BMS 212 Lecture Notes - Lecture 6: Acanthamoeba, Chrysophyta, Entamoeba
Document Summary
Survey of eukaryotes (fungi, protozoa and algae: fungi. Environmentally diverse can live in harsh conditions in terms of ph, oxygen concentrations, salinity, moisture, etc. Significant in nutrient recycling, symbiotic relationships, food/drug production. Two main types: molds and fleshy fungi. Hyphae: the body of the structure, composed of long, branched, tubular filaments. Septate: divided into separate cells by crosswalls called septa. Reproductive or aerial hypha: reproductive structures above ground. Mycelium: the overall structure, composed of intertwined hyphae forming a tangled mass: yeasts. Fission yeasts: crosswall forms in the center of the cell for equal division. *pseudohypha are environmentally dependent in the environment they tend to stay unicellular, in the host they become pseudohyphic to help push deeper into the tissues. Nutrition heterotrophic gain their nutrients from organic substrates saprobes feed off of dead organisms parasites feed off of live hosts. Form haustoria to penetrate tissues and withdraw nutrients. *haustoria: like a straw, degrades the tissue and sucks it up*
