MBIO 3812 Ex 2-6, 2-7, 2-8 Aerotolerance

MBIO 3812 Ex 2-6, 2-7, 2-8 Aerotolerance - MBIO 3812...

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MBIO 3812 AEROTOLERANCE = the ability or inability to live in the presence of O2 Different bacterial species have different O2 requirements OBLIGATE AEROBES = MUST have O2 to survive and grow FACULTATIVE ANAEROBES = can grow in the presence OR absence of O2 AEROTOLERANT ANAEROBES = do NOT need O2 BUT can survive in the presence of O2 11
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MBIO 3812 AEROTOLERANCE = the ability or inability to live in the presence of O2 Different bacterial species have different O2 requirements MICROAEROPHILES = survive ONLY when O2 levels are low CAPNOLPHILES = survive ONLY when CO2 levels are high OBLIGATE ANAEROBES = ANY O2 will KILL the bacteria 22
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MBIO 3812 AEROTOLERANCE autoclaving removes most free O2 from media; however, as the media cools oxygen starts to diffuse back into the media when media is in a tube the diffusion of O2 back into the broth or agar results in a concentration gradient surface of the media in a tube will have a high O2 concentration since it is exposed to the air while media at the bottom of the tube will have no O2 bacteria will grow where the O2 concentration in the tube is optimal for that organism 33
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MBIO 3812 AEROTOLERANCE bacteria will grow where the O2 concentration in the tube is optimal for that organism
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55 MBIO 3812 Ex 2-6 Agar Deep Stabs
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This note was uploaded on 09/26/2011 for the course MBIO 3812 taught by Professor Staff during the Fall '11 term at The University of Oklahoma.

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MBIO 3812 Ex 2-6, 2-7, 2-8 Aerotolerance - MBIO 3812...

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