BIOL 2604 Lecture 1: Lecture 1 Notes History
27 Jan 2019
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Why is microbiology important: diseases of humans, animals, and plants, bacterial diseases strep throat, mrsa, lyme disease, tuberculosis, helicobacter is a bacterial infection that burrows into the mucosal lining of the stomach which can cause ulcers. Ubiquity of biological ice nucleators in snowfall: crystallization of ice happens most frequently around some ice-nucleating particle, some bacteria produce ice-nucleating proteins, most snowflakes contain a bacterial cell at their center. Could see bacteria: first person to ever see and describe bacteria. Louis pasteur (mid 1800s: swan-necked flask experiments helped him disprove the theory of spontaneous generation, showed that germs and microorganisms in the air were the cause for things growing in the growth medium. Joseph lister (mid 1800s: concept of disinfection of wounds and surgical rooms. Pure culture techniques: robert koch: koch first used potato slices, gelatin or starch under a bell jar, petri dishes, julius petri, gelatin (mp = 28 celsius, metabolized) vs agar (solid at 37 celsius, not metabolized, fannie and.
