota subphylum saccharomycotina: yeasts or hyphal, no ascomata. Perrithecium: like a cleistothecium, except pear shaped with a hole in the top. Asexual reproduction is through yeasts or hyphae. Sexual reproduction: no ascoma (asci are naked, 4 ascospores/ascus (often, no n+n phase. The famous fungi is saccaromyces: their glucose breaks down into ethanol (wine/beer) and carbon dioxide (used for bread leavening and beers, widely used in molecular biology and classical biochemistry. Being diploid is the usual state for yeast: because of that, it can already undergo meiosis, candida albicans. Dimorphic (2 forms: yeast budding, hyphal conidia. Asymptomatic symbiont (living in close physiological proximity)
