Biology 3218F/G Lecture Notes - Lecture 2: Slime Mold, Linnaean Taxonomy, Binomial Nomenclature
7 May 2019
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Carl linnaeus: description of all organism binomial nomenclature . Domain, kingdom, phylum, class, order, family, genus, species. 5 phyla of fungi: closest relatives are magic mushrooms, evolved from slime mould. Monophyletic: single common ancestor (includes all descendants: ascomycota 4. Fungi: eukaryotic: closely related to animals, heterotopic: can"t produce own food, extracellular digestion: digest outside, nutrient absorption, cell walls contain: chitin, glucans, mannans. Filamentous growth: fungal body (thallus) composed of threads hyphae . Nutrition: spores lands and germinates (grow hyphae-allow penetrate) Everything likes sugar so problem when fungi wasn"t absorb. Enzymes: if made of chitin must be able to synthesize/modify, fungi pray on others, use chitinase to breakdown competitors chitin, pectin: penetrate plants. Cell wall first clue that fungus-like were not true fungi. Physio live high acid (ph1) or alkaline (ph9: can tolerate cold/heat (-5 to 60) or low o2 advantage against competitors. Prototroph: make compounds from simple/complex sources (c, n, inorganic ions)
