MIMM 211 Lecture Notes - Lecture 8: Symposium On Principles Of Programming Languages, Inclusion Bodies, Nucleoid
18 Oct 2016
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Lec 8: cytoplasm properties, endospores, cell division, popl growth. Site of numerous chem rxns metabolism. Composed of 90% water, but it"s gel-like, snotty, viscous. Ribosomes: produce proteins, large/small subunits made of rna and proteins. Inclusion bodies: none or single membranes: granules, for storage of nutrients like c, s, n, p, gas vacuoles, for floating, magnetosomes, containing fe++1. Vegetative cell sporulation endospore germination back to vegetative cell. Induced to sporulate when starved, growth conditions are unfavorable, hostile environment. Triggered to germinate when better conditions are sensed. Ex. cloistridium in gut, huge problem for cancer patients. Need to use bleach or strong detergents to kill spores. *endospores vary in location in mother cell, and size. Stretch dna into long filament, spanning cell. Split unequally to forespore and mother cell. Mother cell engulfs forespore, provides environment for forespore to mature. Mother cell dna degrades, forespore forms thick wall: Synth dipicolinic acid for heat resistance, dehydration (water 90%-->15%), ca++ for more protection.
