3813-002Day4.Posted - many types do not grow under those...

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1 Day 4 Mon 8/29/11 topics • Pasteur, Koch, et al. , medical mbio • Delft School, ecological mbio • Microbial cells, classification, structure,… Louis Pasteur • Did not win the Nobel Prize. Why? Timing Louis Pasteur (1822-1895) Alfred Nobel (1833-1896) Nobel Prizes began after Nobel’s death F 1.22 Winogradsky Column [O 2 ] . h ν F 1.22 Winogradsky Column Oxygenic photosynth ( H 2 O ) Anaerobic photosynth S o ; S -2 SO 4 -2 ---> S -2 Organic matter
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2 Winogradsky Enrichment Cult. Enrichment Medium: NH 4 Cl, other mineral salts, silica gel solidifying agent for plates Could any microorganisms grow on these plates? Winogradsky Enrichment Cult. Enrichment Medium: NH 4 + (NH 3 ) ---> NO 3 - (energy source; e - ; ) CO 2 ---> HCHO (input: e - [H + + e - ]; energy) (HCHO, avg oxidation state of C in cell) M. Beijerinck • Enrichment Culture – Azotobacter sp. grows w/out NH 3 (1900) • Natural selection in test tube for microbes which grow under certain conditions whereas
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Unformatted text preview: many types do not grow under those conditions Viruses Plant viruses, 1900, filterable particles, causative agents of disease (TMV) Delft School Van Leeuwenhoek Beijerinck Kluyver, van Niel, Winogradsky Microbial Ecology Many OU Microbiology Faculty trace scientific lineages back to van Niel, therefore to Beijerinck and the Delft School E.g. McInerney, Tanner, Krumholz, Stephenson, Karr, Nagle,. 3 10 What does life look like? Is there life on Mars or other planets (moons)? How will we recognize it? organization metabolism reproduction motion H 2 O (s) found on Mars Deep Sea Hydrothermal Vent Community H 2 S + O 2 + CO 2--> H 2 SO 4 + H 2 O + Bact cells Bact cells + worm--> more worm What is a: Prokaryote Eukaryote...
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3813-002Day4.Posted - many types do not grow under those...

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