BIO 121 Lecture Notes - Lecture 12: Blumeria Graminis, Leafcutter Ant, Candida Albicans
10 Dec 2020
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Document Summary
Descendants of a common ancestor with flagella. Cell wall (distinct from bacterial, plant cell walls) Cell wall has chitin (distinct from chitin of arthropod animals) Long polymerized carb molecule that provides structural rigidity. 4-5 groups of fungi have one celled/multi celled forms. No one celled forms known in glomeromycetes. Some hyphae are separated by septa which are incomplete walls; others are individual filaments are hyphae coenocytic (multiple nuclei) Many species can tolerate temperatures extremes and high concentrations of nutrients (hypertonic) Mycelia are usually unseen; yet grow quick and can become big. Majority are saprobic: feed on dead organic matter. Facultative: can switch between saprobic and parasitic. Some fungi are pathogens in humans, candida albicans in immunosuppressed patients in plants, many crops disease. Corn smut fun (huitlacoche) (a delicacy in mexico) Many leaf cutter ant are fungi farmers. Arthrobotrys anchonia, trap worm and digest it. Ants feed on leaves to fungal mycelia in nest the farm is single.
