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18 Cards in this Set
- Front
- Back
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Who is Anton Van Leeuweinhoer
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He constructed the first mircoscope and was the first person to describe microbes accurately.
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Spontaneous Generation
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Life could arise from non-living material
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Arthur Miller
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Was able to polymerize amino acids using UV light and high voltage.
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Francesco Redi
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Challeneged spontaneous generation. Showed that maggots on rotting meat came from eggs.
no flies-->after 48 hours still rot must be something in the air. |
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Louis Pasteur
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Boiled broth no spoilage. Particles in air settled in neck of flask. Breaking neck of flask resulted in spoiled broth.
Came up with anthax and cholera and rabies vaccines |
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Agustino Bassi
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Fungal disease of silk worms.
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M.J Berkely
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fungal disease in great potato blight in ireland.
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de Bary
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certain fungi cause plant disease.
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Joseph Lister
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developed techniques to prevent/reduce infection during surgery. was indirect evidence for microbial involvement in disease. used things like phenol.
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Robert Koch
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Bacillus anthracis causes anthrax.
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Kochs postulates
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used to associate a microbe with a particular disease.
1)need to be able to isolate the microorganisms from infected animal. 2)must be able to grow it in pure culture. 3)Go back and infect a healthy animal and cause same disease. 4)reisolate same microbe from second animal. |
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Problems with Kochs postulates.
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99% of microbe cannot be cultured in the lab.
Second animal might be immune. Could be a virus. Ethical issue: cant infect healthy humans. |
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Charlie Chamberland
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developed filters to trap microbes.
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Edward Jennwe
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came up with the concept of vaccination. Small Pox. Prophylactic to induce the immune system to recognize some foreign entities.
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Elie Metchnikoff
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Demonstated existence of phagocytic cells.(macrophages)Blood and cell mediated immunity.
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Industrial Microbiology
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Louis Pasteur- alcoholic fermentation in microbes.(Beer:wine;lactic acid;yogurt)
concept of pasteurication-kill some of the microbes. |
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Agricultual Microbiology
Serge Winogradsky |
soil microbes capable of oxidizing a vaiety of elements (iron, slufer, ammonium) Also described Nitrogen Fixation (N=-N)-->NH4 in atmosphere-->reductive process
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Ag Micro(cont) Martinus Beijernck
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Showed that nitrogen fixation was carried out by specific plants associated bacteria.
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